#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
+#include "bsf.h"
+#include "codec_desc.h"
+#include "codec_par.h"
+#include "codec_id.h"
+#include "packet.h"
#include "version.h"
/**
* compressed data in an AVPacket.
* - For encoding, call avcodec_send_frame() to give the encoder an AVFrame
* containing uncompressed audio or video.
+ *
* In both cases, it is recommended that AVPackets and AVFrames are
* refcounted, or libavcodec might have to copy the input data. (libavformat
* always returns refcounted AVPackets, and av_frame_get_buffer() allocates
* an AVFrame containing uncompressed audio or video data.
* - For encoding, call avcodec_receive_packet(). On success, it will return
* an AVPacket with a compressed frame.
+ *
* Repeat this call until it returns AVERROR(EAGAIN) or an error. The
* AVERROR(EAGAIN) return value means that new input data is required to
* return new output. In this case, continue with sending input. For each
* @{
*/
-
-/**
- * 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 an existing codec ID changes (that would break ABI),
- * 2. it is as close as possible to similar codecs
- *
- * After adding new codec IDs, do not forget to add an entry to the codec
- * descriptor list and bump libavcodec minor version.
- */
-enum AVCodecID {
- AV_CODEC_ID_NONE,
-
- /* video codecs */
- AV_CODEC_ID_MPEG1VIDEO,
- AV_CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
- AV_CODEC_ID_H261,
- AV_CODEC_ID_H263,
- AV_CODEC_ID_RV10,
- AV_CODEC_ID_RV20,
- AV_CODEC_ID_MJPEG,
- AV_CODEC_ID_MJPEGB,
- AV_CODEC_ID_LJPEG,
- AV_CODEC_ID_SP5X,
- AV_CODEC_ID_JPEGLS,
- AV_CODEC_ID_MPEG4,
- AV_CODEC_ID_RAWVIDEO,
- AV_CODEC_ID_MSMPEG4V1,
- AV_CODEC_ID_MSMPEG4V2,
- AV_CODEC_ID_MSMPEG4V3,
- AV_CODEC_ID_WMV1,
- AV_CODEC_ID_WMV2,
- AV_CODEC_ID_H263P,
- AV_CODEC_ID_H263I,
- AV_CODEC_ID_FLV1,
- AV_CODEC_ID_SVQ1,
- AV_CODEC_ID_SVQ3,
- AV_CODEC_ID_DVVIDEO,
- AV_CODEC_ID_HUFFYUV,
- AV_CODEC_ID_CYUV,
- AV_CODEC_ID_H264,
- AV_CODEC_ID_INDEO3,
- AV_CODEC_ID_VP3,
- AV_CODEC_ID_THEORA,
- AV_CODEC_ID_ASV1,
- AV_CODEC_ID_ASV2,
- AV_CODEC_ID_FFV1,
- AV_CODEC_ID_4XM,
- AV_CODEC_ID_VCR1,
- AV_CODEC_ID_CLJR,
- AV_CODEC_ID_MDEC,
- AV_CODEC_ID_ROQ,
- AV_CODEC_ID_INTERPLAY_VIDEO,
- AV_CODEC_ID_XAN_WC3,
- AV_CODEC_ID_XAN_WC4,
- AV_CODEC_ID_RPZA,
- AV_CODEC_ID_CINEPAK,
- AV_CODEC_ID_WS_VQA,
- AV_CODEC_ID_MSRLE,
- AV_CODEC_ID_MSVIDEO1,
- AV_CODEC_ID_IDCIN,
- AV_CODEC_ID_8BPS,
- AV_CODEC_ID_SMC,
- AV_CODEC_ID_FLIC,
- AV_CODEC_ID_TRUEMOTION1,
- AV_CODEC_ID_VMDVIDEO,
- AV_CODEC_ID_MSZH,
- AV_CODEC_ID_ZLIB,
- AV_CODEC_ID_QTRLE,
- AV_CODEC_ID_TSCC,
- AV_CODEC_ID_ULTI,
- AV_CODEC_ID_QDRAW,
- AV_CODEC_ID_VIXL,
- AV_CODEC_ID_QPEG,
- AV_CODEC_ID_PNG,
- AV_CODEC_ID_PPM,
- AV_CODEC_ID_PBM,
- AV_CODEC_ID_PGM,
- AV_CODEC_ID_PGMYUV,
- AV_CODEC_ID_PAM,
- AV_CODEC_ID_FFVHUFF,
- AV_CODEC_ID_RV30,
- AV_CODEC_ID_RV40,
- AV_CODEC_ID_VC1,
- AV_CODEC_ID_WMV3,
- AV_CODEC_ID_LOCO,
- AV_CODEC_ID_WNV1,
- AV_CODEC_ID_AASC,
- AV_CODEC_ID_INDEO2,
- AV_CODEC_ID_FRAPS,
- AV_CODEC_ID_TRUEMOTION2,
- AV_CODEC_ID_BMP,
- AV_CODEC_ID_CSCD,
- AV_CODEC_ID_MMVIDEO,
- AV_CODEC_ID_ZMBV,
- AV_CODEC_ID_AVS,
- AV_CODEC_ID_SMACKVIDEO,
- AV_CODEC_ID_NUV,
- AV_CODEC_ID_KMVC,
- AV_CODEC_ID_FLASHSV,
- AV_CODEC_ID_CAVS,
- AV_CODEC_ID_JPEG2000,
- AV_CODEC_ID_VMNC,
- AV_CODEC_ID_VP5,
- AV_CODEC_ID_VP6,
- AV_CODEC_ID_VP6F,
- AV_CODEC_ID_TARGA,
- AV_CODEC_ID_DSICINVIDEO,
- AV_CODEC_ID_TIERTEXSEQVIDEO,
- AV_CODEC_ID_TIFF,
- AV_CODEC_ID_GIF,
- AV_CODEC_ID_DXA,
- AV_CODEC_ID_DNXHD,
- AV_CODEC_ID_THP,
- AV_CODEC_ID_SGI,
- AV_CODEC_ID_C93,
- AV_CODEC_ID_BETHSOFTVID,
- AV_CODEC_ID_PTX,
- AV_CODEC_ID_TXD,
- AV_CODEC_ID_VP6A,
- AV_CODEC_ID_AMV,
- AV_CODEC_ID_VB,
- AV_CODEC_ID_PCX,
- AV_CODEC_ID_SUNRAST,
- AV_CODEC_ID_INDEO4,
- AV_CODEC_ID_INDEO5,
- AV_CODEC_ID_MIMIC,
- AV_CODEC_ID_RL2,
- AV_CODEC_ID_ESCAPE124,
- AV_CODEC_ID_DIRAC,
- AV_CODEC_ID_BFI,
- AV_CODEC_ID_CMV,
- AV_CODEC_ID_MOTIONPIXELS,
- AV_CODEC_ID_TGV,
- AV_CODEC_ID_TGQ,
- AV_CODEC_ID_TQI,
- AV_CODEC_ID_AURA,
- AV_CODEC_ID_AURA2,
- AV_CODEC_ID_V210X,
- AV_CODEC_ID_TMV,
- AV_CODEC_ID_V210,
- AV_CODEC_ID_DPX,
- AV_CODEC_ID_MAD,
- AV_CODEC_ID_FRWU,
- AV_CODEC_ID_FLASHSV2,
- AV_CODEC_ID_CDGRAPHICS,
- AV_CODEC_ID_R210,
- AV_CODEC_ID_ANM,
- AV_CODEC_ID_BINKVIDEO,
- AV_CODEC_ID_IFF_ILBM,
-#define AV_CODEC_ID_IFF_BYTERUN1 AV_CODEC_ID_IFF_ILBM
- AV_CODEC_ID_KGV1,
- AV_CODEC_ID_YOP,
- AV_CODEC_ID_VP8,
- AV_CODEC_ID_PICTOR,
- AV_CODEC_ID_ANSI,
- AV_CODEC_ID_A64_MULTI,
- AV_CODEC_ID_A64_MULTI5,
- AV_CODEC_ID_R10K,
- AV_CODEC_ID_MXPEG,
- AV_CODEC_ID_LAGARITH,
- AV_CODEC_ID_PRORES,
- AV_CODEC_ID_JV,
- AV_CODEC_ID_DFA,
- AV_CODEC_ID_WMV3IMAGE,
- AV_CODEC_ID_VC1IMAGE,
- AV_CODEC_ID_UTVIDEO,
- AV_CODEC_ID_BMV_VIDEO,
- AV_CODEC_ID_VBLE,
- AV_CODEC_ID_DXTORY,
- AV_CODEC_ID_V410,
- AV_CODEC_ID_XWD,
- AV_CODEC_ID_CDXL,
- AV_CODEC_ID_XBM,
- AV_CODEC_ID_ZEROCODEC,
- AV_CODEC_ID_MSS1,
- AV_CODEC_ID_MSA1,
- AV_CODEC_ID_TSCC2,
- AV_CODEC_ID_MTS2,
- AV_CODEC_ID_CLLC,
- AV_CODEC_ID_MSS2,
- AV_CODEC_ID_VP9,
