libavcodec/avcodec.h File Reference

external API header More...

#include <errno.h>
#include "libavutil/samplefmt.h"
#include "libavutil/avutil.h"
#include "libavutil/cpu.h"
#include "libavutil/dict.h"
#include "libavcodec/version.h"
#include "libavutil/audioconvert.h"

Go to the source code of this file.

Data Structures

struct RcOverride

struct AVPanScan

Pan Scan area. More...

struct AVPacket

struct AVFrame

Audio Video Frame. More...

struct AVCodecContext

main external API structure. More...

struct AVProfile

AVProfile. 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 SampleFormat   AVSampleFormat

#define SAMPLE_FMT_NONE   AV_SAMPLE_FMT_NONE

#define SAMPLE_FMT_U8   AV_SAMPLE_FMT_U8

#define SAMPLE_FMT_S16   AV_SAMPLE_FMT_S16

#define SAMPLE_FMT_S32   AV_SAMPLE_FMT_S32

#define SAMPLE_FMT_FLT   AV_SAMPLE_FMT_FLT

#define SAMPLE_FMT_DBL   AV_SAMPLE_FMT_DBL

#define SAMPLE_FMT_NB   AV_SAMPLE_FMT_NB

#define CH_FRONT_LEFT   AV_CH_FRONT_LEFT

#define CH_FRONT_RIGHT   AV_CH_FRONT_RIGHT

#define CH_FRONT_CENTER   AV_CH_FRONT_CENTER

#define CH_LOW_FREQUENCY   AV_CH_LOW_FREQUENCY

#define CH_BACK_LEFT   AV_CH_BACK_LEFT

#define CH_BACK_RIGHT   AV_CH_BACK_RIGHT

#define CH_FRONT_LEFT_OF_CENTER   AV_CH_FRONT_LEFT_OF_CENTER

#define CH_FRONT_RIGHT_OF_CENTER   AV_CH_FRONT_RIGHT_OF_CENTER

#define CH_BACK_CENTER   AV_CH_BACK_CENTER

#define CH_SIDE_LEFT   AV_CH_SIDE_LEFT

#define CH_SIDE_RIGHT   AV_CH_SIDE_RIGHT

#define CH_TOP_CENTER   AV_CH_TOP_CENTER

#define CH_TOP_FRONT_LEFT   AV_CH_TOP_FRONT_LEFT

#define CH_TOP_FRONT_CENTER   AV_CH_TOP_FRONT_CENTER

#define CH_TOP_FRONT_RIGHT   AV_CH_TOP_FRONT_RIGHT

#define CH_TOP_BACK_LEFT   AV_CH_TOP_BACK_LEFT

#define CH_TOP_BACK_CENTER   AV_CH_TOP_BACK_CENTER

#define CH_TOP_BACK_RIGHT   AV_CH_TOP_BACK_RIGHT

#define CH_STEREO_LEFT   AV_CH_STEREO_LEFT

#define CH_STEREO_RIGHT   AV_CH_STEREO_RIGHT

#define CH_LAYOUT_NATIVE   AV_CH_LAYOUT_NATIVE

Channel mask value used for AVCodecContext.request_channel_layout to indicate that the user requests the channel order of the decoder output to be the native codec channel order.

#define CH_LAYOUT_MONO   AV_CH_LAYOUT_MONO

#define CH_LAYOUT_STEREO   AV_CH_LAYOUT_STEREO

#define CH_LAYOUT_2_1   AV_CH_LAYOUT_2_1

#define CH_LAYOUT_SURROUND   AV_CH_LAYOUT_SURROUND

#define CH_LAYOUT_4POINT0   AV_CH_LAYOUT_4POINT0

#define CH_LAYOUT_2_2   AV_CH_LAYOUT_2_2

#define CH_LAYOUT_QUAD   AV_CH_LAYOUT_QUAD

#define CH_LAYOUT_5POINT0   AV_CH_LAYOUT_5POINT0

#define CH_LAYOUT_5POINT1   AV_CH_LAYOUT_5POINT1

#define CH_LAYOUT_5POINT0_BACK   AV_CH_LAYOUT_5POINT0_BACK

#define CH_LAYOUT_5POINT1_BACK   AV_CH_LAYOUT_5POINT1_BACK

#define CH_LAYOUT_7POINT0   AV_CH_LAYOUT_7POINT0

#define CH_LAYOUT_7POINT1   AV_CH_LAYOUT_7POINT1

#define CH_LAYOUT_7POINT1_WIDE   AV_CH_LAYOUT_7POINT1_WIDE

#define CH_LAYOUT_STEREO_DOWNMIX   AV_CH_LAYOUT_STEREO_DOWNMIX

#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_FLAG2_PSY   0x00080000

Use psycho visual optimizations.

#define CODEC_FLAG2_SSIM   0x00100000

Compute SSIM during encoding, error[] values are undefined.

#define CODEC_FLAG2_INTRA_REFRESH   0x00200000

Use periodic insertion of intra blocks instead of keyframes.

#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 and supports custom allocators.

#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 CODEC_CAP_SUBFRAMES   0x0100

Codec can output multiple frames per AVPacket Normally demuxers return one frame at a time, demuxers which do not do are connected to a parser to split what they return into proper frames.

#define CODEC_CAP_EXPERIMENTAL   0x0200

Codec is experimental and is thus avoided in favor of non experimental encoders.

#define CODEC_CAP_CHANNEL_CONF   0x0400

Codec should fill in channel configuration and samplerate instead of container.

#define CODEC_CAP_NEG_LINESIZES   0x0800

Codec is able to deal with negative linesizes.

#define CODEC_CAP_FRAME_THREADS   0x1000

Codec supports frame-level multithreading.

#define CODEC_CAP_SLICE_THREADS   0x2000

Codec supports slice-based (or partition-based) multithreading.

#define CODEC_CAP_LOSSLESS   0x80000000

Codec is lossless.

#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_QSCALE_TYPE_VP56   3

#define FF_BUFFER_TYPE_INTERNAL   1

#define FF_BUFFER_TYPE_USER   2

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

#define FF_BUFFER_TYPE_SHARED   4

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

#define FF_BUFFER_TYPE_COPY   8

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

#define FF_I_TYPE   AV_PICTURE_TYPE_I

Intra.

#define FF_P_TYPE   AV_PICTURE_TYPE_P

Predicted.

#define FF_B_TYPE   AV_PICTURE_TYPE_B

Bi-dir predicted.

#define FF_S_TYPE   AV_PICTURE_TYPE_S

S(GMC)-VOP MPEG4.

#define FF_SI_TYPE   AV_PICTURE_TYPE_SI

Switching Intra.

#define FF_SP_TYPE   AV_PICTURE_TYPE_SP

Switching Predicted.

#define FF_BI_TYPE   AV_PICTURE_TYPE_BI

#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 AV_PKT_FLAG_KEY   0x0001

#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_BUG_TRUNCATED   16384

#define FF_COMPLIANCE_VERY_STRICT   2

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

#define FF_COMPLIANCE_STRICT   1

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

#define FF_COMPLIANCE_NORMAL   0

#define FF_COMPLIANCE_UNOFFICIAL   -1

Allow unofficial extensions.

#define FF_COMPLIANCE_EXPERIMENTAL   -2

Allow nonstandardized experimental things.

#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_IDCT_BINK   24

#define FF_EC_GUESS_MVS   1

#define FF_EC_DEBLOCK   2

#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_THREADS   0x00010000

#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_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_RESERVED   -100

#define FF_PROFILE_AAC_MAIN   0

#define FF_PROFILE_AAC_LOW   1

#define FF_PROFILE_AAC_SSR   2

#define FF_PROFILE_AAC_LTP   3

#define FF_PROFILE_DTS   20

#define FF_PROFILE_DTS_ES   30

#define FF_PROFILE_DTS_96_24   40

#define FF_PROFILE_DTS_HD_HRA   50

#define FF_PROFILE_DTS_HD_MA   60

#define FF_PROFILE_MPEG2_422   0

#define FF_PROFILE_MPEG2_HIGH   1

#define FF_PROFILE_MPEG2_SS   2

#define FF_PROFILE_MPEG2_SNR_SCALABLE   3

#define FF_PROFILE_MPEG2_MAIN   4

#define FF_PROFILE_MPEG2_SIMPLE   5

#define FF_PROFILE_H264_CONSTRAINED   (1<<9)

#define FF_PROFILE_H264_INTRA   (1<<11)

#define FF_PROFILE_H264_BASELINE   66

#define FF_PROFILE_H264_CONSTRAINED_BASELINE   (66|FF_PROFILE_H264_CONSTRAINED)

#define FF_PROFILE_H264_MAIN   77

#define FF_PROFILE_H264_EXTENDED   88

#define FF_PROFILE_H264_HIGH   100

#define FF_PROFILE_H264_HIGH_10   110

#define FF_PROFILE_H264_HIGH_10_INTRA   (110|FF_PROFILE_H264_INTRA)

#define FF_PROFILE_H264_HIGH_422   122

#define FF_PROFILE_H264_HIGH_422_INTRA   (122|FF_PROFILE_H264_INTRA)

#define FF_PROFILE_H264_HIGH_444   144

#define FF_PROFILE_H264_HIGH_444_PREDICTIVE   244

#define FF_PROFILE_H264_HIGH_444_INTRA   (244|FF_PROFILE_H264_INTRA)

#define FF_PROFILE_H264_CAVLC_444   44

#define FF_PROFILE_VC1_SIMPLE   0

#define FF_PROFILE_VC1_MAIN   1

#define FF_PROFILE_VC1_COMPLEX   2

#define FF_PROFILE_VC1_ADVANCED   3

#define FF_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 FF_THREAD_FRAME   1

#define FF_THREAD_SLICE   2

#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 PARSER_FLAG_ONCE   0x0002

#define PARSER_FLAG_FETCHED_OFFSET   0x0004

Set if the parser has a valid file offset.

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_PNG,
  CODEC_ID_PPM, CODEC_ID_PBM, CODEC_ID_PGM, CODEC_ID_PGMYUV,
  CODEC_ID_PAM, CODEC_ID_FFVHUFF, CODEC_ID_RV30, CODEC_ID_RV40,
  CODEC_ID_VC1, CODEC_ID_WMV3, CODEC_ID_LOCO, CODEC_ID_WNV1,
  CODEC_ID_AASC, CODEC_ID_INDEO2, CODEC_ID_FRAPS, CODEC_ID_TRUEMOTION2,
  CODEC_ID_BMP, CODEC_ID_CSCD, CODEC_ID_MMVIDEO, CODEC_ID_ZMBV,
  CODEC_ID_AVS, CODEC_ID_SMACKVIDEO, CODEC_ID_NUV, CODEC_ID_KMVC,
  CODEC_ID_FLASHSV, CODEC_ID_CAVS, CODEC_ID_JPEG2000, CODEC_ID_VMNC,
  CODEC_ID_VP5, CODEC_ID_VP6, CODEC_ID_VP6F, CODEC_ID_TARGA,
  CODEC_ID_DSICINVIDEO, CODEC_ID_TIERTEXSEQVIDEO, CODEC_ID_TIFF, CODEC_ID_GIF,
  CODEC_ID_FFH264, CODEC_ID_DXA, CODEC_ID_DNXHD, CODEC_ID_THP,
  CODEC_ID_SGI, CODEC_ID_C93, CODEC_ID_BETHSOFTVID, CODEC_ID_PTX,
  CODEC_ID_TXD, CODEC_ID_VP6A, CODEC_ID_AMV, CODEC_ID_VB,
  CODEC_ID_PCX, CODEC_ID_SUNRAST, CODEC_ID_INDEO4, CODEC_ID_INDEO5,
  CODEC_ID_MIMIC, CODEC_ID_RL2, CODEC_ID_8SVX_EXP, CODEC_ID_8SVX_FIB,
  CODEC_ID_ESCAPE124, CODEC_ID_DIRAC, CODEC_ID_BFI, CODEC_ID_CMV,
  CODEC_ID_MOTIONPIXELS, CODEC_ID_TGV, CODEC_ID_TGQ, CODEC_ID_TQI,
  CODEC_ID_AURA, CODEC_ID_AURA2, CODEC_ID_V210X, CODEC_ID_TMV,
  CODEC_ID_V210, CODEC_ID_DPX, CODEC_ID_MAD, CODEC_ID_FRWU,
  CODEC_ID_FLASHSV2, CODEC_ID_CDGRAPHICS, CODEC_ID_R210, CODEC_ID_ANM,
  CODEC_ID_BINKVIDEO, CODEC_ID_IFF_ILBM, CODEC_ID_IFF_BYTERUN1, CODEC_ID_KGV1,
  CODEC_ID_YOP, CODEC_ID_VP8, CODEC_ID_PICTOR, CODEC_ID_ANSI,
  CODEC_ID_A64_MULTI, CODEC_ID_A64_MULTI5, CODEC_ID_R10K, CODEC_ID_MXPEG,
  CODEC_ID_LAGARITH, CODEC_ID_PRORES, CODEC_ID_JV, CODEC_ID_DFA,
  CODEC_ID_8SVX_RAW, CODEC_ID_PCM_S16LE = 0x10000, CODEC_ID_PCM_S16BE, CODEC_ID_PCM_U16LE,
  CODEC_ID_PCM_U16BE, CODEC_ID_PCM_S8, CODEC_ID_PCM_U8, CODEC_ID_PCM_MULAW,
  CODEC_ID_PCM_ALAW, CODEC_ID_PCM_S32LE, CODEC_ID_PCM_S32BE, CODEC_ID_PCM_U32LE,
  CODEC_ID_PCM_U32BE, CODEC_ID_PCM_S24LE, CODEC_ID_PCM_S24BE, CODEC_ID_PCM_U24LE,
  CODEC_ID_PCM_U24BE, CODEC_ID_PCM_S24DAUD, CODEC_ID_PCM_ZORK, CODEC_ID_PCM_S16LE_PLANAR,
  CODEC_ID_PCM_DVD, CODEC_ID_PCM_F32BE, CODEC_ID_PCM_F32LE, CODEC_ID_PCM_F64BE,
  CODEC_ID_PCM_F64LE, CODEC_ID_PCM_BLURAY, CODEC_ID_PCM_LXF, CODEC_ID_S302M,
  CODEC_ID_ADPCM_IMA_QT = 0x11000, CODEC_ID_ADPCM_IMA_WAV, CODEC_ID_ADPCM_IMA_DK3, CODEC_ID_ADPCM_IMA_DK4,
  CODEC_ID_ADPCM_IMA_WS, CODEC_ID_ADPCM_IMA_SMJPEG, CODEC_ID_ADPCM_MS, CODEC_ID_ADPCM_4XM,
  CODEC_ID_ADPCM_XA, CODEC_ID_ADPCM_ADX, CODEC_ID_ADPCM_EA, CODEC_ID_ADPCM_G726,
  CODEC_ID_ADPCM_CT, CODEC_ID_ADPCM_SWF, CODEC_ID_ADPCM_YAMAHA, CODEC_ID_ADPCM_SBPRO_4,
  CODEC_ID_ADPCM_SBPRO_3, CODEC_ID_ADPCM_SBPRO_2, CODEC_ID_ADPCM_THP, CODEC_ID_ADPCM_IMA_AMV,
  CODEC_ID_ADPCM_EA_R1, CODEC_ID_ADPCM_EA_R3, CODEC_ID_ADPCM_EA_R2, CODEC_ID_ADPCM_IMA_EA_SEAD,
  CODEC_ID_ADPCM_IMA_EA_EACS, CODEC_ID_ADPCM_EA_XAS, CODEC_ID_ADPCM_EA_MAXIS_XA, CODEC_ID_ADPCM_IMA_ISS,
  CODEC_ID_ADPCM_G722, 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_TWINVQ,
  CODEC_ID_TRUEHD, CODEC_ID_MP4ALS, CODEC_ID_ATRAC1, CODEC_ID_BINKAUDIO_RDFT,
  CODEC_ID_BINKAUDIO_DCT, CODEC_ID_AAC_LATM, CODEC_ID_QDMC, CODEC_ID_CELT,
  CODEC_ID_DVD_SUBTITLE = 0x17000, CODEC_ID_DVB_SUBTITLE, CODEC_ID_TEXT, CODEC_ID_XSUB,
  CODEC_ID_SSA, CODEC_ID_MOV_TEXT, CODEC_ID_HDMV_PGS_SUBTITLE, CODEC_ID_DVB_TELETEXT,
  CODEC_ID_SRT, CODEC_ID_MICRODVD, CODEC_ID_TTF = 0x18000, CODEC_ID_PROBE = 0x19000,
  CODEC_ID_MPEG2TS = 0x20000, CODEC_ID_FFMETADATA = 0x21000
}

