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 "libavutil/log.h"
#include "libavutil/pixfmt.h"
#include "libavutil/rational.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
 AVPaletteControl This structure defines a method for communicating palette changes between and demuxer and a decoder. More...
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   16
 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_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_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_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_CBP_RD   0x04000000
 Use rate distortion optimization for cbp.
#define CODEC_FLAG_QP_RD   0x08000000
 Use rate distortion optimization for qp selectioon.
#define CODEC_FLAG_LOOP_FILTER   0x00000800
 loop filter
#define CODEC_FLAG_INTERLACED_ME   0x20000000
 interlaced motion estimation
#define CODEC_FLAG_CLOSED_GOP   0x80000000
#define CODEC_FLAG2_FAST   0x00000001
 Allow non spec compliant speedup tricks.
#define CODEC_FLAG2_STRICT_GOP   0x00000002
 Strictly enforce GOP size.
#define CODEC_FLAG2_NO_OUTPUT   0x00000004
 Skip bitstream encoding.
#define CODEC_FLAG2_LOCAL_HEADER   0x00000008
 Place global headers at every keyframe instead of in extradata.
#define CODEC_FLAG2_SKIP_RD   0x00004000
 RD optimal MB level residual skipping.
#define CODEC_FLAG2_CHUNKS   0x00008000
 Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
#define CODEC_FLAG2_SHOW_ALL   0x00400000
 Show all frames before the first keyframe.
#define CODEC_FLAG_OBMC   0x00000001
 OBMC.
#define CODEC_FLAG_H263P_AIV   0x00000008
 H.263 alternative inter VLC.
#define CODEC_FLAG_PART   0x0080
 Use data partitioning.
#define CODEC_FLAG_ALT_SCAN   0x00100000
 Use alternate scan.
#define CODEC_FLAG_H263P_UMV   0x02000000
 unlimited motion vector
#define CODEC_FLAG_H263P_SLICE_STRUCT   0x10000000
#define CODEC_FLAG_SVCD_SCAN_OFFSET   0x40000000
 Will reserve space for SVCD scan offset user data.
#define CODEC_FLAG2_INTRA_VLC   0x00000800
 Use MPEG-2 intra VLC table.
#define CODEC_FLAG2_DROP_FRAME_TIMECODE   0x00002000
 timecode is in drop frame format.
#define CODEC_FLAG2_NON_LINEAR_QUANT   0x00010000
 Use MPEG-2 nonlinear quantizer.
#define CODEC_FLAG_EXTERN_HUFF   0x1000
 Use external Huffman table (for MJPEG).
#define CODEC_FLAG2_BPYRAMID   0x00000010
 H.264 allow B-frames to be used as references.
#define CODEC_FLAG2_WPRED   0x00000020
 H.264 weighted biprediction for B-frames.
#define CODEC_FLAG2_MIXED_REFS   0x00000040
 H.264 one reference per partition, as opposed to one reference per macroblock.
#define CODEC_FLAG2_8X8DCT   0x00000080
 H.264 high profile 8x8 transform.
#define CODEC_FLAG2_FASTPSKIP   0x00000100
 H.264 fast pskip.
#define CODEC_FLAG2_AUD   0x00000200
 H.264 access unit delimiters.
#define CODEC_FLAG2_BRDO   0x00000400
 B-frame rate-distortion optimization.
#define CODEC_FLAG2_MBTREE   0x00040000
 Use macroblock tree ratecontrol (x264 only).
#define CODEC_FLAG2_PSY   0x00080000
 Use psycho visual optimizations.
#define CODEC_FLAG2_SSIM   0x00100000
 Compute SSIM during encoding, error[] values are undefined.
#define CODEC_FLAG2_INTRA_REFRESH   0x00200000
 Use periodic insertion of intra blocks instead of keyframes.
#define CODEC_FLAG2_MEMC_ONLY   0x00001000
 Only do ME/MC (I frames -> ref, P frame -> ME+MC).
#define CODEC_FLAG2_BIT_RESERVOIR   0x00020000
 Use a bit reservoir when encoding if possible.
#define CODEC_CAP_DRAW_HORIZ_BAND   0x0001
#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
 Encoder or decoder requires flushing with NULL input at the end in order to give the complete and correct output.
#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_PARAM_CHANGE   0x4000
 Codec supports changed parameters at any point.
#define CODEC_CAP_AUTO_THREADS   0x8000
 Codec supports avctx->thread_count == 0 (auto).
#define CODEC_CAP_VARIABLE_FRAME_SIZE   0x10000
 Audio encoder supports receiving a different number of samples in each call.
