libavcodec/avcodec.h File Reference

external API header More...

#include <errno.h>
#include "libavutil/avutil.h"

Go to the source code of this file.

Data Structures

struct RcOverride

struct AVPanScan

Pan Scan area. More...

struct AVFrame

Audio Video Frame. More...

struct AVCodecContext

main external API structure. More...

struct AVCodec

AVCodec. More...

struct AVHWAccel

AVHWAccel. More...

struct AVPicture

four components are given, that's all. More...

struct AVPaletteControl

struct AVSubtitleRect

struct AVSubtitle

struct AVCodecParserContext

struct AVCodecParser

struct AVBitStreamFilterContext

struct AVBitStreamFilter

Defines

#define LIBAVCODEC_VERSION_MAJOR   52

#define LIBAVCODEC_VERSION_MINOR   20

#define LIBAVCODEC_VERSION_MICRO   1

#define LIBAVCODEC_VERSION_INT

#define LIBAVCODEC_VERSION

#define LIBAVCODEC_BUILD   LIBAVCODEC_VERSION_INT

#define LIBAVCODEC_IDENT   "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)

#define AV_NOPTS_VALUE   INT64_C(0x8000000000000000)

#define AV_TIME_BASE   1000000

#define AV_TIME_BASE_Q   (AVRational){1, AV_TIME_BASE}

#define CH_FRONT_LEFT   0x00000001

#define CH_FRONT_RIGHT   0x00000002

#define CH_FRONT_CENTER   0x00000004

#define CH_LOW_FREQUENCY   0x00000008

#define CH_BACK_LEFT   0x00000010

#define CH_BACK_RIGHT   0x00000020

#define CH_FRONT_LEFT_OF_CENTER   0x00000040

#define CH_FRONT_RIGHT_OF_CENTER   0x00000080

#define CH_BACK_CENTER   0x00000100

#define CH_SIDE_LEFT   0x00000200

#define CH_SIDE_RIGHT   0x00000400

#define CH_TOP_CENTER   0x00000800

#define CH_TOP_FRONT_LEFT   0x00001000

#define CH_TOP_FRONT_CENTER   0x00002000

#define CH_TOP_FRONT_RIGHT   0x00004000

#define CH_TOP_BACK_LEFT   0x00008000

#define CH_TOP_BACK_CENTER   0x00010000

#define CH_TOP_BACK_RIGHT   0x00020000

#define CH_STEREO_LEFT   0x20000000

Stereo downmix.

#define CH_STEREO_RIGHT   0x40000000

See CH_STEREO_LEFT.

#define CH_LAYOUT_MONO   (CH_FRONT_CENTER)

#define CH_LAYOUT_STEREO   (CH_FRONT_LEFT|CH_FRONT_RIGHT)

#define CH_LAYOUT_SURROUND   (CH_LAYOUT_STEREO|CH_FRONT_CENTER)

#define CH_LAYOUT_QUAD   (CH_LAYOUT_STEREO|CH_BACK_LEFT|CH_BACK_RIGHT)

#define CH_LAYOUT_5POINT0   (CH_LAYOUT_SURROUND|CH_SIDE_LEFT|CH_SIDE_RIGHT)

#define CH_LAYOUT_5POINT1   (CH_LAYOUT_5POINT0|CH_LOW_FREQUENCY)

#define CH_LAYOUT_7POINT1   (CH_LAYOUT_5POINT1|CH_BACK_LEFT|CH_BACK_RIGHT)

#define CH_LAYOUT_7POINT1_WIDE

#define CH_LAYOUT_STEREO_DOWNMIX   (CH_STEREO_LEFT|CH_STEREO_RIGHT)

#define AVCODEC_MAX_AUDIO_FRAME_SIZE   192000

#define FF_INPUT_BUFFER_PADDING_SIZE   8

Required number of additionally allocated bytes at the end of the input bitstream for decoding.

#define FF_MIN_BUFFER_SIZE   16384

minimum encoding buffer size Used to avoid some checks during header writing.

#define FF_MAX_B_FRAMES   16

#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>.

#define CODEC_FLAG_PART   0x0080

Use data partitioning.

#define CODEC_FLAG_INPUT_PRESERVED   0x0100

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_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_EXTERN_HUFF   0x1000

Use external Huffman table (for MJPEG).

#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

#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_ALT_SCAN   0x00100000

Use alternate scan.

#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).

#define CODEC_FLAG_AC_PRED   0x01000000

H.263 advanced intra coding / MPEG-4 AC prediction.

#define CODEC_FLAG_H263P_UMV   0x02000000

unlimited motion vector

#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_H263P_AIV   0x00000008

H.263 alternative inter VLC.

#define CODEC_FLAG_OBMC   0x00000001

OBMC.

#define CODEC_FLAG_LOOP_FILTER   0x00000800

loop filter

#define CODEC_FLAG_H263P_SLICE_STRUCT   0x10000000

#define CODEC_FLAG_INTERLACED_ME   0x20000000

interlaced motion estimation

#define CODEC_FLAG_SVCD_SCAN_OFFSET   0x40000000

Will reserve space for SVCD scan offset user data.

#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_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_INTRA_VLC   0x00000800

Use MPEG-2 intra VLC table.

#define CODEC_FLAG2_MEMC_ONLY   0x00001000

Only do ME/MC (I frames -> ref, P frame -> ME+MC).

#define CODEC_FLAG2_DROP_FRAME_TIMECODE   0x00002000

timecode is in drop frame format.

#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_NON_LINEAR_QUANT   0x00010000

Use MPEG-2 nonlinear quantizer.

#define CODEC_FLAG2_BIT_RESERVOIR   0x00020000

Use a bit reservoir when encoding if possible.

#define CODEC_FLAG2_MBTREE   0x00040000

Use macroblock tree ratecontrol (x264 only).

#define CODEC_CAP_DRAW_HORIZ_BAND   0x0001

Decoder can use draw_horiz_band callback.

#define CODEC_CAP_DR1   0x0002

Codec uses get_buffer() for allocating buffers.

#define CODEC_CAP_PARSE_ONLY   0x0004

#define CODEC_CAP_TRUNCATED   0x0008

#define CODEC_CAP_HWACCEL   0x0010

#define CODEC_CAP_DELAY   0x0020

Codec has a nonzero delay and needs to be fed with NULL at the end to get the delayed data.

#define CODEC_CAP_SMALL_LAST_FRAME   0x0040

Codec can be fed a final frame with a smaller size.

#define CODEC_CAP_HWACCEL_VDPAU   0x0080

Codec can export data for HW decoding (VDPAU).

#define MB_TYPE_INTRA4x4   0x0001

#define MB_TYPE_INTRA16x16   0x0002

#define MB_TYPE_INTRA_PCM   0x0004

#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

#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

#define FF_COMMON_FRAME

#define FF_QSCALE_TYPE_MPEG1   0

#define FF_QSCALE_TYPE_MPEG2   1

#define FF_QSCALE_TYPE_H264   2

#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.

#define FF_I_TYPE   1

Intra.

#define FF_P_TYPE   2

Predicted.

#define FF_B_TYPE   3

Bi-dir predicted.

#define FF_S_TYPE   4

S(GMC)-VOP MPEG4.

#define FF_SI_TYPE   5

Switching Intra.

#define FF_SP_TYPE   6

Switching Predicted.

#define FF_BI_TYPE   7

#define FF_BUFFER_HINTS_VALID   0x01

#define FF_BUFFER_HINTS_READABLE   0x02

#define FF_BUFFER_HINTS_PRESERVE   0x04

#define FF_BUFFER_HINTS_REUSABLE   0x08

#define FF_ASPECT_EXTENDED   15

#define FF_RC_STRATEGY_XVID   1

#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_COMPLIANCE_VERY_STRICT   2

Strictly conform to a 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_INOFFICIAL   -1

Allow inofficial extensions.

#define FF_COMPLIANCE_EXPERIMENTAL   -2

Allow nonstandardized experimental things.

#define FF_ER_CAREFUL   1

#define FF_ER_COMPLIANT   2

#define FF_ER_AGGRESSIVE   3

#define FF_ER_VERY_AGGRESSIVE   4

#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

#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_EC_GUESS_MVS   1

#define FF_EC_DEBLOCK   2

#define FF_MM_FORCE   0x80000000

#define FF_MM_MMX   0x0001

standard MMX

#define FF_MM_3DNOW   0x0004

AMD 3DNOW.

#define FF_MM_MMXEXT   0x0002

SSE integer functions or AMD MMX ext.

#define FF_MM_SSE   0x0008

SSE functions.

#define FF_MM_SSE2   0x0010

PIV SSE2 functions.

#define FF_MM_3DNOWEXT   0x0020

AMD 3DNowExt.

#define FF_MM_SSE3   0x0040

Prescott SSE3 functions.

#define FF_MM_SSSE3   0x0080

Conroe SSSE3 functions.

#define FF_MM_IWMMXT   0x0100

XScale IWMMXT.

#define FF_MM_ALTIVEC   0x0001

standard AltiVec

#define FF_PRED_LEFT   0

#define FF_PRED_PLANE   1

#define FF_PRED_MEDIAN   2

#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_VIS_MV_P_FOR   0x00000001

#define FF_DEBUG_VIS_MV_B_FOR   0x00000002

#define FF_DEBUG_VIS_MV_B_BACK   0x00000004

#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

#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

#define FF_DEFAULT_QUANT_BIAS   999999

#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

#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

#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)

#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

#define FF_AA_AUTO   0

#define FF_AA_FASTINT   1

#define FF_AA_INT   2

#define FF_AA_FLOAT   3

#define FF_PROFILE_UNKNOWN   -99

#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_LEVEL_UNKNOWN   -99

#define X264_PART_I4X4   0x001

#define X264_PART_I8X8   0x002

#define X264_PART_P8X8   0x010

#define X264_PART_P4X4   0x020

#define X264_PART_B8X8   0x100

#define FF_COMPRESSION_DEFAULT   -1

#define AVPALETTE_SIZE   1024

AVPaletteControl This structure defines a method for communicating palette changes between and demuxer and a decoder.

#define AVPALETTE_COUNT   256

#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.

#define FF_ALPHA_TRANSP   0x0001

#define FF_ALPHA_SEMI_TRANSP   0x0002

#define AV_PARSER_PTS_NB   4

#define PARSER_FLAG_COMPLETE_FRAMES   0x0001

#define AVERROR(e)   (e)

#define AVUNERROR(e)   (e)

#define AVERROR_UNKNOWN   AVERROR(EINVAL)

unknown error

#define AVERROR_IO   AVERROR(EIO)

I/O error.

#define AVERROR_NUMEXPECTED   AVERROR(EDOM)

Number syntax expected in filename.

#define AVERROR_INVALIDDATA   AVERROR(EINVAL)

invalid data found

#define AVERROR_NOMEM   AVERROR(ENOMEM)

not enough memory

#define AVERROR_NOFMT   AVERROR(EILSEQ)

unknown format

#define AVERROR_NOTSUPP   AVERROR(ENOSYS)

Operation not supported.

#define AVERROR_NOENT   AVERROR(ENOENT)

No such file or directory.

#define AVERROR_EOF   AVERROR(EPIPE)

End of file.

#define AVERROR_PATCHWELCOME   -MKTAG('P','A','W','E')

Not yet implemented in FFmpeg.

Typedefs

typedef struct AVPaletteControl attribute_deprecated

typedef struct ReSampleContext ReSampleContext

Enumerations

enum CodecID {
  CODEC_ID_NONE, CODEC_ID_MPEG1VIDEO, CODEC_ID_MPEG2VIDEO, 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_XVID,
  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_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_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_AMR_NB = 0x12000, CODEC_ID_AMR_WB, CODEC_ID_RA_144 = 0x13000,
  CODEC_ID_RA_288, CODEC_ID_ROQ_DPCM = 0x14000, CODEC_ID_INTERPLAY_DPCM, CODEC_ID_XAN_DPCM,
  CODEC_ID_SOL_DPCM, CODEC_ID_MP2 = 0x15000, CODEC_ID_MP3, 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, 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, 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_DVD_SUBTITLE = 0x17000,
  CODEC_ID_DVB_SUBTITLE, CODEC_ID_TEXT, CODEC_ID_XSUB, CODEC_ID_SSA,
  CODEC_ID_MOV_TEXT, CODEC_ID_TTF = 0x18000, CODEC_ID_PROBE = 0x19000, CODEC_ID_MPEG2TS = 0x20000
}

Identifies the syntax and semantics of the bitstream. More...

enum CodecType {
  CODEC_TYPE_UNKNOWN = -1, CODEC_TYPE_VIDEO, CODEC_TYPE_AUDIO, CODEC_TYPE_DATA,
  CODEC_TYPE_SUBTITLE, CODEC_TYPE_ATTACHMENT, CODEC_TYPE_NB
}

enum SampleFormat {
  SAMPLE_FMT_NONE = -1, SAMPLE_FMT_U8, SAMPLE_FMT_S16, SAMPLE_FMT_S32,
  SAMPLE_FMT_FLT, SAMPLE_FMT_DBL, SAMPLE_FMT_NB
}

all in native-endian format More...

enum Motion_Est_ID {
  ME_ZERO = 1, ME_FULL, ME_LOG, ME_PHODS,
  ME_EPZS, ME_X1, ME_HEX, ME_UMH,
  ME_ITER, ME_TESA
}

motion estimation type. More...

enum AVDiscard {
  AVDISCARD_NONE = -16, AVDISCARD_DEFAULT = 0, AVDISCARD_NONREF = 8, AVDISCARD_BIDIR = 16,
  AVDISCARD_NONKEY = 32, AVDISCARD_ALL = 48
}

enum AVSubtitleType { SUBTITLE_NONE, SUBTITLE_BITMAP, SUBTITLE_TEXT, SUBTITLE_ASS }

enum AVLockOp { AV_LOCK_CREATE, AV_LOCK_OBTAIN, AV_LOCK_RELEASE, AV_LOCK_DESTROY }

Lock operation used by lockmgr. More...

Functions

attribute_deprecated
ReSampleContext * audio_resample_init (int output_channels, int input_channels, int output_rate, int input_rate)

ReSampleContext * av_audio_resample_init (int output_channels, int input_channels, int output_rate, int input_rate, enum SampleFormat sample_fmt_out, enum SampleFormat sample_fmt_in, int filter_length, int log2_phase_count, int linear, double cutoff)

Initializes audio resampling context.

int audio_resample (ReSampleContext *s, short *output, short *input, int nb_samples)

void audio_resample_close (ReSampleContext *s)

struct AVResampleContext * av_resample_init (int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff)

Initializes an audio resampler.

int av_resample (struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx)

resamples.

void av_resample_compensate (struct AVResampleContext *c, int sample_delta, int compensation_distance)

Compensates samplerate/timestamp drift.

void av_resample_close (struct AVResampleContext *c)

int avpicture_alloc (AVPicture *picture, int pix_fmt, int width, int height)

Allocate memory for a picture.

void avpicture_free (AVPicture *picture)

Free a picture previously allocated by avpicture_alloc().

int avpicture_fill (AVPicture *picture, uint8_t *ptr, int pix_fmt, int width, int height)

Fill in the AVPicture fields.

int avpicture_layout (const AVPicture *src, int pix_fmt, int width, int height, unsigned char *dest, int dest_size)

int avpicture_get_size (int pix_fmt, int width, int height)

Calculate the size in bytes that a picture of the given width and height would occupy if stored in the given picture format.

void avcodec_get_chroma_sub_sample (int pix_fmt, int *h_shift, int *v_shift)

const char * avcodec_get_pix_fmt_name (int pix_fmt)

void avcodec_set_dimensions (AVCodecContext *s, int width, int height)

enum PixelFormat avcodec_get_pix_fmt (const char *name)

unsigned int avcodec_pix_fmt_to_codec_tag (enum PixelFormat p)

int avcodec_get_pix_fmt_loss (int dst_pix_fmt, int src_pix_fmt, int has_alpha)

Computes what kind of losses will occur when converting from one specific pixel format to another.

int avcodec_find_best_pix_fmt (int64_t pix_fmt_mask, int src_pix_fmt, int has_alpha, int *loss_ptr)

Finds the best pixel format to convert to given a certain source pixel format.

void avcodec_pix_fmt_string (char *buf, int buf_size, int pix_fmt)

Print in buf the string corresponding to the pixel format with number pix_fmt, or an header if pix_fmt is negative.

int img_get_alpha_info (const AVPicture *src, int pix_fmt, int width, int height)

Tell if an image really has transparent alpha values.

int avpicture_deinterlace (AVPicture *dst, const AVPicture *src, int pix_fmt, int width, int height)

AVCodec * av_codec_next (AVCodec *c)

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.

unsigned avcodec_version (void)

Returns the LIBAVCODEC_VERSION_INT constant.

void avcodec_init (void)

Initializes libavcodec.

attribute_deprecated void register_avcodec (AVCodec *codec)

void avcodec_register (AVCodec *codec)

Register the codec codec and initialize libavcodec.