Identify the syntax and semantics of the bitstream. 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 AVColorPrimaries {
  AVCOL_PRI_BT709 = 1, AVCOL_PRI_UNSPECIFIED = 2, AVCOL_PRI_BT470M = 4, AVCOL_PRI_BT470BG = 5,
  AVCOL_PRI_SMPTE170M = 6, AVCOL_PRI_SMPTE240M = 7, AVCOL_PRI_FILM = 8, AVCOL_PRI_NB
}

enum AVColorTransferCharacteristic {
  AVCOL_TRC_BT709 = 1, AVCOL_TRC_UNSPECIFIED = 2, AVCOL_TRC_GAMMA22 = 4, AVCOL_TRC_GAMMA28 = 5,
  AVCOL_TRC_NB
}

enum AVColorSpace {
  AVCOL_SPC_RGB = 0, AVCOL_SPC_BT709 = 1, AVCOL_SPC_UNSPECIFIED = 2, AVCOL_SPC_FCC = 4,
  AVCOL_SPC_BT470BG = 5, AVCOL_SPC_SMPTE170M = 6, AVCOL_SPC_SMPTE240M = 7, AVCOL_SPC_NB
}

enum AVColorRange { AVCOL_RANGE_UNSPECIFIED = 0, AVCOL_RANGE_MPEG = 1, AVCOL_RANGE_JPEG = 2, AVCOL_RANGE_NB }

enum AVChromaLocation {
  AVCHROMA_LOC_UNSPECIFIED = 0, AVCHROMA_LOC_LEFT = 1, AVCHROMA_LOC_CENTER = 2, AVCHROMA_LOC_TOPLEFT = 3,
  AVCHROMA_LOC_TOP = 4, AVCHROMA_LOC_BOTTOMLEFT = 5, AVCHROMA_LOC_BOTTOM = 6, AVCHROMA_LOC_NB
}

X X 3 4 X X are luma samples, 1 2 1-6 are possible chroma positions X X 5 6 X 0 is undefined/unknown position. More...

enum AVLPCType {
  AV_LPC_TYPE_DEFAULT = -1, AV_LPC_TYPE_NONE = 0, AV_LPC_TYPE_FIXED = 1, AV_LPC_TYPE_LEVINSON = 2,
  AV_LPC_TYPE_CHOLESKY = 3, AV_LPC_TYPE_NB
}

LPC analysis type. More...

enum AVAudioServiceType {
  AV_AUDIO_SERVICE_TYPE_MAIN = 0, AV_AUDIO_SERVICE_TYPE_EFFECTS = 1, AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2, AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3,
  AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4, AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5, AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6, AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7,
  AV_AUDIO_SERVICE_TYPE_KARAOKE = 8, AV_AUDIO_SERVICE_TYPE_NB
}

enum AVPacketSideDataType { AV_PKT_DATA_PALETTE }

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 void av_destruct_packet_nofree (AVPacket *pkt)

void av_destruct_packet (AVPacket *pkt)

Default packet destructor.

void av_init_packet (AVPacket *pkt)

Initialize optional fields of a packet with default values.

int av_new_packet (AVPacket *pkt, int size)

Allocate the payload of a packet and initialize its fields with default values.

void av_shrink_packet (AVPacket *pkt, int size)

Reduce packet size, correctly zeroing padding.

int av_grow_packet (AVPacket *pkt, int grow_by)

Increase packet size, correctly zeroing padding.

int av_dup_packet (AVPacket *pkt)

void av_free_packet (AVPacket *pkt)

Free a packet.

uint8_t * av_packet_new_side_data (AVPacket *pkt, enum AVPacketSideDataType type, int size)

Allocate new information of a packet.

uint8_t * av_packet_get_side_data (AVPacket *pkt, enum AVPacketSideDataType type, int *size)

Get side information from packet.

int av_packet_merge_side_data (AVPacket *pkt)

int av_packet_split_side_data (AVPacket *pkt)

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

Initialize audio resampling context.

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

void audio_resample_close (ReSampleContext *s)

Free resample context.

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

Initialize an audio resampler.

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

Resample an array of samples using a previously configured context.

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

Compensate samplerate/timestamp drift.

void av_resample_close (struct AVResampleContext *c)

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

Fill in the AVPicture fields.

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

Copy pixel data from an AVPicture into a buffer.

int avpicture_get_size (enum PixelFormat 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 (enum PixelFormat pix_fmt, int *h_shift, int *v_shift)

attribute_deprecated const char * avcodec_get_pix_fmt_name (enum PixelFormat pix_fmt)

Return the short name for a pixel format.

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

unsigned int avcodec_pix_fmt_to_codec_tag (enum PixelFormat pix_fmt)

Return a value representing the fourCC code associated to the pixel format pix_fmt, or 0 if no associated fourCC code can be found.

size_t av_get_codec_tag_string (char *buf, size_t buf_size, unsigned int codec_tag)

Put a string representing the codec tag codec_tag in buf.

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

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

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

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

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

Tell if an image really has transparent alpha values.

int avpicture_deinterlace (AVPicture *dst, const AVPicture *src, enum PixelFormat 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)

Return the LIBAVCODEC_VERSION_INT constant.

const char * avcodec_configuration (void)

Return the libavcodec build-time configuration.

const char * avcodec_license (void)

Return the libavcodec license.

void avcodec_init (void)

Initialize libavcodec.

void avcodec_register (AVCodec *codec)

Register the codec codec and initialize libavcodec.

AVCodec * avcodec_find_encoder (enum CodecID id)

Find a registered encoder with a matching codec ID.

AVCodec * avcodec_find_encoder_by_name (const char *name)

Find a registered encoder with the specified name.

AVCodec * avcodec_find_decoder (enum CodecID id)

Find a registered decoder with a matching codec ID.

AVCodec * avcodec_find_decoder_by_name (const char *name)

Find a registered decoder with the specified name.

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

const char * av_get_profile_name (const AVCodec *codec, int profile)

Return a name for the specified profile, if available.

void avcodec_get_context_defaults (AVCodecContext *s)

Set the fields of the given AVCodecContext to default values.

void avcodec_get_context_defaults2 (AVCodecContext *s, enum AVMediaType)

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

int avcodec_get_context_defaults3 (AVCodecContext *s, AVCodec *codec)

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)

Allocate an AVCodecContext and set its fields to default values.

AVCodecContext * avcodec_alloc_context2 (enum AVMediaType)

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

AVCodecContext * avcodec_alloc_context3 (AVCodec *codec)

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

int avcodec_copy_context (AVCodecContext *dest, const AVCodecContext *src)

Copy the settings of the source AVCodecContext into the destination AVCodecContext.

void avcodec_get_frame_defaults (AVFrame *pic)

Set the fields of the given AVFrame to default values.

AVFrame * avcodec_alloc_frame (void)

Allocate an AVFrame and set 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)

unsigned avcodec_get_edge_width (void)

Return the amount of padding in pixels which the get_buffer callback must provide around the edge of the image for codecs which do not have the CODEC_FLAG_EMU_EDGE flag.

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

Modify width and height values so that they will result in a memory buffer that is acceptable for the codec if you do not use any horizontal padding.

void avcodec_align_dimensions2 (AVCodecContext *s, int *width, int *height, int linesize_align[4])

Modify width and height values so that they will result in a memory buffer that is acceptable for the codec if you also ensure that all line sizes are a multiple of the respective linesize_align[i].

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

attribute_deprecated int avcodec_thread_init (AVCodecContext *s, int thread_count)

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

int avcodec_default_execute2 (AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2, int, int), void *arg, int *ret, int count)

int avcodec_open (AVCodecContext *avctx, AVCodec *codec)

Initialize the AVCodecContext to use the given AVCodec.

int avcodec_open2 (AVCodecContext *avctx, AVCodec *codec, AVDictionary **options)

Initialize the AVCodecContext to use the given AVCodec.

int avcodec_decode_audio3 (AVCodecContext *avctx, int16_t *samples, int *frame_size_ptr, AVPacket *avpkt)

Decode the audio frame of size avpkt->size from avpkt->data into samples.

int avcodec_decode_video2 (AVCodecContext *avctx, AVFrame *picture, int *got_picture_ptr, AVPacket *avpkt)

Decode the video frame of size avpkt->size from avpkt->data into picture.

int avcodec_decode_subtitle2 (AVCodecContext *avctx, AVSubtitle *sub, int *got_sub_ptr, AVPacket *avpkt)

Decode a subtitle message.

void avsubtitle_free (AVSubtitle *sub)

Frees all allocated data in the given subtitle struct.

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)

Encode an audio frame from samples into buf.

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

Encode 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)

attribute_deprecated char av_get_pict_type_char (int pict_type)

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

int av_get_bits_per_sample (enum CodecID codec_id)

Return codec bits per sample.

attribute_deprecated int av_get_bits_per_sample_format (enum AVSampleFormat sample_fmt)

AVCodecParser * av_parser_next (AVCodecParser *c)

void av_register_codec_parser (AVCodecParser *parser)

AVCodecParserContext * av_parser_init (int codec_id)

int av_parser_parse2 (AVCodecParserContext *s, AVCodecContext *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int64_t pts, int64_t dts, int64_t pos)

Parse a packet.

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, size_t min_size)

Reallocate the given block if it is not large enough, otherwise do nothing.

void av_fast_malloc (void *ptr, unsigned int *size, size_t min_size)

Allocate a buffer, reusing the given one if large enough.

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

Copy image src to dst.

int av_picture_crop (AVPicture *dst, const AVPicture *src, enum PixelFormat 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, enum PixelFormat pix_fmt, int padtop, int padbottom, int padleft, int padright, int *color)

Pad image.

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

Encode extradata length to a buffer.

void av_log_missing_feature (void *avc, const char *feature, int want_sample)

Logs a generic warning message about a missing feature.

void av_log_ask_for_sample (void *avc, const char *msg,...)

Log a generic warning message asking for a sample.

void av_register_hwaccel (AVHWAccel *hwaccel)

Register 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_PARSER_PTS_NB 4

Definition at line 3807 of file avcodec.h.

Referenced by av_parser_parse2(), and ff_fetch_timestamp().

#define AV_PKT_FLAG_KEY 0x0001

Definition at line 956 of file avcodec.h.

Referenced by asf_read_pts(), asf_write_packet(), av_read_frame_internal(), av_seek_frame_generic(), avi_write_packet(), avs_read_audio_packet(), avs_read_video_packet(), compute_pkt_fields(), dc1394_read_header(), decode_frame(), dirac_gptopts(), do_audio_out(), do_video_out(), dv_extract_audio_info(), dv_produce_packet(), ea_read_packet(), ff_asf_parse_packet(), ff_mov_add_hinted_packet(), ff_mov_write_packet(), ff_rm_parse_packet(), ff_rm_retrieve_cache(), ffm_read_packet(), ffm_write_packet(), flv_read_packet(), flv_write_packet(), get_needed_flags(), http_prepare_data(), iff_read_packet(), lmlm4_read_packet(), lxf_read_packet(), main(), matroska_parse_block(), microdvd_read_packet(), mkv_write_packet(), mkv_write_packet_internal(), mov_create_chapter_track(), mov_read_packet(), mpeg_mux_write_packet(), msnwc_tcp_read_packet(), nsv_read_chunk(), nut_read_packet(), nuv_packet(), ogg_read_packet(), ogg_read_timestamp(), ogg_write_packet(), ogm_packet(), old_dirac_gptopts(), output_packet(), pkt_dump_internal(), prepare_packet(), put_payload_header(), qt_rtp_parse_packet(), read_packet(), rm_write_audio(), rm_write_video(), rpl_read_packet(), search_hi_lo_keyframes(), show_packet(), siff_read_packet(), srt_read_packet(), theora_gptopts(), tmv_read_packet(), vc1t_read_packet(), vc1test_write_packet(), write_audio_frame(), write_frame(), write_packet(), write_video_frame(), and yop_read_packet().

#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000

Definition at line 424 of file avcodec.h.

Referenced by audio_decode_example(), avcodec_decode_audio3(), dv_assemble_frame(), dv_init_mux(), output_packet(), try_decode_frame(), and vorbis_parse_id_hdr().

#define AVPALETTE_COUNT 256

Definition at line 2907 of file avcodec.h.

Referenced by cmv_process_header(), decode_frame(), rl2_decode_init(), tgv_decode_frame(), and xan_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 2906 of file avcodec.h.

Referenced by asf_read_stream_properties(), cinepak_decode_frame(), cmv_decode_frame(), decode_dvd_subtitles(), decode_frame(), display_end_segment(), dvbsub_display_end_segment(), ff_asf_parse_packet(), flic_decode_frame_8BPP(), idcin_decode_frame(), idcin_read_packet(), ipvideo_decode_frame(), ipvideo_decode_opcodes(), load_ipmovie_packet(), mm_decode_frame(), mov_read_packet(), msrle_decode_frame(), msvideo1_decode_8bit(), msvideo1_decode_frame(), qtrle_decode_frame(), raw_decode(), rl2_decode_frame(), smc_decode_frame(), smc_decode_stream(), tgv_decode_frame(), and xan_decode_frame().

#define CH_BACK_CENTER AV_CH_BACK_CENTER

Definition at line 387 of file avcodec.h.

#define CH_BACK_LEFT AV_CH_BACK_LEFT

Definition at line 383 of file avcodec.h.

#define CH_BACK_RIGHT AV_CH_BACK_RIGHT

Definition at line 384 of file avcodec.h.

#define CH_FRONT_CENTER AV_CH_FRONT_CENTER

Definition at line 381 of file avcodec.h.

#define CH_FRONT_LEFT AV_CH_FRONT_LEFT

Definition at line 379 of file avcodec.h.

#define CH_FRONT_LEFT_OF_CENTER AV_CH_FRONT_LEFT_OF_CENTER

Definition at line 385 of file avcodec.h.

#define CH_FRONT_RIGHT AV_CH_FRONT_RIGHT

Definition at line 380 of file avcodec.h.

#define CH_FRONT_RIGHT_OF_CENTER AV_CH_FRONT_RIGHT_OF_CENTER

Definition at line 386 of file avcodec.h.

#define CH_LAYOUT_2_1 AV_CH_LAYOUT_2_1

Definition at line 408 of file avcodec.h.

#define CH_LAYOUT_2_2 AV_CH_LAYOUT_2_2

Definition at line 411 of file avcodec.h.

#define CH_LAYOUT_4POINT0 AV_CH_LAYOUT_4POINT0

Definition at line 410 of file avcodec.h.

#define CH_LAYOUT_5POINT0 AV_CH_LAYOUT_5POINT0

Definition at line 413 of file avcodec.h.

#define CH_LAYOUT_5POINT0_BACK AV_CH_LAYOUT_5POINT0_BACK

Definition at line 415 of file avcodec.h.

#define CH_LAYOUT_5POINT1 AV_CH_LAYOUT_5POINT1

Definition at line 414 of file avcodec.h.