#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_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
 The packet contains a keyframe.
#define AV_PKT_FLAG_CORRUPT   0x0002
 The packet content is corrupted.
#define AV_NUM_DATA_POINTERS   4
#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_ER_EXPLODE   5
#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_PROFILE_MPEG4_SIMPLE   0
#define FF_PROFILE_MPEG4_SIMPLE_SCALABLE   1
#define FF_PROFILE_MPEG4_CORE   2
#define FF_PROFILE_MPEG4_MAIN   3
#define FF_PROFILE_MPEG4_N_BIT   4
#define FF_PROFILE_MPEG4_SCALABLE_TEXTURE   5
#define FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION   6
#define FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE   7
#define FF_PROFILE_MPEG4_HYBRID   8
#define FF_PROFILE_MPEG4_ADVANCED_REAL_TIME   9
#define FF_PROFILE_MPEG4_CORE_SCALABLE   10
#define FF_PROFILE_MPEG4_ADVANCED_CODING   11
#define FF_PROFILE_MPEG4_ADVANCED_CORE   12
#define FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE   13
#define FF_PROFILE_MPEG4_SIMPLE_STUDIO   14
#define FF_PROFILE_MPEG4_ADVANCED_SIMPLE   15
#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
 Decode more than one frame at once.
#define FF_THREAD_SLICE   2
 Decode more than one part of a single frame at once.
#define AV_EF_CRCCHECK   (1<<0)
#define AV_EF_BITSTREAM   (1<<1)
#define AV_EF_BUFFER   (1<<2)
#define AV_EF_EXPLODE   (1<<3)
#define AV_EF_CAREFUL   (1<<16)
#define AV_EF_COMPLIANT   (1<<17)
#define AV_EF_AGGRESSIVE   (1<<18)
#define AVPALETTE_SIZE   1024
#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 AVCodecDefault AVCodecDefault
typedef struct AVPaletteControl attribute_deprecated
 AVPaletteControl This structure defines a method for communicating palette changes between and demuxer and a decoder.
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_WMV3IMAGE, CODEC_ID_VC1IMAGE, CODEC_ID_G723_1_DEPRECATED, CODEC_ID_G729_DEPRECATED,
  CODEC_ID_UTVIDEO_DEPRECATED, CODEC_ID_BMV_VIDEO, CODEC_ID_VBLE, CODEC_ID_DXTORY,
  CODEC_ID_V410, CODEC_ID_XWD, CODEC_ID_Y41P = MKBETAG('Y','4','1','P'), CODEC_ID_UTVIDEO = 0x800,
  CODEC_ID_ESCAPE130 = MKBETAG('E','1','3','0'), CODEC_ID_AVRP = MKBETAG('A','V','R','P'), CODEC_ID_G2M = MKBETAG( 0 ,'G','2','M'), CODEC_ID_V308 = MKBETAG('V','3','0','8'),
  CODEC_ID_YUV4 = MKBETAG('Y','U','V','4'), CODEC_ID_FIRST_AUDIO = 0x10000, CODEC_ID_PCM_S16LE = 0x10000, CODEC_ID_PCM_S16BE,
  CODEC_ID_PCM_U16LE, CODEC_ID_PCM_U16BE, CODEC_ID_PCM_S8, CODEC_ID_PCM_U8,
  CODEC_ID_PCM_MULAW, CODEC_ID_PCM_ALAW, CODEC_ID_PCM_S32LE, CODEC_ID_PCM_S32BE,
  CODEC_ID_PCM_U32LE, CODEC_ID_PCM_U32BE, CODEC_ID_PCM_S24LE, CODEC_ID_PCM_S24BE,
  CODEC_ID_PCM_U24LE, CODEC_ID_PCM_U24BE, CODEC_ID_PCM_S24DAUD, CODEC_ID_PCM_ZORK,
  CODEC_ID_PCM_S16LE_PLANAR, CODEC_ID_PCM_DVD, CODEC_ID_PCM_F32BE, CODEC_ID_PCM_F32LE,
  CODEC_ID_PCM_F64BE, CODEC_ID_PCM_F64LE, CODEC_ID_PCM_BLURAY, CODEC_ID_PCM_LXF,
  CODEC_ID_S302M, CODEC_ID_PCM_S8_PLANAR, 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_ADPCM_IMA_APC,
  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_BMV_AUDIO,
  CODEC_ID_G729 = 0x15800, CODEC_ID_G723_1 = 0x15801, CODEC_ID_FFWAVESYNTH = MKBETAG('F','F','W','S'), CODEC_ID_8SVX_RAW = MKBETAG('8','S','V','X'),
  CODEC_ID_FIRST_SUBTITLE = 0x17000, 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 = MKBETAG('m','D','V','D'), CODEC_ID_FIRST_UNKNOWN = 0x18000,
  CODEC_ID_TTF = 0x18000, CODEC_ID_BINTEXT = MKBETAG('B','T','X','T'), CODEC_ID_XBIN = MKBETAG('X','B','I','N'), CODEC_ID_IDF = MKBETAG( 0 ,'I','D','F'),
  CODEC_ID_PROBE = 0x19000, CODEC_ID_MPEG2TS = 0x20000, CODEC_ID_MPEG4SYSTEMS = 0x20001, 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_SMPTE240M = 7, 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_YCGCO = 8,
  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, AV_PKT_DATA_NEW_EXTRADATA, AV_PKT_DATA_PARAM_CHANGE }
enum  AVSideDataParamChangeFlags { AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT = 0x0001, AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT = 0x0002, AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE = 0x0004, AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS = 0x0008 }