AVCodec * avcodec_find_encoder (enum CodecID id)

Finds a registered encoder with a matching codec ID.

AVCodec * avcodec_find_encoder_by_name (const char *name)

Finds a registered encoder with the specified name.

AVCodec * avcodec_find_decoder (enum CodecID id)

Finds a registered decoder with a matching codec ID.

AVCodec * avcodec_find_decoder_by_name (const char *name)

Finds a registered decoder with the specified name.

void avcodec_string (char *buf, int buf_size, AVCodecContext *enc, int encode)

void avcodec_get_context_defaults (AVCodecContext *s)

Sets the fields of the given AVCodecContext to default values.

void avcodec_get_context_defaults2 (AVCodecContext *s, enum CodecType)

THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!

AVCodecContext * avcodec_alloc_context (void)

Allocates an AVCodecContext and sets its fields to default values.

AVCodecContext * avcodec_alloc_context2 (enum CodecType)

THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!

void avcodec_get_frame_defaults (AVFrame *pic)

Sets the fields of the given AVFrame to default values.

AVFrame * avcodec_alloc_frame (void)

Allocates an AVFrame and sets its fields to default values.

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)

void avcodec_align_dimensions (AVCodecContext *s, int *width, int *height)

int avcodec_check_dimensions (void *av_log_ctx, unsigned int w, unsigned int h)

Checks if the given dimension of a picture is valid, meaning that all bytes of the picture can be addressed with a signed int.

enum PixelFormat avcodec_default_get_format (struct AVCodecContext *s, const enum PixelFormat *fmt)

int avcodec_thread_init (AVCodecContext *s, int thread_count)

void avcodec_thread_free (AVCodecContext *s)

Free what has been allocated by avcodec_thread_init().

int avcodec_thread_execute (AVCodecContext *s, int(*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)

int avcodec_default_execute (AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)

int avcodec_open (AVCodecContext *avctx, AVCodec *codec)

Initializes the AVCodecContext to use the given AVCodec.

int avcodec_decode_audio2 (AVCodecContext *avctx, int16_t *samples, int *frame_size_ptr, const uint8_t *buf, int buf_size)

Decodes an audio frame from buf into samples.

int avcodec_decode_video (AVCodecContext *avctx, AVFrame *picture, int *got_picture_ptr, const uint8_t *buf, int buf_size)

Decodes a video frame from buf into picture.

int avcodec_decode_subtitle (AVCodecContext *avctx, AVSubtitle *sub, int *got_sub_ptr, const uint8_t *buf, int buf_size)

int avcodec_parse_frame (AVCodecContext *avctx, uint8_t **pdata, int *data_size_ptr, uint8_t *buf, int buf_size)

int avcodec_encode_audio (AVCodecContext *avctx, uint8_t *buf, int buf_size, const short *samples)

Encodes an audio frame from samples into buf.

int avcodec_encode_video (AVCodecContext *avctx, uint8_t *buf, int buf_size, const AVFrame *pict)

Encodes a video frame from pict into buf.

int avcodec_encode_subtitle (AVCodecContext *avctx, uint8_t *buf, int buf_size, const AVSubtitle *sub)

int avcodec_close (AVCodecContext *avctx)

void avcodec_register_all (void)

Register all the codecs, parsers and bitstream filters which were enabled at configuration time.

void avcodec_flush_buffers (AVCodecContext *avctx)

Flush buffers, should be called when seeking or when switching to a different stream.

void avcodec_default_free_buffers (AVCodecContext *s)

char av_get_pict_type_char (int pict_type)

Returns a single letter to describe the given picture type pict_type.

int av_get_bits_per_sample (enum CodecID codec_id)

Returns codec bits per sample.

int av_get_bits_per_sample_format (enum SampleFormat sample_fmt)

Returns sample format bits per sample.

AVCodecParser * av_parser_next (AVCodecParser *c)

void av_register_codec_parser (AVCodecParser *parser)

AVCodecParserContext * av_parser_init (int codec_id)

int av_parser_parse (AVCodecParserContext *s, AVCodecContext *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int64_t pts, int64_t dts)

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)

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)

void * av_fast_realloc (void *ptr, unsigned int *size, unsigned int min_size)

Reallocates the given block if it is not large enough, otherwise it does nothing.

void av_picture_copy (AVPicture *dst, const AVPicture *src, int pix_fmt, int width, int height)

Copy image 'src' to 'dst'.

int av_picture_crop (AVPicture *dst, const AVPicture *src, int pix_fmt, int top_band, int left_band)

Crop image top and left side.

int av_picture_pad (AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt, int padtop, int padbottom, int padleft, int padright, int *color)

Pad image.

unsigned int av_xiphlacing (unsigned char *s, unsigned int v)

int av_parse_video_frame_size (int *width_ptr, int *height_ptr, const char *str)

Parses str and put in width_ptr and height_ptr the detected values.

int av_parse_video_frame_rate (AVRational *frame_rate, const char *str)

Parses str and put in frame_rate the detected values.

void av_register_hwaccel (AVHWAccel *hwaccel)

Registers the hardware accelerator hwaccel.

AVHWAccel * av_hwaccel_next (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.

int av_lockmgr_register (int(*cb)(void **mutex, enum AVLockOp op))

Register a user provided lock manager supporting the operations specified by AVLockOp.

Detailed Description

external API header

Definition in file avcodec.h.

Define Documentation

#define AV_NOPTS_VALUE INT64_C(0x8000000000000000)

Definition at line 46 of file avcodec.h.

Referenced by asf_read_frame_header(), asf_read_pts(), asf_write_packet(), audio_decode_frame(), av_encode(), av_estimate_timings_from_bit_rate(), av_estimate_timings_from_pts(), av_find_stream_info(), av_gen_search(), av_has_duration(), av_init_packet(), av_interleaved_write_frame(), av_new_stream(), av_open_input_stream(), av_parser_init(), av_parser_parse(), av_read_frame(), av_read_frame_flush(), av_read_frame_internal(), av_seek_frame_binary(), av_update_stream_timings(), av_write_header(), avcodec_get_frame_defaults(), avi_write_packet(), compute_chapters_end(), compute_pkt_fields(), compute_pkt_fields2(), decode_frame(), decode_thread(), decode_vop_header(), dirac_combine_frame(), do_audio_out(), do_subtitle_out(), do_video_out(), dump_format(), dvbsub_parse(), ff_fetch_timestamp(), ff_interleave_compare_dts(), ff_rate_estimate_qscale(), fill_all_stream_timings(), finalize_packet(), flush_packet(), flv_read_packet(), get_pts(), get_vcd_padding_size(), gxf_header(), gxf_material_tags(), gxf_resync_media(), http_prepare_data(), load_input_picture(), matroska_parse_block(), matroska_read_header(), mov_read_trak(), mov_write_packet(), mpeg_mux_write_packet(), mpegps_read_dts(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_push_data(), mpegts_write_header(), mpegts_write_packet(), mpegts_write_pes(), MPV_encode_init(), mxf_parse_structural_metadata(), nut_read_timestamp(), ogg_get_length(), ogg_gptopts(), ogg_read_timestamp(), open_input_stream(), opt_input_file(), output_packet(), parse_timecode(), pkt_dump_internal(), pva_read_timestamp(), read_header(), read_part_of_packet(), read_seek(), rm_assemble_video_frame(), rm_read_dts(), rtcp_parse_packet(), rtcp_send_sr(), rtp_check_and_send_back_rr(), rtp_parse_open(), rtp_write_header(), rtsp_cmd_pause(), rtsp_cmd_play(), rtsp_parse_range_npt(), sdp_parse_line(), set_frame_distances(), subtitle_thread(), sync(), update_initial_durations(), update_initial_timestamps(), video_thread(), write_audio_frame(), write_packet(), and write_video_frame().

#define AV_PARSER_PTS_NB 4

Definition at line 3001 of file avcodec.h.

Referenced by av_parser_parse(), and ff_fetch_timestamp().

#define AV_TIME_BASE 1000000

#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}

Definition at line 48 of file avcodec.h.

Referenced by av_encode(), av_find_stream_info(), av_update_stream_timings(), compute_chapters_end(), decode_thread(), fill_all_stream_timings(), http_prepare_data(), main(), ogg_compare_granule(), output_packet(), and rtsp_read_seek().

#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000

Definition at line 389 of file avcodec.h.

Referenced by audio_decode_example(), avcodec_decode_audio2(), dv_assemble_frame(), dv_init_mux(), output_packet(), try_decode_frame(), and vorbis_parse_id_hdr().

#define AVERROR ( e ) (e)

Definition at line 3198 of file avcodec.h.

Referenced by adpcm_decode_init(), aiff_read_header(), aiff_read_packet(), amr_read_header(), amr_read_packet(), apc_read_header(), apc_read_packet(), ape_read_header(), asf_read_header(), asf_read_seek(), atrac3_decode_init(), au_read_packet(), audio_open(), audio_read_header(), audio_read_packet(), audio_write_header(), audio_write_packet(), av_dup_packet(), av_encode(), av_find_stream_info(), av_metadata_set(), av_new_packet(), av_open_input_file(), av_open_input_stream(), av_read_frame(), av_read_frame_internal(), av_read_pause(), av_read_play(), av_set_number2(), av_set_parameters(), av_set_string3(), av_url_read_fpause(), av_url_read_fseek(), av_url_read_pause(), av_url_read_seek(), av_write_header(), avcodec_open(), avf_sdp_create(), avisynth_read_packet(), avs_read_audio_packet(), avs_read_packet(), avs_read_video_packet(), bfi_read_header(), bfi_read_packet(), build_modpred(), cdata_read_header(), cdata_read_packet(), cin_read_frame_header(), cin_read_header(), cin_read_packet(), daud_header(), daud_packet(), decode_stream_header(), dv1394_read_header(), dv1394_read_packet(), dv_read_header(), dv_read_packet(), dxa_read_packet(), ea_read_header(), ea_read_packet(), ebml_parse_elem(), ebml_read_ascii(), ebml_read_binary(), ebml_read_master(), ebml_read_num(), ff_alsa_open(), ff_asf_parse_packet(), ff_combine_frame(), ff_rm_read_mdpr_codecdata(), ffm_read_header(), ffm_read_packet(), file_open(), film_read_header(), film_read_packet(), flac_read_header(), flic_read_header(), flic_read_packet(), flv_get_extradata(), flv_read_header(), flv_read_packet(), fourxm_read_header(), fourxm_read_packet(), frame_hook_add(), g726_init(), get_sindex(), get_tag(), gif_read_image(), gif_write_header(), gopher_connect(), gopher_open(), grab_read_header(), grab_read_packet(), gxf_packet(), gxf_write_header(), h264_mp4toannexb_filter(), http_connect(), http_getc(), http_open(), http_open_cnx(), idcin_read_header(), idcin_read_packet(), iff_read_header(), iff_read_packet(), img_read_header(), img_read_packet(), ipmovie_read_header(), ipmovie_read_packet(), iss_read_header(), iss_read_packet(), iv_alloc_frames(), lmlm4_read_header(), lmlm4_read_packet(), matroska_merge_packets(), matroska_parse_block(), matroska_read_header(), mkv_add_cuepoint(), mkv_add_seekhead_entry(), mkv_write_header(), mm_read_header(), mm_read_packet(), mmap_read_frame(), mmf_read_header(), mmf_read_packet(), mov_read_cmov(), mov_read_ctts(), mov_read_dref(), mov_read_esds(), mov_read_glbl(), mov_read_smi(), mov_read_stco(), mov_read_stsc(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_trak(), mov_read_trex(), mov_read_trun(), mov_read_wave(), mov_write_packet(), mp3_read_header(), mp3_read_packet(), mpc7_decode_frame(), mpc8_read_header(), mpc8_read_packet(), mpc_read_header(), mpc_read_packet(), mpeg_mux_init(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_raw_read_packet(), mtv_read_header(), mtv_read_packet(), mxf_read_packet(), mxf_write_header(), nc_read_header(), nc_read_packet(), nsv_parse_NSVf_header(), nuv_header(), nuv_packet(), ogg_new_stream(), ogg_read_packet(), oma_read_header(), oma_read_packet(), output_configure(), print_error(), pva_read_header(), pva_read_packet(), qdm2_decode_frame(), r3d_read_rdvo(), read_frame(), read_header(), read_packet(), read_part_of_packet(), rl2_read_header(), rl2_read_packet(), rm_assemble_video_frame(), rm_read_header(), rm_read_packet(), roq_read_header(), roq_read_packet(), rpl_read_header(), rpl_read_packet(), rtp_open(), rtp_read(), rtp_write_header(), rtsp_open_transport_ctx(), rtsp_read_header(), seq_fill_buffer(), seq_init_frame_buffers(), seq_read_header(), seq_read_packet(), siff_read_packet(), smacker_read_header(), smacker_read_packet(), sol_read_packet(), str_read_header(), str_read_packet(), swf_read_header(), swf_read_packet(), tcp_open(), tcp_read(), tcp_write(), thp_read_header(), thp_read_packet(), tta_read_header(), txd_read_header(), txd_read_packet(), udp_open(), udp_read(), udp_read_packet(), udp_set_remote_url(), udp_set_url(), udp_write(), url_fdopen(), url_fseek(), url_fsize(), url_open(), url_open_protocol(), url_read(), url_resetbuf(), url_seek(), url_setbufsize(), url_write(), v4l2_read_header(), v4l2_read_packet(), v4l2_set_parameters(), v4l_mm_read_picture(), vc1t_read_packet(), vfw_read_header(), vfw_read_packet(), vid_read_header(), vid_read_packet(), vmd_read_header(), vmd_read_packet(), voc_get_packet(), voc_read_header(), wav_read_header(), wav_read_packet(), wc3_read_header(), wc3_read_packet(), wsaud_read_header(), wsaud_read_packet(), wsvqa_read_header(), wsvqa_read_packet(), wv_read_packet(), x11grab_read_header(), x11grab_read_packet(), xa_read_header(), xa_read_packet(), yuv4_read_header(), and yuv4_read_packet().

#define AVERROR_EOF AVERROR(EPIPE)

End of file.

Definition at line 3209 of file avcodec.h.

Referenced by avi_read_packet(), decode_thread(), flv_read_packet(), and matroska_read_packet().

#define AVERROR_INVALIDDATA AVERROR(EINVAL)

invalid data found

Definition at line 3204 of file avcodec.h.

Referenced by aiff_read_header(), av_write_header(), avs_read_packet(), cin_read_file_header(), cin_read_frame_header(), cinvideo_decode_frame(), decode_frame(), decode_init(), decodeTonalComponents(), ea_read_packet(), ebml_parse_elem(), ebml_read_float(), ebml_read_num(), ebml_read_uint(), encode_frame(), film_read_header(), flic_read_header(), fourxm_read_header(), iff_read_header(), ipmovie_read_header(), ipmovie_read_packet(), ir2_decode_frame(), make_setup_request(), mjpegb_decode_frame(), mm_read_header(), print_error(), qdm2_decode_init(), read_header(), read_packet(), read_rle_sgi(), rl2_read_header(), roq_read_header(), roq_read_packet(), rtsp_read_header(), rtsp_read_packet(), rv34_decode_slice(), sdp_read_header(), seq_fill_buffer(), seq_parse_frame_data(), smacker_read_packet(), str_read_packet(), vqa_decode_init(), wc3_read_header(), wc3_read_packet(), wsaud_read_header(), and wsaud_read_packet().

#define AVERROR_IO AVERROR(EIO)

I/O error.

Definition at line 3202 of file avcodec.h.

Referenced by ape_read_packet(), ea_read_packet(), ff_alsa_open(), ff_alsa_xrun_recover(), and vfw_read_header().