- AV_CODEC_ID_AIC,
- AV_CODEC_ID_ESCAPE130,
- AV_CODEC_ID_G2M,
- AV_CODEC_ID_WEBP,
- AV_CODEC_ID_HNM4_VIDEO,
- AV_CODEC_ID_HEVC,
-#define AV_CODEC_ID_H265 AV_CODEC_ID_HEVC
- AV_CODEC_ID_FIC,
- AV_CODEC_ID_ALIAS_PIX,
- AV_CODEC_ID_BRENDER_PIX,
- AV_CODEC_ID_PAF_VIDEO,
- AV_CODEC_ID_EXR,
- AV_CODEC_ID_VP7,
- AV_CODEC_ID_SANM,
- AV_CODEC_ID_SGIRLE,
- AV_CODEC_ID_MVC1,
- AV_CODEC_ID_MVC2,
- AV_CODEC_ID_HQX,
- AV_CODEC_ID_TDSC,
- AV_CODEC_ID_HQ_HQA,
- AV_CODEC_ID_HAP,
- AV_CODEC_ID_DDS,
- AV_CODEC_ID_DXV,
- AV_CODEC_ID_SCREENPRESSO,
- AV_CODEC_ID_RSCC,
- AV_CODEC_ID_AVS2,
-
- AV_CODEC_ID_Y41P = 0x8000,
- AV_CODEC_ID_AVRP,
- AV_CODEC_ID_012V,
- AV_CODEC_ID_AVUI,
- AV_CODEC_ID_AYUV,
- AV_CODEC_ID_TARGA_Y216,
- AV_CODEC_ID_V308,
- AV_CODEC_ID_V408,
- AV_CODEC_ID_YUV4,
- AV_CODEC_ID_AVRN,
- AV_CODEC_ID_CPIA,
- AV_CODEC_ID_XFACE,
- AV_CODEC_ID_SNOW,
- AV_CODEC_ID_SMVJPEG,
- AV_CODEC_ID_APNG,
- AV_CODEC_ID_DAALA,
- AV_CODEC_ID_CFHD,
- AV_CODEC_ID_TRUEMOTION2RT,
- AV_CODEC_ID_M101,
- AV_CODEC_ID_MAGICYUV,
- AV_CODEC_ID_SHEERVIDEO,
- AV_CODEC_ID_YLC,
- AV_CODEC_ID_PSD,
- AV_CODEC_ID_PIXLET,
- AV_CODEC_ID_SPEEDHQ,
- AV_CODEC_ID_FMVC,
- AV_CODEC_ID_SCPR,
- AV_CODEC_ID_CLEARVIDEO,
- AV_CODEC_ID_XPM,
- AV_CODEC_ID_AV1,
- AV_CODEC_ID_BITPACKED,
- AV_CODEC_ID_MSCC,
- AV_CODEC_ID_SRGC,
- AV_CODEC_ID_SVG,
- AV_CODEC_ID_GDV,
- AV_CODEC_ID_FITS,
- AV_CODEC_ID_IMM4,
- AV_CODEC_ID_PROSUMER,
- AV_CODEC_ID_MWSC,
- AV_CODEC_ID_WCMV,
- AV_CODEC_ID_RASC,
- AV_CODEC_ID_HYMT,
- AV_CODEC_ID_ARBC,
- AV_CODEC_ID_AGM,
-
- /* various PCM "codecs" */
- AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
- AV_CODEC_ID_PCM_S16LE = 0x10000,
- AV_CODEC_ID_PCM_S16BE,
- AV_CODEC_ID_PCM_U16LE,
- AV_CODEC_ID_PCM_U16BE,
- AV_CODEC_ID_PCM_S8,
- AV_CODEC_ID_PCM_U8,
- AV_CODEC_ID_PCM_MULAW,
- AV_CODEC_ID_PCM_ALAW,
- AV_CODEC_ID_PCM_S32LE,
- AV_CODEC_ID_PCM_S32BE,
- AV_CODEC_ID_PCM_U32LE,
- AV_CODEC_ID_PCM_U32BE,
- AV_CODEC_ID_PCM_S24LE,
- AV_CODEC_ID_PCM_S24BE,
- AV_CODEC_ID_PCM_U24LE,
- AV_CODEC_ID_PCM_U24BE,
- AV_CODEC_ID_PCM_S24DAUD,
- AV_CODEC_ID_PCM_ZORK,
- AV_CODEC_ID_PCM_S16LE_PLANAR,
- AV_CODEC_ID_PCM_DVD,
- AV_CODEC_ID_PCM_F32BE,
- AV_CODEC_ID_PCM_F32LE,
- AV_CODEC_ID_PCM_F64BE,
- AV_CODEC_ID_PCM_F64LE,
- AV_CODEC_ID_PCM_BLURAY,
- AV_CODEC_ID_PCM_LXF,
- AV_CODEC_ID_S302M,
- AV_CODEC_ID_PCM_S8_PLANAR,
- AV_CODEC_ID_PCM_S24LE_PLANAR,
- AV_CODEC_ID_PCM_S32LE_PLANAR,
- AV_CODEC_ID_PCM_S16BE_PLANAR,
-
- AV_CODEC_ID_PCM_S64LE = 0x10800,
- AV_CODEC_ID_PCM_S64BE,
- AV_CODEC_ID_PCM_F16LE,
- AV_CODEC_ID_PCM_F24LE,
- AV_CODEC_ID_PCM_VIDC,
-
- /* various ADPCM codecs */
- AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
- AV_CODEC_ID_ADPCM_IMA_WAV,
- AV_CODEC_ID_ADPCM_IMA_DK3,
- AV_CODEC_ID_ADPCM_IMA_DK4,
- AV_CODEC_ID_ADPCM_IMA_WS,
- AV_CODEC_ID_ADPCM_IMA_SMJPEG,
- AV_CODEC_ID_ADPCM_MS,
- AV_CODEC_ID_ADPCM_4XM,
- AV_CODEC_ID_ADPCM_XA,
- AV_CODEC_ID_ADPCM_ADX,
- AV_CODEC_ID_ADPCM_EA,
- AV_CODEC_ID_ADPCM_G726,
- AV_CODEC_ID_ADPCM_CT,
- AV_CODEC_ID_ADPCM_SWF,
- AV_CODEC_ID_ADPCM_YAMAHA,
- AV_CODEC_ID_ADPCM_SBPRO_4,
- AV_CODEC_ID_ADPCM_SBPRO_3,
- AV_CODEC_ID_ADPCM_SBPRO_2,
- AV_CODEC_ID_ADPCM_THP,
- AV_CODEC_ID_ADPCM_IMA_AMV,
- AV_CODEC_ID_ADPCM_EA_R1,
- AV_CODEC_ID_ADPCM_EA_R3,
- AV_CODEC_ID_ADPCM_EA_R2,
- AV_CODEC_ID_ADPCM_IMA_EA_SEAD,
- AV_CODEC_ID_ADPCM_IMA_EA_EACS,
- AV_CODEC_ID_ADPCM_EA_XAS,
- AV_CODEC_ID_ADPCM_EA_MAXIS_XA,
- AV_CODEC_ID_ADPCM_IMA_ISS,
- AV_CODEC_ID_ADPCM_G722,
- AV_CODEC_ID_ADPCM_IMA_APC,
- AV_CODEC_ID_ADPCM_VIMA,
-
- AV_CODEC_ID_ADPCM_AFC = 0x11800,
- AV_CODEC_ID_ADPCM_IMA_OKI,
- AV_CODEC_ID_ADPCM_DTK,
- AV_CODEC_ID_ADPCM_IMA_RAD,
- AV_CODEC_ID_ADPCM_G726LE,
- AV_CODEC_ID_ADPCM_THP_LE,
- AV_CODEC_ID_ADPCM_PSX,
- AV_CODEC_ID_ADPCM_AICA,
- AV_CODEC_ID_ADPCM_IMA_DAT4,
- AV_CODEC_ID_ADPCM_MTAF,
- AV_CODEC_ID_ADPCM_AGM,
-
- /* AMR */
- AV_CODEC_ID_AMR_NB = 0x12000,
- AV_CODEC_ID_AMR_WB,
-
- /* RealAudio codecs*/
- AV_CODEC_ID_RA_144 = 0x13000,
- AV_CODEC_ID_RA_288,
-
- /* various DPCM codecs */
- AV_CODEC_ID_ROQ_DPCM = 0x14000,
- AV_CODEC_ID_INTERPLAY_DPCM,
- AV_CODEC_ID_XAN_DPCM,
- AV_CODEC_ID_SOL_DPCM,
-
- AV_CODEC_ID_SDX2_DPCM = 0x14800,
- AV_CODEC_ID_GREMLIN_DPCM,
-
- /* audio codecs */
- AV_CODEC_ID_MP2 = 0x15000,
- AV_CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
- AV_CODEC_ID_AAC,
- AV_CODEC_ID_AC3,
- AV_CODEC_ID_DTS,
- AV_CODEC_ID_VORBIS,
- AV_CODEC_ID_DVAUDIO,
- AV_CODEC_ID_WMAV1,
- AV_CODEC_ID_WMAV2,
- AV_CODEC_ID_MACE3,
- AV_CODEC_ID_MACE6,
- AV_CODEC_ID_VMDAUDIO,
- AV_CODEC_ID_FLAC,
- AV_CODEC_ID_MP3ADU,
- AV_CODEC_ID_MP3ON4,
- AV_CODEC_ID_SHORTEN,
- AV_CODEC_ID_ALAC,
- AV_CODEC_ID_WESTWOOD_SND1,
- AV_CODEC_ID_GSM, ///< as in Berlin toast format
- AV_CODEC_ID_QDM2,
- AV_CODEC_ID_COOK,
- AV_CODEC_ID_TRUESPEECH,
- AV_CODEC_ID_TTA,
- AV_CODEC_ID_SMACKAUDIO,
- AV_CODEC_ID_QCELP,
- AV_CODEC_ID_WAVPACK,
- AV_CODEC_ID_DSICINAUDIO,
- AV_CODEC_ID_IMC,
- AV_CODEC_ID_MUSEPACK7,
- AV_CODEC_ID_MLP,
- AV_CODEC_ID_GSM_MS, /* as found in WAV */
- AV_CODEC_ID_ATRAC3,
- AV_CODEC_ID_APE,
- AV_CODEC_ID_NELLYMOSER,