 An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows: u32le param_flags if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) s32le channel_count if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) u64le channel_layout if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) s32le sample_rate if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) s32le width s32le height. More...
enum  AVFieldOrder {
  AV_FIELD_UNKNOWN, AV_FIELD_PROGRESSIVE, AV_FIELD_TT, AV_FIELD_BB,
  AV_FIELD_TB, AV_FIELD_BT
}
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)
const char * avcodec_get_name (enum CodecID id)
 Get the name of a codec.
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.
enum PixelFormat avcodec_find_best_pix_fmt2 (enum PixelFormat dst_pix_fmt1, enum PixelFormat dst_pix_fmt2, enum PixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
 Find the best pixel format to convert to given a certain source pixel format and a selection of two destination pixel formats.
attribute_deprecated 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.
attribute_deprecated void avcodec_init (void)
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.
attribute_deprecated void avcodec_get_context_defaults (AVCodecContext *s)
 Set the fields of the given AVCodecContext to default values.
attribute_deprecated 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)
 Set the fields of the given AVCodecContext to default values corresponding to the given codec (defaults may be codec-dependent).
attribute_deprecated
AVCodecContext * 		avcodec_alloc_context (void)
 Allocate an AVCodecContext and set its fields to default values.
attribute_deprecated
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)
 Allocate an AVCodecContext and set its fields to default values.
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[AV_NUM_DATA_POINTERS])
 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)
attribute_deprecated 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.
attribute_deprecated int avcodec_decode_audio3 (AVCodecContext *avctx, int16_t *samples, int *frame_size_ptr, AVPacket *avpkt)
 Wrapper function which calls avcodec_decode_audio4.
int avcodec_decode_audio4 (AVCodecContext *avctx, AVFrame *frame, int *got_frame_ptr, AVPacket *avpkt)
 Decode the audio frame of size avpkt->size from avpkt->data into frame.
int avcodec_decode_video2 (AVCodecContext *avctx, AVFrame *picture, int *got_picture_ptr, const 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)
 Free all allocated data in the given subtitle struct.
int attribute_deprecated 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_audio2 (AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
 Encode a frame of audio.
int avcodec_fill_audio_frame (AVFrame *frame, int nb_channels, enum AVSampleFormat sample_fmt, const uint8_t *buf, int buf_size, int align)
 Fill audio frame data and linesize.
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)
 Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext itself).
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_fast_padded_malloc (void *ptr, unsigned int *size, size_t min_size)
 Same behaviour av_fast_malloc but the buffer has additional FF_INPUT_PADDING_SIZE at the end which will will always be 0.
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)
 Log a generic warning message about a missing feature.
void av_log_ask_for_sample (void *avc, const char *msg,...) av_printf_format(2
 Log a generic warning message asking for a sample.
void 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.
enum AVMediaType avcodec_get_type (enum CodecID codec_id)
 Get the type of the given codec.
const AVClass * avcodec_get_class (void)
 Get the AVClass for AVCodecContext.
const AVClass * avcodec_get_frame_class (void)
 Get the AVClass for AVFrame.
int avcodec_is_open (AVCodecContext *s)