#define CH_LAYOUT_5POINT1_BACK AV_CH_LAYOUT_5POINT1_BACK

Definition at line 416 of file avcodec.h.

#define CH_LAYOUT_7POINT0 AV_CH_LAYOUT_7POINT0

Definition at line 417 of file avcodec.h.

#define CH_LAYOUT_7POINT1 AV_CH_LAYOUT_7POINT1

Definition at line 418 of file avcodec.h.

#define CH_LAYOUT_7POINT1_WIDE AV_CH_LAYOUT_7POINT1_WIDE

Definition at line 419 of file avcodec.h.

#define CH_LAYOUT_MONO AV_CH_LAYOUT_MONO

Definition at line 406 of file avcodec.h.

#define CH_LAYOUT_NATIVE AV_CH_LAYOUT_NATIVE

Channel mask value used for AVCodecContext.request_channel_layout to indicate that the user requests the channel order of the decoder output to be the native codec channel order.

Definition at line 403 of file avcodec.h.

#define CH_LAYOUT_QUAD AV_CH_LAYOUT_QUAD

Definition at line 412 of file avcodec.h.

#define CH_LAYOUT_STEREO AV_CH_LAYOUT_STEREO

Definition at line 407 of file avcodec.h.

#define CH_LAYOUT_STEREO_DOWNMIX AV_CH_LAYOUT_STEREO_DOWNMIX

Definition at line 420 of file avcodec.h.

#define CH_LAYOUT_SURROUND AV_CH_LAYOUT_SURROUND

Definition at line 409 of file avcodec.h.

#define CH_LOW_FREQUENCY AV_CH_LOW_FREQUENCY

Definition at line 382 of file avcodec.h.

#define CH_SIDE_LEFT AV_CH_SIDE_LEFT

Definition at line 388 of file avcodec.h.

#define CH_SIDE_RIGHT AV_CH_SIDE_RIGHT

Definition at line 389 of file avcodec.h.

#define CH_STEREO_LEFT AV_CH_STEREO_LEFT

Definition at line 397 of file avcodec.h.

#define CH_STEREO_RIGHT AV_CH_STEREO_RIGHT

Definition at line 398 of file avcodec.h.

#define CH_TOP_BACK_CENTER AV_CH_TOP_BACK_CENTER

Definition at line 395 of file avcodec.h.

#define CH_TOP_BACK_LEFT AV_CH_TOP_BACK_LEFT

Definition at line 394 of file avcodec.h.

#define CH_TOP_BACK_RIGHT AV_CH_TOP_BACK_RIGHT

Definition at line 396 of file avcodec.h.

#define CH_TOP_CENTER AV_CH_TOP_CENTER

Definition at line 390 of file avcodec.h.

#define CH_TOP_FRONT_CENTER AV_CH_TOP_FRONT_CENTER

Definition at line 392 of file avcodec.h.

#define CH_TOP_FRONT_LEFT AV_CH_TOP_FRONT_LEFT

Definition at line 391 of file avcodec.h.

#define CH_TOP_FRONT_RIGHT AV_CH_TOP_FRONT_RIGHT

Definition at line 393 of file avcodec.h.

#define CODEC_CAP_CHANNEL_CONF 0x0400

Codec should fill in channel configuration and samplerate instead of container.

Definition at line 677 of file avcodec.h.

Referenced by avformat_find_stream_info().

#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 647 of file avcodec.h.

Referenced by avcodec_decode_audio3(), avcodec_decode_video2(), avcodec_encode_audio(), avcodec_encode_video(), and submit_packet().

#define CODEC_CAP_DR1 0x0002

Codec uses get_buffer() for allocating buffers and supports custom allocators.

If not set, it might not use get_buffer() at all or use operations that assume the buffer was allocated by avcodec_default_get_buffer.

Definition at line 637 of file avcodec.h.

Referenced by opt_codecs(), and stream_component_open().

#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001

Decoder can use draw_horiz_band callback.

Definition at line 631 of file avcodec.h.

Referenced by MPV_frame_end(), and opt_codecs().

#define CODEC_CAP_EXPERIMENTAL 0x0200

Codec is experimental and is thus avoided in favor of non experimental encoders.

Definition at line 673 of file avcodec.h.

Referenced by avcodec_find_decoder(), avcodec_find_encoder(), and find_codec_or_die().

#define CODEC_CAP_FRAME_THREADS 0x1000

Codec supports frame-level multithreading.

Definition at line 687 of file avcodec.h.

Referenced by validate_thread_parameters().

#define CODEC_CAP_HWACCEL 0x0010

Definition at line 642 of file avcodec.h.

#define CODEC_CAP_HWACCEL_VDPAU 0x0080

Codec can export data for HW decoding (VDPAU).

Definition at line 656 of file avcodec.h.

Referenced by decode_nal_units(), execute_decode_slices(), ff_draw_horiz_band(), ff_er_frame_end(), ff_h263_decode_frame(), field_end(), MPV_frame_end(), and vc1_decode_frame().

#define CODEC_CAP_LOSSLESS 0x80000000

Codec is lossless.

Definition at line 695 of file avcodec.h.

Referenced by choose_sample_fmt().

#define CODEC_CAP_NEG_LINESIZES 0x0800

Codec is able to deal with negative linesizes.

Definition at line 682 of file avcodec.h.

#define CODEC_CAP_PARSE_ONLY 0x0004

Definition at line 639 of file avcodec.h.

Referenced by open_parser().

#define CODEC_CAP_SLICE_THREADS 0x2000

Codec supports slice-based (or partition-based) multithreading.

Definition at line 691 of file avcodec.h.

Referenced by validate_thread_parameters().

#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 652 of file avcodec.h.

Referenced by output_packet().

#define CODEC_CAP_SUBFRAMES 0x0100

Codec can output multiple frames per AVPacket Normally demuxers return one frame at a time, demuxers which do not do are connected to a parser to split what they return into proper frames.

This flag is reserved to the very rare category of codecs which have a bitstream that cannot be split into frames without timeconsuming operations like full decoding. Demuxers carring such bitstreams thus may return multiple frames in a packet. This has many disadvantages like prohibiting stream copy in many cases thus it should only be considered as a last resort.

Definition at line 668 of file avcodec.h.

#define CODEC_CAP_TRUNCATED 0x0008

Definition at line 640 of file avcodec.h.

Referenced by opt_codecs(), and video_decode_example().

#define CODEC_FLAG2_8X8DCT 0x00000080

H.264 high profile 8x8 transform.

Definition at line 608 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_AUD 0x00000200

H.264 access unit delimiters.

Definition at line 610 of file avcodec.h.

Referenced by X264_init(), and XAVS_init().

#define CODEC_FLAG2_BIT_RESERVOIR 0x00020000

Use a bit reservoir when encoding if possible.

Definition at line 618 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 605 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_BRDO 0x00000400

B-frame rate-distortion optimization.

Definition at line 611 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 616 of file avcodec.h.

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

#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000

timecode is in drop frame format.

Definition at line 614 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 601 of file avcodec.h.

Referenced by decode_slice_header(), ff_h263_decode_frame(), ff_h264_decode_nal(), mpeg_decode_mb(), and stream_component_open().

#define CODEC_FLAG2_FASTPSKIP 0x00000100

H.264 fast pskip.

Definition at line 609 of file avcodec.h.

Referenced by X264_init(), and XAVS_init().

#define CODEC_FLAG2_INTRA_REFRESH 0x00200000

Use periodic insertion of intra blocks instead of keyframes.

Definition at line 622 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_INTRA_VLC 0x00000800

Use MPEG-2 intra VLC table.

Definition at line 612 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 604 of file avcodec.h.

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

#define CODEC_FLAG2_MBTREE 0x00040000

Use macroblock tree ratecontrol (x264 only).

Definition at line 619 of file avcodec.h.

Referenced by X264_init(), and XAVS_init().

#define CODEC_FLAG2_MEMC_ONLY 0x00001000

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

Definition at line 613 of file avcodec.h.

Referenced by config().

#define CODEC_FLAG2_MIXED_REFS 0x00000040

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

Definition at line 607 of file avcodec.h.

Referenced by X264_init(), and XAVS_init().

#define CODEC_FLAG2_NO_OUTPUT 0x00000004

Skip bitstream encoding.

Definition at line 603 of file avcodec.h.

Referenced by encode_bgr_bitstream(), ff_h263_encode_motion_vector(), and mpeg4_encode_blocks().

#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000

Use MPEG-2 nonlinear quantizer.

Definition at line 617 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG2_PSY 0x00080000

Use psycho visual optimizations.

Definition at line 620 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_SKIP_RD 0x00004000

RD optimal MB level residual skipping.

Definition at line 615 of file avcodec.h.

Referenced by encode_thread().

#define CODEC_FLAG2_SSIM 0x00100000

Compute SSIM during encoding, error[] values are undefined.

Definition at line 621 of file avcodec.h.

Referenced by X264_init().

#define CODEC_FLAG2_STRICT_GOP 0x00000002

Strictly enforce GOP size.

Definition at line 602 of file avcodec.h.

Referenced by select_input_picture().

#define CODEC_FLAG2_WPRED 0x00000020

H.264 weighted biprediction for B-frames.

Definition at line 606 of file avcodec.h.

Referenced by X264_init(), and XAVS_init().

#define CODEC_FLAG_4MV 0x0004

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

Definition at line 564 of file avcodec.h.

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

#define CODEC_FLAG_AC_PRED 0x01000000

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

Definition at line 590 of file avcodec.h.

Referenced by mpeg4_encode_mb(), and MPV_encode_init().

#define CODEC_FLAG_ALT_SCAN 0x00100000

Use alternate scan.

Definition at line 586 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG_BITEXACT 0x00800000

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

Definition at line 588 of file avcodec.h.

Referenced by aac_encode_frame(), ac3_decode_init(), avformat_write_header(), dsputil_init_mmx(), dsputil_init_pix_mmx(), dsputilenc_init_mmx(), encode_block(), ff_ac3_encode_init(), ff_dct_common_init(), ff_fmt_convert_init_altivec(), ff_fmt_convert_init_arm(), flac_write_header(), float_init_altivec(), jpeg_put_comments(), mkv_write_header(), mov_write_udta_tag(), mpeg4_encode_vol_header(), MPV_common_init_mmx(), mxf_write_header(), mxf_write_identification(), ogg_write_header(), parse_ffconfig(), and read_ffserver_streams().

#define CODEC_FLAG_CBP_RD 0x04000000

Use rate distortion optimization for cbp.

Definition at line 592 of file avcodec.h.

Referenced by encode_mb_internal(), get_b_cbp(), get_p_cbp(), and MPV_encode_init().

#define CODEC_FLAG_CLOSED_GOP 0x80000000

Definition at line 600 of file avcodec.h.

Referenced by libschroedinger_encode_init(), mpeg1_encode_sequence_header(), mpeg4_encode_gop_header(), MPV_encode_init(), and select_input_picture().

#define CODEC_FLAG_EMU_EDGE 0x4000

Don't draw edges.

Definition at line 579 of file avcodec.h.

Referenced by avcodec_default_get_buffer(), chroma_4mv_motion(), chroma_4mv_motion_lowres(), decode_frame(), decode_init(), decode_slice_header(), ff_draw_horiz_band(), ff_mspel_motion(), ff_rv34_decode_init(), frame_start(), gmc1_motion(), hpel_motion(), intra_predict(), mjpeg_decode_scan(), MPV_frame_end(), MPV_motion_internal(), opt_input_file(), stream_component_open(), svq3_mc_dir_part(), vc1_decode_init(), and vp8_decode_frame().

#define CODEC_FLAG_EXTERN_HUFF 0x1000

Use external Huffman table (for MJPEG).

Definition at line 577 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 587 of file avcodec.h.

Referenced by aac_encode_init(), aacPlus_encode_init(), add_audio_stream(), add_video_stream(), av_parser_change(), avformat_write_header(), encode_init(), Faac_encode_init(), ffm_read_header(), ffm_write_header(), mpeg4_encode_picture_header(), new_audio_stream(), new_data_stream(), new_subtitle_stream(), new_video_stream(), remove_extradata(), X264_init(), and XAVS_init().

#define CODEC_FLAG_GMC 0x0020

Use GMC.

Definition at line 566 of file avcodec.h.

#define CODEC_FLAG_GRAY 0x2000

Only decode/encode grayscale.

Definition at line 578 of file avcodec.h.

Referenced by backup_mb_border(), comp_block(), dct_get(), decode_slice(), dnxhd_decode_macroblock(), encode_mb_internal(), ff_h264_filter_mb(), ff_h264_filter_mb_fast(), ff_mspel_motion(), ff_wmv2_add_mb(), ff_xvmc_decode_mb(), gmc1_motion(), gmc_motion(), hl_decode_mb_444_internal(), 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(), unpack_dct_coeffs(), 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_smooth_overlap_filter_iblk(), and xchg_mb_border().

#define CODEC_FLAG_H263P_AIV 0x00000008

H.263 alternative inter VLC.

Definition at line 594 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000

Definition at line 597 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG_H263P_UMV 0x02000000

unlimited motion vector

Definition at line 591 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 574 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 584 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(), X264_init(), and XAVS_init().

#define CODEC_FLAG_INTERLACED_ME 0x20000000

interlaced motion estimation

Definition at line 598 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 596 of file avcodec.h.

Referenced by MPV_encode_init(), and X264_init().

#define CODEC_FLAG_LOW_DELAY 0x00080000

Force low delay.

Definition at line 585 of file avcodec.h.

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

#define CODEC_FLAG_MV0 0x0040

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

Definition at line 567 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 583 of file avcodec.h.

Referenced by adaptive_quantization().

#define CODEC_FLAG_OBMC 0x00000001

OBMC.

Definition at line 595 of file avcodec.h.

Referenced by MPV_encode_init().

#define CODEC_FLAG_PART 0x0080

Use data partitioning.

Definition at line 568 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 575 of file avcodec.h.

Referenced by avcodec_string(), encode_bgr_bitstream(), encode_frame(), encode_init(), encode_thread(), h263_encode_mb(), mpeg4_encode_mb(), MPV_encode_picture(), new_video_stream(), transcode(), vp8_encode(), vp8_init(), write_slice_end(), X264_init(), and XAVS_init().

#define CODEC_FLAG_PASS2 0x0400

Use internal 2pass ratecontrol in second pass mode.

Definition at line 576 of file avcodec.h.

Referenced by avcodec_string(), encode_frame(), encode_init(), encode_picture(), ff_rate_control_init(), ff_rate_control_uninit(), ff_rate_estimate_qscale(), MPV_encode_init(), new_video_stream(), select_input_picture(), transcode(), vp8_init(), X264_init(), and XAVS_init().

#define CODEC_FLAG_PSNR 0x8000

error[?] variables will be set during encoding.

Definition at line 580 of file avcodec.h.

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

#define CODEC_FLAG_QP_RD 0x08000000

Use rate distortion optimization for qp selectioon.

Definition at line 593 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 565 of file avcodec.h.

Referenced by config(), estimate_best_b_count(), ff_init_me(), get_flags(), and MPV_encode_init().

#define CODEC_FLAG_QSCALE 0x0002

Use fixed qscale.

Definition at line 563 of file avcodec.h.

Referenced by aac_encode_frame(), config(), encode_init(), encode_picture(), estimate_best_b_count(), Faac_encode_init(), lame_window_init(), libdirac_encode_init(), libschroedinger_encode_init(), libspeex_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 599 of file avcodec.h.

Referenced by mpeg1_encode_picture_header().

#define CODEC_FLAG_TRUNCATED 0x00010000

Definition at line 581 of file avcodec.h.

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

#define FF_AA_AUTO 0

Definition at line 1968 of file avcodec.h.

#define FF_AA_FASTINT 1

Definition at line 1969 of file avcodec.h.

#define FF_AA_FLOAT 3

Definition at line 1971 of file avcodec.h.

