From: ronag Date: Wed, 23 Nov 2011 15:11:26 +0000 (+0000) Subject: (no commit message) X-Git-Tag: dependencies_subtree~7 X-Git-Url: https://git.sesse.net/?p=casparcg;a=commitdiff_plain;h=b18dd8759ea3b45ea7a3724f70d289e0a14d09b8 --- diff --git a/ffmpeg 0.8/include/inttypes.h b/ffmpeg 0.8/include/inttypes.h new file mode 100644 index 000000000..25542771f --- /dev/null +++ b/ffmpeg 0.8/include/inttypes.h @@ -0,0 +1,305 @@ +// ISO C9x compliant inttypes.h for Microsoft Visual Studio +// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 +// +// Copyright (c) 2006 Alexander Chemeris +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// 3. The name of the author may be used to endorse or promote products +// derived from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO +// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; +// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF +// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +/////////////////////////////////////////////////////////////////////////////// + +#ifndef _MSC_VER // [ +#error "Use this header only with Microsoft Visual C++ compilers!" +#endif // _MSC_VER ] + +#ifndef _MSC_INTTYPES_H_ // [ +#define _MSC_INTTYPES_H_ + +#if _MSC_VER > 1000 +#pragma once +#endif + +#include "stdint.h" + +// 7.8 Format conversion of integer types + +typedef struct { + intmax_t quot; + intmax_t rem; +} imaxdiv_t; + +// 7.8.1 Macros for format specifiers + +#if !defined(__cplusplus) || defined(__STDC_FORMAT_MACROS) // [ See footnote 185 at page 198 + +// The fprintf macros for signed integers are: +#define PRId8 "d" +#define PRIi8 "i" +#define PRIdLEAST8 "d" +#define PRIiLEAST8 "i" +#define PRIdFAST8 "d" +#define PRIiFAST8 "i" + +#define PRId16 "hd" +#define PRIi16 "hi" +#define PRIdLEAST16 "hd" +#define PRIiLEAST16 "hi" +#define PRIdFAST16 "hd" +#define PRIiFAST16 "hi" + +#define PRId32 "I32d" +#define PRIi32 "I32i" +#define PRIdLEAST32 "I32d" +#define PRIiLEAST32 "I32i" +#define PRIdFAST32 "I32d" +#define PRIiFAST32 "I32i" + +#define PRId64 "I64d" +#define PRIi64 "I64i" +#define PRIdLEAST64 "I64d" +#define PRIiLEAST64 "I64i" +#define PRIdFAST64 "I64d" +#define PRIiFAST64 "I64i" + +#define PRIdMAX "I64d" +#define PRIiMAX "I64i" + +#define PRIdPTR "Id" +#define PRIiPTR "Ii" + +// The fprintf macros for unsigned integers are: +#define PRIo8 "o" +#define PRIu8 "u" +#define PRIx8 "x" +#define PRIX8 "X" +#define PRIoLEAST8 "o" +#define PRIuLEAST8 "u" +#define PRIxLEAST8 "x" +#define PRIXLEAST8 "X" +#define PRIoFAST8 "o" +#define PRIuFAST8 "u" +#define PRIxFAST8 "x" +#define PRIXFAST8 "X" + +#define PRIo16 "ho" +#define PRIu16 "hu" +#define PRIx16 "hx" +#define PRIX16 "hX" +#define PRIoLEAST16 "ho" +#define PRIuLEAST16 "hu" +#define PRIxLEAST16 "hx" +#define PRIXLEAST16 "hX" +#define PRIoFAST16 "ho" +#define PRIuFAST16 "hu" +#define PRIxFAST16 "hx" +#define PRIXFAST16 "hX" + +#define PRIo32 "I32o" +#define PRIu32 "I32u" +#define PRIx32 "I32x" +#define PRIX32 "I32X" +#define PRIoLEAST32 "I32o" +#define PRIuLEAST32 "I32u" +#define PRIxLEAST32 "I32x" +#define PRIXLEAST32 "I32X" +#define PRIoFAST32 "I32o" +#define PRIuFAST32 "I32u" +#define PRIxFAST32 "I32x" +#define PRIXFAST32 "I32X" + +#define PRIo64 "I64o" +#define PRIu64 "I64u" +#define PRIx64 "I64x" +#define PRIX64 "I64X" +#define PRIoLEAST64 "I64o" +#define PRIuLEAST64 "I64u" +#define PRIxLEAST64 "I64x" +#define PRIXLEAST64 "I64X" +#define PRIoFAST64 "I64o" +#define PRIuFAST64 "I64u" +#define PRIxFAST64 "I64x" +#define PRIXFAST64 "I64X" + +#define PRIoMAX "I64o" +#define PRIuMAX "I64u" +#define PRIxMAX "I64x" +#define PRIXMAX "I64X" + +#define PRIoPTR "Io" +#define PRIuPTR "Iu" +#define PRIxPTR "Ix" +#define PRIXPTR "IX" + +// The fscanf macros for signed integers are: +#define SCNd8 "d" +#define SCNi8 "i" +#define SCNdLEAST8 "d" +#define SCNiLEAST8 "i" +#define SCNdFAST8 "d" +#define SCNiFAST8 "i" + +#define SCNd16 "hd" +#define SCNi16 "hi" +#define SCNdLEAST16 "hd" +#define SCNiLEAST16 "hi" +#define SCNdFAST16 "hd" +#define SCNiFAST16 "hi" + +#define SCNd32 "ld" +#define SCNi32 "li" +#define SCNdLEAST32 "ld" +#define SCNiLEAST32 "li" +#define SCNdFAST32 "ld" +#define SCNiFAST32 "li" + +#define SCNd64 "I64d" +#define SCNi64 "I64i" +#define SCNdLEAST64 "I64d" +#define SCNiLEAST64 "I64i" +#define SCNdFAST64 "I64d" +#define SCNiFAST64 "I64i" + +#define SCNdMAX "I64d" +#define SCNiMAX "I64i" + +#ifdef _WIN64 // [ +# define SCNdPTR "I64d" +# define SCNiPTR "I64i" +#else // _WIN64 ][ +# define SCNdPTR "ld" +# define SCNiPTR "li" +#endif // _WIN64 ] + +// The fscanf macros for unsigned integers are: +#define SCNo8 "o" +#define SCNu8 "u" +#define SCNx8 "x" +#define SCNX8 "X" +#define SCNoLEAST8 "o" +#define SCNuLEAST8 "u" +#define SCNxLEAST8 "x" +#define SCNXLEAST8 "X" +#define SCNoFAST8 "o" +#define SCNuFAST8 "u" +#define SCNxFAST8 "x" +#define SCNXFAST8 "X" + +#define SCNo16 "ho" +#define SCNu16 "hu" +#define SCNx16 "hx" +#define SCNX16 "hX" +#define SCNoLEAST16 "ho" +#define SCNuLEAST16 "hu" +#define SCNxLEAST16 "hx" +#define SCNXLEAST16 "hX" +#define SCNoFAST16 "ho" +#define SCNuFAST16 "hu" +#define SCNxFAST16 "hx" +#define SCNXFAST16 "hX" + +#define SCNo32 "lo" +#define SCNu32 "lu" +#define SCNx32 "lx" +#define SCNX32 "lX" +#define SCNoLEAST32 "lo" +#define SCNuLEAST32 "lu" +#define SCNxLEAST32 "lx" +#define SCNXLEAST32 "lX" +#define SCNoFAST32 "lo" +#define SCNuFAST32 "lu" +#define SCNxFAST32 "lx" +#define SCNXFAST32 "lX" + +#define SCNo64 "I64o" +#define SCNu64 "I64u" +#define SCNx64 "I64x" +#define SCNX64 "I64X" +#define SCNoLEAST64 "I64o" +#define SCNuLEAST64 "I64u" +#define SCNxLEAST64 "I64x" +#define SCNXLEAST64 "I64X" +#define SCNoFAST64 "I64o" +#define SCNuFAST64 "I64u" +#define SCNxFAST64 "I64x" +#define SCNXFAST64 "I64X" + +#define SCNoMAX "I64o" +#define SCNuMAX "I64u" +#define SCNxMAX "I64x" +#define SCNXMAX "I64X" + +#ifdef _WIN64 // [ +# define SCNoPTR "I64o" +# define SCNuPTR "I64u" +# define SCNxPTR "I64x" +# define SCNXPTR "I64X" +#else // _WIN64 ][ +# define SCNoPTR "lo" +# define SCNuPTR "lu" +# define SCNxPTR "lx" +# define SCNXPTR "lX" +#endif // _WIN64 ] + +#endif // __STDC_FORMAT_MACROS ] + +// 7.8.2 Functions for greatest-width integer types + +// 7.8.2.1 The imaxabs function +#define imaxabs _abs64 + +// 7.8.2.2 The imaxdiv function + +// This is modified version of div() function from Microsoft's div.c found +// in %MSVC.NET%\crt\src\div.c +#ifdef STATIC_IMAXDIV // [ +static +#else // STATIC_IMAXDIV ][ +_inline +#endif // STATIC_IMAXDIV ] +imaxdiv_t __cdecl imaxdiv(intmax_t numer, intmax_t denom) +{ + imaxdiv_t result; + + result.quot = numer / denom; + result.rem = numer % denom; + + if (numer < 0 && result.rem > 0) { + // did division wrong; must fix up + ++result.quot; + result.rem -= denom; + } + + return result; +} + +// 7.8.2.3 The strtoimax and strtoumax functions +#define strtoimax _strtoi64 +#define strtoumax _strtoui64 + +// 7.8.2.4 The wcstoimax and wcstoumax functions +#define wcstoimax _wcstoi64 +#define wcstoumax _wcstoui64 + + +#endif // _MSC_INTTYPES_H_ ] diff --git a/ffmpeg 0.8/include/libavcodec/avcodec.h b/ffmpeg 0.8/include/libavcodec/avcodec.h new file mode 100644 index 000000000..dfd396c18 --- /dev/null +++ b/ffmpeg 0.8/include/libavcodec/avcodec.h @@ -0,0 +1,4529 @@ +/* + * copyright (c) 2001 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_AVCODEC_H +#define AVCODEC_AVCODEC_H + +/** + * @file + * external API header + */ + +#include +#include "libavutil/samplefmt.h" +#include "libavutil/avutil.h" +#include "libavutil/cpu.h" +#include "libavutil/dict.h" +#include "libavutil/log.h" +#include "libavutil/pixfmt.h" +#include "libavutil/rational.h" + +#include "libavcodec/version.h" + +/** + * Identify the syntax and semantics of the bitstream. + * The principle is roughly: + * Two decoders with the same ID can decode the same streams. + * Two encoders with the same ID can encode compatible streams. + * There may be slight deviations from the principle due to implementation + * details. + * + * If you add a codec ID to this list, add it so that + * 1. no value of a existing codec ID changes (that would break ABI), + * 2. Give it a value which when taken as ASCII is recognized uniquely by a human as this specific codec. + * This ensures that 2 forks can independantly add CodecIDs without producing conflicts. + */ +enum CodecID { + CODEC_ID_NONE, + + /* video codecs */ + CODEC_ID_MPEG1VIDEO, + CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding + CODEC_ID_MPEG2VIDEO_XVMC, + CODEC_ID_H261, + CODEC_ID_H263, + CODEC_ID_RV10, + CODEC_ID_RV20, + CODEC_ID_MJPEG, + CODEC_ID_MJPEGB, + CODEC_ID_LJPEG, + CODEC_ID_SP5X, + CODEC_ID_JPEGLS, + CODEC_ID_MPEG4, + CODEC_ID_RAWVIDEO, + CODEC_ID_MSMPEG4V1, + CODEC_ID_MSMPEG4V2, + CODEC_ID_MSMPEG4V3, + CODEC_ID_WMV1, + CODEC_ID_WMV2, + CODEC_ID_H263P, + CODEC_ID_H263I, + CODEC_ID_FLV1, + CODEC_ID_SVQ1, + CODEC_ID_SVQ3, + CODEC_ID_DVVIDEO, + CODEC_ID_HUFFYUV, + CODEC_ID_CYUV, + CODEC_ID_H264, + CODEC_ID_INDEO3, + CODEC_ID_VP3, + CODEC_ID_THEORA, + CODEC_ID_ASV1, + CODEC_ID_ASV2, + CODEC_ID_FFV1, + CODEC_ID_4XM, + CODEC_ID_VCR1, + CODEC_ID_CLJR, + CODEC_ID_MDEC, + CODEC_ID_ROQ, + CODEC_ID_INTERPLAY_VIDEO, + CODEC_ID_XAN_WC3, + CODEC_ID_XAN_WC4, + CODEC_ID_RPZA, + CODEC_ID_CINEPAK, + CODEC_ID_WS_VQA, + CODEC_ID_MSRLE, + CODEC_ID_MSVIDEO1, + CODEC_ID_IDCIN, + CODEC_ID_8BPS, + CODEC_ID_SMC, + CODEC_ID_FLIC, + CODEC_ID_TRUEMOTION1, + CODEC_ID_VMDVIDEO, + CODEC_ID_MSZH, + CODEC_ID_ZLIB, + CODEC_ID_QTRLE, + CODEC_ID_SNOW, + CODEC_ID_TSCC, + CODEC_ID_ULTI, + CODEC_ID_QDRAW, + CODEC_ID_VIXL, + CODEC_ID_QPEG, + CODEC_ID_PNG, + CODEC_ID_PPM, + CODEC_ID_PBM, + CODEC_ID_PGM, + CODEC_ID_PGMYUV, + CODEC_ID_PAM, + CODEC_ID_FFVHUFF, + CODEC_ID_RV30, + CODEC_ID_RV40, + CODEC_ID_VC1, + CODEC_ID_WMV3, + CODEC_ID_LOCO, + CODEC_ID_WNV1, + CODEC_ID_AASC, + CODEC_ID_INDEO2, + CODEC_ID_FRAPS, + CODEC_ID_TRUEMOTION2, + CODEC_ID_BMP, + CODEC_ID_CSCD, + CODEC_ID_MMVIDEO, + CODEC_ID_ZMBV, + CODEC_ID_AVS, + CODEC_ID_SMACKVIDEO, + CODEC_ID_NUV, + CODEC_ID_KMVC, + CODEC_ID_FLASHSV, + CODEC_ID_CAVS, + CODEC_ID_JPEG2000, + CODEC_ID_VMNC, + CODEC_ID_VP5, + CODEC_ID_VP6, + CODEC_ID_VP6F, + CODEC_ID_TARGA, + CODEC_ID_DSICINVIDEO, + CODEC_ID_TIERTEXSEQVIDEO, + CODEC_ID_TIFF, + CODEC_ID_GIF, +#if LIBAVCODEC_VERSION_MAJOR == 53 + CODEC_ID_FFH264, +#endif + CODEC_ID_DXA, + CODEC_ID_DNXHD, + CODEC_ID_THP, + CODEC_ID_SGI, + CODEC_ID_C93, + CODEC_ID_BETHSOFTVID, + CODEC_ID_PTX, + CODEC_ID_TXD, + CODEC_ID_VP6A, + CODEC_ID_AMV, + CODEC_ID_VB, + CODEC_ID_PCX, + CODEC_ID_SUNRAST, + CODEC_ID_INDEO4, + CODEC_ID_INDEO5, + CODEC_ID_MIMIC, + CODEC_ID_RL2, +#if LIBAVCODEC_VERSION_MAJOR == 53 + CODEC_ID_8SVX_EXP, + CODEC_ID_8SVX_FIB, +#endif + CODEC_ID_ESCAPE124, + CODEC_ID_DIRAC, + CODEC_ID_BFI, + CODEC_ID_CMV, + CODEC_ID_MOTIONPIXELS, + CODEC_ID_TGV, + CODEC_ID_TGQ, + CODEC_ID_TQI, + CODEC_ID_AURA, + CODEC_ID_AURA2, + CODEC_ID_V210X, + CODEC_ID_TMV, + CODEC_ID_V210, + CODEC_ID_DPX, + CODEC_ID_MAD, + CODEC_ID_FRWU, + CODEC_ID_FLASHSV2, + CODEC_ID_CDGRAPHICS, + CODEC_ID_R210, + CODEC_ID_ANM, + CODEC_ID_BINKVIDEO, + CODEC_ID_IFF_ILBM, + CODEC_ID_IFF_BYTERUN1, + CODEC_ID_KGV1, + CODEC_ID_YOP, + CODEC_ID_VP8, + CODEC_ID_PICTOR, + CODEC_ID_ANSI, + CODEC_ID_A64_MULTI, + CODEC_ID_A64_MULTI5, + CODEC_ID_R10K, + CODEC_ID_MXPEG, + CODEC_ID_LAGARITH, + CODEC_ID_PRORES, + CODEC_ID_JV, + CODEC_ID_DFA, + CODEC_ID_WMV3IMAGE, + CODEC_ID_VC1IMAGE, +#if LIBAVCODEC_VERSION_MAJOR == 53 + CODEC_ID_G723_1_DEPRECATED, + CODEC_ID_G729_DEPRECATED, +#endif + CODEC_ID_UTVIDEO_DEPRECATED, + CODEC_ID_BMV_VIDEO, + CODEC_ID_VBLE, + CODEC_ID_UTVIDEO = 0x800, + + CODEC_ID_G2M = MKBETAG( 0 ,'G','2','M'), + + /* various PCM "codecs" */ + CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs + CODEC_ID_PCM_S16LE = 0x10000, + CODEC_ID_PCM_S16BE, + CODEC_ID_PCM_U16LE, + CODEC_ID_PCM_U16BE, + CODEC_ID_PCM_S8, + CODEC_ID_PCM_U8, + CODEC_ID_PCM_MULAW, + CODEC_ID_PCM_ALAW, + CODEC_ID_PCM_S32LE, + CODEC_ID_PCM_S32BE, + CODEC_ID_PCM_U32LE, + CODEC_ID_PCM_U32BE, + CODEC_ID_PCM_S24LE, + CODEC_ID_PCM_S24BE, + CODEC_ID_PCM_U24LE, + CODEC_ID_PCM_U24BE, + CODEC_ID_PCM_S24DAUD, + CODEC_ID_PCM_ZORK, + CODEC_ID_PCM_S16LE_PLANAR, + CODEC_ID_PCM_DVD, + CODEC_ID_PCM_F32BE, + CODEC_ID_PCM_F32LE, + CODEC_ID_PCM_F64BE, + CODEC_ID_PCM_F64LE, + CODEC_ID_PCM_BLURAY, + CODEC_ID_PCM_LXF, + CODEC_ID_S302M, + CODEC_ID_PCM_S8_PLANAR, + + /* various ADPCM codecs */ + CODEC_ID_ADPCM_IMA_QT = 0x11000, + CODEC_ID_ADPCM_IMA_WAV, + CODEC_ID_ADPCM_IMA_DK3, + CODEC_ID_ADPCM_IMA_DK4, + CODEC_ID_ADPCM_IMA_WS, + CODEC_ID_ADPCM_IMA_SMJPEG, + CODEC_ID_ADPCM_MS, + CODEC_ID_ADPCM_4XM, + CODEC_ID_ADPCM_XA, + CODEC_ID_ADPCM_ADX, + CODEC_ID_ADPCM_EA, + CODEC_ID_ADPCM_G726, + CODEC_ID_ADPCM_CT, + CODEC_ID_ADPCM_SWF, + CODEC_ID_ADPCM_YAMAHA, + CODEC_ID_ADPCM_SBPRO_4, + CODEC_ID_ADPCM_SBPRO_3, + CODEC_ID_ADPCM_SBPRO_2, + CODEC_ID_ADPCM_THP, + CODEC_ID_ADPCM_IMA_AMV, + CODEC_ID_ADPCM_EA_R1, + CODEC_ID_ADPCM_EA_R3, + CODEC_ID_ADPCM_EA_R2, + CODEC_ID_ADPCM_IMA_EA_SEAD, + CODEC_ID_ADPCM_IMA_EA_EACS, + CODEC_ID_ADPCM_EA_XAS, + CODEC_ID_ADPCM_EA_MAXIS_XA, + CODEC_ID_ADPCM_IMA_ISS, + CODEC_ID_ADPCM_G722, + + /* AMR */ + CODEC_ID_AMR_NB = 0x12000, + CODEC_ID_AMR_WB, + + /* RealAudio codecs*/ + CODEC_ID_RA_144 = 0x13000, + CODEC_ID_RA_288, + + /* various DPCM codecs */ + CODEC_ID_ROQ_DPCM = 0x14000, + CODEC_ID_INTERPLAY_DPCM, + CODEC_ID_XAN_DPCM, + CODEC_ID_SOL_DPCM, + + /* audio codecs */ + CODEC_ID_MP2 = 0x15000, + CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3 + CODEC_ID_AAC, + CODEC_ID_AC3, + CODEC_ID_DTS, + CODEC_ID_VORBIS, + CODEC_ID_DVAUDIO, + CODEC_ID_WMAV1, + CODEC_ID_WMAV2, + CODEC_ID_MACE3, + CODEC_ID_MACE6, + CODEC_ID_VMDAUDIO, +#if LIBAVCODEC_VERSION_MAJOR == 53 + CODEC_ID_SONIC, + CODEC_ID_SONIC_LS, +#endif + CODEC_ID_FLAC, + CODEC_ID_MP3ADU, + CODEC_ID_MP3ON4, + CODEC_ID_SHORTEN, + CODEC_ID_ALAC, + CODEC_ID_WESTWOOD_SND1, + CODEC_ID_GSM, ///< as in Berlin toast format + CODEC_ID_QDM2, + CODEC_ID_COOK, + CODEC_ID_TRUESPEECH, + CODEC_ID_TTA, + CODEC_ID_SMACKAUDIO, + CODEC_ID_QCELP, + CODEC_ID_WAVPACK, + CODEC_ID_DSICINAUDIO, + CODEC_ID_IMC, + CODEC_ID_MUSEPACK7, + CODEC_ID_MLP, + CODEC_ID_GSM_MS, /* as found in WAV */ + CODEC_ID_ATRAC3, + CODEC_ID_VOXWARE, + CODEC_ID_APE, + CODEC_ID_NELLYMOSER, + CODEC_ID_MUSEPACK8, + CODEC_ID_SPEEX, + CODEC_ID_WMAVOICE, + CODEC_ID_WMAPRO, + CODEC_ID_WMALOSSLESS, + CODEC_ID_ATRAC3P, + CODEC_ID_EAC3, + CODEC_ID_SIPR, + CODEC_ID_MP1, + CODEC_ID_TWINVQ, + CODEC_ID_TRUEHD, + CODEC_ID_MP4ALS, + CODEC_ID_ATRAC1, + CODEC_ID_BINKAUDIO_RDFT, + CODEC_ID_BINKAUDIO_DCT, + CODEC_ID_AAC_LATM, + CODEC_ID_QDMC, + CODEC_ID_CELT, +#if LIBAVCODEC_VERSION_MAJOR > 53 + CODEC_ID_G723_1_DEPRECATED, + CODEC_ID_G729_DEPRECATED, + CODEC_ID_8SVX_EXP, + CODEC_ID_8SVX_FIB, +#endif + CODEC_ID_BMV_AUDIO, + CODEC_ID_G729 = 0x15800, + CODEC_ID_G723_1= 0x15801, + CODEC_ID_8SVX_RAW = MKBETAG('8','S','V','X'), + + /* subtitle codecs */ + CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs. + CODEC_ID_DVD_SUBTITLE = 0x17000, + CODEC_ID_DVB_SUBTITLE, + CODEC_ID_TEXT, ///< raw UTF-8 text + CODEC_ID_XSUB, + CODEC_ID_SSA, + CODEC_ID_MOV_TEXT, + CODEC_ID_HDMV_PGS_SUBTITLE, + CODEC_ID_DVB_TELETEXT, + CODEC_ID_SRT, + CODEC_ID_MICRODVD = MKBETAG('m','D','V','D'), + + /* other specific kind of codecs (generally used for attachments) */ + CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs. + CODEC_ID_TTF = 0x18000, + CODEC_ID_BINTEXT = MKBETAG('B','T','X','T'), + CODEC_ID_XBIN = MKBETAG('X','B','I','N'), + CODEC_ID_IDF = MKBETAG( 0 ,'I','D','F'), + + CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it + + CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS + * stream (only used by libavformat) */ + CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems + * stream (only used by libavformat) */ + CODEC_ID_FFMETADATA = 0x21000, ///< Dummy codec for streams containing only metadata information. +}; + +#if FF_API_OLD_SAMPLE_FMT +#define SampleFormat AVSampleFormat + +#define SAMPLE_FMT_NONE AV_SAMPLE_FMT_NONE +#define SAMPLE_FMT_U8 AV_SAMPLE_FMT_U8 +#define SAMPLE_FMT_S16 AV_SAMPLE_FMT_S16 +#define SAMPLE_FMT_S32 AV_SAMPLE_FMT_S32 +#define SAMPLE_FMT_FLT AV_SAMPLE_FMT_FLT +#define SAMPLE_FMT_DBL AV_SAMPLE_FMT_DBL +#define SAMPLE_FMT_NB AV_SAMPLE_FMT_NB +#endif + +#if FF_API_OLD_AUDIOCONVERT +#include "libavutil/audioconvert.h" + +/* Audio channel masks */ +#define CH_FRONT_LEFT AV_CH_FRONT_LEFT +#define CH_FRONT_RIGHT AV_CH_FRONT_RIGHT +#define CH_FRONT_CENTER AV_CH_FRONT_CENTER +#define CH_LOW_FREQUENCY AV_CH_LOW_FREQUENCY +#define CH_BACK_LEFT AV_CH_BACK_LEFT +#define CH_BACK_RIGHT AV_CH_BACK_RIGHT +#define CH_FRONT_LEFT_OF_CENTER AV_CH_FRONT_LEFT_OF_CENTER +#define CH_FRONT_RIGHT_OF_CENTER AV_CH_FRONT_RIGHT_OF_CENTER +#define CH_BACK_CENTER AV_CH_BACK_CENTER +#define CH_SIDE_LEFT AV_CH_SIDE_LEFT +#define CH_SIDE_RIGHT AV_CH_SIDE_RIGHT +#define CH_TOP_CENTER AV_CH_TOP_CENTER +#define CH_TOP_FRONT_LEFT AV_CH_TOP_FRONT_LEFT +#define CH_TOP_FRONT_CENTER AV_CH_TOP_FRONT_CENTER +#define CH_TOP_FRONT_RIGHT AV_CH_TOP_FRONT_RIGHT +#define CH_TOP_BACK_LEFT AV_CH_TOP_BACK_LEFT +#define CH_TOP_BACK_CENTER AV_CH_TOP_BACK_CENTER +#define CH_TOP_BACK_RIGHT AV_CH_TOP_BACK_RIGHT +#define CH_STEREO_LEFT AV_CH_STEREO_LEFT +#define CH_STEREO_RIGHT AV_CH_STEREO_RIGHT + +/** Channel mask value used for AVCodecContext.request_channel_layout + to indicate that the user requests the channel order of the decoder output + to be the native codec channel order. */ +#define CH_LAYOUT_NATIVE AV_CH_LAYOUT_NATIVE + +/* Audio channel convenience macros */ +#define CH_LAYOUT_MONO AV_CH_LAYOUT_MONO +#define CH_LAYOUT_STEREO AV_CH_LAYOUT_STEREO +#define CH_LAYOUT_2_1 AV_CH_LAYOUT_2_1 +#define CH_LAYOUT_SURROUND AV_CH_LAYOUT_SURROUND +#define CH_LAYOUT_4POINT0 AV_CH_LAYOUT_4POINT0 +#define CH_LAYOUT_2_2 AV_CH_LAYOUT_2_2 +#define CH_LAYOUT_QUAD AV_CH_LAYOUT_QUAD +#define CH_LAYOUT_5POINT0 AV_CH_LAYOUT_5POINT0 +#define CH_LAYOUT_5POINT1 AV_CH_LAYOUT_5POINT1 +#define CH_LAYOUT_5POINT0_BACK AV_CH_LAYOUT_5POINT0_BACK +#define CH_LAYOUT_5POINT1_BACK AV_CH_LAYOUT_5POINT1_BACK +#define CH_LAYOUT_7POINT0 AV_CH_LAYOUT_7POINT0 +#define CH_LAYOUT_7POINT1 AV_CH_LAYOUT_7POINT1 +#define CH_LAYOUT_7POINT1_WIDE AV_CH_LAYOUT_7POINT1_WIDE +#define CH_LAYOUT_STEREO_DOWNMIX AV_CH_LAYOUT_STEREO_DOWNMIX +#endif + +/* in bytes */ +#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio + +/** + * Required number of additionally allocated bytes at the end of the input bitstream for decoding. + * This is mainly needed because some optimized bitstream readers read + * 32 or 64 bit at once and could read over the end.
+ * Note: If the first 23 bits of the additional bytes are not 0, then damaged + * MPEG bitstreams could cause overread and segfault. + */ +#define FF_INPUT_BUFFER_PADDING_SIZE 16 + +/** + * minimum encoding buffer size + * Used to avoid some checks during header writing. + */ +#define FF_MIN_BUFFER_SIZE 16384 + + +/** + * motion estimation type. + */ +enum Motion_Est_ID { + ME_ZERO = 1, ///< no search, that is use 0,0 vector whenever one is needed + ME_FULL, + ME_LOG, + ME_PHODS, + ME_EPZS, ///< enhanced predictive zonal search + ME_X1, ///< reserved for experiments + ME_HEX, ///< hexagon based search + ME_UMH, ///< uneven multi-hexagon search + ME_ITER, ///< iterative search + ME_TESA, ///< transformed exhaustive search algorithm +}; + +enum AVDiscard{ + /* We leave some space between them for extensions (drop some + * keyframes for intra-only or drop just some bidir frames). */ + AVDISCARD_NONE =-16, ///< discard nothing + AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi + AVDISCARD_NONREF = 8, ///< discard all non reference + AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames + AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes + AVDISCARD_ALL = 48, ///< discard all +}; + +enum AVColorPrimaries{ + AVCOL_PRI_BT709 =1, ///< also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B + AVCOL_PRI_UNSPECIFIED=2, + AVCOL_PRI_BT470M =4, + AVCOL_PRI_BT470BG =5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM + AVCOL_PRI_SMPTE170M =6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC + AVCOL_PRI_SMPTE240M =7, ///< functionally identical to above + AVCOL_PRI_FILM =8, + AVCOL_PRI_NB , ///< Not part of ABI +}; + +enum AVColorTransferCharacteristic{ + AVCOL_TRC_BT709 =1, ///< also ITU-R BT1361 + AVCOL_TRC_UNSPECIFIED=2, + AVCOL_TRC_GAMMA22 =4, ///< also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM + AVCOL_TRC_GAMMA28 =5, ///< also ITU-R BT470BG + AVCOL_TRC_SMPTE240M =7, + AVCOL_TRC_NB , ///< Not part of ABI +}; + +enum AVColorSpace{ + AVCOL_SPC_RGB =0, + AVCOL_SPC_BT709 =1, ///< also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B + AVCOL_SPC_UNSPECIFIED=2, + AVCOL_SPC_FCC =4, + AVCOL_SPC_BT470BG =5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601 + AVCOL_SPC_SMPTE170M =6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above + AVCOL_SPC_SMPTE240M =7, + AVCOL_SPC_YCGCO =8, + AVCOL_SPC_NB , ///< Not part of ABI +}; + +enum AVColorRange{ + AVCOL_RANGE_UNSPECIFIED=0, + AVCOL_RANGE_MPEG =1, ///< the normal 219*2^(n-8) "MPEG" YUV ranges + AVCOL_RANGE_JPEG =2, ///< the normal 2^n-1 "JPEG" YUV ranges + AVCOL_RANGE_NB , ///< Not part of ABI +}; + +/** + * X X 3 4 X X are luma samples, + * 1 2 1-6 are possible chroma positions + * X X 5 6 X 0 is undefined/unknown position + */ +enum AVChromaLocation{ + AVCHROMA_LOC_UNSPECIFIED=0, + AVCHROMA_LOC_LEFT =1, ///< mpeg2/4, h264 default + AVCHROMA_LOC_CENTER =2, ///< mpeg1, jpeg, h263 + AVCHROMA_LOC_TOPLEFT =3, ///< DV + AVCHROMA_LOC_TOP =4, + AVCHROMA_LOC_BOTTOMLEFT =5, + AVCHROMA_LOC_BOTTOM =6, + AVCHROMA_LOC_NB , ///< Not part of ABI +}; + +#if FF_API_FLAC_GLOBAL_OPTS +/** + * LPC analysis type + */ +enum AVLPCType { + AV_LPC_TYPE_DEFAULT = -1, ///< use the codec default LPC type + AV_LPC_TYPE_NONE = 0, ///< do not use LPC prediction or use all zero coefficients + AV_LPC_TYPE_FIXED = 1, ///< fixed LPC coefficients + AV_LPC_TYPE_LEVINSON = 2, ///< Levinson-Durbin recursion + AV_LPC_TYPE_CHOLESKY = 3, ///< Cholesky factorization + AV_LPC_TYPE_NB , ///< Not part of ABI +}; +#endif + +enum AVAudioServiceType { + AV_AUDIO_SERVICE_TYPE_MAIN = 0, + AV_AUDIO_SERVICE_TYPE_EFFECTS = 1, + AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2, + AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3, + AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4, + AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5, + AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6, + AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7, + AV_AUDIO_SERVICE_TYPE_KARAOKE = 8, + AV_AUDIO_SERVICE_TYPE_NB , ///< Not part of ABI +}; + +typedef struct RcOverride{ + int start_frame; + int end_frame; + int qscale; // If this is 0 then quality_factor will be used instead. + float quality_factor; +} RcOverride; + +#define FF_MAX_B_FRAMES 16 + +/* encoding support + These flags can be passed in AVCodecContext.flags before initialization. + Note: Not everything is supported yet. +*/ + +#define CODEC_FLAG_QSCALE 0x0002 ///< Use fixed qscale. +#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / advanced prediction for H.263. +#define CODEC_FLAG_QPEL 0x0010 ///< Use qpel MC. +#define CODEC_FLAG_GMC 0x0020 ///< Use GMC. +#define CODEC_FLAG_MV0 0x0040 ///< Always try a MB with MV=<0,0>. +/** + * The parent program guarantees that the input for B-frames containing + * streams is not written to for at least s->max_b_frames+1 frames, if + * this is not set the input will be copied. + */ +#define CODEC_FLAG_INPUT_PRESERVED 0x0100 +#define CODEC_FLAG_PASS1 0x0200 ///< Use internal 2pass ratecontrol in first pass mode. +#define CODEC_FLAG_PASS2 0x0400 ///< Use internal 2pass ratecontrol in second pass mode. +#define CODEC_FLAG_GRAY 0x2000 ///< Only decode/encode grayscale. +#define CODEC_FLAG_EMU_EDGE 0x4000 ///< Don't draw edges. +#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding. +#define CODEC_FLAG_TRUNCATED 0x00010000 /** Input bitstream might be truncated at a random + location instead of only at frame boundaries. */ +#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< Normalize adaptive quantization. +#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< Use interlaced DCT. +#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< Force low delay. +#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< Place global headers in extradata instead of every keyframe. +#define CODEC_FLAG_BITEXACT 0x00800000 ///< Use only bitexact stuff (except (I)DCT). +/* Fx : Flag for h263+ extra options */ +#define CODEC_FLAG_AC_PRED 0x01000000 ///< H.263 advanced intra coding / MPEG-4 AC prediction +#define CODEC_FLAG_CBP_RD 0x04000000 ///< Use rate distortion optimization for cbp. +#define CODEC_FLAG_QP_RD 0x08000000 ///< Use rate distortion optimization for qp selectioon. +#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter +#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation +#define CODEC_FLAG_CLOSED_GOP 0x80000000 +#define CODEC_FLAG2_FAST 0x00000001 ///< Allow non spec compliant speedup tricks. +#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< Strictly enforce GOP size. +#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< Skip bitstream encoding. +#define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< Place global headers at every keyframe instead of in extradata. +#define CODEC_FLAG2_SKIP_RD 0x00004000 ///< RD optimal MB level residual skipping +#define CODEC_FLAG2_CHUNKS 0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries. +#define CODEC_FLAG2_SHOW_ALL 0x00400000 ///< Show all frames before the first keyframe +/** + * @defgroup deprecated_flags Deprecated codec flags + * Use corresponding private codec options instead. + * @{ + */ +#if FF_API_MPEGVIDEO_GLOBAL_OPTS +#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC +#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H.263 alternative inter VLC +#define CODEC_FLAG_PART 0x0080 ///< Use data partitioning. +#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< Use alternate scan. +#define CODEC_FLAG_H263P_UMV 0x02000000 ///< unlimited motion vector +#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000 +#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< Will reserve space for SVCD scan offset user data. +#define CODEC_FLAG2_INTRA_VLC 0x00000800 ///< Use MPEG-2 intra VLC table. +#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format. +#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 ///< Use MPEG-2 nonlinear quantizer. +#endif +#if FF_API_MJPEG_GLOBAL_OPTS +#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< Use external Huffman table (for MJPEG). +#endif +#if FF_API_X264_GLOBAL_OPTS +#define CODEC_FLAG2_BPYRAMID 0x00000010 ///< H.264 allow B-frames to be used as references. +#define CODEC_FLAG2_WPRED 0x00000020 ///< H.264 weighted biprediction for B-frames +#define CODEC_FLAG2_MIXED_REFS 0x00000040 ///< H.264 one reference per partition, as opposed to one reference per macroblock +#define CODEC_FLAG2_8X8DCT 0x00000080 ///< H.264 high profile 8x8 transform +#define CODEC_FLAG2_FASTPSKIP 0x00000100 ///< H.264 fast pskip +#define CODEC_FLAG2_AUD 0x00000200 ///< H.264 access unit delimiters +#define CODEC_FLAG2_BRDO 0x00000400 ///< B-frame rate-distortion optimization +#define CODEC_FLAG2_MBTREE 0x00040000 ///< Use macroblock tree ratecontrol (x264 only) +#define CODEC_FLAG2_PSY 0x00080000 ///< Use psycho visual optimizations. +#define CODEC_FLAG2_SSIM 0x00100000 ///< Compute SSIM during encoding, error[] values are undefined. +#define CODEC_FLAG2_INTRA_REFRESH 0x00200000 ///< Use periodic insertion of intra blocks instead of keyframes. +#endif +#if FF_API_SNOW_GLOBAL_OPTS +#define CODEC_FLAG2_MEMC_ONLY 0x00001000 ///< Only do ME/MC (I frames -> ref, P frame -> ME+MC). +#endif +#if FF_API_LAME_GLOBAL_OPTS +#define CODEC_FLAG2_BIT_RESERVOIR 0x00020000 ///< Use a bit reservoir when encoding if possible +#endif +/** + * @} + */ + +/* Unsupported options : + * Syntax Arithmetic coding (SAC) + * Reference Picture Selection + * Independent Segment Decoding */ +/* /Fx */ +/* codec capabilities */ + +#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< Decoder can use draw_horiz_band callback. +/** + * Codec uses get_buffer() for allocating buffers and supports custom allocators. + * If not set, it might not use get_buffer() at all or use operations that + * assume the buffer was allocated by avcodec_default_get_buffer. + */ +#define CODEC_CAP_DR1 0x0002 +#if FF_API_PARSE_FRAME +/* If 'parse_only' field is true, then avcodec_parse_frame() can be used. */ +#define CODEC_CAP_PARSE_ONLY 0x0004 +#endif +#define CODEC_CAP_TRUNCATED 0x0008 +/* Codec can export data for HW decoding (XvMC). */ +#define CODEC_CAP_HWACCEL 0x0010 +/** + * Codec has a nonzero delay and needs to be fed with avpkt->data=NULL, + * avpkt->size=0 at the end to get the delayed data until the decoder no longer + * returns frames. If this is not set, the codec is guaranteed to never be fed + * with NULL data. + */ +#define CODEC_CAP_DELAY 0x0020 +/** + * Codec can be fed a final frame with a smaller size. + * This can be used to prevent truncation of the last audio samples. + */ +#define CODEC_CAP_SMALL_LAST_FRAME 0x0040 +/** + * Codec can export data for HW decoding (VDPAU). + */ +#define CODEC_CAP_HWACCEL_VDPAU 0x0080 +/** + * Codec can output multiple frames per AVPacket + * Normally demuxers return one frame at a time, demuxers which do not do + * are connected to a parser to split what they return into proper frames. + * This flag is reserved to the very rare category of codecs which have a + * bitstream that cannot be split into frames without timeconsuming + * operations like full decoding. Demuxers carring such bitstreams thus + * may return multiple frames in a packet. This has many disadvantages like + * prohibiting stream copy in many cases thus it should only be considered + * as a last resort. + */ +#define CODEC_CAP_SUBFRAMES 0x0100 +/** + * Codec is experimental and is thus avoided in favor of non experimental + * encoders + */ +#define CODEC_CAP_EXPERIMENTAL 0x0200 +/** + * Codec should fill in channel configuration and samplerate instead of container + */ +#define CODEC_CAP_CHANNEL_CONF 0x0400 + +/** + * Codec is able to deal with negative linesizes + */ +#define CODEC_CAP_NEG_LINESIZES 0x0800 + +/** + * Codec supports frame-level multithreading. + */ +#define CODEC_CAP_FRAME_THREADS 0x1000 +/** + * Codec supports slice-based (or partition-based) multithreading. + */ +#define CODEC_CAP_SLICE_THREADS 0x2000 +/** + * Codec is lossless. + */ +#define CODEC_CAP_LOSSLESS 0x80000000 + +//The following defines may change, don't expect compatibility if you use them. +#define MB_TYPE_INTRA4x4 0x0001 +#define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific +#define MB_TYPE_INTRA_PCM 0x0004 //FIXME H.264-specific +#define MB_TYPE_16x16 0x0008 +#define MB_TYPE_16x8 0x0010 +#define MB_TYPE_8x16 0x0020 +#define MB_TYPE_8x8 0x0040 +#define MB_TYPE_INTERLACED 0x0080 +#define MB_TYPE_DIRECT2 0x0100 //FIXME +#define MB_TYPE_ACPRED 0x0200 +#define MB_TYPE_GMC 0x0400 +#define MB_TYPE_SKIP 0x0800 +#define MB_TYPE_P0L0 0x1000 +#define MB_TYPE_P1L0 0x2000 +#define MB_TYPE_P0L1 0x4000 +#define MB_TYPE_P1L1 0x8000 +#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0) +#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1) +#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1) +#define MB_TYPE_QUANT 0x00010000 +#define MB_TYPE_CBP 0x00020000 +//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...) + +/** + * Pan Scan area. + * This specifies the area which should be displayed. + * Note there may be multiple such areas for one frame. + */ +typedef struct AVPanScan{ + /** + * id + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + int id; + + /** + * width and height in 1/16 pel + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + int width; + int height; + + /** + * position of the top left corner in 1/16 pel for up to 3 fields/frames + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + int16_t position[3][2]; +}AVPanScan; + +#define FF_QSCALE_TYPE_MPEG1 0 +#define FF_QSCALE_TYPE_MPEG2 1 +#define FF_QSCALE_TYPE_H264 2 +#define FF_QSCALE_TYPE_VP56 3 + +#define FF_BUFFER_TYPE_INTERNAL 1 +#define FF_BUFFER_TYPE_USER 2 ///< direct rendering buffers (image is (de)allocated by user) +#define FF_BUFFER_TYPE_SHARED 4 ///< Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared. +#define FF_BUFFER_TYPE_COPY 8 ///< Just a (modified) copy of some other buffer, don't deallocate anything. + +#if FF_API_OLD_FF_PICT_TYPES +/* DEPRECATED, directly use the AV_PICTURE_TYPE_* enum values */ +#define FF_I_TYPE AV_PICTURE_TYPE_I ///< Intra +#define FF_P_TYPE AV_PICTURE_TYPE_P ///< Predicted +#define FF_B_TYPE AV_PICTURE_TYPE_B ///< Bi-dir predicted +#define FF_S_TYPE AV_PICTURE_TYPE_S ///< S(GMC)-VOP MPEG4 +#define FF_SI_TYPE AV_PICTURE_TYPE_SI ///< Switching Intra +#define FF_SP_TYPE AV_PICTURE_TYPE_SP ///< Switching Predicted +#define FF_BI_TYPE AV_PICTURE_TYPE_BI +#endif + +#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore). +#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer. +#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content. +#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update). + +enum AVPacketSideDataType { + AV_PKT_DATA_PALETTE, +}; + +typedef struct AVPacket { + /** + * Presentation timestamp in AVStream->time_base units; the time at which + * the decompressed packet will be presented to the user. + * Can be AV_NOPTS_VALUE if it is not stored in the file. + * pts MUST be larger or equal to dts as presentation cannot happen before + * decompression, unless one wants to view hex dumps. Some formats misuse + * the terms dts and pts/cts to mean something different. Such timestamps + * must be converted to true pts/dts before they are stored in AVPacket. + */ + int64_t pts; + /** + * Decompression timestamp in AVStream->time_base units; the time at which + * the packet is decompressed. + * Can be AV_NOPTS_VALUE if it is not stored in the file. + */ + int64_t dts; + uint8_t *data; + int size; + int stream_index; + /** + * A combination of AV_PKT_FLAG values + */ + int flags; + /** + * Additional packet data that can be provided by the container. + * Packet can contain several types of side information. + */ + struct { + uint8_t *data; + int size; + enum AVPacketSideDataType type; + } *side_data; + int side_data_elems; + + /** + * Duration of this packet in AVStream->time_base units, 0 if unknown. + * Equals next_pts - this_pts in presentation order. + */ + int duration; + void (*destruct)(struct AVPacket *); + void *priv; + int64_t pos; ///< byte position in stream, -1 if unknown + + /** + * Time difference in AVStream->time_base units from the pts of this + * packet to the point at which the output from the decoder has converged + * independent from the availability of previous frames. That is, the + * frames are virtually identical no matter if decoding started from + * the very first frame or from this keyframe. + * Is AV_NOPTS_VALUE if unknown. + * This field is not the display duration of the current packet. + * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY + * set. + * + * The purpose of this field is to allow seeking in streams that have no + * keyframes in the conventional sense. It corresponds to the + * recovery point SEI in H.264 and match_time_delta in NUT. It is also + * essential for some types of subtitle streams to ensure that all + * subtitles are correctly displayed after seeking. + */ + int64_t convergence_duration; +} AVPacket; +#define AV_PKT_FLAG_KEY 0x0001 ///< The packet contains a keyframe +#define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted + +/** + * Audio Video Frame. + * New fields can be added to the end of AVFRAME with minor version + * bumps. Removal, reordering and changes to existing fields require + * a major version bump. + * sizeof(AVFrame) must not be used outside libav*. + */ +typedef struct AVFrame { + /** + * pointer to the picture planes. + * This might be different from the first allocated byte + * - encoding: + * - decoding: + */ + uint8_t *data[4]; + int linesize[4]; + /** + * pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer. + * This isn't used by libavcodec unless the default get/release_buffer() is used. + * - encoding: + * - decoding: + */ + uint8_t *base[4]; + /** + * 1 -> keyframe, 0-> not + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + */ + int key_frame; + + /** + * Picture type of the frame, see ?_TYPE below. + * - encoding: Set by libavcodec. for coded_picture (and set by user for input). + * - decoding: Set by libavcodec. + */ + enum AVPictureType pict_type; + + /** + * presentation timestamp in time_base units (time when frame should be shown to user) + * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed. + * - encoding: MUST be set by user. + * - decoding: Set by libavcodec. + */ + int64_t pts; + + /** + * picture number in bitstream order + * - encoding: set by + * - decoding: Set by libavcodec. + */ + int coded_picture_number; + /** + * picture number in display order + * - encoding: set by + * - decoding: Set by libavcodec. + */ + int display_picture_number; + + /** + * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) + * - encoding: Set by libavcodec. for coded_picture (and set by user for input). + * - decoding: Set by libavcodec. + */ + int quality; + + /** + * buffer age (1->was last buffer and dint change, 2->..., ...). + * Set to INT_MAX if the buffer has not been used yet. + * - encoding: unused + * - decoding: MUST be set by get_buffer(). + */ + int age; + + /** + * is this picture used as reference + * The values for this are the same as the MpegEncContext.picture_structure + * variable, that is 1->top field, 2->bottom field, 3->frame/both fields. + * Set to 4 for delayed, non-reference frames. + * - encoding: unused + * - decoding: Set by libavcodec. (before get_buffer() call)). + */ + int reference; + + /** + * QP table + * - encoding: unused + * - decoding: Set by libavcodec. + */ + int8_t *qscale_table; + /** + * QP store stride + * - encoding: unused + * - decoding: Set by libavcodec. + */ + int qstride; + + /** + * mbskip_table[mb]>=1 if MB didn't change + * stride= mb_width = (width+15)>>4 + * - encoding: unused + * - decoding: Set by libavcodec. + */ + uint8_t *mbskip_table; + + /** + * motion vector table + * @code + * example: + * int mv_sample_log2= 4 - motion_subsample_log2; + * int mb_width= (width+15)>>4; + * int mv_stride= (mb_width << mv_sample_log2) + 1; + * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y]; + * @endcode + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + int16_t (*motion_val[2])[2]; + + /** + * macroblock type table + * mb_type_base + mb_width + 2 + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + uint32_t *mb_type; + + /** + * log2 of the size of the block which a single vector in motion_val represents: + * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2) + * - encoding: unused + * - decoding: Set by libavcodec. + */ + uint8_t motion_subsample_log2; + + /** + * for some private data of the user + * - encoding: unused + * - decoding: Set by user. + */ + void *opaque; + + /** + * error + * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR. + * - decoding: unused + */ + uint64_t error[4]; + + /** + * type of the buffer (to keep track of who has to deallocate data[*]) + * - encoding: Set by the one who allocates it. + * - decoding: Set by the one who allocates it. + * Note: User allocated (direct rendering) & internal buffers cannot coexist currently. + */ + int type; + + /** + * When decoding, this signals how much the picture must be delayed. + * extra_delay = repeat_pict / (2*fps) + * - encoding: unused + * - decoding: Set by libavcodec. + */ + int repeat_pict; + + /** + * + */ + int qscale_type; + + /** + * The content of the picture is interlaced. + * - encoding: Set by user. + * - decoding: Set by libavcodec. (default 0) + */ + int interlaced_frame; + + /** + * If the content is interlaced, is top field displayed first. + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + int top_field_first; + + /** + * Pan scan. + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + AVPanScan *pan_scan; + + /** + * Tell user application that palette has changed from previous frame. + * - encoding: ??? (no palette-enabled encoder yet) + * - decoding: Set by libavcodec. (default 0). + */ + int palette_has_changed; + + /** + * codec suggestion on buffer type if != 0 + * - encoding: unused + * - decoding: Set by libavcodec. (before get_buffer() call)). + */ + int buffer_hints; + + /** + * DCT coefficients + * - encoding: unused + * - decoding: Set by libavcodec. + */ + short *dct_coeff; + + /** + * motion reference frame index + * the order in which these are stored can depend on the codec. + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + int8_t *ref_index[2]; + + /** + * reordered opaque 64bit (generally an integer or a double precision float + * PTS but can be anything). + * The user sets AVCodecContext.reordered_opaque to represent the input at + * that time, + * the decoder reorders values as needed and sets AVFrame.reordered_opaque + * to exactly one of the values provided by the user through AVCodecContext.reordered_opaque + * @deprecated in favor of pkt_pts + * - encoding: unused + * - decoding: Read by user. + */ + int64_t reordered_opaque; + + /** + * hardware accelerator private data (FFmpeg-allocated) + * - encoding: unused + * - decoding: Set by libavcodec + */ + void *hwaccel_picture_private; + + /** + * reordered pts from the last AVPacket that has been input into the decoder + * - encoding: unused + * - decoding: Read by user. + */ + int64_t pkt_pts; + + /** + * dts from the last AVPacket that has been input into the decoder + * - encoding: unused + * - decoding: Read by user. + */ + int64_t pkt_dts; + + /** + * the AVCodecContext which ff_thread_get_buffer() was last called on + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + */ + struct AVCodecContext *owner; + + /** + * used by multithreading to store frame-specific info + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + */ + void *thread_opaque; + + /** + * frame timestamp estimated using various heuristics, in stream time base + * - encoding: unused + * - decoding: set by libavcodec, read by user. + */ + int64_t best_effort_timestamp; + + /** + * reordered pos from the last AVPacket that has been input into the decoder + * - encoding: unused + * - decoding: Read by user. + */ + int64_t pkt_pos; + + /** + * reordered sample aspect ratio for the video frame, 0/1 if unknown\unspecified + * - encoding: unused + * - decoding: Read by user. + */ + AVRational sample_aspect_ratio; + + /** + * width and height of the video frame + * - encoding: unused + * - decoding: Read by user. + */ + int width, height; + + /** + * format of the frame, -1 if unknown or unset + * It should be cast to the corresponding enum (enum PixelFormat + * for video, enum AVSampleFormat for audio) + * - encoding: unused + * - decoding: Read by user. + */ + int format; + +} AVFrame; + +struct AVCodecInternal; + +/** + * main external API structure. + * New fields can be added to the end with minor version bumps. + * Removal, reordering and changes to existing fields require a major + * version bump. + * Please use AVOptions (av_opt* / av_set/get*()) to access these fields from user + * applications. + * sizeof(AVCodecContext) must not be used outside libav*. + */ +typedef struct AVCodecContext { + /** + * information on struct for av_log + * - set by avcodec_alloc_context + */ + const AVClass *av_class; + /** + * the average bitrate + * - encoding: Set by user; unused for constant quantizer encoding. + * - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream. + */ + int bit_rate; + + /** + * number of bits the bitstream is allowed to diverge from the reference. + * the reference can be CBR (for CBR pass1) or VBR (for pass2) + * - encoding: Set by user; unused for constant quantizer encoding. + * - decoding: unused + */ + int bit_rate_tolerance; + + /** + * CODEC_FLAG_*. + * - encoding: Set by user. + * - decoding: Set by user. + */ + int flags; + + /** + * Some codecs need additional format info. It is stored here. + * If any muxer uses this then ALL demuxers/parsers AND encoders for the + * specific codec MUST set it correctly otherwise stream copy breaks. + * In general use of this field by muxers is not recommanded. + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. (FIXME: Is this OK?) + */ + int sub_id; + + /** + * Motion estimation algorithm used for video coding. + * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex), + * 8 (umh), 9 (iter), 10 (tesa) [7, 8, 10 are x264 specific, 9 is snow specific] + * - encoding: MUST be set by user. + * - decoding: unused + */ + int me_method; + + /** + * some codecs need / can use extradata like Huffman tables. + * mjpeg: Huffman tables + * rv10: additional flags + * mpeg4: global headers (they can be in the bitstream or here) + * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger + * than extradata_size to avoid prolems if it is read with the bitstream reader. + * The bytewise contents of extradata must not depend on the architecture or CPU endianness. + * - encoding: Set/allocated/freed by libavcodec. + * - decoding: Set/allocated/freed by user. + */ + uint8_t *extradata; + int extradata_size; + + /** + * This is the fundamental unit of time (in seconds) in terms + * of which frame timestamps are represented. For fixed-fps content, + * timebase should be 1/framerate and timestamp increments should be + * identically 1. + * - encoding: MUST be set by user. + * - decoding: Set by libavcodec. + */ + AVRational time_base; + + /* video only */ + /** + * picture width / height. + * - encoding: MUST be set by user. + * - decoding: Set by libavcodec. + * Note: For compatibility it is possible to set this instead of + * coded_width/height before decoding. + */ + int width, height; + +#define FF_ASPECT_EXTENDED 15 + + /** + * the number of pictures in a group of pictures, or 0 for intra_only + * - encoding: Set by user. + * - decoding: unused + */ + int gop_size; + + /** + * Pixel format, see PIX_FMT_xxx. + * May be set by the demuxer if known from headers. + * May be overriden by the decoder if it knows better. + * - encoding: Set by user. + * - decoding: Set by user if known, overridden by libavcodec if known + */ + enum PixelFormat pix_fmt; + + /** + * If non NULL, 'draw_horiz_band' is called by the libavcodec + * decoder to draw a horizontal band. It improves cache usage. Not + * all codecs can do that. You must check the codec capabilities + * beforehand. + * When multithreading is used, it may be called from multiple threads + * at the same time; threads might draw different parts of the same AVFrame, + * or multiple AVFrames, and there is no guarantee that slices will be drawn + * in order. + * The function is also used by hardware acceleration APIs. + * It is called at least once during frame decoding to pass + * the data needed for hardware render. + * In that mode instead of pixel data, AVFrame points to + * a structure specific to the acceleration API. The application + * reads the structure and can change some fields to indicate progress + * or mark state. + * - encoding: unused + * - decoding: Set by user. + * @param height the height of the slice + * @param y the y position of the slice + * @param type 1->top field, 2->bottom field, 3->frame + * @param offset offset into the AVFrame.data from which the slice should be read + */ + void (*draw_horiz_band)(struct AVCodecContext *s, + const AVFrame *src, int offset[4], + int y, int type, int height); + + /* audio only */ + int sample_rate; ///< samples per second + int channels; ///< number of audio channels + + /** + * audio sample format + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + enum AVSampleFormat sample_fmt; ///< sample format + + /* The following data should not be initialized. */ + /** + * Samples per packet, initialized when calling 'init'. + */ + int frame_size; + int frame_number; ///< audio or video frame number + + /** + * Encoding: Number of frames delay there will be from the encoder input to + * the decoder output. (we assume the decoder matches the spec) + * Decoding: Number of frames delay in addition to what a standard decoder + * as specified in the spec would produce. + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + */ + int delay; + + /* - encoding parameters */ + float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0) + float qblur; ///< amount of qscale smoothing over time (0.0-1.0) + + /** + * minimum quantizer + * - encoding: Set by user. + * - decoding: unused + */ + int qmin; + + /** + * maximum quantizer + * - encoding: Set by user. + * - decoding: unused + */ + int qmax; + + /** + * maximum quantizer difference between frames + * - encoding: Set by user. + * - decoding: unused + */ + int max_qdiff; + + /** + * maximum number of B-frames between non-B-frames + * Note: The output will be delayed by max_b_frames+1 relative to the input. + * - encoding: Set by user. + * - decoding: unused + */ + int max_b_frames; + + /** + * qscale factor between IP and B-frames + * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset). + * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). + * - encoding: Set by user. + * - decoding: unused + */ + float b_quant_factor; + + /** obsolete FIXME remove */ + int rc_strategy; +#define FF_RC_STRATEGY_XVID 1 + + int b_frame_strategy; + + struct AVCodec *codec; + + void *priv_data; + + int rtp_payload_size; /* The size of the RTP payload: the coder will */ + /* do its best to deliver a chunk with size */ + /* below rtp_payload_size, the chunk will start */ + /* with a start code on some codecs like H.263. */ + /* This doesn't take account of any particular */ + /* headers inside the transmitted RTP payload. */ + + + /* The RTP callback: This function is called */ + /* every time the encoder has a packet to send. */ + /* It depends on the encoder if the data starts */ + /* with a Start Code (it should). H.263 does. */ + /* mb_nb contains the number of macroblocks */ + /* encoded in the RTP payload. */ + void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb); + + /* statistics, used for 2-pass encoding */ + int mv_bits; + int header_bits; + int i_tex_bits; + int p_tex_bits; + int i_count; + int p_count; + int skip_count; + int misc_bits; + + /** + * number of bits used for the previously encoded frame + * - encoding: Set by libavcodec. + * - decoding: unused + */ + int frame_bits; + + /** + * Private data of the user, can be used to carry app specific stuff. + * - encoding: Set by user. + * - decoding: Set by user. + */ + void *opaque; + + char codec_name[32]; + enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */ + enum CodecID codec_id; /* see CODEC_ID_xxx */ + + /** + * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). + * This is used to work around some encoder bugs. + * A demuxer should set this to what is stored in the field used to identify the codec. + * If there are multiple such fields in a container then the demuxer should choose the one + * which maximizes the information about the used codec. + * If the codec tag field in a container is larger than 32 bits then the demuxer should + * remap the longer ID to 32 bits with a table or other structure. Alternatively a new + * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated + * first. + * - encoding: Set by user, if not then the default based on codec_id will be used. + * - decoding: Set by user, will be converted to uppercase by libavcodec during init. + */ + unsigned int codec_tag; + + /** + * Work around bugs in encoders which sometimes cannot be detected automatically. + * - encoding: Set by user + * - decoding: Set by user + */ + int workaround_bugs; +#define FF_BUG_AUTODETECT 1 ///< autodetection +#define FF_BUG_OLD_MSMPEG4 2 +#define FF_BUG_XVID_ILACE 4 +#define FF_BUG_UMP4 8 +#define FF_BUG_NO_PADDING 16 +#define FF_BUG_AMV 32 +#define FF_BUG_AC_VLC 0 ///< Will be removed, libavcodec can now handle these non-compliant files by default. +#define FF_BUG_QPEL_CHROMA 64 +#define FF_BUG_STD_QPEL 128 +#define FF_BUG_QPEL_CHROMA2 256 +#define FF_BUG_DIRECT_BLOCKSIZE 512 +#define FF_BUG_EDGE 1024 +#define FF_BUG_HPEL_CHROMA 2048 +#define FF_BUG_DC_CLIP 4096 +#define FF_BUG_MS 8192 ///< Work around various bugs in Microsoft's broken decoders. +#define FF_BUG_TRUNCATED 16384 +//#define FF_BUG_FAKE_SCALABILITY 16 //Autodetection should work 100%. + + /** + * luma single coefficient elimination threshold + * - encoding: Set by user. + * - decoding: unused + */ + int luma_elim_threshold; + + /** + * chroma single coeff elimination threshold + * - encoding: Set by user. + * - decoding: unused + */ + int chroma_elim_threshold; + + /** + * strictly follow the standard (MPEG4, ...). + * - encoding: Set by user. + * - decoding: Set by user. + * Setting this to STRICT or higher means the encoder and decoder will + * generally do stupid things, whereas setting it to unofficial or lower + * will mean the encoder might produce output that is not supported by all + * spec-compliant decoders. Decoders don't differentiate between normal, + * unofficial and experimental (that is, they always try to decode things + * when they can) unless they are explicitly asked to behave stupidly + * (=strictly conform to the specs) + */ + int strict_std_compliance; +#define FF_COMPLIANCE_VERY_STRICT 2 ///< Strictly conform to an older more strict version of the spec or reference software. +#define FF_COMPLIANCE_STRICT 1 ///< Strictly conform to all the things in the spec no matter what consequences. +#define FF_COMPLIANCE_NORMAL 0 +#define FF_COMPLIANCE_UNOFFICIAL -1 ///< Allow unofficial extensions +#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things. + + /** + * qscale offset between IP and B-frames + * - encoding: Set by user. + * - decoding: unused + */ + float b_quant_offset; + +#if FF_API_ER + /** + * Error recognition; higher values will detect more errors but may + * misdetect some more or less valid parts as errors. + * - encoding: unused + * - decoding: Set by user. + */ + attribute_deprecated int error_recognition; +#define FF_ER_CAREFUL 1 +#define FF_ER_COMPLIANT 2 +#define FF_ER_AGGRESSIVE 3 +#define FF_ER_VERY_AGGRESSIVE 4 +#define FF_ER_EXPLODE 5 +#endif /* FF_API_ER */ + + /** + * Called at the beginning of each frame to get a buffer for it. + * If pic.reference is set then the frame will be read later by libavcodec. + * avcodec_align_dimensions2() should be used to find the required width and + * height, as they normally need to be rounded up to the next multiple of 16. + * if CODEC_CAP_DR1 is not set then get_buffer() must call + * avcodec_default_get_buffer() instead of providing buffers allocated by + * some other means. + * If frame multithreading is used and thread_safe_callbacks is set, + * it may be called from a different thread, but not from more than one at once. + * Does not need to be reentrant. + * - encoding: unused + * - decoding: Set by libavcodec, user can override. + */ + int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic); + + /** + * Called to release buffers which were allocated with get_buffer. + * A released buffer can be reused in get_buffer(). + * pic.data[*] must be set to NULL. + * May be called from a different thread if frame multithreading is used, + * but not by more than one thread at once, so does not need to be reentrant. + * - encoding: unused + * - decoding: Set by libavcodec, user can override. + */ + void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic); + + /** + * Size of the frame reordering buffer in the decoder. + * For MPEG-2 it is 1 IPB or 0 low delay IP. + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + */ + int has_b_frames; + + /** + * number of bytes per packet if constant and known or 0 + * Used by some WAV based audio codecs. + */ + int block_align; + +#if FF_API_PARSE_FRAME + /** + * If true, only parsing is done. The frame data is returned. + * Only MPEG audio decoders support this now. + * - encoding: unused + * - decoding: Set by user + */ + attribute_deprecated int parse_only; +#endif + + /** + * 0-> h263 quant 1-> mpeg quant + * - encoding: Set by user. + * - decoding: unused + */ + int mpeg_quant; + + /** + * pass1 encoding statistics output buffer + * - encoding: Set by libavcodec. + * - decoding: unused + */ + char *stats_out; + + /** + * pass2 encoding statistics input buffer + * Concatenated stuff from stats_out of pass1 should be placed here. + * - encoding: Allocated/set/freed by user. + * - decoding: unused + */ + char *stats_in; + + /** + * ratecontrol qmin qmax limiting method + * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax. + * - encoding: Set by user. + * - decoding: unused + */ + float rc_qsquish; + + float rc_qmod_amp; + int rc_qmod_freq; + + /** + * ratecontrol override, see RcOverride + * - encoding: Allocated/set/freed by user. + * - decoding: unused + */ + RcOverride *rc_override; + int rc_override_count; + + /** + * rate control equation + * - encoding: Set by user + * - decoding: unused + */ + const char *rc_eq; + + /** + * maximum bitrate + * - encoding: Set by user. + * - decoding: unused + */ + int rc_max_rate; + + /** + * minimum bitrate + * - encoding: Set by user. + * - decoding: unused + */ + int rc_min_rate; + + /** + * decoder bitstream buffer size + * - encoding: Set by user. + * - decoding: unused + */ + int rc_buffer_size; + float rc_buffer_aggressivity; + + /** + * qscale factor between P and I-frames + * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset). + * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). + * - encoding: Set by user. + * - decoding: unused + */ + float i_quant_factor; + + /** + * qscale offset between P and I-frames + * - encoding: Set by user. + * - decoding: unused + */ + float i_quant_offset; + + /** + * initial complexity for pass1 ratecontrol + * - encoding: Set by user. + * - decoding: unused + */ + float rc_initial_cplx; + + /** + * DCT algorithm, see FF_DCT_* below + * - encoding: Set by user. + * - decoding: unused + */ + int dct_algo; +#define FF_DCT_AUTO 0 +#define FF_DCT_FASTINT 1 +#define FF_DCT_INT 2 +#define FF_DCT_MMX 3 +#define FF_DCT_MLIB 4 +#define FF_DCT_ALTIVEC 5 +#define FF_DCT_FAAN 6 + + /** + * luminance masking (0-> disabled) + * - encoding: Set by user. + * - decoding: unused + */ + float lumi_masking; + + /** + * temporary complexity masking (0-> disabled) + * - encoding: Set by user. + * - decoding: unused + */ + float temporal_cplx_masking; + + /** + * spatial complexity masking (0-> disabled) + * - encoding: Set by user. + * - decoding: unused + */ + float spatial_cplx_masking; + + /** + * p block masking (0-> disabled) + * - encoding: Set by user. + * - decoding: unused + */ + float p_masking; + + /** + * darkness masking (0-> disabled) + * - encoding: Set by user. + * - decoding: unused + */ + float dark_masking; + + /** + * IDCT algorithm, see FF_IDCT_* below. + * - encoding: Set by user. + * - decoding: Set by user. + */ + int idct_algo; +#define FF_IDCT_AUTO 0 +#define FF_IDCT_INT 1 +#define FF_IDCT_SIMPLE 2 +#define FF_IDCT_SIMPLEMMX 3 +#define FF_IDCT_LIBMPEG2MMX 4 +#define FF_IDCT_PS2 5 +#define FF_IDCT_MLIB 6 +#define FF_IDCT_ARM 7 +#define FF_IDCT_ALTIVEC 8 +#define FF_IDCT_SH4 9 +#define FF_IDCT_SIMPLEARM 10 +#define FF_IDCT_H264 11 +#define FF_IDCT_VP3 12 +#define FF_IDCT_IPP 13 +#define FF_IDCT_XVIDMMX 14 +#define FF_IDCT_CAVS 15 +#define FF_IDCT_SIMPLEARMV5TE 16 +#define FF_IDCT_SIMPLEARMV6 17 +#define FF_IDCT_SIMPLEVIS 18 +#define FF_IDCT_WMV2 19 +#define FF_IDCT_FAAN 20 +#define FF_IDCT_EA 21 +#define FF_IDCT_SIMPLENEON 22 +#define FF_IDCT_SIMPLEALPHA 23 +#define FF_IDCT_BINK 24 + + /** + * slice count + * - encoding: Set by libavcodec. + * - decoding: Set by user (or 0). + */ + int slice_count; + /** + * slice offsets in the frame in bytes + * - encoding: Set/allocated by libavcodec. + * - decoding: Set/allocated by user (or NULL). + */ + int *slice_offset; + + /** + * error concealment flags + * - encoding: unused + * - decoding: Set by user. + */ + int error_concealment; +#define FF_EC_GUESS_MVS 1 +#define FF_EC_DEBLOCK 2 + + /** + * dsp_mask could be add used to disable unwanted CPU features + * CPU features (i.e. MMX, SSE. ...) + * + * With the FORCE flag you may instead enable given CPU features. + * (Dangerous: Usable in case of misdetection, improper usage however will + * result into program crash.) + */ + unsigned dsp_mask; + + /** + * bits per sample/pixel from the demuxer (needed for huffyuv). + * - encoding: Set by libavcodec. + * - decoding: Set by user. + */ + int bits_per_coded_sample; + + /** + * prediction method (needed for huffyuv) + * - encoding: Set by user. + * - decoding: unused + */ + int prediction_method; +#define FF_PRED_LEFT 0 +#define FF_PRED_PLANE 1 +#define FF_PRED_MEDIAN 2 + + /** + * sample aspect ratio (0 if unknown) + * That is the width of a pixel divided by the height of the pixel. + * Numerator and denominator must be relatively prime and smaller than 256 for some video standards. + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + AVRational sample_aspect_ratio; + + /** + * the picture in the bitstream + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + */ + AVFrame *coded_frame; + + /** + * debug + * - encoding: Set by user. + * - decoding: Set by user. + */ + int debug; +#define FF_DEBUG_PICT_INFO 1 +#define FF_DEBUG_RC 2 +#define FF_DEBUG_BITSTREAM 4 +#define FF_DEBUG_MB_TYPE 8 +#define FF_DEBUG_QP 16 +#define FF_DEBUG_MV 32 +#define FF_DEBUG_DCT_COEFF 0x00000040 +#define FF_DEBUG_SKIP 0x00000080 +#define FF_DEBUG_STARTCODE 0x00000100 +#define FF_DEBUG_PTS 0x00000200 +#define FF_DEBUG_ER 0x00000400 +#define FF_DEBUG_MMCO 0x00000800 +#define FF_DEBUG_BUGS 0x00001000 +#define FF_DEBUG_VIS_QP 0x00002000 +#define FF_DEBUG_VIS_MB_TYPE 0x00004000 +#define FF_DEBUG_BUFFERS 0x00008000 +#define FF_DEBUG_THREADS 0x00010000 + + /** + * debug + * - encoding: Set by user. + * - decoding: Set by user. + */ + int debug_mv; +#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames +#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames +#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames + + /** + * error + * - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR. + * - decoding: unused + */ + uint64_t error[4]; + + /** + * motion estimation comparison function + * - encoding: Set by user. + * - decoding: unused + */ + int me_cmp; + /** + * subpixel motion estimation comparison function + * - encoding: Set by user. + * - decoding: unused + */ + int me_sub_cmp; + /** + * macroblock comparison function (not supported yet) + * - encoding: Set by user. + * - decoding: unused + */ + int mb_cmp; + /** + * interlaced DCT comparison function + * - encoding: Set by user. + * - decoding: unused + */ + int ildct_cmp; +#define FF_CMP_SAD 0 +#define FF_CMP_SSE 1 +#define FF_CMP_SATD 2 +#define FF_CMP_DCT 3 +#define FF_CMP_PSNR 4 +#define FF_CMP_BIT 5 +#define FF_CMP_RD 6 +#define FF_CMP_ZERO 7 +#define FF_CMP_VSAD 8 +#define FF_CMP_VSSE 9 +#define FF_CMP_NSSE 10 +#define FF_CMP_W53 11 +#define FF_CMP_W97 12 +#define FF_CMP_DCTMAX 13 +#define FF_CMP_DCT264 14 +#define FF_CMP_CHROMA 256 + + /** + * ME diamond size & shape + * - encoding: Set by user. + * - decoding: unused + */ + int dia_size; + + /** + * amount of previous MV predictors (2a+1 x 2a+1 square) + * - encoding: Set by user. + * - decoding: unused + */ + int last_predictor_count; + + /** + * prepass for motion estimation + * - encoding: Set by user. + * - decoding: unused + */ + int pre_me; + + /** + * motion estimation prepass comparison function + * - encoding: Set by user. + * - decoding: unused + */ + int me_pre_cmp; + + /** + * ME prepass diamond size & shape + * - encoding: Set by user. + * - decoding: unused + */ + int pre_dia_size; + + /** + * subpel ME quality + * - encoding: Set by user. + * - decoding: unused + */ + int me_subpel_quality; + + /** + * callback to negotiate the pixelFormat + * @param fmt is the list of formats which are supported by the codec, + * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality. + * The first is always the native one. + * @return the chosen format + * - encoding: unused + * - decoding: Set by user, if not set the native format will be chosen. + */ + enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt); + + /** + * DTG active format information (additional aspect ratio + * information only used in DVB MPEG-2 transport streams) + * 0 if not set. + * + * - encoding: unused + * - decoding: Set by decoder. + */ + int dtg_active_format; +#define FF_DTG_AFD_SAME 8 +#define FF_DTG_AFD_4_3 9 +#define FF_DTG_AFD_16_9 10 +#define FF_DTG_AFD_14_9 11 +#define FF_DTG_AFD_4_3_SP_14_9 13 +#define FF_DTG_AFD_16_9_SP_14_9 14 +#define FF_DTG_AFD_SP_4_3 15 + + /** + * maximum motion estimation search range in subpel units + * If 0 then no limit. + * + * - encoding: Set by user. + * - decoding: unused + */ + int me_range; + + /** + * intra quantizer bias + * - encoding: Set by user. + * - decoding: unused + */ + int intra_quant_bias; +#define FF_DEFAULT_QUANT_BIAS 999999 + + /** + * inter quantizer bias + * - encoding: Set by user. + * - decoding: unused + */ + int inter_quant_bias; + + /** + * color table ID + * - encoding: unused + * - decoding: Which clrtable should be used for 8bit RGB images. + * Tables have to be stored somewhere. FIXME + */ + int color_table_id; + +#if FF_API_INTERNAL_CONTEXT + /** + * internal_buffer count + * Don't touch, used by libavcodec default_get_buffer(). + * @deprecated this field was moved to an internal context + */ + attribute_deprecated int internal_buffer_count; + + /** + * internal_buffers + * Don't touch, used by libavcodec default_get_buffer(). + * @deprecated this field was moved to an internal context + */ + attribute_deprecated void *internal_buffer; +#endif + + /** + * Global quality for codecs which cannot change it per frame. + * This should be proportional to MPEG-1/2/4 qscale. + * - encoding: Set by user. + * - decoding: unused + */ + int global_quality; + +#define FF_CODER_TYPE_VLC 0 +#define FF_CODER_TYPE_AC 1 +#define FF_CODER_TYPE_RAW 2 +#define FF_CODER_TYPE_RLE 3 +#define FF_CODER_TYPE_DEFLATE 4 + /** + * coder type + * - encoding: Set by user. + * - decoding: unused + */ + int coder_type; + + /** + * context model + * - encoding: Set by user. + * - decoding: unused + */ + int context_model; +#if 0 + /** + * + * - encoding: unused + * - decoding: Set by user. + */ + uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size); +#endif + + /** + * slice flags + * - encoding: unused + * - decoding: Set by user. + */ + int slice_flags; +#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display +#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics) +#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1) + + /** + * XVideo Motion Acceleration + * - encoding: forbidden + * - decoding: set by decoder + */ + int xvmc_acceleration; + + /** + * macroblock decision mode + * - encoding: Set by user. + * - decoding: unused + */ + int mb_decision; +#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp +#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits +#define FF_MB_DECISION_RD 2 ///< rate distortion + + /** + * custom intra quantization matrix + * - encoding: Set by user, can be NULL. + * - decoding: Set by libavcodec. + */ + uint16_t *intra_matrix; + + /** + * custom inter quantization matrix + * - encoding: Set by user, can be NULL. + * - decoding: Set by libavcodec. + */ + uint16_t *inter_matrix; + + /** + * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). + * This is used to work around some encoder bugs. + * - encoding: unused + * - decoding: Set by user, will be converted to uppercase by libavcodec during init. + */ + unsigned int stream_codec_tag; + + /** + * scene change detection threshold + * 0 is default, larger means fewer detected scene changes. + * - encoding: Set by user. + * - decoding: unused + */ + int scenechange_threshold; + + /** + * minimum Lagrange multipler + * - encoding: Set by user. + * - decoding: unused + */ + int lmin; + + /** + * maximum Lagrange multipler + * - encoding: Set by user. + * - decoding: unused + */ + int lmax; + +#if FF_API_PALETTE_CONTROL + /** + * palette control structure + * - encoding: ??? (no palette-enabled encoder yet) + * - decoding: Set by user. + */ + struct AVPaletteControl *palctrl; +#endif + + /** + * noise reduction strength + * - encoding: Set by user. + * - decoding: unused + */ + int noise_reduction; + + /** + * Called at the beginning of a frame to get cr buffer for it. + * Buffer type (size, hints) must be the same. libavcodec won't check it. + * libavcodec will pass previous buffer in pic, function should return + * same buffer or new buffer with old frame "painted" into it. + * If pic.data[0] == NULL must behave like get_buffer(). + * if CODEC_CAP_DR1 is not set then reget_buffer() must call + * avcodec_default_reget_buffer() instead of providing buffers allocated by + * some other means. + * - encoding: unused + * - decoding: Set by libavcodec, user can override. + */ + int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic); + + /** + * Number of bits which should be loaded into the rc buffer before decoding starts. + * - encoding: Set by user. + * - decoding: unused + */ + int rc_initial_buffer_occupancy; + + /** + * + * - encoding: Set by user. + * - decoding: unused + */ + int inter_threshold; + + /** + * CODEC_FLAG2_* + * - encoding: Set by user. + * - decoding: Set by user. + */ + int flags2; + + /** + * Simulates errors in the bitstream to test error concealment. + * - encoding: Set by user. + * - decoding: unused + */ + int error_rate; + +#if FF_API_ANTIALIAS_ALGO + /** + * MP3 antialias algorithm, see FF_AA_* below. + * - encoding: unused + * - decoding: Set by user. + */ + attribute_deprecated int antialias_algo; +#define FF_AA_AUTO 0 +#define FF_AA_FASTINT 1 //not implemented yet +#define FF_AA_INT 2 +#define FF_AA_FLOAT 3 +#endif + + /** + * quantizer noise shaping + * - encoding: Set by user. + * - decoding: unused + */ + int quantizer_noise_shaping; + + /** + * thread count + * is used to decide how many independent tasks should be passed to execute() + * - encoding: Set by user. + * - decoding: Set by user. + */ + int thread_count; + + /** + * The codec may call this to execute several independent things. + * It will return only after finishing all tasks. + * The user may replace this with some multithreaded implementation, + * the default implementation will execute the parts serially. + * @param count the number of things to execute + * - encoding: Set by libavcodec, user can override. + * - decoding: Set by libavcodec, user can override. + */ + int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size); + + /** + * thread opaque + * Can be used by execute() to store some per AVCodecContext stuff. + * - encoding: set by execute() + * - decoding: set by execute() + */ + void *thread_opaque; + + /** + * Motion estimation threshold below which no motion estimation is + * performed, but instead the user specified motion vectors are used. + * + * - encoding: Set by user. + * - decoding: unused + */ + int me_threshold; + + /** + * Macroblock threshold below which the user specified macroblock types will be used. + * - encoding: Set by user. + * - decoding: unused + */ + int mb_threshold; + + /** + * precision of the intra DC coefficient - 8 + * - encoding: Set by user. + * - decoding: unused + */ + int intra_dc_precision; + + /** + * noise vs. sse weight for the nsse comparsion function + * - encoding: Set by user. + * - decoding: unused + */ + int nsse_weight; + + /** + * Number of macroblock rows at the top which are skipped. + * - encoding: unused + * - decoding: Set by user. + */ + int skip_top; + + /** + * Number of macroblock rows at the bottom which are skipped. + * - encoding: unused + * - decoding: Set by user. + */ + int skip_bottom; + + /** + * profile + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + int profile; +#define FF_PROFILE_UNKNOWN -99 +#define FF_PROFILE_RESERVED -100 + +#define FF_PROFILE_AAC_MAIN 0 +#define FF_PROFILE_AAC_LOW 1 +#define FF_PROFILE_AAC_SSR 2 +#define FF_PROFILE_AAC_LTP 3 + +#define FF_PROFILE_DTS 20 +#define FF_PROFILE_DTS_ES 30 +#define FF_PROFILE_DTS_96_24 40 +#define FF_PROFILE_DTS_HD_HRA 50 +#define FF_PROFILE_DTS_HD_MA 60 + +#define FF_PROFILE_MPEG2_422 0 +#define FF_PROFILE_MPEG2_HIGH 1 +#define FF_PROFILE_MPEG2_SS 2 +#define FF_PROFILE_MPEG2_SNR_SCALABLE 3 +#define FF_PROFILE_MPEG2_MAIN 4 +#define FF_PROFILE_MPEG2_SIMPLE 5 + +#define FF_PROFILE_H264_CONSTRAINED (1<<9) // 8+1; constraint_set1_flag +#define FF_PROFILE_H264_INTRA (1<<11) // 8+3; constraint_set3_flag + +#define FF_PROFILE_H264_BASELINE 66 +#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED) +#define FF_PROFILE_H264_MAIN 77 +#define FF_PROFILE_H264_EXTENDED 88 +#define FF_PROFILE_H264_HIGH 100 +#define FF_PROFILE_H264_HIGH_10 110 +#define FF_PROFILE_H264_HIGH_10_INTRA (110|FF_PROFILE_H264_INTRA) +#define FF_PROFILE_H264_HIGH_422 122 +#define FF_PROFILE_H264_HIGH_422_INTRA (122|FF_PROFILE_H264_INTRA) +#define FF_PROFILE_H264_HIGH_444 144 +#define FF_PROFILE_H264_HIGH_444_PREDICTIVE 244 +#define FF_PROFILE_H264_HIGH_444_INTRA (244|FF_PROFILE_H264_INTRA) +#define FF_PROFILE_H264_CAVLC_444 44 + +#define FF_PROFILE_VC1_SIMPLE 0 +#define FF_PROFILE_VC1_MAIN 1 +#define FF_PROFILE_VC1_COMPLEX 2 +#define FF_PROFILE_VC1_ADVANCED 3 + +#define FF_PROFILE_MPEG4_SIMPLE 0 +#define FF_PROFILE_MPEG4_SIMPLE_SCALABLE 1 +#define FF_PROFILE_MPEG4_CORE 2 +#define FF_PROFILE_MPEG4_MAIN 3 +#define FF_PROFILE_MPEG4_N_BIT 4 +#define FF_PROFILE_MPEG4_SCALABLE_TEXTURE 5 +#define FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION 6 +#define FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE 7 +#define FF_PROFILE_MPEG4_HYBRID 8 +#define FF_PROFILE_MPEG4_ADVANCED_REAL_TIME 9 +#define FF_PROFILE_MPEG4_CORE_SCALABLE 10 +#define FF_PROFILE_MPEG4_ADVANCED_CODING 11 +#define FF_PROFILE_MPEG4_ADVANCED_CORE 12 +#define FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE 13 +#define FF_PROFILE_MPEG4_SIMPLE_STUDIO 14 +#define FF_PROFILE_MPEG4_ADVANCED_SIMPLE 15 + + /** + * level + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + int level; +#define FF_LEVEL_UNKNOWN -99 + + /** + * low resolution decoding, 1-> 1/2 size, 2->1/4 size + * - encoding: unused + * - decoding: Set by user. + */ + int lowres; + + /** + * Bitstream width / height, may be different from width/height if lowres enabled. + * - encoding: unused + * - decoding: Set by user before init if known. Codec should override / dynamically change if needed. + */ + int coded_width, coded_height; + + /** + * frame skip threshold + * - encoding: Set by user. + * - decoding: unused + */ + int frame_skip_threshold; + + /** + * frame skip factor + * - encoding: Set by user. + * - decoding: unused + */ + int frame_skip_factor; + + /** + * frame skip exponent + * - encoding: Set by user. + * - decoding: unused + */ + int frame_skip_exp; + + /** + * frame skip comparison function + * - encoding: Set by user. + * - decoding: unused + */ + int frame_skip_cmp; + + /** + * Border processing masking, raises the quantizer for mbs on the borders + * of the picture. + * - encoding: Set by user. + * - decoding: unused + */ + float border_masking; + + /** + * minimum MB lagrange multipler + * - encoding: Set by user. + * - decoding: unused + */ + int mb_lmin; + + /** + * maximum MB lagrange multipler + * - encoding: Set by user. + * - decoding: unused + */ + int mb_lmax; + + /** + * + * - encoding: Set by user. + * - decoding: unused + */ + int me_penalty_compensation; + + /** + * + * - encoding: unused + * - decoding: Set by user. + */ + enum AVDiscard skip_loop_filter; + + /** + * + * - encoding: unused + * - decoding: Set by user. + */ + enum AVDiscard skip_idct; + + /** + * + * - encoding: unused + * - decoding: Set by user. + */ + enum AVDiscard skip_frame; + + /** + * + * - encoding: Set by user. + * - decoding: unused + */ + int bidir_refine; + + /** + * + * - encoding: Set by user. + * - decoding: unused + */ + int brd_scale; + +#if FF_API_X264_GLOBAL_OPTS + /** + * constant rate factor - quality-based VBR - values ~correspond to qps + * - encoding: Set by user. + * - decoding: unused + * @deprecated use 'crf' libx264 private option + */ + attribute_deprecated float crf; + + /** + * constant quantization parameter rate control method + * - encoding: Set by user. + * - decoding: unused + * @deprecated use 'cqp' libx264 private option + */ + attribute_deprecated int cqp; +#endif + + /** + * minimum GOP size + * - encoding: Set by user. + * - decoding: unused + */ + int keyint_min; + + /** + * number of reference frames + * - encoding: Set by user. + * - decoding: Set by lavc. + */ + int refs; + + /** + * chroma qp offset from luma + * - encoding: Set by user. + * - decoding: unused + */ + int chromaoffset; + +#if FF_API_X264_GLOBAL_OPTS + /** + * Influences how often B-frames are used. + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated int bframebias; +#endif + + /** + * trellis RD quantization + * - encoding: Set by user. + * - decoding: unused + */ + int trellis; + +#if FF_API_X264_GLOBAL_OPTS + /** + * Reduce fluctuations in qp (before curve compression). + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated float complexityblur; + + /** + * in-loop deblocking filter alphac0 parameter + * alpha is in the range -6...6 + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated int deblockalpha; + + /** + * in-loop deblocking filter beta parameter + * beta is in the range -6...6 + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated int deblockbeta; + + /** + * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4 + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated int partitions; +#define X264_PART_I4X4 0x001 /* Analyze i4x4 */ +#define X264_PART_I8X8 0x002 /* Analyze i8x8 (requires 8x8 transform) */ +#define X264_PART_P8X8 0x010 /* Analyze p16x8, p8x16 and p8x8 */ +#define X264_PART_P4X4 0x020 /* Analyze p8x4, p4x8, p4x4 */ +#define X264_PART_B8X8 0x100 /* Analyze b16x8, b8x16 and b8x8 */ + + /** + * direct MV prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto) + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated int directpred; +#endif + + /** + * Audio cutoff bandwidth (0 means "automatic") + * - encoding: Set by user. + * - decoding: unused + */ + int cutoff; + + /** + * Multiplied by qscale for each frame and added to scene_change_score. + * - encoding: Set by user. + * - decoding: unused + */ + int scenechange_factor; + + /** + * + * Note: Value depends upon the compare function used for fullpel ME. + * - encoding: Set by user. + * - decoding: unused + */ + int mv0_threshold; + + /** + * Adjusts sensitivity of b_frame_strategy 1. + * - encoding: Set by user. + * - decoding: unused + */ + int b_sensitivity; + + /** + * - encoding: Set by user. + * - decoding: unused + */ + int compression_level; +#define FF_COMPRESSION_DEFAULT -1 + + /** + * - encoding: Set by user. + * - decoding: unused + */ + int min_prediction_order; + + /** + * - encoding: Set by user. + * - decoding: unused + */ + int max_prediction_order; + +#if FF_API_FLAC_GLOBAL_OPTS + /** + * @name FLAC options + * @deprecated Use FLAC encoder private options instead. + * @{ + */ + + /** + * LPC coefficient precision - used by FLAC encoder + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated int lpc_coeff_precision; + + /** + * search method for selecting prediction order + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated int prediction_order_method; + + /** + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated int min_partition_order; + + /** + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated int max_partition_order; + /** + * @} + */ +#endif + + /** + * GOP timecode frame start number, in non drop frame format + * - encoding: Set by user. + * - decoding: unused + */ + int64_t timecode_frame_start; + +#if FF_API_REQUEST_CHANNELS + /** + * Decoder should decode to this many channels if it can (0 for default) + * - encoding: unused + * - decoding: Set by user. + * @deprecated Deprecated in favor of request_channel_layout. + */ + int request_channels; +#endif + +#if FF_API_DRC_SCALE + /** + * Percentage of dynamic range compression to be applied by the decoder. + * The default value is 1.0, corresponding to full compression. + * - encoding: unused + * - decoding: Set by user. + * @deprecated use AC3 decoder private option instead. + */ + attribute_deprecated float drc_scale; +#endif + + /** + * opaque 64bit number (generally a PTS) that will be reordered and + * output in AVFrame.reordered_opaque + * @deprecated in favor of pkt_pts + * - encoding: unused + * - decoding: Set by user. + */ + int64_t reordered_opaque; + + /** + * Bits per sample/pixel of internal libavcodec pixel/sample format. + * - encoding: set by user. + * - decoding: set by libavcodec. + */ + int bits_per_raw_sample; + + /** + * Audio channel layout. + * - encoding: set by user. + * - decoding: set by user, may be overwritten by libavcodec. + */ + int64_t channel_layout; + + /** + * Request decoder to use this channel layout if it can (0 for default) + * - encoding: unused + * - decoding: Set by user. + */ + int64_t request_channel_layout; + + /** + * Ratecontrol attempt to use, at maximum, of what can be used without an underflow. + * - encoding: Set by user. + * - decoding: unused. + */ + float rc_max_available_vbv_use; + + /** + * Ratecontrol attempt to use, at least, times the amount needed to prevent a vbv overflow. + * - encoding: Set by user. + * - decoding: unused. + */ + float rc_min_vbv_overflow_use; + + /** + * Hardware accelerator in use + * - encoding: unused. + * - decoding: Set by libavcodec + */ + struct AVHWAccel *hwaccel; + + /** + * For some codecs, the time base is closer to the field rate than the frame rate. + * Most notably, H.264 and MPEG-2 specify time_base as half of frame duration + * if no telecine is used ... + * + * Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2. + */ + int ticks_per_frame; + + /** + * Hardware accelerator context. + * For some hardware accelerators, a global context needs to be + * provided by the user. In that case, this holds display-dependent + * data FFmpeg cannot instantiate itself. Please refer to the + * FFmpeg HW accelerator documentation to know how to fill this + * is. e.g. for VA API, this is a struct vaapi_context. + * - encoding: unused + * - decoding: Set by user + */ + void *hwaccel_context; + + /** + * Chromaticity coordinates of the source primaries. + * - encoding: Set by user + * - decoding: Set by libavcodec + */ + enum AVColorPrimaries color_primaries; + + /** + * Color Transfer Characteristic. + * - encoding: Set by user + * - decoding: Set by libavcodec + */ + enum AVColorTransferCharacteristic color_trc; + + /** + * YUV colorspace type. + * - encoding: Set by user + * - decoding: Set by libavcodec + */ + enum AVColorSpace colorspace; + + /** + * MPEG vs JPEG YUV range. + * - encoding: Set by user + * - decoding: Set by libavcodec + */ + enum AVColorRange color_range; + + /** + * This defines the location of chroma samples. + * - encoding: Set by user + * - decoding: Set by libavcodec + */ + enum AVChromaLocation chroma_sample_location; + + /** + * The codec may call this to execute several independent things. + * It will return only after finishing all tasks. + * The user may replace this with some multithreaded implementation, + * the default implementation will execute the parts serially. + * Also see avcodec_thread_init and e.g. the --enable-pthread configure option. + * @param c context passed also to func + * @param count the number of things to execute + * @param arg2 argument passed unchanged to func + * @param ret return values of executed functions, must have space for "count" values. May be NULL. + * @param func function that will be called count times, with jobnr from 0 to count-1. + * threadnr will be in the range 0 to c->thread_count-1 < MAX_THREADS and so that no + * two instances of func executing at the same time will have the same threadnr. + * @return always 0 currently, but code should handle a future improvement where when any call to func + * returns < 0 no further calls to func may be done and < 0 is returned. + * - encoding: Set by libavcodec, user can override. + * - decoding: Set by libavcodec, user can override. + */ + int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count); + +#if FF_API_X264_GLOBAL_OPTS + /** + * explicit P-frame weighted prediction analysis method + * 0: off + * 1: fast blind weighting (one reference duplicate with -1 offset) + * 2: smart weighting (full fade detection analysis) + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated int weighted_p_pred; + + /** + * AQ mode + * 0: Disabled + * 1: Variance AQ (complexity mask) + * 2: Auto-variance AQ (experimental) + * - encoding: Set by user + * - decoding: unused + */ + attribute_deprecated int aq_mode; + + /** + * AQ strength + * Reduces blocking and blurring in flat and textured areas. + * - encoding: Set by user + * - decoding: unused + */ + attribute_deprecated float aq_strength; + + /** + * PSY RD + * Strength of psychovisual optimization + * - encoding: Set by user + * - decoding: unused + */ + attribute_deprecated float psy_rd; + + /** + * PSY trellis + * Strength of psychovisual optimization + * - encoding: Set by user + * - decoding: unused + */ + attribute_deprecated float psy_trellis; + + /** + * RC lookahead + * Number of frames for frametype and ratecontrol lookahead + * - encoding: Set by user + * - decoding: unused + */ + attribute_deprecated int rc_lookahead; + + /** + * Constant rate factor maximum + * With CRF encoding mode and VBV restrictions enabled, prevents quality from being worse + * than crf_max, even if doing so would violate VBV restrictions. + * - encoding: Set by user. + * - decoding: unused + */ + attribute_deprecated float crf_max; +#endif + + int log_level_offset; + +#if FF_API_FLAC_GLOBAL_OPTS + /** + * Determines which LPC analysis algorithm to use. + * - encoding: Set by user + * - decoding: unused + */ + attribute_deprecated enum AVLPCType lpc_type; + + /** + * Number of passes to use for Cholesky factorization during LPC analysis + * - encoding: Set by user + * - decoding: unused + */ + attribute_deprecated int lpc_passes; +#endif + + /** + * Number of slices. + * Indicates number of picture subdivisions. Used for parallelized + * decoding. + * - encoding: Set by user + * - decoding: unused + */ + int slices; + + /** + * Header containing style information for text subtitles. + * For SUBTITLE_ASS subtitle type, it should contain the whole ASS + * [Script Info] and [V4+ Styles] section, plus the [Events] line and + * the Format line following. It shouldn't include any Dialogue line. + * - encoding: Set/allocated/freed by user (before avcodec_open()) + * - decoding: Set/allocated/freed by libavcodec (by avcodec_open()) + */ + uint8_t *subtitle_header; + int subtitle_header_size; + + /** + * Current packet as passed into the decoder, to avoid having + * to pass the packet into every function. Currently only valid + * inside lavc and get/release_buffer callbacks. + * - decoding: set by avcodec_decode_*, read by get_buffer() for setting pkt_pts + * - encoding: unused + */ + AVPacket *pkt; + +#if FF_API_INTERNAL_CONTEXT + /** + * Whether this is a copy of the context which had init() called on it. + * This is used by multithreading - shared tables and picture pointers + * should be freed from the original context only. + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + * + * @deprecated this field has been moved to an internal context + */ + attribute_deprecated int is_copy; +#endif + + /** + * Which multithreading methods to use. + * Use of FF_THREAD_FRAME will increase decoding delay by one frame per thread, + * so clients which cannot provide future frames should not use it. + * + * - encoding: Set by user, otherwise the default is used. + * - decoding: Set by user, otherwise the default is used. + */ + int thread_type; +#define FF_THREAD_FRAME 1 ///< Decode more than one frame at once +#define FF_THREAD_SLICE 2 ///< Decode more than one part of a single frame at once + + /** + * Which multithreading methods are in use by the codec. + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + */ + int active_thread_type; + + /** + * Set by the client if its custom get_buffer() callback can be called + * from another thread, which allows faster multithreaded decoding. + * draw_horiz_band() will be called from other threads regardless of this setting. + * Ignored if the default get_buffer() is used. + * - encoding: Set by user. + * - decoding: Set by user. + */ + int thread_safe_callbacks; + + /** + * VBV delay coded in the last frame (in periods of a 27 MHz clock). + * Used for compliant TS muxing. + * - encoding: Set by libavcodec. + * - decoding: unused. + */ + uint64_t vbv_delay; + + /** + * Type of service that the audio stream conveys. + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + enum AVAudioServiceType audio_service_type; + + /** + * desired sample format + * - encoding: Not used. + * - decoding: Set by user. + * Decoder will decode to this format if it can. + */ + enum AVSampleFormat request_sample_fmt; + + /** + * Error recognition; may misdetect some more or less valid parts as errors. + * - encoding: unused + * - decoding: Set by user. + */ + int err_recognition; +#define AV_EF_CRCCHECK (1<<0) +#define AV_EF_BITSTREAM (1<<1) +#define AV_EF_BUFFER (1<<2) +#define AV_EF_EXPLODE (1<<3) + +#define AV_EF_CAREFUL (1<<16) +#define AV_EF_COMPLIANT (1<<17) +#define AV_EF_AGGRESSIVE (1<<18) + + /** + * Private context used for internal data. + * + * Unlike priv_data, this is not codec-specific. It is used in general + * libavcodec functions. + */ + struct AVCodecInternal *internal; + + /** + * Current statistics for PTS correction. + * - decoding: maintained and used by libavcodec, not intended to be used by user apps + * - encoding: unused + */ + int64_t pts_correction_num_faulty_pts; /// Number of incorrect PTS values so far + int64_t pts_correction_num_faulty_dts; /// Number of incorrect DTS values so far + int64_t pts_correction_last_pts; /// PTS of the last frame + int64_t pts_correction_last_dts; /// DTS of the last frame + +} AVCodecContext; + +/** + * AVProfile. + */ +typedef struct AVProfile { + int profile; + const char *name; ///< short name for the profile +} AVProfile; + +typedef struct AVCodecDefault AVCodecDefault; + +/** + * AVCodec. + */ +typedef struct AVCodec { + /** + * Name of the codec implementation. + * The name is globally unique among encoders and among decoders (but an + * encoder and a decoder can share the same name). + * This is the primary way to find a codec from the user perspective. + */ + const char *name; + enum AVMediaType type; + enum CodecID id; + int priv_data_size; + int (*init)(AVCodecContext *); + int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data); + int (*close)(AVCodecContext *); + int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt); + /** + * Codec capabilities. + * see CODEC_CAP_* + */ + int capabilities; + struct AVCodec *next; + /** + * Flush buffers. + * Will be called when seeking + */ + void (*flush)(AVCodecContext *); + const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0} + const enum PixelFormat *pix_fmts; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1 + /** + * Descriptive name for the codec, meant to be more human readable than name. + * You should use the NULL_IF_CONFIG_SMALL() macro to define it. + */ + const char *long_name; + const int *supported_samplerates; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0 + const enum AVSampleFormat *sample_fmts; ///< array of supported sample formats, or NULL if unknown, array is terminated by -1 + const int64_t *channel_layouts; ///< array of support channel layouts, or NULL if unknown. array is terminated by 0 + uint8_t max_lowres; ///< maximum value for lowres supported by the decoder + const AVClass *priv_class; ///< AVClass for the private context + const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} + + /** + * @name Frame-level threading support functions + * @{ + */ + /** + * If defined, called on thread contexts when they are created. + * If the codec allocates writable tables in init(), re-allocate them here. + * priv_data will be set to a copy of the original. + */ + int (*init_thread_copy)(AVCodecContext *); + /** + * Copy necessary context variables from a previous thread context to the current one. + * If not defined, the next thread will start automatically; otherwise, the codec + * must call ff_thread_finish_setup(). + * + * dst and src will (rarely) point to the same context, in which case memcpy should be skipped. + */ + int (*update_thread_context)(AVCodecContext *dst, const AVCodecContext *src); + /** @} */ + + /** + * Private codec-specific defaults. + */ + const AVCodecDefault *defaults; + + /** + * Initialize codec static data, called from avcodec_register(). + */ + void (*init_static_data)(struct AVCodec *codec); +} AVCodec; + +/** + * AVHWAccel. + */ +typedef struct AVHWAccel { + /** + * Name of the hardware accelerated codec. + * The name is globally unique among encoders and among decoders (but an + * encoder and a decoder can share the same name). + */ + const char *name; + + /** + * Type of codec implemented by the hardware accelerator. + * + * See AVMEDIA_TYPE_xxx + */ + enum AVMediaType type; + + /** + * Codec implemented by the hardware accelerator. + * + * See CODEC_ID_xxx + */ + enum CodecID id; + + /** + * Supported pixel format. + * + * Only hardware accelerated formats are supported here. + */ + enum PixelFormat pix_fmt; + + /** + * Hardware accelerated codec capabilities. + * see FF_HWACCEL_CODEC_CAP_* + */ + int capabilities; + + struct AVHWAccel *next; + + /** + * Called at the beginning of each frame or field picture. + * + * Meaningful frame information (codec specific) is guaranteed to + * be parsed at this point. This function is mandatory. + * + * Note that buf can be NULL along with buf_size set to 0. + * Otherwise, this means the whole frame is available at this point. + * + * @param avctx the codec context + * @param buf the frame data buffer base + * @param buf_size the size of the frame in bytes + * @return zero if successful, a negative value otherwise + */ + int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size); + + /** + * Callback for each slice. + * + * Meaningful slice information (codec specific) is guaranteed to + * be parsed at this point. This function is mandatory. + * + * @param avctx the codec context + * @param buf the slice data buffer base + * @param buf_size the size of the slice in bytes + * @return zero if successful, a negative value otherwise + */ + int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size); + + /** + * Called at the end of each frame or field picture. + * + * The whole picture is parsed at this point and can now be sent + * to the hardware accelerator. This function is mandatory. + * + * @param avctx the codec context + * @return zero if successful, a negative value otherwise + */ + int (*end_frame)(AVCodecContext *avctx); + + /** + * Size of HW accelerator private data. + * + * Private data is allocated with av_mallocz() before + * AVCodecContext.get_buffer() and deallocated after + * AVCodecContext.release_buffer(). + */ + int priv_data_size; +} AVHWAccel; + +/** + * four components are given, that's all. + * the last component is alpha + */ +typedef struct AVPicture { + uint8_t *data[4]; + int linesize[4]; ///< number of bytes per line +} AVPicture; + +#define AVPALETTE_SIZE 1024 +#define AVPALETTE_COUNT 256 +#if FF_API_PALETTE_CONTROL +/** + * AVPaletteControl + * This structure defines a method for communicating palette changes + * between and demuxer and a decoder. + * + * @deprecated Use AVPacket to send palette changes instead. + * This is totally broken. + */ +typedef struct AVPaletteControl { + + /* Demuxer sets this to 1 to indicate the palette has changed; + * decoder resets to 0. */ + int palette_changed; + + /* 4-byte ARGB palette entries, stored in native byte order; note that + * the individual palette components should be on a 8-bit scale; if + * the palette data comes from an IBM VGA native format, the component + * data is probably 6 bits in size and needs to be scaled. */ + unsigned int palette[AVPALETTE_COUNT]; + +} AVPaletteControl attribute_deprecated; +#endif + +enum AVSubtitleType { + SUBTITLE_NONE, + + SUBTITLE_BITMAP, ///< A bitmap, pict will be set + + /** + * Plain text, the text field must be set by the decoder and is + * authoritative. ass and pict fields may contain approximations. + */ + SUBTITLE_TEXT, + + /** + * Formatted text, the ass field must be set by the decoder and is + * authoritative. pict and text fields may contain approximations. + */ + SUBTITLE_ASS, +}; + +typedef struct AVSubtitleRect { + int x; ///< top left corner of pict, undefined when pict is not set + int y; ///< top left corner of pict, undefined when pict is not set + int w; ///< width of pict, undefined when pict is not set + int h; ///< height of pict, undefined when pict is not set + int nb_colors; ///< number of colors in pict, undefined when pict is not set + + /** + * data+linesize for the bitmap of this subtitle. + * can be set for text/ass as well once they where rendered + */ + AVPicture pict; + enum AVSubtitleType type; + + char *text; ///< 0 terminated plain UTF-8 text + + /** + * 0 terminated ASS/SSA compatible event line. + * The pressentation of this is unaffected by the other values in this + * struct. + */ + char *ass; +} AVSubtitleRect; + +typedef struct AVSubtitle { + uint16_t format; /* 0 = graphics */ + uint32_t start_display_time; /* relative to packet pts, in ms */ + uint32_t end_display_time; /* relative to packet pts, in ms */ + unsigned num_rects; + AVSubtitleRect **rects; + int64_t pts; ///< Same as packet pts, in AV_TIME_BASE +} AVSubtitle; + +/* packet functions */ + +/** + * @deprecated use NULL instead + */ +attribute_deprecated void av_destruct_packet_nofree(AVPacket *pkt); + +/** + * Default packet destructor. + */ +void av_destruct_packet(AVPacket *pkt); + +/** + * Initialize optional fields of a packet with default values. + * + * @param pkt packet + */ +void av_init_packet(AVPacket *pkt); + +/** + * Allocate the payload of a packet and initialize its fields with + * default values. + * + * @param pkt packet + * @param size wanted payload size + * @return 0 if OK, AVERROR_xxx otherwise + */ +int av_new_packet(AVPacket *pkt, int size); + +/** + * Reduce packet size, correctly zeroing padding + * + * @param pkt packet + * @param size new size + */ +void av_shrink_packet(AVPacket *pkt, int size); + +/** + * Increase packet size, correctly zeroing padding + * + * @param pkt packet + * @param grow_by number of bytes by which to increase the size of the packet + */ +int av_grow_packet(AVPacket *pkt, int grow_by); + +/** + * @warning This is a hack - the packet memory allocation stuff is broken. The + * packet is allocated if it was not really allocated. + */ +int av_dup_packet(AVPacket *pkt); + +/** + * Free a packet. + * + * @param pkt packet to free + */ +void av_free_packet(AVPacket *pkt); + +/** + * Allocate new information of a packet. + * + * @param pkt packet + * @param type side information type + * @param size side information size + * @return pointer to fresh allocated data or NULL otherwise + */ +uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, + int size); + +/** + * Get side information from packet. + * + * @param pkt packet + * @param type desired side information type + * @param size pointer for side information size to store (optional) + * @return pointer to data if present or NULL otherwise + */ +uint8_t* av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type, + int *size); + +int av_packet_merge_side_data(AVPacket *pkt); + +int av_packet_split_side_data(AVPacket *pkt); + + +/* resample.c */ + +struct ReSampleContext; +struct AVResampleContext; + +typedef struct ReSampleContext ReSampleContext; + +/** + * Initialize audio resampling context. + * + * @param output_channels number of output channels + * @param input_channels number of input channels + * @param output_rate output sample rate + * @param input_rate input sample rate + * @param sample_fmt_out requested output sample format + * @param sample_fmt_in input sample format + * @param filter_length length of each FIR filter in the filterbank relative to the cutoff frequency + * @param log2_phase_count log2 of the number of entries in the polyphase filterbank + * @param linear if 1 then the used FIR filter will be linearly interpolated + between the 2 closest, if 0 the closest will be used + * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate + * @return allocated ReSampleContext, NULL if error occured + */ +ReSampleContext *av_audio_resample_init(int output_channels, int input_channels, + int output_rate, int input_rate, + enum AVSampleFormat sample_fmt_out, + enum AVSampleFormat sample_fmt_in, + int filter_length, int log2_phase_count, + int linear, double cutoff); + +int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples); + +/** + * Free resample context. + * + * @param s a non-NULL pointer to a resample context previously + * created with av_audio_resample_init() + */ +void audio_resample_close(ReSampleContext *s); + + +/** + * Initialize an audio resampler. + * Note, if either rate is not an integer then simply scale both rates up so they are. + * @param filter_length length of each FIR filter in the filterbank relative to the cutoff freq + * @param log2_phase_count log2 of the number of entries in the polyphase filterbank + * @param linear If 1 then the used FIR filter will be linearly interpolated + between the 2 closest, if 0 the closest will be used + * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate + */ +struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff); + +/** + * Resample an array of samples using a previously configured context. + * @param src an array of unconsumed samples + * @param consumed the number of samples of src which have been consumed are returned here + * @param src_size the number of unconsumed samples available + * @param dst_size the amount of space in samples available in dst + * @param update_ctx If this is 0 then the context will not be modified, that way several channels can be resampled with the same context. + * @return the number of samples written in dst or -1 if an error occurred + */ +int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx); + + +/** + * Compensate samplerate/timestamp drift. The compensation is done by changing + * the resampler parameters, so no audible clicks or similar distortions occur + * @param compensation_distance distance in output samples over which the compensation should be performed + * @param sample_delta number of output samples which should be output less + * + * example: av_resample_compensate(c, 10, 500) + * here instead of 510 samples only 500 samples would be output + * + * note, due to rounding the actual compensation might be slightly different, + * especially if the compensation_distance is large and the in_rate used during init is small + */ +void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance); +void av_resample_close(struct AVResampleContext *c); + +/** + * Allocate memory for a picture. Call avpicture_free() to free it. + * + * @see avpicture_fill() + * + * @param picture the picture to be filled in + * @param pix_fmt the format of the picture + * @param width the width of the picture + * @param height the height of the picture + * @return zero if successful, a negative value if not + */ +int avpicture_alloc(AVPicture *picture, enum PixelFormat pix_fmt, int width, int height); + +/** + * Free a picture previously allocated by avpicture_alloc(). + * The data buffer used by the AVPicture is freed, but the AVPicture structure + * itself is not. + * + * @param picture the AVPicture to be freed + */ +void avpicture_free(AVPicture *picture); + +/** + * Fill in the AVPicture fields. + * The fields of the given AVPicture are filled in by using the 'ptr' address + * which points to the image data buffer. Depending on the specified picture + * format, one or multiple image data pointers and line sizes will be set. + * If a planar format is specified, several pointers will be set pointing to + * the different picture planes and the line sizes of the different planes + * will be stored in the lines_sizes array. + * Call with ptr == NULL to get the required size for the ptr buffer. + * + * To allocate the buffer and fill in the AVPicture fields in one call, + * use avpicture_alloc(). + * + * @param picture AVPicture whose fields are to be filled in + * @param ptr Buffer which will contain or contains the actual image data + * @param pix_fmt The format in which the picture data is stored. + * @param width the width of the image in pixels + * @param height the height of the image in pixels + * @return size of the image data in bytes + */ +int avpicture_fill(AVPicture *picture, uint8_t *ptr, + enum PixelFormat pix_fmt, int width, int height); + +/** + * Copy pixel data from an AVPicture into a buffer. + * The data is stored compactly, without any gaps for alignment or padding + * which may be applied by avpicture_fill(). + * + * @see avpicture_get_size() + * + * @param[in] src AVPicture containing image data + * @param[in] pix_fmt The format in which the picture data is stored. + * @param[in] width the width of the image in pixels. + * @param[in] height the height of the image in pixels. + * @param[out] dest A buffer into which picture data will be copied. + * @param[in] dest_size The size of 'dest'. + * @return The number of bytes written to dest, or a negative value (error code) on error. + */ +int avpicture_layout(const AVPicture* src, enum PixelFormat pix_fmt, int width, int height, + unsigned char *dest, int dest_size); + +/** + * Calculate the size in bytes that a picture of the given width and height + * would occupy if stored in the given picture format. + * Note that this returns the size of a compact representation as generated + * by avpicture_layout(), which can be smaller than the size required for e.g. + * avpicture_fill(). + * + * @param pix_fmt the given picture format + * @param width the width of the image + * @param height the height of the image + * @return Image data size in bytes or -1 on error (e.g. too large dimensions). + */ +int avpicture_get_size(enum PixelFormat pix_fmt, int width, int height); +void avcodec_get_chroma_sub_sample(enum PixelFormat pix_fmt, int *h_shift, int *v_shift); + +/** + * Get the name of a codec. + * @return a static string identifying the codec; never NULL + */ +const char *avcodec_get_name(enum CodecID id); + +#if FF_API_GET_PIX_FMT_NAME +/** + * Return the short name for a pixel format. + * + * \see av_get_pix_fmt(), av_get_pix_fmt_string(). + * @deprecated Deprecated in favor of av_get_pix_fmt_name(). + */ +attribute_deprecated +const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt); +#endif + +void avcodec_set_dimensions(AVCodecContext *s, int width, int height); + +/** + * Return a value representing the fourCC code associated to the + * pixel format pix_fmt, or 0 if no associated fourCC code can be + * found. + */ +unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat pix_fmt); + +/** + * Put a string representing the codec tag codec_tag in buf. + * + * @param buf_size size in bytes of buf + * @return the length of the string that would have been generated if + * enough space had been available, excluding the trailing null + */ +size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag); + +#define FF_LOSS_RESOLUTION 0x0001 /**< loss due to resolution change */ +#define FF_LOSS_DEPTH 0x0002 /**< loss due to color depth change */ +#define FF_LOSS_COLORSPACE 0x0004 /**< loss due to color space conversion */ +#define FF_LOSS_ALPHA 0x0008 /**< loss of alpha bits */ +#define FF_LOSS_COLORQUANT 0x0010 /**< loss due to color quantization */ +#define FF_LOSS_CHROMA 0x0020 /**< loss of chroma (e.g. RGB to gray conversion) */ + +/** + * Compute what kind of losses will occur when converting from one specific + * pixel format to another. + * When converting from one pixel format to another, information loss may occur. + * For example, when converting from RGB24 to GRAY, the color information will + * be lost. Similarly, other losses occur when converting from some formats to + * other formats. These losses can involve loss of chroma, but also loss of + * resolution, loss of color depth, loss due to the color space conversion, loss + * of the alpha bits or loss due to color quantization. + * avcodec_get_fix_fmt_loss() informs you about the various types of losses + * which will occur when converting from one pixel format to another. + * + * @param[in] dst_pix_fmt destination pixel format + * @param[in] src_pix_fmt source pixel format + * @param[in] has_alpha Whether the source pixel format alpha channel is used. + * @return Combination of flags informing you what kind of losses will occur + * (maximum loss for an invalid dst_pix_fmt). + */ +int avcodec_get_pix_fmt_loss(enum PixelFormat dst_pix_fmt, enum PixelFormat src_pix_fmt, + int has_alpha); + +/** + * Find the best pixel format to convert to given a certain source pixel + * format. When converting from one pixel format to another, information loss + * may occur. For example, when converting from RGB24 to GRAY, the color + * information will be lost. Similarly, other losses occur when converting from + * some formats to other formats. avcodec_find_best_pix_fmt() searches which of + * the given pixel formats should be used to suffer the least amount of loss. + * The pixel formats from which it chooses one, are determined by the + * pix_fmt_mask parameter. + * + * Note, only the first 64 pixel formats will fit in pix_fmt_mask. + * + * @code + * src_pix_fmt = PIX_FMT_YUV420P; + * pix_fmt_mask = (1 << PIX_FMT_YUV422P) | (1 << PIX_FMT_RGB24); + * dst_pix_fmt = avcodec_find_best_pix_fmt(pix_fmt_mask, src_pix_fmt, alpha, &loss); + * @endcode + * + * @param[in] pix_fmt_mask bitmask determining which pixel format to choose from + * @param[in] src_pix_fmt source pixel format + * @param[in] has_alpha Whether the source pixel format alpha channel is used. + * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur. + * @return The best pixel format to convert to or -1 if none was found. + */ +enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelFormat src_pix_fmt, + int has_alpha, int *loss_ptr); + +/** + * Find the best pixel format to convert to given a certain source pixel + * format and a selection of two destination pixel formats. When converting from + * one pixel format to another, information loss may occur. For example, when converting + * from RGB24 to GRAY, the color information will be lost. Similarly, other losses occur when + * converting from some formats to other formats. avcodec_find_best_pix_fmt2() selects which of + * the given pixel formats should be used to suffer the least amount of loss. + * + * If one of the destination formats is PIX_FMT_NONE the other pixel format (if valid) will be + * returned. + * + * @code + * src_pix_fmt = PIX_FMT_YUV420P; + * dst_pix_fmt1= PIX_FMT_RGB24; + * dst_pix_fmt2= PIX_FMT_GRAY8; + * dst_pix_fmt3= PIX_FMT_RGB8; + * loss= FF_LOSS_CHROMA; // don't care about chroma loss, so chroma loss will be ignored. + * dst_pix_fmt = avcodec_find_best_pix_fmt2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, alpha, &loss); + * dst_pix_fmt = avcodec_find_best_pix_fmt2(dst_pix_fmt, dst_pix_fmt3, src_pix_fmt, alpha, &loss); + * @endcode + * + * @param[in] dst_pix_fmt1 One of the two destination pixel formats to choose from + * @param[in] dst_pix_fmt2 The other of the two destination pixel formats to choose from + * @param[in] src_pix_fmt Source pixel format + * @param[in] has_alpha Whether the source pixel format alpha channel is used. + * @param[in, out] loss_ptr Combination of loss flags. In: selects which of the losses to ignore, i.e. + * NULL or value of zero means we care about all losses. Out: the loss + * that occurs when converting from src to selected dst pixel format. + * @return The best pixel format to convert to or -1 if none was found. + */ +enum PixelFormat avcodec_find_best_pix_fmt2(enum PixelFormat dst_pix_fmt1, enum PixelFormat dst_pix_fmt2, + enum PixelFormat src_pix_fmt, int has_alpha, int *loss_ptr); + +#if FF_API_GET_ALPHA_INFO +#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */ +#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */ + +/** + * Tell if an image really has transparent alpha values. + * @return ored mask of FF_ALPHA_xxx constants + */ +attribute_deprecated +int img_get_alpha_info(const AVPicture *src, + enum PixelFormat pix_fmt, int width, int height); +#endif + +/* deinterlace a picture */ +/* deinterlace - if not supported return -1 */ +int avpicture_deinterlace(AVPicture *dst, const AVPicture *src, + enum PixelFormat pix_fmt, int width, int height); + +/* external high level API */ + +/** + * If c is NULL, returns the first registered codec, + * if c is non-NULL, returns the next registered codec after c, + * or NULL if c is the last one. + */ +AVCodec *av_codec_next(AVCodec *c); + +/** + * Return the LIBAVCODEC_VERSION_INT constant. + */ +unsigned avcodec_version(void); + +/** + * Return the libavcodec build-time configuration. + */ +const char *avcodec_configuration(void); + +/** + * Return the libavcodec license. + */ +const char *avcodec_license(void); + +#if FF_API_AVCODEC_INIT +/** + * @deprecated this function is called automatically from avcodec_register() + * and avcodec_register_all(), there is no need to call it manually + */ +attribute_deprecated +void avcodec_init(void); +#endif + +/** + * Register the codec codec and initialize libavcodec. + * + * @warning either this function or avcodec_register_all() must be called + * before any other libavcodec functions. + * + * @see avcodec_register_all() + */ +void avcodec_register(AVCodec *codec); + +/** + * Find a registered encoder with a matching codec ID. + * + * @param id CodecID of the requested encoder + * @return An encoder if one was found, NULL otherwise. + */ +AVCodec *avcodec_find_encoder(enum CodecID id); + +/** + * Find a registered encoder with the specified name. + * + * @param name name of the requested encoder + * @return An encoder if one was found, NULL otherwise. + */ +AVCodec *avcodec_find_encoder_by_name(const char *name); + +/** + * Find a registered decoder with a matching codec ID. + * + * @param id CodecID of the requested decoder + * @return A decoder if one was found, NULL otherwise. + */ +AVCodec *avcodec_find_decoder(enum CodecID id); + +/** + * Find a registered decoder with the specified name. + * + * @param name name of the requested decoder + * @return A decoder if one was found, NULL otherwise. + */ +AVCodec *avcodec_find_decoder_by_name(const char *name); +void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode); + +/** + * Return a name for the specified profile, if available. + * + * @param codec the codec that is searched for the given profile + * @param profile the profile value for which a name is requested + * @return A