+++ /dev/null
-// ISO C9x compliant inttypes.h for Microsoft Visual Studio\r
-// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 \r
-// \r
-// Copyright (c) 2006 Alexander Chemeris\r
-// \r
-// Redistribution and use in source and binary forms, with or without\r
-// modification, are permitted provided that the following conditions are met:\r
-// \r
-// 1. Redistributions of source code must retain the above copyright notice,\r
-// this list of conditions and the following disclaimer.\r
-// \r
-// 2. Redistributions in binary form must reproduce the above copyright\r
-// notice, this list of conditions and the following disclaimer in the\r
-// documentation and/or other materials provided with the distribution.\r
-// \r
-// 3. The name of the author may be used to endorse or promote products\r
-// derived from this software without specific prior written permission.\r
-// \r
-// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED\r
-// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF\r
-// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO\r
-// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\r
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,\r
-// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;\r
-// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, \r
-// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR\r
-// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF\r
-// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
-// \r
-///////////////////////////////////////////////////////////////////////////////\r
-\r
-#ifndef _MSC_VER // [\r
-#error "Use this header only with Microsoft Visual C++ compilers!"\r
-#endif // _MSC_VER ]\r
-\r
-#ifndef _MSC_INTTYPES_H_ // [\r
-#define _MSC_INTTYPES_H_\r
-\r
-#if _MSC_VER > 1000\r
-#pragma once\r
-#endif\r
-\r
-#include "stdint.h"\r
-\r
-// 7.8 Format conversion of integer types\r
-\r
-typedef struct {\r
- intmax_t quot;\r
- intmax_t rem;\r
-} imaxdiv_t;\r
-\r
-// 7.8.1 Macros for format specifiers\r
-\r
-#if !defined(__cplusplus) || defined(__STDC_FORMAT_MACROS) // [ See footnote 185 at page 198\r
-\r
-// The fprintf macros for signed integers are:\r
-#define PRId8 "d"\r
-#define PRIi8 "i"\r
-#define PRIdLEAST8 "d"\r
-#define PRIiLEAST8 "i"\r
-#define PRIdFAST8 "d"\r
-#define PRIiFAST8 "i"\r
-\r
-#define PRId16 "hd"\r
-#define PRIi16 "hi"\r
-#define PRIdLEAST16 "hd"\r
-#define PRIiLEAST16 "hi"\r
-#define PRIdFAST16 "hd"\r
-#define PRIiFAST16 "hi"\r
-\r
-#define PRId32 "I32d"\r
-#define PRIi32 "I32i"\r
-#define PRIdLEAST32 "I32d"\r
-#define PRIiLEAST32 "I32i"\r
-#define PRIdFAST32 "I32d"\r
-#define PRIiFAST32 "I32i"\r
-\r
-#define PRId64 "I64d"\r
-#define PRIi64 "I64i"\r
-#define PRIdLEAST64 "I64d"\r
-#define PRIiLEAST64 "I64i"\r