- AV_CODEC_ID_MUSEPACK8,
- AV_CODEC_ID_SPEEX,
- AV_CODEC_ID_WMAVOICE,
- AV_CODEC_ID_WMAPRO,
- AV_CODEC_ID_WMALOSSLESS,
- AV_CODEC_ID_ATRAC3P,
- AV_CODEC_ID_EAC3,
- AV_CODEC_ID_SIPR,
- AV_CODEC_ID_MP1,
- AV_CODEC_ID_TWINVQ,
- AV_CODEC_ID_TRUEHD,
- AV_CODEC_ID_MP4ALS,
- AV_CODEC_ID_ATRAC1,
- AV_CODEC_ID_BINKAUDIO_RDFT,
- AV_CODEC_ID_BINKAUDIO_DCT,
- AV_CODEC_ID_AAC_LATM,
- AV_CODEC_ID_QDMC,
- AV_CODEC_ID_CELT,
- AV_CODEC_ID_G723_1,
- AV_CODEC_ID_G729,
- AV_CODEC_ID_8SVX_EXP,
- AV_CODEC_ID_8SVX_FIB,
- AV_CODEC_ID_BMV_AUDIO,
- AV_CODEC_ID_RALF,
- AV_CODEC_ID_IAC,
- AV_CODEC_ID_ILBC,
- AV_CODEC_ID_OPUS,
- AV_CODEC_ID_COMFORT_NOISE,
- AV_CODEC_ID_TAK,
- AV_CODEC_ID_METASOUND,
- AV_CODEC_ID_PAF_AUDIO,
- AV_CODEC_ID_ON2AVC,
- AV_CODEC_ID_DSS_SP,
- AV_CODEC_ID_CODEC2,
-
- AV_CODEC_ID_FFWAVESYNTH = 0x15800,
- AV_CODEC_ID_SONIC,
- AV_CODEC_ID_SONIC_LS,
- AV_CODEC_ID_EVRC,
- AV_CODEC_ID_SMV,
- AV_CODEC_ID_DSD_LSBF,
- AV_CODEC_ID_DSD_MSBF,
- AV_CODEC_ID_DSD_LSBF_PLANAR,
- AV_CODEC_ID_DSD_MSBF_PLANAR,
- AV_CODEC_ID_4GV,
- AV_CODEC_ID_INTERPLAY_ACM,
- AV_CODEC_ID_XMA1,
- AV_CODEC_ID_XMA2,
- AV_CODEC_ID_DST,
- AV_CODEC_ID_ATRAC3AL,
- AV_CODEC_ID_ATRAC3PAL,
- AV_CODEC_ID_DOLBY_E,
- AV_CODEC_ID_APTX,
- AV_CODEC_ID_APTX_HD,
- AV_CODEC_ID_SBC,
- AV_CODEC_ID_ATRAC9,
- AV_CODEC_ID_HCOM,
-
- /* subtitle codecs */
- AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs.
- AV_CODEC_ID_DVD_SUBTITLE = 0x17000,
- AV_CODEC_ID_DVB_SUBTITLE,
- AV_CODEC_ID_TEXT, ///< raw UTF-8 text
- AV_CODEC_ID_XSUB,
- AV_CODEC_ID_SSA,
- AV_CODEC_ID_MOV_TEXT,
- AV_CODEC_ID_HDMV_PGS_SUBTITLE,
- AV_CODEC_ID_DVB_TELETEXT,
- AV_CODEC_ID_SRT,
-
- AV_CODEC_ID_MICRODVD = 0x17800,
- AV_CODEC_ID_EIA_608,
- AV_CODEC_ID_JACOSUB,
- AV_CODEC_ID_SAMI,
- AV_CODEC_ID_REALTEXT,
- AV_CODEC_ID_STL,
- AV_CODEC_ID_SUBVIEWER1,
- AV_CODEC_ID_SUBVIEWER,
- AV_CODEC_ID_SUBRIP,
- AV_CODEC_ID_WEBVTT,
- AV_CODEC_ID_MPL2,
- AV_CODEC_ID_VPLAYER,
- AV_CODEC_ID_PJS,
- AV_CODEC_ID_ASS,
- AV_CODEC_ID_HDMV_TEXT_SUBTITLE,
- AV_CODEC_ID_TTML,
- AV_CODEC_ID_ARIB_CAPTION,
-
- /* other specific kind of codecs (generally used for attachments) */
- AV_CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs.
- AV_CODEC_ID_TTF = 0x18000,
-
- AV_CODEC_ID_SCTE_35, ///< Contain timestamp estimated through PCR of program stream.
- AV_CODEC_ID_BINTEXT = 0x18800,
- AV_CODEC_ID_XBIN,
- AV_CODEC_ID_IDF,
- AV_CODEC_ID_OTF,
- AV_CODEC_ID_SMPTE_KLV,
- AV_CODEC_ID_DVD_NAV,
- AV_CODEC_ID_TIMED_ID3,
- AV_CODEC_ID_BIN_DATA,
-
-
- AV_CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it
-
- AV_CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
- * stream (only used by libavformat) */
- AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems
- * stream (only used by libavformat) */
- AV_CODEC_ID_FFMETADATA = 0x21000, ///< Dummy codec for streams containing only metadata information.
- AV_CODEC_ID_WRAPPED_AVFRAME = 0x21001, ///< Passthrough codec, AVFrames wrapped in AVPacket
-};
-
-/**
- * This struct describes the properties of a single codec described by an
- * AVCodecID.
- * @see avcodec_descriptor_get()
- */
-typedef struct AVCodecDescriptor {
- enum AVCodecID id;
- enum AVMediaType type;
- /**
- * Name of the codec described by this descriptor. It is non-empty and
- * unique for each codec descriptor. It should contain alphanumeric
- * characters and '_' only.
- */
- const char *name;
- /**
- * A more descriptive name for this codec. May be NULL.
- */
- const char *long_name;
- /**
- * Codec properties, a combination of AV_CODEC_PROP_* flags.
- */
- int props;
- /**
- * MIME type(s) associated with the codec.
- * May be NULL; if not, a NULL-terminated array of MIME types.
- * The first item is always non-NULL and is the preferred MIME type.
- */
- const char *const *mime_types;
- /**
- * If non-NULL, an array of profiles recognized for this codec.
- * Terminated with FF_PROFILE_UNKNOWN.
- */
- const struct AVProfile *profiles;
-} AVCodecDescriptor;
-
-/**
- * Codec uses only intra compression.
- * Video and audio codecs only.
- */
-#define AV_CODEC_PROP_INTRA_ONLY (1 << 0)
-/**
- * Codec supports lossy compression. Audio and video codecs only.
- * @note a codec may support both lossy and lossless
- * compression modes
- */
-#define AV_CODEC_PROP_LOSSY (1 << 1)
-/**
- * Codec supports lossless compression. Audio and video codecs only.
- */
-#define AV_CODEC_PROP_LOSSLESS (1 << 2)
-/**
- * Codec supports frame reordering. That is, the coded order (the order in which
- * the encoded packets are output by the encoders / stored / input to the
- * decoders) may be different from the presentation order of the corresponding
- * frames.
- *
- * For codecs that do not have this property set, PTS and DTS should always be
- * equal.
- */
-#define AV_CODEC_PROP_REORDER (1 << 3)
-/**
- * Subtitle codec is bitmap based
- * Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field.
- */
-#define AV_CODEC_PROP_BITMAP_SUB (1 << 16)
-/**
- * Subtitle codec is text based.