#define AVERROR_NOENT AVERROR(ENOENT)

No such file or directory.

Definition at line 3208 of file avcodec.h.

#define AVERROR_NOFMT AVERROR(EILSEQ)

unknown format

Definition at line 3206 of file avcodec.h.

Referenced by av_open_input_file(), if(), matroska_read_header(), and print_error().

#define AVERROR_NOMEM AVERROR(ENOMEM)

not enough memory

Definition at line 3205 of file avcodec.h.

Referenced by ac3_decode_init(), ape_read_header(), ape_read_packet(), flac_encode_init(), mimic_decode_frame(), msnwc_tcp_read_header(), tgv_decode_frame(), and vfw_read_header().

#define AVERROR_NOTSUPP AVERROR(ENOSYS)

Operation not supported.

Definition at line 3207 of file avcodec.h.

#define AVERROR_NUMEXPECTED AVERROR(EDOM)

Number syntax expected in filename.

Definition at line 3203 of file avcodec.h.

Referenced by av_open_input_file(), opt_output_file(), and print_error().

#define AVERROR_PATCHWELCOME -MKTAG('P','A','W','E')

Not yet implemented in FFmpeg.

Patches welcome.

Definition at line 3210 of file avcodec.h.

Referenced by shorten_decode_frame(), vfw_read_header(), and voc_write_header().

#define AVERROR_UNKNOWN AVERROR(EINVAL)

unknown error

Definition at line 3201 of file avcodec.h.

#define AVPALETTE_COUNT 256

Definition at line 2355 of file avcodec.h.

Referenced by cmv_process_header(), rl2_decode_init(), and tgv_decode_frame().

#define AVPALETTE_SIZE 1024

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.

Definition at line 2354 of file avcodec.h.

Referenced by asf_read_header(), avi_read_header(), cinepak_decode_frame(), cmv_decode_frame(), decode_frame(), flic_decode_frame_8BPP(), mm_decode_frame(), msrle_decode_frame(), msvideo1_decode_8bit(), qtrle_decode_frame(), raw_decode(), rl2_decode_frame(), smc_decode_stream(), tgv_decode_frame(), and xan_decode_frame().

#define AVUNERROR ( e ) (e)

Definition at line 3199 of file avcodec.h.

#define CH_BACK_CENTER 0x00000100

Definition at line 362 of file avcodec.h.

#define CH_BACK_LEFT 0x00000010

Definition at line 358 of file avcodec.h.

#define CH_BACK_RIGHT 0x00000020

Definition at line 359 of file avcodec.h.

#define CH_FRONT_CENTER 0x00000004

Definition at line 356 of file avcodec.h.

#define CH_FRONT_LEFT 0x00000001

Definition at line 354 of file avcodec.h.

#define CH_FRONT_LEFT_OF_CENTER 0x00000040

Definition at line 360 of file avcodec.h.

#define CH_FRONT_RIGHT 0x00000002

Definition at line 355 of file avcodec.h.

#define CH_FRONT_RIGHT_OF_CENTER 0x00000080

Definition at line 361 of file avcodec.h.

#define CH_LAYOUT_5POINT0 (CH_LAYOUT_SURROUND|CH_SIDE_LEFT|CH_SIDE_RIGHT)

Definition at line 380 of file avcodec.h.

Referenced by avcodec_guess_channel_layout().

#define CH_LAYOUT_5POINT1 (CH_LAYOUT_5POINT0|CH_LOW_FREQUENCY)

Definition at line 381 of file avcodec.h.

Referenced by avcodec_guess_channel_layout().

#define CH_LAYOUT_7POINT1 (CH_LAYOUT_5POINT1|CH_BACK_LEFT|CH_BACK_RIGHT)

Definition at line 382 of file avcodec.h.

Referenced by avcodec_guess_channel_layout().

#define CH_LAYOUT_7POINT1_WIDE

Value:

(CH_LAYOUT_SURROUND|CH_LOW_FREQUENCY|\
                                          CH_BACK_LEFT|CH_BACK_RIGHT|\
                                          CH_FRONT_LEFT_OF_CENTER|CH_FRONT_RIGHT_OF_CENTER)

Definition at line 383 of file avcodec.h.

#define CH_LAYOUT_MONO (CH_FRONT_CENTER)

Definition at line 376 of file avcodec.h.

Referenced by ape_decode_init(), avcodec_guess_channel_layout(), cook_decode_init(), decode_init(), imc_decode_init(), mpc7_decode_init(), mpc8_decode_init(), smka_decode_init(), and wavpack_decode_init().

#define CH_LAYOUT_QUAD (CH_LAYOUT_STEREO|CH_BACK_LEFT|CH_BACK_RIGHT)

Definition at line 379 of file avcodec.h.

Referenced by avcodec_guess_channel_layout().

#define CH_LAYOUT_STEREO (CH_FRONT_LEFT|CH_FRONT_RIGHT)

Definition at line 377 of file avcodec.h.

Referenced by ape_decode_init(), avcodec_guess_channel_layout(), cook_decode_init(), dca_decode_frame(), imc_decode_init(), mpc7_decode_init(), mpc8_decode_init(), smka_decode_init(), and wavpack_decode_init().

#define CH_LAYOUT_STEREO_DOWNMIX (CH_STEREO_LEFT|CH_STEREO_RIGHT)

Definition at line 386 of file avcodec.h.

#define CH_LAYOUT_SURROUND (CH_LAYOUT_STEREO|CH_FRONT_CENTER)

Definition at line 378 of file avcodec.h.

Referenced by avcodec_guess_channel_layout().

#define CH_LOW_FREQUENCY 0x00000008

Definition at line 357 of file avcodec.h.

Referenced by dca_decode_frame().

#define CH_SIDE_LEFT 0x00000200

Definition at line 363 of file avcodec.h.

#define CH_SIDE_RIGHT 0x00000400

Definition at line 364 of file avcodec.h.

#define CH_STEREO_LEFT 0x20000000

Stereo downmix.

Definition at line 372 of file avcodec.h.

#define CH_STEREO_RIGHT 0x40000000

See CH_STEREO_LEFT.

Definition at line 373 of file avcodec.h.

#define CH_TOP_BACK_CENTER 0x00010000

Definition at line 370 of file avcodec.h.

#define CH_TOP_BACK_LEFT 0x00008000

Definition at line 369 of file avcodec.h.

#define CH_TOP_BACK_RIGHT 0x00020000

Definition at line 371 of file avcodec.h.

#define CH_TOP_CENTER 0x00000800

Definition at line 365 of file avcodec.h.

#define CH_TOP_FRONT_CENTER 0x00002000

Definition at line 367 of file avcodec.h.

#define CH_TOP_FRONT_LEFT 0x00001000

Definition at line 366 of file avcodec.h.

#define CH_TOP_FRONT_RIGHT 0x00004000

Definition at line 368 of file avcodec.h.

#define CODEC_CAP_DELAY 0x0020

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.

Definition at line 528 of file avcodec.h.

Referenced by avcodec_decode_audio2(), avcodec_decode_video(), avcodec_encode_audio(), and avcodec_encode_video().

#define CODEC_CAP_DR1 0x0002

Codec uses get_buffer() for allocating buffers.

direct rendering method 1

Definition at line 518 of file avcodec.h.

Referenced by show_formats().

#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001

Decoder can use draw_horiz_band callback.

Definition at line 513 of file avcodec.h.

Referenced by show_formats().

#define CODEC_CAP_HWACCEL 0x0010

Definition at line 523 of file avcodec.h.

#define CODEC_CAP_HWACCEL_VDPAU 0x0080

Codec can export data for HW decoding (VDPAU).

Definition at line 537 of file avcodec.h.

Referenced by decode_chunks(), decode_frame(), decode_init(), decode_nal_units(), execute_decode_slices(), ff_er_frame_end(), mpeg_get_pixelformat(), MPV_frame_end(), vc1_decode_frame(), and vcr2_init_sequence().

#define CODEC_CAP_PARSE_ONLY 0x0004

Definition at line 520 of file avcodec.h.

Referenced by open_parser().

#define CODEC_CAP_SMALL_LAST_FRAME 0x0040

Codec can be fed a final frame with a smaller size.

This can be used to prevent truncation of the last audio samples.

Definition at line 533 of file avcodec.h.

Referenced by output_packet().

#define CODEC_CAP_TRUNCATED 0x0008

Definition at line 521 of file avcodec.h.

Referenced by show_formats(), and video_decode_example().

#define CODEC_FLAG2_8X8DCT 0x00000080

H.264 high profile 8x8 transform.

Definition at line 493 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_AUD 0x00000200

H.264 access unit delimiters.

Definition at line 495 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_BIT_RESERVOIR 0x00020000

Use a bit reservoir when encoding if possible.

Definition at line 503 of file avcodec.h.

Referenced by MP3lame_encode_init().

#define CODEC_FLAG2_BPYRAMID 0x00000010

H.264 allow B-frames to be used as references.

Definition at line 490 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_BRDO 0x00000400

B-frame rate-distortion optimization.

Definition at line 496 of file avcodec.h.

#define CODEC_FLAG2_CHUNKS 0x00008000

Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.

Definition at line 501 of file avcodec.h.

Referenced by decode_frame(), decode_nal_units(), and decode_slice_header().

#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000

timecode is in drop frame format.

Definition at line 499 of file avcodec.h.

Referenced by encode_init(), and mpeg1_encode_sequence_header().

#define CODEC_FLAG2_FAST 0x00000001

Allow non spec compliant speedup tricks.

Definition at line 486 of file avcodec.h.

Referenced by decode_slice_header(), ff_h263_decode_frame(), filter_mb_fast(), mpeg_decode_mb(), and stream_component_open().

#define CODEC_FLAG2_FASTPSKIP 0x00000100

H.264 fast pskip.

Definition at line 494 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_INTRA_VLC 0x00000800

Use MPEG-2 intra VLC table.

Definition at line 497 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG2_LOCAL_HEADER 0x00000008

Place global headers at every keyframe instead of in extradata.

Definition at line 489 of file avcodec.h.

Referenced by av_parser_change(), dump_extradata(), new_video_stream(), and remove_extradata().

#define CODEC_FLAG2_MBTREE 0x00040000

Use macroblock tree ratecontrol (x264 only).

Definition at line 504 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_MEMC_ONLY 0x00001000

Only do ME/MC (I frames -> ref, P frame -> ME+MC).

Definition at line 498 of file avcodec.h.

Referenced by encode_frame().

#define CODEC_FLAG2_MIXED_REFS 0x00000040

H.264 one reference per partition, as opposed to one reference per macroblock.

Definition at line 492 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_NO_OUTPUT 0x00000004

Skip bitstream encoding.

Definition at line 488 of file avcodec.h.

Referenced by encode_bgr_bitstream().

#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000

Use MPEG-2 nonlinear quantizer.

Definition at line 502 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG2_SKIP_RD 0x00004000

RD optimal MB level residual skipping.

Definition at line 500 of file avcodec.h.

Referenced by encode_thread().

#define CODEC_FLAG2_STRICT_GOP 0x00000002

Strictly enforce GOP size.

Definition at line 487 of file avcodec.h.

Referenced by select_input_picture().

#define CODEC_FLAG2_WPRED 0x00000020

H.264 weighted biprediction for B-frames.

Definition at line 491 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG_4MV 0x0004

4 MV per MB allowed / advanced prediction for H.263.

Definition at line 449 of file avcodec.h.

Referenced by check_input_motion(), encode_init(), ff_estimate_p_frame_motion(), ff_fix_long_p_mvs(), ff_xvid_encode_init(), MPV_encode_init(), and parse_ffconfig().

#define CODEC_FLAG_AC_PRED 0x01000000

H.263 advanced intra coding / MPEG-4 AC prediction.

Definition at line 475 of file avcodec.h.

Referenced by ff_xvid_encode_init(), and MPV_encode_init().

#define CODEC_FLAG_ALT_SCAN 0x00100000

Use alternate scan.

Definition at line 471 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG_BITEXACT 0x00800000

Use only bitexact stuff (except (I)DCT).

Definition at line 473 of file avcodec.h.

Referenced by dsputil_init_mmx(), dsputil_init_pix_mmx(), dsputilenc_init_mmx(), encode_block(), ff_dct_common_init(), ff_dsputil_init_neon(), float_init_altivec(), jpeg_put_comments(), mkv_write_header(), mkv_write_trailer(), mov_write_udta_tag(), MPV_common_init_mmx(), mxf_write_identification(), ogg_write_header(), parse_ffconfig(), read_ffserver_streams(), and write_globalinfo().

#define CODEC_FLAG_CBP_RD 0x04000000

Use rate distortion optimization for cbp.

Definition at line 477 of file avcodec.h.

Referenced by encode_mb_internal(), and MPV_encode_init().

#define CODEC_FLAG_CLOSED_GOP 0x80000000

Definition at line 485 of file avcodec.h.

Referenced by ff_xvid_encode_init(), mpeg1_encode_sequence_header(), MPV_encode_init(), and select_input_picture().

#define CODEC_FLAG_EMU_EDGE 0x4000

Don't draw edges.

Definition at line 464 of file avcodec.h.

Referenced by avcodec_default_get_buffer(), chroma_4mv_motion(), chroma_4mv_motion_lowres(), decode_frame(), decode_slice_header(), ff_mspel_motion(), ff_rv34_decode_init(), gmc1_motion(), halfpel_interpol(), hpel_motion(), mjpeg_decode_scan(), MPV_frame_end(), MPV_motion_internal(), opt_input_file(), stream_component_open(), svq3_mc_dir_part(), and vc1_decode_init().

#define CODEC_FLAG_EXTERN_HUFF 0x1000

Use external Huffman table (for MJPEG).

Definition at line 462 of file avcodec.h.

Referenced by ff_mjpeg_decode_init().

#define CODEC_FLAG_GLOBAL_HEADER 0x00400000

Place global headers in extradata instead of every keyframe.

Definition at line 472 of file avcodec.h.

Referenced by add_video_stream(), av_parser_change(), av_write_header(), Faac_encode_init(), ff_xvid_encode_init(), ffm_read_header(), ffm_write_header(), new_audio_stream(), new_video_stream(), remove_extradata(), and X264_init().

#define CODEC_FLAG_GMC 0x0020

Use GMC.

Definition at line 451 of file avcodec.h.

Referenced by ff_xvid_encode_init().

#define CODEC_FLAG_GRAY 0x2000

Only decode/encode grayscale.

Definition at line 463 of file avcodec.h.

Referenced by backup_mb_border(), dct_get(), decode_slice(), dnxhd_decode_macroblock(), encode_mb_internal(), ff_mspel_motion(), ff_wmv2_add_mb(), ff_xvid_encode_init(), ff_xvmc_decode_mb(), gmc1_motion(), gmc_motion(), hl_decode_mb_internal(), idct_put(), indeo3_decode_frame(), iv_decode_frame(), mc_dir_part(), mpeg_motion_internal(), mpeg_motion_lowres(), MPV_decode_mb_internal(), MPV_motion_internal(), MPV_motion_lowres(), qpel_motion(), render_slice(), svq1_decode_frame(), svq3_mc_dir_part(), tgq_idct_put_mb(), tgq_idct_put_mb_dconly(), tqi_idct_put(), vc1_decode_b_mb(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_init(), vc1_decode_p_mb(), vc1_interp_mc(), vc1_mc_1mv(), vc1_mc_4mv_chroma(), vc1_put_block(), vp3_decode_frame(), and xchg_mb_border().

#define CODEC_FLAG_H263P_AIV 0x00000008

H.263 alternative inter VLC.

Definition at line 479 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000

Definition at line 482 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG_H263P_UMV 0x02000000

unlimited motion vector

Definition at line 476 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG_INPUT_PRESERVED 0x0100

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.

Definition at line 459 of file avcodec.h.

Referenced by estimate_best_b_count(), and load_input_picture().

#define CODEC_FLAG_INTERLACED_DCT 0x00040000

Use interlaced DCT.

Definition at line 469 of file avcodec.h.

Referenced by dnxhd_encode_init(), do_video_out(), dv_guess_dct_mode(), encode_frame(), encode_mb_internal(), ff_dnxhd_find_cid(), MPV_encode_init(), and X264_init().

#define CODEC_FLAG_INTERLACED_ME 0x20000000

interlaced motion estimation

Definition at line 483 of file avcodec.h.