-#define PRIdFAST64 "I64d"\r
-#define PRIiFAST64 "I64i"\r
-\r
-#define PRIdMAX "I64d"\r
-#define PRIiMAX "I64i"\r
-\r
-#define PRIdPTR "Id"\r
-#define PRIiPTR "Ii"\r
-\r
-// The fprintf macros for unsigned integers are:\r
-#define PRIo8 "o"\r
-#define PRIu8 "u"\r
-#define PRIx8 "x"\r
-#define PRIX8 "X"\r
-#define PRIoLEAST8 "o"\r
-#define PRIuLEAST8 "u"\r
-#define PRIxLEAST8 "x"\r
-#define PRIXLEAST8 "X"\r
-#define PRIoFAST8 "o"\r
-#define PRIuFAST8 "u"\r
-#define PRIxFAST8 "x"\r
-#define PRIXFAST8 "X"\r
-\r
-#define PRIo16 "ho"\r
-#define PRIu16 "hu"\r
-#define PRIx16 "hx"\r
-#define PRIX16 "hX"\r
-#define PRIoLEAST16 "ho"\r
-#define PRIuLEAST16 "hu"\r
-#define PRIxLEAST16 "hx"\r
-#define PRIXLEAST16 "hX"\r
-#define PRIoFAST16 "ho"\r
-#define PRIuFAST16 "hu"\r
-#define PRIxFAST16 "hx"\r
-#define PRIXFAST16 "hX"\r
-\r
-#define PRIo32 "I32o"\r
-#define PRIu32 "I32u"\r
-#define PRIx32 "I32x"\r
-#define PRIX32 "I32X"\r
-#define PRIoLEAST32 "I32o"\r
-#define PRIuLEAST32 "I32u"\r
-#define PRIxLEAST32 "I32x"\r
-#define PRIXLEAST32 "I32X"\r
-#define PRIoFAST32 "I32o"\r
-#define PRIuFAST32 "I32u"\r
-#define PRIxFAST32 "I32x"\r
-#define PRIXFAST32 "I32X"\r
-\r
-#define PRIo64 "I64o"\r
-#define PRIu64 "I64u"\r
-#define PRIx64 "I64x"\r
-#define PRIX64 "I64X"\r
-#define PRIoLEAST64 "I64o"\r
-#define PRIuLEAST64 "I64u"\r
-#define PRIxLEAST64 "I64x"\r
-#define PRIXLEAST64 "I64X"\r
-#define PRIoFAST64 "I64o"\r
-#define PRIuFAST64 "I64u"\r
-#define PRIxFAST64 "I64x"\r
-#define PRIXFAST64 "I64X"\r
-\r
-#define PRIoMAX "I64o"\r
-#define PRIuMAX "I64u"\r
-#define PRIxMAX "I64x"\r
-#define PRIXMAX "I64X"\r
-\r
-#define PRIoPTR "Io"\r
-#define PRIuPTR "Iu"\r
-#define PRIxPTR "Ix"\r
-#define PRIXPTR "IX"\r
-\r
-// The fscanf macros for signed integers are:\r
-#define SCNd8 "d"\r
-#define SCNi8 "i"\r
-#define SCNdLEAST8 "d"\r
-#define SCNiLEAST8 "i"\r
-#define SCNdFAST8 "d"\r
-#define SCNiFAST8 "i"\r
-\r
-#define SCNd16 "hd"\r
-#define SCNi16 "hi"\r
-#define SCNdLEAST16 "hd"\r
-#define SCNiLEAST16 "hi"\r
-#define SCNdFAST16 "hd"\r
-#define SCNiFAST16 "hi"\r
-\r
-#define SCNd32 "ld"\r
-#define SCNi32 "li"\r
-#define SCNdLEAST32 "ld"\r
-#define SCNiLEAST32 "li"\r
-#define SCNdFAST32 "ld"\r
-#define SCNiFAST32 "li"\r
-\r
-#define SCNd64 "I64d"\r
-#define SCNi64 "I64i"\r
-#define SCNdLEAST64 "I64d"\r
-#define SCNiLEAST64 "I64i"\r
-#define SCNdFAST64 "I64d"\r
-#define SCNiFAST64 "I64i"\r
-\r
-#define SCNdMAX "I64d"\r
-#define SCNiMAX "I64i"\r
-\r
-#ifdef _WIN64 // [\r
-# define SCNdPTR "I64d"\r
-# define SCNiPTR "I64i"\r
-#else // _WIN64 ][\r
-# define SCNdPTR "ld"\r
-# define SCNiPTR "li"\r
-#endif // _WIN64 ]\r
-\r
-// The fscanf macros for unsigned integers are:\r
-#define SCNo8 "o"\r
-#define SCNu8 "u"\r
-#define SCNx8 "x"\r
-#define SCNX8 "X"\r