- * Decoded AVSubtitle data can be read from the AVSubtitleRect->ass field.
- */
-#define AV_CODEC_PROP_TEXT_SUB (1 << 17)
-
/**
* @ingroup lavc_decoding
* Required number of additionally allocated bytes at the end of the input bitstream for decoding.
* Use qpel MC.
*/
#define AV_CODEC_FLAG_QPEL (1 << 4)
+/**
+ * Don't output frames whose parameters differ from first
+ * decoded frame in stream.
+ */
+#define AV_CODEC_FLAG_DROPCHANGED (1 << 5)
/**
* Use internal 2pass ratecontrol in first pass mode.
*/
* choice for probing.
*/
#define AV_CODEC_CAP_AVOID_PROBING (1 << 17)
+
+#if FF_API_UNUSED_CODEC_CAPS
/**
- * Codec is intra only.
+ * Deprecated and unused. Use AVCodecDescriptor.props instead
*/
#define AV_CODEC_CAP_INTRA_ONLY 0x40000000
/**
- * Codec is lossless.
+ * Deprecated and unused. Use AVCodecDescriptor.props instead
*/
#define AV_CODEC_CAP_LOSSLESS 0x80000000
+#endif
/**
* Codec is backed by a hardware implementation. Typically used to
*/
#define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE (1 << 20)
+/**
+ * This encoder can be flushed using avcodec_flush_buffers(). If this flag is
+ * not set, the encoder must be closed and reopened to ensure that no frames
+ * remain pending.
+ */
+#define AV_CODEC_CAP_ENCODER_FLUSH (1 << 21)
+
+/* Exported side data.
+ These flags can be passed in AVCodecContext.export_side_data before initialization.
+*/
+/**
+ * Export motion vectors through frame side data
+ */
+#define AV_CODEC_EXPORT_DATA_MVS (1 << 0)
+/**
+ * Export encoder Producer Reference Time through packet side data
+ */
+#define AV_CODEC_EXPORT_DATA_PRFT (1 << 1)
+/**
+ * Decoding only.
+ * Export the AVVideoEncParams structure through frame side data.
+ */
+#define AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS (1 << 2)
+
/**
* Pan Scan area.
* This specifies the area which should be displayed.
} AVCPBProperties;
/**
- * The decoder will keep a reference to the frame and may reuse it later.
- */
-#define AV_GET_BUFFER_FLAG_REF (1 << 0)
-
-/**
- * @defgroup lavc_packet AVPacket
- *
- * Types and functions for working with AVPacket.
- * @{
- */
-enum AVPacketSideDataType {
- /**
- * An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE
- * bytes worth of palette. This side data signals that a new palette is
- * present.
- */
- AV_PKT_DATA_PALETTE,
-
- /**
- * The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format
- * that the extradata buffer was changed and the receiving side should
- * act upon it appropriately. The new extradata is embedded in the side
- * data buffer and should be immediately used for processing the current
- * frame or packet.
- */
- AV_PKT_DATA_NEW_EXTRADATA,
-
- /**
- * An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
- * @code
- * u32le param_flags
- * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT)
- * s32le channel_count
- * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT)
- * u64le channel_layout
- * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE)
- * s32le sample_rate
- * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS)
- * s32le width
- * s32le height
- * @endcode
- */
- AV_PKT_DATA_PARAM_CHANGE,
-
- /**
- * An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of
- * structures with info about macroblocks relevant to splitting the
- * packet into smaller packets on macroblock edges (e.g. as for RFC 2190).
- * That is, it does not necessarily contain info about all macroblocks,
- * as long as the distance between macroblocks in the info is smaller
- * than the target payload size.
- * Each MB info structure is 12 bytes, and is laid out as follows:
- * @code
- * u32le bit offset from the start of the packet
- * u8 current quantizer at the start of the macroblock
- * u8 GOB number
- * u16le macroblock address within the GOB
- * u8 horizontal MV predictor
- * u8 vertical MV predictor
- * u8 horizontal MV predictor for block number 3
- * u8 vertical MV predictor for block number 3
- * @endcode
- */
- AV_PKT_DATA_H263_MB_INFO,
-
- /**
- * This side data should be associated with an audio stream and contains
- * ReplayGain information in form of the AVReplayGain struct.
- */
- AV_PKT_DATA_REPLAYGAIN,
-
- /**
- * This side data contains a 3x3 transformation matrix describing an affine
- * transformation that needs to be applied to the decoded video frames for
- * correct presentation.
- *
- * See libavutil/display.h for a detailed description of the data.
- */
- AV_PKT_DATA_DISPLAYMATRIX,
-
- /**
- * This side data should be associated with a video stream and contains
- * Stereoscopic 3D information in form of the AVStereo3D struct.
- */
- AV_PKT_DATA_STEREO3D,
-
- /**
- * This side data should be associated with an audio stream and corresponds
- * to enum AVAudioServiceType.
- */
- AV_PKT_DATA_AUDIO_SERVICE_TYPE,
-
- /**
- * This side data contains quality related information from the encoder.
- * @code
- * u32le quality factor of the compressed frame. Allowed range is between 1 (good) and FF_LAMBDA_MAX (bad).
- * u8 picture type
- * u8 error count
- * u16 reserved
- * u64le[error count] sum of squared differences between encoder in and output
- * @endcode
- */
- AV_PKT_DATA_QUALITY_STATS,
-
- /**
- * This side data contains an integer value representing the stream index
- * of a "fallback" track. A fallback track indicates an alternate
- * track to use when the current track can not be decoded for some reason.
- * e.g. no decoder available for codec.
- */
- AV_PKT_DATA_FALLBACK_TRACK,
-
- /**
- * This side data corresponds to the AVCPBProperties struct.
- */
- AV_PKT_DATA_CPB_PROPERTIES,
-
- /**
- * Recommmends skipping the specified number of samples
- * @code
- * u32le number of samples to skip from start of this packet
- * u32le number of samples to skip from end of this packet
- * u8 reason for start skip
- * u8 reason for end skip (0=padding silence, 1=convergence)
- * @endcode
- */
- AV_PKT_DATA_SKIP_SAMPLES,
-
- /**
- * An AV_PKT_DATA_JP_DUALMONO side data packet indicates that
- * the packet may contain "dual mono" audio specific to Japanese DTV
- * and if it is true, recommends only the selected channel to be used.
- * @code
- * u8 selected channels (0=mail/left, 1=sub/right, 2=both)
- * @endcode
- */
- AV_PKT_DATA_JP_DUALMONO,
-
- /**
- * A list of zero terminated key/value strings. There is no end marker for
- * the list, so it is required to rely on the side data size to stop.
- */
- AV_PKT_DATA_STRINGS_METADATA,
-
- /**
- * Subtitle event position
- * @code
- * u32le x1
- * u32le y1
- * u32le x2
- * u32le y2
- * @endcode
- */
- AV_PKT_DATA_SUBTITLE_POSITION,
-
- /**
- * Data found in BlockAdditional element of matroska container. There is
- * no end marker for the data, so it is required to rely on the side data
- * size to recognize the end. 8 byte id (as found in BlockAddId) followed
- * by data.
- */
- AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
-
- /**
- * The optional first identifier line of a WebVTT cue.
- */
- AV_PKT_DATA_WEBVTT_IDENTIFIER,
-
- /**
- * The optional settings (rendering instructions) that immediately
- * follow the timestamp specifier of a WebVTT cue.
- */
- AV_PKT_DATA_WEBVTT_SETTINGS,
-
- /**
- * A list of zero terminated key/value strings. There is no end marker for
- * the list, so it is required to rely on the side data size to stop. This
- * side data includes updated metadata which appeared in the stream.
- */
- AV_PKT_DATA_METADATA_UPDATE,
-
- /**
- * MPEGTS stream ID as uint8_t, this is required to pass the stream ID
- * information from the demuxer to the corresponding muxer.
- */
- AV_PKT_DATA_MPEGTS_STREAM_ID,
-
- /**
- * Mastering display metadata (based on SMPTE-2086:2014). This metadata
- * should be associated with a video stream and contains data in the form
- * of the AVMasteringDisplayMetadata struct.
- */
- AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
-
- /**
- * This side data should be associated with a video stream and corresponds
- * to the AVSphericalMapping structure.
- */
- AV_PKT_DATA_SPHERICAL,
-
- /**
- * Content light level (based on CTA-861.3). This metadata should be
- * associated with a video stream and contains data in the form of the
- * AVContentLightMetadata struct.
- */
- AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
-
- /**
- * ATSC A53 Part 4 Closed Captions. This metadata should be associated with
- * a video stream. A53 CC bitstream is stored as uint8_t in AVPacketSideData.data.
- * The number of bytes of CC data is AVPacketSideData.size.
- */
- AV_PKT_DATA_A53_CC,
-
- /**
- * This side data is encryption initialization data.
- * The format is not part of ABI, use av_encryption_init_info_* methods to
- * access.