#define FF_AA_INT 2

Definition at line 1970 of file avcodec.h.

#define FF_ALPHA_SEMI_TRANSP 0x0002

Definition at line 3298 of file avcodec.h.

Referenced by get_alpha_info_pal8(), and img_get_alpha_info().

#define FF_ALPHA_TRANSP 0x0001

Definition at line 3297 of file avcodec.h.

Referenced by get_alpha_info_pal8(), and img_get_alpha_info().

#define FF_ASPECT_EXTENDED 15

Definition at line 1059 of file avcodec.h.

Referenced by decode_vol_header(), ff_h263_aspect_to_info(), h263_decode_picture_header(), h263_encode_picture_header(), and mpeg4_encode_vol_header().

#define FF_B_TYPE AV_PICTURE_TYPE_B

Bi-dir predicted.

Definition at line 880 of file avcodec.h.

Referenced by ff_mpeg_update_thread_context(), and MPV_report_decode_progress().

#define FF_BI_TYPE AV_PICTURE_TYPE_BI

Definition at line 884 of file avcodec.h.

#define FF_BUFFER_HINTS_PRESERVE 0x04

#define FF_BUFFER_HINTS_READABLE 0x02

Definition at line 888 of file avcodec.h.

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

#define FF_BUFFER_HINTS_REUSABLE 0x08

#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 874 of file avcodec.h.

Referenced by ff_copy_picture(), ff_print_debug_info(), and update_frames().

#define FF_BUFFER_TYPE_INTERNAL 1

Definition at line 871 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 873 of file avcodec.h.

Referenced by estimate_best_b_count(), ff_alloc_picture(), free_picture(), mpeg4_encode_mb(), select_input_picture(), and skip_check().

#define FF_BUFFER_TYPE_USER 2

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

Definition at line 872 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 1253 of file avcodec.h.

#define FF_BUG_AMV 32

Definition at line 1252 of file avcodec.h.

Referenced by get_amv().

#define FF_BUG_AUTODETECT 1

autodetection

Definition at line 1247 of file avcodec.h.

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

#define FF_BUG_DC_CLIP 4096

Definition at line 1260 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and ff_mpeg4_pred_dc().

#define FF_BUG_DIRECT_BLOCKSIZE 512

Definition at line 1257 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and ff_mpeg4_set_direct_mv().

#define FF_BUG_EDGE 1024

Definition at line 1258 of file avcodec.h.

Referenced by decode_vop_header(), and ff_h263_decode_frame().

#define FF_BUG_HPEL_CHROMA 2048

Definition at line 1259 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 1261 of file avcodec.h.

Referenced by encode_init(), mpeg4_encode_picture_header(), and mpeg4_encode_vol_header().

#define FF_BUG_NO_PADDING 16

Definition at line 1251 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 1248 of file avcodec.h.

#define FF_BUG_QPEL_CHROMA 64

Definition at line 1254 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and qpel_motion().

#define FF_BUG_QPEL_CHROMA2 256

Definition at line 1256 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and qpel_motion().

#define FF_BUG_STD_QPEL 128

Definition at line 1255 of file avcodec.h.

Referenced by ff_h263_decode_frame().

#define FF_BUG_TRUNCATED 16384

Definition at line 1262 of file avcodec.h.

Referenced by decode_nal_units(), and decode_slice().

#define FF_BUG_UMP4 8

Definition at line 1250 of file avcodec.h.

Referenced by decode_vop_header(), and ff_h263_decode_frame().

#define FF_BUG_XVID_ILACE 4

Definition at line 1249 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and mpeg4_decode_mb().

#define FF_CMP_BIT 5

Definition at line 1671 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_CHROMA 256

Definition at line 1681 of file avcodec.h.

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

#define FF_CMP_DCT 3

Definition at line 1669 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_DCT264 14

Definition at line 1680 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_DCTMAX 13

Definition at line 1679 of file avcodec.h.

Referenced by add_codec(), and ff_set_cmp().

#define FF_CMP_NSSE 10

Definition at line 1676 of file avcodec.h.

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

#define FF_CMP_PSNR 4

Definition at line 1670 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_RD 6

Definition at line 1672 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 1666 of file avcodec.h.

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

#define FF_CMP_SATD 2

Definition at line 1668 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_SSE 1

Definition at line 1667 of file avcodec.h.

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

#define FF_CMP_VSAD 8

Definition at line 1674 of file avcodec.h.

Referenced by ff_set_cmp().

#define FF_CMP_VSSE 9

Definition at line 1675 of file avcodec.h.

Referenced by encode_mb_internal(), and ff_set_cmp().

#define FF_CMP_W53 11

Definition at line 1677 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_W97 12

Definition at line 1678 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_ZERO 7

Definition at line 1673 of file avcodec.h.

Referenced by ff_set_cmp().

#define FF_CODER_TYPE_AC 1

Definition at line 1806 of file avcodec.h.

Referenced by X264_init().

#define FF_CODER_TYPE_DEFLATE 4

Definition at line 1809 of file avcodec.h.

#define FF_CODER_TYPE_RAW 2

Definition at line 1807 of file avcodec.h.

Referenced by encode_frame(), and targa_encode_frame().

#define FF_CODER_TYPE_RLE 3

Definition at line 1808 of file avcodec.h.

#define FF_CODER_TYPE_VLC 0

Definition at line 1805 of file avcodec.h.

Referenced by libdirac_encode_init(), and libschroedinger_encode_init().

#define FF_COMMON_FRAME

Definition at line 750 of file avcodec.h.

#define FF_COMPLIANCE_EXPERIMENTAL -2

Allow nonstandardized experimental things.

Definition at line 1296 of file avcodec.h.

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

#define FF_COMPLIANCE_NORMAL 0

Definition at line 1294 of file avcodec.h.

Referenced by encode_init(), ff_fix_long_p_mvs(), ff_get_best_fcode(), mov_get_codec_tag(), and validate_codec_tag().

#define FF_COMPLIANCE_STRICT 1

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

Definition at line 1293 of file avcodec.h.

Referenced by decode_postinit().

#define FF_COMPLIANCE_UNOFFICIAL -1

Allow unofficial extensions.

Definition at line 1295 of file avcodec.h.

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

#define FF_COMPLIANCE_VERY_STRICT 2

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

Definition at line 1292 of file avcodec.h.

Referenced by mpeg4_encode_picture_header().

#define FF_COMPRESSION_DEFAULT -1

Definition at line 2341 of file avcodec.h.

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

#define FF_DCT_ALTIVEC 5

Definition at line 1466 of file avcodec.h.

Referenced by dsputil_init_ppc(), and MPV_common_init_altivec().

#define FF_DCT_AUTO 0

Definition at line 1461 of file avcodec.h.

Referenced by dsputil_init_bfin(), 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 1467 of file avcodec.h.

Referenced by dsputil_init().

#define FF_DCT_FASTINT 1

Definition at line 1462 of file avcodec.h.

Referenced by dsputil_init(), and parse_ffconfig().

#define FF_DCT_INT 2

Definition at line 1463 of file avcodec.h.

#define FF_DCT_MLIB 4

Definition at line 1465 of file avcodec.h.

Referenced by MPV_common_init_mlib().

#define FF_DCT_MMX 3

Definition at line 1464 of file avcodec.h.

Referenced by dsputilenc_init_mmx(), and MPV_common_init_mmx().

#define FF_DEBUG_BITSTREAM 4

Definition at line 1609 of file avcodec.h.

Referenced by decode_init(), and pcm_bluray_decode_frame().

#define FF_DEBUG_BUFFERS 0x00008000

Definition at line 1622 of file avcodec.h.

Referenced by avcodec_default_get_buffer(), avcodec_default_release_buffer(), and ff_thread_release_buffer().

#define FF_DEBUG_BUGS 0x00001000

Definition at line 1619 of file avcodec.h.

Referenced by decode_unregistered_user_data(), and ff_h263_decode_frame().

#define FF_DEBUG_DCT_COEFF 0x00000040

Definition at line 1613 of file avcodec.h.

Referenced by ff_alloc_picture(), MPV_decode_mb_internal(), and transcode().

#define FF_DEBUG_ER 0x00000400

Definition at line 1617 of file avcodec.h.

Referenced by ff_er_frame_end().

#define FF_DEBUG_MB_TYPE 8

Definition at line 1610 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_MMCO 0x00000800

Definition at line 1618 of file avcodec.h.

Referenced by ff_h264_execute_ref_pic_marking(), find_short(), print_long_term(), print_short_term(), and remove_short().

#define FF_DEBUG_MV 32

Definition at line 1612 of file avcodec.h.

Referenced by ff_alloc_picture(), and opt_input_file().

#define FF_DEBUG_PICT_INFO 1

#define FF_DEBUG_PTS 0x00000200

Definition at line 1616 of file avcodec.h.

Referenced by decode_vop_header().

#define FF_DEBUG_QP 16

Definition at line 1611 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 1608 of file avcodec.h.

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

#define FF_DEBUG_SKIP 0x00000080

Definition at line 1614 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_STARTCODE 0x00000100

Definition at line 1615 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_THREADS 0x00010000

Definition at line 1623 of file avcodec.h.

Referenced by ff_thread_await_progress(), and ff_thread_report_progress().

#define FF_DEBUG_VIS_MB_TYPE 0x00004000

Definition at line 1621 of file avcodec.h.

Referenced by ff_print_debug_info(), MPV_common_init(), and transcode().

#define FF_DEBUG_VIS_MV_B_BACK 0x00000004

Definition at line 1633 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_VIS_MV_B_FOR 0x00000002

Definition at line 1632 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_VIS_MV_P_FOR 0x00000001

Definition at line 1631 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_VIS_QP 0x00002000

Definition at line 1620 of file avcodec.h.

Referenced by ff_print_debug_info(), MPV_common_init(), and transcode().

#define FF_DEFAULT_QUANT_BIAS 999999

Definition at line 1768 of file avcodec.h.

Referenced by dnxhd_encode_init(), and MPV_encode_init().

#define FF_DTG_AFD_14_9 11

Definition at line 1748 of file avcodec.h.

#define FF_DTG_AFD_16_9 10

Definition at line 1747 of file avcodec.h.

#define FF_DTG_AFD_16_9_SP_14_9 14

Definition at line 1750 of file avcodec.h.

#define FF_DTG_AFD_4_3 9

Definition at line 1746 of file avcodec.h.

#define FF_DTG_AFD_4_3_SP_14_9 13

Definition at line 1749 of file avcodec.h.

#define FF_DTG_AFD_SAME 8

Definition at line 1745 of file avcodec.h.

#define FF_DTG_AFD_SP_4_3 15

Definition at line 1751 of file avcodec.h.

#define FF_EC_DEBLOCK 2

Definition at line 1556 of file avcodec.h.

Referenced by ff_er_frame_end().

#define FF_EC_GUESS_MVS 1

Definition at line 1555 of file avcodec.h.

Referenced by guess_mv().

#define FF_ER_AGGRESSIVE 3

Definition at line 1314 of file avcodec.h.

Referenced by decode_slice(), huffman_decode(), and mpeg_decode_slice().

#define FF_ER_CAREFUL 1

Definition at line 1312 of file avcodec.h.

Referenced by ac3_decode_frame(), decode_frame(), decode_init(), and read_specific_config().

#define FF_ER_COMPLIANT 2

Definition at line 1313 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 1315 of file avcodec.h.

#define FF_I_TYPE AV_PICTURE_TYPE_I

Intra.

Definition at line 878 of file avcodec.h.

Referenced by encode_frame(), flashsv2_encode_frame(), and get_siz().

#define FF_IDCT_ALTIVEC 8

Definition at line 1518 of file avcodec.h.

Referenced by dsputil_init_ppc(), and MPV_common_init_altivec().

#define FF_IDCT_ARM 7

Definition at line 1517 of file avcodec.h.

Referenced by dsputil_init_arm().

#define FF_IDCT_AUTO 0

#define FF_IDCT_BINK 24

Definition at line 1534 of file avcodec.h.

Referenced by decode_init(), and dsputil_init().

#define FF_IDCT_CAVS 15

Definition at line 1525 of file avcodec.h.

Referenced by decode_pic(), and dsputil_init_mmx().

#define FF_IDCT_EA 21

Definition at line 1531 of file avcodec.h.

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

#define FF_IDCT_FAAN 20

Definition at line 1530 of file avcodec.h.

Referenced by dsputil_init().

#define FF_IDCT_H264 11

Definition at line 1521 of file avcodec.h.

#define FF_IDCT_INT 1

Definition at line 1511 of file avcodec.h.

Referenced by dsputil_init().

#define FF_IDCT_IPP 13

Definition at line 1523 of file avcodec.h.

#define FF_IDCT_LIBMPEG2MMX 4

Definition at line 1514 of file avcodec.h.

Referenced by dsputil_init_mmx().

#define FF_IDCT_MLIB 6

Definition at line 1516 of file avcodec.h.

Referenced by MPV_common_init_mlib().

#define FF_IDCT_PS2 5

Definition at line 1515 of file avcodec.h.

Referenced by dsputil_init_mmi().

#define FF_IDCT_SH4 9

Definition at line 1519 of file avcodec.h.

Referenced by dsputil_init_sh4().

#define FF_IDCT_SIMPLE 2

Definition at line 1512 of file avcodec.h.

Referenced by decode_init(), parse_ffconfig(), and vcr2_init_sequence().

#define FF_IDCT_SIMPLEALPHA 23

Definition at line 1533 of file avcodec.h.

Referenced by dsputil_init_alpha().

#define FF_IDCT_SIMPLEARM 10

Definition at line 1520 of file avcodec.h.

Referenced by dsputil_init_arm().

#define FF_IDCT_SIMPLEARMV5TE 16

Definition at line 1526 of file avcodec.h.

Referenced by ff_dsputil_init_armv5te().

#define FF_IDCT_SIMPLEARMV6 17

Definition at line 1527 of file avcodec.h.

Referenced by ff_dsputil_init_armv6().

#define FF_IDCT_SIMPLEMMX 3

Definition at line 1513 of file avcodec.h.

Referenced by dsputil_init_mmx().

#define FF_IDCT_SIMPLENEON 22

Definition at line 1532 of file avcodec.h.

Referenced by ff_dsputil_init_neon().

#define FF_IDCT_SIMPLEVIS 18

Definition at line 1528 of file avcodec.h.

Referenced by dsputil_init_vis().

#define FF_IDCT_VP3 12

Definition at line 1522 of file avcodec.h.

Referenced by dsputil_init(), dsputil_init_bfin(), dsputil_init_mmx(), dsputil_init_ppc(), ff_dsputil_init_neon(), ff_vp56_init(), render_slice(), and vp3_decode_init().

#define FF_IDCT_WMV2 19

Definition at line 1529 of file avcodec.h.

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

#define FF_IDCT_XVIDMMX 14

Definition at line 1524 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 433 of file avcodec.h.