-#define SCNoLEAST8 "o"\r
-#define SCNuLEAST8 "u"\r
-#define SCNxLEAST8 "x"\r
-#define SCNXLEAST8 "X"\r
-#define SCNoFAST8 "o"\r
-#define SCNuFAST8 "u"\r
-#define SCNxFAST8 "x"\r
-#define SCNXFAST8 "X"\r
-\r
-#define SCNo16 "ho"\r
-#define SCNu16 "hu"\r
-#define SCNx16 "hx"\r
-#define SCNX16 "hX"\r
-#define SCNoLEAST16 "ho"\r
-#define SCNuLEAST16 "hu"\r
-#define SCNxLEAST16 "hx"\r
-#define SCNXLEAST16 "hX"\r
-#define SCNoFAST16 "ho"\r
-#define SCNuFAST16 "hu"\r
-#define SCNxFAST16 "hx"\r
-#define SCNXFAST16 "hX"\r
-\r
-#define SCNo32 "lo"\r
-#define SCNu32 "lu"\r
-#define SCNx32 "lx"\r
-#define SCNX32 "lX"\r
-#define SCNoLEAST32 "lo"\r
-#define SCNuLEAST32 "lu"\r
-#define SCNxLEAST32 "lx"\r
-#define SCNXLEAST32 "lX"\r
-#define SCNoFAST32 "lo"\r
-#define SCNuFAST32 "lu"\r
-#define SCNxFAST32 "lx"\r
-#define SCNXFAST32 "lX"\r
-\r
-#define SCNo64 "I64o"\r
-#define SCNu64 "I64u"\r
-#define SCNx64 "I64x"\r
-#define SCNX64 "I64X"\r
-#define SCNoLEAST64 "I64o"\r
-#define SCNuLEAST64 "I64u"\r
-#define SCNxLEAST64 "I64x"\r
-#define SCNXLEAST64 "I64X"\r
-#define SCNoFAST64 "I64o"\r
-#define SCNuFAST64 "I64u"\r
-#define SCNxFAST64 "I64x"\r
-#define SCNXFAST64 "I64X"\r
-\r
-#define SCNoMAX "I64o"\r
-#define SCNuMAX "I64u"\r
-#define SCNxMAX "I64x"\r
-#define SCNXMAX "I64X"\r
-\r
-#ifdef _WIN64 // [\r
-# define SCNoPTR "I64o"\r
-# define SCNuPTR "I64u"\r
-# define SCNxPTR "I64x"\r
-# define SCNXPTR "I64X"\r
-#else // _WIN64 ][\r
-# define SCNoPTR "lo"\r
-# define SCNuPTR "lu"\r
-# define SCNxPTR "lx"\r
-# define SCNXPTR "lX"\r
-#endif // _WIN64 ]\r
-\r
-#endif // __STDC_FORMAT_MACROS ]\r
-\r
-// 7.8.2 Functions for greatest-width integer types\r
-\r
-// 7.8.2.1 The imaxabs function\r
-#define imaxabs _abs64\r
-\r
-// 7.8.2.2 The imaxdiv function\r
-\r
-// This is modified version of div() function from Microsoft's div.c found\r
-// in %MSVC.NET%\crt\src\div.c\r
-#ifdef STATIC_IMAXDIV // [\r
-static\r
-#else // STATIC_IMAXDIV ][\r
-_inline\r
-#endif // STATIC_IMAXDIV ]\r
-imaxdiv_t __cdecl imaxdiv(intmax_t numer, intmax_t denom)\r
-{\r
- imaxdiv_t result;\r
-\r
- result.quot = numer / denom;\r
- result.rem = numer % denom;\r
-\r
- if (numer < 0 && result.rem > 0) {\r
- // did division wrong; must fix up\r
- ++result.quot;\r
- result.rem -= denom;\r
- }\r
-\r
- return result;\r
-}\r
-\r
-// 7.8.2.3 The strtoimax and strtoumax functions\r
-#define strtoimax _strtoi64\r
-#define strtoumax _strtoui64\r
-\r
-// 7.8.2.4 The wcstoimax and wcstoumax functions\r
-#define wcstoimax _wcstoi64\r
-#define wcstoumax _wcstoui64\r
-\r
-\r
-#endif // _MSC_INTTYPES_H_ ]\r
+++ /dev/null
-/*
- * 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 <errno.h>
-#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. it is as close as possible to similar codecs.