Detailed Description

external API header

Definition in file avcodec.h.

Define Documentation

#define AV_EF_AGGRESSIVE   (1<<18)

Definition at line 3218 of file avcodec.h.

Referenced by avcodec_open2(), decode_slice(), ff_mpeg4_pred_dc(), huffman_decode(), mpeg4_decode_block(), and mpeg_decode_slice().

#define AV_EF_BITSTREAM   (1<<1)

Definition at line 3212 of file avcodec.h.

Referenced by ff_mpeg4_pred_dc(), ff_msmpeg4_decode_block(), h261_decode_gob_header(), h263_decode_block(), huffman_decode(), mpeg1_decode_picture(), mpeg1_decode_sequence(), mpeg4_decode_block(), mpeg4_decode_dc(), and mpeg_decode_slice().

#define AV_EF_BUFFER   (1<<2)

Definition at line 3213 of file avcodec.h.

Referenced by decode_slice(), and huffman_decode().

#define AV_EF_CAREFUL   (1<<16)

Definition at line 3216 of file avcodec.h.

Referenced by ac3_decode_frame(), avcodec_open2(), decode_frame(), decode_init(), and read_specific_config().

#define AV_EF_COMPLIANT   (1<<17)

Definition at line 3217 of file avcodec.h.

Referenced by avcodec_open2(), ff_msmpeg4_decode_block(), h261_decode_gob_header(), h263_decode_block(), huffman_decode(), mpeg1_decode_picture(), mpeg1_decode_sequence(), and mpeg4_decode_dc().

#define AV_EF_CRCCHECK   (1<<0)

Definition at line 3211 of file avcodec.h.

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

#define AV_EF_EXPLODE   (1<<3)

Definition at line 3214 of file avcodec.h.

Referenced by aac_decode_init(), avcodec_open2(), avi_read_header(), decode_chunks(), decode_slice_header(), ff_er_frame_end(), ff_h263_decode_frame(), ff_h264_execute_ref_pic_marking(), ff_mjpeg_decode_frame(), mjpegb_decode_frame(), mpeg_decode_frame(), mxpeg_decode_frame(), and slice_decode_thread().

#define AV_NUM_DATA_POINTERS   4

Definition at line 1018 of file avcodec.h.

Referenced by avcodec_align_dimensions(), avcodec_default_reget_buffer(), avcodec_default_release_buffer(), avcodec_fill_audio_frame(), ff_draw_horiz_band(), video_get_buffer(), and vp3_draw_horiz_band().

#define AV_PARSER_PTS_NB   4

Definition at line 4560 of file avcodec.h.

Referenced by av_parser_parse2(), and ff_fetch_timestamp().

#define AV_PKT_FLAG_CORRUPT   0x0002

The packet content is corrupted.

Definition at line 983 of file avcodec.h.

Referenced by av_read_packet(), handle_packet(), new_pes_packet(), and read_packet().

#define AV_PKT_FLAG_KEY   0x0001

The packet contains a keyframe.

Definition at line 982 of file avcodec.h.