Referenced by check_input_motion(), do_video_out(), encode_picture(), ff_estimate_b_frame_motion(), ff_estimate_p_frame_motion(), libdirac_encode_init(), libschroedinger_encode_init(), MPV_common_init(), and MPV_encode_init().

#define CODEC_FLAG_LOOP_FILTER 0x00000800

loop filter

Definition at line 481 of file avcodec.h.

Referenced by MPV_encode_init(), and X264_init().

#define CODEC_FLAG_LOW_DELAY 0x00080000

Force low delay.

Definition at line 470 of file avcodec.h.

Referenced by decode_nal_units(), decode_vop_header(), ff_mpeg4_decode_picture_header(), mpeg1_decode_sequence(), mpeg_decode_sequence_extension(), and MPV_encode_init().

#define CODEC_FLAG_MV0 0x0040

Always try a MB with MV=<0,0>.

Definition at line 452 of file avcodec.h.

Referenced by epzs_motion_search_internal(), ff_estimate_b_frame_motion(), and ff_estimate_p_frame_motion().

#define CODEC_FLAG_NORMALIZE_AQP 0x00020000

Normalize adaptive quantization.

Definition at line 468 of file avcodec.h.

Referenced by adaptive_quantization().

#define CODEC_FLAG_OBMC 0x00000001

OBMC.

Definition at line 480 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG_PART 0x0080

Use data partitioning.

Definition at line 453 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG_PASS1 0x0200

Use internal 2pass ratecontrol in first pass mode.

Definition at line 460 of file avcodec.h.

Referenced by av_encode(), avcodec_string(), encode_bgr_bitstream(), encode_frame(), encode_init(), encode_thread(), ff_xvid_encode_init(), MPV_encode_picture(), new_video_stream(), write_slice_end(), and X264_init().

#define CODEC_FLAG_PASS2 0x0400

Use internal 2pass ratecontrol in second pass mode.

Definition at line 461 of file avcodec.h.

Referenced by av_encode(), avcodec_string(), encode_frame(), encode_init(), encode_picture(), ff_rate_control_init(), ff_rate_control_uninit(), ff_rate_estimate_qscale(), ff_xvid_encode_init(), MPV_encode_init(), new_video_stream(), select_input_picture(), and X264_init().

#define CODEC_FLAG_PSNR 0x8000

error[?] variables will be set during encoding.

Definition at line 465 of file avcodec.h.

Referenced by do_video_stats(), encode_frame(), encode_thread(), estimate_best_b_count(), MPV_decode_mb_internal(), new_video_stream(), print_report(), and X264_init().

#define CODEC_FLAG_QP_RD 0x08000000

Use rate distortion optimization for qp selectioon.

Definition at line 478 of file avcodec.h.

Referenced by encode_mb_internal(), encode_thread(), and MPV_encode_init().

#define CODEC_FLAG_QPEL 0x0010

Use qpel MC.

Definition at line 450 of file avcodec.h.

Referenced by encode_frame(), encode_init(), encode_q_branch(), estimate_best_b_count(), ff_init_me(), ff_xvid_encode_init(), get_flags(), and MPV_encode_init().

#define CODEC_FLAG_QSCALE 0x0002

Use fixed qscale.

Definition at line 448 of file avcodec.h.

Referenced by encode_frame(), encode_init(), encode_picture(), estimate_best_b_count(), Faac_encode_init(), ff_xvid_encode_init(), libdirac_encode_init(), libschroedinger_encode_init(), MP3lame_encode_init(), MPV_encode_init(), new_audio_stream(), new_video_stream(), oggvorbis_init_encoder(), parse_ffconfig(), and vorbis_encode_init().

#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000

Will reserve space for SVCD scan offset user data.

Definition at line 484 of file avcodec.h.

Referenced by mpeg1_encode_picture_header().

#define CODEC_FLAG_TRUNCATED 0x00010000

Definition at line 466 of file avcodec.h.

Referenced by ff_h263_decode_frame(), get_consumed_bytes(), mpeg_decode_frame(), and video_decode_example().

#define FF_AA_AUTO 0

Definition at line 1737 of file avcodec.h.

#define FF_AA_FASTINT 1

Definition at line 1738 of file avcodec.h.

#define FF_AA_FLOAT 3

Definition at line 1740 of file avcodec.h.

Referenced by decode_init().

#define FF_AA_INT 2

Definition at line 1739 of file avcodec.h.

#define FF_ALPHA_SEMI_TRANSP 0x0002

Definition at line 2621 of file avcodec.h.

Referenced by get_alpha_info_pal8(), and img_get_alpha_info().

#define FF_ALPHA_TRANSP 0x0001

Definition at line 2620 of file avcodec.h.

Referenced by get_alpha_info_pal8(), and img_get_alpha_info().

#define FF_ASPECT_EXTENDED 15

Definition at line 802 of file avcodec.h.

Referenced by decode_vol_header(), and h263_decode_picture_header().

#define FF_B_TYPE 3

Bi-dir predicted.

Definition at line 690 of file avcodec.h.

Referenced by alloc_picture(), av_get_pict_type_char(), cavs_decode_frame(), compute_pkt_fields(), decode_cabac_mb_ref(), decode_cabac_mb_skip(), decode_cabac_mb_type_b(), decode_chunks(), decode_frame(), decode_mb_cabac(), decode_mb_cavlc(), decode_mb_skip(), decode_nal_units(), decode_pic(), decode_slice(), decode_slice_header(), decode_vop_header(), dirac_combine_frame(), direct_ref_list_init(), encode_mb_internal(), encode_picture(), encode_thread(), epzs_motion_search_internal(), estimate_best_b_count(), estimate_motion_thread(), ff_draw_horiz_band(), ff_er_frame_end(), ff_get_best_fcode(), ff_h263_decode_frame(), ff_h263_decode_mb(), ff_init_block_index(), ff_mpeg4_decode_mb(), ff_mpeg4_get_video_packet_prefix_length(), ff_print_debug_info(), ff_rate_control_init(), ff_rate_estimate_qscale(), ff_rv34_decode_frame(), ff_vdpau_mpeg_picture_complete(), ff_vdpau_vc1_decode_picture(), ff_xvid_encode_frame(), ff_xvid_rate_estimate_qscale(), ff_xvmc_field_start(), fill_caches(), fill_default_ref_list(), filter_mb_dir(), filter_mb_fast(), get_diff_limited_q(), get_qminmax(), get_qscale(), gxf_write_media_preamble(), h261_decode_frame(), h263_decode_picture_header(), init_pass2(), mpeg1_decode_picture(), mpeg1_encode_mb_internal(), mpeg1_encode_picture_header(), mpeg4_decode_video_packet_header(), mpeg4_is_resync(), mpeg_decode_mb(), mpeg_decode_picture_coding_extension(), mpeg_decode_slice(), MPV_decode_mb_internal(), MPV_encode_picture(), MPV_frame_end(), MPV_frame_start(), MPV_motion_internal(), MPV_motion_lowres(), output_picture2(), pred_weight_table(), rv10_decode_frame(), rv10_decode_packet(), rv20_decode_picture_header(), rv30_decode_mb_info(), rv34_decode_mb_header(), rv34_decode_slice(), select_input_picture(), set_frame_distances(), set_mv_intra(), slice_end(), svq1_decode_frame(), svq3_decode_frame(), svq3_decode_mb(), vc1_decode_blocks(), vc1_decode_frame(), vc1_parse_frame_header(), vc1_parse_frame_header_adv(), write_back_motion(), and X264_frame().

#define FF_BI_TYPE 7

Definition at line 694 of file avcodec.h.

Referenced by av_get_pict_type_char(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

#define FF_BUFFER_HINTS_PRESERVE 0x04

Definition at line 698 of file avcodec.h.

Referenced by aasc_decode_frame(), bethsoftvid_decode_init(), cinepak_decode_frame(), cinvideo_decode_frame(), decode_frame(), flic_decode_frame_15_16BPP(), flic_decode_frame_8BPP(), ir2_decode_frame(), mp_decode_frame(), msrle_decode_frame(), msvideo1_decode_frame(), qtrle_decode_frame(), rpza_decode_frame(), seqvideo_decode_frame(), smc_decode_frame(), truemotion1_decode_frame(), and ulti_decode_frame().

#define FF_BUFFER_HINTS_READABLE 0x02

Definition at line 697 of file avcodec.h.

Referenced by avcodec_default_reget_buffer(), decode_frame(), qtrle_decode_frame(), and smc_decode_frame().

#define FF_BUFFER_HINTS_REUSABLE 0x08

Definition at line 699 of file avcodec.h.

Referenced by aasc_decode_frame(), bethsoftvid_decode_init(), cinepak_decode_frame(), cinvideo_decode_frame(), decode_frame(), flic_decode_frame_15_16BPP(), flic_decode_frame_8BPP(), ir2_decode_frame(), mp_decode_frame(), msrle_decode_frame(), msvideo1_decode_frame(), qtrle_decode_frame(), rpza_decode_frame(), seqvideo_decode_frame(), smc_decode_frame(), truemotion1_decode_frame(), and ulti_decode_frame().

#define FF_BUFFER_HINTS_VALID 0x01

#define FF_BUFFER_TYPE_COPY 8

Just a (modified) copy of some other buffer, don't deallocate anything.

Definition at line 685 of file avcodec.h.

Referenced by ff_copy_picture(), and ff_print_debug_info().

#define FF_BUFFER_TYPE_INTERNAL 1

Definition at line 682 of file avcodec.h.

Referenced by avcodec_default_get_buffer(), avcodec_default_reget_buffer(), avcodec_default_release_buffer(), ff_mpeg_flush(), and select_input_picture().

#define FF_BUFFER_TYPE_SHARED 4

Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared.

Definition at line 684 of file avcodec.h.

Referenced by alloc_picture(), estimate_best_b_count(), free_picture(), select_input_picture(), and skip_check().

#define FF_BUFFER_TYPE_USER 2

direct rendering buffers (image is (de)allocated by user)

Definition at line 683 of file avcodec.h.

Referenced by ff_mpeg_flush(), and select_input_picture().

#define FF_BUG_AC_VLC 0

Will be removed, libavcodec can now handle these non-compliant files by default.

Definition at line 1007 of file avcodec.h.

#define FF_BUG_AMV 32

Definition at line 1006 of file avcodec.h.

Referenced by get_amv().

#define FF_BUG_AUTODETECT 1

autodetection

Definition at line 1001 of file avcodec.h.

Referenced by decode_slice(), and ff_h263_decode_frame().

#define FF_BUG_DC_CLIP 4096

Definition at line 1014 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and ff_mpeg4_pred_dc().

#define FF_BUG_DIRECT_BLOCKSIZE 512

Definition at line 1011 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and ff_mpeg4_set_direct_mv().

#define FF_BUG_EDGE 1024

Definition at line 1012 of file avcodec.h.

Referenced by decode_vop_header(), and ff_h263_decode_frame().

#define FF_BUG_HPEL_CHROMA 2048

Definition at line 1013 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and mpeg_motion_internal().

#define FF_BUG_MS 8192

Work around various bugs in Microsoft's broken decoders.

Definition at line 1015 of file avcodec.h.

#define FF_BUG_NO_PADDING 16

Definition at line 1005 of file avcodec.h.

Referenced by decode_slice(), ff_h263_decode_frame(), and mpeg4_is_resync().

#define FF_BUG_OLD_MSMPEG4 2

Definition at line 1002 of file avcodec.h.

#define FF_BUG_QPEL_CHROMA 64

Definition at line 1008 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and qpel_motion().

#define FF_BUG_QPEL_CHROMA2 256

Definition at line 1010 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and qpel_motion().

#define FF_BUG_STD_QPEL 128

Definition at line 1009 of file avcodec.h.

Referenced by ff_h263_decode_frame().

#define FF_BUG_UMP4 8

Definition at line 1004 of file avcodec.h.

Referenced by decode_vop_header(), and ff_h263_decode_frame().

#define FF_BUG_XVID_ILACE 4

Definition at line 1003 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and ff_mpeg4_decode_mb().

#define FF_CMP_BIT 5

Definition at line 1440 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_CHROMA 256

Definition at line 1450 of file avcodec.h.

Referenced by check_bidir_mv(), ff_estimate_p_frame_motion(), ff_init_me(), h263_mv4_search(), and X264_init().

#define FF_CMP_DCT 3

Definition at line 1438 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_DCT264 14

Definition at line 1449 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_DCTMAX 13

Definition at line 1448 of file avcodec.h.

Referenced by add_codec(), and ff_set_cmp().

#define FF_CMP_NSSE 10

Definition at line 1445 of file avcodec.h.

Referenced by ff_set_cmp(), get_penalty_factor(), and sse_mb().

#define FF_CMP_PSNR 4

Definition at line 1439 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_RD 6

Definition at line 1441 of file avcodec.h.

Referenced by ff_set_cmp(), get_penalty_factor(), h263_mv4_search(), and interlaced_search().

#define FF_CMP_SAD 0

Definition at line 1435 of file avcodec.h.

Referenced by ff_init_me(), ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_SATD 2

Definition at line 1437 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_SSE 1

Definition at line 1436 of file avcodec.h.

Referenced by ff_estimate_p_frame_motion(), ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_VSAD 8

Definition at line 1443 of file avcodec.h.

Referenced by ff_set_cmp().

#define FF_CMP_VSSE 9

Definition at line 1444 of file avcodec.h.

Referenced by encode_mb_internal(), and ff_set_cmp().

#define FF_CMP_W53 11

Definition at line 1446 of file avcodec.h.

Referenced by ff_set_cmp(), get_block_rd(), and get_penalty_factor().

#define FF_CMP_W97 12

Definition at line 1447 of file avcodec.h.

Referenced by ff_set_cmp(), get_block_rd(), and get_penalty_factor().

#define FF_CMP_ZERO 7

Definition at line 1442 of file avcodec.h.

Referenced by ff_set_cmp().

#define FF_CODER_TYPE_AC 1

Definition at line 1581 of file avcodec.h.

Referenced by X264_init().

#define FF_CODER_TYPE_DEFLATE 4

Definition at line 1584 of file avcodec.h.

#define FF_CODER_TYPE_RAW 2

Definition at line 1582 of file avcodec.h.

#define FF_CODER_TYPE_RLE 3

Definition at line 1583 of file avcodec.h.

#define FF_CODER_TYPE_VLC 0

Definition at line 1580 of file avcodec.h.

Referenced by libdirac_encode_init(), and libschroedinger_encode_init().

#define FF_COMMON_FRAME

Definition at line 592 of file avcodec.h.

#define FF_COMPLIANCE_EXPERIMENTAL -2

Allow nonstandardized experimental things.

Definition at line 1049 of file avcodec.h.

Referenced by encode_init(), mp3_header_compress(), and MPV_encode_init().

#define FF_COMPLIANCE_INOFFICIAL -1

Allow inofficial extensions.

Definition at line 1048 of file avcodec.h.

Referenced by find_frame_rate_index(), libgsm_init(), and MPV_encode_init().

#define FF_COMPLIANCE_NORMAL 0

Definition at line 1047 of file avcodec.h.

Referenced by encode_init(), ff_fix_long_p_mvs(), ff_get_best_fcode(), and mov_find_codec_tag().

#define FF_COMPLIANCE_STRICT 1

Strictly conform to all the things in the spec no matter what consequences.

Definition at line 1046 of file avcodec.h.

Referenced by decode_frame().

#define FF_COMPLIANCE_VERY_STRICT 2

Strictly conform to a older more strict version of the spec or reference software.

Definition at line 1045 of file avcodec.h.

#define FF_COMPRESSION_DEFAULT -1

Definition at line 2071 of file avcodec.h.

Referenced by alac_encode_init(), encode_frame(), and MP3lame_encode_init().

#define FF_DCT_ALTIVEC 5

Definition at line 1211 of file avcodec.h.

Referenced by dsputil_init_ppc(), and MPV_common_init_altivec().

#define FF_DCT_AUTO 0

Definition at line 1206 of file avcodec.h.

Referenced by dsputil_init_ppc(), dsputilenc_init_mmx(), MPV_common_init_altivec(), MPV_common_init_mlib(), and MPV_common_init_mmx().

#define FF_DCT_FAAN 6

Definition at line 1212 of file avcodec.h.

Referenced by dsputil_init().

#define FF_DCT_FASTINT 1

Definition at line 1207 of file avcodec.h.