- */
-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,
- CODEC_ID_FFH264,
- 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,
- CODEC_ID_8SVX_EXP,
- CODEC_ID_8SVX_FIB,
- 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,
- CODEC_ID_8SVX_RAW,
- CODEC_ID_G2M,
-
- /* 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,
-
- /* 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,
- CODEC_ID_SONIC,
- CODEC_ID_SONIC_LS,
- 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,
-
- /* 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,
-
- /* 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,
- CODEC_ID_XBIN,
- CODEC_ID_IDF,
-
- 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_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.<br>
- * 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_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_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
- */
-attribute_deprecated 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 'parse_only' field is true, then avcodec_parse_frame() can be used. */
-#define CODEC_CAP_PARSE_ONLY 0x0004
-#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 NULL at the end to get the delayed data.
- * 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;
-
-/**
- * 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
-
- /**
- * Number of frames the decoded output will be delayed relative to
- * the encoded input.
- * - encoding: Set by libavcodec.
- * - decoding: unused
- */
- 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;
-
- /**
- * 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;
-#define FF_ER_CAREFUL 1
-#define FF_ER_COMPLIANT 2
-#define FF_ER_AGGRESSIVE 3
-#if FF_API_VERY_AGGRESSIVE
-#define FF_ER_VERY_AGGRESSIVE 4
-#define FF_ER_EXPLODE 5
-#else
-#define FF_ER_EXPLODE 4
-#endif /* FF_API_VERY_AGGRESSIVE */
-
- /**
- * 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;
-
- int parse_only; /* - decoding only: If true, only parsing is done
- (function avcodec_parse_frame()). The frame
- data is returned. Only MPEG codecs support this now. */
-
- /**
- * 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;
-
- /**
- * internal_buffer count
- * Don't touch, used by libavcodec default_get_buffer().
- */
- int internal_buffer_count;
-
- /**
- * internal_buffers
- * Don't touch, used by libavcodec default_get_buffer().
- */
- void *internal_buffer;
-
- /**
- * 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, <value> 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, <value> 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;
-
- /**
- * 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.
- */
- int is_copy;
-
- /**
- * 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;
-
- /**
- * 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;
-} 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;
-
-#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.
- */
-#define AVPALETTE_SIZE 1024
-#define AVPALETTE_COUNT 256
-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);
-
-#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
- */
-int img_get_alpha_info(const AVPicture *src,
- enum PixelFormat pix_fmt, int width, int height);
-
-/* 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);
-
-/**
- * Set the fields of the given AVCodecContext to default values.
- *
- * @param s The AVCodecContext of which the fields should be set to default values.
- */
-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! */
-void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType);
-
-/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
- * we WILL change its arguments and name a few times! */
-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
- *
- * @deprecated use avcodec_alloc_context3()
- */
-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).
- *
- * @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 Some codecs 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);
-
-int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
- int *data_size_ptr,
- uint8_t *buf, int buf_size);
-
-/**
- * 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 */
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-/*
- * 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 <stdint.h>
-
-#include <dxva2api.h>
-
-#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 */
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-/*
- * 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 <stdint.h>
-
-/**
- * @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 */
+++ /dev/null
-/*
- * 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 <vdpau/vdpau.h>
-#include <vdpau/vdpau_x11.h>
-
-/** @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 */
+++ /dev/null
-/*
- *
- * 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 16
-#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_VERY_AGGRESSIVE
-#define FF_API_VERY_AGGRESSIVE (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
-
-#endif /* AVCODEC_VERSION_H */
+++ /dev/null
-/*
- * 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 <X11/extensions/XvMC.h>
-
-#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 */
+++ /dev/null
-/*
- * 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 */
-
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-/*
- * 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 43
-#define LIBAVFILTER_VERSION_MICRO 2
-
-#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 (LIBAVUTIL_VERSION_MAJOR < 3)
-#endif
-#ifndef FF_API_OLD_ALL_FORMATS_API
-#define FF_API_OLD_ALL_FORMATS_API (LIBAVUTIL_VERSION_MAJOR < 3)
-#endif
-
-#include <stddef.h>
-
-/**
- * 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
-
-/**
- * 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
- * timeconsuming 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);
-
-/**
- * Notifie 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);
-
-/**
- * Notifie 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 recommanded 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 builtin 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 succesfull, 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 */
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-/*
- * 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 <time.h>
-#include <stdio.h> /* 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 -- <self-evident>.