name for the profile if found, NULL otherwise. + */ +const char *av_get_profile_name(const AVCodec *codec, int profile); + +#if FF_API_ALLOC_CONTEXT +/** + * Set the fields of the given AVCodecContext to default values. + * + * @param s The AVCodecContext of which the fields should be set to default values. + * @deprecated use avcodec_get_context_defaults3 + */ +attribute_deprecated +void avcodec_get_context_defaults(AVCodecContext *s); + +/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! + * we WILL change its arguments and name a few times! */ +attribute_deprecated +void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType); +#endif + +/** + * Set the fields of the given AVCodecContext to default values corresponding + * to the given codec (defaults may be codec-dependent). + * + * Do not call this function if a non-NULL codec has been passed + * to avcodec_alloc_context3() that allocated this AVCodecContext. + * If codec is non-NULL, it is illegal to call avcodec_open2() with a + * different codec on this AVCodecContext. + */ +int avcodec_get_context_defaults3(AVCodecContext *s, AVCodec *codec); + +#if FF_API_ALLOC_CONTEXT +/** + * Allocate an AVCodecContext and set its fields to default values. The + * resulting struct can be deallocated by simply calling av_free(). + * + * @return An AVCodecContext filled with default values or NULL on failure. + * @see avcodec_get_context_defaults + * + * @deprecated use avcodec_alloc_context3() + */ +attribute_deprecated +AVCodecContext *avcodec_alloc_context(void); + +/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! + * we WILL change its arguments and name a few times! */ +attribute_deprecated +AVCodecContext *avcodec_alloc_context2(enum AVMediaType); +#endif + +/** + * Allocate an AVCodecContext and set its fields to default values. The + * resulting struct can be deallocated by simply calling av_free(). + * + * @param codec if non-NULL, allocate private data and initialize defaults + * for the given codec. It is illegal to then call avcodec_open() + * with a different codec. + * + * @return An AVCodecContext filled with default values or NULL on failure. + * @see avcodec_get_context_defaults + */ +AVCodecContext *avcodec_alloc_context3(AVCodec *codec); + +/** + * Copy the settings of the source AVCodecContext into the destination + * AVCodecContext. The resulting destination codec context will be + * unopened, i.e. you are required to call avcodec_open() before you + * can use this AVCodecContext to decode/encode video/audio data. + * + * @param dest target codec context, should be initialized with + * avcodec_alloc_context3(), but otherwise uninitialized + * @param src source codec context + * @return AVERROR() on error (e.g. memory allocation error), 0 on success + */ +int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src); + +/** + * Set the fields of the given AVFrame to default values. + * + * @param pic The AVFrame of which the fields should be set to default values. + */ +void avcodec_get_frame_defaults(AVFrame *pic); + +/** + * Allocate an AVFrame and set its fields to default values. The resulting + * struct can be deallocated by simply calling av_free(). + * + * @return An AVFrame filled with default values or NULL on failure. + * @see avcodec_get_frame_defaults + */ +AVFrame *avcodec_alloc_frame(void); + +int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic); +void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic); +int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic); + +/** + * Return the amount of padding in pixels which the get_buffer callback must + * provide around the edge of the image for codecs which do not have the + * CODEC_FLAG_EMU_EDGE flag. + * + * @return Required padding in pixels. + */ +unsigned avcodec_get_edge_width(void); +/** + * Modify width and height values so that they will result in a memory + * buffer that is acceptable for the codec if you do not use any horizontal + * padding. + * + * May only be used if a codec with CODEC_CAP_DR1 has been opened. + * If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased + * according to avcodec_get_edge_width() before. + */ +void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height); +/** + * Modify width and height values so that they will result in a memory + * buffer that is acceptable for the codec if you also ensure that all + * line sizes are a multiple of the respective linesize_align[i]. + * + * May only be used if a codec with CODEC_CAP_DR1 has been opened. + * If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased + * according to avcodec_get_edge_width() before. + */ +void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, + int linesize_align[4]); + +enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt); + +#if FF_API_THREAD_INIT +/** + * @deprecated Set s->thread_count before calling avcodec_open() instead of calling this. + */ +attribute_deprecated +int avcodec_thread_init(AVCodecContext *s, int thread_count); +#endif + +int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size); +int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count); +//FIXME func typedef + +#if FF_API_AVCODEC_OPEN +/** + * Initialize the AVCodecContext to use the given AVCodec. Prior to using this + * function the context has to be allocated. + * + * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), + * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for + * retrieving a codec. + * + * @warning This function is not thread safe! + * + * @code + * avcodec_register_all(); + * codec = avcodec_find_decoder(CODEC_ID_H264); + * if (!codec) + * exit(1); + * + * context = avcodec_alloc_context3(codec); + * + * if (avcodec_open(context, codec) < 0) + * exit(1); + * @endcode + * + * @param avctx The context which will be set up to use the given codec. + * @param codec The codec to use within the context. + * @return zero on success, a negative value on error + * @see avcodec_alloc_context3, avcodec_find_decoder, avcodec_find_encoder, avcodec_close + * + * @deprecated use avcodec_open2 + */ +attribute_deprecated +int avcodec_open(AVCodecContext *avctx, AVCodec *codec); +#endif + +/** + * Initialize the AVCodecContext to use the given AVCodec. Prior to using this + * function the context has to be allocated with avcodec_alloc_context(). + * + * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), + * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for + * retrieving a codec. + * + * @warning This function is not thread safe! + * + * @code + * avcodec_register_all(); + * av_dict_set(&opts, "b", "2.5M", 0); + * codec = avcodec_find_decoder(CODEC_ID_H264); + * if (!codec) + * exit(1); + * + * context = avcodec_alloc_context(); + * + * if (avcodec_open(context, codec, opts) < 0) + * exit(1); + * @endcode + * + * @param avctx The context to initialize. + * @param options A dictionary filled with AVCodecContext and codec-private options. + * On return this object will be filled with options that were not found. + * + * @return zero on success, a negative value on error + * @see avcodec_alloc_context3(), avcodec_find_decoder(), avcodec_find_encoder(), + * av_dict_set(), av_opt_find(). + */ +int avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVDictionary **options); + +/** + * Decode the audio frame of size avpkt->size from avpkt->data into samples. + * Some decoders may support multiple frames in a single AVPacket, such + * decoders would then just decode the first frame. In this case, + * avcodec_decode_audio3 has to be called again with an AVPacket that contains + * the remaining data in order to decode the second frame etc. + * If no frame + * could be outputted, frame_size_ptr is zero. Otherwise, it is the + * decompressed frame size in bytes. + * + * @warning You must set frame_size_ptr to the allocated size of the + * output buffer before calling avcodec_decode_audio3(). + * + * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than + * the actual read bytes because some optimized bitstream readers read 32 or 64 + * bits at once and could read over the end. + * + * @warning The end of the input buffer avpkt->data should be set to 0 to ensure that + * no overreading happens for damaged MPEG streams. + * + * @note You might have to align the input buffer avpkt->data and output buffer + * samples. The alignment requirements depend on the CPU: On some CPUs it isn't + * necessary at all, on others it won't work at all if not aligned and on others + * it will work but it will have an impact on performance. + * + * In practice, avpkt->data should have 4 byte alignment at minimum and + * samples should be 16 byte aligned unless the CPU doesn't need it + * (AltiVec and SSE do). + * + * @note Codecs which have the CODEC_CAP_DELAY capability set have a delay + * between input and output, these need to be fed with avpkt->data=NULL, + * avpkt->size=0 at the end to return the remaining frames. + * + * @param avctx the codec context + * @param[out] samples the output buffer, sample type in avctx->sample_fmt + * @param[in,out] frame_size_ptr the output buffer size in bytes + * @param[in] avpkt The input AVPacket containing the input buffer. + * You can create such packet with av_init_packet() and by then setting + * data and size, some decoders might in addition need other fields. + * All decoders are designed to use the least fields possible though. + * @return On error a negative value is returned, otherwise the number of bytes + * used or zero if no frame data was decompressed (used) from the input AVPacket. + */ +int avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples, + int *frame_size_ptr, + AVPacket *avpkt); + +/** + * Decode the video frame of size avpkt->size from avpkt->data into picture. + * Some decoders may support multiple frames in a single AVPacket, such + * decoders would then just decode the first frame. + * + * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than + * the actual read bytes because some optimized bitstream readers read 32 or 64 + * bits at once and could read over the end. + * + * @warning The end of the input buffer buf should be set to 0 to ensure that + * no overreading happens for damaged MPEG streams. + * + * @note You might have to align the input buffer avpkt->data. + * The alignment requirements depend on the CPU: on some CPUs it isn't + * necessary at all, on others it won't work at all if not aligned and on others + * it will work but it will have an impact on performance. + * + * In practice, avpkt->data should have 4 byte alignment at minimum. + * + * @note Codecs which have the CODEC_CAP_DELAY capability set have a delay + * between input and output, these need to be fed with avpkt->data=NULL, + * avpkt->size=0 at the end to return the remaining frames. + * + * @param avctx the codec context + * @param[out] picture The AVFrame in which the decoded video frame will be stored. + * Use avcodec_alloc_frame to get an AVFrame, the codec will + * allocate memory for the actual bitmap. + * with default get/release_buffer(), the decoder frees/reuses the bitmap as it sees fit. + * with overridden get/release_buffer() (needs CODEC_CAP_DR1) the user decides into what buffer the decoder + * decodes and the decoder tells the user once it does not need the data anymore, + * the user app can at this point free/reuse/keep the memory as it sees fit. + * + * @param[in] avpkt The input AVpacket containing the input buffer. + * You can create such packet with av_init_packet() and by then setting + * data and size, some decoders might in addition need other fields like + * flags&AV_PKT_FLAG_KEY. All decoders are designed to use the least + * fields possible. + * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero. + * @return On error a negative value is returned, otherwise the number of bytes + * used or zero if no frame could be decompressed. + */ +int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture, + int *got_picture_ptr, + AVPacket *avpkt); + +/** + * Decode a subtitle message. + * Return a negative value on error, otherwise return the number of bytes used. + * If no subtitle could be decompressed, got_sub_ptr is zero. + * Otherwise, the subtitle is stored in *sub. + * Note that CODEC_CAP_DR1 is not available for subtitle codecs. This is for + * simplicity, because the performance difference is expect to be negligible + * and reusing a get_buffer written for video codecs would probably perform badly + * due to a potentially very different allocation pattern. + * + * @param avctx the codec context + * @param[out] sub The AVSubtitle in which the decoded subtitle will be stored, must be + freed with avsubtitle_free if *got_sub_ptr is set. + * @param[in,out] got_sub_ptr Zero if no subtitle could be decompressed, otherwise, it is nonzero. + * @param[in] avpkt The input AVPacket containing the input buffer. + */ +int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, + int *got_sub_ptr, + AVPacket *avpkt); + +/** + * Frees all allocated data in the given subtitle struct. + * + * @param sub AVSubtitle to free. + */ +void avsubtitle_free(AVSubtitle *sub); + +/** + * Encode an audio frame from samples into buf. + * + * @note The output buffer should be at least FF_MIN_BUFFER_SIZE bytes large. + * However, for PCM audio the user will know how much space is needed + * because it depends on the value passed in buf_size as described + * below. In that case a lower value can be used. + * + * @param avctx the codec context + * @param[out] buf the output buffer + * @param[in] buf_size the output buffer size + * @param[in] samples the input buffer containing the samples + * The number of samples read from this buffer is frame_size*channels, + * both of which are defined in avctx. + * For PCM audio the number of samples read from samples is equal to + * buf_size * input_sample_size / output_sample_size. + * @return On error a negative value is returned, on success zero or the number + * of bytes used to encode the data read from the input buffer. + */ +int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, + const short *samples); + +/** + * Encode a video frame from pict into buf. + * The input picture should be + * stored using a specific format, namely avctx.pix_fmt. + * + * @param avctx the codec context + * @param[out] buf the output buffer for the bitstream of encoded frame + * @param[in] buf_size the size of the output buffer in bytes + * @param[in] pict the input picture to encode + * @return On error a negative value is returned, on success zero or the number + * of bytes used from the output buffer. + */ +int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, + const AVFrame *pict); +int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, + const AVSubtitle *sub); + +int avcodec_close(AVCodecContext *avctx); + +/** + * Register all the codecs, parsers and bitstream filters which were enabled at + * configuration time. If you do not call this function you can select exactly + * which formats you want to support, by using the individual registration + * functions. + * + * @see avcodec_register + * @see av_register_codec_parser + * @see av_register_bitstream_filter + */ +void avcodec_register_all(void); + +/** + * Flush buffers, should be called when seeking or when switching to a different stream. + */ +void avcodec_flush_buffers(AVCodecContext *avctx); + +void avcodec_default_free_buffers(AVCodecContext *s); + +/* misc useful functions */ + +#if FF_API_OLD_FF_PICT_TYPES +/** + * Return a single letter to describe the given picture type pict_type. + * + * @param[in] pict_type the picture type + * @return A single character representing the picture type. + * @deprecated Use av_get_picture_type_char() instead. + */ +attribute_deprecated +char av_get_pict_type_char(int pict_type); +#endif + +/** + * Return codec bits per sample. + * + * @param[in] codec_id the codec + * @return Number of bits per sample or zero if unknown for the given codec. + */ +int av_get_bits_per_sample(enum CodecID codec_id); + +#if FF_API_OLD_SAMPLE_FMT +/** + * @deprecated Use av_get_bytes_per_sample() instead. + */ +attribute_deprecated +int av_get_bits_per_sample_format(enum AVSampleFormat sample_fmt); +#endif + +/* frame parsing */ +typedef struct AVCodecParserContext { + void *priv_data; + struct AVCodecParser *parser; + int64_t frame_offset; /* offset of the current frame */ + int64_t cur_offset; /* current offset + (incremented by each av_parser_parse()) */ + int64_t next_frame_offset; /* offset of the next frame */ + /* video info */ + int pict_type; /* XXX: Put it back in AVCodecContext. */ + /** + * This field is used for proper frame duration computation in lavf. + * It signals, how much longer the frame duration of the current frame + * is compared to normal frame duration. + * + * frame_duration = (1 + repeat_pict) * time_base + * + * It is used by codecs like H.264 to display telecined material. + */ + int repeat_pict; /* XXX: Put it back in AVCodecContext. */ + int64_t pts; /* pts of the current frame */ + int64_t dts; /* dts of the current frame */ + + /* private data */ + int64_t last_pts; + int64_t last_dts; + int fetch_timestamp; + +#define AV_PARSER_PTS_NB 4 + int cur_frame_start_index; + int64_t cur_frame_offset[AV_PARSER_PTS_NB]; + int64_t cur_frame_pts[AV_PARSER_PTS_NB]; + int64_t cur_frame_dts[AV_PARSER_PTS_NB]; + + int flags; +#define PARSER_FLAG_COMPLETE_FRAMES 0x0001 +#define PARSER_FLAG_ONCE 0x0002 +/// Set if the parser has a valid file offset +#define PARSER_FLAG_FETCHED_OFFSET 0x0004 + + int64_t offset; ///< byte offset from starting packet start + int64_t cur_frame_end[AV_PARSER_PTS_NB]; + + /** + * Set by parser to 1 for key frames and 0 for non-key frames. + * It is initialized to -1, so if the parser doesn't set this flag, + * old-style fallback using AV_PICTURE_TYPE_I picture type as key frames + * will be used. + */ + int key_frame; + + /** + * Time difference in stream time base units from the pts of this + * packet to the point at which the output from the decoder has converged + * independent from the availability of previous frames. That is, the + * frames are virtually identical no matter if decoding started from + * the very first frame or from this keyframe. + * Is AV_NOPTS_VALUE if unknown. + * This field is not the display duration of the current frame. + * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY + * set. + * + * The purpose of this field is to allow seeking in streams that have no + * keyframes in the conventional sense. It corresponds to the + * recovery point SEI in H.264 and match_time_delta in NUT. It is also + * essential for some types of subtitle streams to ensure that all + * subtitles are correctly displayed after seeking. + */ + int64_t convergence_duration; + + // Timestamp generation support: + /** + * Synchronization point for start of timestamp generation. + * + * Set to >0 for sync point, 0 for no sync point and <0 for undefined + * (default). + * + * For example, this corresponds to presence of H.264 buffering period + * SEI message. + */ + int dts_sync_point; + + /** + * Offset of the current timestamp against last timestamp sync point in + * units of AVCodecContext.time_base. + * + * Set to INT_MIN when dts_sync_point unused. Otherwise, it must + * contain a valid timestamp offset. + * + * Note that the timestamp of sync point has usually a nonzero + * dts_ref_dts_delta, which refers to the previous sync point. Offset of + * the next frame after timestamp sync point will be usually 1. + * + * For example, this corresponds to H.264 cpb_removal_delay. + */ + int dts_ref_dts_delta; + + /** + * Presentation delay of current frame in units of AVCodecContext.time_base. + * + * Set to INT_MIN when dts_sync_point unused. Otherwise, it must + * contain valid non-negative timestamp delta (presentation time of a frame + * must not lie in the past). + * + * This delay represents the difference between decoding and presentation + * time of the frame. + * + * For example, this corresponds to H.264 dpb_output_delay. + */ + int pts_dts_delta; + + /** + * Position of the packet in file. + * + * Analogous to cur_frame_pts/dts + */ + int64_t cur_frame_pos[AV_PARSER_PTS_NB]; + + /** + * Byte position of currently parsed frame in stream. + */ + int64_t pos; + + /** + * Previous frame byte position. + */ + int64_t last_pos; +} AVCodecParserContext; + +typedef struct AVCodecParser { + int codec_ids[5]; /* several codec IDs are permitted */ + int priv_data_size; + int (*parser_init)(AVCodecParserContext *s); + int (*parser_parse)(AVCodecParserContext *s, + AVCodecContext *avctx, + const uint8_t **poutbuf, int *poutbuf_size, + const uint8_t *buf, int buf_size); + void (*parser_close)(AVCodecParserContext *s); + int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size); + struct AVCodecParser *next; +} AVCodecParser; + +AVCodecParser *av_parser_next(AVCodecParser *c); + +void av_register_codec_parser(AVCodecParser *parser); +AVCodecParserContext *av_parser_init(int codec_id); + +/** + * Parse a packet. + * + * @param s parser context. + * @param avctx codec context. + * @param poutbuf set to pointer to parsed buffer or NULL if not yet finished. + * @param poutbuf_size set to size of parsed buffer or zero if not yet finished. + * @param buf input buffer. + * @param buf_size input length, to signal EOF, this should be 0 (so that the last frame can be output). + * @param pts input presentation timestamp. + * @param dts input decoding timestamp. + * @param pos input byte position in stream. + * @return the number of bytes of the input bitstream used. + * + * Example: + * @code + * while(in_len){ + * len = av_parser_parse2(myparser, AVCodecContext, &data, &size, + * in_data, in_len, + * pts, dts, pos); + * in_data += len; + * in_len -= len; + * + * if(size) + * decode_frame(data, size); + * } + * @endcode + */ +int av_parser_parse2(AVCodecParserContext *s, + AVCodecContext *avctx, + uint8_t **poutbuf, int *poutbuf_size, + const uint8_t *buf, int buf_size, + int64_t pts, int64_t dts, + int64_t pos); + +int av_parser_change(AVCodecParserContext *s, + AVCodecContext *avctx, + uint8_t **poutbuf, int *poutbuf_size, + const uint8_t *buf, int buf_size, int keyframe); +void av_parser_close(AVCodecParserContext *s); + + +typedef struct AVBitStreamFilterContext { + void *priv_data; + struct AVBitStreamFilter *filter; + AVCodecParserContext *parser; + struct AVBitStreamFilterContext *next; +} AVBitStreamFilterContext; + + +typedef struct AVBitStreamFilter { + const char *name; + int priv_data_size; + int (*filter)(AVBitStreamFilterContext *bsfc, + AVCodecContext *avctx, const char *args, + uint8_t **poutbuf, int *poutbuf_size, + const uint8_t *buf, int buf_size, int keyframe); + void (*close)(AVBitStreamFilterContext *bsfc); + struct AVBitStreamFilter *next; +} AVBitStreamFilter; + +void av_register_bitstream_filter(AVBitStreamFilter *bsf); +AVBitStreamFilterContext *av_bitstream_filter_init(const char *name); +int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc, + AVCodecContext *avctx, const char *args, + uint8_t **poutbuf, int *poutbuf_size, + const uint8_t *buf, int buf_size, int keyframe); +void av_bitstream_filter_close(AVBitStreamFilterContext *bsf); + +AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f); + +/* memory */ + +/** + * Reallocate the given block if it is not large enough, otherwise do nothing. + * + * @see av_realloc + */ +void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size); + +/** + * Allocate a buffer, reusing the given one if large enough. + * + * Contrary to av_fast_realloc the current buffer contents might not be + * preserved and on error the old buffer is freed, thus no special + * handling to avoid memleaks is necessary. + * + * @param ptr pointer to pointer to already allocated buffer, overwritten with pointer to new buffer + * @param size size of the buffer *ptr points to + * @param min_size minimum size of *ptr buffer after returning, *ptr will be NULL and + * *size 0 if an error occurred. + */ +void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size); + +/** + * Copy image src to dst. Wraps av_picture_data_copy() above. + */ +void av_picture_copy(AVPicture *dst, const AVPicture *src, + enum PixelFormat pix_fmt, int width, int height); + +/** + * Crop image top and left side. + */ +int av_picture_crop(AVPicture *dst, const AVPicture *src, + enum PixelFormat pix_fmt, int top_band, int left_band); + +/** + * Pad image. + */ +int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, enum PixelFormat pix_fmt, + int padtop, int padbottom, int padleft, int padright, int *color); + +/** + * Encode extradata length to a buffer. Used by xiph codecs. + * + * @param s buffer to write to; must be at least (v/255+1) bytes long + * @param v size of extradata in bytes + * @return number of bytes written to the buffer. + */ +unsigned int av_xiphlacing(unsigned char *s, unsigned int v); + +/** + * Logs a generic warning message about a missing feature. This function is + * intended to be used internally by FFmpeg (libavcodec, libavformat, etc.) + * only, and would normally not be used by applications. + * @param[in] avc a pointer to an arbitrary struct of which the first field is + * a pointer to an AVClass struct + * @param[in] feature string containing the name of the missing feature + * @param[in] want_sample indicates if samples are wanted which exhibit this feature. + * If want_sample is non-zero, additional verbage will be added to the log + * message which tells the user how to report samples to the development + * mailing list. + */ +void av_log_missing_feature(void *avc, const char *feature, int want_sample); + +/** + * Log a generic warning message asking for a sample. This function is + * intended to be used internally by FFmpeg (libavcodec, libavformat, etc.) + * only, and would normally not be used by applications. + * @param[in] avc a pointer to an arbitrary struct of which the first field is + * a pointer to an AVClass struct + * @param[in] msg string containing an optional message, or NULL if no message + */ +void av_log_ask_for_sample(void *avc, const char *msg, ...) av_printf_format(2, 3); + +/** + * Register the hardware accelerator hwaccel. + */ +void av_register_hwaccel(AVHWAccel *hwaccel); + +/** + * If hwaccel is NULL, returns the first registered hardware accelerator, + * if hwaccel is non-NULL, returns the next registered hardware accelerator + * after hwaccel, or NULL if hwaccel is the last one. + */ +AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel); + + +/** + * Lock operation used by lockmgr + */ +enum AVLockOp { + AV_LOCK_CREATE, ///< Create a mutex + AV_LOCK_OBTAIN, ///< Lock the mutex + AV_LOCK_RELEASE, ///< Unlock the mutex + AV_LOCK_DESTROY, ///< Free mutex resources +}; + +/** + * Register a user provided lock manager supporting the operations + * specified by AVLockOp. mutex points to a (void *) where the + * lockmgr should store/get a pointer to a user allocated mutex. It's + * NULL upon AV_LOCK_CREATE and != NULL for all other ops. + * + * @param cb User defined callback. Note: FFmpeg may invoke calls to this + * callback during the call to av_lockmgr_register(). + * Thus, the application must be prepared to handle that. + * If cb is set to NULL the lockmgr will be unregistered. + * Also note that during unregistration the previously registered + * lockmgr callback may also be invoked. + */ +int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op)); + +/** + * Get the type of the given codec. + */ +enum AVMediaType avcodec_get_type(enum CodecID codec_id); + +/** + * Get the AVClass for AVCodecContext. It can be used in combination with + * AV_OPT_SEARCH_FAKE_OBJ for examining options. + * + * @see av_opt_find(). + */ +const AVClass *avcodec_get_class(void); + +#endif /* AVCODEC_AVCODEC_H */ diff --git a/ffmpeg 0.8/include/libavcodec/avfft.h b/ffmpeg 0.8/include/libavcodec/avfft.h new file mode 100644 index 000000000..be2d9c7e1 --- /dev/null +++ b/ffmpeg 0.8/include/libavcodec/avfft.h @@ -0,0 +1,99 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_AVFFT_H +#define AVCODEC_AVFFT_H + +typedef float FFTSample; + +typedef struct FFTComplex { + FFTSample re, im; +} FFTComplex; + +typedef struct FFTContext FFTContext; + +/** + * Set up a complex FFT. + * @param nbits log2 of the length of the input array + * @param inverse if 0 perform the forward transform, if 1 perform the inverse + */ +FFTContext *av_fft_init(int nbits, int inverse); + +/** + * Do the permutation needed BEFORE calling ff_fft_calc(). + */ +void av_fft_permute(FFTContext *s, FFTComplex *z); + +/** + * Do a complex FFT with the parameters defined in av_fft_init(). The + * input data must be permuted before. No 1.0/sqrt(n) normalization is done. + */ +void av_fft_calc(FFTContext *s, FFTComplex *z); + +void av_fft_end(FFTContext *s); + +FFTContext *av_mdct_init(int nbits, int inverse, double scale); +void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input); +void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input); +void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input); +void av_mdct_end(FFTContext *s); + +/* Real Discrete Fourier Transform */ + +enum RDFTransformType { + DFT_R2C, + IDFT_C2R, + IDFT_R2C, + DFT_C2R, +}; + +typedef struct RDFTContext RDFTContext; + +/** + * Set up a real FFT. + * @param nbits log2 of the length of the input array + * @param trans the type of transform + */ +RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans); +void av_rdft_calc(RDFTContext *s, FFTSample *data); +void av_rdft_end(RDFTContext *s); + +/* Discrete Cosine Transform */ + +typedef struct DCTContext DCTContext; + +enum DCTTransformType { + DCT_II = 0, + DCT_III, + DCT_I, + DST_I, +}; + +/** + * Set up DCT. + * @param nbits size of the input array: + * (1 << nbits) for DCT-II, DCT-III and DST-I + * (1 << nbits) + 1 for DCT-I + * + * @note the first element of the input of DST-I is ignored + */ +DCTContext *av_dct_init(int nbits, enum DCTTransformType type); +void av_dct_calc(DCTContext *s, FFTSample *data); +void av_dct_end (DCTContext *s); + +#endif /* AVCODEC_AVFFT_H */ diff --git a/ffmpeg 0.8/include/libavcodec/dxva2.h b/ffmpeg 0.8/include/libavcodec/dxva2.h new file mode 100644 index 000000000..6eb494b9f --- /dev/null +++ b/ffmpeg 0.8/include/libavcodec/dxva2.h @@ -0,0 +1,70 @@ +/* + * DXVA2 HW acceleration + * + * copyright (c) 2009 Laurent Aimar + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_DXVA_H +#define AVCODEC_DXVA_H + +#include + +#include + +#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards + +/** + * This structure is used to provides the necessary configurations and data + * to the DXVA2 FFmpeg HWAccel implementation. + * + * The application must make it available as AVCodecContext.hwaccel_context. + */ +struct dxva_context { + /** + * DXVA2 decoder object + */ + IDirectXVideoDecoder *decoder; + + /** + * DXVA2 configuration used to create the decoder + */ + const DXVA2_ConfigPictureDecode *cfg; + + /** + * The number of surface in the surface array + */ + unsigned surface_count; + + /** + * The array of Direct3D surfaces used to create the decoder + */ + LPDIRECT3DSURFACE9 *surface; + + /** + * A bit field configuring the workarounds needed for using the decoder + */ + uint64_t workaround; + + /** + * Private to the FFmpeg AVHWAccel implementation + */ + unsigned report_id; +}; + +#endif /* AVCODEC_DXVA_H */ diff --git a/ffmpeg 0.8/include/libavcodec/opt.h b/ffmpeg 0.8/include/libavcodec/opt.h new file mode 100644 index 000000000..2380e7433 --- /dev/null +++ b/ffmpeg 0.8/include/libavcodec/opt.h @@ -0,0 +1,34 @@ +/* + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * This header is provided for compatibility only and will be removed + * on next major bump + */ + +#ifndef AVCODEC_OPT_H +#define AVCODEC_OPT_H + +#include "libavcodec/version.h" + +#if FF_API_OPT_H +#include "libavutil/opt.h" +#endif + +#endif /* AVCODEC_OPT_H */ diff --git a/ffmpeg 0.8/include/libavcodec/vaapi.h b/ffmpeg 0.8/include/libavcodec/vaapi.h new file mode 100644 index 000000000..4c3bb9bb5 --- /dev/null +++ b/ffmpeg 0.8/include/libavcodec/vaapi.h @@ -0,0 +1,167 @@ +/* + * Video Acceleration API (shared data between FFmpeg and the video player) + * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1 + * + * Copyright (C) 2008-2009 Splitted-Desktop Systems + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_VAAPI_H +#define AVCODEC_VAAPI_H + +#include + +/** + * @defgroup VAAPI_Decoding VA API Decoding + * @ingroup Decoder + * @{ + */ + +/** + * This structure is used to share data between the FFmpeg library and + * the client video application. + * This shall be zero-allocated and available as + * AVCodecContext.hwaccel_context. All user members can be set once + * during initialization or through each AVCodecContext.get_buffer() + * function call. In any case, they must be valid prior to calling + * decoding functions. + */ +struct vaapi_context { + /** + * Window system dependent data + * + * - encoding: unused + * - decoding: Set by user + */ + void *display; + + /** + * Configuration ID + * + * - encoding: unused + * - decoding: Set by user + */ + uint32_t config_id; + + /** + * Context ID (video decode pipeline) + * + * - encoding: unused + * - decoding: Set by user + */ + uint32_t context_id; + + /** + * VAPictureParameterBuffer ID + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + uint32_t pic_param_buf_id; + + /** + * VAIQMatrixBuffer ID + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + uint32_t iq_matrix_buf_id; + + /** + * VABitPlaneBuffer ID (for VC-1 decoding) + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + uint32_t bitplane_buf_id; + + /** + * Slice parameter/data buffer IDs + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + uint32_t *slice_buf_ids; + + /** + * Number of effective slice buffer IDs to send to the HW + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + unsigned int n_slice_buf_ids; + + /** + * Size of pre-allocated slice_buf_ids + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + unsigned int slice_buf_ids_alloc; + + /** + * Pointer to VASliceParameterBuffers + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + void *slice_params; + + /** + * Size of a VASliceParameterBuffer element + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + unsigned int slice_param_size; + + /** + * Size of pre-allocated slice_params + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + unsigned int slice_params_alloc; + + /** + * Number of slices currently filled in + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + unsigned int slice_count; + + /** + * Pointer to slice data buffer base + * - encoding: unused + * - decoding: Set by libavcodec + */ + const uint8_t *slice_data; + + /** + * Current size of slice data + * + * - encoding: unused + * - decoding: Set by libavcodec + */ + uint32_t slice_data_size; +}; + +/* @} */ + +#endif /* AVCODEC_VAAPI_H */ diff --git a/ffmpeg 0.8/include/libavcodec/vda.h b/ffmpeg 0.8/include/libavcodec/vda.h new file mode 100644 index 000000000..5ff8070fd --- /dev/null +++ b/ffmpeg 0.8/include/libavcodec/vda.h @@ -0,0 +1,168 @@ +/* + * VDA HW acceleration + * + * copyright (c) 2011 Sebastien Zwickert + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_VDA_H +#define AVCODEC_VDA_H + +#include + +// emmintrin.h is unable to compile with -std=c99 -Werror=missing-prototypes +// http://openradar.appspot.com/8026390 +#undef __GNUC_STDC_INLINE__ + +#define Picture QuickdrawPicture +#include +#undef Picture + +/** + * This structure is used to store a decoded frame information and data. + */ +typedef struct { + /** + * The PTS of the frame. + * + * - encoding: unused + * - decoding: Set/Unset by libavcodec. + */ + int64_t pts; + + /** + * The CoreVideo buffer that contains the decoded data. + * + * - encoding: unused + * - decoding: Set/Unset by libavcodec. + */ + CVPixelBufferRef cv_buffer; + + /** + * A pointer to the next frame. + * + * - encoding: unused + * - decoding: Set/Unset by libavcodec. + */ + struct vda_frame *next_frame; + +} vda_frame; + +/** + * This structure is used to provide the necessary configurations and data + * to the VDA FFmpeg HWAccel implementation. + * + * The application must make it available as AVCodecContext.hwaccel_context. + */ +struct vda_context { + /** + * VDA decoder object. + * + * - encoding: unused + * - decoding: Set/Unset by libavcodec. + */ + VDADecoder decoder; + + /** + * VDA frames queue ordered by presentation timestamp. + * + * - encoding: unused + * - decoding: Set/Unset by libavcodec. + */ + vda_frame *queue; + + /** + * Mutex for locking queue operations. + * + * - encoding: unused + * - decoding: Set/Unset by libavcodec. + */ + void *queue_mutex; + + /** + * The frame width. + * + * - encoding: unused + * - decoding: Set/Unset by user. + */ + int width; + + /** + * The frame height. + * + * - encoding: unused + * - decoding: Set/Unset by user. + */ + int height; + + /** + * The frame format. + * + * - encoding: unused + * - decoding: Set/Unset by user. + */ + int format; + + /** + * The pixel format for output image buffers. + * + * - encoding: unused + * - decoding: Set/Unset by user. + */ + OSType cv_pix_fmt_type; + + /** + * The current bitstream buffer. + * + * - encoding: unused + * - decoding: Set/Unset by libavcodec. + */ + uint8_t *bitstream; + + /** + * The current size of the bitstream. + * + * - encoding: unused + * - decoding: Set/Unset by libavcodec. + */ + int bitstream_size; + + /** + * The reference size used for fast reallocation. + * + * - encoding: unused + * - decoding: Set/Unset by libavcodec. + */ + int ref_size; +}; + +/** Creates the video decoder. */ +int ff_vda_create_decoder(struct vda_context *vda_ctx, + uint8_t *extradata, + int extradata_size); + +/** Destroys the video decoder. */ +int ff_vda_destroy_decoder(struct vda_context *vda_ctx); + +/** Returns the top frame of the queue. */ +vda_frame *ff_vda_queue_pop(struct vda_context *vda_ctx); + +/** Releases the given frame. */ +void ff_vda_release_vda_frame(vda_frame *frame); + +#endif /* AVCODEC_VDA_H */ diff --git a/ffmpeg 0.8/include/libavcodec/vdpau.h b/ffmpeg 0.8/include/libavcodec/vdpau.h new file mode 100644 index 000000000..f3a547184 --- /dev/null +++ b/ffmpeg 0.8/include/libavcodec/vdpau.h @@ -0,0 +1,88 @@ +/* + * The Video Decode and Presentation API for UNIX (VDPAU) is used for + * hardware-accelerated decoding of MPEG-1/2, H.264 and VC-1. + * + * Copyright (C) 2008 NVIDIA + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_VDPAU_H +#define AVCODEC_VDPAU_H + +/** + * @defgroup Decoder VDPAU Decoder and Renderer + * + * VDPAU hardware acceleration has two modules + * - VDPAU decoding + * - VDPAU presentation + * + * The VDPAU decoding module parses all headers using FFmpeg + * parsing mechanisms and uses VDPAU for the actual decoding. + * + * As per the current implementation, the actual decoding + * and rendering (API calls) are done as part of the VDPAU + * presentation (vo_vdpau.c) module. + * + * @defgroup VDPAU_Decoding VDPAU Decoding + * @ingroup Decoder + * @{ + */ + +#include +#include + +/** @brief The videoSurface is used for rendering. */ +#define FF_VDPAU_STATE_USED_FOR_RENDER 1 + +/** + * @brief The videoSurface is needed for reference/prediction. + * The codec manipulates this. + */ +#define FF_VDPAU_STATE_USED_FOR_REFERENCE 2 + +/** + * @brief This structure is used as a callback between the FFmpeg + * decoder (vd_) and presentation (vo_) module. + * This is used for defining a video frame containing surface, + * picture parameter, bitstream information etc which are passed + * between the FFmpeg decoder and its clients. + */ +struct vdpau_render_state { + VdpVideoSurface surface; ///< Used as rendered surface, never changed. + + int state; ///< Holds FF_VDPAU_STATE_* values. + + /** Describe size/location of the compressed video data. + Set to 0 when freeing bitstream_buffers. */ + int bitstream_buffers_allocated; + int bitstream_buffers_used; + /** The user is responsible for freeing this buffer using av_freep(). */ + VdpBitstreamBuffer *bitstream_buffers; + + /** picture parameter information for all supported codecs */ + union VdpPictureInfo { + VdpPictureInfoH264 h264; + VdpPictureInfoMPEG1Or2 mpeg; + VdpPictureInfoVC1 vc1; + VdpPictureInfoMPEG4Part2 mpeg4; + } info; +}; + +/* @}*/ + +#endif /* AVCODEC_VDPAU_H */ diff --git a/ffmpeg 0.8/include/libavcodec/version.h b/ffmpeg 0.8/include/libavcodec/version.h new file mode 100644 index 000000000..a2d96a490 --- /dev/null +++ b/ffmpeg 0.8/include/libavcodec/version.h @@ -0,0 +1,111 @@ +/* + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_VERSION_H +#define AVCODEC_VERSION_H + +#define LIBAVCODEC_VERSION_MAJOR 53 +#define LIBAVCODEC_VERSION_MINOR 36 +#define LIBAVCODEC_VERSION_MICRO 0 + +#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ + LIBAVCODEC_VERSION_MINOR, \ + LIBAVCODEC_VERSION_MICRO) +#define LIBAVCODEC_VERSION AV_VERSION(LIBAVCODEC_VERSION_MAJOR, \ + LIBAVCODEC_VERSION_MINOR, \ + LIBAVCODEC_VERSION_MICRO) +#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT + +#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION) + +/** + * Those FF_API_* defines are not part of public API. + * They may change, break or disappear at any time. + */ +#ifndef FF_API_PALETTE_CONTROL +#define FF_API_PALETTE_CONTROL (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_OLD_SAMPLE_FMT +#define FF_API_OLD_SAMPLE_FMT (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_OLD_AUDIOCONVERT +#define FF_API_OLD_AUDIOCONVERT (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_ANTIALIAS_ALGO +#define FF_API_ANTIALIAS_ALGO (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_REQUEST_CHANNELS +#define FF_API_REQUEST_CHANNELS (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_OPT_H +#define FF_API_OPT_H (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_THREAD_INIT +#define FF_API_THREAD_INIT (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_OLD_FF_PICT_TYPES +#define FF_API_OLD_FF_PICT_TYPES (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_FLAC_GLOBAL_OPTS +#define FF_API_FLAC_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_GET_PIX_FMT_NAME +#define FF_API_GET_PIX_FMT_NAME (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_ALLOC_CONTEXT +#define FF_API_ALLOC_CONTEXT (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_AVCODEC_OPEN +#define FF_API_AVCODEC_OPEN (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_DRC_SCALE +#define FF_API_DRC_SCALE (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_ER +#define FF_API_ER (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_AVCODEC_INIT +#define FF_API_AVCODEC_INIT (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_X264_GLOBAL_OPTS +#define FF_API_X264_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_MPEGVIDEO_GLOBAL_OPTS +#define FF_API_MPEGVIDEO_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_LAME_GLOBAL_OPTS +#define FF_API_LAME_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_SNOW_GLOBAL_OPTS +#define FF_API_SNOW_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_MJPEG_GLOBAL_OPTS +#define FF_API_MJPEG_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_GET_ALPHA_INFO +#define FF_API_GET_ALPHA_INFO (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_PARSE_FRAME +#define FF_API_PARSE_FRAME (LIBAVCODEC_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_INTERNAL_CONTEXT +#define FF_API_INTERNAL_CONTEXT (LIBAVCODEC_VERSION_MAJOR < 54) +#endif + +#endif /* AVCODEC_VERSION_H */ diff --git a/ffmpeg 0.8/include/libavcodec/xvmc.h b/ffmpeg 0.8/include/libavcodec/xvmc.h new file mode 100644 index 000000000..93ad8bb9a --- /dev/null +++ b/ffmpeg 0.8/include/libavcodec/xvmc.h @@ -0,0 +1,151 @@ +/* + * Copyright (C) 2003 Ivan Kalvachev + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_XVMC_H +#define AVCODEC_XVMC_H + +#include + +#include "avcodec.h" + +#define AV_XVMC_ID 0x1DC711C0 /**< special value to ensure that regular pixel routines haven't corrupted the struct + the number is 1337 speak for the letters IDCT MCo (motion compensation) */ + +struct xvmc_pix_fmt { + /** The field contains the special constant value AV_XVMC_ID. + It is used as a test that the application correctly uses the API, + and that there is no corruption caused by pixel routines. + - application - set during initialization + - libavcodec - unchanged + */ + int xvmc_id; + + /** Pointer to the block array allocated by XvMCCreateBlocks(). + The array has to be freed by XvMCDestroyBlocks(). + Each group of 64 values represents one data block of differential + pixel information (in MoCo mode) or coefficients for IDCT. + - application - set the pointer during initialization + - libavcodec - fills coefficients/pixel data into the array + */ + short* data_blocks; + + /** Pointer to the macroblock description array allocated by + XvMCCreateMacroBlocks() and freed by XvMCDestroyMacroBlocks(). + - application - set the pointer during initialization + - libavcodec - fills description data into the array + */ + XvMCMacroBlock* mv_blocks; + + /** Number of macroblock descriptions that can be stored in the mv_blocks + array. + - application - set during initialization + - libavcodec - unchanged + */ + int allocated_mv_blocks; + + /** Number of blocks that can be stored at once in the data_blocks array. + - application - set during initialization + - libavcodec - unchanged + */ + int allocated_data_blocks; + + /** Indicate that the hardware would interpret data_blocks as IDCT + coefficients and perform IDCT on them. + - application - set during initialization + - libavcodec - unchanged + */ + int idct; + + /** In MoCo mode it indicates that intra macroblocks are assumed to be in + unsigned format; same as the XVMC_INTRA_UNSIGNED flag. + - application - set during initialization + - libavcodec - unchanged + */ + int unsigned_intra; + + /** Pointer to the surface allocated by XvMCCreateSurface(). + It has to be freed by XvMCDestroySurface() on application exit. + It identifies the frame and its state on the video hardware. + - application - set during initialization + - libavcodec - unchanged + */ + XvMCSurface* p_surface; + +/** Set by the decoder before calling ff_draw_horiz_band(), + needed by the XvMCRenderSurface function. */ +//@{ + /** Pointer to the surface used as past reference + - application - unchanged + - libavcodec - set + */ + XvMCSurface* p_past_surface; + + /** Pointer to the surface used as future reference + - application - unchanged + - libavcodec - set + */ + XvMCSurface* p_future_surface; + + /** top/bottom field or frame + - application - unchanged + - libavcodec - set + */ + unsigned int picture_structure; + + /** XVMC_SECOND_FIELD - 1st or 2nd field in the sequence + - application - unchanged + - libavcodec - set + */ + unsigned int flags; +//}@ + + /** Number of macroblock descriptions in the mv_blocks array + that have already been passed to the hardware. + - application - zeroes it on get_buffer(). + A successful ff_draw_horiz_band() may increment it + with filled_mb_block_num or zero both. + - libavcodec - unchanged + */ + int start_mv_blocks_num; + + /** Number of new macroblock descriptions in the mv_blocks array (after + start_mv_blocks_num) that are filled by libavcodec and have to be + passed to the hardware. + - application - zeroes it on get_buffer() or after successful + ff_draw_horiz_band(). + - libavcodec - increment with one of each stored MB + */ + int filled_mv_blocks_num; + + /** Number of the the next free data block; one data block consists of + 64 short values in the data_blocks array. + All blocks before this one have already been claimed by placing their + position into the corresponding block description structure field, + that are part of the mv_blocks array. + - application - zeroes it on get_buffer(). + A successful ff_draw_horiz_band() may zero it together + with start_mb_blocks_num. + - libavcodec - each decoded macroblock increases it by the number + of coded blocks it contains. + */ + int next_free_data_block_num; +}; + +#endif /* AVCODEC_XVMC_H */ diff --git a/ffmpeg 0.8/include/libavdevice/avdevice.h b/ffmpeg 0.8/include/libavdevice/avdevice.h new file mode 100644 index 000000000..68e3a46a8 --- /dev/null +++ b/ffmpeg 0.8/include/libavdevice/avdevice.h @@ -0,0 +1,63 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVDEVICE_AVDEVICE_H +#define AVDEVICE_AVDEVICE_H + +#include "libavutil/avutil.h" +#include "libavformat/avformat.h" + +#define LIBAVDEVICE_VERSION_MAJOR 53 +#define LIBAVDEVICE_VERSION_MINOR 4 +#define LIBAVDEVICE_VERSION_MICRO 0 + +#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \ + LIBAVDEVICE_VERSION_MINOR, \ + LIBAVDEVICE_VERSION_MICRO) +#define LIBAVDEVICE_VERSION AV_VERSION(LIBAVDEVICE_VERSION_MAJOR, \ + LIBAVDEVICE_VERSION_MINOR, \ + LIBAVDEVICE_VERSION_MICRO) +#define LIBAVDEVICE_BUILD LIBAVDEVICE_VERSION_INT + +#ifndef FF_API_V4L +#define FF_API_V4L (LIBAVDEVICE_VERSION_MAJOR < 54) +#endif + +/** + * Return the LIBAVDEVICE_VERSION_INT constant. + */ +unsigned avdevice_version(void); + +/** + * Return the libavdevice build-time configuration. + */ +const char *avdevice_configuration(void); + +/** + * Return the libavdevice license. + */ +const char *avdevice_license(void); + +/** + * Initialize libavdevice and register all the input and output devices. + * @warning This function is not thread safe. + */ +void avdevice_register_all(void); + +#endif /* AVDEVICE_AVDEVICE_H */ + diff --git a/ffmpeg 0.8/include/libavfilter/avcodec.h b/ffmpeg 0.8/include/libavfilter/avcodec.h new file mode 100644 index 000000000..dec5ae4a7 --- /dev/null +++ b/ffmpeg 0.8/include/libavfilter/avcodec.h @@ -0,0 +1,71 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVFILTER_AVCODEC_H +#define AVFILTER_AVCODEC_H + +/** + * @file + * libavcodec/libavfilter gluing utilities + * + * This should be included in an application ONLY if the installed + * libavfilter has been compiled with libavcodec support, otherwise + * symbols defined below will not be available. + */ + +#include "libavcodec/avcodec.h" // AVFrame +#include "avfilter.h" +#include "vsrc_buffer.h" + +/** + * Copy the frame properties of src to dst, without copying the actual + * image data. + */ +void avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src); + +/** + * Create and return a picref reference from the data and properties + * contained in frame. + * + * @param perms permissions to assign to the new buffer reference + */ +AVFilterBufferRef *avfilter_get_video_buffer_ref_from_frame(const AVFrame *frame, int perms); + +/** + * Fill an AVFrame with the information stored in picref. + * + * @param frame an already allocated AVFrame + * @param picref a video buffer reference + * @return 0 in case of success, a negative AVERROR code in case of + * failure + */ +int avfilter_fill_frame_from_video_buffer_ref(AVFrame *frame, + const AVFilterBufferRef *picref); + +/** + * Add frame data to buffer_src. + * + * @param buffer_src pointer to a buffer source context + * @param flags a combination of AV_VSRC_BUF_FLAG_* flags + * @return >= 0 in case of success, a negative AVERROR code in case of + * failure + */ +int av_vsrc_buffer_add_frame(AVFilterContext *buffer_src, + const AVFrame *frame, int flags); + +#endif /* AVFILTER_AVCODEC_H */ diff --git a/ffmpeg 0.8/include/libavfilter/avfilter.h b/ffmpeg 0.8/include/libavfilter/avfilter.h new file mode 100644 index 000000000..5e1cfdba7 --- /dev/null +++ b/ffmpeg 0.8/include/libavfilter/avfilter.h @@ -0,0 +1,958 @@ +/* + * filter layer + * Copyright (c) 2007 Bobby Bingham + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVFILTER_AVFILTER_H +#define AVFILTER_AVFILTER_H + +#include "libavutil/avutil.h" +#include "libavutil/log.h" +#include "libavutil/samplefmt.h" +#include "libavutil/pixfmt.h" +#include "libavutil/rational.h" + +#define LIBAVFILTER_VERSION_MAJOR 2 +#define LIBAVFILTER_VERSION_MINOR 49 +#define LIBAVFILTER_VERSION_MICRO 0 + +#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ + LIBAVFILTER_VERSION_MINOR, \ + LIBAVFILTER_VERSION_MICRO) +#define LIBAVFILTER_VERSION AV_VERSION(LIBAVFILTER_VERSION_MAJOR, \ + LIBAVFILTER_VERSION_MINOR, \ + LIBAVFILTER_VERSION_MICRO) +#define LIBAVFILTER_BUILD LIBAVFILTER_VERSION_INT + +#ifndef FF_API_OLD_VSINK_API +#define FF_API_OLD_VSINK_API (LIBAVFILTER_VERSION_MAJOR < 3) +#endif +#ifndef FF_API_OLD_ALL_FORMATS_API +#define FF_API_OLD_ALL_FORMATS_API (LIBAVFILTER_VERSION_MAJOR < 3) +#endif + +#include + +/** + * Return the LIBAVFILTER_VERSION_INT constant. + */ +unsigned avfilter_version(void); + +/** + * Return the libavfilter build-time configuration. + */ +const char *avfilter_configuration(void); + +/** + * Return the libavfilter license. + */ +const char *avfilter_license(void); + + +typedef struct AVFilterContext AVFilterContext; +typedef struct AVFilterLink AVFilterLink; +typedef struct AVFilterPad AVFilterPad; + +/** + * A reference-counted buffer data type used by the filter system. Filters + * should not store pointers to this structure directly, but instead use the + * AVFilterBufferRef structure below. + */ +typedef struct AVFilterBuffer { + uint8_t *data[8]; ///< buffer data for each plane/channel + int linesize[8]; ///< number of bytes per line + + unsigned refcount; ///< number of references to this buffer + + /** private data to be used by a custom free function */ + void *priv; + /** + * A pointer to the function to deallocate this buffer if the default + * function is not sufficient. This could, for example, add the memory + * back into a memory pool to be reused later without the overhead of + * reallocating it from scratch. + */ + void (*free)(struct AVFilterBuffer *buf); + + int format; ///< media format + int w, h; ///< width and height of the allocated buffer +} AVFilterBuffer; + +#define AV_PERM_READ 0x01 ///< can read from the buffer +#define AV_PERM_WRITE 0x02 ///< can write to the buffer +#define AV_PERM_PRESERVE 0x04 ///< nobody else can overwrite the buffer +#define AV_PERM_REUSE 0x08 ///< can output the buffer multiple times, with the same contents each time +#define AV_PERM_REUSE2 0x10 ///< can output the buffer multiple times, modified each time +#define AV_PERM_NEG_LINESIZES 0x20 ///< the buffer requested can have negative linesizes +#define AV_PERM_ALIGN 0x40 ///< the buffer must be aligned + +#define AVFILTER_ALIGN 16 //not part of ABI + +/** + * Audio specific properties in a reference to an AVFilterBuffer. Since + * AVFilterBufferRef is common to different media formats, audio specific + * per reference properties must be separated out. + */ +typedef struct AVFilterBufferRefAudioProps { + int64_t channel_layout; ///< channel layout of audio buffer + int nb_samples; ///< number of audio samples per channel + int sample_rate; ///< audio buffer sample rate + int planar; ///< audio buffer - planar or packed +} AVFilterBufferRefAudioProps; + +/** + * Video specific properties in a reference to an AVFilterBuffer. Since + * AVFilterBufferRef is common to different media formats, video specific + * per reference properties must be separated out. + */ +typedef struct AVFilterBufferRefVideoProps { + int w; ///< image width + int h; ///< image height + AVRational sample_aspect_ratio; ///< sample aspect ratio + int interlaced; ///< is frame interlaced + int top_field_first; ///< field order + enum AVPictureType pict_type; ///< picture type of the frame + int key_frame; ///< 1 -> keyframe, 0-> not +} AVFilterBufferRefVideoProps; + +/** + * A reference to an AVFilterBuffer. Since filters can manipulate the origin of + * a buffer to, for example, crop image without any memcpy, the buffer origin + * and dimensions are per-reference properties. Linesize is also useful for + * image flipping, frame to field filters, etc, and so is also per-reference. + * + * TODO: add anything necessary for frame reordering + */ +typedef struct AVFilterBufferRef { + AVFilterBuffer *buf; ///< the buffer that this is a reference to + uint8_t *data[8]; ///< picture/audio data for each plane + int linesize[8]; ///< number of bytes per line + int format; ///< media format + + /** + * presentation timestamp. The time unit may change during + * filtering, as it is specified in the link and the filter code + * may need to rescale the PTS accordingly. + */ + int64_t pts; + int64_t pos; ///< byte position in stream, -1 if unknown + + int perms; ///< permissions, see the AV_PERM_* flags + + enum AVMediaType type; ///< media type of buffer data + AVFilterBufferRefVideoProps *video; ///< video buffer specific properties + AVFilterBufferRefAudioProps *audio; ///< audio buffer specific properties +} AVFilterBufferRef; + +/** + * Copy properties of src to dst, without copying the actual data + */ +static inline void avfilter_copy_buffer_ref_props(AVFilterBufferRef *dst, AVFilterBufferRef *src) +{ + // copy common properties + dst->pts = src->pts; + dst->pos = src->pos; + + switch (src->type) { + case AVMEDIA_TYPE_VIDEO: *dst->video = *src->video; break; + case AVMEDIA_TYPE_AUDIO: *dst->audio = *src->audio; break; + default: break; + } +} + +/** + * Add a new reference to a buffer. + * + * @param ref an existing reference to the buffer + * @param pmask a bitmask containing the allowable permissions in the new + * reference + * @return a new reference to the buffer with the same properties as the + * old, excluding any permissions denied by pmask + */ +AVFilterBufferRef *avfilter_ref_buffer(AVFilterBufferRef *ref, int pmask); + +/** + * Remove a reference to a buffer. If this is the last reference to the + * buffer, the buffer itself is also automatically freed. + * + * @param ref reference to the buffer, may be NULL + */ +void avfilter_unref_buffer(AVFilterBufferRef *ref); + +/** + * A list of supported formats for one end of a filter link. This is used + * during the