Referenced by a64multi_init_encoder(), aac_adtstoasc_filter(), aac_encode_init(), aacPlus_encode_init(), aiff_read_header(), apc_read_header(), asf_read_stream_properties(), atrac3_decode_init(), audio_decode_example(), av_grow_packet(), av_new_packet(), av_packet_merge_side_data(), av_packet_new_side_data(), av_packet_split_side_data(), av_parser_change(), av_parser_parse2(), av_shrink_packet(), avcodec_copy_context(), avformat_find_stream_info(), avi_read_header(), avio_close_dyn_buf(), avisynth_read_header(), celt_header(), cook_decode_init(), decode_frame(), decode_i_frame(), decode_init(), decode_p_frame(), decode_stream_header(), dshow_add_device(), dump_extradata(), extract_header(), Faac_encode_init(), ff_asf_parse_packet(), ff_combine_frame(), ff_h263_decode_frame(), ff_h264_decode_nal(), ff_mjpeg_find_marker(), ff_mp4_read_dec_config_descr(), ff_mpeg_update_thread_context(), ff_parse_mpeg2_descriptor(), fixup_vorbis_headers(), flac_header(), flac_read_header(), flic_decode_frame_8BPP(), flv_get_extradata(), h264_mp4toannexb_filter(), h264_new_context(), iff_read_header(), imx_dump_header(), latm_decode_audio_specific_config(), matroska_fix_ass_packet(), matroska_read_header(), mimic_decode_frame(), mjpega_dump_header(), mov2textsub(), mov_read_extradata(), mov_read_glbl(), mov_read_smi(), mov_read_strf(), mov_read_stsz(), mov_read_wave(), mp3_header_compress(), mp3_header_decompress(), mp_decode_frame(), mpc7_decode_frame(), mpc8_parse_seektable(), mpc8_read_header(), mpc_read_header(), mpegts_push_data(), mxf_read_generic_descriptor(), mxg_update_cache(), new_pes_packet(), noise(), oggvorbis_encode_init(), oma_read_header(), parse_fmtp_config(), parse_packed_headers(), qdm2_parse_config(), qt_rtp_parse_packet(), rdt_parse_b64buf(), read_header(), read_kuki_chunk(), rl2_read_header(), rm_read_audio_stream_info(), rm_read_extradata(), sdp_parse_fmtp_config_h264(), spdif_write_packet(), speex_header(), submit_packet(), svq3_decode_frame(), svq3_parse_packet(), text2movsub(), theora_header(), tiff_unpack_strip(), tqi_decode_frame(), transcode(), tta_read_header(), vc1_decode_frame(), vc1_decode_init(), vc1_extract_headers(), vfw_read_header(), video_decode_example(), vmd_read_header(), wsvqa_read_header(), wv_get_value_float(), xwma_read_header(), and yop_read_header().

#define FF_LEVEL_UNKNOWN -99

Definition at line 2107 of file avcodec.h.

Referenced by encode_init(), and mpeg4_encode_visual_object_header().

#define FF_LOSS_ALPHA 0x0008

loss of alpha bits

Definition at line 3248 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 3250 of file avcodec.h.

Referenced by avcodec_get_pix_fmt_loss().

#define FF_LOSS_COLORQUANT 0x0010

loss due to color quantization

Definition at line 3249 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 3247 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 3246 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 3245 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 556 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 1856 of file avcodec.h.

Referenced by encode_thread(), and parse_ffconfig().

#define FF_MB_DECISION_RD 2

rate distortion

Definition at line 1857 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 1855 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 439 of file avcodec.h.

Referenced by avcodec_decode_audio3(), avcodec_encode_audio(), avcodec_encode_video(), and do_audio_out().

#define FF_P_TYPE AV_PICTURE_TYPE_P

Predicted.

Definition at line 879 of file avcodec.h.

Referenced by encode_frame(), and flashsv2_encode_frame().

#define FF_PRED_LEFT 0

Definition at line 1581 of file avcodec.h.

#define FF_PRED_MEDIAN 2

Definition at line 1583 of file avcodec.h.

#define FF_PRED_PLANE 1

Definition at line 1582 of file avcodec.h.

#define FF_PROFILE_AAC_LOW 1

Definition at line 2062 of file avcodec.h.

Referenced by aac_encode_init(), aacPlus_encode_init(), and Faac_encode_init().

#define FF_PROFILE_AAC_LTP 3

Definition at line 2064 of file avcodec.h.

Referenced by Faac_encode_init().

#define FF_PROFILE_AAC_MAIN 0

Definition at line 2061 of file avcodec.h.

Referenced by Faac_encode_init().

#define FF_PROFILE_AAC_SSR 2

Definition at line 2063 of file avcodec.h.

Referenced by Faac_encode_init().

#define FF_PROFILE_DTS 20

Definition at line 2066 of file avcodec.h.

Referenced by dca_decode_frame().

#define FF_PROFILE_DTS_96_24 40

Definition at line 2068 of file avcodec.h.

Referenced by dca_decode_frame().

#define FF_PROFILE_DTS_ES 30

Definition at line 2067 of file avcodec.h.

Referenced by dca_decode_frame().

#define FF_PROFILE_DTS_HD_HRA 50

Definition at line 2069 of file avcodec.h.

Referenced by dca_exss_parse_asset_header().

#define FF_PROFILE_DTS_HD_MA 60

Definition at line 2070 of file avcodec.h.

Referenced by dca_exss_parse_asset_header().

#define FF_PROFILE_H264_BASELINE 66

Definition at line 2082 of file avcodec.h.

Referenced by ff_h264_get_profile().

#define FF_PROFILE_H264_CAVLC_444 44

Definition at line 2094 of file avcodec.h.

#define FF_PROFILE_H264_CONSTRAINED (1<<9)

Definition at line 2079 of file avcodec.h.

Referenced by ff_h264_get_profile().

#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED)

Definition at line 2083 of file avcodec.h.

#define FF_PROFILE_H264_EXTENDED 88

Definition at line 2085 of file avcodec.h.

#define FF_PROFILE_H264_HIGH 100

Definition at line 2086 of file avcodec.h.

#define FF_PROFILE_H264_HIGH_10 110

Definition at line 2087 of file avcodec.h.

Referenced by ff_h264_get_profile().

#define FF_PROFILE_H264_HIGH_10_INTRA (110|FF_PROFILE_H264_INTRA)

Definition at line 2088 of file avcodec.h.

#define FF_PROFILE_H264_HIGH_422 122

Definition at line 2089 of file avcodec.h.

Referenced by ff_h264_get_profile().

#define FF_PROFILE_H264_HIGH_422_INTRA (122|FF_PROFILE_H264_INTRA)

Definition at line 2090 of file avcodec.h.

#define FF_PROFILE_H264_HIGH_444 144

Definition at line 2091 of file avcodec.h.

#define FF_PROFILE_H264_HIGH_444_INTRA (244|FF_PROFILE_H264_INTRA)

Definition at line 2093 of file avcodec.h.

#define FF_PROFILE_H264_HIGH_444_PREDICTIVE 244

Definition at line 2092 of file avcodec.h.

Referenced by ff_h264_get_profile().

#define FF_PROFILE_H264_INTRA (1<<11)

Definition at line 2080 of file avcodec.h.

Referenced by ff_h264_get_profile().

#define FF_PROFILE_H264_MAIN 77

Definition at line 2084 of file avcodec.h.

#define FF_PROFILE_MPEG2_422 0

Definition at line 2072 of file avcodec.h.

#define FF_PROFILE_MPEG2_HIGH 1

Definition at line 2073 of file avcodec.h.

#define FF_PROFILE_MPEG2_MAIN 4

Definition at line 2076 of file avcodec.h.

#define FF_PROFILE_MPEG2_SIMPLE 5

Definition at line 2077 of file avcodec.h.

#define FF_PROFILE_MPEG2_SNR_SCALABLE 3

Definition at line 2075 of file avcodec.h.

#define FF_PROFILE_MPEG2_SS 2

Definition at line 2074 of file avcodec.h.

#define FF_PROFILE_RESERVED -100

Definition at line 2059 of file avcodec.h.

#define FF_PROFILE_UNKNOWN -99

Definition at line 2058 of file avcodec.h.

Referenced by aac_encode_init(), aacPlus_encode_init(), av_get_profile_name(), encode_init(), Faac_encode_init(), mpeg4_encode_visual_object_header(), and vp8_init().

#define FF_PROFILE_VC1_ADVANCED 3

Definition at line 2099 of file avcodec.h.

#define FF_PROFILE_VC1_COMPLEX 2

Definition at line 2098 of file avcodec.h.

#define FF_PROFILE_VC1_MAIN 1

Definition at line 2097 of file avcodec.h.

#define FF_PROFILE_VC1_SIMPLE 0

Definition at line 2096 of file avcodec.h.

#define FF_QSCALE_TYPE_H264 2

Definition at line 868 of file avcodec.h.

Referenced by decode_postinit().

#define FF_QSCALE_TYPE_MPEG1 0

Definition at line 866 of file avcodec.h.

#define FF_QSCALE_TYPE_MPEG2 1

Definition at line 867 of file avcodec.h.

Referenced by slice_end().

#define FF_QSCALE_TYPE_VP56 3

Definition at line 869 of file avcodec.h.

Referenced by ff_vp56_decode_frame().

#define FF_RC_STRATEGY_XVID 1

Definition at line 1174 of file avcodec.h.

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

#define FF_S_TYPE AV_PICTURE_TYPE_S

S(GMC)-VOP MPEG4.

Definition at line 881 of file avcodec.h.

#define FF_SI_TYPE AV_PICTURE_TYPE_SI

Switching Intra.

Definition at line 882 of file avcodec.h.

#define FF_SP_TYPE AV_PICTURE_TYPE_SP

Switching Predicted.

Definition at line 883 of file avcodec.h.

#define FF_THREAD_FRAME 1

#define FF_THREAD_SLICE 2

Definition at line 2671 of file avcodec.h.

Referenced by avcodec_thread_execute(), decode_chunks(), decode_nal_units(), decode_slice_header(), ff_h264_frame_start(), ff_thread_init(), MPV_common_end(), MPV_common_init(), and validate_thread_parameters().

#define MB_TYPE_16x16 0x0008

#define MB_TYPE_16x8 0x0010

Definition at line 702 of file avcodec.h.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_mpeg4_set_direct_mv(), fill_decode_caches(), get_dct8x8_allowed(), mpeg4_decode_mb(), mpeg_decode_mb(), pred_spatial_direct_motion(), and pred_temp_direct_motion().

#define MB_TYPE_8x16 0x0020

Definition at line 703 of file avcodec.h.

Referenced by filter_mb_dir(), get_dct8x8_allowed(), pred_spatial_direct_motion(), and pred_temp_direct_motion().

#define MB_TYPE_8x8 0x0040

Definition at line 704 of file avcodec.h.

Referenced by ff_h263_decode_mb(), ff_h263_update_motion_val(), ff_mpeg4_set_direct_mv(), fill_decode_caches(), get_dct8x8_allowed(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), pred_spatial_direct_motion(), pred_temp_direct_motion(), and preview_obmc().

#define MB_TYPE_ACPRED 0x0200

Definition at line 707 of file avcodec.h.

Referenced by ff_h263_decode_mb(), mpeg4_decode_mb(), and mpeg4_decode_partition_b().

#define MB_TYPE_CBP 0x00020000

Definition at line 718 of file avcodec.h.

Referenced by mpeg_decode_mb().

#define MB_TYPE_DIRECT2 0x0100

Definition at line 706 of file avcodec.h.

Referenced by decode_cabac_mb_ref(), decode_mb_skip(), ff_mpeg4_set_direct_mv(), fill_decode_caches(), get_dct8x8_allowed(), mpeg4_decode_mb(), pred_spatial_direct_motion(), and pred_temp_direct_motion().

#define MB_TYPE_GMC 0x0400

Definition at line 708 of file avcodec.h.

Referenced by mpeg4_decode_mb(), and mpeg4_decode_partition_a().

#define MB_TYPE_INTERLACED 0x0080

Definition at line 705 of file avcodec.h.

Referenced by decode_mb_skip(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_mpeg4_set_direct_mv(), mpeg4_decode_mb(), mpeg_decode_mb(), and pred_spatial_direct_motion().

#define MB_TYPE_INTRA16x16 0x0002

Definition at line 699 of file avcodec.h.

Referenced by decode_cabac_intra_mb_type(), rv34_decode_mb_header(), and svq3_decode_mb().

#define MB_TYPE_INTRA4x4 0x0001

Definition at line 698 of file avcodec.h.

Referenced by ff_er_frame_end(), and svq3_decode_mb().

#define MB_TYPE_INTRA_PCM 0x0004

Definition at line 700 of file avcodec.h.

Referenced by decode_cabac_intra_mb_type().

#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)

Definition at line 714 of file avcodec.h.

Referenced by ff_er_frame_end(), ff_h263_decode_mb(), ff_h263_update_motion_val(), h261_decode_mb(), h261_decode_mb_skipped(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), mpeg_decode_mb(), msmpeg4v34_decode_mb(), parse_mb_skip(), pred_spatial_direct_motion(), preview_obmc(), and rv34_pred_mv_b().

#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)

Definition at line 716 of file avcodec.h.

Referenced by decode_mb_skip(), ff_mpeg4_set_direct_mv(), mpeg4_decode_mb(), mpeg_decode_mb(), pred_spatial_direct_motion(), and pred_temp_direct_motion().

#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)

Definition at line 715 of file avcodec.h.

Referenced by rv34_pred_mv_b().

#define MB_TYPE_P0L0 0x1000

Definition at line 710 of file avcodec.h.

Referenced by decode_mb_skip(), and pred_temp_direct_motion().

#define MB_TYPE_P0L1 0x4000

Definition at line 712 of file avcodec.h.

Referenced by pred_temp_direct_motion().

#define MB_TYPE_P1L0 0x2000

Definition at line 711 of file avcodec.h.

Referenced by decode_mb_skip(), and pred_spatial_direct_motion().

#define MB_TYPE_P1L1 0x8000

Definition at line 713 of file avcodec.h.

Referenced by pred_spatial_direct_motion().

#define MB_TYPE_QUANT 0x00010000

Definition at line 717 of file avcodec.h.

Referenced by mpeg_decode_mb().

#define MB_TYPE_SKIP 0x0800

Definition at line 709 of file avcodec.h.

Referenced by decode_mb_skip(), ff_h263_decode_mb(), ff_h264_decode_mb_cabac(), fill_decode_caches(), h261_decode_mb_skipped(), mpeg4_decode_mb(), 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 3814 of file avcodec.h.

Referenced by av_read_frame_internal(), avformat_find_stream_info(), cavsvideo_parse(), dca_parse(), dirac_parse(), dnxhd_parse(), flac_parse(), h261_parse(), h263_parse(), h264_parse(), init(), jpeg_parse(), latm_parse(), mpeg4video_parse(), mpegvideo_parse(), and vc1_parse().

#define PARSER_FLAG_FETCHED_OFFSET 0x0004

Set if the parser has a valid file offset.

Definition at line 3817 of file avcodec.h.

Referenced by av_parser_parse2().

#define PARSER_FLAG_ONCE 0x0002

Definition at line 3815 of file avcodec.h.

Referenced by av_read_frame_internal(), and h264_parse().

#define SAMPLE_FMT_DBL AV_SAMPLE_FMT_DBL

Definition at line 371 of file avcodec.h.

#define SAMPLE_FMT_FLT AV_SAMPLE_FMT_FLT

Definition at line 370 of file avcodec.h.

Referenced by libspeex_encode_frame(), and libspeex_encode_init().

#define SAMPLE_FMT_NB AV_SAMPLE_FMT_NB

Definition at line 372 of file avcodec.h.

#define SAMPLE_FMT_NONE AV_SAMPLE_FMT_NONE

Definition at line 366 of file avcodec.h.

#define SAMPLE_FMT_S16 AV_SAMPLE_FMT_S16

Definition at line 368 of file avcodec.h.

Referenced by libspeex_encode_init(), and s302m_parse_frame_header().

#define SAMPLE_FMT_S32 AV_SAMPLE_FMT_S32

Definition at line 369 of file avcodec.h.

Referenced by s302m_parse_frame_header().

#define SAMPLE_FMT_U8 AV_SAMPLE_FMT_U8

Definition at line 367 of file avcodec.h.

#define SampleFormat AVSampleFormat

Definition at line 364 of file avcodec.h.

#define SLICE_FLAG_ALLOW_FIELD 0x0002

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

Definition at line 1839 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 1840 of file avcodec.h.

#define SLICE_FLAG_CODED_ORDER 0x0001

draw_horiz_band() is called in coded order instead of display

Definition at line 1838 of file avcodec.h.

Referenced by ff_draw_horiz_band().