- 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_TS_NONSTRICT 0x8000 /**< 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.
- */
- 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;
-#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;
-
- /* internal data used in av_find_stream_info() */
- int64_t first_dts;
-
- /**
- * 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;
- int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */
- /* ffmpeg.c private use */
- int stream_copy; /**< If set, just copy stream. */
- 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 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;
-
- /* 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;
-
- int64_t nb_frames; ///< number of frames in this stream if known or 0
-
- int disposition; /**< AV_DISPOSITION_* bit field */
-
- AVProbeData probe_data;
-#define MAX_REORDER_DELAY 16
- int64_t pts_buffer[MAX_REORDER_DELAY+1];
-
- /**
- * sample aspect ratio (0 if unknown)
- * - encoding: Set by user.
- * - decoding: Set by libavformat.
- */
- AVRational sample_aspect_ratio;
-
- AVDictionary *metadata;
-
- /* 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;
-
- /**
- * Average framerate
- */
- AVRational avg_frame_rate;
-
- /**
- * 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;
- } *info;
-
- /**
- * flag to indicate that probing is requested
- * NOT PART OF PUBLIC API
- */
- int request_probe;
-} 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*.
- */
-typedef struct AVFormatContext {
- const AVClass *av_class; /**< Set by avformat_alloc_context. */
- /* Can only be iformat or oformat, not both at the same time. */
- struct AVInputFormat *iformat;
- struct AVOutputFormat *oformat;
- void *priv_data;
- AVIOContext *pb;
- 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 */
- /* 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;
-
- /**
- * 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;
-
- /**
- * decoding: total file size, 0 if unknown
- */
- int64_t file_size;
-
- /**
- * 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;
-
- /* av_read_frame() support */
- AVStream *cur_st;
-
- /* av_seek_frame() support */
- int64_t data_offset; /**< offset of the first packet */
-
- int mux_rate;
- unsigned int packet_size;
- int preload;
- 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;
-
- /**
- * Maximum time (in AV_TIME_BASE units) during which the input should
- * be analyzed in av_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
-
- /**
- * 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;
-
- AVDictionary *metadata;
-
- /**
- * 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;
-
- /**
- * 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;
-
- /**
- * Transport stream id.
- * This will be moved into demuxer private options. Thus no API/ABI compatibility
- */
- int ts_id;
-} 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);
-
-/**
- * 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
- */
-AVStream *av_new_stream(AVFormatContext *s, int id);
-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);
-
-/**
- * Perform a binary search using av_index_search_timestamp() and
- * AVInputFormat.read_timestamp().
- * This is not supposed to be called directly by a user application,
- * but by demuxers.
- * @param target_ts target timestamp in the time base of the given stream
- * @param stream_index stream number
- */
-int av_seek_frame_binary(AVFormatContext *s, int stream_index,
- int64_t target_ts, int flags);
-
-/**
- * Update cur_dts of all streams based on the given timestamp and AVStream.
- *
- * Stream ref_st unchanged, others set cur_dts in their native time base.
- * Only needed for timestamp wrapping or if (dts not set and pts!=dts).
- * @param timestamp new dts expressed in time_base of param ref_st
- * @param ref_st reference stream giving time_base of param timestamp
- */
-void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp);
-
-/**
- * Perform a binary search using read_timestamp().
- * This is not supposed to be called directly by a user application,
- * but by demuxers.
- * @param target_ts target timestamp in the time base of the given stream
- * @param stream_index stream number
- */
-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 ));
-
-/**
- * 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);
-
-#endif /* AVFORMAT_AVFORMAT_H */
+++ /dev/null
-/*
- * 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 <stdint.h>
-
-#include "libavutil/common.h"
-#include "libavutil/log.h"
-
-#include "libavformat/version.h"
-
-
-#define AVIO_SEEKABLE_NORMAL 0x0001 /**< Seeking works like for a local file */
-
-/**
- * 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 {
- 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;
-} 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);
-
-/**
- * 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.