Referenced by dsputil_init(), and parse_ffconfig().

#define FF_DCT_INT 2

Definition at line 1208 of file avcodec.h.

#define FF_DCT_MLIB 4

Definition at line 1210 of file avcodec.h.

Referenced by MPV_common_init_mlib().

#define FF_DCT_MMX 3

Definition at line 1209 of file avcodec.h.

Referenced by dsputilenc_init_mmx(), and MPV_common_init_mmx().

#define FF_DEBUG_BITSTREAM 4

Definition at line 1365 of file avcodec.h.

#define FF_DEBUG_BUFFERS 0x00008000

Definition at line 1378 of file avcodec.h.

Referenced by avcodec_default_get_buffer(), and avcodec_default_release_buffer().

#define FF_DEBUG_BUGS 0x00001000

Definition at line 1375 of file avcodec.h.

Referenced by decode_unregistered_user_data(), and ff_h263_decode_frame().

#define FF_DEBUG_DCT_COEFF 0x00000040

Definition at line 1369 of file avcodec.h.

Referenced by alloc_picture(), and MPV_decode_mb_internal().

#define FF_DEBUG_ER 0x00000400

Definition at line 1373 of file avcodec.h.

Referenced by ff_er_frame_end().

#define FF_DEBUG_MB_TYPE 8

Definition at line 1366 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_MMCO 0x00000800

Definition at line 1374 of file avcodec.h.

Referenced by execute_ref_pic_marking(), find_short(), print_long_term(), print_short_term(), and remove_short().

#define FF_DEBUG_MV 32

Definition at line 1368 of file avcodec.h.

Referenced by alloc_picture(), and opt_input_file().

#define FF_DEBUG_PICT_INFO 1

#define FF_DEBUG_PTS 0x00000200

Definition at line 1372 of file avcodec.h.

Referenced by decode_vop_header().

#define FF_DEBUG_QP 16

Definition at line 1367 of file avcodec.h.

Referenced by ff_mjpeg_decode_frame(), ff_print_debug_info(), and mjpegb_decode_frame().

#define FF_DEBUG_RC 2

Definition at line 1364 of file avcodec.h.

Referenced by ff_rate_estimate_qscale(), ff_vbv_update(), and modify_qscale().

#define FF_DEBUG_SKIP 0x00000080

Definition at line 1370 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_STARTCODE 0x00000100

Definition at line 1371 of file avcodec.h.

Referenced by decode_chunks(), decode_nal_units(), ff_mjpeg_decode_frame(), ff_mpeg4_decode_picture_header(), and mjpeg_decode_app().

#define FF_DEBUG_VIS_MB_TYPE 0x00004000

Definition at line 1377 of file avcodec.h.

Referenced by ff_print_debug_info(), and MPV_common_init().

#define FF_DEBUG_VIS_MV_B_BACK 0x00000004

Definition at line 1388 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_VIS_MV_B_FOR 0x00000002

Definition at line 1387 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_VIS_MV_P_FOR 0x00000001

Definition at line 1386 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_VIS_QP 0x00002000

Definition at line 1376 of file avcodec.h.

Referenced by ff_print_debug_info(), and MPV_common_init().

#define FF_DEFAULT_QUANT_BIAS 999999

Definition at line 1537 of file avcodec.h.

Referenced by dnxhd_encode_init(), and MPV_encode_init().

#define FF_DTG_AFD_14_9 11

Definition at line 1517 of file avcodec.h.

Referenced by video_image_display().

#define FF_DTG_AFD_16_9 10

Definition at line 1516 of file avcodec.h.

Referenced by video_image_display().

#define FF_DTG_AFD_16_9_SP_14_9 14

Definition at line 1519 of file avcodec.h.

Referenced by video_image_display().

#define FF_DTG_AFD_4_3 9

Definition at line 1515 of file avcodec.h.

Referenced by video_image_display().

#define FF_DTG_AFD_4_3_SP_14_9 13

Definition at line 1518 of file avcodec.h.

Referenced by video_image_display().

#define FF_DTG_AFD_SAME 8

Definition at line 1514 of file avcodec.h.

Referenced by video_image_display().

#define FF_DTG_AFD_SP_4_3 15

Definition at line 1520 of file avcodec.h.

Referenced by video_image_display().

#define FF_EC_DEBLOCK 2

Definition at line 1300 of file avcodec.h.

Referenced by ff_er_frame_end().

#define FF_EC_GUESS_MVS 1

Definition at line 1299 of file avcodec.h.

Referenced by guess_mv().

#define FF_ER_AGGRESSIVE 3

Definition at line 1067 of file avcodec.h.

Referenced by huffman_decode(), and mpeg_decode_slice().

#define FF_ER_CAREFUL 1

Definition at line 1065 of file avcodec.h.

Referenced by ac3_decode_frame(), and ac3_decode_init().

#define FF_ER_COMPLIANT 2

Definition at line 1066 of file avcodec.h.

Referenced by h261_decode_gob_header(), h263_decode_block(), huffman_decode(), mpeg1_decode_picture(), mpeg1_decode_sequence(), and mpeg4_decode_block().

#define FF_ER_VERY_AGGRESSIVE 4

Definition at line 1068 of file avcodec.h.

#define FF_I_TYPE 1

Intra.

Definition at line 688 of file avcodec.h.

#define FF_IDCT_ALTIVEC 8

Definition at line 1263 of file avcodec.h.

Referenced by dsputil_init_ppc(), and MPV_common_init_altivec().

#define FF_IDCT_ARM 7

Definition at line 1262 of file avcodec.h.

Referenced by dsputil_init_arm().

#define FF_IDCT_AUTO 0

Definition at line 1255 of file avcodec.h.

Referenced by dsputil_init(), dsputil_init_alpha(), dsputil_init_arm(), dsputil_init_mmi(), dsputil_init_mmx(), dsputil_init_ppc(), dsputil_init_sh4(), ff_h263_decode_frame(), MPV_common_init_altivec(), tgq_decode_init(), tqi_decode_init(), vc1_decode_init(), vcr2_init_sequence(), vp3_decode_init(), vp56_init(), and wmv2_decode_init().

#define FF_IDCT_CAVS 15

Definition at line 1270 of file avcodec.h.

Referenced by decode_pic(), and dsputil_init_mmx().

#define FF_IDCT_EA 21

Definition at line 1276 of file avcodec.h.

Referenced by dsputil_init(), tgq_calculate_qtable(), tgq_decode_init(), tqi_calculate_qtable(), and tqi_decode_init().

#define FF_IDCT_FAAN 20

Definition at line 1275 of file avcodec.h.

Referenced by dsputil_init().

#define FF_IDCT_H264 11

Definition at line 1266 of file avcodec.h.

#define FF_IDCT_INT 1

Definition at line 1256 of file avcodec.h.

Referenced by dsputil_init().

#define FF_IDCT_IPP 13

Definition at line 1268 of file avcodec.h.

Referenced by dsputil_init_arm().

#define FF_IDCT_LIBMPEG2MMX 4

Definition at line 1259 of file avcodec.h.

Referenced by dsputil_init_mmx().

#define FF_IDCT_MLIB 6

Definition at line 1261 of file avcodec.h.

Referenced by MPV_common_init_mlib().

#define FF_IDCT_PS2 5

Definition at line 1260 of file avcodec.h.

Referenced by dsputil_init_mmi().

#define FF_IDCT_SH4 9

Definition at line 1264 of file avcodec.h.

Referenced by dsputil_init_sh4().

#define FF_IDCT_SIMPLE 2

Definition at line 1257 of file avcodec.h.

Referenced by parse_ffconfig(), and vcr2_init_sequence().

#define FF_IDCT_SIMPLEALPHA 23

Definition at line 1278 of file avcodec.h.

Referenced by dsputil_init_alpha().

#define FF_IDCT_SIMPLEARM 10

Definition at line 1265 of file avcodec.h.

Referenced by dsputil_init_arm().

#define FF_IDCT_SIMPLEARMV5TE 16

Definition at line 1271 of file avcodec.h.

Referenced by dsputil_init_arm().

#define FF_IDCT_SIMPLEARMV6 17

Definition at line 1272 of file avcodec.h.

Referenced by dsputil_init_arm().

#define FF_IDCT_SIMPLEMMX 3

Definition at line 1258 of file avcodec.h.

Referenced by dsputil_init_mmx().

#define FF_IDCT_SIMPLENEON 22

Definition at line 1277 of file avcodec.h.

Referenced by dsputil_init_arm().

#define FF_IDCT_SIMPLEVIS 18

Definition at line 1273 of file avcodec.h.

Referenced by dsputil_init_vis().

#define FF_IDCT_VP3 12

Definition at line 1267 of file avcodec.h.

Referenced by dsputil_init(), dsputil_init_bfin(), dsputil_init_mmx(), render_slice(), vp3_decode_init(), and vp56_init().

#define FF_IDCT_WMV2 19

Definition at line 1274 of file avcodec.h.

Referenced by dsputil_init(), vc1_decode_init(), and wmv2_decode_init().

#define FF_IDCT_XVIDMMX 14

Definition at line 1269 of file avcodec.h.

Referenced by dsputil_init_mmx(), and ff_h263_decode_frame().

#define FF_INPUT_BUFFER_PADDING_SIZE 8

Required number of additionally allocated bytes at the end of the input bitstream for decoding.

This is mainly needed because some optimized bitstream readers read 32 or 64 bit at once and could read over the end.
Note: If the first 23 bits of the additional bytes are not 0, then damaged MPEG bitstreams could cause overread and segfault.

Definition at line 398 of file avcodec.h.

Referenced by ac3_decode_init(), aiff_read_header(), apc_read_header(), asf_read_header(), atrac3_decode_init(), audio_decode_example(), av_dup_packet(), av_find_stream_info(), av_new_packet(), av_parser_change(), av_parser_parse(), avi_read_header(), avi_read_packet(), cook_decode_init(), decode_frame(), decode_i_frame(), decode_p_frame(), decode_stream_header(), dump_extradata(), Faac_encode_init(), ff_combine_frame(), ff_h263_decode_frame(), ff_h264_decode_nal(), ff_mjpeg_decode_frame(), ff_rm_read_mdpr_codecdata(), fixup_vorbis_headers(), flac_header(), flv_get_extradata(), h264_new_extradata(), imx_dump_header(), matroska_fix_ass_packet(), matroska_read_header(), mimic_decode_frame(), mjpega_dump_header(), mov2textsub(), mov_read_esds(), mov_read_extradata(), mov_read_glbl(), mov_read_smi(), mov_read_wave(), mp3_header_compress(), mp3_header_decompress(), mp_decode_frame(), mpc7_decode_frame(), mpc8_read_header(), mpc_read_header(), noise(), oma_read_header(), rdt_parse_b64buf(), read_header(), rl2_read_header(), rm_read_audio_stream_info(), sdp_parse_fmtp_config(), text2movsub(), tiff_unpack_strip(), tqi_decode_frame(), tta_read_header(), vc1_decode_frame(), vc1_decode_init(), video_decode_example(), vmd_read_header(), and wsvqa_read_header().

#define FF_LAMBDA_MAX (256*128-1)

Definition at line 1569 of file avcodec.h.

Referenced by get_qminmax().

#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)

Definition at line 1567 of file avcodec.h.

Referenced by encode_frame(), svq1_encode_plane(), and update_qscale().

#define FF_LAMBDA_SHIFT 7

Definition at line 1566 of file avcodec.h.

Referenced by dct_quantize_refine(), dct_quantize_trellis_c(), encode_frame(), encode_mb_hq(), encode_q_branch(), estimate_best_b_count(), ff_estimate_p_frame_motion(), get_penalty_factor(), svq1_encode_plane(), and update_qscale().

#define FF_LEVEL_UNKNOWN -99

Definition at line 1837 of file avcodec.h.

Referenced by encode_init().

#define FF_LOSS_ALPHA 0x0008

loss of alpha bits

Definition at line 2558 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt(), and avcodec_get_pix_fmt_loss().

#define FF_LOSS_CHROMA 0x0020

loss of chroma (e.g.

RGB to gray conversion)

Definition at line 2560 of file avcodec.h.

Referenced by avcodec_get_pix_fmt_loss().

#define FF_LOSS_COLORQUANT 0x0010

loss due to color quantization

Definition at line 2559 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt(), and avcodec_get_pix_fmt_loss().

#define FF_LOSS_COLORSPACE 0x0004

loss due to color space conversion

Definition at line 2557 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt(), and avcodec_get_pix_fmt_loss().

#define FF_LOSS_DEPTH 0x0002

loss due to color depth change

Definition at line 2556 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt(), and avcodec_get_pix_fmt_loss().

#define FF_LOSS_RESOLUTION 0x0001

loss due to resolution change

Definition at line 2555 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt(), and avcodec_get_pix_fmt_loss().

#define FF_MAX_B_FRAMES 16

Definition at line 441 of file avcodec.h.

Referenced by estimate_best_b_count().

#define FF_MB_DECISION_BITS 1

chooses the one which needs the fewest bits

Definition at line 1631 of file avcodec.h.

Referenced by encode_thread(), and parse_ffconfig().

#define FF_MB_DECISION_RD 2

rate distortion

Definition at line 1632 of file avcodec.h.

Referenced by dnxhd_calc_bits_thread(), dnxhd_encode_picture(), dnxhd_init_rc(), encode_mb_hq(), MPV_decode_mb_internal(), and MPV_encode_init().

#define FF_MB_DECISION_SIMPLE 0

uses mb_cmp

Definition at line 1630 of file avcodec.h.

Referenced by clip_coeffs(), ff_estimate_b_frame_motion(), ff_estimate_p_frame_motion(), and MPV_encode_init().

#define FF_MIN_BUFFER_SIZE 16384

minimum encoding buffer size Used to avoid some checks during header writing.

Definition at line 404 of file avcodec.h.

Referenced by avcodec_decode_audio2(), avcodec_encode_audio(), and avcodec_encode_video().

#define FF_MM_3DNOW 0x0004

AMD 3DNOW.

Definition at line 1314 of file avcodec.h.

Referenced by dsputil_init_mmx(), dsputil_init_pix_mmx(), dsputilenc_init_mmx(), ff_fft_init(), and mm_support().

#define FF_MM_3DNOWEXT 0x0020

AMD 3DNowExt.

Definition at line 1318 of file avcodec.h.

Referenced by dsputil_init_mmx(), ff_fft_init(), and mm_support().

#define FF_MM_ALTIVEC 0x0001

standard AltiVec

Definition at line 1322 of file avcodec.h.

Referenced by component_resample(), dsputil_init_ppc(), ff_fft_init(), mm_support(), and MPV_common_init_altivec().

#define FF_MM_FORCE 0x80000000

Definition at line 1311 of file avcodec.h.

Referenced by dsputil_init_iwmmxt(), dsputil_init_mmx(), and main().

#define FF_MM_IWMMXT 0x0100

XScale IWMMXT.

Definition at line 1321 of file avcodec.h.

Referenced by dsputil_init_iwmmxt(), mm_support(), and MPV_common_init_iwmmxt().

#define FF_MM_MMX 0x0001

standard MMX

Definition at line 1313 of file avcodec.h.

Referenced by component_resample(), dsputil_init_mmx(), dsputil_init_pix_mmx(), dsputilenc_init_mmx(), ff_h263_decode_frame(), h_resample(), main(), mm_support(), mmx_emms(), and MPV_common_init_mmx().

#define FF_MM_MMXEXT 0x0002

SSE integer functions or AMD MMX ext.

Definition at line 1315 of file avcodec.h.

Referenced by dsputil_init_mmx(), dsputil_init_pix_mmx(), dsputilenc_init_mmx(), main(), mm_support(), and MPV_common_init_mmx().

#define FF_MM_SSE 0x0008

SSE functions.

Definition at line 1316 of file avcodec.h.

Referenced by dsputil_init_mmx(), ff_fft_init(), and mm_support().

#define FF_MM_SSE2 0x0010

PIV SSE2 functions.

Definition at line 1317 of file avcodec.h.

Referenced by dsputil_init_mmx(), dsputil_init_pix_mmx(), dsputilenc_init_mmx(), ff_dnxhd_init_mmx(), mm_support(), and MPV_common_init_mmx().

#define FF_MM_SSE3 0x0040

Prescott SSE3 functions.

Definition at line 1319 of file avcodec.h.