#define X264_PART_B8X8 0x100

Definition at line 2298 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_I4X4 0x001

Definition at line 2294 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_I8X8 0x002

Definition at line 2295 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_P4X4 0x020

Definition at line 2297 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_P8X8 0x010

Definition at line 2296 of file avcodec.h.

Referenced by X264_init().

Typedef Documentation

typedef struct AVPaletteControl attribute_deprecated

typedef struct ReSampleContext ReSampleContext

Definition at line 3064 of file avcodec.h.

Enumeration Type Documentation

enum AVAudioServiceType

Enumerator:

AV_AUDIO_SERVICE_TYPE_MAIN
AV_AUDIO_SERVICE_TYPE_EFFECTS
AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED
AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED
AV_AUDIO_SERVICE_TYPE_DIALOGUE
AV_AUDIO_SERVICE_TYPE_COMMENTARY
AV_AUDIO_SERVICE_TYPE_EMERGENCY
AV_AUDIO_SERVICE_TYPE_VOICE_OVER
AV_AUDIO_SERVICE_TYPE_KARAOKE
AV_AUDIO_SERVICE_TYPE_NB	Not part of ABI.

Definition at line 536 of file avcodec.h.

enum AVChromaLocation

X X 3 4 X X are luma samples, 1 2 1-6 are possible chroma positions X X 5 6 X 0 is undefined/unknown position.

Enumerator:

AVCHROMA_LOC_UNSPECIFIED
AVCHROMA_LOC_LEFT	mpeg2/4, h264 default
AVCHROMA_LOC_CENTER	mpeg1, jpeg, h263
AVCHROMA_LOC_TOPLEFT	DV.
AVCHROMA_LOC_TOP
AVCHROMA_LOC_BOTTOMLEFT
AVCHROMA_LOC_BOTTOM
AVCHROMA_LOC_NB	Not part of ABI.

Definition at line 511 of file avcodec.h.

enum AVColorPrimaries

Enumerator:

AVCOL_PRI_BT709	also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
AVCOL_PRI_UNSPECIFIED
AVCOL_PRI_BT470M
AVCOL_PRI_BT470BG	also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
AVCOL_PRI_SMPTE170M	also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
AVCOL_PRI_SMPTE240M	functionally identical to above
AVCOL_PRI_FILM
AVCOL_PRI_NB	Not part of ABI.

Definition at line 469 of file avcodec.h.

enum AVColorRange

Enumerator:

AVCOL_RANGE_UNSPECIFIED
AVCOL_RANGE_MPEG	the normal 219*2^(n-8) "MPEG" YUV ranges
AVCOL_RANGE_JPEG	the normal 2^n-1 "JPEG" YUV ranges
AVCOL_RANGE_NB	Not part of ABI.

Definition at line 499 of file avcodec.h.

enum AVColorSpace

Enumerator:

AVCOL_SPC_RGB
AVCOL_SPC_BT709	also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
AVCOL_SPC_UNSPECIFIED
AVCOL_SPC_FCC
AVCOL_SPC_BT470BG	also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
AVCOL_SPC_SMPTE170M	also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
AVCOL_SPC_SMPTE240M
AVCOL_SPC_NB	Not part of ABI.

Definition at line 488 of file avcodec.h.

enum AVColorTransferCharacteristic

Enumerator:

AVCOL_TRC_BT709	also ITU-R BT1361
AVCOL_TRC_UNSPECIFIED
AVCOL_TRC_GAMMA22	also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
AVCOL_TRC_GAMMA28	also ITU-R BT470BG
AVCOL_TRC_NB	Not part of ABI.

Definition at line 480 of file avcodec.h.

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 458 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 4087 of file avcodec.h.

enum AVLPCType

LPC analysis type.

Enumerator:

AV_LPC_TYPE_DEFAULT	use the codec default LPC type
AV_LPC_TYPE_NONE	do not use LPC prediction or use all zero coefficients
AV_LPC_TYPE_FIXED	fixed LPC coefficients
AV_LPC_TYPE_LEVINSON	Levinson-Durbin recursion.
AV_LPC_TYPE_CHOLESKY	Cholesky factorization.
AV_LPC_TYPE_NB	Not part of ABI.

Definition at line 526 of file avcodec.h.

enum AVPacketSideDataType

Enumerator:

AV_PKT_DATA_PALETTE

Definition at line 892 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 2923 of file avcodec.h.

enum CodecID

Identify the syntax and semantics of the bitstream.

The principle is roughly: Two decoders with the same ID can decode the same streams. Two encoders with the same ID can encode compatible streams. There may be slight deviations from the principle due to implementation details.

If you add a codec ID to this list, add it so that 1. no value of a existing codec ID changes (that would break ABI), 2. it is as close as possible to similar codecs.

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_PNG
CODEC_ID_PPM
CODEC_ID_PBM
CODEC_ID_PGM
CODEC_ID_PGMYUV
CODEC_ID_PAM
CODEC_ID_FFVHUFF
CODEC_ID_RV30
CODEC_ID_RV40
CODEC_ID_VC1
CODEC_ID_WMV3
CODEC_ID_LOCO
CODEC_ID_WNV1
CODEC_ID_AASC
CODEC_ID_INDEO2
CODEC_ID_FRAPS
CODEC_ID_TRUEMOTION2
CODEC_ID_BMP
CODEC_ID_CSCD
CODEC_ID_MMVIDEO
CODEC_ID_ZMBV
CODEC_ID_AVS
CODEC_ID_SMACKVIDEO
CODEC_ID_NUV
CODEC_ID_KMVC
CODEC_ID_FLASHSV
CODEC_ID_CAVS
CODEC_ID_JPEG2000
CODEC_ID_VMNC
CODEC_ID_VP5
CODEC_ID_VP6
CODEC_ID_VP6F
CODEC_ID_TARGA
CODEC_ID_DSICINVIDEO
CODEC_ID_TIERTEXSEQVIDEO
CODEC_ID_TIFF
CODEC_ID_GIF
CODEC_ID_FFH264
CODEC_ID_DXA
CODEC_ID_DNXHD
CODEC_ID_THP
CODEC_ID_SGI
CODEC_ID_C93
CODEC_ID_BETHSOFTVID
CODEC_ID_PTX
CODEC_ID_TXD
CODEC_ID_VP6A
CODEC_ID_AMV
CODEC_ID_VB
CODEC_ID_PCX
CODEC_ID_SUNRAST
CODEC_ID_INDEO4
CODEC_ID_INDEO5
CODEC_ID_MIMIC
CODEC_ID_RL2
CODEC_ID_8SVX_EXP
CODEC_ID_8SVX_FIB
CODEC_ID_ESCAPE124
CODEC_ID_DIRAC
CODEC_ID_BFI
CODEC_ID_CMV
CODEC_ID_MOTIONPIXELS
CODEC_ID_TGV
CODEC_ID_TGQ
CODEC_ID_TQI
CODEC_ID_AURA
CODEC_ID_AURA2
CODEC_ID_V210X
CODEC_ID_TMV
CODEC_ID_V210
CODEC_ID_DPX
CODEC_ID_MAD
CODEC_ID_FRWU
CODEC_ID_FLASHSV2
CODEC_ID_CDGRAPHICS
CODEC_ID_R210
CODEC_ID_ANM
CODEC_ID_BINKVIDEO
CODEC_ID_IFF_ILBM
CODEC_ID_IFF_BYTERUN1
CODEC_ID_KGV1
CODEC_ID_YOP
CODEC_ID_VP8
CODEC_ID_PICTOR
CODEC_ID_ANSI
CODEC_ID_A64_MULTI
CODEC_ID_A64_MULTI5
CODEC_ID_R10K
CODEC_ID_MXPEG
CODEC_ID_LAGARITH
CODEC_ID_PRORES
CODEC_ID_JV
CODEC_ID_DFA
CODEC_ID_8SVX_RAW
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_PCM_BLURAY
CODEC_ID_PCM_LXF
CODEC_ID_S302M
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_ADPCM_G722
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_TWINVQ
CODEC_ID_TRUEHD
CODEC_ID_MP4ALS
CODEC_ID_ATRAC1
CODEC_ID_BINKAUDIO_RDFT
CODEC_ID_BINKAUDIO_DCT
CODEC_ID_AAC_LATM
CODEC_ID_QDMC
CODEC_ID_CELT
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_HDMV_PGS_SUBTITLE
CODEC_ID_DVB_TELETEXT
CODEC_ID_SRT
CODEC_ID_MICRODVD
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)
CODEC_ID_FFMETADATA	Dummy codec for streams containing only metadata information.

Definition at line 49 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 445 of file avcodec.h.

Function Documentation

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

Definition at line 280 of file resample.c.

Referenced by do_audio_out().

void audio_resample_close ( ReSampleContext * s )

Free resample context.

Parameters:

s

a non-NULL pointer to a resample context previously created with av_audio_resample_init()

Definition at line 416 of file resample.c.

Referenced by do_audio_out().

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

Initialize 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 frequency
	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 198 of file resample.c.

Referenced by do_audio_out().

void av_bitstream_filter_close ( AVBitStreamFilterContext * bsf )

Definition at line 50 of file bitstream_filter.c.

Referenced by uninit().

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 decode(), init(), and write_frame().

AVBitStreamFilterContext* av_bitstream_filter_init ( const char * name )

Definition at line 35 of file bitstream_filter.c.

Referenced by init(), and opt_bsf().

AVBitStreamFilter* av_bitstream_filter_next ( AVBitStreamFilter * f )

Definition at line 25 of file bitstream_filter.c.

Referenced by opt_bsfs().

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 83 of file utils.c.

Referenced by opt_codecs(), opt_default(), opt_find(), and opt_help().

void av_destruct_packet ( AVPacket * pkt )

Default packet destructor.

Definition at line 33 of file avpacket.c.

Referenced by a64_write_trailer(), av_dup_packet(), av_new_packet(), av_packet_merge_side_data(), dshow_read_close(), matroska_merge_packets(), mkv_write_trailer(), new_pes_packet(), output_packet(), prepare_packet(), qt_rtp_parse_packet(), svq3_parse_packet(), vfw_read_close(), write_frame(), and xiph_handle_packet().

attribute_deprecated void av_destruct_packet_nofree ( AVPacket * pkt )

Deprecated:: use NULL instead

Definition at line 26 of file avpacket.c.

Referenced by av_dup_packet().

int av_dup_packet ( AVPacket * pkt )

Warning:: This is a hack - the packet memory allocation stuff is broken. The packet is allocated if it was not really allocated.

Definition at line 121 of file avpacket.c.

Referenced by av_packet_split_side_data(), av_read_frame(), avformat_find_stream_info(), ff_interleave_add_packet(), and packet_queue_put().

void av_fast_malloc	(	void *	ptr,
		unsigned int *	size,
		size_t	min_size
	)

Allocate a buffer, reusing the given one if large enough.

Contrary to av_fast_realloc the current buffer contents might not be preserved and on error the old buffer is freed, thus no special handling to avoid memleaks is necessary.

Parameters:

	ptr	pointer to pointer to already allocated buffer, overwritten with pointer to new buffer
	size	size of the buffer *ptr points to
	min_size	minimum size of ptr buffer after returning, ptr will be NULL and *size 0 if an error occurred.

Definition at line 68 of file utils.c.

Referenced by codec_reinit(), decode_frame(), decode_i_frame(), decode_p_frame(), do_audio_out(), ff_h263_decode_frame(), ff_h264_decode_nal(), ff_id3v2_parse(), ff_mpeg_update_thread_context(), ljpeg_decode_rgb_scan(), mimic_decode_frame(), mp_decode_frame(), parse_picture_segment(), pmp_packet(), spdif_header_dts4(), spdif_write_packet(), submit_packet(), svq3_decode_frame(), tqi_decode_frame(), truemotion1_decode_header(), and truemotion1_decode_init().

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

Reallocate the given block if it is not large enough, otherwise do nothing.

See also:: av_realloc

Definition at line 52 of file utils.c.

Referenced by avcodec_default_get_buffer(), commit_slices(), decode_frame(), dirac_combine_frame(), ff_add_index_entry(), ff_combine_frame(), ff_mms_asf_header_parser(), ff_vaapi_alloc_slice(), ff_vdpau_add_data_chunk(), flac_fifo_read_wrap(), get_stats(), mkv_copy_packet(), mxg_update_cache(), read_frame(), read_header(), shorten_decode_frame(), and spdif_header_eac3().

void av_free_packet ( AVPacket * pkt )

Free a packet.

Parameters:

pkt

packet to free

Definition at line 151 of file avpacket.c.

Referenced by amr_read_packet(), applehttp_read_seek(), asf_read_pts(), asf_reset_header(), asfrtp_parse_packet(), audio_decode_frame(), audio_read_packet(), av_estimate_timings_from_pts(), av_get_packet(), av_interleaved_write_frame(), av_packet_merge_side_data(), av_read_frame_internal(), av_seek_frame_generic(), av_write_trailer(), avformat_free_context(), avi_read_close(), avs_read_video_packet(), cin_read_packet(), dfa_read_packet(), dxa_read_packet(), extract_mpeg4_header(), ff_asf_parse_packet(), ff_free_parser_state(), ff_raw_read_partial_packet(), ff_read_frame_flush(), ff_rm_free_rmstream(), ffm_read_packet(), flic_read_packet(), flush_packet_queue(), fourxm_read_packet(), free_packet_list(), free_pkt_fifo(), free_variant_list(), http_prepare_data(), ingenient_read_packet(), load_ipmovie_packet(), lxf_read_packet(), main(), matroska_clear_queue(), mmf_read_packet(), movie_get_frame(), mpc_read_packet(), mpc_read_seek(), mpegts_raw_read_packet(), mxf_interleave_get_packet(), nc_read_packet(), nsv_read_close(), nuv_packet(), output_packet(), packet_queue_flush(), qt_rtp_parse_packet(), read_packet(), read_thread(), rl2_read_packet(), rm_assemble_video_frame(), rm_read_packet(), rpl_read_packet(), sap_fetch_packet(), search_hi_lo_keyframes(), seek_subtitle(), spdif_read_packet(), str_read_close(), str_read_packet(), subtitle_thread(), thp_read_packet(), vid_read_packet(), video_thread(), vmd_read_packet(), vqf_read_packet(), wc3_read_close(), write_frame(), wsvqa_read_packet(), wv_read_packet(), wv_read_seek(), xiph_handle_packet(), yop_read_close(), yop_read_packet(), and yop_read_seek().

int av_get_bits_per_sample ( enum CodecID codec_id )

Return 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 1196 of file utils.c.

Referenced by aiff_write_header(), au_read_header(), au_read_packet(), avformat_find_stream_info(), avformat_write_header(), do_audio_out(), ff_alsa_open(), ff_audio_interleave_init(), ff_mov_read_stsd_entries(), ff_raw_read_header(), get_aiff_header(), get_audio_frame_size(), get_bit_rate(), gxf_packet(), mkv_write_tracks(), mov_get_codec_tag(), mov_write_audio_tag(), mov_write_header(), mxf_write_generic_sound_common(), pcm_decode_frame(), pcm_decode_init(), pcm_encode_frame(), pcm_encode_init(), pcm_read_seek(), raw_read_packet(), rso_read_header(), rso_read_packet(), show_stream(), and voc_get_packet().

attribute_deprecated int av_get_bits_per_sample_format ( enum AVSampleFormat sample_fmt )

Deprecated:: Use av_get_bytes_per_sample() instead.

Definition at line 1243 of file utils.c.

size_t av_get_codec_tag_string	(	char *	buf,
		size_t	buf_size,
		unsigned int	codec_tag
	)

Put a string representing the codec tag codec_tag in buf.

Parameters:

buf_size

size in bytes of buf

Returns:: the length of the string that would have been generated if enough space had been available, excluding the trailing null

Definition at line 992 of file utils.c.