format negotiation process to try to pick the best format to + * use to minimize the number of necessary conversions. Each filter gives a + * list of the formats supported by each input and output pad. The list + * given for each pad need not be distinct - they may be references to the + * same list of formats, as is often the case when a filter supports multiple + * formats, but will always output the same format as it is given in input. + * + * In this way, a list of possible input formats and a list of possible + * output formats are associated with each link. When a set of formats is + * negotiated over a link, the input and output lists are merged to form a + * new list containing only the common elements of each list. In the case + * that there were no common elements, a format conversion is necessary. + * Otherwise, the lists are merged, and all other links which reference + * either of the format lists involved in the merge are also affected. + * + * For example, consider the filter chain: + * filter (a) --> (b) filter (b) --> (c) filter + * + * where the letters in parenthesis indicate a list of formats supported on + * the input or output of the link. Suppose the lists are as follows: + * (a) = {A, B} + * (b) = {A, B, C} + * (c) = {B, C} + * + * First, the first link's lists are merged, yielding: + * filter (a) --> (a) filter (a) --> (c) filter + * + * Notice that format list (b) now refers to the same list as filter list (a). + * Next, the lists for the second link are merged, yielding: + * filter (a) --> (a) filter (a) --> (a) filter + * + * where (a) = {B}. + * + * Unfortunately, when the format lists at the two ends of a link are merged, + * we must ensure that all links which reference either pre-merge format list + * get updated as well. Therefore, we have the format list structure store a + * pointer to each of the pointers to itself. + */ +typedef struct AVFilterFormats { + unsigned format_count; ///< number of formats + int64_t *formats; ///< list of media formats + + unsigned refcount; ///< number of references to this list + struct AVFilterFormats ***refs; ///< references to this list +} AVFilterFormats; + +/** + * Create a list of supported formats. This is intended for use in + * AVFilter->query_formats(). + * + * @param fmts list of media formats, terminated by -1. If NULL an + * empty list is created. + * @return the format list, with no existing references + */ +AVFilterFormats *avfilter_make_format_list(const int *fmts); +AVFilterFormats *avfilter_make_format64_list(const int64_t *fmts); + +/** + * Add fmt to the list of media formats contained in *avff. + * If *avff is NULL the function allocates the filter formats struct + * and puts its pointer in *avff. + * + * @return a non negative value in case of success, or a negative + * value corresponding to an AVERROR code in case of error + */ +int avfilter_add_format(AVFilterFormats **avff, int64_t fmt); + +#if FF_API_OLD_ALL_FORMATS_API +/** + * @deprecated Use avfilter_make_all_formats() instead. + */ +attribute_deprecated +AVFilterFormats *avfilter_all_formats(enum AVMediaType type); +#endif + +/** + * Return a list of all formats supported by FFmpeg for the given media type. + */ +AVFilterFormats *avfilter_make_all_formats(enum AVMediaType type); + +/** + * A list of all channel layouts supported by libavfilter. + */ +extern const int64_t avfilter_all_channel_layouts[]; + +/** + * Return a list of all channel layouts supported by FFmpeg. + */ +AVFilterFormats *avfilter_make_all_channel_layouts(void); + +/** + * Return a list of all audio packing formats. + */ +AVFilterFormats *avfilter_make_all_packing_formats(void); + +/** + * Return a format list which contains the intersection of the formats of + * a and b. Also, all the references of a, all the references of b, and + * a and b themselves will be deallocated. + * + * If a and b do not share any common formats, neither is modified, and NULL + * is returned. + */ +AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b); + +/** + * Add *ref as a new reference to formats. + * That is the pointers will point like in the ASCII art below: + * ________ + * |formats |<--------. + * | ____ | ____|___________________ + * | |refs| | | __|_ + * | |* * | | | | | | AVFilterLink + * | |* *--------->|*ref| + * | |____| | | |____| + * |________| |________________________ + */ +void avfilter_formats_ref(AVFilterFormats *formats, AVFilterFormats **ref); + +/** + * If *ref is non-NULL, remove *ref as a reference to the format list + * it currently points to, deallocates that list if this was the last + * reference, and sets *ref to NULL. + * + * Before After + * ________ ________ NULL + * |formats |<--------. |formats | ^ + * | ____ | ____|________________ | ____ | ____|________________ + * | |refs| | | __|_ | |refs| | | __|_ + * | |* * | | | | | | AVFilterLink | |* * | | | | | | AVFilterLink + * | |* *--------->|*ref| | |* | | | |*ref| + * | |____| | | |____| | |____| | | |____| + * |________| |_____________________ |________| |_____________________ + */ +void avfilter_formats_unref(AVFilterFormats **ref); + +/** + * + * Before After + * ________ ________ + * |formats |<---------. |formats |<---------. + * | ____ | ___|___ | ____ | ___|___ + * | |refs| | | | | | |refs| | | | | NULL + * | |* *--------->|*oldref| | |* *--------->|*newref| ^ + * | |* * | | |_______| | |* * | | |_______| ___|___ + * | |____| | | |____| | | | | + * |________| |________| |*oldref| + * |_______| + */ +void avfilter_formats_changeref(AVFilterFormats **oldref, + AVFilterFormats **newref); + +/** + * A filter pad used for either input or output. + */ +struct AVFilterPad { + /** + * Pad name. The name is unique among inputs and among outputs, but an + * input may have the same name as an output. This may be NULL if this + * pad has no need to ever be referenced by name. + */ + const char *name; + + /** + * AVFilterPad type. Only video supported now, hopefully someone will + * add audio in the future. + */ + enum AVMediaType type; + + /** + * Minimum required permissions on incoming buffers. Any buffer with + * insufficient permissions will be automatically copied by the filter + * system to a new buffer which provides the needed access permissions. + * + * Input pads only. + */ + int min_perms; + + /** + * Permissions which are not accepted on incoming buffers. Any buffer + * which has any of these permissions set will be automatically copied + * by the filter system to a new buffer which does not have those + * permissions. This can be used to easily disallow buffers with + * AV_PERM_REUSE. + * + * Input pads only. + */ + int rej_perms; + + /** + * Callback called before passing the first slice of a new frame. If + * NULL, the filter layer will default to storing a reference to the + * picture inside the link structure. + * + * Input video pads only. + */ + void (*start_frame)(AVFilterLink *link, AVFilterBufferRef *picref); + + /** + * Callback function to get a video buffer. If NULL, the filter system will + * use avfilter_default_get_video_buffer(). + * + * Input video pads only. + */ + AVFilterBufferRef *(*get_video_buffer)(AVFilterLink *link, int perms, int w, int h); + + /** + * Callback function to get an audio buffer. If NULL, the filter system will + * use avfilter_default_get_audio_buffer(). + * + * Input audio pads only. + */ + AVFilterBufferRef *(*get_audio_buffer)(AVFilterLink *link, int perms, int nb_samples); + + /** + * Callback called after the slices of a frame are completely sent. If + * NULL, the filter layer will default to releasing the reference stored + * in the link structure during start_frame(). + * + * Input video pads only. + */ + void (*end_frame)(AVFilterLink *link); + + /** + * Slice drawing callback. This is where a filter receives video data + * and should do its processing. + * + * Input video pads only. + */ + void (*draw_slice)(AVFilterLink *link, int y, int height, int slice_dir); + + /** + * Samples filtering callback. This is where a filter receives audio data + * and should do its processing. + * + * Input audio pads only. + */ + void (*filter_samples)(AVFilterLink *link, AVFilterBufferRef *samplesref); + + /** + * Frame poll callback. This returns the number of immediately available + * samples. It should return a positive value if the next request_frame() + * is guaranteed to return one frame (with no delay). + * + * Defaults to just calling the source poll_frame() method. + * + * Output video pads only. + */ + int (*poll_frame)(AVFilterLink *link); + + /** + * Frame request callback. A call to this should result in at least one + * frame being output over the given link. This should return zero on + * success, and another value on error. + * + * Output video pads only. + */ + int (*request_frame)(AVFilterLink *link); + + /** + * Link configuration callback. + * + * For output pads, this should set the following link properties: + * video: width, height, sample_aspect_ratio, time_base + * audio: sample_rate. + * + * This should NOT set properties such as format, channel_layout, etc which + * are negotiated between filters by the filter system using the + * query_formats() callback before this function is called. + * + * For input pads, this should check the properties of the link, and update + * the filter's internal state as necessary. + * + * For both input and output pads, this should return zero on success, + * and another value on error. + */ + int (*config_props)(AVFilterLink *link); +}; + +/** default handler for start_frame() for video inputs */ +void avfilter_default_start_frame(AVFilterLink *link, AVFilterBufferRef *picref); + +/** default handler for draw_slice() for video inputs */ +void avfilter_default_draw_slice(AVFilterLink *link, int y, int h, int slice_dir); + +/** default handler for end_frame() for video inputs */ +void avfilter_default_end_frame(AVFilterLink *link); + +/** default handler for filter_samples() for audio inputs */ +void avfilter_default_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref); + +/** default handler for get_video_buffer() for video inputs */ +AVFilterBufferRef *avfilter_default_get_video_buffer(AVFilterLink *link, + int perms, int w, int h); + +/** default handler for get_audio_buffer() for audio inputs */ +AVFilterBufferRef *avfilter_default_get_audio_buffer(AVFilterLink *link, + int perms, int nb_samples); + +/** + * Helpers for query_formats() which set all links to the same list of + * formats/layouts. If there are no links hooked to this filter, the list + * of formats is freed. + */ +void avfilter_set_common_pixel_formats(AVFilterContext *ctx, AVFilterFormats *formats); +void avfilter_set_common_sample_formats(AVFilterContext *ctx, AVFilterFormats *formats); +void avfilter_set_common_channel_layouts(AVFilterContext *ctx, AVFilterFormats *formats); +void avfilter_set_common_packing_formats(AVFilterContext *ctx, AVFilterFormats *formats); + +/** Default handler for query_formats() */ +int avfilter_default_query_formats(AVFilterContext *ctx); + +/** start_frame() handler for filters which simply pass video along */ +void avfilter_null_start_frame(AVFilterLink *link, AVFilterBufferRef *picref); + +/** draw_slice() handler for filters which simply pass video along */ +void avfilter_null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir); + +/** end_frame() handler for filters which simply pass video along */ +void avfilter_null_end_frame(AVFilterLink *link); + +/** filter_samples() handler for filters which simply pass audio along */ +void avfilter_null_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref); + +/** get_video_buffer() handler for filters which simply pass video along */ +AVFilterBufferRef *avfilter_null_get_video_buffer(AVFilterLink *link, + int perms, int w, int h); + +/** get_audio_buffer() handler for filters which simply pass audio along */ +AVFilterBufferRef *avfilter_null_get_audio_buffer(AVFilterLink *link, + int perms, int nb_samples); + +/** + * Filter definition. This defines the pads a filter contains, and all the + * callback functions used to interact with the filter. + */ +typedef struct AVFilter { + const char *name; ///< filter name + + int priv_size; ///< size of private data to allocate for the filter + + /** + * Filter initialization function. Args contains the user-supplied + * parameters. FIXME: maybe an AVOption-based system would be better? + * opaque is data provided by the code requesting creation of the filter, + * and is used to pass data to the filter. + */ + int (*init)(AVFilterContext *ctx, const char *args, void *opaque); + + /** + * Filter uninitialization function. Should deallocate any memory held + * by the filter, release any buffer references, etc. This does not need + * to deallocate the AVFilterContext->priv memory itself. + */ + void (*uninit)(AVFilterContext *ctx); + + /** + * Queries formats/layouts supported by the filter and its pads, and sets + * the in_formats/in_chlayouts for links connected to its output pads, + * and out_formats/out_chlayouts for links connected to its input pads. + * + * @return zero on success, a negative value corresponding to an + * AVERROR code otherwise + */ + int (*query_formats)(AVFilterContext *); + + const AVFilterPad *inputs; ///< NULL terminated list of inputs. NULL if none + const AVFilterPad *outputs; ///< NULL terminated list of outputs. NULL if none + + /** + * A description for the filter. You should use the + * NULL_IF_CONFIG_SMALL() macro to define it. + */ + const char *description; + + /** + * Make the filter instance process a command. + * + * @param cmd the command to process, for handling simplicity all commands must be alphanumeric only + * @param arg the argument for the command + * @param res a buffer with size res_size where the filter(s) can return a response. This must not change when the command is not supported. + * @param flags if AVFILTER_CMD_FLAG_FAST is set and the command would be + * time consuming then a filter should treat it like an unsupported command + * + * @returns >=0 on success otherwise an error code. + * AVERROR(ENOSYS) on unsupported commands + */ + int (*process_command)(AVFilterContext *, const char *cmd, const char *arg, char *res, int res_len, int flags); +} AVFilter; + +/** An instance of a filter */ +struct AVFilterContext { + const AVClass *av_class; ///< needed for av_log() + + AVFilter *filter; ///< the AVFilter of which this is an instance + + char *name; ///< name of this filter instance + + unsigned input_count; ///< number of input pads + AVFilterPad *input_pads; ///< array of input pads + AVFilterLink **inputs; ///< array of pointers to input links + + unsigned output_count; ///< number of output pads + AVFilterPad *output_pads; ///< array of output pads + AVFilterLink **outputs; ///< array of pointers to output links + + void *priv; ///< private data for use by the filter + + struct AVFilterCommand *command_queue; +}; + +enum AVFilterPacking { + AVFILTER_PACKED = 0, + AVFILTER_PLANAR, +}; + +/** + * A link between two filters. This contains pointers to the source and + * destination filters between which this link exists, and the indexes of + * the pads involved. In addition, this link also contains the parameters + * which have been negotiated and agreed upon between the filter, such as + * image dimensions, format, etc. + */ +struct AVFilterLink { + AVFilterContext *src; ///< source filter + AVFilterPad *srcpad; ///< output pad on the source filter + + AVFilterContext *dst; ///< dest filter + AVFilterPad *dstpad; ///< input pad on the dest filter + + /** stage of the initialization of the link properties (dimensions, etc) */ + enum { + AVLINK_UNINIT = 0, ///< not started + AVLINK_STARTINIT, ///< started, but incomplete + AVLINK_INIT ///< complete + } init_state; + + enum AVMediaType type; ///< filter media type + + /* These parameters apply only to video */ + int w; ///< agreed upon image width + int h; ///< agreed upon image height + AVRational sample_aspect_ratio; ///< agreed upon sample aspect ratio + /* These parameters apply only to audio */ + int64_t channel_layout; ///< channel layout of current buffer (see libavutil/audioconvert.h) +#if LIBAVFILTER_VERSION_MAJOR < 3 + int64_t sample_rate; ///< samples per second +#else + int sample_rate; ///< samples per second +#endif + int planar; ///< agreed upon packing mode of audio buffers. true if planar. + + int format; ///< agreed upon media format + + /** + * Lists of formats and channel layouts supported by the input and output + * filters respectively. These lists are used for negotiating the format + * to actually be used, which will be loaded into the format and + * channel_layout members, above, when chosen. + * + */ + AVFilterFormats *in_formats; + AVFilterFormats *out_formats; + + AVFilterFormats *in_chlayouts; + AVFilterFormats *out_chlayouts; + AVFilterFormats *in_packing; + AVFilterFormats *out_packing; + + /** + * The buffer reference currently being sent across the link by the source + * filter. This is used internally by the filter system to allow + * automatic copying of buffers which do not have sufficient permissions + * for the destination. This should not be accessed directly by the + * filters. + */ + AVFilterBufferRef *src_buf; + + AVFilterBufferRef *cur_buf; + AVFilterBufferRef *out_buf; + + /** + * Define the time base used by the PTS of the frames/samples + * which will pass through this link. + * During the configuration stage, each filter is supposed to + * change only the output timebase, while the timebase of the + * input link is assumed to be an unchangeable property. + */ + AVRational time_base; + + struct AVFilterPool *pool; +}; + +/** + * Link two filters together. + * + * @param src the source filter + * @param srcpad index of the output pad on the source filter + * @param dst the destination filter + * @param dstpad index of the input pad on the destination filter + * @return zero on success + */ +int avfilter_link(AVFilterContext *src, unsigned srcpad, + AVFilterContext *dst, unsigned dstpad); + +/** + * Free the link in *link, and set its pointer to NULL. + */ +void avfilter_link_free(AVFilterLink **link); + +/** + * Negotiate the media format, dimensions, etc of all inputs to a filter. + * + * @param filter the filter to negotiate the properties for its inputs + * @return zero on successful negotiation + */ +int avfilter_config_links(AVFilterContext *filter); + +/** + * Request a picture buffer with a specific set of permissions. + * + * @param link the output link to the filter from which the buffer will + * be requested + * @param perms the required access permissions + * @param w the minimum width of the buffer to allocate + * @param h the minimum height of the buffer to allocate + * @return A reference to the buffer. This must be unreferenced with + * avfilter_unref_buffer when you are finished with it. + */ +AVFilterBufferRef *avfilter_get_video_buffer(AVFilterLink *link, int perms, + int w, int h); + +/** + * Create a buffer reference wrapped around an already allocated image + * buffer. + * + * @param data pointers to the planes of the image to reference + * @param linesize linesizes for the planes of the image to reference + * @param perms the required access permissions + * @param w the width of the image specified by the data and linesize arrays + * @param h the height of the image specified by the data and linesize arrays + * @param format the pixel format of the image specified by the data and linesize arrays + */ +AVFilterBufferRef * +avfilter_get_video_buffer_ref_from_arrays(uint8_t * const data[4], const int linesize[4], int perms, + int w, int h, enum PixelFormat format); + +/** + * Request an audio samples buffer with a specific set of permissions. + * + * @param link the output link to the filter from which the buffer will + * be requested + * @param perms the required access permissions + * @param nb_samples the number of samples per channel + * @return A reference to the samples. This must be unreferenced with + * avfilter_unref_buffer when you are finished with it. + */ +AVFilterBufferRef *avfilter_get_audio_buffer(AVFilterLink *link, int perms, + int nb_samples); + +/** + * Create an audio buffer reference wrapped around an already + * allocated samples buffer. + * + * @param data pointers to the samples plane buffers + * @param linesize linesize for the samples plane buffers + * @param perms the required access permissions + * @param nb_samples number of samples per channel + * @param sample_fmt the format of each sample in the buffer to allocate + * @param channel_layout the channel layout of the buffer + * @param planar audio data layout - planar or packed + */ +AVFilterBufferRef * +avfilter_get_audio_buffer_ref_from_arrays(uint8_t *data[8], int linesize[8], int perms, + int nb_samples, enum AVSampleFormat sample_fmt, + int64_t channel_layout, int planar); + +/** + * Request an input frame from the filter at the other end of the link. + * + * @param link the input link + * @return zero on success + */ +int avfilter_request_frame(AVFilterLink *link); + +/** + * Poll a frame from the filter chain. + * + * @param link the input link + * @return the number of immediately available frames, a negative + * number in case of error + */ +int avfilter_poll_frame(AVFilterLink *link); + +/** + * Notify the next filter of the start of a frame. + * + * @param link the output link the frame will be sent over + * @param picref A reference to the frame about to be sent. The data for this + * frame need only be valid once draw_slice() is called for that + * portion. The receiving filter will free this reference when + * it no longer needs it. + */ +void avfilter_start_frame(AVFilterLink *link, AVFilterBufferRef *picref); + +/** + * Notify the next filter that the current frame has finished. + * + * @param link the output link the frame was sent over + */ +void avfilter_end_frame(AVFilterLink *link); + +/** + * Send a slice to the next filter. + * + * Slices have to be provided in sequential order, either in + * top-bottom or bottom-top order. If slices are provided in + * non-sequential order the behavior of the function is undefined. + * + * @param link the output link over which the frame is being sent + * @param y offset in pixels from the top of the image for this slice + * @param h height of this slice in pixels + * @param slice_dir the assumed direction for sending slices, + * from the top slice to the bottom slice if the value is 1, + * from the bottom slice to the top slice if the value is -1, + * for other values the behavior of the function is undefined. + */ +void avfilter_draw_slice(AVFilterLink *link, int y, int h, int slice_dir); + +#define AVFILTER_CMD_FLAG_ONE 1 ///< Stop once a filter understood the command (for target=all for example), fast filters are favored automatically +#define AVFILTER_CMD_FLAG_FAST 2 ///< Only execute command when its fast (like a video out that supports contrast adjustment in hw) + +/** + * Make the filter instance process a command. + * It is recommended to use avfilter_graph_send_command(). + */ +int avfilter_process_command(AVFilterContext *filter, const char *cmd, const char *arg, char *res, int res_len, int flags); + +/** + * Send a buffer of audio samples to the next filter. + * + * @param link the output link over which the audio samples are being sent + * @param samplesref a reference to the buffer of audio samples being sent. The + * receiving filter will free this reference when it no longer + * needs it or pass it on to the next filter. + */ +void avfilter_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref); + +/** Initialize the filter system. Register all built-in filters. */ +void avfilter_register_all(void); + +/** Uninitialize the filter system. Unregister all filters. */ +void avfilter_uninit(void); + +/** + * Register a filter. This is only needed if you plan to use + * avfilter_get_by_name later to lookup the AVFilter structure by name. A + * filter can still by instantiated with avfilter_open even if it is not + * registered. + * + * @param filter the filter to register + * @return 0 if the registration was successful, a negative value + * otherwise + */ +int avfilter_register(AVFilter *filter); + +/** + * Get a filter definition matching the given name. + * + * @param name the filter name to find + * @return the filter definition, if any matching one is registered. + * NULL if none found. + */ +AVFilter *avfilter_get_by_name(const char *name); + +/** + * If filter is NULL, returns a pointer to the first registered filter pointer, + * if filter is non-NULL, returns the next pointer after filter. + * If the returned pointer points to NULL, the last registered filter + * was already reached. + */ +AVFilter **av_filter_next(AVFilter **filter); + +/** + * Create a filter instance. + * + * @param filter_ctx put here a pointer to the created filter context + * on success, NULL on failure + * @param filter the filter to create an instance of + * @param inst_name Name to give to the new instance. Can be NULL for none. + * @return >= 0 in case of success, a negative error code otherwise + */ +int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name); + +/** + * Initialize a filter. + * + * @param filter the filter to initialize + * @param args A string of parameters to use when initializing the filter. + * The format and meaning of this string varies by filter. + * @param opaque Any extra non-string data needed by the filter. The meaning + * of this parameter varies by filter. + * @return zero on success + */ +int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque); + +/** + * Free a filter context. + * + * @param filter the filter to free + */ +void avfilter_free(AVFilterContext *filter); + +/** + * Insert a filter in the middle of an existing link. + * + * @param link the link into which the filter should be inserted + * @param filt the filter to be inserted + * @param filt_srcpad_idx the input pad on the filter to connect + * @param filt_dstpad_idx the output pad on the filter to connect + * @return zero on success + */ +int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt, + unsigned filt_srcpad_idx, unsigned filt_dstpad_idx); + +/** + * Insert a new pad. + * + * @param idx Insertion point. Pad is inserted at the end if this point + * is beyond the end of the list of pads. + * @param count Pointer to the number of pads in the list + * @param padidx_off Offset within an AVFilterLink structure to the element + * to increment when inserting a new pad causes link + * numbering to change + * @param pads Pointer to the pointer to the beginning of the list of pads + * @param links Pointer to the pointer to the beginning of the list of links + * @param newpad The new pad to add. A copy is made when adding. + */ +void avfilter_insert_pad(unsigned idx, unsigned *count, size_t padidx_off, + AVFilterPad **pads, AVFilterLink ***links, + AVFilterPad *newpad); + +/** Insert a new input pad for the filter. */ +static inline void avfilter_insert_inpad(AVFilterContext *f, unsigned index, + AVFilterPad *p) +{ + avfilter_insert_pad(index, &f->input_count, offsetof(AVFilterLink, dstpad), + &f->input_pads, &f->inputs, p); +} + +/** Insert a new output pad for the filter. */ +static inline void avfilter_insert_outpad(AVFilterContext *f, unsigned index, + AVFilterPad *p) +{ + avfilter_insert_pad(index, &f->output_count, offsetof(AVFilterLink, srcpad), + &f->output_pads, &f->outputs, p); +} + +#endif /* AVFILTER_AVFILTER_H */ diff --git a/ffmpeg 0.8/include/libavfilter/avfiltergraph.h b/ffmpeg 0.8/include/libavfilter/avfiltergraph.h new file mode 100644 index 000000000..76fb8aed4 --- /dev/null +++ b/ffmpeg 0.8/include/libavfilter/avfiltergraph.h @@ -0,0 +1,175 @@ +/* + * Filter graphs + * copyright (c) 2007 Bobby Bingham + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVFILTER_AVFILTERGRAPH_H +#define AVFILTER_AVFILTERGRAPH_H + +#include "avfilter.h" + +typedef struct AVFilterGraph { + unsigned filter_count; + AVFilterContext **filters; + + char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters +} AVFilterGraph; + +/** + * Allocate a filter graph. + */ +AVFilterGraph *avfilter_graph_alloc(void); + +/** + * Get a filter instance with name name from graph. + * + * @return the pointer to the found filter instance or NULL if it + * cannot be found. + */ +AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name); + +/** + * Add an existing filter instance to a filter graph. + * + * @param graphctx the filter graph + * @param filter the filter to be added + */ +int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter); + +/** + * Create and add a filter instance into an existing graph. + * The filter instance is created from the filter filt and inited + * with the parameters args and opaque. + * + * In case of success put in *filt_ctx the pointer to the created + * filter instance, otherwise set *filt_ctx to NULL. + * + * @param name the instance name to give to the created filter instance + * @param graph_ctx the filter graph + * @return a negative AVERROR error code in case of failure, a non + * negative value otherwise + */ +int avfilter_graph_create_filter(AVFilterContext **filt_ctx, AVFilter *filt, + const char *name, const char *args, void *opaque, + AVFilterGraph *graph_ctx); + +/** + * Check validity and configure all the links and formats in the graph. + * + * @param graphctx the filter graph + * @param log_ctx context used for logging + * @return 0 in case of success, a negative AVERROR code otherwise + */ +int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx); + +/** + * Free a graph, destroy its links, and set *graph to NULL. + * If *graph is NULL, do nothing. + */ +void avfilter_graph_free(AVFilterGraph **graph); + +/** + * A linked-list of the inputs/outputs of the filter chain. + * + * This is mainly useful for avfilter_graph_parse(), since this + * function may accept a description of a graph with not connected + * input/output pads. This struct specifies, per each not connected + * pad contained in the graph, the filter context and the pad index + * required for establishing a link. + */ +typedef struct AVFilterInOut { + /** unique name for this input/output in the list */ + char *name; + + /** filter context associated to this input/output */ + AVFilterContext *filter_ctx; + + /** index of the filt_ctx pad to use for linking */ + int pad_idx; + + /** next input/input in the list, NULL if this is the last */ + struct AVFilterInOut *next; +} AVFilterInOut; + +/** + * Create an AVFilterInOut. + * Must be free with avfilter_inout_free(). + */ +AVFilterInOut *avfilter_inout_alloc(void); + +/** + * Free the AVFilterInOut in *inout, and set its pointer to NULL. + * If *inout is NULL, do nothing. + */ +void avfilter_inout_free(AVFilterInOut **inout); + +/** + * Add a graph described by a string to a graph. + * + * @param graph the filter graph where to link the parsed graph context + * @param filters string to be parsed + * @param inputs pointer to a linked list to the inputs of the graph, may be NULL. + * If non-NULL, *inputs is updated to contain the list of open inputs + * after the parsing, should be freed with avfilter_inout_free(). + * @param outputs pointer to a linked list to the outputs of the graph, may be NULL. + * If non-NULL, *outputs is updated to contain the list of open outputs + * after the parsing, should be freed with avfilter_inout_free(). + * @return zero on success, a negative AVERROR code on error + */ +int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, + AVFilterInOut **inputs, AVFilterInOut **outputs, + void *log_ctx); + +/** + * Send a command to one or more filter instances. + * + * @param graph the filter graph + * @param target the filter(s) to which the command should be sent + * "all" sends to all filters + * otherwise it can be a filter or filter instance name + * which will send the command to all matching filters. + * @param cmd the command to sent, for handling simplicity all commands must be alphanumeric only + * @param arg the argument for the command + * @param res a buffer with size res_size where the filter(s) can return a response. + * + * @returns >=0 on success otherwise an error code. + * AVERROR(ENOSYS) on unsupported commands + */ +int avfilter_graph_send_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, char *res, int res_len, int flags); + +/** + * Queue a command for one or more filter instances. + * + * @param graph the filter graph + * @param target the filter(s) to which the command should be sent + * "all" sends to all filters + * otherwise it can be a filter or filter instance name + * which will send the command to all matching filters. + * @param cmd the command to sent, for handling simplicity all commands must be alphanummeric only + * @param arg the argument for the command + * @param ts time at which the command should be sent to the filter + * + * @note As this executes commands after this function returns, no return code + * from the filter is provided, also AVFILTER_CMD_FLAG_ONE is not supported. + */ +int avfilter_graph_queue_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, int flags, double ts); + + + +#endif /* AVFILTER_AVFILTERGRAPH_H */ diff --git a/ffmpeg 0.8/include/libavfilter/buffersink.h b/ffmpeg 0.8/include/libavfilter/buffersink.h new file mode 100644 index 000000000..c5ae7dcdd --- /dev/null +++ b/ffmpeg 0.8/include/libavfilter/buffersink.h @@ -0,0 +1,88 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVFILTER_VSINK_BUFFER_H +#define AVFILTER_VSINK_BUFFER_H + +/** + * @file + * memory buffer sink API for audio and video + */ + +#include "avfilter.h" + +/** + * Struct to use for initializing a buffersink context. + */ +typedef struct { + const enum PixelFormat *pixel_fmts; ///< list of allowed pixel formats, terminated by PIX_FMT_NONE +} AVBufferSinkParams; + +/** + * Create an AVBufferSinkParams structure. + * + * Must be freed with av_free(). + */ +AVBufferSinkParams *av_buffersink_params_alloc(void); + +/** + * Struct to use for initializing an abuffersink context. + */ +typedef struct { + const enum AVSampleFormat *sample_fmts; ///< list of allowed sample formats, terminated by AV_SAMPLE_FMT_NONE + const int64_t *channel_layouts; ///< list of allowed channel layouts, terminated by -1 + const int *packing_fmts; ///< list of allowed packing formats +} AVABufferSinkParams; + +/** + * Create an AVABufferSinkParams structure. + * + * Must be freed with av_free(). + */ +AVABufferSinkParams *av_abuffersink_params_alloc(void); + +/** + * Tell av_buffersink_get_buffer_ref() to read video/samples buffer + * reference, but not remove it from the buffer. This is useful if you + * need only to read a video/samples buffer, without to fetch it. + */ +#define AV_BUFFERSINK_FLAG_PEEK 1 + +/** + * Get an audio/video buffer data from buffer_sink and put it in bufref. + * + * This function works with both audio and video buffer sinks. + * + * @param buffer_sink pointer to a buffersink or abuffersink context + * @param flags a combination of AV_BUFFERSINK_FLAG_* flags + * @return >= 0 in case of success, a negative AVERROR code in case of + * failure + */ +int av_buffersink_get_buffer_ref(AVFilterContext *buffer_sink, + AVFilterBufferRef **bufref, int flags); + +#if FF_API_OLD_VSINK_API +/** + * @deprecated Use av_buffersink_get_buffer_ref() instead. + */ +attribute_deprecated +int av_vsink_buffer_get_video_buffer_ref(AVFilterContext *buffer_sink, + AVFilterBufferRef **picref, int flags); +#endif + +#endif /* AVFILTER_VSINK_BUFFER_H */ diff --git a/ffmpeg 0.8/include/libavfilter/vsrc_buffer.h b/ffmpeg 0.8/include/libavfilter/vsrc_buffer.h new file mode 100644 index 000000000..b661d414e --- /dev/null +++ b/ffmpeg 0.8/include/libavfilter/vsrc_buffer.h @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2008 Vitor Sessak + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVFILTER_VSRC_BUFFER_H +#define AVFILTER_VSRC_BUFFER_H + +/** + * @file + * memory buffer source API for video + */ + +#include "avfilter.h" + +/** + * Tell av_vsrc_buffer_add_video_buffer_ref() to overwrite the already + * cached video buffer with the new added one, otherwise the function + * will complain and exit. + */ +#define AV_VSRC_BUF_FLAG_OVERWRITE 1 + +/** + * Add video buffer data in picref to buffer_src. + * + * @param buffer_src pointer to a buffer source context + * @param flags a combination of AV_VSRC_BUF_FLAG_* flags + * @return >= 0 in case of success, a negative AVERROR code in case of + * failure + */ +int av_vsrc_buffer_add_video_buffer_ref(AVFilterContext *buffer_src, + AVFilterBufferRef *picref, int flags); + +#endif /* AVFILTER_VSRC_BUFFER_H */ diff --git a/ffmpeg 0.8/include/libavformat/avformat.h b/ffmpeg 0.8/include/libavformat/avformat.h new file mode 100644 index 000000000..e0e9c1f73 --- /dev/null +++ b/ffmpeg 0.8/include/libavformat/avformat.h @@ -0,0 +1,1924 @@ +/* + * copyright (c) 2001 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVFORMAT_AVFORMAT_H +#define AVFORMAT_AVFORMAT_H + + +/** + * Return the LIBAVFORMAT_VERSION_INT constant. + */ +unsigned avformat_version(void); + +/** + * Return the libavformat build-time configuration. + */ +const char *avformat_configuration(void); + +/** + * Return the libavformat license. + */ +const char *avformat_license(void); + +#include +#include /* FILE */ +#include "libavcodec/avcodec.h" +#include "libavutil/dict.h" +#include "libavutil/log.h" + +#include "avio.h" +#include "libavformat/version.h" + +struct AVFormatContext; + + +/** + * @defgroup metadata_api Public Metadata API + * @{ + * The metadata API allows libavformat to export metadata tags to a client + * application using a sequence of key/value pairs. Like all strings in FFmpeg, + * metadata must be stored as UTF-8 encoded Unicode. Note that metadata + * exported by demuxers isn't checked to be valid UTF-8 in most cases. + * Important concepts to keep in mind: + * - Keys are unique; there can never be 2 tags with the same key. This is + * also meant semantically, i.e., a demuxer should not knowingly produce + * several keys that are literally different but semantically identical. + * E.g., key=Author5, key=Author6. In this example, all authors must be + * placed in the same tag. + * - Metadata is flat, not hierarchical; there are no subtags. If you + * want to store, e.g., the email address of the child of producer Alice + * and actor Bob, that could have key=alice_and_bobs_childs_email_address. + * - Several modifiers can be applied to the tag name. This is done by + * appending a dash character ('-') and the modifier name in the order + * they appear in the list below -- e.g. foo-eng-sort, not foo-sort-eng. + * - language -- a tag whose value is localized for a particular language + * is appended with the ISO 639-2/B 3-letter language code. + * For example: Author-ger=Michael, Author-eng=Mike + * The original/default language is in the unqualified "Author" tag. + * A demuxer should set a default if it sets any translated tag. + * - sorting -- a modified version of a tag that should be used for + * sorting will have '-sort' appended. E.g. artist="The Beatles", + * artist-sort="Beatles, The". + * + * - Demuxers attempt to export metadata in a generic format, however tags + * with no generic equivalents are left as they are stored in the container. + * Follows a list of generic tag names: + * + @verbatim + album -- name of the set this work belongs to + album_artist -- main creator of the set/album, if different from artist. + e.g. "Various Artists" for compilation albums. + artist -- main creator of the work + comment -- any additional description of the file. + composer -- who composed the work, if different from artist. + copyright -- name of copyright holder. + creation_time-- date when the file was created, preferably in ISO 8601. + date -- date when the work was created, preferably in ISO 8601. + disc -- number of a subset, e.g. disc in a multi-disc collection. + encoder -- name/settings of the software/hardware that produced the file. + encoded_by -- person/group who created the file. + filename -- original name of the file. + genre -- . + language -- main language in which the work is performed, preferably + in ISO 639-2 format. Multiple languages can be specified by + separating them with commas. + performer -- artist who performed the work, if different from artist. + E.g for "Also sprach Zarathustra", artist would be "Richard + Strauss" and performer "London Philharmonic Orchestra". + publisher -- name of the label/publisher. + service_name -- name of the service in broadcasting (channel name). + service_provider -- name of the service provider in broadcasting. + title -- name of the work. + track -- number of this work in the set, can be in form current/total. + variant_bitrate -- the total bitrate of the bitrate variant that the current stream is part of + @endverbatim + * + * Look in the examples section for an application example how to use the Metadata API. + * + * @} + */ + +#if FF_API_OLD_METADATA2 +/** + * @defgroup old_metadata Old metadata API + * The following functions are deprecated, use + * their equivalents from libavutil/dict.h instead. + * @{ + */ + +#define AV_METADATA_MATCH_CASE AV_DICT_MATCH_CASE +#define AV_METADATA_IGNORE_SUFFIX AV_DICT_IGNORE_SUFFIX +#define AV_METADATA_DONT_STRDUP_KEY AV_DICT_DONT_STRDUP_KEY +#define AV_METADATA_DONT_STRDUP_VAL AV_DICT_DONT_STRDUP_VAL +#define AV_METADATA_DONT_OVERWRITE AV_DICT_DONT_OVERWRITE + +typedef attribute_deprecated AVDictionary AVMetadata; +typedef attribute_deprecated AVDictionaryEntry AVMetadataTag; + +typedef struct AVMetadataConv AVMetadataConv; + +/** + * Get a metadata element with matching key. + * + * @param prev Set to the previous matching element to find the next. + * If set to NULL the first matching element is returned. + * @param flags Allows case as well as suffix-insensitive comparisons. + * @return Found tag or NULL, changing key or value leads to undefined behavior. + */ +attribute_deprecated AVDictionaryEntry * +av_metadata_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags); + +/** + * Set the given tag in *pm, overwriting an existing tag. + * + * @param pm pointer to a pointer to a metadata struct. If *pm is NULL + * a metadata struct is allocated and put in *pm. + * @param key tag key to add to *pm (will be av_strduped depending on flags) + * @param value tag value to add to *pm (will be av_strduped depending on flags). + * Passing a NULL value will cause an existing tag to be deleted. + * @return >= 0 on success otherwise an error code <0 + */ +attribute_deprecated int av_metadata_set2(AVDictionary **pm, const char *key, const char *value, int flags); + +/** + * This function is provided for compatibility reason and currently does nothing. + */ +attribute_deprecated void av_metadata_conv(struct AVFormatContext *ctx, const AVMetadataConv *d_conv, + const AVMetadataConv *s_conv); + +/** + * Copy metadata from one AVDictionary struct into another. + * @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL, + * this function will allocate a struct for you and put it in *dst + * @param src pointer to source AVDictionary struct + * @param flags flags to use when setting metadata in *dst + * @note metadata is read using the AV_DICT_IGNORE_SUFFIX flag + */ +attribute_deprecated void av_metadata_copy(AVDictionary **dst, AVDictionary *src, int flags); + +/** + * Free all the memory allocated for an AVDictionary struct. + */ +attribute_deprecated void av_metadata_free(AVDictionary **m); +/** + * @} + */ +#endif + + +/* packet functions */ + + +/** + * Allocate and read the payload of a packet and initialize its + * fields with default values. + * + * @param pkt packet + * @param size desired payload size + * @return >0 (read size) if OK, AVERROR_xxx otherwise + */ +int av_get_packet(AVIOContext *s, AVPacket *pkt, int size); + + +/** + * Read data and append it to the current content of the AVPacket. + * If pkt->size is 0 this is identical to av_get_packet. + * Note that this uses av_grow_packet and thus involves a realloc + * which is inefficient. Thus this function should only be used + * when there is no reasonable way to know (an upper bound of) + * the final size. + * + * @param pkt packet + * @param size amount of data to read + * @return >0 (read size) if OK, AVERROR_xxx otherwise, previous data + * will not be lost even if an error occurs. + */ +int av_append_packet(AVIOContext *s, AVPacket *pkt, int size); + +/*************************************************/ +/* fractional numbers for exact pts handling */ + +/** + * The exact value of the fractional number is: 'val + num / den'. + * num is assumed to be 0 <= num < den. + */ +typedef struct AVFrac { + int64_t val, num, den; +} AVFrac; + +/*************************************************/ +/* input/output formats */ + +struct AVCodecTag; + +/** + * This structure contains the data a format has to probe a file. + */ +typedef struct AVProbeData { + const char *filename; + unsigned char *buf; /**< Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero. */ + int buf_size; /**< Size of buf except extra allocated bytes */ +} AVProbeData; + +#define AVPROBE_SCORE_MAX 100 ///< maximum score, half of that is used for file-extension-based detection +#define AVPROBE_PADDING_SIZE 32 ///< extra allocated bytes at the end of the probe buffer + +typedef struct AVFormatParameters { +#if FF_API_FORMAT_PARAMETERS + attribute_deprecated AVRational time_base; + attribute_deprecated int sample_rate; + attribute_deprecated int channels; + attribute_deprecated int width; + attribute_deprecated int height; + attribute_deprecated enum PixelFormat pix_fmt; + attribute_deprecated int channel; /**< Used to select DV channel. */ + attribute_deprecated const char *standard; /**< deprecated, use demuxer-specific options instead. */ + attribute_deprecated unsigned int mpeg2ts_raw:1; /**< deprecated, use mpegtsraw demuxer */ + /**< deprecated, use mpegtsraw demuxer-specific options instead */ + attribute_deprecated unsigned int mpeg2ts_compute_pcr:1; + attribute_deprecated unsigned int initial_pause:1; /**< Do not begin to play the stream + immediately (RTSP only). */ + attribute_deprecated unsigned int prealloced_context:1; +#endif +} AVFormatParameters; + +//! Demuxer will use avio_open, no opened file should be provided by the caller. +#define AVFMT_NOFILE 0x0001 +#define AVFMT_NEEDNUMBER 0x0002 /**< Needs '%d' in filename. */ +#define AVFMT_SHOW_IDS 0x0008 /**< Show format stream IDs numbers. */ +#define AVFMT_RAWPICTURE 0x0020 /**< Format wants AVPicture structure for + raw picture data. */ +#define AVFMT_GLOBALHEADER 0x0040 /**< Format wants global header. */ +#define AVFMT_NOTIMESTAMPS 0x0080 /**< Format does not need / have any timestamps. */ +#define AVFMT_GENERIC_INDEX 0x0100 /**< Use generic index building code. */ +#define AVFMT_TS_DISCONT 0x0200 /**< Format allows timestamp discontinuities. Note, muxers always require valid (monotone) timestamps */ +#define AVFMT_VARIABLE_FPS 0x0400 /**< Format allows variable fps. */ +#define AVFMT_NODIMENSIONS 0x0800 /**< Format does not need width/height */ +#define AVFMT_NOSTREAMS 0x1000 /**< Format does not require any streams */ +#define AVFMT_NOBINSEARCH 0x2000 /**< Format does not allow to fallback to binary search via read_timestamp */ +#define AVFMT_NOGENSEARCH 0x4000 /**< Format does not allow to fallback to generic search */ +#define AVFMT_NO_BYTE_SEEK 0x8000 /**< Format does not allow seeking by bytes */ +#define AVFMT_TS_NONSTRICT 0x8000000 /**< Format does not require strictly + increasing timestamps, but they must + still be monotonic */ + +typedef struct AVOutputFormat { + const char *name; + /** + * Descriptive name for the format, meant to be more human-readable + * than name. You should use the NULL_IF_CONFIG_SMALL() macro + * to define it. + */ + const char *long_name; + const char *mime_type; + const char *extensions; /**< comma-separated filename extensions */ + /** + * size of private data so that it can be allocated in the wrapper + */ + int priv_data_size; + /* output support */ + enum CodecID audio_codec; /**< default audio codec */ + enum CodecID video_codec; /**< default video codec */ + int (*write_header)(struct AVFormatContext *); + int (*write_packet)(struct AVFormatContext *, AVPacket *pkt); + int (*write_trailer)(struct AVFormatContext *); + /** + * can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_RAWPICTURE, + * AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS, + * AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS + */ + int flags; + + void *dummy; + + int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, + AVPacket *in, int flush); + + /** + * List of supported codec_id-codec_tag pairs, ordered by "better + * choice first". The arrays are all terminated by CODEC_ID_NONE. + */ + const struct AVCodecTag * const *codec_tag; + + enum CodecID subtitle_codec; /**< default subtitle codec */ + +#if FF_API_OLD_METADATA2 + const AVMetadataConv *metadata_conv; +#endif + + const AVClass *priv_class; ///< AVClass for the private context + + /** + * Test if the given codec can be stored in this container. + * + * @return 1 if the codec is supported, 0 if it is not. + * A negative number if unknown. + */ + int (*query_codec)(enum CodecID id, int std_compliance); + + void (*get_output_timestamp)(struct AVFormatContext *s, int stream, + int64_t *dts, int64_t *wall); + + /* private fields */ + struct AVOutputFormat *next; +} AVOutputFormat; + +typedef struct AVInputFormat { + /** + * A comma separated list of short names for the format. New names + * may be appended with a minor bump. + */ + const char *name; + + /** + * Descriptive name for the format, meant to be more human-readable + * than name. You should use the NULL_IF_CONFIG_SMALL() macro + * to define it. + */ + const char *long_name; + + /** + * Size of private data so that it can be allocated in the wrapper. + */ + int priv_data_size; + + /** + * Tell if a given file has a chance of being parsed as this format. + * The buffer provided is guaranteed to be AVPROBE_PADDING_SIZE bytes + * big so you do not have to check for that unless you need more. + */ + int (*read_probe)(AVProbeData *); + + /** + * Read the format header and initialize the AVFormatContext + * structure. Return 0 if OK. 'ap' if non-NULL contains + * additional parameters. Only used in raw format right + * now. 'av_new_stream' should be called to create new streams. + */ + int (*read_header)(struct AVFormatContext *, + AVFormatParameters *ap); + + /** + * Read one packet and put it in 'pkt'. pts and flags are also + * set. 