- */
- AV_PKT_DATA_ENCRYPTION_INIT_INFO,
-
- /**
- * This side data contains encryption info for how to decrypt the packet.
- * The format is not part of ABI, use av_encryption_info_* methods to access.
- */
- AV_PKT_DATA_ENCRYPTION_INFO,
-
- /**
- * Active Format Description data consisting of a single byte as specified
- * in ETSI TS 101 154 using AVActiveFormatDescription enum.
- */
- AV_PKT_DATA_AFD,
-
- /**
- * The number of side data types.
- * This is not part of the public API/ABI in the sense that it may
- * change when new side data types are added.
- * This must stay the last enum value.
- * If its value becomes huge, some code using it
- * needs to be updated as it assumes it to be smaller than other limits.
- */
- AV_PKT_DATA_NB
-};
-
-#define AV_PKT_DATA_QUALITY_FACTOR AV_PKT_DATA_QUALITY_STATS //DEPRECATED
-
-typedef struct AVPacketSideData {
- uint8_t *data;
- int size;
- enum AVPacketSideDataType type;
-} AVPacketSideData;
-
-/**
- * This structure stores compressed data. It is typically exported by demuxers
- * and then passed as input to decoders, or received as output from encoders and
- * then passed to muxers.
- *
- * For video, it should typically contain one compressed frame. For audio it may
- * contain several compressed frames. Encoders are allowed to output empty
- * packets, with no compressed data, containing only side data
- * (e.g. to update some stream parameters at the end of encoding).
- *
- * AVPacket is one of the few structs in FFmpeg, whose size is a part of public
- * ABI. Thus it may be allocated on stack and no new fields can be added to it
- * without libavcodec and libavformat major bump.
- *
- * The semantics of data ownership depends on the buf field.
- * If it is set, the packet data is dynamically allocated and is
- * valid indefinitely until a call to av_packet_unref() reduces the
- * reference count to 0.
- *
- * If the buf field is not set av_packet_ref() would make a copy instead
- * of increasing the reference count.
- *
- * The side data is always allocated with av_malloc(), copied by
- * av_packet_ref() and freed by av_packet_unref().
- *
- * @see av_packet_ref
- * @see av_packet_unref
+ * This structure supplies correlation between a packet timestamp and a wall clock
+ * production time. The definition follows the Producer Reference Time ('prft')
+ * as defined in ISO/IEC 14496-12
*/
-typedef struct AVPacket {
- /**
- * A reference to the reference-counted buffer where the packet data is
- * stored.
- * May be NULL, then the packet data is not reference-counted.
- */
- AVBufferRef *buf;
- /**
- * 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;
+typedef struct AVProducerReferenceTime {
/**
- * A combination of AV_PKT_FLAG values
+ * A UTC timestamp, in microseconds, since Unix epoch (e.g, av_gettime()).
*/
- int flags;
- /**
- * Additional packet data that can be provided by the container.
- * Packet can contain several types of side information.
- */
- AVPacketSideData *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.
- */
- int64_t duration;
-
- int64_t pos; ///< byte position in stream, -1 if unknown
-
-#if FF_API_CONVERGENCE_DURATION
- /**
- * @deprecated Same as the duration field, but as int64_t. This was required
- * for Matroska subtitles, whose duration values could overflow when the
- * duration field was still an int.
- */
- attribute_deprecated
- int64_t convergence_duration;
-#endif
-} AVPacket;
-#define AV_PKT_FLAG_KEY 0x0001 ///< The packet contains a keyframe
-#define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted
-/**
- * Flag is used to discard packets which are required to maintain valid
- * decoder state but are not required for output and should be dropped
- * after decoding.
- **/
-#define AV_PKT_FLAG_DISCARD 0x0004
-/**
- * The packet comes from a trusted source.
- *
- * Otherwise-unsafe constructs such as arbitrary pointers to data
- * outside the packet may be followed.
- */
-#define AV_PKT_FLAG_TRUSTED 0x0008
-/**
- * Flag is used to indicate packets that contain frames that can
- * be discarded by the decoder. I.e. Non-reference frames.
- */
-#define AV_PKT_FLAG_DISPOSABLE 0x0010
-
+ int64_t wallclock;
+ int flags;
+} AVProducerReferenceTime;
-enum AVSideDataParamChangeFlags {
- AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT = 0x0001,
- AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT = 0x0002,
- AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE = 0x0004,
- AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS = 0x0008,
-};
/**
- * @}
+ * The decoder will keep a reference to the frame and may reuse it later.
*/
+#define AV_GET_BUFFER_FLAG_REF (1 << 0)
struct AVCodecInternal;
-enum AVFieldOrder {
- AV_FIELD_UNKNOWN,
- AV_FIELD_PROGRESSIVE,
- AV_FIELD_TT, //< Top coded_first, top displayed first
- AV_FIELD_BB, //< Bottom coded first, bottom displayed first
- AV_FIELD_TB, //< Top coded first, bottom displayed first
- AV_FIELD_BT, //< Bottom coded first, top displayed first
-};
-
/**
* main external API structure.
* New fields can be added to the end with minor version bumps.
/**
* custom intra quantization matrix
- * - encoding: Set by user, can be NULL.
- * - decoding: Set by libavcodec.
+ * Must be allocated with the av_malloc() family of functions, and will be freed in
+ * avcodec_free_context().
+ * - encoding: Set/allocated by user, freed by libavcodec. Can be NULL.
+ * - decoding: Set/allocated/freed by libavcodec.
*/
uint16_t *intra_matrix;
/**
* custom inter quantization matrix
- * - encoding: Set by user, can be NULL.
- * - decoding: Set by libavcodec.
+ * Must be allocated with the av_malloc() family of functions, and will be freed in
+ * avcodec_free_context().
+ * - encoding: Set/allocated by user, freed by libavcodec. Can be NULL.
+ * - decoding: Set/allocated/freed by libavcodec.
*/
uint16_t *inter_matrix;
* - encoding: unused
*/
int discard_damaged_percentage;
+
+ /**
+ * The number of samples per frame to maximally accept.
+ *
+ * - decoding: set by user
+ * - encoding: set by user
+ */
+ int64_t max_samples;
+
+ /**
+ * Bit set of AV_CODEC_EXPORT_DATA_* flags, which affects the kind of
+ * metadata exported in frame, packet, or coded stream side data by
+ * decoders and encoders.
+ *
+ * - decoding: set by user
+ * - encoding: set by user
+ */
+ int export_side_data;
} AVCodecContext;
#if FF_API_CODEC_GET_SET
* AVCodecContext.hw_frames_ctx should be set to a suitable frames
* context inside the get_format() callback. The frames context
* must have been created on a device of the specified type.
+ *
+ * When selecting this format for an encoder,
+ * AVCodecContext.hw_frames_ctx should be set to the context which
+ * will be used for the input frames before calling avcodec_open2().
*/
AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX = 0x02,
/**
typedef struct AVCodecHWConfig {
/**
- * A hardware pixel format which the codec can use.
+ * For decoders, a hardware pixel format which that decoder may be
+ * able to decode to if suitable hardware is available.
+ *
+ * For encoders, a pixel format which the encoder may be able to
+ * accept. If set to AV_PIX_FMT_NONE, this applies to all pixel
+ * formats supported by the codec.
*/
enum AVPixelFormat pix_fmt;
/**
* @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
* The user can only access this field via avcodec_get_hw_config().
*/
const struct AVCodecHWConfigInternal **hw_configs;
+
+ /**
+ * List of supported codec_tags, terminated by FF_CODEC_TAGS_END.
+ */
+ const uint32_t *codec_tags;
} AVCodec;
#if FF_API_CODEC_GET_SET
} AVSubtitle;
/**
- * This struct describes the properties of an encoded stream.
+ * Iterate over all registered codecs.
+ *
+ * @param opaque a pointer where libavcodec will store the iteration state. Must
+ * point to NULL to start the iteration.
*
- * sizeof(AVCodecParameters) is not a part of the public ABI, this struct must
- * be allocated with avcodec_parameters_alloc() and freed with
- * avcodec_parameters_free().
+ * @return the next registered codec or NULL when the iteration is
+ * finished
*/
-typedef struct AVCodecParameters {
- /**
- * General type of the encoded data.
- */
- enum AVMediaType codec_type;
- /**
- * Specific type of the encoded data (the codec used).
- */
- enum AVCodecID codec_id;
- /**
- * Additional information about the codec (corresponds to the AVI FOURCC).
- */
- uint32_t codec_tag;
+const AVCodec *av_codec_iterate(void **opaque);
- /**
- * Extra binary data needed for initializing the decoder, codec-dependent.
- *
- * Must be allocated with av_malloc() and will be freed by
- * avcodec_parameters_free(). The allocated size of extradata must be at
- * least extradata_size + AV_INPUT_BUFFER_PADDING_SIZE, with the padding
- * bytes zeroed.
- */
- uint8_t *extradata;
- /**
- * Size of the extradata content in bytes.