Referenced by avcodec_string(), avformat_write_header(), and show_stream().

attribute_deprecated char av_get_pict_type_char ( int pict_type )

Return 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.

Deprecated:: Use av_get_picture_type_char() instead.

Definition at line 1191 of file utils.c.

const char* av_get_profile_name	(	const AVCodec *	codec,
		int	profile
	)

Return a name for the specified profile, if available.

Parameters:

	codec	the codec that is searched for the given profile
	profile	the profile value for which a name is requested

Returns:: A name for the profile if found, NULL otherwise.

Definition at line 1123 of file utils.c.

Referenced by avcodec_string().

int av_grow_packet	(	AVPacket *	pkt,
		int	grow_by
	)

Increase packet size, correctly zeroing padding.

Parameters:

	pkt	packet
	grow_by	number of bytes by which to increase the size of the packet

Definition at line 86 of file avpacket.c.

Referenced by av_append_packet().

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 1310 of file utils.c.

Referenced by ff_find_hwaccel().

void av_init_packet ( AVPacket * pkt )

Initialize optional fields of a packet with default values.

Parameters:

pkt

packet

Definition at line 46 of file avpacket.c.

Referenced by audio_decode_example(), av_interleave_packet_per_dts(), av_new_packet(), av_read_frame_internal(), av_read_packet(), avi_write_packet(), dc1394_read_header(), do_audio_out(), do_subtitle_out(), do_video_out(), dv_extract_audio_info(), dv_produce_packet(), ff_mov_add_hinted_packet(), ff_store_parser_state(), main(), mkv_write_header(), mxf_interleave_get_packet(), new_pes_packet(), output_packet(), prepare_packet(), qt_rtp_parse_packet(), read_thread(), reset_packet(), show_packets(), sp5x_decode_frame(), svq3_parse_packet(), v4l2_read_packet(), video_decode_example(), wc3_read_header(), write_audio_frame(), write_video_frame(), x11grab_read_packet(), and xiph_handle_packet().

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 1327 of file utils.c.

void av_log_ask_for_sample	(	void *	avc,
		const char *	msg,
			...
	)

Log a generic warning message asking for a sample.

This function is intended to be used internally by FFmpeg (libavcodec, libavformat, etc.) only, and would normally not be used by applications.

Parameters:

`[in]`	avc	a pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct
`[in]`	msg	string containing an optional message, or NULL if no message

Definition at line 1284 of file utils.c.

Referenced by au_read_header(), av_log_missing_feature(), cinaudio_decode_init(), cook_decode_init(), dca_exss_parse_header(), decode_bytes(), decode_channel_transform(), decode_frame(), decode_init(), decode_scalefactors(), decode_subframe(), determine_bitrate(), execute_code(), ff_mov_read_chan(), ff_parse_mpeg2_descriptor(), imc_decode_init(), oma_read_header(), ptx_decode_frame(), read_header(), read_major_sync(), rso_read_header(), save_bits(), spdif_header_dts(), spdif_header_truehd(), spdif_read_packet(), truemotion1_decode_header(), truespeech_decode_init(), tta_decode_init(), vc1_parse_sprites(), vc1_sprite_parse_transform(), ws_snd_decode_init(), and xwma_read_header().

void av_log_missing_feature	(	void *	avc,
		const char *	feature,
		int	want_sample
	)

Logs a generic warning message about a missing feature.

This function is intended to be used internally by FFmpeg (libavcodec, libavformat, etc.) only, and would normally not be used by applications.

Parameters:

`[in]`	avc	a pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct
`[in]`	feature	string containing the name of the missing feature
`[in]`	want_sample	indicates if samples are wanted which exhibit this feature. If want_sample is non-zero, additional verbage will be added to the log message which tells the user how to report samples to the development mailing list.

Definition at line 1274 of file utils.c.

Referenced by aac_adtstoasc_filter(), amrnb_decode_frame(), amrwb_decode_frame(), avcodec_default_get_buffer(), decode_audio_block(), decode_frame_header(), decode_ga_specific_config(), decode_ics(), decode_slice_header(), decode_subframe(), ff_eac3_parse_header(), ff_h263_decode_frame(), latm_decode_audio_specific_config(), mpc8_decode_init(), parse_adts_frame_header(), parse_fmtp(), qt_rtp_parse_packet(), read_sbr_extension(), read_stream_mux_config(), spdif_get_offset_and_codec(), spdif_read_packet(), synth_superframe(), and vc1_parse_frame_header_adv().

int av_new_packet	(	AVPacket *	pkt,
		int	size
	)

Allocate the payload of a packet and initialize its fields with default values.

Parameters:

	pkt	packet
	size	wanted payload size

Returns:: 0 if OK, AVERROR_xxx otherwise

Definition at line 60 of file avpacket.c.

Referenced by a64_write_packet(), aac_parse_packet(), amr_handle_packet(), amr_read_packet(), ape_read_packet(), audio_read_packet(), av_get_packet(), av_grow_packet(), avisynth_read_packet(), avs_read_video_packet(), callback(), cin_read_packet(), decode_frame(), dxa_read_packet(), fbdev_read_packet(), ff_asf_parse_packet(), ff_interleave_new_audio_packet(), ff_raw_read_partial_packet(), ff_rm_retrieve_cache(), ffm_read_packet(), film_read_packet(), flic_read_packet(), fourxm_read_packet(), grab_read_packet(), h263_handle_packet(), h264_handle_packet(), iff_read_packet(), ingenient_read_packet(), latm_parse_packet(), load_ipmovie_packet(), lxf_read_packet(), matroska_parse_block(), microdvd_read_packet(), mmf_read_packet(), mpc_read_packet(), mpegts_raw_read_packet(), nut_read_packet(), nuv_packet(), ogg_read_packet(), qdm2_restore_block(), qt_rtp_parse_packet(), read_frame(), read_packet(), return_stored_frame(), rm_assemble_video_frame(), rm_read_audio_stream_info(), roq_read_packet(), rtp_parse_packet_internal(), seq_read_packet(), siff_read_packet(), smacker_read_packet(), spdif_read_packet(), srt_read_packet(), store_packet(), str_read_packet(), supply_new_packets(), swf_read_packet(), v4l2_read_packet(), videostream_cb(), vmd_read_packet(), vqf_read_packet(), wsvqa_read_packet(), wv_read_packet(), xiph_handle_packet(), and yop_read_packet().

uint8_t* av_packet_get_side_data	(	AVPacket *	pkt,
		enum AVPacketSideDataType	type,
		int *	size
	)

Get side information from packet.

Parameters:

	pkt	packet
	type	desired side information type
	size	pointer for side information size to store (optional)

Returns:: pointer to data if present or NULL otherwise

Definition at line 185 of file avpacket.c.

Referenced by cinepak_decode_frame(), decode_frame(), idcin_decode_frame(), ipvideo_decode_frame(), msrle_decode_frame(), msvideo1_decode_frame(), qtrle_decode_frame(), raw_decode(), and smc_decode_frame().

int av_packet_merge_side_data ( AVPacket * pkt )

Definition at line 202 of file avpacket.c.

Referenced by av_read_packet().

uint8_t* av_packet_new_side_data	(	AVPacket *	pkt,
		enum AVPacketSideDataType	type,
		int	size
	)

Allocate new information of a packet.

Parameters:

	pkt	packet
	type	side information type
	size	side information size

Returns:: pointer to fresh allocated data or NULL otherwise

Definition at line 161 of file avpacket.c.

Referenced by ff_asf_parse_packet(), idcin_read_packet(), load_ipmovie_packet(), and mov_read_packet().

int av_packet_split_side_data ( AVPacket * pkt )

Definition at line 236 of file avpacket.c.

Referenced by avcodec_decode_video2().

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 171 of file parser.c.

Referenced by output_packet().

void av_parser_close ( AVCodecParserContext * s )

Definition at line 204 of file parser.c.

Referenced by av_bitstream_filter_close(), av_estimate_timings_from_pts(), avformat_free_context(), ff_free_parser_state(), ff_read_frame_flush(), and uninit().

AVCodecParserContext* av_parser_init ( int codec_id )

Definition at line 38 of file parser.c.

Referenced by av_read_frame_internal(), avformat_find_stream_info(), init(), and remove_extradata().

AVCodecParser* av_parser_next ( AVCodecParser * c )

Definition at line 27 of file parser.c.

int av_parser_parse2	(	AVCodecParserContext *	s,
		AVCodecContext *	avctx,
		uint8_t **	poutbuf,
		int *	poutbuf_size,
		const uint8_t *	buf,
		int	buf_size,
		int64_t	pts,
		int64_t	dts,
		int64_t	pos
	)

Parse a packet.

Parameters:

	s	parser context.
	avctx	codec context.
	poutbuf	set to pointer to parsed buffer or NULL if not yet finished.
	poutbuf_size	set to size of parsed buffer or zero if not yet finished.
	buf	input buffer.
	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.
	pos	input byte position in stream.

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

Example:

   while(in_len){
       len = av_parser_parse2(myparser, AVCodecContext, &data, &size,
                                        in_data, in_len,
                                        pts, dts, pos);
       in_data += len;
       in_len  -= len;

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

Definition at line 108 of file parser.c.

Referenced by av_read_frame_internal(), and decode().

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

Copy image src to dst.

Wraps av_picture_data_copy() above.

Definition at line 677 of file imgconvert.c.

Referenced by avcodec_default_reget_buffer(), copy_frame(), qtrle_encode_frame(), queue_picture(), and roq_decode_frame().

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

Crop image top and left side.

Definition at line 797 of file imgconvert.c.

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

Pad image.

Definition at line 827 of file imgconvert.c.

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 )

Register the hardware accelerator hwaccel.

Definition at line 1301 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
	)

Resample an array of samples using a previously configured context.

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 234 of file resample2.c.

Referenced by audio_resample().

void av_resample_close ( struct AVResampleContext * c )

Definition at line 223 of file resample2.c.

Referenced by audio_resample_close().

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

Compensate 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 228 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]`

Initialize 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 189 of file resample2.c.

Referenced by av_audio_resample_init().

void av_shrink_packet	(	AVPacket *	pkt,
		int	size
	)

Reduce packet size, correctly zeroing padding.

Parameters:

	pkt	packet
	size	new size

Definition at line 79 of file avpacket.c.

Referenced by av_append_packet(), av_get_packet(), cin_read_packet(), ff_asf_parse_packet(), mxf_decrypt_triplet(), mxf_get_d10_aes3_packet(), nuv_packet(), and yop_read_packet().

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

Encode extradata length to a buffer.

Used by xiph codecs.

Parameters:

	s	buffer to write to; must be at least (v/255+1) bytes long
	v	size of extradata in bytes

Returns:: number of bytes written to the buffer.

Definition at line 1254 of file utils.c.

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

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

Modify width and height values so that they will result in a memory buffer that is acceptable for the codec if you do not use any horizontal padding.

May only be used if a codec with CODEC_CAP_DR1 has been opened. If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased according to avcodec_get_edge_width() before.

Definition at line 215 of file utils.c.

void avcodec_align_dimensions2	(	AVCodecContext *	s,
		int *	width,
		int *	height,
		int	linesize_align[4]
	)

Modify width and height values so that they will result in a memory buffer that is acceptable for the codec if you also ensure that all line sizes are a multiple of the respective linesize_align[i].

May only be used if a codec with CODEC_CAP_DR1 has been opened. If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased according to avcodec_get_edge_width() before.

Definition at line 121 of file utils.c.

Referenced by avcodec_align_dimensions(), and avcodec_default_get_buffer().

AVCodecContext* avcodec_alloc_context ( void )

Allocate an AVCodecContext and set 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 554 of file options.c.

Referenced by add_av_stream1(), add_codec(), audio_decode_example(), audio_encode_example(), av_new_stream(), config(), estimate_best_b_count(), ff_mov_init_hinting(), main(), mov_create_chapter_track(), read_ffserver_streams(), vf_open(), video_decode_example(), and video_encode_example().

AVCodecContext* avcodec_alloc_context2 ( enum AVMediaType )

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

Definition at line 540 of file options.c.

Referenced by avcodec_alloc_context(), and init_opts().

AVCodecContext* avcodec_alloc_context3 ( AVCodec * codec )

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

Definition at line 527 of file options.c.

AVFrame* avcodec_alloc_frame ( void )

Allocate an AVFrame and set 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 473 of file utils.c.

Referenced by aac_encode_init(), aacPlus_encode_init(), adx_encode_init(), alac_encode_init(), alloc_picture(), amr_wb_encode_init(), config(), decode_init(), encode_init(), Faac_encode_init(), ff_ac3_encode_init(), flac_encode_init(), g726_init(), libgsm_init(), movie_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(), vorbis_encode_init(), and vp8_init().

int avcodec_close ( AVCodecContext * avctx )

Definition at line 871 of file utils.c.

Referenced by audio_decode_example(), audio_encode_example(), avformat_find_stream_info(), close_audio(), close_connection(), close_video(), estimate_best_b_count(), stream_component_close(), uninit(), video_decode_example(), and video_encode_example().

const char* avcodec_configuration ( void )

Return the libavcodec build-time configuration.

Definition at line 1141 of file utils.c.

int avcodec_copy_context	(	AVCodecContext *	dest,
		const AVCodecContext *	src
	)

Copy the settings of the source AVCodecContext into the destination AVCodecContext.

The resulting destination codec context will be unopened, i.e. you are required to call avcodec_open() before you can use this AVCodecContext to decode/encode video/audio data.

Parameters:

	dest	target codec context, should be initialized with avcodec_alloc_context(), but otherwise uninitialized
	src	source codec context

Returns:: AVERROR() on error (e.g. memory allocation error), 0 on success

Definition at line 558 of file options.c.

Referenced by applehttp_read_header(), ff_rtp_chain_mux_open(), http_receive_data(), read_ffserver_streams(), sap_fetch_packet(), and sap_read_header().

int avcodec_decode_audio3	(	AVCodecContext *	avctx,
		int16_t *	samples,
		int *	frame_size_ptr,
		AVPacket *	avpkt
	)

Decode the audio frame of size avpkt->size from avpkt->data into samples.

Some decoders may support multiple frames in a single AVPacket, such decoders would then just decode the first frame. In this case, avcodec_decode_audio3 has to be called again with an AVPacket that contains the remaining data in order to decode the second frame etc. If no frame could be outputted, frame_size_ptr is zero. Otherwise, it is the decompressed frame size in bytes.

Warning:

You must set frame_size_ptr to the allocated size of the output buffer before calling avcodec_decode_audio3().

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 avpkt->data should be set to 0 to ensure that no overreading happens for damaged MPEG streams.

Note:: You might have to align the input buffer avpkt->data and output buffer samples. The alignment requirements depend on the CPU: On some CPUs it isn't necessary at all, on others it won't work at all if not aligned and on others it will work but it will have an impact on performance.

In practice, avpkt->data should have 4 byte alignment at minimum and samples should be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do).

Parameters:

	avctx	the codec context
`[out]`	samples	the output buffer, sample type in avctx->sample_fmt
`[in,out]`	frame_size_ptr	the output buffer size in bytes
`[in]`	avpkt	The input AVPacket containing the input buffer. You can create such packet with av_init_packet() and by then setting data and size, some decoders might in addition need other fields. All decoders are designed to use the least fields possible though.

Returns:: On error a negative value is returned, otherwise the number of bytes used or zero if no frame data was decompressed (used) from the input AVPacket.

Definition at line 802 of file utils.c.

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

int avcodec_decode_subtitle2	(	AVCodecContext *	avctx,
		AVSubtitle *	sub,
		int *	got_sub_ptr,
		AVPacket *	avpkt
	)

Decode a subtitle message.

Return a negative value on error, otherwise return the number of bytes used. If no subtitle could be decompressed, got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. Note that CODEC_CAP_DR1 is not available for subtitle codecs. This is for simplicity, because the performance difference is expect to be negligible and reusing a get_buffer written for video codecs would probably perform badly due to a potentially very different allocation pattern.