'av_new_stream' can be called only if the flag + * AVFMTCTX_NOHEADER is used and only in the calling thread (not in a + * background thread). + * @return 0 on success, < 0 on error. + * When returning an error, pkt must not have been allocated + * or must be freed before returning + */ + int (*read_packet)(struct AVFormatContext *, AVPacket *pkt); + + /** + * Close the stream. The AVFormatContext and AVStreams are not + * freed by this function + */ + int (*read_close)(struct AVFormatContext *); + +#if FF_API_READ_SEEK + /** + * Seek to a given timestamp relative to the frames in + * stream component stream_index. + * @param stream_index Must not be -1. + * @param flags Selects which direction should be preferred if no exact + * match is available. + * @return >= 0 on success (but not necessarily the new offset) + */ + attribute_deprecated int (*read_seek)(struct AVFormatContext *, + int stream_index, int64_t timestamp, int flags); +#endif + /** + * Gets the next timestamp in stream[stream_index].time_base units. + * @return the timestamp or AV_NOPTS_VALUE if an error occurred + */ + int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index, + int64_t *pos, int64_t pos_limit); + + /** + * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS, + * AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH, + * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK. + */ + int flags; + + /** + * If extensions are defined, then no probe is done. You should + * usually not use extension format guessing because it is not + * reliable enough + */ + const char *extensions; + + /** + * General purpose read-only value that the format can use. + */ + int value; + + /** + * Start/resume playing - only meaningful if using a network-based format + * (RTSP). + */ + int (*read_play)(struct AVFormatContext *); + + /** + * Pause playing - only meaningful if using a network-based format + * (RTSP). + */ + int (*read_pause)(struct AVFormatContext *); + + const struct AVCodecTag * const *codec_tag; + + /** + * Seek to timestamp ts. + * Seeking will be done so that the point from which all active streams + * can be presented successfully will be closest to ts and within min/max_ts. + * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL. + */ + int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags); + +#if FF_API_OLD_METADATA2 + const AVMetadataConv *metadata_conv; +#endif + + const AVClass *priv_class; ///< AVClass for the private context + + /* private fields */ + struct AVInputFormat *next; +} AVInputFormat; + +enum AVStreamParseType { + AVSTREAM_PARSE_NONE, + AVSTREAM_PARSE_FULL, /**< full parsing and repack */ + AVSTREAM_PARSE_HEADERS, /**< Only parse headers, do not repack. */ + AVSTREAM_PARSE_TIMESTAMPS, /**< full parsing and interpolation of timestamps for frames not starting on a packet boundary */ + AVSTREAM_PARSE_FULL_ONCE, /**< full parsing and repack of the first frame only, only implemented for H.264 currently */ +}; + +typedef struct AVIndexEntry { + int64_t pos; + int64_t timestamp; /**< + * Timestamp in AVStream.time_base units, preferably the time from which on correctly decoded frames are available + * when seeking to this entry. That means preferable PTS on keyframe based formats. + * But demuxers can choose to store a different timestamp, if it is more convenient for the implementation or nothing better + * is known + */ +#define AVINDEX_KEYFRAME 0x0001 + int flags:2; + int size:30; //Yeah, trying to keep the size of this small to reduce memory requirements (it is 24 vs. 32 bytes due to possible 8-byte alignment). + int min_distance; /**< Minimum distance between this and the previous keyframe, used to avoid unneeded searching. */ +} AVIndexEntry; + +#define AV_DISPOSITION_DEFAULT 0x0001 +#define AV_DISPOSITION_DUB 0x0002 +#define AV_DISPOSITION_ORIGINAL 0x0004 +#define AV_DISPOSITION_COMMENT 0x0008 +#define AV_DISPOSITION_LYRICS 0x0010 +#define AV_DISPOSITION_KARAOKE 0x0020 + +/** + * Track should be used during playback by default. + * Useful for subtitle track that should be displayed + * even when user did not explicitly ask for subtitles. + */ +#define AV_DISPOSITION_FORCED 0x0040 +#define AV_DISPOSITION_HEARING_IMPAIRED 0x0080 /**< stream for hearing impaired audiences */ +#define AV_DISPOSITION_VISUAL_IMPAIRED 0x0100 /**< stream for visual impaired audiences */ +#define AV_DISPOSITION_CLEAN_EFFECTS 0x0200 /**< stream without voice */ + +/** + * Stream structure. + * New fields can be added to the end with minor version bumps. + * Removal, reordering and changes to existing fields require a major + * version bump. + * sizeof(AVStream) must not be used outside libav*. + */ +typedef struct AVStream { + int index; /**< stream index in AVFormatContext */ + int id; /**< format-specific stream ID */ + AVCodecContext *codec; /**< codec context */ + /** + * Real base framerate of the stream. + * This is the lowest framerate with which all timestamps can be + * represented accurately (it is the least common multiple of all + * framerates in the stream). Note, this value is just a guess! + * For example, if the time base is 1/90000 and all frames have either + * approximately 3600 or 1800 timer ticks, then r_frame_rate will be 50/1. + */ + AVRational r_frame_rate; + void *priv_data; + +#if FF_API_REORDER_PRIVATE + /* internal data used in av_find_stream_info() */ + int64_t first_dts; +#endif + + /** + * encoding: pts generation when outputting stream + */ + struct AVFrac pts; + + /** + * This is the fundamental unit of time (in seconds) in terms + * of which frame timestamps are represented. For fixed-fps content, + * time base should be 1/framerate and timestamp increments should be 1. + * decoding: set by libavformat + * encoding: set by libavformat in av_write_header + */ + AVRational time_base; +#if FF_API_REORDER_PRIVATE + int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */ +#endif +#if FF_API_STREAM_COPY + /* ffmpeg.c private use */ + attribute_deprecated int stream_copy; /**< If set, just copy stream. */ +#endif + enum AVDiscard discard; ///< Selects which packets can be discarded at will and do not need to be demuxed. + +#if FF_API_AVSTREAM_QUALITY + //FIXME move stuff to a flags field? + /** + * Quality, as it has been removed from AVCodecContext and put in AVVideoFrame. + * MN: dunno if that is the right place for it + */ + attribute_deprecated float quality; +#endif + + /** + * Decoding: pts of the first frame of the stream in presentation order, in stream time base. + * Only set this if you are absolutely 100% sure that the value you set + * it to really is the pts of the first frame. + * This may be undefined (AV_NOPTS_VALUE). + * @note The ASF header does NOT contain a correct start_time the ASF + * demuxer must NOT set this. + */ + int64_t start_time; + + /** + * Decoding: duration of the stream, in stream time base. + * If a source file does not specify a duration, but does specify + * a bitrate, this value will be estimated from bitrate and file size. + */ + int64_t duration; + +#if FF_API_REORDER_PRIVATE + /* av_read_frame() support */ + enum AVStreamParseType need_parsing; + struct AVCodecParserContext *parser; + + int64_t cur_dts; + int last_IP_duration; + int64_t last_IP_pts; + /* av_seek_frame() support */ + AVIndexEntry *index_entries; /**< Only used if the format does not + support seeking natively. */ + int nb_index_entries; + unsigned int index_entries_allocated_size; +#endif + + int64_t nb_frames; ///< number of frames in this stream if known or 0 + + int disposition; /**< AV_DISPOSITION_* bit field */ + +#if FF_API_REORDER_PRIVATE + AVProbeData probe_data; +#define MAX_REORDER_DELAY 16 + int64_t pts_buffer[MAX_REORDER_DELAY+1]; +#endif + + /** + * sample aspect ratio (0 if unknown) + * - encoding: Set by user. + * - decoding: Set by libavformat. + */ + AVRational sample_aspect_ratio; + + AVDictionary *metadata; + +#if FF_API_REORDER_PRIVATE + /* Intended mostly for av_read_frame() support. Not supposed to be used by */ + /* external applications; try to use something else if at all possible. */ + const uint8_t *cur_ptr; + int cur_len; + AVPacket cur_pkt; + + // Timestamp generation support: + /** + * Timestamp corresponding to the last dts sync point. + * + * Initialized when AVCodecParserContext.dts_sync_point >= 0 and + * a DTS is received from the underlying container. Otherwise set to + * AV_NOPTS_VALUE by default. + */ + int64_t reference_dts; + + /** + * Number of packets to buffer for codec probing + * NOT PART OF PUBLIC API + */ +#define MAX_PROBE_PACKETS 2500 + int probe_packets; + + /** + * last packet in packet_buffer for this stream when muxing. + * used internally, NOT PART OF PUBLIC API, dont read or write from outside of libav* + */ + struct AVPacketList *last_in_packet_buffer; +#endif + + /** + * Average framerate + */ + AVRational avg_frame_rate; + + /***************************************************************** + * All fields below this line are not part of the public API. They + * may not be used outside of libavformat and can be changed and + * removed at will. + * New public fields should be added right above. + ***************************************************************** + */ + + /** + * Number of frames that have been demuxed during av_find_stream_info() + */ + int codec_info_nb_frames; + + /** + * Stream Identifier + * This is the MPEG-TS stream identifier +1 + * 0 means unknown + */ + int stream_identifier; + + /** + * Stream informations used internally by av_find_stream_info() + */ +#define MAX_STD_TIMEBASES (60*12+5) + struct { + int64_t last_dts; + int64_t duration_gcd; + int duration_count; + double duration_error[2][2][MAX_STD_TIMEBASES]; + int64_t codec_info_duration; + int nb_decoded_frames; + } *info; + + /** + * flag to indicate that probing is requested + * NOT PART OF PUBLIC API + */ + int request_probe; +#if !FF_API_REORDER_PRIVATE + const uint8_t *cur_ptr; + int cur_len; + AVPacket cur_pkt; + + // Timestamp generation support: + /** + * Timestamp corresponding to the last dts sync point. + * + * Initialized when AVCodecParserContext.dts_sync_point >= 0 and + * a DTS is received from the underlying container. Otherwise set to + * AV_NOPTS_VALUE by default. + */ + int64_t reference_dts; + int64_t first_dts; + int64_t cur_dts; + int last_IP_duration; + int64_t last_IP_pts; + + /** + * Number of packets to buffer for codec probing + */ +#define MAX_PROBE_PACKETS 2500 + int probe_packets; + + /** + * last packet in packet_buffer for this stream when muxing. + */ + struct AVPacketList *last_in_packet_buffer; + AVProbeData probe_data; +#define MAX_REORDER_DELAY 16 + int64_t pts_buffer[MAX_REORDER_DELAY+1]; + /* av_read_frame() support */ + enum AVStreamParseType need_parsing; + struct AVCodecParserContext *parser; + + AVIndexEntry *index_entries; /**< Only used if the format does not + support seeking natively. */ + int nb_index_entries; + unsigned int index_entries_allocated_size; + + int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */ +#endif +} AVStream; + +#define AV_PROGRAM_RUNNING 1 + +/** + * New fields can be added to the end with minor version bumps. + * Removal, reordering and changes to existing fields require a major + * version bump. + * sizeof(AVProgram) must not be used outside libav*. + */ +typedef struct AVProgram { + int id; + int flags; + enum AVDiscard discard; ///< selects which program to discard and which to feed to the caller + unsigned int *stream_index; + unsigned int nb_stream_indexes; + AVDictionary *metadata; + + int program_num; + int pmt_pid; + int pcr_pid; +} AVProgram; + +#define AVFMTCTX_NOHEADER 0x0001 /**< signal that no header is present + (streams are added dynamically) */ + +typedef struct AVChapter { + int id; ///< unique ID to identify the chapter + AVRational time_base; ///< time base in which the start/end timestamps are specified + int64_t start, end; ///< chapter start/end time in time_base units + AVDictionary *metadata; +} AVChapter; + +/** + * Format I/O context. + * New fields can be added to the end with minor version bumps. + * Removal, reordering and changes to existing fields require a major + * version bump. + * sizeof(AVFormatContext) must not be used outside libav*, use + * avformat_alloc_context() to create an AVFormatContext. + */ +typedef struct AVFormatContext { + /** + * A class for logging and AVOptions. Set by avformat_alloc_context(). + * Exports (de)muxer private options if they exist. + */ + const AVClass *av_class; + + /** + * Can only be iformat or oformat, not both at the same time. + * + * decoding: set by avformat_open_input(). + * encoding: set by the user. + */ + struct AVInputFormat *iformat; + struct AVOutputFormat *oformat; + + /** + * Format private data. This is an AVOptions-enabled struct + * if and only if iformat/oformat.priv_class is not NULL. + */ + void *priv_data; + + /* + * I/O context. + * + * decoding: either set by the user before avformat_open_input() (then + * the user must close it manually) or set by avformat_open_input(). + * encoding: set by the user. + * + * Do NOT set this field if AVFMT_NOFILE flag is set in + * iformat/oformat.flags. In such a case, the (de)muxer will handle + * I/O in some other way and this field will be NULL. + */ + AVIOContext *pb; + + /** + * A list of all streams in the file. New streams are created with + * avformat_new_stream(). + * + * decoding: streams are created by libavformat in avformat_open_input(). + * If AVFMTCTX_NOHEADER is set in ctx_flags, then new streams may also + * appear in av_read_frame(). + * encoding: streams are created by the user before avformat_write_header(). + */ + unsigned int nb_streams; + AVStream **streams; + + char filename[1024]; /**< input or output filename */ + /* stream info */ +#if FF_API_TIMESTAMP + /** + * @deprecated use 'creation_time' metadata tag instead + */ + attribute_deprecated int64_t timestamp; +#endif + + int ctx_flags; /**< Format-specific flags, see AVFMTCTX_xx */ +#if FF_API_REORDER_PRIVATE + /* private data for pts handling (do not modify directly). */ + /** + * This buffer is only needed when packets were already buffered but + * not decoded, for example to get the codec parameters in MPEG + * streams. + */ + struct AVPacketList *packet_buffer; +#endif + + /** + * Decoding: position of the first frame of the component, in + * AV_TIME_BASE fractional seconds. NEVER set this value directly: + * It is deduced from the AVStream values. + */ + int64_t start_time; + + /** + * Decoding: duration of the stream, in AV_TIME_BASE fractional + * seconds. Only set this value if you know none of the individual stream + * durations and also dont set any of them. This is deduced from the + * AVStream values if not set. + */ + int64_t duration; + +#if FF_API_FILESIZE + /** + * decoding: total file size, 0 if unknown + */ + attribute_deprecated int64_t file_size; +#endif + + /** + * Decoding: total stream bitrate in bit/s, 0 if not + * available. Never set it directly if the file_size and the + * duration are known as FFmpeg can compute it automatically. + */ + int bit_rate; + +#if FF_API_REORDER_PRIVATE + /* av_read_frame() support */ + AVStream *cur_st; + + /* av_seek_frame() support */ + int64_t data_offset; /**< offset of the first packet */ +#endif + +#if FF_API_MUXRATE + /** + * use mpeg muxer private options instead + */ + attribute_deprecated int mux_rate; +#endif + unsigned int packet_size; +#if FF_API_PRELOAD + attribute_deprecated int preload; +#endif + int max_delay; + +#if FF_API_LOOP_OUTPUT +#define AVFMT_NOOUTPUTLOOP -1 +#define AVFMT_INFINITEOUTPUTLOOP 0 + /** + * number of times to loop output in formats that support it + * + * @deprecated use the 'loop' private option in the gif muxer. + */ + attribute_deprecated int loop_output; +#endif + + int flags; +#define AVFMT_FLAG_GENPTS 0x0001 ///< Generate missing pts even if it requires parsing future frames. +#define AVFMT_FLAG_IGNIDX 0x0002 ///< Ignore index. +#define AVFMT_FLAG_NONBLOCK 0x0004 ///< Do not block when reading packets from input. +#define AVFMT_FLAG_IGNDTS 0x0008 ///< Ignore DTS on frames that contain both DTS & PTS +#define AVFMT_FLAG_NOFILLIN 0x0010 ///< Do not infer any values from other values, just return what is stored in the container +#define AVFMT_FLAG_NOPARSE 0x0020 ///< Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled +#if FF_API_FLAG_RTP_HINT +#define AVFMT_FLAG_RTP_HINT 0x0040 ///< Deprecated, use the -movflags rtphint muxer specific AVOption instead +#endif +#define AVFMT_FLAG_CUSTOM_IO 0x0080 ///< The caller has supplied a custom AVIOContext, don't avio_close() it. +#define AVFMT_FLAG_DISCARD_CORRUPT 0x0100 ///< Discard frames marked corrupted +#define AVFMT_FLAG_MP4A_LATM 0x8000 ///< Enable RTP MP4A-LATM payload +#define AVFMT_FLAG_SORT_DTS 0x10000 ///< try to interleave outputted packets by dts (using this flag can slow demuxing down) +#define AVFMT_FLAG_PRIV_OPT 0x20000 ///< Enable use of private options by delaying codec open (this could be made default once all code is converted) +#define AVFMT_FLAG_KEEP_SIDE_DATA 0x40000 ///< Dont merge side data but keep it seperate. + +#if FF_API_LOOP_INPUT + /** + * @deprecated, use the 'loop' img2 demuxer private option. + */ + attribute_deprecated int loop_input; +#endif + + /** + * decoding: size of data to probe; encoding: unused. + */ + unsigned int probesize; + + /** + * decoding: maximum time (in AV_TIME_BASE units) during which the input should + * be analyzed in avformat_find_stream_info(). + */ + int max_analyze_duration; + + const uint8_t *key; + int keylen; + + unsigned int nb_programs; + AVProgram **programs; + + /** + * Forced video codec_id. + * Demuxing: Set by user. + */ + enum CodecID video_codec_id; + + /** + * Forced audio codec_id. + * Demuxing: Set by user. + */ + enum CodecID audio_codec_id; + + /** + * Forced subtitle codec_id. + * Demuxing: Set by user. + */ + enum CodecID subtitle_codec_id; + + /** + * Maximum amount of memory in bytes to use for the index of each stream. + * If the index exceeds this size, entries will be discarded as + * needed to maintain a smaller size. This can lead to slower or less + * accurate seeking (depends on demuxer). + * Demuxers for which a full in-memory index is mandatory will ignore + * this. + * muxing : unused + * demuxing: set by user + */ + unsigned int max_index_size; + + /** + * Maximum amount of memory in bytes to use for buffering frames + * obtained from realtime capture devices. + */ + unsigned int max_picture_buffer; + + unsigned int nb_chapters; + AVChapter **chapters; + + /** + * Flags to enable debugging. + */ + int debug; +#define FF_FDEBUG_TS 0x0001 + +#if FF_API_REORDER_PRIVATE + /** + * Raw packets from the demuxer, prior to parsing and decoding. + * This buffer is used for buffering packets until the codec can + * be identified, as parsing cannot be done without knowing the + * codec. + */ + struct AVPacketList *raw_packet_buffer; + struct AVPacketList *raw_packet_buffer_end; + + struct AVPacketList *packet_buffer_end; +#endif + + AVDictionary *metadata; + +#if FF_API_REORDER_PRIVATE + /** + * Remaining size available for raw_packet_buffer, in bytes. + * NOT PART OF PUBLIC API + */ +#define RAW_PACKET_BUFFER_SIZE 2500000 + int raw_packet_buffer_remaining_size; +#endif + + /** + * Start time of the stream in real world time, in microseconds + * since the unix epoch (00:00 1st January 1970). That is, pts=0 + * in the stream was captured at this real world time. + * - encoding: Set by user. + * - decoding: Unused. + */ + int64_t start_time_realtime; + + /** + * decoding: number of frames used to probe fps + */ + int fps_probe_size; + + /** + * Error recognition; higher values will detect more errors but may + * misdetect some more or less valid parts as errors. + * - encoding: unused + * - decoding: Set by user. + */ + int error_recognition; + + /** + * Custom interrupt callbacks for the I/O layer. + * + * decoding: set by the user before avformat_open_input(). + * encoding: set by the user before avformat_write_header() + * (mainly useful for AVFMT_NOFILE formats). The callback + * should also be passed to avio_open2() if it's used to + * open the file. + */ + AVIOInterruptCB interrupt_callback; + + /** + * Transport stream id. + * This will be moved into demuxer private options. Thus no API/ABI compatibility + */ + int ts_id; + + + /***************************************************************** + * All fields below this line are not part of the public API. They + * may not be used outside of libavformat and can be changed and + * removed at will. + * New public fields should be added right above. + ***************************************************************** + */ +#if !FF_API_REORDER_PRIVATE + /** + * Raw packets from the demuxer, prior to parsing and decoding. + * This buffer is used for buffering packets until the codec can + * be identified, as parsing cannot be done without knowing the + * codec. + */ + struct AVPacketList *raw_packet_buffer; + struct AVPacketList *raw_packet_buffer_end; + /** + * Remaining size available for raw_packet_buffer, in bytes. + */ +#define RAW_PACKET_BUFFER_SIZE 2500000 + int raw_packet_buffer_remaining_size; + + /** + * This buffer is only needed when packets were already buffered but + * not decoded, for example to get the codec parameters in MPEG + * streams. + */ + struct AVPacketList *packet_buffer; + struct AVPacketList *packet_buffer_end; + + /* av_read_frame() support */ + AVStream *cur_st; + + /* av_seek_frame() support */ + int64_t data_offset; /**< offset of the first packet */ +#endif +} AVFormatContext; + +typedef struct AVPacketList { + AVPacket pkt; + struct AVPacketList *next; +} AVPacketList; + +/** + * If f is NULL, returns the first registered input format, + * if f is non-NULL, returns the next registered input format after f + * or NULL if f is the last one. + */ +AVInputFormat *av_iformat_next(AVInputFormat *f); + +/** + * If f is NULL, returns the first registered output format, + * if f is non-NULL, returns the next registered output format after f + * or NULL if f is the last one. + */ +AVOutputFormat *av_oformat_next(AVOutputFormat *f); + +#if FF_API_GUESS_IMG2_CODEC +attribute_deprecated enum CodecID av_guess_image2_codec(const char *filename); +#endif + +/* XXX: Use automatic init with either ELF sections or C file parser */ +/* modules. */ + +/* utils.c */ +void av_register_input_format(AVInputFormat *format); +void av_register_output_format(AVOutputFormat *format); + +/** + * Return the output format in the list of registered output formats + * which best matches the provided parameters, or return NULL if + * there is no match. + * + * @param short_name if non-NULL checks if short_name matches with the + * names of the registered formats + * @param filename if non-NULL checks if filename terminates with the + * extensions of the registered formats + * @param mime_type if non-NULL checks if mime_type matches with the + * MIME type of the registered formats + */ +AVOutputFormat *av_guess_format(const char *short_name, + const char *filename, + const char *mime_type); + +/** + * Guess the codec ID based upon muxer and filename. + */ +enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name, + const char *filename, const char *mime_type, + enum AVMediaType type); + +/** + * Send a nice hexadecimal dump of a buffer to the specified file stream. + * + * @param f The file stream pointer where the dump should be sent to. + * @param buf buffer + * @param size buffer size + * + * @see av_hex_dump_log, av_pkt_dump2, av_pkt_dump_log2 + */ +void av_hex_dump(FILE *f, uint8_t *buf, int size); + +/** + * Send a nice hexadecimal dump of a buffer to the log. + * + * @param avcl A pointer to an arbitrary struct of which the first field is a + * pointer to an AVClass struct. + * @param level The importance level of the message, lower values signifying + * higher importance. + * @param buf buffer + * @param size buffer size + * + * @see av_hex_dump, av_pkt_dump2, av_pkt_dump_log2 + */ +void av_hex_dump_log(void *avcl, int level, uint8_t *buf, int size); + +/** + * Send a nice dump of a packet to the specified file stream. + * + * @param f The file stream pointer where the dump should be sent to. + * @param pkt packet to dump + * @param dump_payload True if the payload must be displayed, too. + * @param st AVStream that the packet belongs to + */ +void av_pkt_dump2(FILE *f, AVPacket *pkt, int dump_payload, AVStream *st); + + +/** + * Send a nice dump of a packet to the log. + * + * @param avcl A pointer to an arbitrary struct of which the first field is a + * pointer to an AVClass struct. + * @param level The importance level of the message, lower values signifying + * higher importance. + * @param pkt packet to dump + * @param dump_payload True if the payload must be displayed, too. + * @param st AVStream that the packet belongs to + */ +void av_pkt_dump_log2(void *avcl, int level, AVPacket *pkt, int dump_payload, + AVStream *st); + +#if FF_API_PKT_DUMP +attribute_deprecated void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload); +attribute_deprecated void av_pkt_dump_log(void *avcl, int level, AVPacket *pkt, + int dump_payload); +#endif + +/** + * Initialize libavformat and register all the muxers, demuxers and + * protocols. If you do not call this function, then you can select + * exactly which formats you want to support. + * + * @see av_register_input_format() + * @see av_register_output_format() + * @see av_register_protocol() + */ +void av_register_all(void); + +/** + * Get the CodecID for the given codec tag tag. + * If no codec id is found returns CODEC_ID_NONE. + * + * @param tags list of supported codec_id-codec_tag pairs, as stored + * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag + */ +enum CodecID av_codec_get_id(const struct AVCodecTag * const *tags, unsigned int tag); + +/** + * Get the codec tag for the given codec id id. + * If no codec tag is found returns 0. + * + * @param tags list of supported codec_id-codec_tag pairs, as stored + * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag + */ +unsigned int av_codec_get_tag(const struct AVCodecTag * const *tags, enum CodecID id); + +/* media file input */ + +/** + * Find AVInputFormat based on the short name of the input format. + */ +AVInputFormat *av_find_input_format(const char *short_name); + +/** + * Guess the file format. + * + * @param is_opened Whether the file is already opened; determines whether + * demuxers with or without AVFMT_NOFILE are probed. + */ +AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened); + +/** + * Guess the file format. + * + * @param is_opened Whether the file is already opened; determines whether + * demuxers with or without AVFMT_NOFILE are probed. + * @param score_max A probe score larger that this is required to accept a + * detection, the variable is set to the actual detection + * score afterwards. + * If the score is <= AVPROBE_SCORE_MAX / 4 it is recommended + * to retry with a larger probe buffer. + */ +AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max); + +/** + * Guess the file format. + * + * @param is_opened Whether the file is already opened; determines whether + * demuxers with or without AVFMT_NOFILE are probed. + * @param score_ret The score of the best detection. + */ +AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score_ret); + +/** + * Probe a bytestream to determine the input format. Each time a probe returns + * with a score that is too low, the probe buffer size is increased and another + * attempt is made. When the maximum probe size is reached, the input format + * with the highest score is returned. + * + * @param pb the bytestream to probe + * @param fmt the input format is put here + * @param filename the filename of the stream + * @param logctx the log context + * @param offset the offset within the bytestream to probe from + * @param max_probe_size the maximum probe buffer size (zero for default) + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code otherwise + */ +int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt, + const char *filename, void *logctx, + unsigned int offset, unsigned int max_probe_size); + +#if FF_API_FORMAT_PARAMETERS +/** + * Allocate all the structures needed to read an input stream. + * This does not open the needed codecs for decoding the stream[s]. + * @deprecated use avformat_open_input instead. + */ +attribute_deprecated int av_open_input_stream(AVFormatContext **ic_ptr, + AVIOContext *pb, const char *filename, + AVInputFormat *fmt, AVFormatParameters *ap); + +/** + * Open a media file as input. The codecs are not opened. Only the file + * header (if present) is read. + * + * @param ic_ptr The opened media file handle is put here. + * @param filename filename to open + * @param fmt If non-NULL, force the file format to use. + * @param buf_size optional buffer size (zero if default is OK) + * @param ap Additional parameters needed when opening the file + * (NULL if default). + * @return 0 if OK, AVERROR_xxx otherwise + * + * @deprecated use avformat_open_input instead. + */ +attribute_deprecated int av_open_input_file(AVFormatContext **ic_ptr, const char *filename, + AVInputFormat *fmt, + int buf_size, + AVFormatParameters *ap); +#endif + +/** + * Open an input stream and read the header. The codecs are not opened. + * The stream must be closed with av_close_input_file(). + * + * @param ps Pointer to user-supplied AVFormatContext (allocated by avformat_alloc_context). + * May be a pointer to NULL, in which case an AVFormatContext is allocated by this + * function and written into ps. + * Note that a user-supplied AVFormatContext will be freed on failure. + * @param filename Name of the stream to open. + * @param fmt If non-NULL, this parameter forces a specific input format. + * Otherwise the format is autodetected. + * @param options A dictionary filled with AVFormatContext and demuxer-private options. + * On return this parameter will be destroyed and replaced with a dict containing + * options that were not found. May be NULL. + * + * @return 0 on success, a negative AVERROR on failure. + * + * @note If you want to use custom IO, preallocate the format context and set its pb field. + */ +int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options); + +int av_demuxer_open(AVFormatContext *ic, AVFormatParameters *ap); + +/** + * Allocate an AVFormatContext. + * avformat_free_context() can be used to free the context and everything + * allocated by the framework within it. + */ +AVFormatContext *avformat_alloc_context(void); + +#if FF_API_ALLOC_OUTPUT_CONTEXT +/** + * @deprecated deprecated in favor of avformat_alloc_output_context2() + */ +attribute_deprecated +AVFormatContext *avformat_alloc_output_context(const char *format, + AVOutputFormat *oformat, + const char *filename); +#endif + +/** + * Allocate an AVFormatContext for an output format. + * avformat_free_context() can be used to free the context and + * everything allocated by the framework within it. + * + * @param *ctx is set to the created format context, or to NULL in + * case of failure + * @param oformat format to use for allocating the context, if NULL + * format_name and filename are used instead + * @param format_name the name of output format to use for allocating the + * context, if NULL filename is used instead + * @param filename the name of the filename to use for allocating the + * context, may be NULL + * @return >= 0 in case of success, a negative AVERROR code in case of + * failure + */ +int avformat_alloc_output_context2(AVFormatContext **ctx, AVOutputFormat *oformat, + const char *format_name, const char *filename); + +#if FF_API_FORMAT_PARAMETERS +/** + * Read packets of a media file to get stream information. This + * is useful for file formats with no headers such as MPEG. This + * function also computes the real framerate in case of MPEG-2 repeat + * frame mode. + * The logical file position is not changed by this function; + * examined packets may be buffered for later processing. + * + * @param ic media file handle + * @return >=0 if OK, AVERROR_xxx on error + * @todo Let the user decide somehow what information is needed so that + * we do not waste time getting stuff the user does not need. + * + * @deprecated use avformat_find_stream_info. + */ +attribute_deprecated +int av_find_stream_info(AVFormatContext *ic); +#endif + +/** + * Read packets of a media file to get stream information. This + * is useful for file formats with no headers such as MPEG. This + * function also computes the real framerate in case of MPEG-2 repeat + * frame mode. + * The logical file position is not changed by this function; + * examined packets may be buffered for later processing. + * + * @param ic media file handle + * @param options If non-NULL, an ic.nb_streams long array of pointers to + * dictionaries, where i-th member contains options for + * codec corresponding to i-th stream. + * On return each dictionary will be filled with options that were not found. + * @return >=0 if OK, AVERROR_xxx on error + * + * @note this function isn't guaranteed to open all the codecs, so + * options being non-empty at return is a perfectly normal behavior. + * + * @todo Let the user decide somehow what information is needed so that + * we do not waste time getting stuff the user does not need. + */ +int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options); + +/** + * Find the programs which belong to a given stream. + * + * @param ic media file handle + * @param last the last found program, the search will start after this + * program, or from the beginning if it is NULL + * @param s stream index + * @return the next program which belongs to s, NULL if no program is found or + * the last program is not among the programs of ic. + */ +AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s); + +/** + * Find the "best" stream in the file. + * The best stream is determined according to various heuristics as the most + * likely to be what the user expects. + * If the decoder parameter is non-NULL, av_find_best_stream will find the + * default decoder for the stream's codec; streams for which no decoder can + * be found are ignored. + * + * @param ic media file handle + * @param type stream type: video, audio, subtitles, etc. + * @param wanted_stream_nb user-requested stream number, + * or -1 for automatic selection + * @param related_stream try to find a stream related (eg. in the same + * program) to this one, or -1 if none + * @param decoder_ret if non-NULL, returns the decoder for the + * selected stream + * @param flags flags; none are currently defined + * @return the non-negative stream number in case of success, + * AVERROR_STREAM_NOT_FOUND if no stream with the requested type + * could be found, + * AVERROR_DECODER_NOT_FOUND if streams were found but no decoder + * @note If av_find_best_stream returns successfully and decoder_ret is not + * NULL, then *decoder_ret is guaranteed to be set to a valid AVCodec. + */ +int av_find_best_stream(AVFormatContext *ic, + enum AVMediaType type, + int wanted_stream_nb, + int related_stream, + AVCodec **decoder_ret, + int flags); + +/** + * Read a transport packet from a media file. + * + * This function is obsolete and should never be used. + * Use av_read_frame() instead. + * + * @param s media file handle + * @param pkt is filled + * @return 0 if OK, AVERROR_xxx on error + */ +int av_read_packet(AVFormatContext *s, AVPacket *pkt); + +/** + * Return the next frame of a stream. + * This function returns what is stored in the file, and does not validate + * that what is there are valid frames for the decoder. It will split what is + * stored in the file into frames and return one for each call. It will not + * omit invalid data between valid frames so as to give the decoder the maximum + * information possible for decoding. + * + * The returned packet is valid + * until the next av_read_frame() or until av_close_input_file() and + * must be freed with av_free_packet. For video, the packet contains + * exactly one frame. For audio, it contains an integer number of + * frames if each frame has a known fixed size (e.g. PCM or ADPCM + * data). If the audio frames have a variable size (e.g. MPEG audio), + * then it contains one frame. + * + * pkt->pts, pkt->dts and pkt->duration are always set to correct + * values in AVStream.time_base units (and guessed if the format cannot + * provide them). pkt->pts can be AV_NOPTS_VALUE if the video format + * has B-frames, so it is better to rely on pkt->dts if you do not + * decompress the payload. + * + * @return 0 if OK, < 0 on error or end of file + */ +int av_read_frame(AVFormatContext *s, AVPacket *pkt); + +/** + * Seek to the keyframe at timestamp. + * 'timestamp' in 'stream_index'. + * @param stream_index If stream_index is (-1), a default + * stream is selected, and timestamp is automatically converted + * from AV_TIME_BASE units to the stream specific time_base. + * @param timestamp Timestamp in AVStream.time_base units + * or, if no stream is specified, in AV_TIME_BASE units. + * @param flags flags which select direction and seeking mode + * @return >= 0 on success + */ +int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, + int flags); + +/** + * Seek to timestamp ts. + * Seeking will be done so that the point from which all active streams + * can be presented successfully will be closest to ts and within min/max_ts. + * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL. + * + * If flags contain AVSEEK_FLAG_BYTE, then all timestamps are in bytes and + * are the file position (this may not be supported by all demuxers). + * If flags contain AVSEEK_FLAG_FRAME, then all timestamps are in frames + * in the stream with stream_index (this may not be supported by all demuxers). + * Otherwise all timestamps are in units of the stream selected by stream_index + * or if stream_index is -1, in AV_TIME_BASE units. + * If flags contain AVSEEK_FLAG_ANY, then non-keyframes are treated as + * keyframes (this may not be supported by all demuxers). + * + * @param stream_index index of the stream which is used as time base reference + * @param min_ts smallest acceptable timestamp + * @param ts target timestamp + * @param max_ts largest acceptable timestamp + * @param flags flags + * @return >=0 on success, error code otherwise + * + * @note This is part of the new seek API which is still under construction. + * Thus do not use this yet. It may change at any time, do not expect + * ABI compatibility yet! + */ +int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags); + +/** + * Start playing a network-based stream (e.g. RTSP stream) at the + * current position. + */ +int av_read_play(AVFormatContext *s); + +/** + * Pause a network-based stream (e.g. RTSP stream). + * + * Use av_read_play() to resume it. + */ +int av_read_pause(AVFormatContext *s); + +/** + * Free a AVFormatContext allocated by av_open_input_stream. + * @param s context to free + */ +void av_close_input_stream(AVFormatContext *s); + +/** + * Close a media file (but not its codecs). + * + * @param s media file handle + */ +void av_close_input_file(AVFormatContext *s); + +/** + * Free an AVFormatContext and all its streams. + * @param s context to free + */ +void avformat_free_context(AVFormatContext *s); + +#if FF_API_NEW_STREAM +/** + * Add a new stream to a media file. + * + * Can only be called in the read_header() function. If the flag + * AVFMTCTX_NOHEADER is in the format context, then new streams + * can be added in read_packet too. + * + * @param s media file handle + * @param id file-format-dependent stream ID + */ +attribute_deprecated +AVStream *av_new_stream(AVFormatContext *s, int id); +#endif + +/** + * Add a new stream to a media file. + * + * When demuxing, it is called by the demuxer in read_header(). If the + * flag AVFMTCTX_NOHEADER is set in s.ctx_flags, then it may also + * be called in read_packet(). + * + * When muxing, should be called by the user before avformat_write_header(). + * + * @param c If non-NULL, the AVCodecContext corresponding to the new stream + * will be initialized to use this codec. This is needed for e.g. codec-specific + * defaults to be set, so codec should be provided if it is known. + * + * @return newly created stream or NULL on error. + */ +AVStream *avformat_new_stream(AVFormatContext *s, AVCodec *c); + +AVProgram *av_new_program(AVFormatContext *s, int id); + +/** + * Set the pts for a given stream. If the new values would be invalid + * (<= 0), it leaves the AVStream unchanged. + * + * @param s stream + * @param pts_wrap_bits number of bits effectively used by the pts + * (used for wrap control, 33 is the value for MPEG) + * @param pts_num numerator to convert to seconds (MPEG: 1) + * @param pts_den denominator to convert to seconds (MPEG: 90000) + */ +void av_set_pts_info(AVStream *s, int pts_wrap_bits, + unsigned int pts_num, unsigned int pts_den); + +#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward +#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes +#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non-keyframes +#define AVSEEK_FLAG_FRAME 8 ///< seeking based on frame number + +int av_find_default_stream_index(AVFormatContext *s); + +/** + * Get the index for a specific timestamp. + * @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond + * to the timestamp which is <= the requested one, if backward + * is 0, then it will be >= + * if AVSEEK_FLAG_ANY seek to any frame, only keyframes otherwise + * @return < 0 if no such timestamp could be found + */ +int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags); + +/** + * Add an index entry into a sorted list. Update the entry if the list + * already contains it. + * + * @param timestamp timestamp in the time base of the given stream + */ +int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, + int size, int distance, int flags); + +#if FF_API_SEEK_PUBLIC +attribute_deprecated +int av_seek_frame_binary(AVFormatContext *s, int stream_index, + int64_t target_ts, int flags); +attribute_deprecated +void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp); +attribute_deprecated +int64_t av_gen_search(AVFormatContext *s, int stream_index, + int64_t target_ts, int64_t pos_min, + int64_t pos_max, int64_t pos_limit, + int64_t ts_min, int64_t ts_max, + int flags, int64_t *ts_ret, + int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t )); +#endif + +/** + * media file output + */ +#if FF_API_FORMAT_PARAMETERS +/** + * @deprecated pass the options to avformat_write_header directly. + */ +attribute_deprecated int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap); +#endif + +/** + * Split a URL string into components. + * + * The pointers to buffers for storing individual components may be null, + * in order to ignore that component. Buffers for components not found are + * set to empty strings. If the port is not found, it is set to a negative + * value. + * + * @param proto the buffer for the protocol + * @param proto_size the size of the proto buffer + * @param authorization the buffer for the authorization + * @param authorization_size the size of the authorization buffer + * @param hostname the buffer for the host name + * @param hostname_size the size of the hostname buffer + * @param port_ptr a pointer to store the port number in + * @param path the buffer for the path + * @param path_size the size of the path buffer + * @param url the URL to split + */ +void av_url_split(char *proto, int proto_size, + char *authorization, int authorization_size, + char *hostname, int hostname_size, + int *port_ptr, + char *path, int path_size, + const char *url); + +/** + * Allocate the stream private data and write the stream header to + * an output media file. + * + * @param s Media file handle, must be allocated with avformat_alloc_context(). + * Its oformat field must be set to the desired output format; + * Its pb field must be set to an already openened AVIOContext. + * @param options An AVDictionary filled with AVFormatContext and muxer-private options. + * On return this parameter will be destroyed and replaced with a dict containing + * options that were not found. May be NULL. + * + * @return 0 on success, negative AVERROR on failure. + * + * @see av_opt_find, av_dict_set, avio_open, av_oformat_next. + */ +int avformat_write_header(AVFormatContext *s, AVDictionary **options); + +#if FF_API_FORMAT_PARAMETERS +/** + * Allocate the stream private data and write the stream header to an + * output media file. + * @note: this sets stream time-bases, if possible to stream->codec->time_base + * but for some formats it might also be some other time base + * + * @param s media file handle + * @return 0 if OK, AVERROR_xxx on error + * + * @deprecated use avformat_write_header. + */ +attribute_deprecated int av_write_header(AVFormatContext *s); +#endif + +/** + * Write a packet to an output media file. + * + * The packet shall contain one audio or video frame. + * The packet must be correctly interleaved according to the container + * specification, if not then av_interleaved_write_frame must be used. + * + * @param s media file handle + * @param pkt The packet, which contains the stream_index, buf/buf_size, + dts/pts, ... + * @return < 0 on error, = 0 if OK, 1 if end of stream wanted + */ +int av_write_frame(AVFormatContext *s, AVPacket *pkt); + +/** + * Write a packet to an output media file ensuring correct interleaving. + * + * The packet must contain one audio or video frame. + * If the packets are already correctly interleaved, the application should + * call av_write_frame() instead as it is slightly faster. It is also important + * to keep in mind that completely non-interleaved input will need huge amounts + * of memory to interleave with this, so it is preferable to interleave at the + * demuxer level. + * + * @param s media file handle + * @param pkt The packet, which contains the stream_index, buf/buf_size, + dts/pts, ... + * @return < 0 on error, = 0 if OK, 1 if end of stream wanted + */ +int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt); + +/** + * Interleave a packet per dts in an output media file. + * + * Packets with pkt->destruct == av_destruct_packet will be freed inside this + * function, so they cannot be used after it. Note that calling av_free_packet() + * on them is still safe. + * + * @param s media file handle + * @param out the interleaved packet will be output here + * @param pkt the input packet + * @param flush 1 if no further packets are available as input and all + * remaining packets should be output + * @return 1 if a packet was output, 0 if no packet could be output, + * < 0 if an error occurred + */ +int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, + AVPacket *pkt, int flush); + +/** + * Write the stream trailer to an output media file and free the + * file private data. + * + * May only be called after a successful call to av_write_header. + * + * @param s media file handle + * @return 0 if OK, AVERROR_xxx on error + */ +int av_write_trailer(AVFormatContext *s); + +/** + * Get timing information for the data currently output. + * The exact meaning of "currently output" depends on the format. + * It is mostly relevant for devices that have an internal buffer and/or + * work in real time. + * @param s media file handle + * @param stream stream in the media file + * @param dts[out] DTS of the last packet output for the stream, in stream + * time_base units + * @param wall[out] absolute time when that packet whas output, + * in microsecond + * @return 0 if OK, AVERROR(ENOSYS) if the format does not support it + * Note: some formats or devices may not allow to measure dts and wall + * atomically. + */ +int av_get_output_timestamp(struct AVFormatContext *s, int stream, + int64_t *dts, int64_t *wall); + +#if FF_API_DUMP_FORMAT +/** + * @deprecated Deprecated in favor of av_dump_format(). + */ +attribute_deprecated void dump_format(AVFormatContext *ic, + int index, + const char *url, + int is_output); +#endif + +void av_dump_format(AVFormatContext *ic, + int index, + const char *url, + int is_output); + +#if FF_API_PARSE_DATE +/** + * Parse datestr and return a corresponding number of microseconds. + * + * @param datestr String representing a date or a duration. + * See av_parse_time() for the syntax of the provided string. + * @deprecated in favor of av_parse_time() + */ +attribute_deprecated +int64_t parse_date(const char *datestr, int duration); +#endif + +/** + * Get the current time in microseconds. + */ +int64_t av_gettime(void); + +#if FF_API_FIND_INFO_TAG +/** + * @deprecated use av_find_info_tag in libavutil instead. + */ +attribute_deprecated int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info); +#endif + +/** + * Return in 'buf' the path with '%d' replaced by a number. + * + * Also handles the '%0nd' format where 'n' is the total number + * of digits and '%%'. + * + * @param buf destination buffer + * @param buf_size destination buffer size + * @param path numbered sequence string + * @param number frame number + * @return 0 if OK, -1 on format error + */ +int av_get_frame_filename(char *buf, int buf_size, + const char *path, int number); + +/** + * Check whether filename actually is a numbered sequence generator. + * + * @param filename possible numbered sequence string + * @return 1 if a valid numbered sequence string, 0 otherwise + */ +int av_filename_number_test(const char *filename); + +/** + * Generate an SDP for an RTP session. + * + * @param ac array of AVFormatContexts describing the RTP streams. If the + * array is composed by only one context, such context can contain + * multiple AVStreams (one AVStream per RTP stream). Otherwise, + * all the contexts in the array (an AVCodecContext per RTP stream) + * must contain only one AVStream. + * @param n_files number of AVCodecContexts contained in ac + * @param buf buffer where the SDP will be stored (must be allocated by + * the caller) + * @param size the size of the buffer + * @return 0 if OK, AVERROR_xxx on error + */ +int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size); + +#if FF_API_SDP_CREATE +attribute_deprecated int avf_sdp_create(AVFormatContext *ac[], int n_files, char *buff, int size); +#endif + +/** + * Return a positive value if the given filename has one of the given + * extensions, 0 otherwise. + * + * @param extensions a comma-separated list of filename extensions + */ +int av_match_ext(const char *filename, const char *extensions); + +/** + * Test if the given container can store a codec. + * + * @param std_compliance standards compliance level, one of FF_COMPLIANCE_* + * + * @return 1 if codec with ID codec_id can be stored in ofmt, 0 if it cannot. + * A negative number if this information is not available. + */ +int avformat_query_codec(AVOutputFormat *ofmt, enum CodecID codec_id, int std_compliance); + +/** + * Get the AVClass for AVFormatContext. It can be used in combination with + * AV_OPT_SEARCH_FAKE_OBJ for examining options. + * + * @see av_opt_find(). + */ +const AVClass *avformat_get_class(void); + +/** + * Do global initialization of network components. This is optional, + * but recommended, since it avoids the overhead of implicitly + * doing the setup for each session. + * + * Calling this function will become mandatory if using network + * protocols at some major version bump. + */ +int avformat_network_init(void); + +/** + * Undo the initialization done by avformat_network_init. + */ +int avformat_network_deinit(void); + +#endif /* AVFORMAT_AVFORMAT_H */ diff --git a/ffmpeg 0.8/include/libavformat/avio.h b/ffmpeg 0.8/include/libavformat/avio.h new file mode 100644 index 000000000..88fe1577f --- /dev/null +++ b/ffmpeg 0.8/include/libavformat/avio.h @@ -0,0 +1,684 @@ +/* + * copyright (c) 2001 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#ifndef AVFORMAT_AVIO_H +#define AVFORMAT_AVIO_H + +/** + * @file + * Buffered I/O operations + */ + +#include + +#include "libavutil/common.h" +#include "libavutil/dict.h" +#include "libavutil/log.h" + +#include "libavformat/version.h" + + +#define AVIO_SEEKABLE_NORMAL 0x0001 /**< Seeking works like for a local file */ + +/** + * Callback for checking whether to abort blocking functions. + * AVERROR_EXIT is returned in this case by the interrupted + * function. During blocking operations, callback is called with + * opaque as parameter. If the callback returns 1, the + * blocking operation will be aborted. + * + * No members can be added to this struct without a major bump, if + * new elements have been added after this struct in AVFormatContext + * or AVIOContext. + */ +typedef struct { + int (*callback)(void*); + void *opaque; +} AVIOInterruptCB; + +/** + * Bytestream IO Context. + * New fields can be added to the end with minor version bumps. + * Removal, reordering and changes to existing fields require a major + * version bump. + * sizeof(AVIOContext) must not be used outside libav*. + * + * @note None of the function pointers in AVIOContext should be called + * directly, they should only be set by the client application + * when implementing custom I/O. Normally these are set to the + * function pointers specified in avio_alloc_context() + */ +typedef struct { +#if !FF_API_OLD_AVIO + /** + * A class for private options. + * + * If this AVIOContext is created by avio_open2(), av_class is set and + * passes the options down to protocols. + * + * If this AVIOContext is manually allocated, then av_class may be set by + * the caller. + * + * warning -- this field can be NULL, be sure to not pass this AVIOContext + * to any av_opt_* functions in that case. + */ + AVClass *av_class; +#endif + unsigned char *buffer; /**< Start of the buffer. */ + int buffer_size; /**< Maximum buffer size */ + unsigned char *buf_ptr; /**< Current position in the buffer */ + unsigned char *buf_end; /**< End of the data, may be less than + buffer+buffer_size if the read function returned + less data than requested, e.g. for streams where + no more data has been received yet. */ + void *opaque; /**< A private pointer, passed to the read/write/seek/... + functions. */ + int (*read_packet)(void *opaque, uint8_t *buf, int buf_size); + int (*write_packet)(void *opaque, uint8_t *buf, int buf_size); + int64_t (*seek)(void *opaque, int64_t offset, int whence); + int64_t pos; /**< position in the file of the current buffer */ + int must_flush; /**< true if the next seek should flush */ + int eof_reached; /**< true if eof reached */ + int write_flag; /**< true if open for writing */ +#if FF_API_OLD_AVIO + attribute_deprecated int is_streamed; +#endif + int max_packet_size; + unsigned long checksum; + unsigned char *checksum_ptr; + unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size); + int error; /**< contains the error code or 0 if no error happened */ + /** + * Pause or resume playback for network streaming protocols - e.g. MMS. + */ + int (*read_pause)(void *opaque, int pause); + /** + * Seek to a given timestamp in stream with the specified stream_index. + * Needed for some network streaming protocols which don't support seeking + * to byte position. + */ + int64_t (*read_seek)(void *opaque, int stream_index, + int64_t timestamp, int flags); + /** + * A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable. + */ + int seekable; +} AVIOContext; + +/* unbuffered I/O */ + +#if FF_API_OLD_AVIO +/** + * URL Context. + * New fields can be added to the end with minor version bumps. + * Removal, reordering and changes to existing fields require a major + * version bump. + * sizeof(URLContext) must not be used outside libav*. + * @deprecated This struct will be made private + */ +typedef struct URLContext { + const AVClass *av_class; ///< information for av_log(). Set by url_open(). + struct URLProtocol *prot; + int flags; + int is_streamed; /**< true if streamed (no seek possible), default = false */ + int max_packet_size; /**< if non zero, the stream is packetized with this max packet size */ + void *priv_data; + char *filename; /**< specified URL */ + int is_connected; + AVIOInterruptCB interrupt_callback; +} URLContext; + +#define URL_PROTOCOL_FLAG_NESTED_SCHEME 1 /*< The protocol name can be the first part of a nested protocol scheme */ + +/** + * @deprecated This struct is to be made private. Use the higher-level + * AVIOContext-based API instead. + */ +typedef struct URLProtocol { + const char *name; + int (*url_open)(URLContext *h, const char *url, int flags); + int (*url_read)(URLContext *h, unsigned char *buf, int size); + int (*url_write)(URLContext *h, const unsigned char *buf, int size); + int64_t (*url_seek)(URLContext *h, int64_t pos, int whence); + int (*url_close)(URLContext *h); + struct URLProtocol *next; + int (*url_read_pause)(URLContext *h, int pause); + int64_t (*url_read_seek)(URLContext *h, int stream_index, + int64_t timestamp, int flags); + int (*url_get_file_handle)(URLContext *h); + int priv_data_size; + const AVClass *priv_data_class; + int flags; + int (*url_check)(URLContext *h, int mask); +} URLProtocol; + +typedef struct URLPollEntry { + URLContext *handle; + int events; + int revents; +} URLPollEntry; + +/* not implemented */ +attribute_deprecated int url_poll(URLPollEntry *poll_table, int n, int timeout); + +/** + * @name URL open modes + * The flags argument to url_open and cosins must be one of the following + * constants, optionally ORed with other flags. + * @{ + */ +#define URL_RDONLY 1 /**< read-only */ +#define URL_WRONLY 2 /**< write-only */ +#define URL_RDWR (URL_RDONLY|URL_WRONLY) /**< read-write */ +/** + * @} + */ + +/** + * Use non-blocking mode. + * If this flag is set, operations on the context will return + * AVERROR(EAGAIN) if they can not be performed immediately. + * If this flag is not set, operations on the context will never return + * AVERROR(EAGAIN). + * Note that this flag does not affect the opening/connecting of the + * context. Connecting a protocol will always block if necessary (e.g. on + * network protocols) but never hang (e.g. on busy devices). + * Warning: non-blocking protocols is work-in-progress; this flag may be + * silently ignored. + */ +#define URL_FLAG_NONBLOCK 4 + +typedef int URLInterruptCB(void); +extern URLInterruptCB *url_interrupt_cb; + +/** + * @defgroup old_url_funcs Old url_* functions + * The following functions are deprecated. Use the buffered API based on #AVIOContext instead. + * @{ + */ +attribute_deprecated int url_open_protocol (URLContext **puc, struct URLProtocol *up, + const char *url, int flags); +attribute_deprecated int url_alloc(URLContext **h, const char *url, int flags); +attribute_deprecated int url_connect(URLContext *h); +attribute_deprecated int url_open(URLContext **h, const char *url, int flags); +attribute_deprecated int url_read(URLContext *h, unsigned char *buf, int size); +attribute_deprecated int url_read_complete(URLContext *h, unsigned char *buf, int size); +attribute_deprecated int url_write(URLContext *h, const unsigned char *buf, int size); +attribute_deprecated int64_t url_seek(URLContext *h, int64_t pos, int whence); +attribute_deprecated int url_close(URLContext *h); +attribute_deprecated int64_t url_filesize(URLContext *h); +attribute_deprecated int url_get_file_handle(URLContext *h); +attribute_deprecated int url_get_max_packet_size(URLContext *h); +attribute_deprecated void url_get_filename(URLContext *h, char *buf, int buf_size); +attribute_deprecated int av_url_read_pause(URLContext *h, int pause); +attribute_deprecated int64_t av_url_read_seek(URLContext *h, int stream_index, + int64_t timestamp, int flags); +attribute_deprecated void url_set_interrupt_cb(int (*interrupt_cb)(void)); + +/** + * returns the next registered protocol after the given protocol (the first if + * NULL is given), or NULL if protocol is the last one. + */ +URLProtocol *av_protocol_next(URLProtocol *p); + +/** + * Register the URLProtocol protocol. + * + * @param size the size of the URLProtocol struct referenced + */ +attribute_deprecated int av_register_protocol2(URLProtocol *protocol, int size); +/** + * @} + */ + + +typedef attribute_deprecated AVIOContext ByteIOContext; + +attribute_deprecated int init_put_byte(AVIOContext *s, + unsigned char *buffer, + int buffer_size, + int write_flag, + void *opaque, + int (*read_packet)(void *opaque, uint8_t *buf, int buf_size), + int (*write_packet)(void *opaque, uint8_t *buf, int buf_size), + int64_t (*seek)(void *opaque, int64_t offset, int whence)); +attribute_deprecated AVIOContext *av_alloc_put_byte( + unsigned char *buffer, + int buffer_size, + int write_flag, + void *opaque, + int (*read_packet)(void *opaque, uint8_t *buf, int buf_size), + int (*write_packet)(void *opaque, uint8_t *buf, int buf_size), + int64_t (*seek)(void *opaque, int64_t offset, int whence)); + +/** + * @defgroup old_avio_funcs Old put_/get_*() functions + * The following functions are deprecated. Use the "avio_"-prefixed functions instead. + * @{ + */ +attribute_deprecated int get_buffer(AVIOContext *s, unsigned char *buf, int size); +attribute_deprecated int get_partial_buffer(AVIOContext *s, unsigned char *buf, int size); +attribute_deprecated int get_byte(AVIOContext *s); +attribute_deprecated unsigned int get_le16(AVIOContext *s); +attribute_deprecated unsigned int get_le24(AVIOContext *s); +attribute_deprecated unsigned int get_le32(AVIOContext *s); +attribute_deprecated uint64_t get_le64(AVIOContext *s); +attribute_deprecated unsigned int get_be16(AVIOContext *s); +attribute_deprecated unsigned int get_be24(AVIOContext *s); +attribute_deprecated unsigned int get_be32(AVIOContext *s); +attribute_deprecated uint64_t get_be64(AVIOContext *s); + +attribute_deprecated void put_byte(AVIOContext *s, int b); +attribute_deprecated void put_nbyte(AVIOContext *s, int b, int count); +attribute_deprecated void put_buffer(AVIOContext *s, const unsigned char *buf, int size); +attribute_deprecated void put_le64(AVIOContext *s, uint64_t val); +attribute_deprecated void put_be64(AVIOContext *s, uint64_t val); +attribute_deprecated void put_le32(AVIOContext *s, unsigned int val); +attribute_deprecated void put_be32(AVIOContext *s, unsigned int val); +attribute_deprecated void put_le24(AVIOContext *s, unsigned int val); +attribute_deprecated void put_be24(AVIOContext *s, unsigned int val); +attribute_deprecated void put_le16(AVIOContext *s, unsigned int val); +attribute_deprecated void put_be16(AVIOContext *s, unsigned int val); +attribute_deprecated void put_tag(AVIOContext *s, const char *tag); +/** + * @} + */ + +attribute_deprecated int av_url_read_fpause(AVIOContext *h, int pause); +attribute_deprecated int64_t av_url_read_fseek (AVIOContext *h, int stream_index, + int64_t timestamp, int flags); + +/** + * @defgroup old_url_f_funcs Old url_f* functions + * The following functions are deprecated, use the "avio_"-prefixed functions instead. + * @{ + */ +attribute_deprecated int url_fopen( AVIOContext **s, const char *url, int flags); +attribute_deprecated int url_fclose(AVIOContext *s); +attribute_deprecated int64_t url_fseek(AVIOContext *s, int64_t offset, int whence); +attribute_deprecated int url_fskip(AVIOContext *s, int64_t offset); +attribute_deprecated int64_t url_ftell(AVIOContext *s); +attribute_deprecated int64_t url_fsize(AVIOContext *s); +#define URL_EOF (-1) +attribute_deprecated int url_fgetc(AVIOContext *s); +attribute_deprecated int url_setbufsize(AVIOContext *s, int buf_size); +attribute_deprecated int url_fprintf(AVIOContext *s, const char *fmt, ...) av_printf_format(2, 3); +attribute_deprecated void put_flush_packet(AVIOContext *s); +attribute_deprecated int url_open_dyn_buf(AVIOContext **s); +attribute_deprecated int url_open_dyn_packet_buf(AVIOContext **s, int max_packet_size); +attribute_deprecated int url_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer); +attribute_deprecated int url_fdopen(AVIOContext **s, URLContext *h); +/** + * @} + */ + +attribute_deprecated int url_ferror(AVIOContext *s); + +attribute_deprecated int udp_set_remote_url(URLContext *h, const char *uri); +attribute_deprecated int udp_get_local_port(URLContext *h); + +attribute_deprecated void init_checksum(AVIOContext *s, + unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len), + unsigned long checksum); +attribute_deprecated unsigned long get_checksum(AVIOContext *s); +attribute_deprecated void put_strz(AVIOContext *s, const char *buf); +/** @note unlike fgets, the EOL character is not returned and a whole + line is parsed. return NULL if first char read was EOF */ +attribute_deprecated char *url_fgets(AVIOContext *s, char *buf, int buf_size); +/** + * @deprecated use avio_get_str instead + */ +attribute_deprecated char *get_strz(AVIOContext *s, char *buf, int maxlen); +/** + * @deprecated Use AVIOContext.seekable field directly. + */ +attribute_deprecated static inline int url_is_streamed(AVIOContext *s) +{ + return !s->seekable; +} +attribute_deprecated URLContext *url_fileno(AVIOContext *s); + +/** + * @deprecated use AVIOContext.max_packet_size directly. + */ +attribute_deprecated int url_fget_max_packet_size(AVIOContext *s); + +attribute_deprecated int url_open_buf(AVIOContext **s, uint8_t *buf, int buf_size, int flags); + +/** return the written or read size */ +attribute_deprecated int url_close_buf(AVIOContext *s); + +/** + * Return a non-zero value if the resource indicated by url + * exists, 0 otherwise. + * @deprecated Use avio_check instead. + */ +attribute_deprecated int url_exist(const char *url); +#endif // FF_API_OLD_AVIO + +/** + * Return AVIO_FLAG_* access flags corresponding to the access permissions + * of the resource in url, or a negative value corresponding to an + * AVERROR code in case of failure. The returned access flags are + * masked by the value in flags. + * + * @note This function is intrinsically unsafe, in the sense that the + * checked resource may change its existence or permission status from + * one call to another. Thus you should not trust the returned value, + * unless you are sure that no other processes are accessing the + * checked resource. + */ +int avio_check(const char *url, int flags); + +#if FF_API_OLD_INTERRUPT_CB +/** + * The callback is called in blocking functions to test regulary if + * asynchronous interruption is needed. AVERROR_EXIT is returned + * in this case by the interrupted function. 