- */
- int extradata_size;
+#if FF_API_NEXT
+/**
+ * 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.
+ */
+attribute_deprecated
+AVCodec *av_codec_next(const AVCodec *c);
+#endif
- /**
- * - video: the pixel format, the value corresponds to enum AVPixelFormat.
- * - audio: the sample format, the value corresponds to enum AVSampleFormat.
- */
- int format;
+/**
+ * Return the LIBAVCODEC_VERSION_INT constant.
+ */
+unsigned avcodec_version(void);
- /**
- * The average bitrate of the encoded data (in bits per second).
- */
- int64_t bit_rate;
-
- /**
- * The number of bits per sample in the codedwords.
- *
- * This is basically the bitrate per sample. It is mandatory for a bunch of
- * formats to actually decode them. It's the number of bits for one sample in
- * the actual coded bitstream.
- *
- * This could be for example 4 for ADPCM
- * For PCM formats this matches bits_per_raw_sample
- * Can be 0
- */
- int bits_per_coded_sample;
-
- /**
- * This is the number of valid bits in each output sample. If the
- * sample format has more bits, the least significant bits are additional
- * padding bits, which are always 0. Use right shifts to reduce the sample
- * to its actual size. For example, audio formats with 24 bit samples will
- * have bits_per_raw_sample set to 24, and format set to AV_SAMPLE_FMT_S32.
- * To get the original sample use "(int32_t)sample >> 8"."
- *
- * For ADPCM this might be 12 or 16 or similar
- * Can be 0
- */
- int bits_per_raw_sample;
-
- /**
- * Codec-specific bitstream restrictions that the stream conforms to.
- */
- int profile;
- int level;
-
- /**
- * Video only. The dimensions of the video frame in pixels.
- */
- int width;
- int height;
-
- /**
- * Video only. The aspect ratio (width / height) which a single pixel
- * should have when displayed.
- *
- * When the aspect ratio is unknown / undefined, the numerator should be
- * set to 0 (the denominator may have any value).
- */
- AVRational sample_aspect_ratio;
-
- /**
- * Video only. The order of the fields in interlaced video.
- */
- enum AVFieldOrder field_order;
-
- /**
- * Video only. Additional colorspace characteristics.
- */
- enum AVColorRange color_range;
- enum AVColorPrimaries color_primaries;
- enum AVColorTransferCharacteristic color_trc;
- enum AVColorSpace color_space;
- enum AVChromaLocation chroma_location;
-
- /**
- * Video only. Number of delayed frames.
- */
- int video_delay;
-
- /**
- * Audio only. The channel layout bitmask. May be 0 if the channel layout is
- * unknown or unspecified, otherwise the number of bits set must be equal to
- * the channels field.
- */
- uint64_t channel_layout;
- /**
- * Audio only. The number of audio channels.
- */
- int channels;
- /**
- * Audio only. The number of audio samples per second.
- */
- int sample_rate;
- /**
- * Audio only. The number of bytes per coded audio frame, required by some
- * formats.
- *
- * Corresponds to nBlockAlign in WAVEFORMATEX.
- */
- int block_align;
- /**
- * Audio only. Audio frame size, if known. Required by some formats to be static.
- */
- int frame_size;
-
- /**
- * Audio only. The amount of padding (in samples) inserted by the encoder at
- * the beginning of the audio. I.e. this number of leading decoded samples
- * must be discarded by the caller to get the original audio without leading
- * padding.
- */
- int initial_padding;
- /**
- * Audio only. The amount of padding (in samples) appended by the encoder to
- * the end of the audio. I.e. this number of decoded samples must be
- * discarded by the caller from the end of the stream to get the original
- * audio without any trailing padding.
- */
- int trailing_padding;
- /**
- * Audio only. Number of samples to skip after a discontinuity.
- */
- int seek_preroll;
-} AVCodecParameters;
-
-/**
- * Iterate over all registered codecs.
- *
- * @param opaque a pointer where libavcodec will store the iteration state. Must
- * point to NULL to start the iteration.
- *
- * @return the next registered codec or NULL when the iteration is
- * finished
- */
-const AVCodec *av_codec_iterate(void **opaque);
-
-#if FF_API_NEXT
-/**
- * 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.
- */
-attribute_deprecated
-AVCodec *av_codec_next(const AVCodec *c);
-#endif
-
-/**
- * Return the LIBAVCODEC_VERSION_INT constant.
- */
-unsigned avcodec_version(void);
-
-/**
- * Return the libavcodec build-time configuration.
- */
-const char *avcodec_configuration(void);
+/**
+ * Return the libavcodec build-time configuration.
+ */
+const char *avcodec_configuration(void);
/**
* Return the libavcodec license.
int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src);
#endif
-/**
- * Allocate a new AVCodecParameters and set its fields to default values
- * (unknown/invalid/0). The returned struct must be freed with
- * avcodec_parameters_free().
- */
-AVCodecParameters *avcodec_parameters_alloc(void);
-
-/**
- * Free an AVCodecParameters instance and everything associated with it and
- * write NULL to the supplied pointer.
- */
-void avcodec_parameters_free(AVCodecParameters **par);
-
-/**
- * Copy the contents of src to dst. Any allocated fields in dst are freed and
- * replaced with newly allocated duplicates of the corresponding fields in src.
- *
- * @return >= 0 on success, a negative AVERROR code on failure.
- */
-int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src);
-
/**
* Fill the parameters struct based on the values from the supplied codec
* context. Any allocated fields in par are freed and replaced with duplicates
*/
void avsubtitle_free(AVSubtitle *sub);
-/**
- * @}
- */
-
-/**
- * @addtogroup lavc_packet
- * @{
- */
-
-/**
- * Allocate an AVPacket and set its fields to default values. The resulting
- * struct must be freed using av_packet_free().
- *
- * @return An AVPacket filled with default values or NULL on failure.
- *
- * @note this only allocates the AVPacket itself, not the data buffers. Those
- * must be allocated through other means such as av_new_packet.
- *
- * @see av_new_packet
- */
-AVPacket *av_packet_alloc(void);
-
-/**
- * Create a new packet that references the same data as src.
- *
- * This is a shortcut for av_packet_alloc()+av_packet_ref().
- *
- * @return newly created AVPacket on success, NULL on error.
- *
- * @see av_packet_alloc
- * @see av_packet_ref
- */
-AVPacket *av_packet_clone(const AVPacket *src);
-
-/**
- * Free the packet, if the packet is reference counted, it will be
- * unreferenced first.
- *
- * @param pkt packet to be freed. The pointer will be set to NULL.
- * @note passing NULL is a no-op.
- */
-void av_packet_free(AVPacket **pkt);
-
-/**
- * Initialize optional fields of a packet with default values.
- *
- * Note, this does not touch the data and size members, which have to be
- * initialized separately.
- *
- * @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);
-
-/**
- * Initialize a reference-counted packet from av_malloc()ed data.
- *
- * @param pkt packet to be initialized. This function will set the data, size,
- * buf and destruct fields, all others are left untouched.
- * @param data Data allocated by av_malloc() to be used as packet data. If this
- * function returns successfully, the data is owned by the underlying AVBuffer.
- * The caller may not access the data through other means.
- * @param size size of data in bytes, without the padding. I.e. the full buffer
- * size is assumed to be size + AV_INPUT_BUFFER_PADDING_SIZE.
- *
- * @return 0 on success, a negative AVERROR on error
- */
-int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size);
-
-#if FF_API_AVPACKET_OLD_API
-/**
- * @warning This is a hack - the packet memory allocation stuff is broken. The
- * packet is allocated if it was not really allocated.
- *
- * @deprecated Use av_packet_ref or av_packet_make_refcounted
- */
-attribute_deprecated
-int av_dup_packet(AVPacket *pkt);
-/**
- * Copy packet, including contents
- *
- * @return 0 on success, negative AVERROR on fail
- *
- * @deprecated Use av_packet_ref
- */
-attribute_deprecated
-int av_copy_packet(AVPacket *dst, const AVPacket *src);
-
-/**
- * Copy packet side data
- *
- * @return 0 on success, negative AVERROR on fail
- *
- * @deprecated Use av_packet_copy_props
- */
-attribute_deprecated
-int av_copy_packet_side_data(AVPacket *dst, const AVPacket *src);
-
-/**
- * Free a packet.
- *
- * @deprecated Use av_packet_unref
- *
- * @param pkt packet to free
- */
-attribute_deprecated
-void av_free_packet(AVPacket *pkt);
-#endif
-/**
- * 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);
-
-/**
- * Wrap an existing array as a packet side data.
- *
- * @param pkt packet
- * @param type side information type
- * @param data the side data array. It must be allocated with the av_malloc()
- * family of functions. The ownership of the data is transferred to
- * pkt.
- * @param size side information size
- * @return a non-negative number on success, a negative AVERROR code on
- * failure. On failure, the packet is unchanged and the data remains
- * owned by the caller.