Referenced by applehttp_read_packet(), asf_read_pts(), asf_write_packet(), avi_write_packet(), avpriv_dv_produce_packet(), avs_read_audio_packet(), avs_read_video_packet(), compute_pkt_fields(), dc1394_read_header(), decode_frame(), dirac_gptopts(), do_streamcopy(), do_video_out(), dv_extract_audio_info(), ea_read_packet(), ff_asf_parse_packet(), ff_mov_add_hinted_packet(), ff_rm_parse_packet(), ff_rm_retrieve_cache(), ffm_read_packet(), ffm_write_packet(), flashsv_decode_frame(), flush_encoders(), 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(), modplug_read_packet(), mov_create_chapter_track(), mov_read_packet(), mov_write_packet_internal(), mpeg_mux_write_packet(), mpegts_write_end(), mpegts_write_packet(), msnwc_tcp_read_packet(), nsv_read_chunk(), nut_read_packet(), nut_write_packet(), nuv_packet(), ogg_read_packet(), ogg_read_timestamp(), ogg_write_packet(), ogm_packet(), old_dirac_gptopts(), pkt_dump_internal(), prepare_packet(), put_payload_header(), qt_rtp_parse_packet(), read_frame_internal(), read_packet(), rm_write_audio(), rm_write_video(), rpl_read_packet(), search_hi_lo_keyframes(), seek_frame_generic(), seg_write_packet(), show_packet(), siff_read_packet(), srt_read_packet(), Stagefright_decode_frame(), theora_gptopts(), tmv_read_packet(), vc1t_read_packet(), vc1test_write_packet(), write_audio_frame(), write_frame(), write_timestamp(), write_video_frame(), xmv_fetch_video_packet(), and yop_read_packet().

#define AVCODEC_MAX_AUDIO_FRAME_SIZE   192000

Definition at line 506 of file avcodec.h.

Referenced by dv_assemble_frame(), and dv_init_mux().

#define AVPALETTE_COUNT   256

Definition at line 3443 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

Definition at line 3442 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 468 of file avcodec.h.

#define CH_BACK_LEFT   AV_CH_BACK_LEFT

Definition at line 464 of file avcodec.h.

#define CH_BACK_RIGHT   AV_CH_BACK_RIGHT

Definition at line 465 of file avcodec.h.

#define CH_FRONT_CENTER   AV_CH_FRONT_CENTER

Definition at line 462 of file avcodec.h.

#define CH_FRONT_LEFT   AV_CH_FRONT_LEFT

Definition at line 460 of file avcodec.h.

#define CH_FRONT_LEFT_OF_CENTER   AV_CH_FRONT_LEFT_OF_CENTER

Definition at line 466 of file avcodec.h.

#define CH_FRONT_RIGHT   AV_CH_FRONT_RIGHT

Definition at line 461 of file avcodec.h.

#define CH_FRONT_RIGHT_OF_CENTER   AV_CH_FRONT_RIGHT_OF_CENTER

Definition at line 467 of file avcodec.h.

#define CH_LAYOUT_2_1   AV_CH_LAYOUT_2_1

Definition at line 489 of file avcodec.h.

#define CH_LAYOUT_2_2   AV_CH_LAYOUT_2_2

Definition at line 492 of file avcodec.h.

#define CH_LAYOUT_4POINT0   AV_CH_LAYOUT_4POINT0

Definition at line 491 of file avcodec.h.

#define CH_LAYOUT_5POINT0   AV_CH_LAYOUT_5POINT0

Definition at line 494 of file avcodec.h.

#define CH_LAYOUT_5POINT0_BACK   AV_CH_LAYOUT_5POINT0_BACK

Definition at line 496 of file avcodec.h.

#define CH_LAYOUT_5POINT1   AV_CH_LAYOUT_5POINT1

Definition at line 495 of file avcodec.h.

#define CH_LAYOUT_5POINT1_BACK   AV_CH_LAYOUT_5POINT1_BACK

Definition at line 497 of file avcodec.h.

#define CH_LAYOUT_7POINT0   AV_CH_LAYOUT_7POINT0

Definition at line 498 of file avcodec.h.