Referenced by mm_support().

#define FF_MM_SSSE3 0x0080

Conroe SSSE3 functions.

Definition at line 1320 of file avcodec.h.

Referenced by dsputil_init_mmx(), dsputilenc_init_mmx(), mm_support(), and MPV_common_init_mmx().

#define FF_P_TYPE 2

Predicted.

Definition at line 689 of file avcodec.h.

Referenced by av_get_pict_type_char(), avs_decode_frame(), bfi_decode_frame(), cmv_decode_frame(), decode_chunks(), decode_frame(), decode_mb_cabac(), decode_mb_cavlc(), decode_pic(), decode_slice_header(), decode_vop_header(), encode_frame(), encode_picture(), estimate_best_b_count(), ff_fix_long_p_mvs(), ff_h263_decode_mb(), ff_mpeg4_decode_mb(), ff_mpeg4_decode_partitions(), ff_mpeg4_get_video_packet_prefix_length(), ff_print_debug_info(), ff_rate_control_init(), ff_rate_estimate_qscale(), ff_vdpau_mpeg_picture_complete(), ff_vdpau_vc1_decode_picture(), ff_wmv2_decode_mb(), ff_xvid_encode_frame(), ff_xvmc_field_start(), flashsv_encode_frame(), flv_h263_decode_picture_header(), get_diff_limited_q(), get_qscale(), h261_decode_picture_header(), h263_decode_picture_header(), init_pass2(), mimic_decode_frame(), modify_qscale(), mpeg1_decode_picture(), mpeg1_encode_mb_internal(), mpeg1_encode_picture_header(), mpeg4_decode_partitioned_mb(), mpeg_decode_mb(), mpeg_decode_picture_coding_extension(), mpeg_decode_slice(), MPV_encode_picture(), msmpeg4_decode_picture_header(), msmpeg4v12_decode_mb(), msmpeg4v34_decode_mb(), parse(), preview_obmc(), qtrle_encode_frame(), rv10_decode_picture_header(), rv20_decode_picture_header(), rv34_decode_mb_header(), rv34_decode_mv(), rv40_decode_mb_info(), select_input_picture(), svq1_encode_frame(), svq1_encode_plane(), svq3_decode_frame(), svq3_decode_mb(), tgv_decode_frame(), vc1_decode_blocks(), vc1_decode_skip_blocks(), vc1_mc_1mv(), vc1_parse_frame_header(), vc1_parse_frame_header_adv(), vp56_decode_frame(), and X264_frame().

#define FF_PRED_LEFT 0

Definition at line 1337 of file avcodec.h.

#define FF_PRED_MEDIAN 2

Definition at line 1339 of file avcodec.h.

#define FF_PRED_PLANE 1

Definition at line 1338 of file avcodec.h.

#define FF_PROFILE_AAC_LOW 1

Definition at line 1827 of file avcodec.h.

Referenced by Faac_encode_init().

#define FF_PROFILE_AAC_LTP 3

Definition at line 1829 of file avcodec.h.

Referenced by Faac_encode_init().

#define FF_PROFILE_AAC_MAIN 0

Definition at line 1826 of file avcodec.h.

Referenced by Faac_encode_init().

#define FF_PROFILE_AAC_SSR 2

Definition at line 1828 of file avcodec.h.

Referenced by Faac_encode_init().

#define FF_PROFILE_UNKNOWN -99

Definition at line 1825 of file avcodec.h.

Referenced by encode_init(), and Faac_encode_init().

#define FF_QP2LAMBDA 118

factor to convert from H.263 QP to lambda

Definition at line 1568 of file avcodec.h.

Referenced by decode_frame(), dnxhd_encode_picture(), do_video_stats(), encode_frame(), estimate_best_b_count(), Faac_encode_init(), ff_mjpeg_decode_frame(), ff_rate_control_init(), ff_rate_estimate_qscale(), ff_xvid_encode_frame(), ff_xvid_rate_control_init(), ff_xvid_rate_estimate_qscale(), get_diff_limited_q(), init_pass2(), libdirac_encode_init(), libschroedinger_encode_init(), mjpegb_decode_frame(), MP3lame_encode_init(), new_audio_stream(), new_video_stream(), oggvorbis_init_encoder(), parse_ffconfig(), print_report(), qscale2qlog(), vorbis_encode_init(), and X264_frame().

#define FF_QSCALE_TYPE_H264 2

Definition at line 680 of file avcodec.h.

Referenced by decode_frame().

#define FF_QSCALE_TYPE_MPEG1 0

Definition at line 678 of file avcodec.h.

#define FF_QSCALE_TYPE_MPEG2 1

Definition at line 679 of file avcodec.h.

Referenced by slice_end().

#define FF_QUALITY_SCALE FF_LAMBDA_SCALE

Definition at line 1571 of file avcodec.h.

#define FF_RC_STRATEGY_XVID 1

Definition at line 920 of file avcodec.h.

Referenced by ff_rate_control_init(), ff_rate_control_uninit(), and ff_rate_estimate_qscale().

#define FF_S_TYPE 4

S(GMC)-VOP MPEG4.

Definition at line 691 of file avcodec.h.

Referenced by av_get_pict_type_char(), decode_vop_header(), encode_picture(), ff_mpeg4_decode_mb(), ff_mpeg4_get_video_packet_prefix_length(), ff_print_debug_info(), ff_xvid_encode_frame(), mpeg4_decode_partition_a(), mpeg4_decode_partitioned_mb(), and mpeg4_decode_video_packet_header().

#define FF_SI_TYPE 5

Switching Intra.

Definition at line 692 of file avcodec.h.

Referenced by av_get_pict_type_char(), decode_mb_cabac(), decode_mb_cavlc(), decode_slice_header(), and ff_print_debug_info().

#define FF_SP_TYPE 6

Switching Predicted.

Definition at line 693 of file avcodec.h.

Referenced by av_get_pict_type_char(), decode_slice_header(), and ff_print_debug_info().

#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT

Definition at line 42 of file avcodec.h.

#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)

Definition at line 44 of file avcodec.h.

Referenced by jpeg_put_comments(), mov_write_uuidusmt_tag(), and oggvorbis_encode_init().

#define LIBAVCODEC_VERSION

Value:

AV_VERSION(LIBAVCODEC_VERSION_MAJOR,    \
                                           LIBAVCODEC_VERSION_MINOR,    \
                                           LIBAVCODEC_VERSION_MICRO)

Definition at line 39 of file avcodec.h.

#define LIBAVCODEC_VERSION_INT

Value:

AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                               LIBAVCODEC_VERSION_MINOR, \
                                               LIBAVCODEC_VERSION_MICRO)

Definition at line 36 of file avcodec.h.

Referenced by avcodec_version().

#define LIBAVCODEC_VERSION_MAJOR 52

Definition at line 32 of file avcodec.h.

#define LIBAVCODEC_VERSION_MICRO 1

Definition at line 34 of file avcodec.h.

#define LIBAVCODEC_VERSION_MINOR 20

Definition at line 33 of file avcodec.h.

#define MB_TYPE_16x16 0x0008

#define MB_TYPE_16x8 0x0010

Definition at line 544 of file avcodec.h.

Referenced by decode_mb_cabac(), decode_mb_cavlc(), ff_mpeg4_decode_mb(), ff_mpeg4_set_direct_mv(), filter_mb_dir(), filter_mb_fast(), get_dct8x8_allowed(), mpeg_decode_mb(), and pred_direct_motion().

#define MB_TYPE_8x16 0x0020

Definition at line 545 of file avcodec.h.

Referenced by filter_mb_dir(), filter_mb_fast(), and get_dct8x8_allowed().

#define MB_TYPE_8x8 0x0040

Definition at line 546 of file avcodec.h.

Referenced by ff_h263_decode_mb(), ff_h263_update_motion_val(), ff_mpeg4_decode_mb(), ff_mpeg4_set_direct_mv(), get_dct8x8_allowed(), mpeg4_decode_partition_a(), pred_direct_motion(), and preview_obmc().

#define MB_TYPE_ACPRED 0x0200

Definition at line 549 of file avcodec.h.

Referenced by ff_h263_decode_mb(), ff_mpeg4_decode_mb(), and mpeg4_decode_partition_b().

#define MB_TYPE_CBP 0x00020000

Definition at line 560 of file avcodec.h.

Referenced by mpeg_decode_mb().

#define MB_TYPE_DIRECT2 0x0100

Definition at line 548 of file avcodec.h.

Referenced by decode_mb_skip(), ff_mpeg4_decode_mb(), ff_mpeg4_set_direct_mv(), get_dct8x8_allowed(), and pred_direct_motion().

#define MB_TYPE_GMC 0x0400

Definition at line 550 of file avcodec.h.

Referenced by ff_mpeg4_decode_mb(), and mpeg4_decode_partition_a().

#define MB_TYPE_INTERLACED 0x0080

Definition at line 547 of file avcodec.h.

Referenced by decode_mb_cabac(), decode_mb_cavlc(), decode_mb_skip(), ff_mpeg4_decode_mb(), ff_mpeg4_set_direct_mv(), and mpeg_decode_mb().

#define MB_TYPE_INTRA16x16 0x0002

Definition at line 541 of file avcodec.h.

Referenced by rv34_decode_mb_header(), and svq3_decode_mb().

#define MB_TYPE_INTRA4x4 0x0001

Definition at line 540 of file avcodec.h.

Referenced by ff_er_frame_end(), and svq3_decode_mb().

#define MB_TYPE_INTRA_PCM 0x0004

Definition at line 542 of file avcodec.h.

#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)

Definition at line 556 of file avcodec.h.

Referenced by ff_er_frame_end(), ff_h263_decode_mb(), ff_h263_update_motion_val(), ff_mpeg4_decode_mb(), h261_decode_mb(), h261_decode_mb_skipped(), mpeg4_decode_partition_a(), mpeg_decode_mb(), msmpeg4v34_decode_mb(), parse_mb_skip(), pred_direct_motion(), preview_obmc(), and rv34_pred_mv_b().

#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)

Definition at line 558 of file avcodec.h.

Referenced by ff_mpeg4_decode_mb(), ff_mpeg4_set_direct_mv(), mpeg_decode_mb(), and pred_direct_motion().

#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)

Definition at line 557 of file avcodec.h.

Referenced by pred_direct_motion(), and rv34_pred_mv_b().

#define MB_TYPE_P0L0 0x1000

Definition at line 552 of file avcodec.h.

Referenced by decode_mb_skip(), and pred_direct_motion().

#define MB_TYPE_P0L1 0x4000

Definition at line 554 of file avcodec.h.

Referenced by decode_mb_skip(), and pred_direct_motion().

#define MB_TYPE_P1L0 0x2000

Definition at line 553 of file avcodec.h.

Referenced by decode_mb_skip().

#define MB_TYPE_P1L1 0x8000

Definition at line 555 of file avcodec.h.

#define MB_TYPE_QUANT 0x00010000

Definition at line 559 of file avcodec.h.

Referenced by mpeg_decode_mb().

#define MB_TYPE_SKIP 0x0800

Definition at line 551 of file avcodec.h.

Referenced by decode_mb_cabac(), decode_mb_skip(), ff_h263_decode_mb(), ff_mpeg4_decode_mb(), filter_mb_dir(), h261_decode_mb_skipped(), mpeg4_decode_partition_a(), mpeg_decode_mb(), msmpeg4v34_decode_mb(), parse_mb_skip(), preview_obmc(), svq3_decode_mb(), and vc1_decode_p_mb().

#define PARSER_FLAG_COMPLETE_FRAMES 0x0001

Definition at line 3008 of file avcodec.h.

Referenced by av_find_stream_info(), av_read_frame_internal(), cavsvideo_parse(), dca_parse(), dirac_parse(), dnxhd_parse(), h264_parse(), mpeg4video_parse(), mpegvideo_parse(), and vc1_parse().

#define SLICE_FLAG_ALLOW_FIELD 0x0002

allow draw_horiz_band() with field slices (MPEG2 field pics)

Definition at line 1614 of file avcodec.h.

Referenced by ff_draw_horiz_band().

#define SLICE_FLAG_ALLOW_PLANE 0x0004

allow draw_horiz_band() with 1 component at a time (SVQ1)

Definition at line 1615 of file avcodec.h.

#define SLICE_FLAG_CODED_ORDER 0x0001

draw_horiz_band() is called in coded order instead of display

Definition at line 1613 of file avcodec.h.

Referenced by ff_draw_horiz_band().

#define X264_PART_B8X8 0x100

Definition at line 2028 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_I4X4 0x001

Definition at line 2024 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_I8X8 0x002

Definition at line 2025 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_P4X4 0x020

Definition at line 2027 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_P8X8 0x010

Definition at line 2026 of file avcodec.h.

Referenced by X264_init().

Typedef Documentation

typedef struct AVPaletteControl attribute_deprecated

typedef struct ReSampleContext ReSampleContext

Definition at line 2426 of file avcodec.h.

Enumeration Type Documentation

enum AVDiscard

Enumerator:

AVDISCARD_NONE	discard nothing
AVDISCARD_DEFAULT	discard useless packets like 0 size packets in avi
AVDISCARD_NONREF	discard all non reference
AVDISCARD_BIDIR	discard all bidirectional frames
AVDISCARD_NONKEY	discard all frames except keyframes
AVDISCARD_ALL	discard all

Definition at line 423 of file avcodec.h.

enum AVLockOp

Lock operation used by lockmgr.

Enumerator:

AV_LOCK_CREATE	Create a mutex.
AV_LOCK_OBTAIN	Lock the mutex.
AV_LOCK_RELEASE	Unlock the mutex.
AV_LOCK_DESTROY	Free mutex resources.

Definition at line 3228 of file avcodec.h.

enum AVSubtitleType

Enumerator:

SUBTITLE_NONE
SUBTITLE_BITMAP	A bitmap, pict will be set.
SUBTITLE_TEXT	Plain text, the text field must be set by the decoder and is authoritative. ass and pict fields may contain approximations.
SUBTITLE_ASS	Formatted text, the ass field must be set by the decoder and is authoritative. pict and text fields may contain approximations.

Definition at line 2370 of file avcodec.h.

enum CodecID

Identifies 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.

Enumerator:

CODEC_ID_NONE
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_XVID
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_PCM_S16LE
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_ADPCM_IMA_QT
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_AMR_NB
CODEC_ID_AMR_WB
CODEC_ID_RA_144
CODEC_ID_RA_288
CODEC_ID_ROQ_DPCM
CODEC_ID_INTERPLAY_DPCM
CODEC_ID_XAN_DPCM
CODEC_ID_SOL_DPCM
CODEC_ID_MP2
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
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_DVD_SUBTITLE
CODEC_ID_DVB_SUBTITLE
CODEC_ID_TEXT	raw UTF-8 text
CODEC_ID_XSUB
CODEC_ID_SSA
CODEC_ID_MOV_TEXT
CODEC_ID_TTF
CODEC_ID_PROBE	codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it
CODEC_ID_MPEG2TS	_FAKE_ codec to indicate a raw MPEG-2 TS stream (only used by libavformat)

Definition at line 62 of file avcodec.h.

enum CodecType

Enumerator:

CODEC_TYPE_UNKNOWN
CODEC_TYPE_VIDEO
CODEC_TYPE_AUDIO
CODEC_TYPE_DATA
CODEC_TYPE_SUBTITLE
CODEC_TYPE_ATTACHMENT
CODEC_TYPE_NB

Definition at line 330 of file avcodec.h.

enum Motion_Est_ID

motion estimation type.

Enumerator:

ME_ZERO	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

Definition at line 410 of file avcodec.h.

enum SampleFormat

all in native-endian format

Enumerator:

SAMPLE_FMT_NONE
SAMPLE_FMT_U8	unsigned 8 bits
SAMPLE_FMT_S16	signed 16 bits
SAMPLE_FMT_S32	signed 32 bits
SAMPLE_FMT_FLT	float
SAMPLE_FMT_DBL	double
SAMPLE_FMT_NB	Number of sample formats. DO NOT USE if dynamically linking to libavcodec.

Definition at line 343 of file avcodec.h.

Function Documentation

int audio_resample	(	ReSampleContext *	s,
		short *	output,
		short *	input,
		int	nb_samples
	)

Definition at line 234 of file resample.c.

Referenced by do_audio_out().

void audio_resample_close ( ReSampleContext * s )

Definition at line 365 of file resample.c.