- */
-int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
- uint8_t *data, size_t size);
-
-/**
- * Shrink the already allocated side data buffer
- *
- * @param pkt packet
- * @param type side information type
- * @param size new side information size
- * @return 0 on success, < 0 on failure
- */
-int av_packet_shrink_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(const AVPacket *pkt, enum AVPacketSideDataType type,
- int *size);
-
-#if FF_API_MERGE_SD_API
-attribute_deprecated
-int av_packet_merge_side_data(AVPacket *pkt);
-
-attribute_deprecated
-int av_packet_split_side_data(AVPacket *pkt);
-#endif
-
-const char *av_packet_side_data_name(enum AVPacketSideDataType type);
-
-/**
- * Pack a dictionary for use in side_data.
- *
- * @param dict The dictionary to pack.
- * @param size pointer to store the size of the returned data
- * @return pointer to data if successful, NULL otherwise
- */
-uint8_t *av_packet_pack_dictionary(AVDictionary *dict, int *size);
-/**
- * Unpack a dictionary from side_data.
- *
- * @param data data from side_data
- * @param size size of the data
- * @param dict the metadata storage dictionary
- * @return 0 on success, < 0 on failure
- */
-int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict);
-
-
-/**
- * Convenience function to free all the side data stored.
- * All the other fields stay untouched.
- *
- * @param pkt packet
- */
-void av_packet_free_side_data(AVPacket *pkt);
-
-/**
- * Setup a new reference to the data described by a given packet
- *
- * If src is reference-counted, setup dst as a new reference to the
- * buffer in src. Otherwise allocate a new buffer in dst and copy the
- * data from src into it.
- *
- * All the other fields are copied from src.
- *
- * @see av_packet_unref
- *
- * @param dst Destination packet
- * @param src Source packet
- *
- * @return 0 on success, a negative AVERROR on error.
- */
-int av_packet_ref(AVPacket *dst, const AVPacket *src);
-
-/**
- * Wipe the packet.
- *
- * Unreference the buffer referenced by the packet and reset the
- * remaining packet fields to their default values.
- *
- * @param pkt The packet to be unreferenced.
- */
-void av_packet_unref(AVPacket *pkt);
-
-/**
- * Move every field in src to dst and reset src.
- *
- * @see av_packet_unref
- *
- * @param src Source packet, will be reset
- * @param dst Destination packet
- */
-void av_packet_move_ref(AVPacket *dst, AVPacket *src);
-
-/**
- * Copy only "properties" fields from src to dst.
- *
- * Properties for the purpose of this function are all the fields
- * beside those related to the packet data (buf, data, size)
- *
- * @param dst Destination packet
- * @param src Source packet
- *
- * @return 0 on success AVERROR on failure.
- */
-int av_packet_copy_props(AVPacket *dst, const AVPacket *src);
-
-/**
- * Ensure the data described by a given packet is reference counted.
- *
- * @note This function does not ensure that the reference will be writable.
- * Use av_packet_make_writable instead for that purpose.
- *
- * @see av_packet_ref
- * @see av_packet_make_writable
- *
- * @param pkt packet whose data should be made reference counted.
- *
- * @return 0 on success, a negative AVERROR on error. On failure, the
- * packet is unchanged.
- */
-int av_packet_make_refcounted(AVPacket *pkt);
-
-/**
- * Create a writable reference for the data described by a given packet,
- * avoiding data copy if possible.
- *
- * @param pkt Packet whose data should be made writable.
- *
- * @return 0 on success, a negative AVERROR on failure. On failure, the
- * packet is unchanged.
- */
-int av_packet_make_writable(AVPacket *pkt);
-
-/**
- * Convert valid timing fields (timestamps / durations) in a packet from one
- * timebase to another. Timestamps with unknown values (AV_NOPTS_VALUE) will be
- * ignored.
- *
- * @param pkt packet on which the conversion will be performed
- * @param tb_src source timebase, in which the timing fields in pkt are
- * expressed
- * @param tb_dst destination timebase, to which the timing fields will be
- * converted
- */
-void av_packet_rescale_ts(AVPacket *pkt, AVRational tb_src, AVRational tb_dst);
-
/**
* @}
*/
* If no subtitle could be decompressed, got_sub_ptr is zero.
* Otherwise, the subtitle is stored in *sub.
* Note that AV_CODEC_CAP_DR1 is not available for subtitle codecs. This is for
- * simplicity, because the performance difference is expect to be negligible
+ * simplicity, because the performance difference is expected to be negligible
* and reusing a get_buffer written for video codecs would probably perform badly
* due to a potentially very different allocation pattern.
*
* before packets may be fed to the decoder.
*
* @param avctx the codec context
- * @param[out] sub The Preallocated AVSubtitle in which the decoded subtitle will be stored,
+ * @param[out] sub The preallocated 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.
* AVERROR_EOF: the decoder has been fully flushed, and there will be
* no more output frames
* AVERROR(EINVAL): codec not opened, or it is an encoder
+ * AVERROR_INPUT_CHANGED: current decoded frame has changed parameters
+ * with respect to first decoded frame. Applicable
+ * when flag AV_CODEC_FLAG_DROPCHANGED is set.
* other negative values: legitimate decoding errors
*/
int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame);
* AVERROR(EINVAL): codec not opened, refcounted_frames not set, it is a
* decoder, or requires flush
* AVERROR(ENOMEM): failed to add packet to internal queue, or similar
- * other errors: legitimate decoding errors
+ * other errors: legitimate encoding errors
*/
int avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame);
* @param avctx codec context
* @param avpkt This will be set to a reference-counted packet allocated by the
* encoder. Note that the function will always call
- * av_frame_unref(frame) before doing anything else.
+ * av_packet_unref(avpkt) before doing anything else.
* @return 0 on success, otherwise negative error code:
* AVERROR(EAGAIN): output is not available in the current state - user
* must try to send input
* AVERROR_EOF: the encoder has been fully flushed, and there will be
* no more output packets
- * AVERROR(EINVAL): codec not opened, or it is an encoder
- * other errors: legitimate decoding errors
+ * AVERROR(EINVAL): codec not opened, or it is a decoder
+ * other errors: legitimate encoding errors
*/
int avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt);
int buf_size, int align);
/**
- * Reset the internal decoder state / flush internal buffers. Should be called
+ * Reset the internal codec state / flush internal buffers. Should be called
* e.g. when seeking or when switching to a different stream.
*
- * @note when refcounted frames are not used (i.e. avctx->refcounted_frames is 0),
- * this invalidates the frames previously returned from the decoder. When
- * refcounted frames are used, the decoder just releases any references it might
- * keep internally, but the caller's reference remains valid.
+ * @note for decoders, when refcounted frames are not used
+ * (i.e. avctx->refcounted_frames is 0), this invalidates the frames previously
+ * returned from the decoder. When refcounted frames are used, the decoder just
+ * releases any references it might keep internally, but the caller's reference
+ * remains valid.
+ *
+ * @note for encoders, this function will only do something if the encoder
+ * declares support for AV_CODEC_CAP_ENCODER_FLUSH. When called, the encoder
+ * will drain any remaining packets, and can then be re-used for a different
+ * stream (as opposed to sending a null frame which will leave the encoder
+ * in a permanent EOF state after draining). This can be desirable if the
+ * cost of tearing down and replacing the encoder instance is high.
*/
void avcodec_flush_buffers(AVCodecContext *avctx);
*/
char *args;
} AVBitStreamFilterContext;
-#endif
-
-typedef struct AVBSFInternal AVBSFInternal;
-
-/**
- * The bitstream filter state.
- *
- * This struct must be allocated with av_bsf_alloc() and freed with
- * av_bsf_free().
- *
- * The fields in the struct will only be changed (by the caller or by the
- * filter) as described in their documentation, and are to be considered
- * immutable otherwise.
- */
-typedef struct AVBSFContext {
- /**
- * A class for logging and AVOptions
- */
- const AVClass *av_class;
-
- /**
- * The bitstream filter this context is an instance of.
- */
- const struct AVBitStreamFilter *filter;
-
- /**
- * Opaque libavcodec internal data. Must not be touched by the caller in any
- * way.
- */
- AVBSFInternal *internal;
-
- /**
- * Opaque filter-specific private data. If filter->priv_class is non-NULL,
- * this is an AVOptions-enabled struct.
- */
- void *priv_data;
-
- /**
- * Parameters of the input stream. This field is allocated in
- * av_bsf_alloc(), it needs to be filled by the caller before
- * av_bsf_init().
- */
- AVCodecParameters *par_in;
-
- /**
- * Parameters of the output stream. This field is allocated in
- * av_bsf_alloc(), it is set by the filter in av_bsf_init().
- */
- AVCodecParameters *par_out;
-
- /**
- * The timebase used for the timestamps of the input packets. Set by the
- * caller before av_bsf_init().
- */
- AVRational time_base_in;
-
- /**
- * The timebase used for the timestamps of the output packets. Set by the
- * filter in av_bsf_init().