'NULL' means no interrupt + * callback is given. + * @deprecated Use interrupt_callback in AVFormatContext/avio_open2 + * instead. + */ +attribute_deprecated void avio_set_interrupt_cb(int (*interrupt_cb)(void)); +#endif + +/** + * Allocate and initialize an AVIOContext for buffered I/O. It must be later + * freed with av_free(). + * + * @param buffer Memory block for input/output operations via AVIOContext. + * The buffer must be allocated with av_malloc() and friends. + * @param buffer_size The buffer size is very important for performance. + * For protocols with fixed blocksize it should be set to this blocksize. + * For others a typical size is a cache page, e.g. 4kb. + * @param write_flag Set to 1 if the buffer should be writable, 0 otherwise. + * @param opaque An opaque pointer to user-specific data. + * @param read_packet A function for refilling the buffer, may be NULL. + * @param write_packet A function for writing the buffer contents, may be NULL. + * @param seek A function for seeking to specified byte position, may be NULL. + * + * @return Allocated AVIOContext or NULL on failure. + */ +AVIOContext *avio_alloc_context( + unsigned char *buffer, + int buffer_size, + int write_flag, + void *opaque, + int (*read_packet)(void *opaque, uint8_t *buf, int buf_size), + int (*write_packet)(void *opaque, uint8_t *buf, int buf_size), + int64_t (*seek)(void *opaque, int64_t offset, int whence)); + +void avio_w8(AVIOContext *s, int b); +void avio_write(AVIOContext *s, const unsigned char *buf, int size); +void avio_wl64(AVIOContext *s, uint64_t val); +void avio_wb64(AVIOContext *s, uint64_t val); +void avio_wl32(AVIOContext *s, unsigned int val); +void avio_wb32(AVIOContext *s, unsigned int val); +void avio_wl24(AVIOContext *s, unsigned int val); +void avio_wb24(AVIOContext *s, unsigned int val); +void avio_wl16(AVIOContext *s, unsigned int val); +void avio_wb16(AVIOContext *s, unsigned int val); + +/** + * Write a NULL-terminated string. + * @return number of bytes written. + */ +int avio_put_str(AVIOContext *s, const char *str); + +/** + * Convert an UTF-8 string to UTF-16LE and write it. + * @return number of bytes written. + */ +int avio_put_str16le(AVIOContext *s, const char *str); + +/** + * Passing this as the "whence" parameter to a seek function causes it to + * return the filesize without seeking anywhere. Supporting this is optional. + * If it is not supported then the seek function will return <0. + */ +#define AVSEEK_SIZE 0x10000 + +/** + * Oring this flag as into the "whence" parameter to a seek function causes it to + * seek by any means (like reopening and linear reading) or other normally unreasonble + * means that can be extreemly slow. + * This may be ignored by the seek code. + */ +#define AVSEEK_FORCE 0x20000 + +/** + * fseek() equivalent for AVIOContext. + * @return new position or AVERROR. + */ +int64_t avio_seek(AVIOContext *s, int64_t offset, int whence); + +/** + * Skip given number of bytes forward + * @return new position or AVERROR. + */ +int64_t avio_skip(AVIOContext *s, int64_t offset); + +/** + * ftell() equivalent for AVIOContext. + * @return position or AVERROR. + */ +static av_always_inline int64_t avio_tell(AVIOContext *s) +{ + return avio_seek(s, 0, SEEK_CUR); +} + +/** + * Get the filesize. + * @return filesize or AVERROR + */ +int64_t avio_size(AVIOContext *s); + +/** + * feof() equivalent for AVIOContext. + * @return non zero if and only if end of file + */ +int url_feof(AVIOContext *s); + +/** @warning currently size is limited */ +int avio_printf(AVIOContext *s, const char *fmt, ...) av_printf_format(2, 3); + +void avio_flush(AVIOContext *s); + + +/** + * Read size bytes from AVIOContext into buf. + * @return number of bytes read or AVERROR + */ +int avio_read(AVIOContext *s, unsigned char *buf, int size); + +/** + * @name Functions for reading from AVIOContext + * @{ + * + * @note return 0 if EOF, so you cannot use it if EOF handling is + * necessary + */ +int avio_r8 (AVIOContext *s); +unsigned int avio_rl16(AVIOContext *s); +unsigned int avio_rl24(AVIOContext *s); +unsigned int avio_rl32(AVIOContext *s); +uint64_t avio_rl64(AVIOContext *s); +unsigned int avio_rb16(AVIOContext *s); +unsigned int avio_rb24(AVIOContext *s); +unsigned int avio_rb32(AVIOContext *s); +uint64_t avio_rb64(AVIOContext *s); +/** + * @} + */ + +/** + * Read a string from pb into buf. The reading will terminate when either + * a NULL character was encountered, maxlen bytes have been read, or nothing + * more can be read from pb. The result is guaranteed to be NULL-terminated, it + * will be truncated if buf is too small. + * Note that the string is not interpreted or validated in any way, it + * might get truncated in the middle of a sequence for multi-byte encodings. + * + * @return number of bytes read (is always <= maxlen). + * If reading ends on EOF or error, the return value will be one more than + * bytes actually read. + */ +int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen); + +/** + * Read a UTF-16 string from pb and convert it to UTF-8. + * The reading will terminate when either a null or invalid character was + * encountered or maxlen bytes have been read. + * @return number of bytes read (is always <= maxlen) + */ +int avio_get_str16le(AVIOContext *pb, int maxlen, char *buf, int buflen); +int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen); + + +/** + * @name URL open modes + * The flags argument to avio_open must be one of the following + * constants, optionally ORed with other flags. + * @{ + */ +#define AVIO_FLAG_READ 1 /**< read-only */ +#define AVIO_FLAG_WRITE 2 /**< write-only */ +#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE) /**< read-write pseudo flag */ +/** + * @} + */ + +/** + * Use non-blocking mode. + * If this flag is set, operations on the context will return + * AVERROR(EAGAIN) if they can not be performed immediately. + * If this flag is not set, operations on the context will never return + * AVERROR(EAGAIN). + * Note that this flag does not affect the opening/connecting of the + * context. Connecting a protocol will always block if necessary (e.g. on + * network protocols) but never hang (e.g. on busy devices). + * Warning: non-blocking protocols is work-in-progress; this flag may be + * silently ignored. + */ +#define AVIO_FLAG_NONBLOCK 8 + +/** + * Create and initialize a AVIOContext for accessing the + * resource indicated by url. + * @note When the resource indicated by url has been opened in + * read+write mode, the AVIOContext can be used only for writing. + * + * @param s Used to return the pointer to the created AVIOContext. + * In case of failure the pointed to value is set to NULL. + * @param flags flags which control how the resource indicated by url + * is to be opened + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code in case of failure + */ +int avio_open(AVIOContext **s, const char *url, int flags); + +/** + * Create and initialize a AVIOContext for accessing the + * resource indicated by url. + * @note When the resource indicated by url has been opened in + * read+write mode, the AVIOContext can be used only for writing. + * + * @param s Used to return the pointer to the created AVIOContext. + * In case of failure the pointed to value is set to NULL. + * @param flags flags which control how the resource indicated by url + * is to be opened + * @param int_cb an interrupt callback to be used at the protocols level + * @param options A dictionary filled with protocol-private options. On return + * this parameter will be destroyed and replaced with a dict containing options + * that were not found. May be NULL. + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code in case of failure + */ +int avio_open2(AVIOContext **s, const char *url, int flags, + const AVIOInterruptCB *int_cb, AVDictionary **options); + +/** + * Close the resource accessed by the AVIOContext s and free it. + * This function can only be used if s was opened by avio_open(). + * + * @return 0 on success, an AVERROR < 0 on error. + */ +int avio_close(AVIOContext *s); + +/** + * Open a write only memory stream. + * + * @param s new IO context + * @return zero if no error. + */ +int avio_open_dyn_buf(AVIOContext **s); + +/** + * Return the written size and a pointer to the buffer. The buffer + * must be freed with av_free(). + * Padding of FF_INPUT_BUFFER_PADDING_SIZE is added to the buffer. + * + * @param s IO context + * @param pbuffer pointer to a byte buffer + * @return the length of the byte buffer + */ +int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer); + +/** + * Iterate through names of available protocols. + * @note it is recommanded to use av_protocol_next() instead of this + * + * @param opaque A private pointer representing current protocol. + * It must be a pointer to NULL on first iteration and will + * be updated by successive calls to avio_enum_protocols. + * @param output If set to 1, iterate over output protocols, + * otherwise over input protocols. + * + * @return A static string containing the name of current protocol or NULL + */ +const char *avio_enum_protocols(void **opaque, int output); + +/** + * Pause and resume playing - only meaningful if using a network streaming + * protocol (e.g. MMS). + * @param pause 1 for pause, 0 for resume + */ +int avio_pause(AVIOContext *h, int pause); + +/** + * Seek to a given timestamp relative to some component stream. + * Only meaningful if using a network streaming protocol (e.g. MMS.). + * @param stream_index The stream index that the timestamp is relative to. + * If stream_index is (-1) the timestamp should be in AV_TIME_BASE + * units from the beginning of the presentation. + * If a stream_index >= 0 is used and the protocol does not support + * seeking based on component streams, the call will fail with ENOTSUP. + * @param timestamp timestamp in AVStream.time_base units + * or if there is no stream specified then in AV_TIME_BASE units. + * @param flags Optional combination of AVSEEK_FLAG_BACKWARD, AVSEEK_FLAG_BYTE + * and AVSEEK_FLAG_ANY. The protocol may silently ignore + * AVSEEK_FLAG_BACKWARD and AVSEEK_FLAG_ANY, but AVSEEK_FLAG_BYTE will + * fail with ENOTSUP if used and not supported. + * @return >= 0 on success + * @see AVInputFormat::read_seek + */ +int64_t avio_seek_time(AVIOContext *h, int stream_index, + int64_t timestamp, int flags); + +#endif /* AVFORMAT_AVIO_H */ diff --git a/ffmpeg 0.8/include/libavformat/version.h b/ffmpeg 0.8/include/libavformat/version.h new file mode 100644 index 000000000..5c7ed6863 --- /dev/null +++ b/ffmpeg 0.8/include/libavformat/version.h @@ -0,0 +1,120 @@ +/* + * Version macros. + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVFORMAT_VERSION_H +#define AVFORMAT_VERSION_H + +#include "libavutil/avutil.h" + +#define LIBAVFORMAT_VERSION_MAJOR 53 +#define LIBAVFORMAT_VERSION_MINOR 21 +#define LIBAVFORMAT_VERSION_MICRO 0 + +#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ + LIBAVFORMAT_VERSION_MINOR, \ + LIBAVFORMAT_VERSION_MICRO) +#define LIBAVFORMAT_VERSION AV_VERSION(LIBAVFORMAT_VERSION_MAJOR, \ + LIBAVFORMAT_VERSION_MINOR, \ + LIBAVFORMAT_VERSION_MICRO) +#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT + +#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION) + +/** + * Those FF_API_* defines are not part of public API. + * They may change, break or disappear at any time. + */ +#ifndef FF_API_OLD_METADATA2 +#define FF_API_OLD_METADATA2 (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_READ_SEEK +#define FF_API_READ_SEEK (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_OLD_AVIO +#define FF_API_OLD_AVIO (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_DUMP_FORMAT +#define FF_API_DUMP_FORMAT (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_PARSE_DATE +#define FF_API_PARSE_DATE (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_FIND_INFO_TAG +#define FF_API_FIND_INFO_TAG (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_PKT_DUMP +#define FF_API_PKT_DUMP (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_GUESS_IMG2_CODEC +#define FF_API_GUESS_IMG2_CODEC (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_SDP_CREATE +#define FF_API_SDP_CREATE (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_ALLOC_OUTPUT_CONTEXT +#define FF_API_ALLOC_OUTPUT_CONTEXT (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_FORMAT_PARAMETERS +#define FF_API_FORMAT_PARAMETERS (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_FLAG_RTP_HINT +#define FF_API_FLAG_RTP_HINT (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_AVSTREAM_QUALITY +#define FF_API_AVSTREAM_QUALITY (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_LOOP_INPUT +#define FF_API_LOOP_INPUT (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_LOOP_OUTPUT +#define FF_API_LOOP_OUTPUT (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_TIMESTAMP +#define FF_API_TIMESTAMP (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_FILESIZE +#define FF_API_FILESIZE (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_MUXRATE +#define FF_API_MUXRATE (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_RTSP_URL_OPTIONS +#define FF_API_RTSP_URL_OPTIONS (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_NEW_STREAM +#define FF_API_NEW_STREAM (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_PRELOAD +#define FF_API_PRELOAD (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_STREAM_COPY +#define FF_API_STREAM_COPY (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_SEEK_PUBLIC +#define FF_API_SEEK_PUBLIC (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_REORDER_PRIVATE +#define FF_API_REORDER_PRIVATE (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif +#ifndef FF_API_OLD_INTERRUPT_CB +#define FF_API_OLD_INTERRUPT_CB (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif + +#endif /* AVFORMAT_VERSION_H */ diff --git a/ffmpeg 0.8/include/libavutil/adler32.h b/ffmpeg 0.8/include/libavutil/adler32.h new file mode 100644 index 000000000..0b890bcc1 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/adler32.h @@ -0,0 +1,42 @@ +/* + * copyright (c) 2006 Mans Rullgard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_ADLER32_H +#define AVUTIL_ADLER32_H + +#include +#include "attributes.h" + +/** + * Calculate the Adler32 checksum of a buffer. + * + * Passing the return value to a subsequent av_adler32_update() call + * allows the checksum of multiple buffers to be calculated as though + * they were concatenated. + * + * @param adler initial checksum value + * @param buf pointer to input buffer + * @param len size of input buffer + * @return updated checksum + */ +unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf, + unsigned int len) av_pure; + +#endif /* AVUTIL_ADLER32_H */ diff --git a/ffmpeg 0.8/include/libavutil/aes.h b/ffmpeg 0.8/include/libavutil/aes.h new file mode 100644 index 000000000..368f70cbb --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/aes.h @@ -0,0 +1,47 @@ +/* + * copyright (c) 2007 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_AES_H +#define AVUTIL_AES_H + +#include + +extern const int av_aes_size; + +struct AVAES; + +/** + * Initialize an AVAES context. + * @param key_bits 128, 192 or 256 + * @param decrypt 0 for encryption, 1 for decryption + */ +int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt); + +/** + * Encrypt or decrypt a buffer using a previously initialized context. + * @param count number of 16 byte blocks + * @param dst destination array, can be equal to src + * @param src source array, can be equal to dst + * @param iv initialization vector for CBC mode, if NULL then ECB will be used + * @param decrypt 0 for encryption, 1 for decryption + */ +void av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt); + +#endif /* AVUTIL_AES_H */ diff --git a/ffmpeg 0.8/include/libavutil/attributes.h b/ffmpeg 0.8/include/libavutil/attributes.h new file mode 100644 index 000000000..0a6fda172 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/attributes.h @@ -0,0 +1,162 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * Macro definitions for various function/variable attributes + */ + +#ifndef AVUTIL_ATTRIBUTES_H +#define AVUTIL_ATTRIBUTES_H + +#ifdef __GNUC__ +# define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y) +#else +# define AV_GCC_VERSION_AT_LEAST(x,y) 0 +#endif + +#ifndef av_always_inline +#if AV_GCC_VERSION_AT_LEAST(3,1) +# define av_always_inline __attribute__((always_inline)) inline +#else +# define av_always_inline inline +#endif +#endif + +#ifndef av_noreturn +#if AV_GCC_VERSION_AT_LEAST(2,5) +# define av_noreturn __attribute__((noreturn)) +#else +# define av_noreturn +#endif +#endif + +#ifndef av_noinline +#if AV_GCC_VERSION_AT_LEAST(3,1) +# define av_noinline __attribute__((noinline)) +#else +# define av_noinline +#endif +#endif + +#ifndef av_pure +#if AV_GCC_VERSION_AT_LEAST(3,1) +# define av_pure __attribute__((pure)) +#else +# define av_pure +#endif +#endif + +#ifndef av_const +#if AV_GCC_VERSION_AT_LEAST(2,6) +# define av_const __attribute__((const)) +#else +# define av_const +#endif +#endif + +#ifndef av_cold +#if AV_GCC_VERSION_AT_LEAST(4,3) +# define av_cold __attribute__((cold)) +#else +# define av_cold +#endif +#endif + +#ifndef av_flatten +#if AV_GCC_VERSION_AT_LEAST(4,1) +# define av_flatten __attribute__((flatten)) +#else +# define av_flatten +#endif +#endif + +#ifndef attribute_deprecated +#if AV_GCC_VERSION_AT_LEAST(3,1) +# define attribute_deprecated __attribute__((deprecated)) +#else +# define attribute_deprecated +#endif +#endif + +/** + * Disable warnings about deprecated features + * This is useful for sections of code kept for backward compatibility and + * scheduled for removal. + */ +#ifndef AV_NOWARN_DEPRECATED +#if AV_GCC_VERSION_AT_LEAST(4,6) +# define AV_NOWARN_DEPRECATED(code) \ + _Pragma("GCC diagnostic push") \ + _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") \ + code \ + _Pragma("GCC diagnostic pop") +#else +# define AV_NOWARN_DEPRECATED(code) code +#endif +#endif + + +#ifndef av_unused +#if defined(__GNUC__) +# define av_unused __attribute__((unused)) +#else +# define av_unused +#endif +#endif + +/** + * Mark a variable as used and prevent the compiler from optimizing it + * away. This is useful for variables accessed only from inline + * assembler without the compiler being aware. + */ +#ifndef av_used +#if AV_GCC_VERSION_AT_LEAST(3,1) +# define av_used __attribute__((used)) +#else +# define av_used +#endif +#endif + +#ifndef av_alias +#if AV_GCC_VERSION_AT_LEAST(3,3) +# define av_alias __attribute__((may_alias)) +#else +# define av_alias +#endif +#endif + +#ifndef av_uninit +#if defined(__GNUC__) && !defined(__INTEL_COMPILER) +# define av_uninit(x) x=x +#else +# define av_uninit(x) x +#endif +#endif + +#ifdef __GNUC__ +# define av_builtin_constant_p __builtin_constant_p +# define av_printf_format(fmtpos, attrpos) __attribute__((__format__(__printf__, fmtpos, attrpos))) +#else +# define av_builtin_constant_p(x) 0 +# define av_printf_format(fmtpos, attrpos) +#endif + +#endif /* AVUTIL_ATTRIBUTES_H */ diff --git a/ffmpeg 0.8/include/libavutil/audioconvert.h b/ffmpeg 0.8/include/libavutil/audioconvert.h new file mode 100644 index 000000000..4e0e98c9b --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/audioconvert.h @@ -0,0 +1,112 @@ +/* + * Copyright (c) 2006 Michael Niedermayer + * Copyright (c) 2008 Peter Ross + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_AUDIOCONVERT_H +#define AVUTIL_AUDIOCONVERT_H + +#include + +/** + * @file + * audio conversion routines + */ + +/* Audio channel masks */ +#define AV_CH_FRONT_LEFT 0x00000001 +#define AV_CH_FRONT_RIGHT 0x00000002 +#define AV_CH_FRONT_CENTER 0x00000004 +#define AV_CH_LOW_FREQUENCY 0x00000008 +#define AV_CH_BACK_LEFT 0x00000010 +#define AV_CH_BACK_RIGHT 0x00000020 +#define AV_CH_FRONT_LEFT_OF_CENTER 0x00000040 +#define AV_CH_FRONT_RIGHT_OF_CENTER 0x00000080 +#define AV_CH_BACK_CENTER 0x00000100 +#define AV_CH_SIDE_LEFT 0x00000200 +#define AV_CH_SIDE_RIGHT 0x00000400 +#define AV_CH_TOP_CENTER 0x00000800 +#define AV_CH_TOP_FRONT_LEFT 0x00001000 +#define AV_CH_TOP_FRONT_CENTER 0x00002000 +#define AV_CH_TOP_FRONT_RIGHT 0x00004000 +#define AV_CH_TOP_BACK_LEFT 0x00008000 +#define AV_CH_TOP_BACK_CENTER 0x00010000 +#define AV_CH_TOP_BACK_RIGHT 0x00020000 +#define AV_CH_STEREO_LEFT 0x20000000 ///< Stereo downmix. +#define AV_CH_STEREO_RIGHT 0x40000000 ///< See AV_CH_STEREO_LEFT. + +/** Channel mask value used for AVCodecContext.request_channel_layout + to indicate that the user requests the channel order of the decoder output + to be the native codec channel order. */ +#define AV_CH_LAYOUT_NATIVE 0x8000000000000000LL + +/* Audio channel convenience macros */ +#define AV_CH_LAYOUT_MONO (AV_CH_FRONT_CENTER) +#define AV_CH_LAYOUT_STEREO (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT) +#define AV_CH_LAYOUT_2_1 (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER) +#define AV_CH_LAYOUT_SURROUND (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER) +#define AV_CH_LAYOUT_4POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER) +#define AV_CH_LAYOUT_2_2 (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT) +#define AV_CH_LAYOUT_QUAD (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) +#define AV_CH_LAYOUT_5POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT) +#define AV_CH_LAYOUT_5POINT1 (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY) +#define AV_CH_LAYOUT_5POINT0_BACK (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) +#define AV_CH_LAYOUT_5POINT1_BACK (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY) +#define AV_CH_LAYOUT_7POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) +#define AV_CH_LAYOUT_7POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) +#define AV_CH_LAYOUT_7POINT1_WIDE (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) +#define AV_CH_LAYOUT_STEREO_DOWNMIX (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT) + +/** + * Return a channel layout id that matches name, 0 if no match. + * name can be one or several of the following notations, + * separated by '+' or '|': + * - the name of an usual channel layout (mono, stereo, 4.0, quad, 5.0, + * 5.0(side), 5.1, 5.1(side), 7.1, 7.1(wide), downmix); + * - the name of a single channel (FL, FR, FC, LFE, BL, BR, FLC, FRC, BC, + * SL, SR, TC, TFL, TFC, TFR, TBL, TBC, TBR, DL, DR); + * - a number of channels, in decimal, optionnally followed by 'c', yielding + * the default channel layout for that number of channels (@see + * av_get_default_channel_layout); + * - a channel layout mask, in hexadecimal starting with "0x" (see the + * AV_CH_* macros). + + Example: "stereo+FC" = "2+FC" = "2c+1c" = "0x7" + */ +int64_t av_get_channel_layout(const char *name); + +/** + * Return a description of a channel layout. + * If nb_channels is <= 0, it is guessed from the channel_layout. + * + * @param buf put here the string containing the channel layout + * @param buf_size size in bytes of the buffer + */ +void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, int64_t channel_layout); + +/** + * Return the number of channels in the channel layout. + */ +int av_get_channel_layout_nb_channels(int64_t channel_layout); + +/** + * Return default channel layout for a given number of channels. + */ +int64_t av_get_default_channel_layout(int nb_channels); + +#endif /* AVUTIL_AUDIOCONVERT_H */ diff --git a/ffmpeg 0.8/include/libavutil/avassert.h b/ffmpeg 0.8/include/libavutil/avassert.h new file mode 100644 index 000000000..e100d0bfd --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/avassert.h @@ -0,0 +1,66 @@ +/* + * copyright (c) 2010 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * simple assert() macros that are a bit more flexible than ISO C assert(). + * @author Michael Niedermayer + */ + +#ifndef AVUTIL_AVASSERT_H +#define AVUTIL_AVASSERT_H + +#include +#include "avutil.h" +#include "log.h" + +/** + * assert() equivalent, that is always enabled. + */ +#define av_assert0(cond) do { \ + if (!(cond)) { \ + av_log(NULL, AV_LOG_FATAL, "Assertion %s failed at %s:%d\n", \ + AV_STRINGIFY(cond), __FILE__, __LINE__); \ + abort(); \ + } \ +} while (0) + + +/** + * assert() equivalent, that does not lie in speed critical code. + * These asserts() thus can be enabled without fearing speedloss. + */ +#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0 +#define av_assert1(cond) av_assert0(cond) +#else +#define av_assert1(cond) ((void)0) +#endif + + +/** + * assert() equivalent, that does lie in speed critical code. + */ +#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1 +#define av_assert2(cond) av_assert0(cond) +#else +#define av_assert2(cond) ((void)0) +#endif + +#endif /* AVUTIL_AVASSERT_H */ diff --git a/ffmpeg 0.8/include/libavutil/avconfig.h b/ffmpeg 0.8/include/libavutil/avconfig.h new file mode 100644 index 000000000..f10aa6186 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/avconfig.h @@ -0,0 +1,6 @@ +/* Generated by ffconf */ +#ifndef AVUTIL_AVCONFIG_H +#define AVUTIL_AVCONFIG_H +#define AV_HAVE_BIGENDIAN 0 +#define AV_HAVE_FAST_UNALIGNED 1 +#endif /* AVUTIL_AVCONFIG_H */ diff --git a/ffmpeg 0.8/include/libavutil/avstring.h b/ffmpeg 0.8/include/libavutil/avstring.h new file mode 100644 index 000000000..4ea64e46a --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/avstring.h @@ -0,0 +1,200 @@ +/* + * Copyright (c) 2007 Mans Rullgard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_AVSTRING_H +#define AVUTIL_AVSTRING_H + +#include +#include "attributes.h" + +/** + * Return non-zero if pfx is a prefix of str. If it is, *ptr is set to + * the address of the first character in str after the prefix. + * + * @param str input string + * @param pfx prefix to test + * @param ptr updated if the prefix is matched inside str + * @return non-zero if the prefix matches, zero otherwise + */ +int av_strstart(const char *str, const char *pfx, const char **ptr); + +/** + * Return non-zero if pfx is a prefix of str independent of case. If + * it is, *ptr is set to the address of the first character in str + * after the prefix. + * + * @param str input string + * @param pfx prefix to test + * @param ptr updated if the prefix is matched inside str + * @return non-zero if the prefix matches, zero otherwise + */ +int av_stristart(const char *str, const char *pfx, const char **ptr); + +/** + * Locate the first case-independent occurrence in the string haystack + * of the string needle. A zero-length string needle is considered to + * match at the start of haystack. + * + * This function is a case-insensitive version of the standard strstr(). + * + * @param haystack string to search in + * @param needle string to search for + * @return pointer to the located match within haystack + * or a null pointer if no match + */ +char *av_stristr(const char *haystack, const char *needle); + +/** + * Copy the string src to dst, but no more than size - 1 bytes, and + * null-terminate dst. + * + * This function is the same as BSD strlcpy(). + * + * @param dst destination buffer + * @param src source string + * @param size size of destination buffer + * @return the length of src + * + * WARNING: since the return value is the length of src, src absolutely + * _must_ be a properly 0-terminated string, otherwise this will read beyond + * the end of the buffer and possibly crash. + */ +size_t av_strlcpy(char *dst, const char *src, size_t size); + +/** + * Append the string src to the string dst, but to a total length of + * no more than size - 1 bytes, and null-terminate dst. + * + * This function is similar to BSD strlcat(), but differs when + * size <= strlen(dst). + * + * @param dst destination buffer + * @param src source string + * @param size size of destination buffer + * @return the total length of src and dst + * + * WARNING: since the return value use the length of src and dst, these absolutely + * _must_ be a properly 0-terminated strings, otherwise this will read beyond + * the end of the buffer and possibly crash. + */ +size_t av_strlcat(char *dst, const char *src, size_t size); + +/** + * Append output to a string, according to a format. Never write out of + * the destination buffer, and always put a terminating 0 within + * the buffer. + * @param dst destination buffer (string to which the output is + * appended) + * @param size total size of the destination buffer + * @param fmt printf-compatible format string, specifying how the + * following parameters are used + * @return the length of the string that would have been generated + * if enough space had been available + */ +size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...) av_printf_format(3, 4); + +/** + * Print arguments following specified format into a large enough auto + * allocated buffer. It is similar to GNU asprintf(). + * @param fmt printf-compatible format string, specifying how the + * following parameters are used. + * @return the allocated string + * @note You have to free the string yourself with av_free(). + */ +char *av_asprintf(const char *fmt, ...) av_printf_format(1, 2); + +/** + * Convert a number to a av_malloced string. + */ +char *av_d2str(double d); + +/** + * Unescape the given string until a non escaped terminating char, + * and return the token corresponding to the unescaped string. + * + * The normal \ and ' escaping is supported. Leading and trailing + * whitespaces are removed, unless they are escaped with '\' or are + * enclosed between ''. + * + * @param buf the buffer to parse, buf will be updated to point to the + * terminating char + * @param term a 0-terminated list of terminating chars + * @return the malloced unescaped string, which must be av_freed by + * the user, NULL in case of allocation failure + */ +char *av_get_token(const char **buf, const char *term); + +/** + * Split the string into several tokens which can be accessed by + * successive calls to av_strtok(). + * + * A token is defined as a sequence of characters not belonging to the + * set specified in delim. + * + * On the first call to av_strtok(), s should point to the string to + * parse, and the value of saveptr is ignored. In subsequent calls, s + * should be NULL, and saveptr should be unchanged since the previous + * call. + * + * This function is similar to strtok_r() defined in POSIX.1. + * + * @param s the string to parse, may be NULL + * @param delim 0-terminated list of token delimiters, must be non-NULL + * @param saveptr user-provided pointer which points to stored + * information necessary for av_strtok() to continue scanning the same + * string. saveptr is updated to point to the next character after the + * first delimiter found, or to NULL if the string was terminated + * @return the found token, or NULL when no token is found + */ +char *av_strtok(char *s, const char *delim, char **saveptr); + +/** + * Locale independent conversion of ASCII characters to upper case. + */ +static inline int av_toupper(int c) +{ + if (c >= 'a' && c <= 'z') + c ^= 0x20; + return c; +} + +/** + * Locale independent conversion of ASCII characters to lower case. + */ +static inline int av_tolower(int c) +{ + if (c >= 'A' && c <= 'Z') + c ^= 0x20; + return c; +} + +/** + * Locale independent case-insensitive compare. + * Note: This means only ASCII-range characters are case-insensitive + */ +int av_strcasecmp(const char *a, const char *b); + +/** + * Locale independent case-insensitive compare. + * Note: This means only ASCII-range characters are case-insensitive + */ +int av_strncasecmp(const char *a, const char *b, size_t n); + +#endif /* AVUTIL_AVSTRING_H */ diff --git a/ffmpeg 0.8/include/libavutil/avutil.h b/ffmpeg 0.8/include/libavutil/avutil.h new file mode 100644 index 000000000..0fa46b823 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/avutil.h @@ -0,0 +1,154 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_AVUTIL_H +#define AVUTIL_AVUTIL_H + +/** + * @file + * external API header + */ + + +#define AV_STRINGIFY(s) AV_TOSTRING(s) +#define AV_TOSTRING(s) #s + +#define AV_GLUE(a, b) a ## b +#define AV_JOIN(a, b) AV_GLUE(a, b) + +#define AV_PRAGMA(s) _Pragma(#s) + +#define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c) +#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c +#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c) + +#define LIBAVUTIL_VERSION_MAJOR 51 +#define LIBAVUTIL_VERSION_MINOR 26 +#define LIBAVUTIL_VERSION_MICRO 0 + +#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ + LIBAVUTIL_VERSION_MINOR, \ + LIBAVUTIL_VERSION_MICRO) +#define LIBAVUTIL_VERSION AV_VERSION(LIBAVUTIL_VERSION_MAJOR, \ + LIBAVUTIL_VERSION_MINOR, \ + LIBAVUTIL_VERSION_MICRO) +#define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT + +#define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION) + +/** + * Those FF_API_* defines are not part of public API. + * They may change, break or disappear at any time. + */ +#ifndef FF_API_OLD_EVAL_NAMES +#define FF_API_OLD_EVAL_NAMES (LIBAVUTIL_VERSION_MAJOR < 52) +#endif +#ifndef FF_API_GET_BITS_PER_SAMPLE_FMT +#define FF_API_GET_BITS_PER_SAMPLE_FMT (LIBAVUTIL_VERSION_MAJOR < 52) +#endif +#ifndef FF_API_FIND_OPT +#define FF_API_FIND_OPT (LIBAVUTIL_VERSION_MAJOR < 52) +#endif +#ifndef FF_API_AV_FIFO_PEEK +#define FF_API_AV_FIFO_PEEK (LIBAVUTIL_VERSION_MAJOR < 52) +#endif +#ifndef FF_API_OLD_AVOPTIONS +#define FF_API_OLD_AVOPTIONS (LIBAVUTIL_VERSION_MAJOR < 52) +#endif + +/** + * Return the LIBAVUTIL_VERSION_INT constant. + */ +unsigned avutil_version(void); + +/** + * Return the libavutil build-time configuration. + */ +const char *avutil_configuration(void); + +/** + * Return the libavutil license. + */ +const char *avutil_license(void); + +enum AVMediaType { + AVMEDIA_TYPE_UNKNOWN = -1, + AVMEDIA_TYPE_VIDEO, + AVMEDIA_TYPE_AUDIO, + AVMEDIA_TYPE_DATA, + AVMEDIA_TYPE_SUBTITLE, + AVMEDIA_TYPE_ATTACHMENT, + AVMEDIA_TYPE_NB +}; + +/** + * Return a string describing the media_type enum, NULL if media_type + * is unknown. + */ +const char *av_get_media_type_string(enum AVMediaType media_type); + +#define FF_LAMBDA_SHIFT 7 +#define FF_LAMBDA_SCALE (1< + +/** + * Decode a base64-encoded string. + * + * @param out buffer for decoded data + * @param in null-terminated input string + * @param out_size size in bytes of the out buffer, must be at + * least 3/4 of the length of in + * @return number of bytes written, or a negative value in case of + * invalid input + */ +int av_base64_decode(uint8_t *out, const char *in, int out_size); + +/** + * Encode data to base64 and null-terminate. + * + * @param out buffer for encoded data + * @param out_size size in bytes of the output buffer, must be at + * least AV_BASE64_SIZE(in_size) + * @param in_size size in bytes of the 'in' buffer + * @return 'out' or NULL in case of error + */ +char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size); + +/** + * Calculate the output size needed to base64-encode x bytes. + */ +#define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1) + +#endif /* AVUTIL_BASE64_H */ diff --git a/ffmpeg 0.8/include/libavutil/bswap.h b/ffmpeg 0.8/include/libavutil/bswap.h new file mode 100644 index 000000000..303bcf353 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/bswap.h @@ -0,0 +1,124 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * byte swapping routines + */ + +#ifndef AVUTIL_BSWAP_H +#define AVUTIL_BSWAP_H + +#include +#include "libavutil/avconfig.h" +#include "attributes.h" + +#ifdef HAVE_AV_CONFIG_H + +#include "config.h" + +#if ARCH_ARM +# include "arm/bswap.h" +#elif ARCH_AVR32 +# include "avr32/bswap.h" +#elif ARCH_BFIN +# include "bfin/bswap.h" +#elif ARCH_SH4 +# include "sh4/bswap.h" +#elif ARCH_X86 +# include "x86/bswap.h" +#endif + +#endif /* HAVE_AV_CONFIG_H */ + +#define AV_BSWAP16C(x) (((x) << 8 & 0xff00) | ((x) >> 8 & 0x00ff)) +#define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16)) +#define AV_BSWAP64C(x) (AV_BSWAP32C(x) << 32 | AV_BSWAP32C((x) >> 32)) + +#define AV_BSWAPC(s, x) AV_BSWAP##s##C(x) + +#ifndef av_bswap16 +static av_always_inline av_const uint16_t av_bswap16(uint16_t x) +{ + x= (x>>8) | (x<<8); + return x; +} +#endif + +#ifndef av_bswap32 +static av_always_inline av_const uint32_t av_bswap32(uint32_t x) +{ + x= ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF); + x= (x>>16) | (x<<16); + return x; +} +#endif + +#ifndef av_bswap64 +static inline uint64_t av_const av_bswap64(uint64_t x) +{ +#if 0 + x= ((x<< 8)&0xFF00FF00FF00FF00ULL) | ((x>> 8)&0x00FF00FF00FF00FFULL); + x= ((x<<16)&0xFFFF0000FFFF0000ULL) | ((x>>16)&0x0000FFFF0000FFFFULL); + return (x>>32) | (x<<32); +#else + union { + uint64_t ll; + uint32_t l[2]; + } w, r; + w.ll = x; + r.l[0] = av_bswap32 (w.l[1]); + r.l[1] = av_bswap32 (w.l[0]); + return r.ll; +#endif +} +#endif + +// be2ne ... big-endian to native-endian +// le2ne ... little-endian to native-endian + +#if AV_HAVE_BIGENDIAN +#define av_be2ne16(x) (x) +#define av_be2ne32(x) (x) +#define av_be2ne64(x) (x) +#define av_le2ne16(x) av_bswap16(x) +#define av_le2ne32(x) av_bswap32(x) +#define av_le2ne64(x) av_bswap64(x) +#define AV_BE2NEC(s, x) (x) +#define AV_LE2NEC(s, x) AV_BSWAPC(s, x) +#else +#define av_be2ne16(x) av_bswap16(x) +#define av_be2ne32(x) av_bswap32(x) +#define av_be2ne64(x) av_bswap64(x) +#define av_le2ne16(x) (x) +#define av_le2ne32(x) (x) +#define av_le2ne64(x) (x) +#define AV_BE2NEC(s, x) AV_BSWAPC(s, x) +#define AV_LE2NEC(s, x) (x) +#endif + +#define AV_BE2NE16C(x) AV_BE2NEC(16, x) +#define AV_BE2NE32C(x) AV_BE2NEC(32, x) +#define AV_BE2NE64C(x) AV_BE2NEC(64, x) +#define AV_LE2NE16C(x) AV_LE2NEC(16, x) +#define AV_LE2NE32C(x) AV_LE2NEC(32, x) +#define AV_LE2NE64C(x) AV_LE2NEC(64, x) + +#endif /* AVUTIL_BSWAP_H */ diff --git a/ffmpeg 0.8/include/libavutil/common.h b/ffmpeg 0.8/include/libavutil/common.h new file mode 100644 index 000000000..d60e8638a --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/common.h @@ -0,0 +1,387 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * common internal and external API header + */ + +#ifndef AVUTIL_COMMON_H +#define AVUTIL_COMMON_H + +#include +#include +#include +#include +#include +#include +#include +#include +#include "attributes.h" +#include "libavutil/avconfig.h" + +#if AV_HAVE_BIGENDIAN +# define AV_NE(be, le) (be) +#else +# define AV_NE(be, le) (le) +#endif + +//rounded division & shift +#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b)) +/* assume b>0 */ +#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b)) +#define FFUDIV(a,b) (((a)>0 ?(a):(a)-(b)+1) / (b)) +#define FFUMOD(a,b) ((a)-(b)*FFUDIV(a,b)) +#define FFABS(a) ((a) >= 0 ? (a) : (-(a))) +#define FFSIGN(a) ((a) > 0 ? 1 : -1) + +#define FFMAX(a,b) ((a) > (b) ? (a) : (b)) +#define FFMAX3(a,b,c) FFMAX(FFMAX(a,b),c) +#define FFMIN(a,b) ((a) > (b) ? (b) : (a)) +#define FFMIN3(a,b,c) FFMIN(FFMIN(a,b),c) + +#define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0) +#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0])) +#define FFALIGN(x, a) (((x)+(a)-1)&~((a)-1)) + +/* misc math functions */ +extern const uint8_t ff_log2_tab[256]; + +extern const uint8_t av_reverse[256]; + +static av_always_inline av_const int av_log2_c(unsigned int v) +{ + int n = 0; + if (v & 0xffff0000) { + v >>= 16; + n += 16; + } + if (v & 0xff00) { + v >>= 8; + n += 8; + } + n += ff_log2_tab[v]; + + return n; +} + +static av_always_inline av_const int av_log2_16bit_c(unsigned int v) +{ + int n = 0; + if (v & 0xff00) { + v >>= 8; + n += 8; + } + n += ff_log2_tab[v]; + + return n; +} + +#ifdef HAVE_AV_CONFIG_H +# include "config.h" +# include "intmath.h" +#endif + +/* Pull in unguarded fallback defines at the end of this file. */ +#include "common.h" + +/** + * Clip a signed integer value into the amin-amax range. + * @param a value to clip + * @param amin minimum value of the clip range + * @param amax maximum value of the clip range + * @return clipped value + */ +static av_always_inline av_const int av_clip_c(int a, int amin, int amax) +{ + if (a < amin) return amin; + else if (a > amax) return amax; + else return a; +} + +/** + * Clip a signed integer value into the 0-255 range. + * @param a value to clip + * @return clipped value + */ +static av_always_inline av_const uint8_t av_clip_uint8_c(int a) +{ + if (a&(~0xFF)) return (-a)>>31; + else return a; +} + +/** + * Clip a signed integer value into the -128,127 range. + * @param a value to clip + * @return clipped value + */ +static av_always_inline av_const int8_t av_clip_int8_c(int a) +{ + if ((a+0x80) & ~0xFF) return (a>>31) ^ 0x7F; + else return a; +} + +/** + * Clip a signed integer value into the 0-65535 range. + * @param a value to clip + * @return clipped value + */ +static av_always_inline av_const uint16_t av_clip_uint16_c(int a) +{ + if (a&(~0xFFFF)) return (-a)>>31; + else return a; +} + +/** + * Clip a signed integer value into the -32768,32767 range. + * @param a value to clip + * @return clipped value + */ +static av_always_inline av_const int16_t av_clip_int16_c(int a) +{ + if ((a+0x8000) & ~0xFFFF) return (a>>31) ^ 0x7FFF; + else return a; +} + +/** + * Clip a signed 64-bit integer value into the -2147483648,2147483647 range. + * @param a value to clip + * @return clipped value + */ +static av_always_inline av_const int32_t av_clipl_int32_c(int64_t a) +{ + if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (a>>63) ^ 0x7FFFFFFF; + else return a; +} + +/** + * Clip a signed integer to an unsigned power of two range. + * @param a value to clip + * @param p bit position to clip at + * @return clipped value + */ +static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p) +{ + if (a & ~((1<> 31 & ((1< amax) return amax; + else return a; +} + +/** Compute ceil(log2(x)). + * @param x value used to compute ceil(log2(x)) + * @return computed ceiling of log2(x) + */ +static av_always_inline av_const int av_ceil_log2_c(int x) +{ + return av_log2((x - 1) << 1); +} + +/** + * Count number of bits set to one in x + * @param x value to count bits of + * @return the number of bits set to one in x + */ +static av_always_inline av_const int av_popcount_c(uint32_t x) +{ + x -= (x >> 1) & 0x55555555; + x = (x & 0x33333333) + ((x >> 2) & 0x33333333); + x = (x + (x >> 4)) & 0x0F0F0F0F; + x += x >> 8; + return (x + (x >> 16)) & 0x3F; +} + +#define MKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((d) << 24)) +#define MKBETAG(a,b,c,d) ((d) | ((c) << 8) | ((b) << 16) | ((a) << 24)) + +/** + * Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form. + * + * @param val Output value, must be an lvalue of type uint32_t. + * @param GET_BYTE Expression reading one byte from the input. + * Evaluated up to 7 times (4 for the currently + * assigned Unicode range). With a memory buffer + * input, this could be *ptr++. + * @param ERROR Expression to be evaluated on invalid input, + * typically a goto statement. + */ +#define GET_UTF8(val, GET_BYTE, ERROR)\ + val= GET_BYTE;\ + {\ + int ones= 7 - av_log2(val ^ 255);\ + if(ones==1)\ + ERROR\ + val&= 127>>ones;\ + while(--ones > 0){\ + int tmp= GET_BYTE - 128;\ + if(tmp>>6)\ + ERROR\ + val= (val<<6) + tmp;\ + }\ + } + +/** + * Convert a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form. + * + * @param val Output value, must be an lvalue of type uint32_t. + * @param GET_16BIT Expression returning two bytes of UTF-16 data converted + * to native byte order. Evaluated one or two times. + * @param ERROR Expression to be evaluated on invalid input, + * typically a goto statement. + */ +#define GET_UTF16(val, GET_16BIT, ERROR)\ + val = GET_16BIT;\ + {\ + unsigned int hi = val - 0xD800;\ + if (hi < 0x800) {\ + val = GET_16BIT - 0xDC00;\ + if (val > 0x3FFU || hi > 0x3FFU)\ + ERROR\ + val += (hi<<10) + 0x10000;\ + }\ + }\ + +/** + * @def PUT_UTF8(val, tmp, PUT_BYTE) + * Convert a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long). + * @param val is an input-only argument and should be of type uint32_t. It holds + * a UCS-4 encoded Unicode character that is to be converted to UTF-8. If + * val is given as a function it is executed only once. + * @param tmp is a temporary variable and should be of type uint8_t. It + * represents an intermediate value during conversion that is to be + * output by PUT_BYTE. + * @param PUT_BYTE writes the converted UTF-8 bytes to any proper destination. + * It could be a function or a statement, and uses tmp as the input byte. + * For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be + * executed up to 4 times for values in the valid UTF-8 range and up to + * 7 times in the general case, depending on the length of the converted + * Unicode character. + */ +#define PUT_UTF8(val, tmp, PUT_BYTE)\ + {\ + int bytes, shift;\ + uint32_t in = val;\ + if (in < 0x80) {\ + tmp = in;\ + PUT_BYTE\ + } else {\ + bytes = (av_log2(in) + 4) / 5;\ + shift = (bytes - 1) * 6;\ + tmp = (256 - (256 >> bytes)) | (in >> shift);\ + PUT_BYTE\ + while (shift >= 6) {\ + shift -= 6;\ + tmp = 0x80 | ((in >> shift) & 0x3f);\ + PUT_BYTE\ + }\ + }\ + } + +/** + * @def PUT_UTF16(val, tmp, PUT_16BIT) + * Convert a 32-bit Unicode character to its UTF-16 encoded form (2 or 4 bytes). + * @param val is an input-only argument and should be of type uint32_t. It holds + * a UCS-4 encoded Unicode character that is to be converted to UTF-16. If + * val is given as a function it is executed only once. + * @param tmp is a temporary variable and should be of type uint16_t. It + * represents an intermediate value during conversion that is to be + * output by PUT_16BIT. + * @param PUT_16BIT writes the converted UTF-16 data to any proper destination + * in desired endianness. It could be a function or a statement, and uses tmp + * as the input byte. For example, PUT_BYTE could be "*output++ = tmp;" + * PUT_BYTE will be executed 1 or 2 times depending on input character. + */ +#define PUT_UTF16(val, tmp, PUT_16BIT)\ + {\ + uint32_t in = val;\ + if (in < 0x10000) {\ + tmp = in;\ + PUT_16BIT\ + } else {\ + tmp = 0xD800 | ((in - 0x10000) >> 10);\ + PUT_16BIT\ + tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\ + PUT_16BIT\ + }\ + }\ + + + +#include "mem.h" + +#ifdef HAVE_AV_CONFIG_H +# include "internal.h" +#endif /* HAVE_AV_CONFIG_H */ + +#endif /* AVUTIL_COMMON_H */ + +/* + * The following definitions are outside the multiple inclusion guard + * to ensure they are immediately available in intmath.h. + */ + +#ifndef av_log2 +# define av_log2 av_log2_c +#endif +#ifndef av_log2_16bit +# define av_log2_16bit av_log2_16bit_c +#endif +#ifndef av_ceil_log2 +# define av_ceil_log2 av_ceil_log2_c +#endif +#ifndef av_clip +# define av_clip av_clip_c +#endif +#ifndef av_clip_uint8 +# define av_clip_uint8 av_clip_uint8_c +#endif +#ifndef av_clip_int8 +# define av_clip_int8 av_clip_int8_c +#endif +#ifndef av_clip_uint16 +# define av_clip_uint16 av_clip_uint16_c +#endif +#ifndef av_clip_int16 +# define av_clip_int16 av_clip_int16_c +#endif +#ifndef av_clipl_int32 +# define av_clipl_int32 av_clipl_int32_c +#endif +#ifndef av_clip_uintp2 +# define av_clip_uintp2 av_clip_uintp2_c +#endif +#ifndef av_clipf +# define av_clipf av_clipf_c +#endif +#ifndef av_popcount +# define av_popcount av_popcount_c +#endif diff --git a/ffmpeg 0.8/include/libavutil/cpu.h b/ffmpeg 0.8/include/libavutil/cpu.h new file mode 100644 index 000000000..5f7eed2b6 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/cpu.h @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2000, 2001, 2002 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_CPU_H +#define AVUTIL_CPU_H + +#define AV_CPU_FLAG_FORCE 0x80000000 /* force usage of selected flags (OR) */ + + /* lower 16 bits - CPU features */ +#define AV_CPU_FLAG_MMX 0x0001 ///< standard MMX +#define AV_CPU_FLAG_MMX2 0x0002 ///< SSE integer functions or AMD MMX ext +#define AV_CPU_FLAG_3DNOW 0x0004 ///< AMD 3DNOW +#define AV_CPU_FLAG_SSE 0x0008 ///< SSE functions +#define AV_CPU_FLAG_SSE2 0x0010 ///< PIV SSE2 functions +#define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster +#define AV_CPU_FLAG_3DNOWEXT 0x0020 ///< AMD 3DNowExt +#define AV_CPU_FLAG_SSE3 0x0040 ///< Prescott SSE3 functions +#define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster +#define AV_CPU_FLAG_SSSE3 0x0080 ///< Conroe SSSE3 functions +#define AV_CPU_FLAG_ATOM 0x10000000 ///< Atom processor, some SSSE3 instructions are slower +#define AV_CPU_FLAG_SSE4 0x0100 ///< Penryn SSE4.1 functions +#define AV_CPU_FLAG_SSE42 0x0200 ///< Nehalem SSE4.2 functions +#define AV_CPU_FLAG_AVX 0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used +#define AV_CPU_FLAG_XOP 0x0400 ///< Bulldozer XOP functions +#define AV_CPU_FLAG_FMA4 0x0800 ///< Bulldozer FMA4 functions +#define AV_CPU_FLAG_IWMMXT 0x0100 ///< XScale IWMMXT +#define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard + +/** + * Return the flags which specify extensions supported by the CPU. + */ +int av_get_cpu_flags(void); + + +/** + * Disables cpu detection and forces the specified flags. + */ +void av_force_cpu_flags(int flags); + + +/* The following CPU-specific functions shall not be called directly. */ +int ff_get_cpu_flags_arm(void); +int ff_get_cpu_flags_ppc(void); +int ff_get_cpu_flags_x86(void); + +#endif /* AVUTIL_CPU_H */ diff --git a/ffmpeg 0.8/include/libavutil/crc.h b/ffmpeg 0.8/include/libavutil/crc.h new file mode 100644 index 000000000..6c0baab5a --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/crc.h @@ -0,0 +1,44 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_CRC_H +#define AVUTIL_CRC_H + +#include +#include +#include "attributes.h" + +typedef uint32_t AVCRC; + +typedef enum { + AV_CRC_8_ATM, + AV_CRC_16_ANSI, + AV_CRC_16_CCITT, + AV_CRC_32_IEEE, + AV_CRC_32_IEEE_LE, /*< reversed bitorder version of AV_CRC_32_IEEE */ + AV_CRC_MAX, /*< Not part of public API! Do not use outside libavutil. */ +}AVCRCId; + +int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size); +const AVCRC *av_crc_get_table(AVCRCId crc_id); +uint32_t av_crc(const AVCRC *ctx, uint32_t start_crc, const uint8_t *buffer, size_t length) av_pure; + +#endif /* AVUTIL_CRC_H */ + diff --git a/ffmpeg 0.8/include/libavutil/dict.h b/ffmpeg 0.8/include/libavutil/dict.h new file mode 100644 index 000000000..84f58ec47 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/dict.h @@ -0,0 +1,120 @@ +/* + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * Public dictionary API. + * @deprecated + * AVDictionary is provided for compatibility with libav. It is both in + * implementation as well as API inefficient. It does not scale and is + * extremely slow with large dictionaries. + * It is recommended that new code uses our tree container from tree.c/h + * where applicable, which uses AVL trees to achieve O(log n) performance. + */ + +#ifndef AVUTIL_DICT_H +#define AVUTIL_DICT_H + +/** + * @defgroup dict_api Public Dictionary API + * @{ + * Dictionaries are used for storing key:value pairs. To create + * an AVDictionary, simply pass an address of a NULL pointer to + * av_dict_set(). NULL can be used as an empty dictionary wherever + * a pointer to an AVDictionary is required. + * Use av_dict_get() to retrieve an entry or iterate over all + * entries and finally av_dict_free() to free the dictionary + * and all its contents. + * + * @code + * AVDictionary *d = NULL; // "create" an empty dictionary + * av_dict_set(&d, "foo", "bar", 0); // add an entry + * + * char *k = av_strdup("key"); // if your strings are already allocated, + * char *v = av_strdup("value"); // you can avoid copying them like this + * av_dict_set(&d, k, v, AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL); + * + * AVDictionaryEntry *t = NULL; + * while (t = av_dict_get(d, "", t, AV_DICT_IGNORE_SUFFIX)) { + * <....