Parameters:

	avctx	the codec context
`[out]`	sub	The AVSubtitle in which the decoded subtitle will be stored, must be freed with avsubtitle_free if *got_sub_ptr is set.
`[in,out]`	got_sub_ptr	Zero if no subtitle could be decompressed, otherwise, it is nonzero.
`[in]`	avpkt	The input AVPacket containing the input buffer.

Definition at line 836 of file utils.c.

Referenced by output_packet(), and subtitle_thread().

int avcodec_decode_video2	(	AVCodecContext *	avctx,
		AVFrame *	picture,
		int *	got_picture_ptr,
		AVPacket *	avpkt
	)

Decode the video frame of size avpkt->size from avpkt->data into picture.

Some decoders may support multiple frames in a single AVPacket, such decoders would then just decode the first frame.

Warning:: The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than the actual read bytes because some optimized bitstream readers read 32 or 64 bits at once and could read over the end.
The end of the input buffer buf should be set to 0 to ensure that no overreading happens for damaged MPEG streams.

Note:: You might have to align the input buffer avpkt->data. The alignment requirements depend on the CPU: on some CPUs it isn't necessary at all, on others it won't work at all if not aligned and on others it will work but it will have an impact on performance.

In practice, avpkt->data should have 4 byte alignment at minimum.

Note:: Some codecs have a delay between input and output, these need to be fed with avpkt->data=NULL, avpkt->size=0 at the end to return the remaining frames.

Parameters:

	avctx	the codec context
`[out]`	picture	The AVFrame in which the decoded video frame will be stored. Use avcodec_alloc_frame to get an AVFrame, the codec will allocate memory for the actual bitmap. with default get/release_buffer(), the decoder frees/reuses the bitmap as it sees fit. with overridden get/release_buffer() (needs CODEC_CAP_DR1) the user decides into what buffer the decoder decodes and the decoder tells the user once it does not need the data anymore, the user app can at this point free/reuse/keep the memory as it sees fit.
`[in]`	avpkt	The input AVpacket containing the input buffer. You can create such packet with av_init_packet() and by then setting data and size, some decoders might in addition need other fields like flags&AV_PKT_FLAG_KEY. All decoders are designed to use the least fields possible.
`[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 752 of file utils.c.

Referenced by get_video_frame(), movie_get_frame(), output_packet(), try_decode_frame(), and video_decode_example().

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

Definition at line 437 of file utils.c.

Referenced by avcodec_get_context_defaults2(), and avcodec_thread_execute().

int avcodec_default_execute2	(	AVCodecContext *	c,
		int()(AVCodecContext c2, void *arg2, int, int)	func,
		void *	arg,
		int *	ret,
		int	count
	)

Referenced by avcodec_get_context_defaults2().

void avcodec_default_free_buffers ( AVCodecContext * s )

Definition at line 1171 of file utils.c.

Referenced by avcodec_close(), frame_thread_free(), and MPV_common_end().

int avcodec_default_get_buffer	(	AVCodecContext *	s,
		AVFrame *	pic
	)

Definition at line 227 of file utils.c.

Referenced by avcodec_get_context_defaults2(), ff_thread_get_buffer(), and submit_packet().

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

Definition at line 457 of file utils.c.

Referenced by avcodec_get_context_defaults2().

int avcodec_default_reget_buffer	(	AVCodecContext *	s,
		AVFrame *	pic
	)

Definition at line 401 of file utils.c.

Referenced by avcodec_get_context_defaults2().

void avcodec_default_release_buffer	(	AVCodecContext *	s,
		AVFrame *	pic
	)

Definition at line 370 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
	)

Encode an audio frame from samples into buf.

Note:: The output buffer should be at least FF_MIN_BUFFER_SIZE bytes large. However, for PCM audio the user will know how much space is needed because it depends on the value passed in buf_size as described below. In that case a lower value can be used.

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 672 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 706 of file utils.c.

Referenced by do_subtitle_out().

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

Encode a video frame from pict into 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 687 of file utils.c.

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

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

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

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 644 of file imgconvert.c.

AVCodec* avcodec_find_decoder ( enum CodecID id )

Find 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 939 of file utils.c.

Referenced by audio_decode_example(), av_find_best_stream(), avcodec_string(), avformat_find_stream_info(), find_codec_or_die(), movie_init(), open_input_file(), open_parser(), opt_input_file(), stream_component_open(), transcode(), try_decode_frame(), and video_decode_example().

AVCodec* avcodec_find_decoder_by_name ( const char * name )

Find 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 955 of file utils.c.

Referenced by find_codec_or_die(), and opt_input_file().

AVCodec* avcodec_find_encoder ( enum CodecID id )

Find 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 909 of file utils.c.

Referenced by asf_write_header1(), audio_encode_example(), avcodec_string(), compute_status(), config(), estimate_best_b_count(), ffserver_opt_preset(), find_codec_or_die(), new_audio_stream(), new_subtitle_stream(), new_video_stream(), open_audio(), open_video(), read_ffserver_streams(), transcode(), vf_open(), and video_encode_example().

AVCodec* avcodec_find_encoder_by_name ( const char * name )

Find 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 925 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 1163 of file utils.c.

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

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

Definition at line 414 of file imgconvert.c.

Referenced by avcodec_default_get_buffer(), encode_init(), ff_print_debug_info(), j2kenc_init(), load_input_picture(), MPV_common_init(), MPV_encode_init(), and vp3_decode_init().

void avcodec_get_context_defaults ( AVCodecContext * s )

Set 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 550 of file options.c.

void avcodec_get_context_defaults2	(	AVCodecContext *	s,
		enum	AVMediaType
	)

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

Definition at line 480 of file options.c.

Referenced by avcodec_alloc_context2(), avcodec_get_context_defaults(), avcodec_get_context_defaults3(), and parse_ffconfig().

int avcodec_get_context_defaults3	(	AVCodecContext *	s,
		AVCodec *	codec
	)

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

Definition at line 510 of file options.c.

Referenced by avcodec_alloc_context3(), new_audio_stream(), new_data_stream(), new_subtitle_stream(), and new_video_stream().

unsigned avcodec_get_edge_width ( void )

Return the amount of padding in pixels which the get_buffer callback must provide around the edge of the image for codecs which do not have the CODEC_FLAG_EMU_EDGE flag.

Returns:: Required padding in pixels.

Definition at line 98 of file utils.c.

void avcodec_get_frame_defaults ( AVFrame * pic )

Set 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 463 of file utils.c.

Referenced by a64multi_init_encoder(), aasc_decode_init(), aura_decode_init(), avcodec_alloc_frame(), avs_decode_init(), bethsoftvid_decode_init(), bfi_decode_init(), bmp_decode_init(), bmp_encode_init(), cdg_init_frame(), cinepak_decode_init(), cinvideo_decode_init(), cmv_decode_init(), common_init(), cyuv_decode_init(), decode_init(), dnxhd_decode_init(), do_video_out(), encode_init(), escape124_decode_frame(), escape124_decode_init(), estimate_best_b_count(), ff_mjpeg_decode_init(), ff_pnm_init(), ff_vp56_init(), flashsv_decode_init(), flic_decode_init(), frame_worker_thread(), gif_decode_init(), idcin_decode_init(), indeo3_decode_init(), ipvideo_decode_init(), ir2_decode_init(), j2kdec_init(), libopenjpeg_decode_init(), mdec_common_init(), mm_decode_init(), mp_decode_init(), MPV_common_init(), msrle_decode_init(), msvideo1_decode_init(), output_packet(), pcx_encode_init(), pcx_init(), png_dec_init(), png_enc_init(), ptx_init(), qtrle_decode_init(), rl2_decode_init(), roq_decode_init(), rpza_decode_init(), seqvideo_decode_init(), sgi_init(), smc_decode_init(), sunrast_init(), targa_encode_init(), targa_init(), tgv_decode_init(), tiff_init(), tmv_decode_init(), truemotion1_decode_init(), try_decode_frame(), txd_init(), ulti_decode_init(), vmdvideo_decode_init(), vqa_decode_init(), xan_decode_init(), and yop_decode_init().

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

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

When converting from one pixel format to another, information loss may occur. For example, when converting from RGB24 to GRAY, the color information will be lost. Similarly, other losses occur when converting from some formats to other formats. These losses can involve loss of chroma, but also loss of resolution, loss of color depth, loss due to the color space conversion, loss of the alpha bits or loss due to color quantization. avcodec_get_fix_fmt_loss() informs you about the various types of losses which will occur when converting from one pixel format to another.

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 506 of file imgconvert.c.

Referenced by avcodec_find_best_pix_fmt(), and avcodec_find_best_pix_fmt1().

attribute_deprecated const char* avcodec_get_pix_fmt_name ( enum PixelFormat pix_fmt )

Return the short name for a pixel format.

See also:: av_get_pix_fmt(), av_get_pix_fmt_string().

Deprecated:: Deprecated in favor of av_get_pix_fmt_name().

Definition at line 421 of file imgconvert.c.

void avcodec_init ( void )

Initialize libavcodec.

If called more than once, does nothing.

Warning:: This function must be called before any other libavcodec function.
This function is not thread-safe.

Definition at line 1152 of file utils.c.

Referenced by avcodec_register(), and main().

const char* avcodec_license ( void )

Return the libavcodec license.

Definition at line 1146 of file utils.c.

int avcodec_open	(	AVCodecContext *	avctx,
		AVCodec *	codec
	)

Initialize the AVCodecContext to use the given AVCodec.

Prior to using this function the context has to be allocated.

The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for retrieving a codec.

Warning:: This function is not thread safe!

 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, avcodec_close

Deprecated:: use avcodec_open2

Definition at line 490 of file utils.c.

Referenced by audio_decode_example(), audio_encode_example(), config(), movie_init(), open_audio(), open_input_file(), open_parser(), open_video(), stream_component_open(), transcode(), vf_open(), video_decode_example(), and video_encode_example().

int avcodec_open2	(	AVCodecContext *	avctx,
		AVCodec *	codec,
		AVDictionary **	options
	)

Initialize the AVCodecContext to use the given AVCodec.

Prior to using this function the context has to be allocated with avcodec_alloc_context().

The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for retrieving a codec.

Warning:: This function is not thread safe!

 avcodec_register_all();
 av_dict_set(&opts, "b", "2.5M", 0);
 codec = avcodec_find_decoder(CODEC_ID_H264);
 if (!codec)
     exit(1);

 context = avcodec_alloc_context();

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

Parameters:

	avctx	The context to initialize.
	options	A dictionary filled with AVCodecContext and codec-private options. On return this object will be filled with options that were not found.

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

See also:: avcodec_alloc_context3(), avcodec_find_decoder(), avcodec_find_encoder(), av_dict_set(), av_opt_find().

Definition at line 496 of file utils.c.

Referenced by avcodec_open(), avformat_find_stream_info(), estimate_best_b_count(), and try_decode_frame().

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

unsigned int avcodec_pix_fmt_to_codec_tag ( enum PixelFormat pix_fmt )

Return a value representing the fourCC code associated to the pixel format pix_fmt, or 0 if no associated fourCC code can be found.

Definition at line 142 of file raw.c.

Referenced by avformat_find_stream_info(), and raw_init_encoder().

void avcodec_register ( AVCodec * codec )

Register the codec codec and initialize libavcodec.

See also:: avcodec_init(), avcodec_register_all()

Definition at line 88 of file utils.c.

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 48 of file allcodecs.c.

Referenced by av_register_all(), main(), and vf_open().

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

Definition at line 103 of file utils.c.

Referenced by av_mpeg4_decode_header(), avcodec_open2(), cmv_process_header(), decode_frame(), decode_init(), decode_slice_header(), dnxhd_decode_frame(), execute_code(), ff_dirac_parse_sequence_header(), ff_h263_decode_frame(), ff_mjpeg_decode_sof(), ff_vp56_decode_frame(), gif_decode_frame(), h261_decode_frame(), init_image(), iv_decode_frame(), libopenjpeg_decode_frame(), mpeg_decode_postinit(), mpegvideo_extract_headers(), parse_presentation_segment(), pcx_decode_frame(), ptx_decode_frame(), rv20_decode_picture_header(), rv34_decode_slice(), sunrast_decode_frame(), svq1_decode_frame(), tgq_decode_frame(), tgv_decode_frame(), theora_header(), tqi_decode_frame(), truemotion1_decode_header(), txd_decode_frame(), update_dimensions(), vp56_size_changed(), vp5_parse_header(), vp6_parse_header(), and vp8_decode().

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

Definition at line 1007 of file utils.c.

Referenced by avformat_find_stream_info(), and dump_stream_format().

attribute_deprecated int avcodec_thread_init	(	AVCodecContext *	s,
		int	thread_count
	)

Deprecated:: Set s->thread_count before calling avcodec_open() instead of calling this.

Definition at line 1379 of file utils.c.

unsigned avcodec_version ( void )

Return the LIBAVCODEC_VERSION_INT constant.

Definition at line 1136 of file utils.c.

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

Allocate memory for a picture.

Call avpicture_free() to free it.

See also:: avpicture_fill()

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 771 of file imgconvert.c.

Referenced by do_video_out(), ff_create_schro_frame(), libschroedinger_handle_first_access_unit(), and qtrle_encode_init().

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

Definition at line 1042 of file imgconvert.c.

Referenced by pre_process_video_frame().

int avpicture_fill	(	AVPicture *	picture,
		uint8_t *	ptr,
		enum PixelFormat	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. Call with ptr == NULL to get the required size for the ptr buffer.

To allocate the buffer and fill in the AVPicture fields in one call, use avpicture_alloc().

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 432 of file imgconvert.c.

Referenced by alloc_picture(), avpicture_get_size(), copy_frame(), libdirac_decode_frame(), libschroedinger_decode_frame(), output_packet(), pre_process_video_frame(), raw_decode(), and sdl_write_packet().

void avpicture_free ( AVPicture * picture )

Free a picture previously allocated by avpicture_alloc().

The data buffer used by the AVPicture is freed, but the AVPicture structure itself is not.

Parameters:

picture

the AVPicture to be freed

Definition at line 784 of file imgconvert.c.

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

int avpicture_get_size	(	enum PixelFormat	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.

Note that this returns the size of a compact representation as generated by avpicture_layout(), which can be smaller than the size required for e.g. avpicture_fill().

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 or -1 on error (e.g. too large dimensions).

Definition at line 489 of file imgconvert.c.

Referenced by alloc_picture(), avpicture_layout(), dc1394_read_header(), libdirac_decode_frame(), libdirac_encode_init(), libschroedinger_encode_init(), pam_encode_frame(), pnm_encode_frame(), pnm_parse(), pre_process_video_frame(), raw_init_decoder(), rawvideo_read_packet(), targa_encode_frame(), v4l2_read_header(), and yuv4_read_packet().

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

Copy pixel data from an AVPicture into a buffer.

The data is stored compactly, without any gaps for alignment or padding which may be applied by avpicture_fill().

See also:: avpicture_get_size()

Parameters:

`[in]`	src	AVPicture containing image data
`[in]`	pix_fmt	The format in which the picture data is stored.
`[in]`	width	the width of the image in pixels.
`[in]`	height	the height of the image in pixels.
`[out]`	dest	A buffer into which picture data will be copied.
`[in]`	dest_size	The size of 'dest'.

Returns:: The number of bytes written to dest, or a negative value (error code) on error.

Definition at line 446 of file imgconvert.c.

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

void avsubtitle_free ( AVSubtitle * sub )

Frees all allocated data in the given subtitle struct.

Parameters:

sub

AVSubtitle to free.

Definition at line 851 of file utils.c.

Referenced by free_subpicture(), and output_packet().

int img_get_alpha_info	(	const AVPicture *	src,
		enum PixelFormat	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 913 of file imgconvert.c.