- */
- AVRational time_base_out;
-} AVBSFContext;
-
-typedef struct AVBitStreamFilter {
- const char *name;
-
- /**
- * A list of codec ids supported by the filter, terminated by
- * AV_CODEC_ID_NONE.
- * May be NULL, in that case the bitstream filter works with any codec id.
- */
- const enum AVCodecID *codec_ids;
-
- /**
- * A class for the private data, used to declare bitstream filter private
- * AVOptions. This field is NULL for bitstream filters that do not declare
- * any options.
- *
- * If this field is non-NULL, the first member of the filter private data
- * must be a pointer to AVClass, which will be set by libavcodec generic
- * code to this class.
- */
- const AVClass *priv_class;
-
- /*****************************************************************
- * No fields below this line are part of the public API. They
- * may not be used outside of libavcodec and can be changed and
- * removed at will.
- * New public fields should be added right above.
- *****************************************************************
- */
- int priv_data_size;
- int (*init)(AVBSFContext *ctx);
- int (*filter)(AVBSFContext *ctx, AVPacket *pkt);
- void (*close)(AVBSFContext *ctx);
- void (*flush)(AVBSFContext *ctx);
-} AVBitStreamFilter;
-
-#if FF_API_OLD_BSF
/**
* @deprecated the old bitstream filtering API (using AVBitStreamFilterContext)
* is deprecated. Use the new bitstream filtering API (using AVBSFContext).
const AVBitStreamFilter *av_bitstream_filter_next(const AVBitStreamFilter *f);
#endif
-/**
- * @return a bitstream filter with the specified name or NULL if no such
- * bitstream filter exists.
- */
-const AVBitStreamFilter *av_bsf_get_by_name(const char *name);
-
-/**
- * Iterate over all registered bitstream filters.
- *
- * @param opaque a pointer where libavcodec will store the iteration state. Must
- * point to NULL to start the iteration.
- *
- * @return the next registered bitstream filter or NULL when the iteration is
- * finished
- */
-const AVBitStreamFilter *av_bsf_iterate(void **opaque);
#if FF_API_NEXT
attribute_deprecated
const AVBitStreamFilter *av_bsf_next(void **opaque);
#endif
-/**
- * Allocate a context for a given bitstream filter. The caller must fill in the
- * context parameters as described in the documentation and then call
- * av_bsf_init() before sending any data to the filter.
- *
- * @param filter the filter for which to allocate an instance.
- * @param ctx a pointer into which the pointer to the newly-allocated context
- * will be written. It must be freed with av_bsf_free() after the
- * filtering is done.
- *
- * @return 0 on success, a negative AVERROR code on failure
- */
-int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **ctx);
-
-/**
- * Prepare the filter for use, after all the parameters and options have been
- * set.
- */
-int av_bsf_init(AVBSFContext *ctx);
-
-/**
- * Submit a packet for filtering.
- *
- * After sending each packet, the filter must be completely drained by calling
- * av_bsf_receive_packet() repeatedly until it returns AVERROR(EAGAIN) or
- * AVERROR_EOF.
- *
- * @param pkt the packet to filter. The bitstream filter will take ownership of
- * the packet and reset the contents of pkt. pkt is not touched if an error occurs.
- * This parameter may be NULL, which signals the end of the stream (i.e. no more
- * packets will be sent). That will cause the filter to output any packets it
- * may have buffered internally.
- *
- * @return 0 on success, a negative AVERROR on error.
- */
-int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt);
-
-/**
- * Retrieve a filtered packet.
- *
- * @param[out] pkt this struct will be filled with the contents of the filtered
- * packet. It is owned by the caller and must be freed using
- * av_packet_unref() when it is no longer needed.
- * This parameter should be "clean" (i.e. freshly allocated
- * with av_packet_alloc() or unreffed with av_packet_unref())
- * when this function is called. If this function returns
- * successfully, the contents of pkt will be completely
- * overwritten by the returned data. On failure, pkt is not
- * touched.
- *
- * @return 0 on success. AVERROR(EAGAIN) if more packets need to be sent to the
- * filter (using av_bsf_send_packet()) to get more output. AVERROR_EOF if there
- * will be no further output from the filter. Another negative AVERROR value if
- * an error occurs.
- *
- * @note one input packet may result in several output packets, so after sending
- * a packet with av_bsf_send_packet(), this function needs to be called
- * repeatedly until it stops returning 0. It is also possible for a filter to
- * output fewer packets than were sent to it, so this function may return
- * AVERROR(EAGAIN) immediately after a successful av_bsf_send_packet() call.
- */
-int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt);
-
-/**
- * Reset the internal bitstream filter state / flush internal buffers.
- */
-void av_bsf_flush(AVBSFContext *ctx);
-
-/**
- * Free a bitstream filter context and everything associated with it; write NULL
- * into the supplied pointer.
- */
-void av_bsf_free(AVBSFContext **ctx);
-
-/**
- * Get the AVClass for AVBSFContext. It can be used in combination with
- * AV_OPT_SEARCH_FAKE_OBJ for examining options.
- *
- * @see av_opt_find().
- */
-const AVClass *av_bsf_get_class(void);
-
-/**
- * Structure for chain/list of bitstream filters.
- * Empty list can be allocated by av_bsf_list_alloc().
- */
-typedef struct AVBSFList AVBSFList;
-
-/**
- * Allocate empty list of bitstream filters.
- * The list must be later freed by av_bsf_list_free()
- * or finalized by av_bsf_list_finalize().
- *
- * @return Pointer to @ref AVBSFList on success, NULL in case of failure
- */
-AVBSFList *av_bsf_list_alloc(void);
-
-/**
- * Free list of bitstream filters.
- *
- * @param lst Pointer to pointer returned by av_bsf_list_alloc()
- */
-void av_bsf_list_free(AVBSFList **lst);
-
-/**
- * Append bitstream filter to the list of bitstream filters.
- *
- * @param lst List to append to
- * @param bsf Filter context to be appended
- *
- * @return >=0 on success, negative AVERROR in case of failure
- */
-int av_bsf_list_append(AVBSFList *lst, AVBSFContext *bsf);
-
-/**
- * Construct new bitstream filter context given it's name and options
- * and append it to the list of bitstream filters.
- *
- * @param lst List to append to
- * @param bsf_name Name of the bitstream filter
- * @param options Options for the bitstream filter, can be set to NULL
- *
- * @return >=0 on success, negative AVERROR in case of failure
- */
-int av_bsf_list_append2(AVBSFList *lst, const char * bsf_name, AVDictionary **options);
-/**
- * Finalize list of bitstream filters.
- *
- * This function will transform @ref AVBSFList to single @ref AVBSFContext,
- * so the whole chain of bitstream filters can be treated as single filter
- * freshly allocated by av_bsf_alloc().
- * If the call is successful, @ref AVBSFList structure is freed and lst
- * will be set to NULL. In case of failure, caller is responsible for
- * freeing the structure by av_bsf_list_free()
- *
- * @param lst Filter list structure to be transformed
- * @param[out] bsf Pointer to be set to newly created @ref AVBSFContext structure
- * representing the chain of bitstream filters
- *
- * @return >=0 on success, negative AVERROR in case of failure
- */
-int av_bsf_list_finalize(AVBSFList **lst, AVBSFContext **bsf);
-
-/**
- * Parse string describing list of bitstream filters and create single
- * @ref AVBSFContext describing the whole chain of bitstream filters.
- * Resulting @ref AVBSFContext can be treated as any other @ref AVBSFContext freshly
- * allocated by av_bsf_alloc().
- *
- * @param str String describing chain of bitstream filters in format
- * `bsf1[=opt1=val1:opt2=val2][,bsf2]`
- * @param[out] bsf Pointer to be set to newly created @ref AVBSFContext structure
- * representing the chain of bitstream filters
- *
- * @return >=0 on success, negative AVERROR in case of failure
- */
-int av_bsf_list_parse_str(const char *str, AVBSFContext **bsf);
-
-/**
- * Get null/pass-through bitstream filter.
- *
- * @param[out] bsf Pointer to be set to new instance of pass-through bitstream filter
- *
- * @return
- */
-int av_bsf_get_null_filter(AVBSFContext **bsf);
-
/* memory */
/**
*/
int av_codec_is_decoder(const AVCodec *codec);
-/**
- * @return descriptor for given codec ID or NULL if no descriptor exists.
- */
-const AVCodecDescriptor *avcodec_descriptor_get(enum AVCodecID id);
-
-/**
- * Iterate over all codec descriptors known to libavcodec.
- *
- * @param prev previous descriptor. NULL to get the first descriptor.
- *
- * @return next descriptor or NULL after the last descriptor
- */
-const AVCodecDescriptor *avcodec_descriptor_next(const AVCodecDescriptor *prev);
-
-/**
- * @return codec descriptor with the given name or NULL if no such descriptor
- * exists.
- */
-const AVCodecDescriptor *avcodec_descriptor_get_by_name(const char *name);
-
/**
* Allocate a CPB properties structure and initialize its fields to default
* values.
projects / ffmpeg / blobdiff