> // iterate over all entries in d + * } + * + * av_dict_free(&d); + * @endcode + * + * @} + */ + +#define AV_DICT_MATCH_CASE 1 +#define AV_DICT_IGNORE_SUFFIX 2 +#define AV_DICT_DONT_STRDUP_KEY 4 /**< Take ownership of a key that's been + allocated with av_malloc() and children. */ +#define AV_DICT_DONT_STRDUP_VAL 8 /**< Take ownership of a value that's been + allocated with av_malloc() and chilren. */ +#define AV_DICT_DONT_OVERWRITE 16 ///< Don't overwrite existing entries. +#define AV_DICT_APPEND 32 /**< If the entry already exists, append to it. Note that no + delimiter is added, the strings are simply concatenated. */ + +typedef struct { + char *key; + char *value; +} AVDictionaryEntry; + +typedef struct AVDictionary AVDictionary; + +/** + * Get a dictionary entry with matching key. + * + * @param prev Set to the previous matching element to find the next. + * If set to NULL the first matching element is returned. + * @param flags Allows case as well as suffix-insensitive comparisons. + * @return Found entry or NULL, changing key or value leads to undefined behavior. + */ +AVDictionaryEntry * +av_dict_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags); + +/** + * Set the given entry in *pm, overwriting an existing entry. + * + * @param pm pointer to a pointer to a dictionary struct. If *pm is NULL + * a dictionary struct is allocated and put in *pm. + * @param key entry key to add to *pm (will be av_strduped depending on flags) + * @param value entry value to add to *pm (will be av_strduped depending on flags). + * Passing a NULL value will cause an existing tag to be deleted. + * @return >= 0 on success otherwise an error code <0 + */ +int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags); + +/** + * Copy entries from one AVDictionary struct into another. + * @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL, + * this function will allocate a struct for you and put it in *dst + * @param src pointer to source AVDictionary struct + * @param flags flags to use when setting entries in *dst + * @note metadata is read using the AV_DICT_IGNORE_SUFFIX flag + */ +void av_dict_copy(AVDictionary **dst, AVDictionary *src, int flags); + +/** + * Free all the memory allocated for an AVDictionary struct + * and all keys and values. + */ +void av_dict_free(AVDictionary **m); + +#endif // AVUTIL_DICT_H diff --git a/ffmpeg 0.8/include/libavutil/error.h b/ffmpeg 0.8/include/libavutil/error.h new file mode 100644 index 000000000..47d366ebb --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/error.h @@ -0,0 +1,68 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * error code definitions + */ + +#ifndef AVUTIL_ERROR_H +#define AVUTIL_ERROR_H + +#include +#include "avutil.h" + +/* error handling */ +#if EDOM > 0 +#define AVERROR(e) (-(e)) ///< Returns a negative error code from a POSIX error code, to return from library functions. +#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value. +#else +/* Some platforms have E* and errno already negated. */ +#define AVERROR(e) (e) +#define AVUNERROR(e) (e) +#endif + +#define AVERROR_BSF_NOT_FOUND (-MKTAG(0xF8,'B','S','F')) ///< Bitstream filter not found +#define AVERROR_DECODER_NOT_FOUND (-MKTAG(0xF8,'D','E','C')) ///< Decoder not found +#define AVERROR_DEMUXER_NOT_FOUND (-MKTAG(0xF8,'D','E','M')) ///< Demuxer not found +#define AVERROR_ENCODER_NOT_FOUND (-MKTAG(0xF8,'E','N','C')) ///< Encoder not found +#define AVERROR_EOF (-MKTAG( 'E','O','F',' ')) ///< End of file +#define AVERROR_EXIT (-MKTAG( 'E','X','I','T')) ///< Immediate exit was requested; the called function should not be restarted +#define AVERROR_FILTER_NOT_FOUND (-MKTAG(0xF8,'F','I','L')) ///< Filter not found +#define AVERROR_INVALIDDATA (-MKTAG( 'I','N','D','A')) ///< Invalid data found when processing input +#define AVERROR_MUXER_NOT_FOUND (-MKTAG(0xF8,'M','U','X')) ///< Muxer not found +#define AVERROR_OPTION_NOT_FOUND (-MKTAG(0xF8,'O','P','T')) ///< Option not found +#define AVERROR_PATCHWELCOME (-MKTAG( 'P','A','W','E')) ///< Not yet implemented in FFmpeg, patches welcome +#define AVERROR_PROTOCOL_NOT_FOUND (-MKTAG(0xF8,'P','R','O')) ///< Protocol not found +#define AVERROR_STREAM_NOT_FOUND (-MKTAG(0xF8,'S','T','R')) ///< Stream not found + +/** + * Put a description of the AVERROR code errnum in errbuf. + * In case of failure the global variable errno is set to indicate the + * error. Even in case of failure av_strerror() will print a generic + * error message indicating the errnum provided to errbuf. + * + * @param errnum error code to describe + * @param errbuf buffer to which description is written + * @param errbuf_size the size in bytes of errbuf + * @return 0 on success, a negative value if a description for errnum + * cannot be found + */ +int av_strerror(int errnum, char *errbuf, size_t errbuf_size); + +#endif /* AVUTIL_ERROR_H */ diff --git a/ffmpeg 0.8/include/libavutil/eval.h b/ffmpeg 0.8/include/libavutil/eval.h new file mode 100644 index 000000000..ee378a29b --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/eval.h @@ -0,0 +1,146 @@ +/* + * Copyright (c) 2002 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * simple arithmetic expression evaluator + */ + +#ifndef AVUTIL_EVAL_H +#define AVUTIL_EVAL_H + +#include "avutil.h" + +typedef struct AVExpr AVExpr; + +/** + * Parse and evaluate an expression. + * Note, this is significantly slower than av_expr_eval(). + * + * @param res a pointer to a double where is put the result value of + * the expression, or NAN in case of error + * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)" + * @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0} + * @param const_values a zero terminated array of values for the identifiers from const_names + * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers + * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument + * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers + * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments + * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2 + * @param log_ctx parent logging context + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code otherwise + */ +int av_expr_parse_and_eval(double *res, const char *s, + const char * const *const_names, const double *const_values, + const char * const *func1_names, double (* const *funcs1)(void *, double), + const char * const *func2_names, double (* const *funcs2)(void *, double, double), + void *opaque, int log_offset, void *log_ctx); + +/** + * Parse an expression. + * + * @param expr a pointer where is put an AVExpr containing the parsed + * value in case of successfull parsing, or NULL otherwise. + * The pointed to AVExpr must be freed with av_expr_free() by the user + * when it is not needed anymore. + * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)" + * @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0} + * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers + * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument + * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers + * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments + * @param log_ctx parent logging context + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code otherwise + */ +int av_expr_parse(AVExpr **expr, const char *s, + const char * const *const_names, + const char * const *func1_names, double (* const *funcs1)(void *, double), + const char * const *func2_names, double (* const *funcs2)(void *, double, double), + int log_offset, void *log_ctx); + +/** + * Evaluate a previously parsed expression. + * + * @param const_values a zero terminated array of values for the identifiers from av_expr_parse() const_names + * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2 + * @return the value of the expression + */ +double av_expr_eval(AVExpr *e, const double *const_values, void *opaque); + +/** + * Free a parsed expression previously created with av_expr_parse(). + */ +void av_expr_free(AVExpr *e); + +#if FF_API_OLD_EVAL_NAMES +/** + * @deprecated Deprecated in favor of av_expr_parse_and_eval(). + */ +attribute_deprecated +int av_parse_and_eval_expr(double *res, const char *s, + const char * const *const_names, const double *const_values, + const char * const *func1_names, double (* const *funcs1)(void *, double), + const char * const *func2_names, double (* const *funcs2)(void *, double, double), + void *opaque, int log_offset, void *log_ctx); + +/** + * @deprecated Deprecated in favor of av_expr_parse(). + */ +attribute_deprecated +int av_parse_expr(AVExpr **expr, const char *s, + const char * const *const_names, + const char * const *func1_names, double (* const *funcs1)(void *, double), + const char * const *func2_names, double (* const *funcs2)(void *, double, double), + int log_offset, void *log_ctx); +/** + * @deprecated Deprecated in favor of av_expr_eval(). + */ +attribute_deprecated +double av_eval_expr(AVExpr *e, const double *const_values, void *opaque); + +/** + * @deprecated Deprecated in favor of av_expr_free(). + */ +attribute_deprecated +void av_free_expr(AVExpr *e); +#endif /* FF_API_OLD_EVAL_NAMES */ + +/** + * Parse the string in numstr and return its value as a double. If + * the string is empty, contains only whitespaces, or does not contain + * an initial substring that has the expected syntax for a + * floating-point number, no conversion is performed. In this case, + * returns a value of zero and the value returned in tail is the value + * of numstr. + * + * @param numstr a string representing a number, may contain one of + * the International System number postfixes, for example 'K', 'M', + * 'G'. If 'i' is appended after the postfix, powers of 2 are used + * instead of powers of 10. The 'B' postfix multiplies the value for + * 8, and can be appended after another postfix or used alone. This + * allows using for example 'KB', 'MiB', 'G' and 'B' as postfix. + * @param tail if non-NULL puts here the pointer to the char next + * after the last parsed character + */ +double av_strtod(const char *numstr, char **tail); + +#endif /* AVUTIL_EVAL_H */ diff --git a/ffmpeg 0.8/include/libavutil/fifo.h b/ffmpeg 0.8/include/libavutil/fifo.h new file mode 100644 index 000000000..22a9aa5d1 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/fifo.h @@ -0,0 +1,143 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * a very simple circular buffer FIFO implementation + */ + +#ifndef AVUTIL_FIFO_H +#define AVUTIL_FIFO_H + +#include +#include "avutil.h" + +typedef struct AVFifoBuffer { + uint8_t *buffer; + uint8_t *rptr, *wptr, *end; + uint32_t rndx, wndx; +} AVFifoBuffer; + +/** + * Initialize an AVFifoBuffer. + * @param size of FIFO + * @return AVFifoBuffer or NULL in case of memory allocation failure + */ +AVFifoBuffer *av_fifo_alloc(unsigned int size); + +/** + * Free an AVFifoBuffer. + * @param f AVFifoBuffer to free + */ +void av_fifo_free(AVFifoBuffer *f); + +/** + * Reset the AVFifoBuffer to the state right after av_fifo_alloc, in particular it is emptied. + * @param f AVFifoBuffer to reset + */ +void av_fifo_reset(AVFifoBuffer *f); + +/** + * Return the amount of data in bytes in the AVFifoBuffer, that is the + * amount of data you can read from it. + * @param f AVFifoBuffer to read from + * @return size + */ +int av_fifo_size(AVFifoBuffer *f); + +/** + * Return the amount of space in bytes in the AVFifoBuffer, that is the + * amount of data you can write into it. + * @param f AVFifoBuffer to write into + * @return size + */ +int av_fifo_space(AVFifoBuffer *f); + +/** + * Feed data from an AVFifoBuffer to a user-supplied callback. + * @param f AVFifoBuffer to read from + * @param buf_size number of bytes to read + * @param func generic read function + * @param dest data destination + */ +int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int)); + +/** + * Feed data from a user-supplied callback to an AVFifoBuffer. + * @param f AVFifoBuffer to write to + * @param src data source; non-const since it may be used as a + * modifiable context by the function defined in func + * @param size number of bytes to write + * @param func generic write function; the first parameter is src, + * the second is dest_buf, the third is dest_buf_size. + * func must return the number of bytes written to dest_buf, or <= 0 to + * indicate no more data available to write. + * If func is NULL, src is interpreted as a simple byte array for source data. + * @return the number of bytes written to the FIFO + */ +int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int (*func)(void*, void*, int)); + +/** + * Resize an AVFifoBuffer. + * In case of reallocation failure, the old FIFO is kept unchanged. + * + * @param f AVFifoBuffer to resize + * @param size new AVFifoBuffer size in bytes + * @return <0 for failure, >=0 otherwise + */ +int av_fifo_realloc2(AVFifoBuffer *f, unsigned int size); + +/** + * Read and discard the specified amount of data from an AVFifoBuffer. + * @param f AVFifoBuffer to read from + * @param size amount of data to read in bytes + */ +void av_fifo_drain(AVFifoBuffer *f, int size); + +/** + * Return a pointer to the data stored in a FIFO buffer at a certain offset. + * The FIFO buffer is not modified. + * + * @param f AVFifoBuffer to peek at, f must be non-NULL + * @param offs an offset in bytes, its absolute value must be less + * than the used buffer size or the returned pointer will + * point outside to the buffer data. + * The used buffer size can be checked with av_fifo_size(). + */ +static inline uint8_t *av_fifo_peek2(const AVFifoBuffer *f, int offs) +{ + uint8_t *ptr = f->rptr + offs; + if (ptr >= f->end) + ptr = f->buffer + (ptr - f->end); + else if (ptr < f->buffer) + ptr = f->end - (f->buffer - ptr); + return ptr; +} + +#if FF_API_AV_FIFO_PEEK +/** + * @deprecated Use av_fifo_peek2() instead. + */ +attribute_deprecated +static inline uint8_t av_fifo_peek(AVFifoBuffer *f, int offs) +{ + return *av_fifo_peek2(f, offs); +} +#endif + +#endif /* AVUTIL_FIFO_H */ diff --git a/ffmpeg 0.8/include/libavutil/file.h b/ffmpeg 0.8/include/libavutil/file.h new file mode 100644 index 000000000..f3af9ef7e --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/file.h @@ -0,0 +1,61 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_FILE_H +#define AVUTIL_FILE_H + +#include "avutil.h" + +/** + * @file + * Misc file utilities. + */ + +/** + * Read the file with name filename, and put its content in a newly + * allocated buffer or map it with mmap() when available. + * In case of success set *bufptr to the read or mmapped buffer, and + * *size to the size in bytes of the buffer in *bufptr. + * The returned buffer must be released with av_file_unmap(). + * + * @param log_offset loglevel offset used for logging + * @param log_ctx context used for logging + * @return a non negative number in case of success, a negative value + * corresponding to an AVERROR error code in case of failure + */ +int av_file_map(const char *filename, uint8_t **bufptr, size_t *size, + int log_offset, void *log_ctx); + +/** + * Unmap or free the buffer bufptr created by av_file_map(). + * + * @param size size in bytes of bufptr, must be the same as returned + * by av_file_map() + */ +void av_file_unmap(uint8_t *bufptr, size_t size); + +/** + * Wrapper to work around the lack of mkstemp() on mingw. + * Also, tries to create file in /tmp first, if possible. + * *prefix can be a character constant; *filename will be allocated internally. + * @return file descriptor of opened file (or -1 on error) + * and opened file name in **filename. + */ +int av_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx); + +#endif /* AVUTIL_FILE_H */ diff --git a/ffmpeg 0.8/include/libavutil/imgutils.h b/ffmpeg 0.8/include/libavutil/imgutils.h new file mode 100644 index 000000000..f976d210b --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/imgutils.h @@ -0,0 +1,130 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_IMGUTILS_H +#define AVUTIL_IMGUTILS_H + +/** + * @file + * misc image utilities + */ + +#include "avutil.h" +#include "pixdesc.h" + +/** + * Compute the max pixel step for each plane of an image with a + * format described by pixdesc. + * + * The pixel step is the distance in bytes between the first byte of + * the group of bytes which describe a pixel component and the first + * byte of the successive group in the same plane for the same + * component. + * + * @param max_pixsteps an array which is filled with the max pixel step + * for each plane. Since a plane may contain different pixel + * components, the computed max_pixsteps[plane] is relative to the + * component in the plane with the max pixel step. + * @param max_pixstep_comps an array which is filled with the component + * for each plane which has the max pixel step. May be NULL. + */ +void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4], + const AVPixFmtDescriptor *pixdesc); + +/** + * Compute the size of an image line with format pix_fmt and width + * width for the plane plane. + * + * @return the computed size in bytes + */ +int av_image_get_linesize(enum PixelFormat pix_fmt, int width, int plane); + +/** + * Fill plane linesizes for an image with pixel format pix_fmt and + * width width. + * + * @param linesizes array to be filled with the linesize for each plane + * @return >= 0 in case of success, a negative error code otherwise + */ +int av_image_fill_linesizes(int linesizes[4], enum PixelFormat pix_fmt, int width); + +/** + * Fill plane data pointers for an image with pixel format pix_fmt and + * height height. + * + * @param data pointers array to be filled with the pointer for each image plane + * @param ptr the pointer to a buffer which will contain the image + * @param linesizes the array containing the linesize for each + * plane, should be filled by av_image_fill_linesizes() + * @return the size in bytes required for the image buffer, a negative + * error code in case of failure + */ +int av_image_fill_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int height, + uint8_t *ptr, const int linesizes[4]); + +/** + * Allocate an image with size w and h and pixel format pix_fmt, and + * fill pointers and linesizes accordingly. + * The allocated image buffer has to be freed by using + * av_freep(&pointers[0]). + * + * @param align the value to use for buffer size alignment + * @return the size in bytes required for the image buffer, a negative + * error code in case of failure + */ +int av_image_alloc(uint8_t *pointers[4], int linesizes[4], + int w, int h, enum PixelFormat pix_fmt, int align); + +/** + * Copy image plane from src to dst. + * That is, copy "height" number of lines of "bytewidth" bytes each. + * The first byte of each successive line is separated by *_linesize + * bytes. + * + * @param dst_linesize linesize for the image plane in dst + * @param src_linesize linesize for the image plane in src + */ +void av_image_copy_plane(uint8_t *dst, int dst_linesize, + const uint8_t *src, int src_linesize, + int bytewidth, int height); + +/** + * Copy image in src_data to dst_data. + * + * @param dst_linesizes linesizes for the image in dst_data + * @param src_linesizes linesizes for the image in src_data + */ +void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4], + const uint8_t *src_data[4], const int src_linesizes[4], + enum PixelFormat pix_fmt, int width, int height); + +/** + * Check if the given dimension of an image is valid, meaning that all + * bytes of the image can be addressed with a signed int. + * + * @param w the width of the picture + * @param h the height of the picture + * @param log_offset the offset to sum to the log level for logging with log_ctx + * @param log_ctx the parent logging context, it may be NULL + * @return >= 0 if valid, a negative error code otherwise + */ +int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx); + +int ff_set_systematic_pal2(uint32_t pal[256], enum PixelFormat pix_fmt); + +#endif /* AVUTIL_IMGUTILS_H */ diff --git a/ffmpeg 0.8/include/libavutil/intfloat_readwrite.h b/ffmpeg 0.8/include/libavutil/intfloat_readwrite.h new file mode 100644 index 000000000..1b80fc6e9 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/intfloat_readwrite.h @@ -0,0 +1,40 @@ +/* + * copyright (c) 2005 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_INTFLOAT_READWRITE_H +#define AVUTIL_INTFLOAT_READWRITE_H + +#include +#include "attributes.h" + +/* IEEE 80 bits extended float */ +typedef struct AVExtFloat { + uint8_t exponent[2]; + uint8_t mantissa[8]; +} AVExtFloat; + +double av_int2dbl(int64_t v) av_const; +float av_int2flt(int32_t v) av_const; +double av_ext2dbl(const AVExtFloat ext) av_const; +int64_t av_dbl2int(double d) av_const; +int32_t av_flt2int(float d) av_const; +AVExtFloat av_dbl2ext(double d) av_const; + +#endif /* AVUTIL_INTFLOAT_READWRITE_H */ diff --git a/ffmpeg 0.8/include/libavutil/intreadwrite.h b/ffmpeg 0.8/include/libavutil/intreadwrite.h new file mode 100644 index 000000000..09d796c8b --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/intreadwrite.h @@ -0,0 +1,522 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_INTREADWRITE_H +#define AVUTIL_INTREADWRITE_H + +#include +#include "libavutil/avconfig.h" +#include "attributes.h" +#include "bswap.h" + +typedef union { + uint64_t u64; + uint32_t u32[2]; + uint16_t u16[4]; + uint8_t u8 [8]; + double f64; + float f32[2]; +} av_alias av_alias64; + +typedef union { + uint32_t u32; + uint16_t u16[2]; + uint8_t u8 [4]; + float f32; +} av_alias av_alias32; + +typedef union { + uint16_t u16; + uint8_t u8 [2]; +} av_alias av_alias16; + +/* + * Arch-specific headers can provide any combination of + * AV_[RW][BLN](16|24|32|64) and AV_(COPY|SWAP|ZERO)(64|128) macros. + * Preprocessor symbols must be defined, even if these are implemented + * as inline functions. + */ + +#ifdef HAVE_AV_CONFIG_H + +#include "config.h" + +#if ARCH_ARM +# include "arm/intreadwrite.h" +#elif ARCH_AVR32 +# include "avr32/intreadwrite.h" +#elif ARCH_MIPS +# include "mips/intreadwrite.h" +#elif ARCH_PPC +# include "ppc/intreadwrite.h" +#elif ARCH_TOMI +# include "tomi/intreadwrite.h" +#elif ARCH_X86 +# include "x86/intreadwrite.h" +#endif + +#endif /* HAVE_AV_CONFIG_H */ + +/* + * Map AV_RNXX <-> AV_R[BL]XX for all variants provided by per-arch headers. + */ + +#if AV_HAVE_BIGENDIAN + +# if defined(AV_RN16) && !defined(AV_RB16) +# define AV_RB16(p) AV_RN16(p) +# elif !defined(AV_RN16) && defined(AV_RB16) +# define AV_RN16(p) AV_RB16(p) +# endif + +# if defined(AV_WN16) && !defined(AV_WB16) +# define AV_WB16(p, v) AV_WN16(p, v) +# elif !defined(AV_WN16) && defined(AV_WB16) +# define AV_WN16(p, v) AV_WB16(p, v) +# endif + +# if defined(AV_RN24) && !defined(AV_RB24) +# define AV_RB24(p) AV_RN24(p) +# elif !defined(AV_RN24) && defined(AV_RB24) +# define AV_RN24(p) AV_RB24(p) +# endif + +# if defined(AV_WN24) && !defined(AV_WB24) +# define AV_WB24(p, v) AV_WN24(p, v) +# elif !defined(AV_WN24) && defined(AV_WB24) +# define AV_WN24(p, v) AV_WB24(p, v) +# endif + +# if defined(AV_RN32) && !defined(AV_RB32) +# define AV_RB32(p) AV_RN32(p) +# elif !defined(AV_RN32) && defined(AV_RB32) +# define AV_RN32(p) AV_RB32(p) +# endif + +# if defined(AV_WN32) && !defined(AV_WB32) +# define AV_WB32(p, v) AV_WN32(p, v) +# elif !defined(AV_WN32) && defined(AV_WB32) +# define AV_WN32(p, v) AV_WB32(p, v) +# endif + +# if defined(AV_RN64) && !defined(AV_RB64) +# define AV_RB64(p) AV_RN64(p) +# elif !defined(AV_RN64) && defined(AV_RB64) +# define AV_RN64(p) AV_RB64(p) +# endif + +# if defined(AV_WN64) && !defined(AV_WB64) +# define AV_WB64(p, v) AV_WN64(p, v) +# elif !defined(AV_WN64) && defined(AV_WB64) +# define AV_WN64(p, v) AV_WB64(p, v) +# endif + +#else /* AV_HAVE_BIGENDIAN */ + +# if defined(AV_RN16) && !defined(AV_RL16) +# define AV_RL16(p) AV_RN16(p) +# elif !defined(AV_RN16) && defined(AV_RL16) +# define AV_RN16(p) AV_RL16(p) +# endif + +# if defined(AV_WN16) && !defined(AV_WL16) +# define AV_WL16(p, v) AV_WN16(p, v) +# elif !defined(AV_WN16) && defined(AV_WL16) +# define AV_WN16(p, v) AV_WL16(p, v) +# endif + +# if defined(AV_RN24) && !defined(AV_RL24) +# define AV_RL24(p) AV_RN24(p) +# elif !defined(AV_RN24) && defined(AV_RL24) +# define AV_RN24(p) AV_RL24(p) +# endif + +# if defined(AV_WN24) && !defined(AV_WL24) +# define AV_WL24(p, v) AV_WN24(p, v) +# elif !defined(AV_WN24) && defined(AV_WL24) +# define AV_WN24(p, v) AV_WL24(p, v) +# endif + +# if defined(AV_RN32) && !defined(AV_RL32) +# define AV_RL32(p) AV_RN32(p) +# elif !defined(AV_RN32) && defined(AV_RL32) +# define AV_RN32(p) AV_RL32(p) +# endif + +# if defined(AV_WN32) && !defined(AV_WL32) +# define AV_WL32(p, v) AV_WN32(p, v) +# elif !defined(AV_WN32) && defined(AV_WL32) +# define AV_WN32(p, v) AV_WL32(p, v) +# endif + +# if defined(AV_RN64) && !defined(AV_RL64) +# define AV_RL64(p) AV_RN64(p) +# elif !defined(AV_RN64) && defined(AV_RL64) +# define AV_RN64(p) AV_RL64(p) +# endif + +# if defined(AV_WN64) && !defined(AV_WL64) +# define AV_WL64(p, v) AV_WN64(p, v) +# elif !defined(AV_WN64) && defined(AV_WL64) +# define AV_WN64(p, v) AV_WL64(p, v) +# endif + +#endif /* !AV_HAVE_BIGENDIAN */ + +/* + * Define AV_[RW]N helper macros to simplify definitions not provided + * by per-arch headers. + */ + +#if defined(__GNUC__) && !defined(__TI_COMPILER_VERSION__) + +union unaligned_64 { uint64_t l; } __attribute__((packed)) av_alias; +union unaligned_32 { uint32_t l; } __attribute__((packed)) av_alias; +union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias; + +# define AV_RN(s, p) (((const union unaligned_##s *) (p))->l) +# define AV_WN(s, p, v) ((((union unaligned_##s *) (p))->l) = (v)) + +#elif defined(__DECC) + +# define AV_RN(s, p) (*((const __unaligned uint##s##_t*)(p))) +# define AV_WN(s, p, v) (*((__unaligned uint##s##_t*)(p)) = (v)) + +#elif AV_HAVE_FAST_UNALIGNED + +# define AV_RN(s, p) (((const av_alias##s*)(p))->u##s) +# define AV_WN(s, p, v) (((av_alias##s*)(p))->u##s = (v)) + +#else + +#ifndef AV_RB16 +# define AV_RB16(x) \ + ((((const uint8_t*)(x))[0] << 8) | \ + ((const uint8_t*)(x))[1]) +#endif +#ifndef AV_WB16 +# define AV_WB16(p, d) do { \ + ((uint8_t*)(p))[1] = (d); \ + ((uint8_t*)(p))[0] = (d)>>8; \ + } while(0) +#endif + +#ifndef AV_RL16 +# define AV_RL16(x) \ + ((((const uint8_t*)(x))[1] << 8) | \ + ((const uint8_t*)(x))[0]) +#endif +#ifndef AV_WL16 +# define AV_WL16(p, d) do { \ + ((uint8_t*)(p))[0] = (d); \ + ((uint8_t*)(p))[1] = (d)>>8; \ + } while(0) +#endif + +#ifndef AV_RB32 +# define AV_RB32(x) \ + (((uint32_t)((const uint8_t*)(x))[0] << 24) | \ + (((const uint8_t*)(x))[1] << 16) | \ + (((const uint8_t*)(x))[2] << 8) | \ + ((const uint8_t*)(x))[3]) +#endif +#ifndef AV_WB32 +# define AV_WB32(p, d) do { \ + ((uint8_t*)(p))[3] = (d); \ + ((uint8_t*)(p))[2] = (d)>>8; \ + ((uint8_t*)(p))[1] = (d)>>16; \ + ((uint8_t*)(p))[0] = (d)>>24; \ + } while(0) +#endif + +#ifndef AV_RL32 +# define AV_RL32(x) \ + (((uint32_t)((const uint8_t*)(x))[3] << 24) | \ + (((const uint8_t*)(x))[2] << 16) | \ + (((const uint8_t*)(x))[1] << 8) | \ + ((const uint8_t*)(x))[0]) +#endif +#ifndef AV_WL32 +# define AV_WL32(p, d) do { \ + ((uint8_t*)(p))[0] = (d); \ + ((uint8_t*)(p))[1] = (d)>>8; \ + ((uint8_t*)(p))[2] = (d)>>16; \ + ((uint8_t*)(p))[3] = (d)>>24; \ + } while(0) +#endif + +#ifndef AV_RB64 +# define AV_RB64(x) \ + (((uint64_t)((const uint8_t*)(x))[0] << 56) | \ + ((uint64_t)((const uint8_t*)(x))[1] << 48) | \ + ((uint64_t)((const uint8_t*)(x))[2] << 40) | \ + ((uint64_t)((const uint8_t*)(x))[3] << 32) | \ + ((uint64_t)((const uint8_t*)(x))[4] << 24) | \ + ((uint64_t)((const uint8_t*)(x))[5] << 16) | \ + ((uint64_t)((const uint8_t*)(x))[6] << 8) | \ + (uint64_t)((const uint8_t*)(x))[7]) +#endif +#ifndef AV_WB64 +# define AV_WB64(p, d) do { \ + ((uint8_t*)(p))[7] = (d); \ + ((uint8_t*)(p))[6] = (d)>>8; \ + ((uint8_t*)(p))[5] = (d)>>16; \ + ((uint8_t*)(p))[4] = (d)>>24; \ + ((uint8_t*)(p))[3] = (d)>>32; \ + ((uint8_t*)(p))[2] = (d)>>40; \ + ((uint8_t*)(p))[1] = (d)>>48; \ + ((uint8_t*)(p))[0] = (d)>>56; \ + } while(0) +#endif + +#ifndef AV_RL64 +# define AV_RL64(x) \ + (((uint64_t)((const uint8_t*)(x))[7] << 56) | \ + ((uint64_t)((const uint8_t*)(x))[6] << 48) | \ + ((uint64_t)((const uint8_t*)(x))[5] << 40) | \ + ((uint64_t)((const uint8_t*)(x))[4] << 32) | \ + ((uint64_t)((const uint8_t*)(x))[3] << 24) | \ + ((uint64_t)((const uint8_t*)(x))[2] << 16) | \ + ((uint64_t)((const uint8_t*)(x))[1] << 8) | \ + (uint64_t)((const uint8_t*)(x))[0]) +#endif +#ifndef AV_WL64 +# define AV_WL64(p, d) do { \ + ((uint8_t*)(p))[0] = (d); \ + ((uint8_t*)(p))[1] = (d)>>8; \ + ((uint8_t*)(p))[2] = (d)>>16; \ + ((uint8_t*)(p))[3] = (d)>>24; \ + ((uint8_t*)(p))[4] = (d)>>32; \ + ((uint8_t*)(p))[5] = (d)>>40; \ + ((uint8_t*)(p))[6] = (d)>>48; \ + ((uint8_t*)(p))[7] = (d)>>56; \ + } while(0) +#endif + +#if AV_HAVE_BIGENDIAN +# define AV_RN(s, p) AV_RB##s(p) +# define AV_WN(s, p, v) AV_WB##s(p, v) +#else +# define AV_RN(s, p) AV_RL##s(p) +# define AV_WN(s, p, v) AV_WL##s(p, v) +#endif + +#endif /* HAVE_FAST_UNALIGNED */ + +#ifndef AV_RN16 +# define AV_RN16(p) AV_RN(16, p) +#endif + +#ifndef AV_RN32 +# define AV_RN32(p) AV_RN(32, p) +#endif + +#ifndef AV_RN64 +# define AV_RN64(p) AV_RN(64, p) +#endif + +#ifndef AV_WN16 +# define AV_WN16(p, v) AV_WN(16, p, v) +#endif + +#ifndef AV_WN32 +# define AV_WN32(p, v) AV_WN(32, p, v) +#endif + +#ifndef AV_WN64 +# define AV_WN64(p, v) AV_WN(64, p, v) +#endif + +#if AV_HAVE_BIGENDIAN +# define AV_RB(s, p) AV_RN##s(p) +# define AV_WB(s, p, v) AV_WN##s(p, v) +# define AV_RL(s, p) av_bswap##s(AV_RN##s(p)) +# define AV_WL(s, p, v) AV_WN##s(p, av_bswap##s(v)) +#else +# define AV_RB(s, p) av_bswap##s(AV_RN##s(p)) +# define AV_WB(s, p, v) AV_WN##s(p, av_bswap##s(v)) +# define AV_RL(s, p) AV_RN##s(p) +# define AV_WL(s, p, v) AV_WN##s(p, v) +#endif + +#define AV_RB8(x) (((const uint8_t*)(x))[0]) +#define AV_WB8(p, d) do { ((uint8_t*)(p))[0] = (d); } while(0) + +#define AV_RL8(x) AV_RB8(x) +#define AV_WL8(p, d) AV_WB8(p, d) + +#ifndef AV_RB16 +# define AV_RB16(p) AV_RB(16, p) +#endif +#ifndef AV_WB16 +# define AV_WB16(p, v) AV_WB(16, p, v) +#endif + +#ifndef AV_RL16 +# define AV_RL16(p) AV_RL(16, p) +#endif +#ifndef AV_WL16 +# define AV_WL16(p, v) AV_WL(16, p, v) +#endif + +#ifndef AV_RB32 +# define AV_RB32(p) AV_RB(32, p) +#endif +#ifndef AV_WB32 +# define AV_WB32(p, v) AV_WB(32, p, v) +#endif + +#ifndef AV_RL32 +# define AV_RL32(p) AV_RL(32, p) +#endif +#ifndef AV_WL32 +# define AV_WL32(p, v) AV_WL(32, p, v) +#endif + +#ifndef AV_RB64 +# define AV_RB64(p) AV_RB(64, p) +#endif +#ifndef AV_WB64 +# define AV_WB64(p, v) AV_WB(64, p, v) +#endif + +#ifndef AV_RL64 +# define AV_RL64(p) AV_RL(64, p) +#endif +#ifndef AV_WL64 +# define AV_WL64(p, v) AV_WL(64, p, v) +#endif + +#ifndef AV_RB24 +# define AV_RB24(x) \ + ((((const uint8_t*)(x))[0] << 16) | \ + (((const uint8_t*)(x))[1] << 8) | \ + ((const uint8_t*)(x))[2]) +#endif +#ifndef AV_WB24 +# define AV_WB24(p, d) do { \ + ((uint8_t*)(p))[2] = (d); \ + ((uint8_t*)(p))[1] = (d)>>8; \ + ((uint8_t*)(p))[0] = (d)>>16; \ + } while(0) +#endif + +#ifndef AV_RL24 +# define AV_RL24(x) \ + ((((const uint8_t*)(x))[2] << 16) | \ + (((const uint8_t*)(x))[1] << 8) | \ + ((const uint8_t*)(x))[0]) +#endif +#ifndef AV_WL24 +# define AV_WL24(p, d) do { \ + ((uint8_t*)(p))[0] = (d); \ + ((uint8_t*)(p))[1] = (d)>>8; \ + ((uint8_t*)(p))[2] = (d)>>16; \ + } while(0) +#endif + +/* + * The AV_[RW]NA macros access naturally aligned data + * in a type-safe way. + */ + +#define AV_RNA(s, p) (((const av_alias##s*)(p))->u##s) +#define AV_WNA(s, p, v) (((av_alias##s*)(p))->u##s = (v)) + +#ifndef AV_RN16A +# define AV_RN16A(p) AV_RNA(16, p) +#endif + +#ifndef AV_RN32A +# define AV_RN32A(p) AV_RNA(32, p) +#endif + +#ifndef AV_RN64A +# define AV_RN64A(p) AV_RNA(64, p) +#endif + +#ifndef AV_WN16A +# define AV_WN16A(p, v) AV_WNA(16, p, v) +#endif + +#ifndef AV_WN32A +# define AV_WN32A(p, v) AV_WNA(32, p, v) +#endif + +#ifndef AV_WN64A +# define AV_WN64A(p, v) AV_WNA(64, p, v) +#endif + +/* Parameters for AV_COPY*, AV_SWAP*, AV_ZERO* must be + * naturally aligned. They may be implemented using MMX, + * so emms_c() must be called before using any float code + * afterwards. + */ + +#define AV_COPY(n, d, s) \ + (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n) + +#ifndef AV_COPY16 +# define AV_COPY16(d, s) AV_COPY(16, d, s) +#endif + +#ifndef AV_COPY32 +# define AV_COPY32(d, s) AV_COPY(32, d, s) +#endif + +#ifndef AV_COPY64 +# define AV_COPY64(d, s) AV_COPY(64, d, s) +#endif + +#ifndef AV_COPY128 +# define AV_COPY128(d, s) \ + do { \ + AV_COPY64(d, s); \ + AV_COPY64((char*)(d)+8, (char*)(s)+8); \ + } while(0) +#endif + +#define AV_SWAP(n, a, b) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b)) + +#ifndef AV_SWAP64 +# define AV_SWAP64(a, b) AV_SWAP(64, a, b) +#endif + +#define AV_ZERO(n, d) (((av_alias##n*)(d))->u##n = 0) + +#ifndef AV_ZERO16 +# define AV_ZERO16(d) AV_ZERO(16, d) +#endif + +#ifndef AV_ZERO32 +# define AV_ZERO32(d) AV_ZERO(32, d) +#endif + +#ifndef AV_ZERO64 +# define AV_ZERO64(d) AV_ZERO(64, d) +#endif + +#ifndef AV_ZERO128 +# define AV_ZERO128(d) \ + do { \ + AV_ZERO64(d); \ + AV_ZERO64((char*)(d)+8); \ + } while(0) +#endif + +#endif /* AVUTIL_INTREADWRITE_H */ diff --git a/ffmpeg 0.8/include/libavutil/lfg.h b/ffmpeg 0.8/include/libavutil/lfg.h new file mode 100644 index 000000000..854ffce73 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/lfg.h @@ -0,0 +1,62 @@ +/* + * Lagged Fibonacci PRNG + * Copyright (c) 2008 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_LFG_H +#define AVUTIL_LFG_H + +typedef struct { + unsigned int state[64]; + int index; +} AVLFG; + +void av_lfg_init(AVLFG *c, unsigned int seed); + +/** + * Get the next random unsigned 32-bit number using an ALFG. + * + * Please also consider a simple LCG like state= state*1664525+1013904223, + * it may be good enough and faster for your specific use case. + */ +static inline unsigned int av_lfg_get(AVLFG *c){ + c->state[c->index & 63] = c->state[(c->index-24) & 63] + c->state[(c->index-55) & 63]; + return c->state[c->index++ & 63]; +} + +/** + * Get the next random unsigned 32-bit number using a MLFG. + * + * Please also consider av_lfg_get() above, it is faster. + */ +static inline unsigned int av_mlfg_get(AVLFG *c){ + unsigned int a= c->state[(c->index-55) & 63]; + unsigned int b= c->state[(c->index-24) & 63]; + return c->state[c->index++ & 63] = 2*a*b+a+b; +} + +/** + * Get the next two numbers generated by a Box-Muller Gaussian + * generator using the random numbers issued by lfg. + * + * @param out array where the two generated numbers are placed + */ +void av_bmg_get(AVLFG *lfg, double out[2]); + +#endif /* AVUTIL_LFG_H */ diff --git a/ffmpeg 0.8/include/libavutil/log.h b/ffmpeg 0.8/include/libavutil/log.h new file mode 100644 index 000000000..b8683302a --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/log.h @@ -0,0 +1,172 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_LOG_H +#define AVUTIL_LOG_H + +#include +#include "avutil.h" +#include "attributes.h" + +/** + * Describe the class of an AVClass context structure. That is an + * arbitrary struct of which the first field is a pointer to an + * AVClass struct (e.g. AVCodecContext, AVFormatContext etc.). + */ +typedef struct AVClass { + /** + * The name of the class; usually it is the same name as the + * context structure type to which the AVClass is associated. + */ + const char* class_name; + + /** + * A pointer to a function which returns the name of a context + * instance ctx associated with the class. + */ + const char* (*item_name)(void* ctx); + + /** + * a pointer to the first option specified in the class if any or NULL + * + * @see av_set_default_options() + */ + const struct AVOption *option; + + /** + * LIBAVUTIL_VERSION with which this structure was created. + * This is used to allow fields to be added without requiring major + * version bumps everywhere. + */ + + int version; + + /** + * Offset in the structure where log_level_offset is stored. + * 0 means there is no such variable + */ + int log_level_offset_offset; + + /** + * Offset in the structure where a pointer to the parent context for loging is stored. + * for example a decoder that uses eval.c could pass its AVCodecContext to eval as such + * parent context. And a av_log() implementation could then display the parent context + * can be NULL of course + */ + int parent_log_context_offset; + + /** + * Return next AVOptions-enabled child or NULL + */ + void* (*child_next)(void *obj, void *prev); + + /** + * Return an AVClass corresponding to next potential + * AVOptions-enabled child. + * + * The difference between child_next and this is that + * child_next iterates over _already existing_ objects, while + * child_class_next iterates over _all possible_ children. + */ + const struct AVClass* (*child_class_next)(const struct AVClass *prev); +} AVClass; + +/* av_log API */ + +#define AV_LOG_QUIET -8 + +/** + * Something went really wrong and we will crash now. + */ +#define AV_LOG_PANIC 0 + +/** + * Something went wrong and recovery is not possible. + * For example, no header was found for a format which depends + * on headers or an illegal combination of parameters is used. + */ +#define AV_LOG_FATAL 8 + +/** + * Something went wrong and cannot losslessly be recovered. + * However, not all future data is affected. + */ +#define AV_LOG_ERROR 16 + +/** + * Something somehow does not look correct. This may or may not + * lead to problems. An example would be the use of '-vstrict -2'. + */ +#define AV_LOG_WARNING 24 + +#define AV_LOG_INFO 32 +#define AV_LOG_VERBOSE 40 + +/** + * Stuff which is only useful for libav* developers. + */ +#define AV_LOG_DEBUG 48 + +/** + * Send the specified message to the log if the level is less than or equal + * to the current av_log_level. By default, all logging messages are sent to + * stderr. This behavior can be altered by setting a different av_vlog callback + * function. + * + * @param avcl A pointer to an arbitrary struct of which the first field is a + * pointer to an AVClass struct. + * @param level The importance level of the message, lower values signifying + * higher importance. + * @param fmt The format string (printf-compatible) that specifies how + * subsequent arguments are converted to output. + * @see av_vlog + */ +void av_log(void *avcl, int level, const char *fmt, ...) av_printf_format(3, 4); + +void av_vlog(void *avcl, int level, const char *fmt, va_list); +int av_log_get_level(void); +void av_log_set_level(int); +void av_log_set_callback(void (*)(void*, int, const char*, va_list)); +void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl); +const char* av_default_item_name(void* ctx); + +/** + * av_dlog macros + * Useful to print debug messages that shouldn't get compiled in normally. + */ + +#ifdef DEBUG +# define av_dlog(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__) +#else +# define av_dlog(pctx, ...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) +#endif + +/** + * Skip repeated messages, this requires the user app to use av_log() instead of + * (f)printf as the 2 would otherwise interfere and lead to + * "Last message repeated x times" messages below (f)printf messages with some + * bad luck. + * Also to receive the last, "last repeated" line if any, the user app must + * call av_log(NULL, AV_LOG_QUIET, "%s", ""); at the end + */ +#define AV_LOG_SKIP_REPEATED 1 +void av_log_set_flags(int arg); + +#endif /* AVUTIL_LOG_H */ diff --git a/ffmpeg 0.8/include/libavutil/lzo.h b/ffmpeg 0.8/include/libavutil/lzo.h new file mode 100644 index 000000000..ae5fc53c6 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/lzo.h @@ -0,0 +1,66 @@ +/* + * LZO 1x decompression + * copyright (c) 2006 Reimar Doeffinger + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_LZO_H +#define AVUTIL_LZO_H + +#include + +/** @name Error flags returned by av_lzo1x_decode + * \{ */ +//! end of the input buffer reached before decoding finished +#define AV_LZO_INPUT_DEPLETED 1 +//! decoded data did not fit into output buffer +#define AV_LZO_OUTPUT_FULL 2 +//! a reference to previously decoded data was wrong +#define AV_LZO_INVALID_BACKPTR 4 +//! a non-specific error in the compressed bitstream +#define AV_LZO_ERROR 8 +/** \} */ + +#define AV_LZO_INPUT_PADDING 8 +#define AV_LZO_OUTPUT_PADDING 12 + +/** + * @brief Decodes LZO 1x compressed data. + * @param out output buffer + * @param outlen size of output buffer, number of bytes left are returned here + * @param in input buffer + * @param inlen size of input buffer, number of bytes left are returned here + * @return 0 on success, otherwise a combination of the error flags above + * + * Make sure all buffers are appropriately padded, in must provide + * AV_LZO_INPUT_PADDING, out must provide AV_LZO_OUTPUT_PADDING additional bytes. + */ +int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen); + +/** + * @brief deliberately overlapping memcpy implementation + * @param dst destination buffer; must be padded with 12 additional bytes + * @param back how many bytes back we start (the initial size of the overlapping window) + * @param cnt number of bytes to copy, must be >= 0 + * + * cnt > back is valid, this will copy the bytes we just copied, + * thus creating a repeating pattern with a period length of back. + */ +void av_memcpy_backptr(uint8_t *dst, int back, int cnt); + +#endif /* AVUTIL_LZO_H */ diff --git a/ffmpeg 0.8/include/libavutil/mathematics.h b/ffmpeg 0.8/include/libavutil/mathematics.h new file mode 100644 index 000000000..882a51639 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/mathematics.h @@ -0,0 +1,112 @@ +/* + * copyright (c) 2005 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_MATHEMATICS_H +#define AVUTIL_MATHEMATICS_H + +#include +#include +#include "attributes.h" +#include "rational.h" + +#ifndef M_E +#define M_E 2.7182818284590452354 /* e */ +#endif +#ifndef M_LN2 +#define M_LN2 0.69314718055994530942 /* log_e 2 */ +#endif +#ifndef M_LN10 +#define M_LN10 2.30258509299404568402 /* log_e 10 */ +#endif +#ifndef M_LOG2_10 +#define M_LOG2_10 3.32192809488736234787 /* log_2 10 */ +#endif +#ifndef M_PHI +#define M_PHI 1.61803398874989484820 /* phi / golden ratio */ +#endif +#ifndef M_PI +#define M_PI 3.14159265358979323846 /* pi */ +#endif +#ifndef M_SQRT1_2 +#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */ +#endif +#ifndef M_SQRT2 +#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */ +#endif +#ifndef NAN +#define NAN (0.0/0.0) +#endif +#ifndef INFINITY +#define INFINITY (1.0/0.0) +#endif + +enum AVRounding { + AV_ROUND_ZERO = 0, ///< Round toward zero. + AV_ROUND_INF = 1, ///< Round away from zero. + AV_ROUND_DOWN = 2, ///< Round toward -infinity. + AV_ROUND_UP = 3, ///< Round toward +infinity. + AV_ROUND_NEAR_INF = 5, ///< Round to nearest and halfway cases away from zero. +}; + +/** + * Return the greatest common divisor of a and b. + * If both a and b are 0 or either or both are <0 then behavior is + * undefined. + */ +int64_t av_const av_gcd(int64_t a, int64_t b); + +/** + * Rescale a 64-bit integer with rounding to nearest. + * A simple a*b/c isn't possible as it can overflow. + */ +int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const; + +/** + * Rescale a 64-bit integer with specified rounding. + * A simple a*b/c isn't possible as it can overflow. + */ +int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding) av_const; + +/** + * Rescale a 64-bit integer by 2 rational numbers. + */ +int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const; + +/** + * Compare 2 timestamps each in its own timebases. + * The result of the function is undefined if one of the timestamps + * is outside the int64_t range when represented in the others timebase. + * @return -1 if ts_a is before ts_b, 1 if ts_a is after ts_b or 0 if they represent the same position + */ +int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b); + +/** + * Compare 2 integers modulo mod. + * That is we compare integers a and b for which only the least + * significant log2(mod) bits are known. + * + * @param mod must be a power of 2 + * @return a negative value if a is smaller than b + * a positive value if a is greater than b + * 0 if a equals b + */ +int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod); + +#endif /* AVUTIL_MATHEMATICS_H */ diff --git a/ffmpeg 0.8/include/libavutil/md5.h b/ffmpeg 0.8/include/libavutil/md5.h new file mode 100644 index 000000000..969202a80 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/md5.h @@ -0,0 +1,36 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_MD5_H +#define AVUTIL_MD5_H + +#include + +extern const int av_md5_size; + +struct AVMD5; + +void av_md5_init(struct AVMD5 *ctx); +void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, const int len); +void av_md5_final(struct AVMD5 *ctx, uint8_t *dst); +void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len); + +#endif /* AVUTIL_MD5_H */ + diff --git a/ffmpeg 0.8/include/libavutil/mem.h b/ffmpeg 0.8/include/libavutil/mem.h new file mode 100644 index 000000000..179e12f32 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/mem.h @@ -0,0 +1,173 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * memory handling functions + */ + +#ifndef AVUTIL_MEM_H +#define AVUTIL_MEM_H + +#include "attributes.h" +#include "error.h" +#include "avutil.h" + +#if defined(__INTEL_COMPILER) && __INTEL_COMPILER < 1110 || defined(__SUNPRO_C) + #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v + #define DECLARE_ASM_CONST(n,t,v) const t __attribute__ ((aligned (n))) v +#elif defined(__TI_COMPILER_VERSION__) + #define DECLARE_ALIGNED(n,t,v) \ + AV_PRAGMA(DATA_ALIGN(v,n)) \ + t __attribute__((aligned(n))) v + #define DECLARE_ASM_CONST(n,t,v) \ + AV_PRAGMA(DATA_ALIGN(v,n)) \ + static const t __attribute__((aligned(n))) v +#elif defined(__GNUC__) + #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v + #define DECLARE_ASM_CONST(n,t,v) static const t av_used __attribute__ ((aligned (n))) v +#elif defined(_MSC_VER) + #define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v + #define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v +#else + #define DECLARE_ALIGNED(n,t,v) t v + #define DECLARE_ASM_CONST(n,t,v) static const t v +#endif + +#if AV_GCC_VERSION_AT_LEAST(3,1) + #define av_malloc_attrib __attribute__((__malloc__)) +#else + #define av_malloc_attrib +#endif + +#if AV_GCC_VERSION_AT_LEAST(4,3) + #define av_alloc_size(n) __attribute__((alloc_size(n))) +#else + #define av_alloc_size(n) +#endif + +/** + * Allocate a block of size bytes with alignment suitable for all + * memory accesses (including vectors if available on the CPU). + * @param size Size in bytes for the memory block to be allocated. + * @return Pointer to the allocated block, NULL if the block cannot + * be allocated. + * @see av_mallocz() + */ +void *av_malloc(size_t size) av_malloc_attrib av_alloc_size(1); + +/** + * Allocate or reallocate a block of memory. + * If ptr is NULL and size > 0, allocate a new block. If + * size is zero, free the memory block pointed to by ptr. + * @param ptr Pointer to a memory block already allocated with + * av_malloc(z)() or av_realloc() or NULL. + * @param size Size in bytes for the memory block to be allocated or + * reallocated. + * @return Pointer to a newly reallocated block or NULL if the block + * cannot be reallocated or the function is used to free the memory block. + * @see av_fast_realloc() + */ +void *av_realloc(void *ptr, size_t size) av_alloc_size(2); + +/** + * Allocate or reallocate a block of memory. + * This function does the same thing as av_realloc, except: + * - It takes two arguments and checks the result of the multiplication for + * integer overflow. + * - It frees the input block in case of failure, thus avoiding the memory + * leak with the classic "buf = realloc(buf); if (!buf) return -1;". + */ +void *av_realloc_f(void *ptr, size_t nelem, size_t elsize); + +/** + * Free a memory block which has been allocated with av_malloc(z)() or + * av_realloc(). + * @param ptr Pointer to the memory block which should be freed. + * @note ptr = NULL is explicitly allowed. + * @note It is recommended that you use av_freep() instead. + * @see av_freep() + */ +void av_free(void *ptr); + +/** + * Allocate a block of size bytes with alignment suitable for all + * memory accesses (including vectors if available on the CPU) and + * zero all the bytes of the block. + * @param size Size in bytes for the memory block to be allocated. + * @return Pointer to the allocated block, NULL if it cannot be allocated. + * @see av_malloc() + */ +void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1); + +/** + * Allocate a block of nmemb * size bytes with alignment suitable for all + * memory accesses (including vectors if available on the CPU) and + * zero all the bytes of the block. + * The allocation will fail if nmemb * size is greater than or equal + * to INT_MAX. + * @param nmemb + * @param size + * @return Pointer to the allocated block, NULL if it cannot be allocated. + */ +void *av_calloc(size_t nmemb, size_t size) av_malloc_attrib; + +/** + * Duplicate the string s. + * @param s string to be duplicated + * @return Pointer to a newly allocated string containing a + * copy of s or NULL if the string cannot be allocated. + */ +char *av_strdup(const char *s) av_malloc_attrib; + +/** + * Free a memory block which has been allocated with av_malloc(z)() or + * av_realloc() and set the pointer pointing to it to NULL. + * @param ptr Pointer to the pointer to the memory block which should + * be freed. + * @see av_free() + */ +void av_freep(void *ptr); + +/** + * Add an element to a dynamic array. + * + * @param tab_ptr Pointer to the array. + * @param nb_ptr Pointer to the number of elements in the array. + * @param elem Element to be added. + */ +void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem); + +/** + * Multiply two size_t values checking for overflow. + * @return 0 if success, AVERROR(EINVAL) if overflow. + */ +static inline int av_size_mult(size_t a, size_t b, size_t *r) +{ + size_t t = a * b; + /* Hack inspired from glibc: only try the division if nelem and elsize + * are both greater than sqrt(SIZE_MAX). */ + if ((a | b) >= ((size_t)1 << (sizeof(size_t) * 4)) && a && t / a != b) + return AVERROR(EINVAL); + *r = t; + return 0; +} + +#endif /* AVUTIL_MEM_H */ diff --git a/ffmpeg 0.8/include/libavutil/opt.h b/ffmpeg 0.8/include/libavutil/opt.h new file mode 100644 index 000000000..f8a14e087 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/opt.h @@ -0,0 +1,591 @@ +/* + * AVOptions + * copyright (c) 2005 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_OPT_H +#define AVUTIL_OPT_H + +/** + * @file + * AVOptions + */ + +#include "rational.h" +#include "avutil.h" +#include "dict.h" +#include "log.h" + +/** + * @defgroup avoptions AVOptions + * @{ + * AVOptions provide a generic system to declare options on arbitrary structs + * ("objects"). An option can have a help text, a type and a range of possible + * values. Options may then be enumerated, read and written to. + * + * @section avoptions_implement Implementing AVOptions + * This section describes how to add AVOptions capabilities to a struct. + * + * All AVOptions-related information is stored in an AVClass. Therefore + * the first member of the struct must be a pointer to an AVClass describing it. + * The option field of the AVClass must be set to a NULL-terminated static array + * of AVOptions. Each AVOption must have a non-empty name, a type, a default + * value and for number-type AVOptions also a range of allowed values. It must + * also declare an offset in bytes from the start of the struct, where the field + * associated with this AVOption is located. Other fields in the AVOption struct + * should also be set when applicable, but are not required. + * + * The following example illustrates an AVOptions-enabled struct: + * @code + * typedef struct test_struct { + * AVClass *class; + * int int_opt; + * char *str_opt; + * uint8_t *bin_opt; + * int bin_len; + * } test_struct; + * + * static const AVOption options[] = { + * { "test_int", "This is a test option of int type.", offsetof(test_struct, int_opt), + * AV_OPT_TYPE_INT, { -1 }, INT_MIN, INT_MAX }, + * { "test_str", "This is a test option of string type.", offsetof(test_struct, str_opt), + * AV_OPT_TYPE_STRING }, + * { "test_bin", "This is a test option of binary type.", offsetof(test_struct, bin_opt), + * AV_OPT_TYPE_BINARY }, + * { NULL }, + * }; + * + * static const AVClass test_class = { + * .class_name = "test class", + * .item_name = av_default_item_name, + * .option = options, + * .version = LIBAVUTIL_VERSION_INT, + * }; + * @endcode + * + * Next, when allocating your struct, you must ensure that the AVClass pointer + * is set to the correct value. Then, av_opt_set_defaults() must be called to + * initialize defaults. After that the struct is ready to be used with the + * AVOptions API. + * + * When cleaning up, you may use the av_opt_free() function to automatically + * free all the allocated string and binary options. + * + * Continuing with the above example: + * + * @code + * test_struct *alloc_test_struct(void) + * { + * test_struct *ret = av_malloc(sizeof(*ret)); + * ret->class = &test_class; + * av_opt_set_defaults(ret); + * return ret; + * } + * void free_test_struct(test_struct **foo) + * { + * av_opt_free(*foo); + * av_freep(foo); + * } + * @endcode + * + * @subsection avoptions_implement_nesting Nesting + * It may happen that an AVOptions-enabled struct contains another + * AVOptions-enabled struct as a member (e.g. AVCodecContext in + * libavcodec exports generic options, while its priv_data field exports + * codec-specific options). In such a case, it is possible to set up the + * parent struct to export a child's options. To do that, simply + * implement AVClass.child_next() and AVClass.child_class_next() in the + * parent struct's AVClass. + * Assuming that the test_struct from above now also contains a + * child_struct field: + * + * @code + * typedef struct child_struct { + * AVClass *class; + * int flags_opt; + * } child_struct; + * static const AVOption child_opts[] = { + * { "test_flags", "This is a test option of flags type.", + * offsetof(child_struct, flags_opt), AV_OPT_TYPE_FLAGS, { 0 }, INT_MIN, INT_MAX }, + * { NULL }, + * }; + * static const AVClass child_class = { + * .class_name = "child class", + * .item_name = av_default_item_name, + * .option = child_opts, + * .version = LIBAVUTIL_VERSION_INT, + * }; + * + * void *child_next(void *obj, void *prev) + * { + * test_struct *t = obj; + * if (!prev && t->child_struct) + * return t->child_struct; + * return NULL + * } + * const AVClass child_class_next(const AVClass *prev) + * { + * return prev ? NULL : &child_class; + * } + * @endcode + * Putting child_next() and child_class_next() as defined above into + * test_class will now make child_struct's options accessible through + * test_struct (again, proper setup as described above needs to be done on + * child_struct right after it is created). + * + * From the above example it might not be clear why both child_next() + * and child_class_next() are needed. The distinction is that child_next() + * iterates over actually existing objects, while child_class_next() + * iterates over all possible child classes. E.g. if an AVCodecContext + * was initialized to use a codec which has private options, then its + * child_next() will return AVCodecContext.priv_data and finish + * iterating. OTOH child_class_next() on AVCodecContext.av_class will + * iterate over all available codecs with private options. + * + * @subsection avoptions_implement_named_constants Named constants + * It is possible to create named constants for options. Simply set the unit + * field of the option the constants should apply to to a string and + * create the constants themselves as options of type AV_OPT_TYPE_CONST + * with their unit field set to the same string. + * Their default_val field should contain the value of the named + * constant. + * For example, to add some named constants for the test_flags option + * above, put the following into the child_opts array: + * @code + * { "test_flags", "This is a test option of flags type.", + * offsetof(child_struct, flags_opt), AV_OPT_TYPE_FLAGS, { 0 }, INT_MIN, INT_MAX, "test_unit" }, + * { "flag1", "This is a flag with value 16", 0, AV_OPT_TYPE_CONST, { 16 }, 0, 0, "test_unit" }, + * @endcode + * + * @section avoptions_use Using AVOptions + * This section deals with accessing options in an AVOptions-enabled struct. + * Such structs in Libav are e.g. AVCodecContext in libavcodec or + * AVFormatContext in libavformat. + * + * @subsection avoptions_use_examine Examining AVOptions + * The basic functions for examining options are av_opt_next(), which iterates + * over all options defined for one object, and av_opt_find(), which searches + * for an option with the given name. + * + * The situation is more complicated with nesting. An AVOptions-enabled struct + * may have AVOptions-enabled children. Passing the AV_OPT_SEARCH_CHILDREN flag + * to av_opt_find() will make the function search children recursively. + * + * For enumerating there are basically two cases. The first is when you want to + * get all options that may potentially exist on the struct and its children + * (e.g. when constructing documentation). In that case you should call + * av_opt_child_class_next() recursively on the parent struct's AVClass. The + * second case is when you have an already initialized struct with all its + * children and you want to get all options that can be actually written or read + * from it. In that case you should call av_opt_child_next() recursively (and + * av_opt_next() on each result). + * + * @subsection avoptions_use_get_set Reading and writing AVOptions + * When setting options, you often have a string read directly from the + * user. In such a case, simply passing it to av_opt_set() is enough. For + * non-string type options, av_opt_set() will parse the string according to the + * option type. + * + * Similarly av_opt_get() will read any option type and convert it to a string + * which will be returned. Do not forget that the string is allocated, so you + * have to free it with av_free(). + * + * In some cases it may be more convenient to put all options into an + * AVDictionary and call av_opt_set_dict() on it. A specific case of this + * are the format/codec open functions in lavf/lavc which take a dictionary + * filled with option as a parameter. This allows to set some options + * that cannot be set otherwise, since e.g. the input file format is not known + * before the file is actually opened. + * @} + */ + +enum AVOptionType{ + AV_OPT_TYPE_FLAGS, + AV_OPT_TYPE_INT, + AV_OPT_TYPE_INT64, + AV_OPT_TYPE_DOUBLE, + AV_OPT_TYPE_FLOAT, + AV_OPT_TYPE_STRING, + AV_OPT_TYPE_RATIONAL, + AV_OPT_TYPE_BINARY, ///< offset must point to a pointer immediately followed by an int for the length + AV_OPT_TYPE_CONST = 128, +#if FF_API_OLD_AVOPTIONS + FF_OPT_TYPE_FLAGS = 0, + FF_OPT_TYPE_INT, + FF_OPT_TYPE_INT64, + FF_OPT_TYPE_DOUBLE, + FF_OPT_TYPE_FLOAT, + FF_OPT_TYPE_STRING, + FF_OPT_TYPE_RATIONAL, + FF_OPT_TYPE_BINARY, ///< offset must point to a pointer immediately followed by an int for the length + FF_OPT_TYPE_CONST=128, +#endif +}; + +/** + * AVOption + */ +typedef struct AVOption { + const char *name; + + /** + * short English help text + * @todo What about other languages? + */ + const char *help; + + /** + * The offset relative to the context structure where the option + * value is stored. It should be 0 for named constants. + */ + int offset; + enum AVOptionType type; + + /** + * the default value for scalar options + */ + union { + double dbl; + const char *str; + /* TODO those are unused now */ + int64_t i64; + AVRational q; + } default_val; + double min; ///< minimum valid value for the option + double max; ///< maximum valid value for the option + + int flags; +#define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding +#define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding +#define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ... +#define AV_OPT_FLAG_AUDIO_PARAM 8 +#define AV_OPT_FLAG_VIDEO_PARAM 16 +#define AV_OPT_FLAG_SUBTITLE_PARAM 32 +//FIXME think about enc-audio, ... style flags + + /** + * The logical unit to which the option belongs. Non-constant + * options and corresponding named constants share the same + * unit. May be NULL. + */ + const char *unit; +} AVOption; + +#if FF_API_FIND_OPT +/** + * Look for an option in obj. Look only for the options which + * have the flags set as specified in mask and flags (that is, + * for which it is the case that opt->flags & mask == flags). + * + * @param[in] obj a pointer to a struct whose first element is a + * pointer to an AVClass + * @param[in] name the name of the option to look for + * @param[in] unit the unit of the option to look for, or any if NULL + * @return a pointer to the option found, or NULL if no option + * has been found + * + * @deprecated use av_opt_find. + */ +attribute_deprecated +const AVOption *av_find_opt(void *obj, const char *name, const char *unit, int mask, int flags); +#endif + +#if FF_API_OLD_AVOPTIONS +/** + * Set the field of obj with the given name to value. + * + * @param[in] obj A struct whose first element is a pointer to an + * AVClass. + * @param[in] name the name of the field to set + * @param[in] val The value to set. If the field is not of a string + * type, then the given string is parsed. + * SI postfixes and some named scalars are supported. + * If the field is of a numeric type, it has to be a numeric or named + * scalar. Behavior with more than one scalar and +- infix operators + * is undefined. + * If the field is of a flags type, it has to be a sequence of numeric + * scalars or named flags separated by '+' or '-'. Prefixing a flag + * with '+' causes it to be set without affecting the other flags; + * similarly, '-' unsets a flag. + * @param[out] o_out if non-NULL put here a pointer to the AVOption + * found + * @param alloc this parameter is currently ignored + * @return 0 if the value has been set, or an AVERROR code in case of + * error: + * AVERROR_OPTION_NOT_FOUND if no matching option exists + * AVERROR(ERANGE) if the value is out of range + * AVERROR(EINVAL) if the value is not valid + * @deprecated use av_opt_set() + */ +attribute_deprecated +int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out); + +attribute_deprecated const AVOption *av_set_double(void *obj, const char *name, double n); +attribute_deprecated const AVOption *av_set_q(void *obj, const char *name, AVRational n); +attribute_deprecated const AVOption *av_set_int(void *obj, const char *name, int64_t n); + +double av_get_double(void *obj, const char *name, const AVOption **o_out); +AVRational av_get_q(void *obj, const char *name, const AVOption **o_out); +int64_t av_get_int(void *obj, const char *name, const AVOption **o_out); +attribute_deprecated const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len); +attribute_deprecated const AVOption *av_next_option(void *obj, const AVOption *last); +#endif + +/** + * Show the obj options. + * + * @param req_flags requested flags for the options to show. Show only the + * options for which it is opt->flags & req_flags. + * @param rej_flags rejected flags for the options to show. Show only the + * options for which it is !