Referenced by av_encode().

attribute_deprecated ReSampleContext* audio_resample_init	(	int	output_channels,
		int	input_channels,
		int	output_rate,
		int	input_rate
	)

Deprecated:: Use av_audio_resample_init() instead.

Definition at line 222 of file resample.c.

ReSampleContext* av_audio_resample_init	(	int	output_channels,
		int	input_channels,
		int	output_rate,
		int	input_rate,
		enum SampleFormat	sample_fmt_out,
		enum SampleFormat	sample_fmt_in,
		int	filter_length,
		int	log2_phase_count,
		int	linear,
		double	cutoff
	)

Initializes audio resampling context.

Parameters:

	output_channels	number of output channels
	input_channels	number of input channels
	output_rate	output sample rate
	input_rate	input sample rate
	sample_fmt_out	requested output sample format
	sample_fmt_in	input sample format
	filter_length	length of each FIR filter in the filterbank relative to the cutoff freq
	log2_phase_count	log2 of the number of entries in the polyphase filterbank
	linear	If 1 then the used FIR filter will be linearly interpolated between the 2 closest, if 0 the closest will be used
	cutoff	cutoff frequency, 1.0 corresponds to half the output sampling rate

Returns:: allocated ReSampleContext, NULL if error occured

Definition at line 145 of file resample.c.

Referenced by audio_resample_init(), and do_audio_out().

void av_bitstream_filter_close ( AVBitStreamFilterContext * bsf )

Definition at line 50 of file bitstream_filter.c.

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
	)

Definition at line 58 of file bitstream_filter.c.

Referenced by write_frame().

AVBitStreamFilterContext* av_bitstream_filter_init ( const char * name )

Definition at line 35 of file bitstream_filter.c.

Referenced by opt_bsf().

AVBitStreamFilter* av_bitstream_filter_next ( AVBitStreamFilter * f )

Definition at line 25 of file bitstream_filter.c.

Referenced by show_formats().

AVCodec* av_codec_next ( AVCodec * c )

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.

Definition at line 88 of file utils.c.

Referenced by show_formats().

void* av_fast_realloc	(	void *	ptr,
		unsigned int *	size,
		unsigned int	min_size
	)

Reallocates the given block if it is not large enough, otherwise it does nothing.

See also:: av_realloc

Definition at line 71 of file utils.c.

Referenced by allocate_buffers(), av_add_index_entry(), avcodec_default_get_buffer(), decode_frame(), decode_i_frame(), decode_p_frame(), dirac_combine_frame(), ff_combine_frame(), ff_h263_decode_frame(), ff_h264_decode_nal(), ff_vdpau_add_data_chunk(), flac_decode_frame(), mimic_decode_frame(), mp_decode_frame(), read_frame(), read_header(), shorten_decode_frame(), and tqi_decode_frame().

int av_get_bits_per_sample ( enum CodecID codec_id )

Returns codec bits per sample.

Parameters:

[in] codec_id the codec

Returns:: Number of bits per sample or zero if unknown for the given codec.

Definition at line 891 of file utils.c.

Referenced by av_find_stream_info(), av_write_header(), do_audio_out(), ff_alsa_open(), ff_audio_interleave_init(), get_aiff_header(), get_audio_frame_size(), gxf_packet(), mkv_write_tracks(), mov_read_stsd(), mov_write_header(), mxf_write_generic_sound_common(), pcm_decode_frame(), pcm_encode_frame(), pcm_encode_init(), and voc_get_packet().

int av_get_bits_per_sample_format ( enum SampleFormat sample_fmt )

Returns sample format bits per sample.

Parameters:

[in] sample_fmt the sample format

Returns:: Number of bits per sample or zero if unknown for the given sample format.

Definition at line 933 of file utils.c.

Referenced by audio_decode_frame(), av_audio_resample_init(), do_audio_out(), mkv_write_tracks(), and qdm2_decode_frame().

char av_get_pict_type_char ( int pict_type )

Returns a single letter to describe the given picture type pict_type.

Parameters:

[in] pict_type the picture type

Returns:: A single character representing the picture type.

Definition at line 878 of file utils.c.

Referenced by decode_mb_cavlc(), decode_slice_header(), do_video_stats(), ff_rate_estimate_qscale(), flv_h263_decode_picture_header(), show_pict_info(), and svq3_decode_frame().

AVHWAccel* av_hwaccel_next ( 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.

Definition at line 1163 of file utils.c.

Referenced by ff_find_hwaccel().

int av_lockmgr_register ( int(*)(void **mutex, enum AVLockOp op) cb )

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.

Parameters:

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.

Definition at line 1180 of file utils.c.

int av_parse_video_frame_rate	(	AVRational *	frame_rate,
		const char *	str
	)

Parses str and put in frame_rate the detected values.

Returns:: 0 in case of a successful parsing, a negative value otherwise

Parameters:

`[in]`	str	the string to parse: it has to be a string in the format <frame_rate_num>/<frame_rate_den>, a float number or a valid video rate abbreviation
`[in,out]`	frame_rate	pointer to the AVRational which will contain the detected frame rate

Definition at line 1093 of file utils.c.

Referenced by opt_frame_rate(), parse_ffconfig(), and parse_frame_rate().

int av_parse_video_frame_size	(	int *	width_ptr,
		int *	height_ptr,
		const char *	str
	)

Parses str and put in width_ptr and height_ptr the detected values.

Returns:: 0 in case of a successful parsing, a negative value otherwise

Parameters:

`[in]`	str	the string to parse: it has to be a string in the format <width>x<height> or a valid video frame size abbreviation.
`[in,out]`	width_ptr	pointer to the variable which will contain the detected frame width value
`[in,out]`	height_ptr	pointer to the variable which will contain the detected frame height value

Definition at line 1065 of file utils.c.

Referenced by opt_frame_size(), parse_ffconfig(), and parse_image_size().

int av_parser_change	(	AVCodecParserContext *	s,
		AVCodecContext *	avctx,
		uint8_t **	poutbuf,
		int *	poutbuf_size,
		const uint8_t *	buf,
		int	buf_size,
		int	keyframe
	)

Returns:: 0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed

Deprecated:: use AVBitstreamFilter

Definition at line 182 of file parser.c.

Referenced by output_packet().

void av_parser_close ( AVCodecParserContext * s )

Definition at line 215 of file parser.c.

Referenced by av_bitstream_filter_close(), av_close_input_stream(), av_estimate_timings_from_pts(), and av_read_frame_flush().

AVCodecParserContext* av_parser_init ( int codec_id )

Definition at line 38 of file parser.c.

Referenced by av_find_stream_info(), av_read_frame_internal(), and remove_extradata().

AVCodecParser* av_parser_next ( AVCodecParser * c )

Definition at line 27 of file parser.c.

int av_parser_parse	(	AVCodecParserContext *	s,
		AVCodecContext *	avctx,
		uint8_t **	poutbuf,
		int *	poutbuf_size,
		const uint8_t *	buf,
		int	buf_size,
		int64_t	pts,
		int64_t	dts
	)

Parameters:

	buf	input
	buf_size	input length, to signal EOF, this should be 0 (so that the last frame can be output)
	pts	input presentation timestamp
	dts	input decoding timestamp
	poutbuf	will contain a pointer to the first byte of the output frame
	poutbuf_size	will contain the length of the output frame

Returns:: the number of bytes of the input bitstream used

Example:

   while(in_len){
       len = av_parser_parse(myparser, AVCodecContext, &data, &size,
                                       in_data, in_len,
                                       pts, dts);
       in_data += len;
       in_len  -= len;

       if(size)
          decode_frame(data, size);
   }

Definition at line 127 of file parser.c.

Referenced by av_read_frame_internal().

void av_picture_copy	(	AVPicture *	dst,
		const AVPicture *	src,
		int	pix_fmt,
		int	width,
		int	height
	)

Copy image 'src' to 'dst'.

Definition at line 995 of file imgconvert.c.

Referenced by avcodec_default_reget_buffer(), copy_frame(), img_convert(), pre_process_video_frame(), qtrle_encode_frame(), roq_decode_frame(), and sws_scale().

int av_picture_crop	(	AVPicture *	dst,
		const AVPicture *	src,
		int	pix_fmt,
		int	top_band,
		int	left_band
	)

Crop image top and left side.

Definition at line 2118 of file imgconvert.c.

Referenced by do_video_out().

int av_picture_pad	(	AVPicture *	dst,
		const AVPicture *	src,
		int	height,
		int	width,
		int	pix_fmt,
		int	padtop,
		int	padbottom,
		int	padleft,
		int	padright,
		int *	color
	)

Pad image.

Definition at line 2140 of file imgconvert.c.

Referenced by do_video_out().

void av_register_bitstream_filter ( AVBitStreamFilter * bsf )

Definition at line 30 of file bitstream_filter.c.

void av_register_codec_parser ( AVCodecParser * parser )

Definition at line 32 of file parser.c.

void av_register_hwaccel ( AVHWAccel * hwaccel )

Registers the hardware accelerator hwaccel.

Definition at line 1154 of file utils.c.

int av_resample	(	struct AVResampleContext *	c,
		short *	dst,
		short *	src,
		int *	consumed,
		int	src_size,
		int	dst_size,
		int	update_ctx
	)

resamples.

Parameters:

	src	an array of unconsumed samples
	consumed	the number of samples of src which have been consumed are returned here
	src_size	the number of unconsumed samples available
	dst_size	the amount of space in samples available in dst
	update_ctx	If this is 0 then the context will not be modified, that way several channels can be resampled with the same context.

Returns:: the number of samples written in dst or -1 if an error occurred

Definition at line 213 of file resample2.c.

Referenced by audio_resample().

void av_resample_close ( struct AVResampleContext * c )

Definition at line 202 of file resample2.c.

Referenced by audio_resample_close().

void av_resample_compensate	(	struct AVResampleContext *	c,
		int	sample_delta,
		int	compensation_distance
	)

Compensates samplerate/timestamp drift.

The compensation is done by changing the resampler parameters, so no audible clicks or similar distortions occur

Parameters:

	compensation_distance	distance in output samples over which the compensation should be performed
	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

Definition at line 207 of file resample2.c.

Referenced by av_resample(), and do_audio_out().

struct AVResampleContext* av_resample_init	(	int	out_rate,
		int	in_rate,
		int	filter_length,
		int	log2_phase_count,
		int	linear,
		double	cutoff
	)			`[read]`

Initializes an audio resampler.

Note, if either rate is not an integer then simply scale both rates up so they are.

Parameters:

	filter_length	length of each FIR filter in the filterbank relative to the cutoff freq
	log2_phase_count	log2 of the number of entries in the polyphase filterbank
	linear	If 1 then the used FIR filter will be linearly interpolated between the 2 closest, if 0 the closest will be used
	cutoff	cutoff frequency, 1.0 corresponds to half the output sampling rate

Definition at line 178 of file resample2.c.

Referenced by av_audio_resample_init().

unsigned int av_xiphlacing	(	unsigned char *	s,
		unsigned int	v
	)

Definition at line 955 of file utils.c.

Referenced by fixup_vorbis_headers(), oggvorbis_encode_init(), and put_main_header().

void avcodec_align_dimensions	(	AVCodecContext *	s,
		int *	width,
		int *	height
	)

Definition at line 130 of file utils.c.

Referenced by avcodec_default_get_buffer().

AVCodecContext* avcodec_alloc_context ( void )

Allocates an AVCodecContext and sets its fields to default values.

The resulting struct can be deallocated by simply calling av_free().

Returns:: An AVCodecContext filled with default values or NULL on failure.

See also:: avcodec_get_context_defaults

Definition at line 453 of file options.c.

Referenced by add_av_stream1(), add_codec(), audio_decode_example(), audio_encode_example(), av_new_stream(), estimate_best_b_count(), main(), read_ffserver_streams(), rtp_new_av_stream(), video_decode_example(), and video_encode_example().

AVCodecContext* avcodec_alloc_context2 ( enum CodecType )

THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!

Definition at line 439 of file options.c.

Referenced by avcodec_alloc_context(), and main().

AVFrame* avcodec_alloc_frame ( void )

Allocates an AVFrame and sets its fields to default values.

The resulting struct can be deallocated by simply calling av_free().

Returns:: An AVFrame filled with default values or NULL on failure.

See also:: avcodec_get_frame_defaults

Definition at line 411 of file utils.c.

Referenced by AC3_encode_init(), adx_encode_init(), alac_encode_init(), alloc_picture(), encode_init(), Faac_encode_init(), flac_encode_init(), g726_init(), get_watermark_picture(), libgsm_init(), MP3lame_encode_init(), MPA_encode_init(), oggvorbis_encode_init(), pcm_encode_init(), roq_dpcm_encode_init(), video_decode_example(), video_encode_example(), video_thread(), and vorbis_encode_init().

int avcodec_check_dimensions	(	void *	av_log_ctx,
		unsigned int	w,
		unsigned int	h
	)

Checks if the given dimension of a picture is valid, meaning that all bytes of the picture can be addressed with a signed int.

Parameters:

`[in]`	w	Width of the picture.
`[in]`	h	Height of the picture.

Returns:: Zero if valid, a negative value if invalid.

Definition at line 191 of file utils.c.

Referenced by avcodec_decode_video(), avcodec_default_get_buffer(), avcodec_encode_video(), avcodec_open(), avpicture_fill(), cmv_decode_frame(), codec_reinit(), decode_frame(), decode_init(), dnxhd_decode_frame(), encode_init(), ff_h264_decode_seq_parameter_set(), ff_mjpeg_decode_sof(), ff_pnm_decode_header(), flashsv_encode_init(), flv_h263_decode_picture_header(), gif_decode_frame(), grab_read_header(), iv_decode_frame(), libdirac_decode_frame(), libopenjpeg_decode_frame(), libschroedinger_handle_first_access_unit(), mm_decode_init(), MPV_common_init(), pcx_decode_frame(), ptx_decode_frame(), qtrle_encode_init(), roq_encode_init(), rv20_decode_picture_header(), rv40_parse_slice_header(), sunrast_decode_frame(), tgv_decode_frame(), tiff_decode_tag(), txd_decode_frame(), v4l2_read_header(), vqa_decode_init(), and xan_decode_init().

int avcodec_close ( AVCodecContext * avctx )

Definition at line 597 of file utils.c.

Referenced by audio_decode_example(), audio_encode_example(), av_encode(), av_find_stream_info(), close_audio(), close_connection(), close_video(), estimate_best_b_count(), get_watermark_picture(), stream_component_close(), video_decode_example(), and video_encode_example().

int avcodec_decode_audio2	(	AVCodecContext *	avctx,
		int16_t *	samples,
		int *	frame_size_ptr,
		const uint8_t *	buf,
		int	buf_size
	)

Decodes an audio frame from buf into samples.

The avcodec_decode_audio2() function decodes an audio frame from the input buffer buf of size buf_size. To decode it, it makes use of the audio codec which was coupled with avctx using avcodec_open(). The resulting decoded frame is stored in output buffer samples. If no frame could be decompressed, 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_audio2().

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.

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 buf 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, the bitstream should have 4 byte alignment at minimum and all sample data should be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If the linesize is not a multiple of 16 then there's no sense in aligning the start of the buffer to 16.

Parameters:

	avctx	the codec context
`[out]`	samples	the output buffer
`[in,out]`	frame_size_ptr	the output buffer size in bytes
`[in]`	buf	the input buffer
`[in]`	buf_size	the input buffer size in bytes

Returns:: On error a negative value is returned, otherwise the number of bytes used or zero if no frame could be decompressed.

Definition at line 555 of file utils.c.

Referenced by audio_decode_frame(), output_packet(), and try_decode_frame().

int avcodec_decode_subtitle	(	AVCodecContext *	avctx,
		AVSubtitle *	sub,
		int *	got_sub_ptr,
		const uint8_t *	buf,
		int	buf_size
	)

Definition at line 583 of file utils.c.

Referenced by output_packet(), and subtitle_thread().

int avcodec_decode_video	(	AVCodecContext *	avctx,
		AVFrame *	picture,
		int *	got_picture_ptr,
		const uint8_t *	buf,
		int	buf_size
	)

Decodes a video frame from buf into picture.

The avcodec_decode_video() function decodes a video frame from the input buffer buf of size buf_size. To decode it, it makes use of the video codec which was coupled with avctx using avcodec_open(). The resulting decoded frame is stored in picture.