- */
-void avio_set_interrupt_cb(int (*interrupt_cb)(void));
-
-/**
- * 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);
-
-/**
- * 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 */
+++ /dev/null
-/*
- * 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 12
-#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
-
-#endif /* AVFORMAT_VERSION_H */
+++ /dev/null
-/*
- * 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 <stdint.h>
-#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 */
+++ /dev/null
-/*
- * copyright (c) 2007 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 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 <stdint.h>
-
-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 */
+++ /dev/null
-/*
- * copyright (c) 2006 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 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_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
-
-#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 */
+++ /dev/null
-/*
- * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- * 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 <stdint.h>
-
-/**
- * @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.
- */
-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);
-
-#endif /* AVUTIL_AUDIOCONVERT_H */
+++ /dev/null
-/*
- * copyright (c) 2010 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 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 <michaelni@gmx.at>
- */
-
-#ifndef AVUTIL_AVASSERT_H
-#define AVUTIL_AVASSERT_H
-
-#include <stdlib.h>
-#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 */
+++ /dev/null
-/* 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 */
+++ /dev/null
-/*
- * 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 <stddef.h>
-#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);
-
-#endif /* AVUTIL_AVSTRING_H */
+++ /dev/null
-/*
- * copyright (c) 2006 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 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 16
-#define LIBAVUTIL_VERSION_MICRO 1
-
-#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<<FF_LAMBDA_SHIFT)
-#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
-#define FF_LAMBDA_MAX (256*128-1)
-
-#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
-
-#define AV_NOPTS_VALUE INT64_C(0x8000000000000000)
-#define AV_TIME_BASE 1000000
-#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
-
-enum AVPictureType {
- AV_PICTURE_TYPE_NONE = 0, ///< Undefined
- AV_PICTURE_TYPE_I, ///< Intra
- AV_PICTURE_TYPE_P, ///< Predicted
- AV_PICTURE_TYPE_B, ///< Bi-dir predicted
- AV_PICTURE_TYPE_S, ///< S(GMC)-VOP MPEG4
- AV_PICTURE_TYPE_SI, ///< Switching Intra
- AV_PICTURE_TYPE_SP, ///< Switching Predicted
- AV_PICTURE_TYPE_BI, ///< BI type
-};
-
-/**
- * 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, '?' if pict_type is unknown
- */
-char av_get_picture_type_char(enum AVPictureType pict_type);
-
-#include "common.h"
-#include "error.h"
-#include "mathematics.h"
-#include "rational.h"
-#include "intfloat_readwrite.h"
-#include "log.h"
-#include "pixfmt.h"
-
-#endif /* AVUTIL_AVUTIL_H */
+++ /dev/null
-/*
- * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
- *
- * 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_BASE64_H
-#define AVUTIL_BASE64_H
-
-#include <stdint.h>
-
-/**
- * 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 */
+++ /dev/null
-/*
- * copyright (c) 2006 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 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 <stdint.h>
-#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 */
+++ /dev/null
-/*
- * copyright (c) 2006 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 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 <ctype.h>
-#include <errno.h>
-#include <inttypes.h>
-#include <limits.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#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<<p) - 1)) return -a >> 31 & ((1<<p) - 1);
- else return a;
-}
-
-/**
- * Clip a float 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 float av_clipf_c(float a, float amin, float amax)
-{
- if (a < amin) return amin;
- else if (a > 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
+++ /dev/null
-/*
- * 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_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 */
+++ /dev/null
-/*
- * copyright (c) 2006 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 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 <stdint.h>
-#include <stddef.h>
-#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 */
-
+++ /dev/null
-/*
- *
- * 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
+++ /dev/null
-/*
- * 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 <errno.h>
-#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 */
+++ /dev/null
-/*
- * Copyright (c) 2002 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 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 */
+++ /dev/null
-/*
- * 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 <stdint.h>
-#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 */
+++ /dev/null
-/*
- * 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);
-
-#endif /* AVUTIL_FILE_H */
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-/*
- * copyright (c) 2005 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 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 <stdint.h>
-#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 */
+++ /dev/null
-/*
- * 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 <stdint.h>
-#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 */
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-/*
- * copyright (c) 2006 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 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 <stdarg.h>
-#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 {
- /**
- * 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;
-
- /**
- * A function for extended searching, e.g. in possible
- * children objects.