(opt->flags & req_flags). + * @param av_log_obj log context to use for showing the options + */ +int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags); + +/** + * Set the values of all AVOption fields to their default values. + * + * @param s an AVOption-enabled struct (its first member must be a pointer to AVClass) + */ +void av_opt_set_defaults(void *s); + +#if FF_API_OLD_AVOPTIONS +attribute_deprecated +void av_opt_set_defaults2(void *s, int mask, int flags); +#endif + +/** + * Parse the key/value pairs list in opts. For each key/value pair + * found, stores the value in the field in ctx that is named like the + * key. ctx must be an AVClass context, storing is done using + * AVOptions. + * + * @param opts options string to parse, may be NULL + * @param key_val_sep a 0-terminated list of characters used to + * separate key from value + * @param pairs_sep a 0-terminated list of characters used to separate + * two pairs from each other + * @return the number of successfully set key/value pairs, or a negative + * value corresponding to an AVERROR code in case of error: + * AVERROR(EINVAL) if opts cannot be parsed, + * the error code issued by av_set_string3() if a key/value pair + * cannot be set + */ +int av_set_options_string(void *ctx, const char *opts, + const char *key_val_sep, const char *pairs_sep); + +/** + * Free all string and binary options in obj. + */ +void av_opt_free(void *obj); + +/** + * Check whether a particular flag is set in a flags field. + * + * @param field_name the name of the flag field option + * @param flag_name the name of the flag to check + * @return non-zero if the flag is set, zero if the flag isn't set, + * isn't of the right type, or the flags field doesn't exist. + */ +int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name); + +/* + * Set all the options from a given dictionary on an object. + * + * @param obj a struct whose first element is a pointer to AVClass + * @param options options to process. This dictionary will be freed and replaced + * by a new one containing all options not found in obj. + * Of course this new dictionary needs to be freed by caller + * with av_dict_free(). + * + * @return 0 on success, a negative AVERROR if some option was found in obj, + * but could not be set. + * + * @see av_dict_copy() + */ +int av_opt_set_dict(void *obj, struct AVDictionary **options); + +/** + * @defgroup opt_eval_funcs Evaluating option strings + * @{ + * This group of functions can be used to evaluate option strings + * and get numbers out of them. They do the same thing as av_opt_set(), + * except the result is written into the caller-supplied pointer. + * + * @param obj a struct whose first element is a pointer to AVClass. + * @param o an option for which the string is to be evaluated. + * @param val string to be evaluated. + * @param *_out value of the string will be written here. + * + * @return 0 on success, a negative number on failure. + */ +int av_opt_eval_flags (void *obj, const AVOption *o, const char *val, int *flags_out); +int av_opt_eval_int (void *obj, const AVOption *o, const char *val, int *int_out); +int av_opt_eval_int64 (void *obj, const AVOption *o, const char *val, int64_t *int64_out); +int av_opt_eval_float (void *obj, const AVOption *o, const char *val, float *float_out); +int av_opt_eval_double(void *obj, const AVOption *o, const char *val, double *double_out); +int av_opt_eval_q (void *obj, const AVOption *o, const char *val, AVRational *q_out); +/** + * @} + */ + +#define AV_OPT_SEARCH_CHILDREN 0x0001 /**< Search in possible children of the + given object first. */ +/** + * The obj passed to av_opt_find() is fake -- only a double pointer to AVClass + * instead of a required pointer to a struct containing AVClass. This is + * useful for searching for options without needing to allocate the corresponding + * object. + */ +#define AV_OPT_SEARCH_FAKE_OBJ 0x0002 + +/** + * Look for an option in an object. Consider only options which + * have all the specified flags set. + * + * @param[in] obj A pointer to a struct whose first element is a + * pointer to an AVClass. + * Alternatively a double pointer to an AVClass, if + * AV_OPT_SEARCH_FAKE_OBJ search flag is set. + * @param[in] name The name of the option to look for. + * @param[in] unit When searching for named constants, name of the unit + * it belongs to. + * @param opt_flags Find only options with all the specified flags set (AV_OPT_FLAG). + * @param search_flags A combination of AV_OPT_SEARCH_*. + * + * @return A pointer to the option found, or NULL if no option + * was found. + * + * @note Options found with AV_OPT_SEARCH_CHILDREN flag may not be settable + * directly with av_set_string3(). Use special calls which take an options + * AVDictionary (e.g. avformat_open_input()) to set options found with this + * flag. + */ +const AVOption *av_opt_find(void *obj, const char *name, const char *unit, + int opt_flags, int search_flags); + +/** + * Look for an option in an object. Consider only options which + * have all the specified flags set. + * + * @param[in] obj A pointer to a struct whose first element is a + * pointer to an AVClass. + * Alternatively a double pointer to an AVClass, if + * AV_OPT_SEARCH_FAKE_OBJ search flag is set. + * @param[in] name The name of the option to look for. + * @param[in] unit When searching for named constants, name of the unit + * it belongs to. + * @param opt_flags Find only options with all the specified flags set (AV_OPT_FLAG). + * @param search_flags A combination of AV_OPT_SEARCH_*. + * @param[out] target_obj if non-NULL, an object to which the option belongs will be + * written here. It may be different from obj if AV_OPT_SEARCH_CHILDREN is present + * in search_flags. This parameter is ignored if search_flags contain + * AV_OPT_SEARCH_FAKE_OBJ. + * + * @return A pointer to the option found, or NULL if no option + * was found. + */ +const AVOption *av_opt_find2(void *obj, const char *name, const char *unit, + int opt_flags, int search_flags, void **target_obj); + +/** + * Iterate over all AVOptions belonging to obj. + * + * @param obj an AVOptions-enabled struct or a double pointer to an + * AVClass describing it. + * @param prev result of the previous call to av_opt_next() on this object + * or NULL + * @return next AVOption or NULL + */ +const AVOption *av_opt_next(void *obj, const AVOption *prev); + +/** + * Iterate over AVOptions-enabled children of obj. + * + * @param prev result of a previous call to this function or NULL + * @return next AVOptions-enabled child or NULL + */ +void *av_opt_child_next(void *obj, void *prev); + +/** + * Iterate over potential AVOptions-enabled children of parent. + * + * @param prev result of a previous call to this function or NULL + * @return AVClass corresponding to next potential child or NULL + */ +const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev); + +/** + * @defgroup opt_set_funcs Option setting functions + * @{ + * Those functions set the field of obj with the given name to value. + * + * @param[in] obj A struct whose first element is a pointer to an AVClass. + * @param[in] name the name of the field to set + * @param[in] val The value to set. In case of av_opt_set() if the field is not + * of a string type, then the given string is parsed. + * SI postfixes and some named scalars are supported. + * If the field is of a numeric type, it has to be a numeric or named + * scalar. Behavior with more than one scalar and +- infix operators + * is undefined. + * If the field is of a flags type, it has to be a sequence of numeric + * scalars or named flags separated by '+' or '-'. Prefixing a flag + * with '+' causes it to be set without affecting the other flags; + * similarly, '-' unsets a flag. + * @param search_flags flags passed to av_opt_find2. I.e. if AV_OPT_SEARCH_CHILDREN + * is passed here, then the option may be set on a child of obj. + * + * @return 0 if the value has been set, or an AVERROR code in case of + * error: + * AVERROR_OPTION_NOT_FOUND if no matching option exists + * AVERROR(ERANGE) if the value is out of range + * AVERROR(EINVAL) if the value is not valid + */ +int av_opt_set (void *obj, const char *name, const char *val, int search_flags); +int av_opt_set_int (void *obj, const char *name, int64_t val, int search_flags); +int av_opt_set_double(void *obj, const char *name, double val, int search_flags); +int av_opt_set_q (void *obj, const char *name, AVRational val, int search_flags); +/** + * @} + */ + +/** + * @defgroup opt_get_funcs Option getting functions + * @{ + * Those functions get a value of the option with the given name from an object. + * + * @param[in] obj a struct whose first element is a pointer to an AVClass. + * @param[in] name name of the option to get. + * @param[in] search_flags flags passed to av_opt_find2. I.e. if AV_OPT_SEARCH_CHILDREN + * is passed here, then the option may be found in a child of obj. + * @param[out] out_val value of the option will be written here + * @return 0 on success, a negative error code otherwise + */ +/** + * @note the returned string will av_malloc()ed and must be av_free()ed by the caller + */ +int av_opt_get (void *obj, const char *name, int search_flags, uint8_t **out_val); +int av_opt_get_int (void *obj, const char *name, int search_flags, int64_t *out_val); +int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val); +int av_opt_get_q (void *obj, const char *name, int search_flags, AVRational *out_val); +/** + * @} + */ + +#endif /* AVUTIL_OPT_H */ diff --git a/ffmpeg 0.8/include/libavutil/parseutils.h b/ffmpeg 0.8/include/libavutil/parseutils.h new file mode 100644 index 000000000..353e9a710 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/parseutils.h @@ -0,0 +1,124 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_PARSEUTILS_H +#define AVUTIL_PARSEUTILS_H + +#include + +#include "rational.h" + +/** + * @file + * misc parsing utilities + */ + +/** + * Parse str and put in width_ptr and height_ptr the detected values. + * + * @param[in,out] width_ptr pointer to the variable which will contain the detected + * width value + * @param[in,out] height_ptr pointer to the variable which will contain the detected + * height value + * @param[in] str the string to parse: it has to be a string in the format + * width x height or a valid video size abbreviation. + * @return >= 0 on success, a negative error code otherwise + */ +int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str); + +/** + * Parse str and store the detected values in *rate. + * + * @param[in,out] rate pointer to the AVRational which will contain the detected + * frame rate + * @param[in] str the string to parse: it has to be a string in the format + * rate_num / rate_den, a float number or a valid video rate abbreviation + * @return >= 0 on success, a negative error code otherwise + */ +int av_parse_video_rate(AVRational *rate, const char *str); + +/** + * Put the RGBA values that correspond to color_string in rgba_color. + * + * @param color_string a string specifying a color. It can be the name of + * a color (case insensitive match) or a [0x|#]RRGGBB[AA] sequence, + * possibly followed by "@" and a string representing the alpha + * component. + * The alpha component may be a string composed by "0x" followed by an + * hexadecimal number or a decimal number between 0.0 and 1.0, which + * represents the opacity value (0x00/0.0 means completely transparent, + * 0xff/1.0 completely opaque). + * If the alpha component is not specified then 0xff is assumed. + * The string "random" will result in a random color. + * @param slen length of the initial part of color_string containing the + * color. It can be set to -1 if color_string is a null terminated string + * containing nothing else than the color. + * @return >= 0 in case of success, a negative value in case of + * failure (for example if color_string cannot be parsed). + */ +int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen, + void *log_ctx); + +/** + * Parses timestr and returns in *time a corresponding number of + * microseconds. + * + * @param timeval puts here the number of microseconds corresponding + * to the string in timestr. If the string represents a duration, it + * is the number of microseconds contained in the time interval. If + * the string is a date, is the number of microseconds since 1st of + * January, 1970 up to the time of the parsed date. If timestr cannot + * be successfully parsed, set *time to INT64_MIN. + + * @param timestr a string representing a date or a duration. + * - If a date the syntax is: + * @code + * [{YYYY-MM-DD|YYYYMMDD}[T|t| ]]{{HH[:MM[:SS[.m...]]]}|{HH[MM[SS[.m...]]]}}[Z] + * now + * @endcode + * If the value is "now" it takes the current time. + * Time is local time unless Z is appended, in which case it is + * interpreted as UTC. + * If the year-month-day part is not specified it takes the current + * year-month-day. + * - If a duration the syntax is: + * @code + * [-]HH[:MM[:SS[.m...]]] + * [-]S+[.m...] + * @endcode + * @param duration flag which tells how to interpret timestr, if not + * zero timestr is interpreted as a duration, otherwise as a date + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code otherwise + */ +int av_parse_time(int64_t *timeval, const char *timestr, int duration); + +/** + * Attempt to find a specific tag in a URL. + * + * syntax: '?tag1=val1&tag2=val2...'. Little URL decoding is done. + * Return 1 if found. + */ +int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info); + +/** + * Convert the decomposed UTC time in tm to a time_t value. + */ +time_t av_timegm(struct tm *tm); + +#endif /* AVUTIL_PARSEUTILS_H */ diff --git a/ffmpeg 0.8/include/libavutil/pixdesc.h b/ffmpeg 0.8/include/libavutil/pixdesc.h new file mode 100644 index 000000000..f0de9981e --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/pixdesc.h @@ -0,0 +1,175 @@ +/* + * pixel format descriptor + * Copyright (c) 2009 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_PIXDESC_H +#define AVUTIL_PIXDESC_H + +#include +#include "pixfmt.h" + +typedef struct AVComponentDescriptor{ + uint16_t plane :2; ///< which of the 4 planes contains the component + + /** + * Number of elements between 2 horizontally consecutive pixels minus 1. + * Elements are bits for bitstream formats, bytes otherwise. + */ + uint16_t step_minus1 :3; + + /** + * Number of elements before the component of the first pixel plus 1. + * Elements are bits for bitstream formats, bytes otherwise. + */ + uint16_t offset_plus1 :3; + uint16_t shift :3; ///< number of least significant bits that must be shifted away to get the value + uint16_t depth_minus1 :4; ///< number of bits in the component minus 1 +}AVComponentDescriptor; + +/** + * Descriptor that unambiguously describes how the bits of a pixel are + * stored in the up to 4 data planes of an image. It also stores the + * subsampling factors and number of components. + * + * @note This is separate of the colorspace (RGB, YCbCr, YPbPr, JPEG-style YUV + * and all the YUV variants) AVPixFmtDescriptor just stores how values + * are stored not what these values represent. + */ +typedef struct AVPixFmtDescriptor{ + const char *name; + uint8_t nb_components; ///< The number of components each pixel has, (1-4) + + /** + * Amount to shift the luma width right to find the chroma width. + * For YV12 this is 1 for example. + * chroma_width = -((-luma_width) >> log2_chroma_w) + * The note above is needed to ensure rounding up. + * This value only refers to the chroma components. + */ + uint8_t log2_chroma_w; ///< chroma_width = -((-luma_width )>>log2_chroma_w) + + /** + * Amount to shift the luma height right to find the chroma height. + * For YV12 this is 1 for example. + * chroma_height= -((-luma_height) >> log2_chroma_h) + * The note above is needed to ensure rounding up. + * This value only refers to the chroma components. + */ + uint8_t log2_chroma_h; + uint8_t flags; + + /** + * Parameters that describe how pixels are packed. If the format + * has chroma components, they must be stored in comp[1] and + * comp[2]. + */ + AVComponentDescriptor comp[4]; +}AVPixFmtDescriptor; + +#define PIX_FMT_BE 1 ///< Pixel format is big-endian. +#define PIX_FMT_PAL 2 ///< Pixel format has a palette in data[1], values are indexes in this palette. +#define PIX_FMT_BITSTREAM 4 ///< All values of a component are bit-wise packed end to end. +#define PIX_FMT_HWACCEL 8 ///< Pixel format is an HW accelerated format. + +/** + * The array of all the pixel format descriptors. + */ +extern const AVPixFmtDescriptor av_pix_fmt_descriptors[]; + +/** + * Read a line from an image, and write the values of the + * pixel format component c to dst. + * + * @param data the array containing the pointers to the planes of the image + * @param linesize the array containing the linesizes of the image + * @param desc the pixel format descriptor for the image + * @param x the horizontal coordinate of the first pixel to read + * @param y the vertical coordinate of the first pixel to read + * @param w the width of the line to read, that is the number of + * values to write to dst + * @param read_pal_component if not zero and the format is a paletted + * format writes the values corresponding to the palette + * component c in data[1] to dst, rather than the palette indexes in + * data[0]. The behavior is undefined if the format is not paletted. + */ +void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4], + const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component); + +/** + * Write the values from src to the pixel format component c of an + * image line. + * + * @param src array containing the values to write + * @param data the array containing the pointers to the planes of the + * image to write into. It is supposed to be zeroed. + * @param linesize the array containing the linesizes of the image + * @param desc the pixel format descriptor for the image + * @param x the horizontal coordinate of the first pixel to write + * @param y the vertical coordinate of the first pixel to write + * @param w the width of the line to write, that is the number of + * values to write to the image line + */ +void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4], + const AVPixFmtDescriptor *desc, int x, int y, int c, int w); + +/** + * Return the pixel format corresponding to name. + * + * If there is no pixel format with name name, then looks for a + * pixel format with the name corresponding to the native endian + * format of name. + * For example in a little-endian system, first looks for "gray16", + * then for "gray16le". + * + * Finally if no pixel format has been found, returns PIX_FMT_NONE. + */ +enum PixelFormat av_get_pix_fmt(const char *name); + +/** + * Return the short name for a pixel format, NULL in case pix_fmt is + * unknown. + * + * @see av_get_pix_fmt(), av_get_pix_fmt_string() + */ +const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt); + +/** + * Print in buf the string corresponding to the pixel format with + * number pix_fmt, or an header if pix_fmt is negative. + * + * @param buf the buffer where to write the string + * @param buf_size the size of buf + * @param pix_fmt the number of the pixel format to print the + * corresponding info string, or a negative value to print the + * corresponding header. + */ +char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt); + +/** + * Return the number of bits per pixel used by the pixel format + * described by pixdesc. + * + * The returned number of bits refers to the number of bits actually + * used for storing the pixel information, that is padding bits are + * not counted. + */ +int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc); + +#endif /* AVUTIL_PIXDESC_H */ diff --git a/ffmpeg 0.8/include/libavutil/pixfmt.h b/ffmpeg 0.8/include/libavutil/pixfmt.h new file mode 100644 index 000000000..37b694e7b --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/pixfmt.h @@ -0,0 +1,200 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_PIXFMT_H +#define AVUTIL_PIXFMT_H + +/** + * @file + * pixel format definitions + * + * @warning This file has to be considered an internal but installed + * header, so it should not be directly included in your projects. + */ + +#include "libavutil/avconfig.h" + +/** + * Pixel format. Notes: + * + * PIX_FMT_RGB32 is handled in an endian-specific manner. An RGBA + * color is put together as: + * (A << 24) | (R << 16) | (G << 8) | B + * This is stored as BGRA on little-endian CPU architectures and ARGB on + * big-endian CPUs. + * + * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized + * image data is stored in AVFrame.data[0]. The palette is transported in + * AVFrame.data[1], is 1024 bytes long (256 4-byte entries) and is + * formatted the same as in PIX_FMT_RGB32 described above (i.e., it is + * also endian-specific). Note also that the individual RGB palette + * components stored in AVFrame.data[1] should be in the range 0..255. + * This is important as many custom PAL8 video codecs that were designed + * to run on the IBM VGA graphics adapter use 6-bit palette components. + * + * For all the 8bit per pixel formats, an RGB32 palette is in data[1] like + * for pal8. This palette is filled in automatically by the function + * allocating the picture. + * + * Note, make sure that all newly added big endian formats have pix_fmt&1==1 + * and that all newly added little endian formats have pix_fmt&1==0 + * this allows simpler detection of big vs little endian. + */ +enum PixelFormat { + PIX_FMT_NONE= -1, + PIX_FMT_YUV420P, ///< planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples) + PIX_FMT_YUYV422, ///< packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr + PIX_FMT_RGB24, ///< packed RGB 8:8:8, 24bpp, RGBRGB... + PIX_FMT_BGR24, ///< packed RGB 8:8:8, 24bpp, BGRBGR... + PIX_FMT_YUV422P, ///< planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples) + PIX_FMT_YUV444P, ///< planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples) + PIX_FMT_YUV410P, ///< planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples) + PIX_FMT_YUV411P, ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) + PIX_FMT_GRAY8, ///< Y , 8bpp + PIX_FMT_MONOWHITE, ///< Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb + PIX_FMT_MONOBLACK, ///< Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb + PIX_FMT_PAL8, ///< 8 bit with PIX_FMT_RGB32 palette + PIX_FMT_YUVJ420P, ///< planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV420P and setting color_range + PIX_FMT_YUVJ422P, ///< planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV422P and setting color_range + PIX_FMT_YUVJ444P, ///< planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV444P and setting color_range + PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing + PIX_FMT_XVMC_MPEG2_IDCT, + PIX_FMT_UYVY422, ///< packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1 + PIX_FMT_UYYVYY411, ///< packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3 + PIX_FMT_BGR8, ///< packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb) + PIX_FMT_BGR4, ///< packed RGB 1:2:1 bitstream, 4bpp, (msb)1B 2G 1R(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits + PIX_FMT_BGR4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb) + PIX_FMT_RGB8, ///< packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb) + PIX_FMT_RGB4, ///< packed RGB 1:2:1 bitstream, 4bpp, (msb)1R 2G 1B(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits + PIX_FMT_RGB4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb) + PIX_FMT_NV12, ///< planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (first byte U and the following byte V) + PIX_FMT_NV21, ///< as above, but U and V bytes are swapped + + PIX_FMT_ARGB, ///< packed ARGB 8:8:8:8, 32bpp, ARGBARGB... + PIX_FMT_RGBA, ///< packed RGBA 8:8:8:8, 32bpp, RGBARGBA... + PIX_FMT_ABGR, ///< packed ABGR 8:8:8:8, 32bpp, ABGRABGR... + PIX_FMT_BGRA, ///< packed BGRA 8:8:8:8, 32bpp, BGRABGRA... + + PIX_FMT_GRAY16BE, ///< Y , 16bpp, big-endian + PIX_FMT_GRAY16LE, ///< Y , 16bpp, little-endian + PIX_FMT_YUV440P, ///< planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples) + PIX_FMT_YUVJ440P, ///< planar YUV 4:4:0 full scale (JPEG), deprecated in favor of PIX_FMT_YUV440P and setting color_range + PIX_FMT_YUVA420P, ///< planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples) + PIX_FMT_VDPAU_H264,///< H.264 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers + PIX_FMT_VDPAU_MPEG1,///< MPEG-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers + PIX_FMT_VDPAU_MPEG2,///< MPEG-2 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers + PIX_FMT_VDPAU_WMV3,///< WMV3 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers + PIX_FMT_VDPAU_VC1, ///< VC-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers + PIX_FMT_RGB48BE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big-endian + PIX_FMT_RGB48LE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as little-endian + + PIX_FMT_RGB565BE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian + PIX_FMT_RGB565LE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian + PIX_FMT_RGB555BE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), big-endian, most significant bit to 0 + PIX_FMT_RGB555LE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), little-endian, most significant bit to 0 + + PIX_FMT_BGR565BE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian + PIX_FMT_BGR565LE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian + PIX_FMT_BGR555BE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), big-endian, most significant bit to 1 + PIX_FMT_BGR555LE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), little-endian, most significant bit to 1 + + PIX_FMT_VAAPI_MOCO, ///< HW acceleration through VA API at motion compensation entry-point, Picture.data[3] contains a vaapi_render_state struct which contains macroblocks as well as various fields extracted from headers + PIX_FMT_VAAPI_IDCT, ///< HW acceleration through VA API at IDCT entry-point, Picture.data[3] contains a vaapi_render_state struct which contains fields extracted from headers + PIX_FMT_VAAPI_VLD, ///< HW decoding through VA API, Picture.data[3] contains a vaapi_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers + + PIX_FMT_YUV420P16LE, ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian + PIX_FMT_YUV420P16BE, ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian + PIX_FMT_YUV422P16LE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian + PIX_FMT_YUV422P16BE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian + PIX_FMT_YUV444P16LE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian + PIX_FMT_YUV444P16BE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian + PIX_FMT_VDPAU_MPEG4, ///< MPEG4 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers + PIX_FMT_DXVA2_VLD, ///< HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer + + PIX_FMT_RGB444LE, ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), little-endian, most significant bits to 0 + PIX_FMT_RGB444BE, ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), big-endian, most significant bits to 0 + PIX_FMT_BGR444LE, ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), little-endian, most significant bits to 1 + PIX_FMT_BGR444BE, ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), big-endian, most significant bits to 1 + PIX_FMT_GRAY8A, ///< 8bit gray, 8bit alpha + PIX_FMT_BGR48BE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as big-endian + PIX_FMT_BGR48LE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as little-endian + + //the following 10 formats have the disadvantage of needing 1 format for each bit depth, thus + //If you want to support multiple bit depths, then using PIX_FMT_YUV420P16* with the bpp stored seperately + //is better + PIX_FMT_YUV420P9BE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian + PIX_FMT_YUV420P9LE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian + PIX_FMT_YUV420P10BE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian + PIX_FMT_YUV420P10LE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian + PIX_FMT_YUV422P10BE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian + PIX_FMT_YUV422P10LE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian + PIX_FMT_YUV444P9BE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian + PIX_FMT_YUV444P9LE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian + PIX_FMT_YUV444P10BE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian + PIX_FMT_YUV444P10LE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian + PIX_FMT_YUV422P9BE, ///< planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian + PIX_FMT_YUV422P9LE, ///< planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian + PIX_FMT_VDA_VLD, ///< hardware decoding through VDA + + PIX_FMT_RGBA64BE, ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian + PIX_FMT_RGBA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian + PIX_FMT_BGRA64BE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian + PIX_FMT_BGRA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian + PIX_FMT_GBR24P, ///< planar GBR, 24bpp, 8G, 8B, 8R. + + PIX_FMT_NB, ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions +}; + +#define PIX_FMT_Y400A PIX_FMT_GRAY8A + +#if AV_HAVE_BIGENDIAN +# define PIX_FMT_NE(be, le) PIX_FMT_##be +#else +# define PIX_FMT_NE(be, le) PIX_FMT_##le +#endif + +#define PIX_FMT_RGB32 PIX_FMT_NE(ARGB, BGRA) +#define PIX_FMT_RGB32_1 PIX_FMT_NE(RGBA, ABGR) +#define PIX_FMT_BGR32 PIX_FMT_NE(ABGR, RGBA) +#define PIX_FMT_BGR32_1 PIX_FMT_NE(BGRA, ARGB) + +#define PIX_FMT_GRAY16 PIX_FMT_NE(GRAY16BE, GRAY16LE) +#define PIX_FMT_RGB48 PIX_FMT_NE(RGB48BE, RGB48LE) +#define PIX_FMT_RGB565 PIX_FMT_NE(RGB565BE, RGB565LE) +#define PIX_FMT_RGB555 PIX_FMT_NE(RGB555BE, RGB555LE) +#define PIX_FMT_RGB444 PIX_FMT_NE(RGB444BE, RGB444LE) +#define PIX_FMT_BGR48 PIX_FMT_NE(BGR48BE, BGR48LE) +#define PIX_FMT_BGR565 PIX_FMT_NE(BGR565BE, BGR565LE) +#define PIX_FMT_BGR555 PIX_FMT_NE(BGR555BE, BGR555LE) +#define PIX_FMT_BGR444 PIX_FMT_NE(BGR444BE, BGR444LE) + +#define PIX_FMT_YUV420P9 PIX_FMT_NE(YUV420P9BE , YUV420P9LE) +#define PIX_FMT_YUV422P9 PIX_FMT_NE(YUV422P9BE , YUV422P9LE) +#define PIX_FMT_YUV444P9 PIX_FMT_NE(YUV444P9BE , YUV444P9LE) +#define PIX_FMT_YUV420P10 PIX_FMT_NE(YUV420P10BE, YUV420P10LE) +#define PIX_FMT_YUV422P10 PIX_FMT_NE(YUV422P10BE, YUV422P10LE) +#define PIX_FMT_YUV444P10 PIX_FMT_NE(YUV444P10BE, YUV444P10LE) +#define PIX_FMT_YUV420P16 PIX_FMT_NE(YUV420P16BE, YUV420P16LE) +#define PIX_FMT_YUV422P16 PIX_FMT_NE(YUV422P16BE, YUV422P16LE) +#define PIX_FMT_YUV444P16 PIX_FMT_NE(YUV444P16BE, YUV444P16LE) + +#define PIX_FMT_RGBA64 PIX_FMT_NE(RGBA64BE, RGBA64LE) +#define PIX_FMT_BGRA64 PIX_FMT_NE(BGRA64BE, BGRA64LE) +#endif /* AVUTIL_PIXFMT_H */ diff --git a/ffmpeg 0.8/include/libavutil/random_seed.h b/ffmpeg 0.8/include/libavutil/random_seed.h new file mode 100644 index 000000000..bb957879b --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/random_seed.h @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2009 Baptiste Coudurier + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_RANDOM_SEED_H +#define AVUTIL_RANDOM_SEED_H + +#include + +/** + * Get a seed to use in conjunction with random functions. + * This function tries to provide a good seed at a best effort bases. + * Its possible to call this function multiple times if more bits are needed. + * It can be quite slow, which is why it should only be used as seed for a faster + * PRNG. The quality of the seed depends on the platform. + */ +uint32_t av_get_random_seed(void); + +#endif /* AVUTIL_RANDOM_SEED_H */ diff --git a/ffmpeg 0.8/include/libavutil/rational.h b/ffmpeg 0.8/include/libavutil/rational.h new file mode 100644 index 000000000..789e4aca2 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/rational.h @@ -0,0 +1,135 @@ +/* + * rational numbers + * Copyright (c) 2003 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * rational numbers + * @author Michael Niedermayer + */ + +#ifndef AVUTIL_RATIONAL_H +#define AVUTIL_RATIONAL_H + +#include +#include +#include "attributes.h" + +/** + * rational number numerator/denominator + */ +typedef struct AVRational{ + int num; ///< numerator + int den; ///< denominator +} AVRational; + +/** + * Compare two rationals. + * @param a first rational + * @param b second rational + * @return 0 if a==b, 1 if a>b, -1 if a>63)|1; + else if(b.den && a.den) return 0; + else if(a.num && b.num) return (a.num>>31) - (b.num>>31); + else return INT_MIN; +} + +/** + * Convert rational to double. + * @param a rational to convert + * @return (double) a + */ +static inline double av_q2d(AVRational a){ + return a.num / (double) a.den; +} + +/** + * Reduce a fraction. + * This is useful for framerate calculations. + * @param dst_num destination numerator + * @param dst_den destination denominator + * @param num source numerator + * @param den source denominator + * @param max the maximum allowed for dst_num & dst_den + * @return 1 if exact, 0 otherwise + */ +int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max); + +/** + * Multiply two rationals. + * @param b first rational + * @param c second rational + * @return b*c + */ +AVRational av_mul_q(AVRational b, AVRational c) av_const; + +/** + * Divide one rational by another. + * @param b first rational + * @param c second rational + * @return b/c + */ +AVRational av_div_q(AVRational b, AVRational c) av_const; + +/** + * Add two rationals. + * @param b first rational + * @param c second rational + * @return b+c + */ +AVRational av_add_q(AVRational b, AVRational c) av_const; + +/** + * Subtract one rational from another. + * @param b first rational + * @param c second rational + * @return b-c + */ +AVRational av_sub_q(AVRational b, AVRational c) av_const; + +/** + * Convert a double precision floating point number to a rational. + * inf is expressed as {1,0} or {-1,0} depending on the sign. + * + * @param d double to convert + * @param max the maximum allowed numerator and denominator + * @return (AVRational) d + */ +AVRational av_d2q(double d, int max) av_const; + +/** + * @return 1 if q1 is nearer to q than q2, -1 if q2 is nearer + * than q1, 0 if they have the same distance. + */ +int av_nearer_q(AVRational q, AVRational q1, AVRational q2); + +/** + * Find the nearest value in q_list to q. + * @param q_list an array of rationals terminated by {0, 0} + * @return the index of the nearest value found in the array + */ +int av_find_nearest_q_idx(AVRational q, const AVRational* q_list); + +#endif /* AVUTIL_RATIONAL_H */ diff --git a/ffmpeg 0.8/include/libavutil/samplefmt.h b/ffmpeg 0.8/include/libavutil/samplefmt.h new file mode 100644 index 000000000..b06755d2c --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/samplefmt.h @@ -0,0 +1,125 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_SAMPLEFMT_H +#define AVUTIL_SAMPLEFMT_H + +#include "avutil.h" + +/** + * all in native-endian format + */ +enum AVSampleFormat { + AV_SAMPLE_FMT_NONE = -1, + AV_SAMPLE_FMT_U8, ///< unsigned 8 bits + AV_SAMPLE_FMT_S16, ///< signed 16 bits + AV_SAMPLE_FMT_S32, ///< signed 32 bits + AV_SAMPLE_FMT_FLT, ///< float + AV_SAMPLE_FMT_DBL, ///< double + AV_SAMPLE_FMT_NB ///< Number of sample formats. DO NOT USE if linking dynamically +}; + +/** + * Return the name of sample_fmt, or NULL if sample_fmt is not + * recognized. + */ +const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt); + +/** + * Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE + * on error. + */ +enum AVSampleFormat av_get_sample_fmt(const char *name); + +/** + * Generate a string corresponding to the sample format with + * sample_fmt, or a header if sample_fmt is negative. + * + * @param buf the buffer where to write the string + * @param buf_size the size of buf + * @param sample_fmt the number of the sample format to print the + * corresponding info string, or a negative value to print the + * corresponding header. + * @return the pointer to the filled buffer or NULL if sample_fmt is + * unknown or in case of other errors + */ +char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt); + +#if FF_API_GET_BITS_PER_SAMPLE_FMT +/** + * @deprecated Use av_get_bytes_per_sample() instead. + */ +attribute_deprecated +int av_get_bits_per_sample_fmt(enum AVSampleFormat sample_fmt); +#endif + +/** + * Return number of bytes per sample. + * + * @param sample_fmt the sample format + * @return number of bytes per sample or zero if unknown for the given + * sample format + */ +int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt); + +/** + * Fill channel data pointers and linesizes for samples with sample + * format sample_fmt. + * + * The pointers array is filled with the pointers to the samples data: + * for planar, set the start point of each plane's data within the buffer, + * for packed, set the start point of the entire buffer only. + * + * The linesize array is filled with the aligned size of each samples + * plane, that is linesize[i] will contain the linesize of the plane i, + * and will be zero for all the unused planes. All linesize values are + * equal. + * + * @param pointers array to be filled with the pointer for each plane, may be NULL + * @param linesizes array to be filled with the linesize, may be NULL + * @param buf the pointer to a buffer containing the samples + * @param nb_samples the number of samples in a single channel + * @param planar 1 if the samples layout is planar, 0 if it is packed + * @param nb_channels the number of channels + * @return the total size of the buffer, a negative + * error code in case of failure + */ +int av_samples_fill_arrays(uint8_t *pointers[8], int linesizes[8], + uint8_t *buf, int nb_channels, int nb_samples, + enum AVSampleFormat sample_fmt, int planar, int align); + +/** + * Allocate a samples buffer for nb_samples samples, and + * fill pointers and linesizes accordingly. + * The allocated samples buffer has to be freed by using + * av_freep(&pointers[0]). + * + * @param nb_channels number of audio channels + * @param nb_samples number of samples per channel + * @param planar 1 if the samples layout is planar, 0 if packed, + * @param align the value to use for buffer size alignment + * @return the size in bytes required for the samples buffer, a negative + * error code in case of failure + * @see av_samples_fill_arrays() + */ +int av_samples_alloc(uint8_t *pointers[8], int linesizes[8], + int nb_channels, int nb_samples, + enum AVSampleFormat sample_fmt, int planar, + int align); + +#endif /* AVCORE_SAMPLEFMT_H */ diff --git a/ffmpeg 0.8/include/libavutil/sha.h b/ffmpeg 0.8/include/libavutil/sha.h new file mode 100644 index 000000000..543f5a194 --- /dev/null +++ b/ffmpeg 0.8/include/libavutil/sha.h @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2007 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_SHA_H +#define AVUTIL_SHA_H + +#include + +extern const int av_sha_size; + +struct AVSHA; + +/** + * Initialize SHA-1 or SHA-2 hashing. + * + * @param context pointer to the function context (of size av_sha_size) + * @param bits number of bits in digest (SHA-1 - 160 bits, SHA-2 224 or 256 bits) + * @return zero if initialization succeeded, -1 otherwise + */ +int av_sha_init(struct AVSHA* context, int bits); + +/** + * Update hash value. + * + * @param context hash function context + * @param data input data to update hash with + * @param len input data length + */ +void av_sha_update(struct AVSHA* context, const uint8_t* data, unsigned int len); + +/** + * Finish hashing and output digest value. + * + * @param context hash function context + * @param digest buffer where output digest value is stored + */ +void av_sha_final(struct AVSHA* context, uint8_t *digest); + +#endif /* AVUTIL_SHA_H */ diff --git a/ffmpeg 0.8/include/libpostproc/postprocess.h b/ffmpeg 0.8/include/libpostproc/postprocess.h new file mode 100644 index 000000000..0713c4795 --- /dev/null +++ b/ffmpeg 0.8/include/libpostproc/postprocess.h @@ -0,0 +1,109 @@ +/* + * Copyright (C) 2001-2003 Michael Niedermayer (michaelni@gmx.at) + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef POSTPROC_POSTPROCESS_H +#define POSTPROC_POSTPROCESS_H + +/** + * @file + * @brief + * external postprocessing API + */ + +#include "libavutil/avutil.h" + +#define LIBPOSTPROC_VERSION_MAJOR 51 +#define LIBPOSTPROC_VERSION_MINOR 2 +#define LIBPOSTPROC_VERSION_MICRO 0 + +#define LIBPOSTPROC_VERSION_INT AV_VERSION_INT(LIBPOSTPROC_VERSION_MAJOR, \ + LIBPOSTPROC_VERSION_MINOR, \ + LIBPOSTPROC_VERSION_MICRO) +#define LIBPOSTPROC_VERSION AV_VERSION(LIBPOSTPROC_VERSION_MAJOR, \ + LIBPOSTPROC_VERSION_MINOR, \ + LIBPOSTPROC_VERSION_MICRO) +#define LIBPOSTPROC_BUILD LIBPOSTPROC_VERSION_INT + +#define LIBPOSTPROC_IDENT "postproc" AV_STRINGIFY(LIBPOSTPROC_VERSION) + +/** + * Return the LIBPOSTPROC_VERSION_INT constant. + */ +unsigned postproc_version(void); + +/** + * Return the libpostproc build-time configuration. + */ +const char *postproc_configuration(void); + +/** + * Return the libpostproc license. + */ +const char *postproc_license(void); + +#define PP_QUALITY_MAX 6 + +#define QP_STORE_T int8_t + +#include + +typedef void pp_context; +typedef void pp_mode; + +#if LIBPOSTPROC_VERSION_INT < (52<<16) +typedef pp_context pp_context_t; +typedef pp_mode pp_mode_t; +extern const char *const pp_help; ///< a simple help text +#else +extern const char pp_help[]; ///< a simple help text +#endif + +void pp_postprocess(const uint8_t * src[3], const int srcStride[3], + uint8_t * dst[3], const int dstStride[3], + int horizontalSize, int verticalSize, + const QP_STORE_T *QP_store, int QP_stride, + pp_mode *mode, pp_context *ppContext, int pict_type); + + +/** + * returns a pp_mode or NULL if an error occurred + * name is the string after "-pp" on the command line + * quality is a number from 0 to PP_QUALITY_MAX + */ +pp_mode *pp_get_mode_by_name_and_quality(const char *name, int quality); +void pp_free_mode(pp_mode *mode); + +pp_context *pp_get_context(int width, int height, int flags); +void pp_free_context(pp_context *ppContext); + +#define PP_CPU_CAPS_MMX 0x80000000 +#define PP_CPU_CAPS_MMX2 0x20000000 +#define PP_CPU_CAPS_3DNOW 0x40000000 +#define PP_CPU_CAPS_ALTIVEC 0x10000000 + +#define PP_FORMAT 0x00000008 +#define PP_FORMAT_420 (0x00000011|PP_FORMAT) +#define PP_FORMAT_422 (0x00000001|PP_FORMAT) +#define PP_FORMAT_411 (0x00000002|PP_FORMAT) +#define PP_FORMAT_444 (0x00000000|PP_FORMAT) + +#define PP_PICT_TYPE_QP2 0x00000010 ///< MPEG2 style QScale + +#endif /* POSTPROC_POSTPROCESS_H */ diff --git a/ffmpeg 0.8/include/libswresample/swresample.h b/ffmpeg 0.8/include/libswresample/swresample.h new file mode 100644 index 000000000..d7b55a0f7 --- /dev/null +++ b/ffmpeg 0.8/include/libswresample/swresample.h @@ -0,0 +1,125 @@ +/* + * Copyright (C) 2011 Michael Niedermayer (michaelni@gmx.at) + * + * This file is part of libswresample + * + * libswresample is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * libswresample is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with libswresample; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * libswresample public header + */ + +#ifndef SWR_H +#define SWR_H + +#include +#include "libavutil/samplefmt.h" + +#define LIBSWRESAMPLE_VERSION_MAJOR 0 +#define LIBSWRESAMPLE_VERSION_MINOR 4 +#define LIBSWRESAMPLE_VERSION_MICRO 0 + +#define SWR_CH_MAX 16 ///< Maximum number of channels + +#define SWR_FLAG_RESAMPLE 1 ///< Force resampling even if equal sample rate +//TODO use int resample ? +//long term TODO can we enable this dynamically? + + +struct SwrContext; + +/** + * Allocate SwrContext. + * + * If you use this function you will need to set the parameters (manually or + * with swr_alloc_set_opts()) before calling swr_init(). + * + * @see swr_alloc_set_opts(), swr_init(), swr_free() + * @return NULL on error, allocated context otherwise + */ +struct SwrContext *swr_alloc(void); + +/** + * Initialize context after user parameters have been set. + * + * @return AVERROR error code in case of failure. + */ +int swr_init(struct SwrContext *s); + +/** + * Allocate SwrContext if needed and set/reset common parameters. + * + * This function does not require s to be allocated with swr_alloc(). On the + * other hand, swr_alloc() can use swr_alloc_set_opts() to set the parameters + * on the allocated context. + * + * @param s Swr context, can be NULL + * @param out_ch_layout output channel layout (AV_CH_LAYOUT_*) + * @param out_sample_fmt output sample format (AV_SAMPLE_FMT_*). Use +0x100 for planar audio + * @param out_sample_rate output sample rate (frequency in Hz) + * @param in_ch_layout input channel layout (AV_CH_LAYOUT_*) + * @param in_sample_fmt input sample format (AV_SAMPLE_FMT_*). Use +0x100 for planar audio + * @param in_sample_rate input sample rate (frequency in Hz) + * @param log_offset logging level offset + * @param log_ctx parent logging context, can be NULL + * + * @see swr_init(), swr_free() + * @return NULL on error, allocated context otherwise + */ +struct SwrContext *swr_alloc_set_opts(struct SwrContext *s, + int64_t out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate, + int64_t in_ch_layout, enum AVSampleFormat in_sample_fmt, int in_sample_rate, + int log_offset, void *log_ctx); + +/** + * Free the given SwrContext and set the pointer to NULL. + */ +void swr_free(struct SwrContext **s); + +/** + * Convert audio. + * + * in and in_count can be set to 0 to flush the last few samples out at the + * end. + * + * @param s allocated Swr context, with parameters set + * @param out output buffers, only the first one need be set in case of packed audio + * @param out_count amount of space available for output in samples per channel + * @param in input buffers, only the first one need to be set in case of packed audio + * @param in_count number of input samples available in one channel + * + * @return number of samples output per channel + */ +int swr_convert(struct SwrContext *s, uint8_t *out[SWR_CH_MAX], int out_count, + const uint8_t *in [SWR_CH_MAX], int in_count); + +/** + * Activate resampling compensation. + */ +void swr_compensate(struct SwrContext *s, int sample_delta, int compensation_distance); + +/** + * Set a customized input channel mapping. + * + * @param s allocated Swr context, not yet initialized + * @param channel_map customized input channel mapping (array of channel + * indexes, -1 for a muted channel) + * @return AVERROR error code in case of failure. + */ +int swr_set_channel_mapping(struct SwrContext *s, const int *channel_map); + +#endif diff --git a/ffmpeg 0.8/include/libswscale/swscale.h b/ffmpeg 0.8/include/libswscale/swscale.h new file mode 100644 index 000000000..845121a0c --- /dev/null +++ b/ffmpeg 0.8/include/libswscale/swscale.h @@ -0,0 +1,365 @@ +/* + * Copyright (C) 2001-2011 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef SWSCALE_SWSCALE_H +#define SWSCALE_SWSCALE_H + +/** + * @file + * @brief + * external api for the swscale stuff + */ + +#include "libavutil/avutil.h" +#include "libavutil/log.h" +#include "libavutil/pixfmt.h" + +#define LIBSWSCALE_VERSION_MAJOR 2 +#define LIBSWSCALE_VERSION_MINOR 1 +#define LIBSWSCALE_VERSION_MICRO 0 + +#define LIBSWSCALE_VERSION_INT AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \ + LIBSWSCALE_VERSION_MINOR, \ + LIBSWSCALE_VERSION_MICRO) +#define LIBSWSCALE_VERSION AV_VERSION(LIBSWSCALE_VERSION_MAJOR, \ + LIBSWSCALE_VERSION_MINOR, \ + LIBSWSCALE_VERSION_MICRO) +#define LIBSWSCALE_BUILD LIBSWSCALE_VERSION_INT + +#define LIBSWSCALE_IDENT "SwS" AV_STRINGIFY(LIBSWSCALE_VERSION) + +/** + * Those FF_API_* defines are not part of public API. + * They may change, break or disappear at any time. + */ +#ifndef FF_API_SWS_GETCONTEXT +#define FF_API_SWS_GETCONTEXT (LIBSWSCALE_VERSION_MAJOR < 3) +#endif +#ifndef FF_API_SWS_CPU_CAPS +#define FF_API_SWS_CPU_CAPS (LIBSWSCALE_VERSION_MAJOR < 3) +#endif +#ifndef FF_API_SWS_FORMAT_NAME +#define FF_API_SWS_FORMAT_NAME (LIBSWSCALE_VERSION_MAJOR < 3) +#endif + +/** + * Returns the LIBSWSCALE_VERSION_INT constant. + */ +unsigned swscale_version(void); + +/** + * Returns the libswscale build-time configuration. + */ +const char *swscale_configuration(void); + +/** + * Returns the libswscale license. + */ +const char *swscale_license(void); + +/* values for the flags, the stuff on the command line is different */ +#define SWS_FAST_BILINEAR 1 +#define SWS_BILINEAR 2 +#define SWS_BICUBIC 4 +#define SWS_X 8 +#define SWS_POINT 0x10 +#define SWS_AREA 0x20 +#define SWS_BICUBLIN 0x40 +#define SWS_GAUSS 0x80 +#define SWS_SINC 0x100 +#define SWS_LANCZOS 0x200 +#define SWS_SPLINE 0x400 + +#define SWS_SRC_V_CHR_DROP_MASK 0x30000 +#define SWS_SRC_V_CHR_DROP_SHIFT 16 + +#define SWS_PARAM_DEFAULT 123456 + +#define SWS_PRINT_INFO 0x1000 + +//the following 3 flags are not completely implemented +//internal chrominace subsampling info +#define SWS_FULL_CHR_H_INT 0x2000 +//input subsampling info +#define SWS_FULL_CHR_H_INP 0x4000 +#define SWS_DIRECT_BGR 0x8000 +#define SWS_ACCURATE_RND 0x40000 +#define SWS_BITEXACT 0x80000 + +#if FF_API_SWS_CPU_CAPS +/** + * CPU caps are autodetected now, those flags + * are only provided for API compatibility. + */ +#define SWS_CPU_CAPS_MMX 0x80000000 +#define SWS_CPU_CAPS_MMX2 0x20000000 +#define SWS_CPU_CAPS_3DNOW 0x40000000 +#define SWS_CPU_CAPS_ALTIVEC 0x10000000 +#define SWS_CPU_CAPS_BFIN 0x01000000 +#define SWS_CPU_CAPS_SSE2 0x02000000 +#endif + +#define SWS_MAX_REDUCE_CUTOFF 0.002 + +#define SWS_CS_ITU709 1 +#define SWS_CS_FCC 4 +#define SWS_CS_ITU601 5 +#define SWS_CS_ITU624 5 +#define SWS_CS_SMPTE170M 5 +#define SWS_CS_SMPTE240M 7 +#define SWS_CS_DEFAULT 5 + +/** + * Returns a pointer to yuv<->rgb coefficients for the given colorspace + * suitable for sws_setColorspaceDetails(). + * + * @param colorspace One of the SWS_CS_* macros. If invalid, + * SWS_CS_DEFAULT is used. + */ +const int *sws_getCoefficients(int colorspace); + + +// when used for filters they must have an odd number of elements +// coeffs cannot be shared between vectors +typedef struct { + double *coeff; ///< pointer to the list of coefficients + int length; ///< number of coefficients in the vector +} SwsVector; + +// vectors can be shared +typedef struct { + SwsVector *lumH; + SwsVector *lumV; + SwsVector *chrH; + SwsVector *chrV; +} SwsFilter; + +struct SwsContext; + +/** + * Returns a positive value if pix_fmt is a supported input format, 0 + * otherwise. + */ +int sws_isSupportedInput(enum PixelFormat pix_fmt); + +/** + * Returns a positive value if pix_fmt is a supported output format, 0 + * otherwise. + */ +int sws_isSupportedOutput(enum PixelFormat pix_fmt); + +/** + * Allocates an empty SwsContext. This must be filled and passed to + * sws_init_context(). For filling see AVOptions, options.c and + * sws_setColorspaceDetails(). + */ +struct SwsContext *sws_alloc_context(void); + +/** + * Initializes the swscaler context sws_context. + * + * @return zero or positive value on success, a negative value on + * error + */ +int sws_init_context(struct SwsContext *sws_context, SwsFilter *srcFilter, SwsFilter *dstFilter); + +/** + * Frees the swscaler context swsContext. + * If swsContext is NULL, then does nothing. + */ +void sws_freeContext(struct SwsContext *swsContext); + +#if FF_API_SWS_GETCONTEXT +/** + * Allocates and returns a SwsContext. You need it to perform + * scaling/conversion operations using sws_scale(). + * + * @param srcW the width of the source image + * @param srcH the height of the source image + * @param srcFormat the source image format + * @param dstW the width of the destination image + * @param dstH the height of the destination image + * @param dstFormat the destination image format + * @param flags specify which algorithm and options to use for rescaling + * @return a pointer to an allocated context, or NULL in case of error + * @note this function is to be removed after a saner alternative is + * written + * @deprecated Use sws_getCachedContext() instead. + */ +struct SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, + int dstW, int dstH, enum PixelFormat dstFormat, + int flags, SwsFilter *srcFilter, + SwsFilter *dstFilter, const double *param); +#endif + +/** + * Scales the image slice in srcSlice and puts the resulting scaled + * slice in the image in dst. A slice is a sequence of consecutive + * rows in an image. + * + * Slices have to be provided in sequential order, either in + * top-bottom or bottom-top order. If slices are provided in + * non-sequential order the behavior of the function is undefined. + * + * @param c the scaling context previously created with + * sws_getContext() + * @param srcSlice the array containing the pointers to the planes of + * the source slice + * @param srcStride the array containing the strides for each plane of + * the source image + * @param srcSliceY the position in the source image of the slice to + * process, that is the number (counted starting from + * zero) in the image of the first row of the slice + * @param srcSliceH the height of the source slice, that is the number + * of rows in the slice + * @param dst the array containing the pointers to the planes of + * the destination image + * @param dstStride the array containing the strides for each plane of + * the destination image + * @return the height of the output slice + */ +int sws_scale(struct SwsContext *c, const uint8_t* const srcSlice[], + const int srcStride[], int srcSliceY, int srcSliceH, + uint8_t* const dst[], const int dstStride[]); + +/** + * @param inv_table the yuv2rgb coefficients, normally ff_yuv2rgb_coeffs[x] + * @return -1 if not supported + */ +int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4], + int srcRange, const int table[4], int dstRange, + int brightness, int contrast, int saturation); + +/** + * @return -1 if not supported + */ +int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table, + int *srcRange, int **table, int *dstRange, + int *brightness, int *contrast, int *saturation); + +/** + * Allocates and returns an uninitialized vector with length coefficients. + */ +SwsVector *sws_allocVec(int length); + +/** + * Returns a normalized Gaussian curve used to filter stuff + * quality=3 is high quality, lower is lower quality. + */ +SwsVector *sws_getGaussianVec(double variance, double quality); + +/** + * Allocates and returns a vector with length coefficients, all + * with the same value c. + */ +SwsVector *sws_getConstVec(double c, int length); + +/** + * Allocates and returns a vector with just one coefficient, with + * value 1.0. + */ +SwsVector *sws_getIdentityVec(void); + +/** + * Scales all the coefficients of a by the scalar value. + */ +void sws_scaleVec(SwsVector *a, double scalar); + +/** + * Scales all the coefficients of a so that their sum equals height. + */ +void sws_normalizeVec(SwsVector *a, double height); +void sws_convVec(SwsVector *a, SwsVector *b); +void sws_addVec(SwsVector *a, SwsVector *b); +void sws_subVec(SwsVector *a, SwsVector *b); +void sws_shiftVec(SwsVector *a, int shift); + +/** + * Allocates and returns a clone of the vector a, that is a vector + * with the same coefficients as a. + */ +SwsVector *sws_cloneVec(SwsVector *a); + +/** + * Prints with av_log() a textual representation of the vector a + * if log_level <= av_log_level. + */ +void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level); + +void sws_freeVec(SwsVector *a); + +SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, + float lumaSharpen, float chromaSharpen, + float chromaHShift, float chromaVShift, + int verbose); +void sws_freeFilter(SwsFilter *filter); + +/** + * Checks if context can be reused, otherwise reallocates a new + * one. + * + * If context is NULL, just calls sws_getContext() to get a new + * context. Otherwise, checks if the parameters are the ones already + * saved in context. If that is the case, returns the current + * context. Otherwise, frees context and gets a new context with + * the new parameters. + * + * Be warned that srcFilter and dstFilter are not checked, they + * are assumed to remain the same. + */ +struct SwsContext *sws_getCachedContext(struct SwsContext *context, + int srcW, int srcH, enum PixelFormat srcFormat, + int dstW, int dstH, enum PixelFormat dstFormat, + int flags, SwsFilter *srcFilter, + SwsFilter *dstFilter, const double *param); + +/** + * Converts an 8bit paletted frame into a frame with a color depth of 32-bits. + * + * The output frame will have the same packed format as the palette. + * + * @param src source frame buffer + * @param dst destination frame buffer + * @param num_pixels number of pixels to convert + * @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src + */ +void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette); + +/** + * Converts an 8bit paletted frame into a frame with a color depth of 24 bits. + * + * With the palette format "ABCD", the destination frame ends up with the format "ABC". + * + * @param src source frame buffer + * @param dst destination frame buffer + * @param num_pixels number of pixels to convert + * @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src + */ +void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette); + +/** + * Get the AVClass for swsContext. It can be used in combination with + * AV_OPT_SEARCH_FAKE_OBJ for examining options. + * + * @see av_opt_find(). + */ +const AVClass *sws_get_class(void); + +#endif /* SWSCALE_SWSCALE_H */