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.
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 buf 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, the bitstream should have 4 byte alignment at minimum and all sample data should be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If the linesize is not a multiple of 16 then there's no sense in aligning the start of the buffer to 16.
Some codecs have a delay between input and output, these need to be feeded with buf=NULL, buf_size=0 at the end to return the remaining frames.

Parameters:

	avctx	the codec context
`[out]`	picture	The AVFrame in which the decoded video frame will be stored.
`[in]`	buf	the input buffer
`[in]`	buf_size	the size of the input buffer in bytes
`[in,out]`	got_picture_ptr	Zero if no frame could be decompressed, otherwise, it is nonzero.

Returns:: On error a negative value is returned, otherwise the number of bytes used or zero if no frame could be decompressed.

Definition at line 532 of file utils.c.

Referenced by get_watermark_picture(), output_packet(), try_decode_frame(), video_decode_example(), and video_thread().

int avcodec_default_execute	(	AVCodecContext *	c,
		int()(AVCodecContext c2, void *arg2)	func,
		void *	arg,
		int *	ret,
		int	count,
		int	size
	)

Definition at line 388 of file utils.c.

Referenced by avcodec_get_context_defaults2().

void avcodec_default_free_buffers ( AVCodecContext * s )

Definition at line 861 of file utils.c.

Referenced by avcodec_close(), and MPV_common_end().

int avcodec_default_get_buffer	(	AVCodecContext *	s,
		AVFrame *	pic
	)

Definition at line 199 of file utils.c.

Referenced by avcodec_get_context_defaults2().

enum PixelFormat avcodec_default_get_format	(	struct AVCodecContext *	s,
		const enum PixelFormat *	fmt
	)

Definition at line 398 of file utils.c.

Referenced by avcodec_get_context_defaults2().

int avcodec_default_reget_buffer	(	AVCodecContext *	s,
		AVFrame *	pic
	)

Definition at line 356 of file utils.c.

Referenced by avcodec_get_context_defaults2().

void avcodec_default_release_buffer	(	AVCodecContext *	s,
		AVFrame *	pic
	)

Definition at line 327 of file utils.c.

Referenced by avcodec_get_context_defaults2().

int avcodec_encode_audio	(	AVCodecContext *	avctx,
		uint8_t *	buf,
		int	buf_size,
		const short *	samples
	)

Encodes an audio frame from samples into buf.

The avcodec_encode_audio() function encodes an audio frame from the input buffer samples. To encode it, it makes use of the audio codec which was coupled with avctx using avcodec_open(). The resulting encoded frame is stored in output buffer buf.

Note:: The output buffer should be at least FF_MIN_BUFFER_SIZE bytes large.

Parameters:

	avctx	the codec context
`[out]`	buf	the output buffer
`[in]`	buf_size	the output buffer size
`[in]`	samples	the input buffer containing the samples The number of samples read from this buffer is frame_sizechannels, 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.

Returns:: 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.

Definition at line 483 of file utils.c.

Referenced by audio_encode_example(), do_audio_out(), output_packet(), and write_audio_frame().

int avcodec_encode_subtitle	(	AVCodecContext *	avctx,
		uint8_t *	buf,
		int	buf_size,
		const AVSubtitle *	sub
	)

Definition at line 517 of file utils.c.

Referenced by do_subtitle_out().

int avcodec_encode_video	(	AVCodecContext *	avctx,
		uint8_t *	buf,
		int	buf_size,
		const AVFrame *	pict
	)

Encodes a video frame from pict into buf.

The avcodec_encode_video() function encodes a video frame from the input pict. To encode it, it makes use of the video codec which was coupled with avctx using avcodec_open(). The resulting encoded bytes representing the frame are stored in the output buffer buf. The input picture should be stored using a specific format, namely avctx.pix_fmt.

Parameters:

	avctx	the codec context
`[out]`	buf	the output buffer for the bitstream of encoded frame
`[in]`	buf_size	the size of the output buffer in bytes
`[in]`	pict	the input picture to encode

Returns:: On error a negative value is returned, on success zero or the number of bytes used from the output buffer.

Definition at line 498 of file utils.c.

Referenced by do_video_out(), estimate_best_b_count(), output_packet(), video_encode_example(), and write_video_frame().

int avcodec_find_best_pix_fmt	(	int64_t	pix_fmt_mask,
		int	src_pix_fmt,
		int	has_alpha,
		int *	loss_ptr
	)

Finds 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.

 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);

Parameters:

`[in]`	pix_fmt_mask	bitmask determining which pixel format to choose from
`[in]`	src_pix_fmt	source pixel format
`[in]`	has_alpha	Whether the source pixel format alpha channel is used.
`[out]`	loss_ptr	Combination of flags informing you what kind of losses will occur.

Returns:: The best pixel format to convert to or -1 if none was found.

Definition at line 909 of file imgconvert.c.

AVCodec* avcodec_find_decoder ( enum CodecID id )

Finds a registered decoder with a matching codec ID.

Parameters:

id

CodecID of the requested decoder

Returns:: A decoder if one was found, NULL otherwise.

Definition at line 654 of file utils.c.

Referenced by audio_decode_example(), av_encode(), avcodec_string(), get_watermark_picture(), open_parser(), sdp_parse_rtpmap(), stream_component_open(), try_decode_frame(), and video_decode_example().

AVCodec* avcodec_find_decoder_by_name ( const char * name )

Finds a registered decoder with the specified name.

Parameters:

name

name of the requested decoder

Returns:: A decoder if one was found, NULL otherwise.

Definition at line 666 of file utils.c.

Referenced by find_codec_or_die(), and opt_input_file().

AVCodec* avcodec_find_encoder ( enum CodecID id )

Finds a registered encoder with a matching codec ID.

Parameters:

id

CodecID of the requested encoder

Returns:: An encoder if one was found, NULL otherwise.

Definition at line 628 of file utils.c.

Referenced by asf_write_header1(), audio_encode_example(), av_encode(), avcodec_string(), compute_status(), estimate_best_b_count(), new_audio_stream(), new_video_stream(), open_audio(), open_video(), and video_encode_example().

AVCodec* avcodec_find_encoder_by_name ( const char * name )

Finds a registered encoder with the specified name.

Parameters:

name

name of the requested encoder

Returns:: An encoder if one was found, NULL otherwise.

Definition at line 640 of file utils.c.

Referenced by find_codec_or_die(), new_audio_stream(), new_subtitle_stream(), new_video_stream(), opt_audio_codec(), and opt_video_codec().

void avcodec_flush_buffers ( AVCodecContext * avctx )

Flush buffers, should be called when seeking or when switching to a different stream.

Definition at line 855 of file utils.c.

Referenced by audio_decode_frame(), subtitle_thread(), and video_thread().

void avcodec_get_chroma_sub_sample	(	int	pix_fmt,
		int *	h_shift,
		int *	v_shift
	)

Definition at line 438 of file imgconvert.c.

Referenced by avcodec_default_get_buffer(), avfilter_draw_slice(), ff_print_debug_info(), load_input_picture(), MPV_common_init(), and MPV_encode_init().

void avcodec_get_context_defaults ( AVCodecContext * s )

Sets the fields of the given AVCodecContext to default values.

Parameters:

s

The AVCodecContext of which the fields should be set to default values.

Definition at line 449 of file options.c.

Referenced by parse_ffconfig().

void avcodec_get_context_defaults2	(	AVCodecContext *	s,
		enum	CodecType
	)

THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!

Definition at line 411 of file options.c.

Referenced by avcodec_alloc_context2(), avcodec_get_context_defaults(), new_audio_stream(), new_subtitle_stream(), and new_video_stream().

void avcodec_get_frame_defaults ( AVFrame * pic )

Sets the fields of the given AVFrame to default values.

Parameters:

pic

The AVFrame of which the fields should be set to default values.

Definition at line 404 of file utils.c.

Referenced by av_encode(), avcodec_alloc_frame(), bmp_decode_init(), bmp_encode_init(), common_init(), do_video_out(), encode_init(), estimate_best_b_count(), gif_decode_init(), output_packet(), pcx_init(), png_dec_init(), png_enc_init(), ptx_init(), sgi_init(), sunrast_init(), targa_encode_init(), targa_init(), tiff_init(), and txd_init().

enum PixelFormat avcodec_get_pix_fmt ( const char * name )

Definition at line 452 of file imgconvert.c.

Referenced by opt_frame_pix_fmt().

int avcodec_get_pix_fmt_loss	(	int	dst_pix_fmt,
		int	src_pix_fmt,
		int	has_alpha
	)

Computes 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.

Parameters:

`[in]`	dst_pix_fmt	destination pixel format
`[in]`	src_pix_fmt	source pixel format
`[in]`	has_alpha	Whether the source pixel format alpha channel is used.

Returns:: Combination of flags informing you what kind of losses will occur.

Definition at line 785 of file imgconvert.c.

Referenced by avcodec_find_best_pix_fmt(), and avcodec_find_best_pix_fmt1().

const char* avcodec_get_pix_fmt_name ( int pix_fmt )

Definition at line 444 of file imgconvert.c.

Referenced by avcodec_string(), dc1394_read_common(), and encode_init().

void avcodec_init ( void )

Initializes libavcodec.

Warning:: This function must be called before any other libavcodec function.

Definition at line 844 of file utils.c.

Referenced by avcodec_register(), and main().

int avcodec_open	(	AVCodecContext *	avctx,
		AVCodec *	codec
	)

Initializes 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!

 avcodec_register_all();
 codec = avcodec_find_decoder(CODEC_ID_H264);
 if (!codec)
     exit(1);

 context = avcodec_alloc_context();

 if (avcodec_open(context, codec) < 0)
     exit(1);

Parameters:

	avctx	The context which will be set up to use the given codec.
	codec	The codec to use within the context.

Returns:: zero on success, a negative value on error

See also:: avcodec_alloc_context, avcodec_find_decoder, avcodec_find_encoder

Definition at line 421 of file utils.c.

Referenced by audio_decode_example(), audio_encode_example(), av_encode(), estimate_best_b_count(), get_watermark_picture(), open_audio(), open_parser(), open_video(), stream_component_open(), try_decode_frame(), video_decode_example(), and video_encode_example().

int avcodec_parse_frame	(	AVCodecContext *	avctx,
		uint8_t **	pdata,
		int *	data_size_ptr,
		uint8_t *	buf,
		int	buf_size
	)

void avcodec_pix_fmt_string	(	char *	buf,
		int	buf_size,
		int	pix_fmt
	)

Print in buf the string corresponding to the pixel format with number pix_fmt, or an header if pix_fmt is negative.

Parameters:

`[in]`	buf	the buffer where to write the string
`[in]`	buf_size	the size of buf
`[in]`	pix_fmt	the number of the pixel format to print the corresponding info string, or a negative value to print the corresponding header. Meaningful values for obtaining a pixel format info vary from 0 to PIX_FMT_NB -1.

Definition at line 462 of file imgconvert.c.

Referenced by opt_frame_pix_fmt().

unsigned int avcodec_pix_fmt_to_codec_tag ( enum PixelFormat p )

Definition at line 59 of file raw.c.

Referenced by av_find_stream_info(), and raw_init_encoder().

void avcodec_register ( AVCodec * codec )

Register the codec codec and initialize libavcodec.

See also:: avcodec_init()

Definition at line 93 of file utils.c.

Referenced by register_avcodec().

void avcodec_register_all ( void )

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 also:

avcodec_register

av_register_codec_parser

av_register_bitstream_filter

Definition at line 44 of file allcodecs.c.

Referenced by av_register_all(), and main().

void avcodec_set_dimensions	(	AVCodecContext *	s,
		int	width,
		int	height
	)

void avcodec_string	(	char *	buf,
		int	buf_size,
		AVCodecContext *	enc,
		int	encode
	)

Definition at line 680 of file utils.c.

Referenced by av_find_stream_info(), compute_status(), and dump_stream_format().

int avcodec_thread_execute	(	AVCodecContext *	s,
		int()(AVCodecContext c2, void *arg2)	func,
		void *	arg,
		int *	ret,
		int	count,
		int	size
	)

Definition at line 95 of file beosthread.c.

Referenced by avcodec_thread_init().

void avcodec_thread_free ( AVCodecContext * s )

Free what has been allocated by avcodec_thread_init().

Must be called after decoding has finished, especially do not call while avcodec_thread_execute() is running.

Free what has been allocated by avcodec_thread_init().

must be called after decoding has finished, especially do not call while avcodec_thread_execute() is running

Definition at line 78 of file beosthread.c.

Referenced by avcodec_close(), and avcodec_thread_init().

int avcodec_thread_init	(	AVCodecContext *	s,
		int	thread_count
	)

Definition at line 120 of file beosthread.c.

Referenced by new_audio_stream(), new_video_stream(), opt_input_file(), read_ffserver_streams(), and stream_component_open().

unsigned avcodec_version ( void )

Returns the LIBAVCODEC_VERSION_INT constant.

Definition at line 839 of file utils.c.

int avpicture_alloc	(	AVPicture *	picture,
		int	pix_fmt,
		int	width,
		int	height
	)

Allocate memory for a picture.

Call avpicture_free to free it.

Parameters:

	picture	the picture to be filled in
	pix_fmt	the format of the picture
	width	the width of the picture
	height	the height of the picture

Returns:: zero if successful, a negative value if not

Definition at line 2083 of file imgconvert.c.

Referenced by av_encode(), img_convert(), libschroedinger_handle_first_access_unit(), and qtrle_encode_init().

int avpicture_deinterlace	(	AVPicture *	dst,
		const AVPicture *	src,
		int	pix_fmt,
		int	width,
		int	height
	)

Definition at line 2957 of file imgconvert.c.

Referenced by pre_process_video_frame().

int avpicture_fill	(	AVPicture *	picture,
		uint8_t *	ptr,
		int	pix_fmt,
		int	width,
		int	height
	)

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.

Parameters:

	picture	AVPicture whose fields are to be filled in
	ptr	Buffer which will contain or contains the actual image data
	pix_fmt	The format in which the picture data is stored.
	width	the width of the image in pixels
	height	the height of the image in pixels

Returns:: size of the image data in bytes

Definition at line 707 of file imgconvert.c.

Referenced by alloc_picture(), avpicture_alloc(), avpicture_get_size(), copy_frame(), get_watermark_picture(), libdirac_decode_frame(), libschroedinger_decode_frame(), pre_process_video_frame(), Process(), Process0(), Process1(), raw_decode(), and sws_scale().

void avpicture_free ( AVPicture * picture )

Free a picture previously allocated by avpicture_alloc().

Parameters:

picture

the AVPicture to be freed

Definition at line 2105 of file imgconvert.c.

Referenced by img_convert(), libschroedinger_decode_close(), and qtrle_encode_end().

int avpicture_get_size	(	int	pix_fmt,
		int	width,
		int	height
	)

Calculate the size in bytes that a picture of the given width and height would occupy if stored in the given picture format.

Parameters:

	pix_fmt	the given picture format
	width	the width of the image
	height	the height of the image

Returns:: Image data size in bytes

Definition at line 779 of file imgconvert.c.

Referenced by alloc_picture(), avpicture_alloc(), avpicture_layout(), dc1394_read_common(), get_watermark_picture(), libdirac_decode_frame(), libdirac_encode_init(), libschroedinger_encode_init(), pam_encode_frame(), pnm_encode_frame(), pnm_parse(), pre_process_video_frame(), Process(), Process0(), Process1(), raw_init_decoder(), sws_scale(), targa_encode_frame(), v4l2_read_header(), and yuv4_read_packet().

int avpicture_layout	(	const AVPicture *	src,
		int	pix_fmt,
		int	width,
		int	height,
		unsigned char *	dest,
		int	dest_size
	)

Definition at line 720 of file imgconvert.c.

Referenced by libdirac_encode_frame(), libschroedinger_frame_from_data(), and raw_encode().

int img_get_alpha_info	(	const AVPicture *	src,
		int	pix_fmt,
		int	width,
		int	height
	)

Tell if an image really has transparent alpha values.

Returns:: ored mask of FF_ALPHA_xxx constants

Definition at line 2748 of file imgconvert.c.

attribute_deprecated void register_avcodec ( AVCodec * codec )

Deprecated:: Deprecated in favor of avcodec_register().

Definition at line 104 of file utils.c.