- */
- const struct AVOption* (*opt_find)(void *obj, const char *name, const char *unit,
- int opt_flags, int search_flags);
-} 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 */
+++ /dev/null
-/*
- * 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 <stdint.h>
-
-/** @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 */
+++ /dev/null
-/*
- * copyright (c) 2005 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 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 <stdint.h>
-#include <math.h>
-#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 */
+++ /dev/null
-/*
- * copyright (c) 2006 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 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 <stdint.h>
-
-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 */
-
+++ /dev/null
-/*
- * copyright (c) 2006 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 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 "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);
-
-/**
- * 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);
-
-/**
- * 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);
-
-#endif /* AVUTIL_MEM_H */
+++ /dev/null
-/*
- * AVOptions
- * copyright (c) 2005 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 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"
-
-enum AVOptionType{
- FF_OPT_TYPE_FLAGS,
- 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,
-};
-
-/**
- * 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
-
-/**
- * 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 when 1 then the old value will be av_freed() and the
- * new av_strduped()
- * when 0 then no av_free() nor av_strdup() will be used
- * @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_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out);
-
-const AVOption *av_set_double(void *obj, const char *name, double n);
-const AVOption *av_set_q(void *obj, const char *name, AVRational n);
-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);
-const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len);
-const AVOption *av_next_option(void *obj, const AVOption *last);
-
-/**
- * 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);
-
-#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);
-
-#endif /* AVUTIL_OPT_H */
+++ /dev/null
-/*
- * 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 "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);
-
-#endif /* AVUTIL_PARSEUTILS_H */
+++ /dev/null
-/*
- * pixel format descriptor
- * Copyright (c) 2009 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 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 <inttypes.h>
-#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 */
+++ /dev/null
-/*
- * copyright (c) 2006 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 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_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_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)
-
-#endif /* AVUTIL_PIXFMT_H */
+++ /dev/null
-/*
- * Copyright (c) 2009 Baptiste Coudurier <baptiste.coudurier@gmail.com>
- *
- * 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 <stdint.h>
-
-/**
- * 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 */
+++ /dev/null
-/*
- * rational numbers
- * Copyright (c) 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 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 <michaelni@gmx.at>
- */
-
-#ifndef AVUTIL_RATIONAL_H
-#define AVUTIL_RATIONAL_H
-
-#include <stdint.h>
-#include <limits.h>
-#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<b, and INT_MIN if one of the
- * values is of the form 0/0
- */
-static inline int av_cmp_q(AVRational a, AVRational b){
- const int64_t tmp= a.num * (int64_t)b.den - b.num * (int64_t)a.den;
-
- if(tmp) return ((tmp ^ a.den ^ b.den)>>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 */
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-/*
- * Copyright (C) 2007 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 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 <stdint.h>
-
-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 */
+++ /dev/null
-/*
- * 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 <inttypes.h>
-
-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 */
+++ /dev/null
-/*
- * 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
- */
-
-#ifndef SWR_H
-#define SWR_H
-
-#include <inttypes.h>
-#include "libavutil/samplefmt.h"
-
-#define LIBSWRESAMPLE_VERSION_MAJOR 0
-#define LIBSWRESAMPLE_VERSION_MINOR 0
-#define LIBSWRESAMPLE_VERSION_MICRO 0
-
-#define SWR_CH_MAX 16
-
-#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.
- * @see swr_init(),swr_free()
- * @return NULL on error
- */
-struct SwrContext *swr_alloc(void);
-
-/**
- * Initialize context after user parameters have been set.
- * @return negativo n error
- */
-int swr_init(struct SwrContext *s);
-
-/**
- * Allocate SwrContext.
- * @see swr_init(),swr_free()
- * @return NULL on error
- */
-struct SwrContext *swr_alloc2(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.
- * @param in_count Number of input samples available in one channel.
- * @param out_count Amount of space available for output in samples per 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);
-
-void swr_compensate(struct SwrContext *s, int sample_delta, int compensation_distance);
-
-#endif
+++ /dev/null
-/*
- * 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 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 */
projects / casparcg / commitdiff