#define CH_LAYOUT_7POINT1   AV_CH_LAYOUT_7POINT1

Definition at line 499 of file avcodec.h.

#define CH_LAYOUT_7POINT1_WIDE   AV_CH_LAYOUT_7POINT1_WIDE

Definition at line 500 of file avcodec.h.

#define CH_LAYOUT_MONO   AV_CH_LAYOUT_MONO

Definition at line 487 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 484 of file avcodec.h.

#define CH_LAYOUT_QUAD   AV_CH_LAYOUT_QUAD

Definition at line 493 of file avcodec.h.

#define CH_LAYOUT_STEREO   AV_CH_LAYOUT_STEREO

Definition at line 488 of file avcodec.h.

#define CH_LAYOUT_STEREO_DOWNMIX   AV_CH_LAYOUT_STEREO_DOWNMIX

Definition at line 501 of file avcodec.h.

#define CH_LAYOUT_SURROUND   AV_CH_LAYOUT_SURROUND

Definition at line 490 of file avcodec.h.

#define CH_LOW_FREQUENCY   AV_CH_LOW_FREQUENCY

Definition at line 463 of file avcodec.h.

#define CH_SIDE_LEFT   AV_CH_SIDE_LEFT

Definition at line 469 of file avcodec.h.

#define CH_SIDE_RIGHT   AV_CH_SIDE_RIGHT

Definition at line 470 of file avcodec.h.

#define CH_STEREO_LEFT   AV_CH_STEREO_LEFT

Definition at line 478 of file avcodec.h.

#define CH_STEREO_RIGHT   AV_CH_STEREO_RIGHT

Definition at line 479 of file avcodec.h.

#define CH_TOP_BACK_CENTER   AV_CH_TOP_BACK_CENTER

Definition at line 476 of file avcodec.h.

#define CH_TOP_BACK_LEFT   AV_CH_TOP_BACK_LEFT

Definition at line 475 of file avcodec.h.

#define CH_TOP_BACK_RIGHT   AV_CH_TOP_BACK_RIGHT

Definition at line 477 of file avcodec.h.

#define CH_TOP_CENTER   AV_CH_TOP_CENTER

Definition at line 471 of file avcodec.h.

#define CH_TOP_FRONT_CENTER   AV_CH_TOP_FRONT_CENTER

Definition at line 473 of file avcodec.h.

#define CH_TOP_FRONT_LEFT   AV_CH_TOP_FRONT_LEFT

Definition at line 472 of file avcodec.h.

#define CH_TOP_FRONT_RIGHT   AV_CH_TOP_FRONT_RIGHT

Definition at line 474 of file avcodec.h.

#define CODEC_CAP_AUTO_THREADS   0x8000

Codec supports avctx->thread_count == 0 (auto).

Definition at line 824 of file avcodec.h.

Referenced by avcodec_open2(), and validate_thread_parameters().

#define CODEC_CAP_CHANNEL_CONF   0x0400

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

Definition at line 802 of file avcodec.h.

Referenced by try_decode_frame().

#define CODEC_CAP_DELAY   0x0020

Encoder or decoder requires flushing with NULL input at the end in order to give the complete and correct output.

NOTE: If this flag is not set, the codec is guaranteed to never be fed with with NULL data. The user can still send NULL data to the public encode or decode function, but libavcodec will not pass it along to the codec unless this flag is set.

Decoders: The decoder has a non-zero delay and needs to be fed with avpkt->data=NULL, avpkt->size=0 at the end to get the delayed data until the decoder no longer returns frames.

Encoders: The encoder needs to be fed with NULL data at the end of encoding until the encoder no longer returns data.

NOTE: For encoders implementing the AVCodec.encode2() function, setting this flag also means that the encoder must set the pts and duration for each output packet. If this flag is not set, the pts and duration will be determined by libavcodec from the input frame.

Definition at line 772 of file avcodec.h.

Referenced by audio_decode_frame(), avcodec_decode_audio4(), avcodec_decode_video2(), avcodec_encode_audio2(), avcodec_encode_video(), mpeg12_class(), read_thread(), 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 741 of file avcodec.h.

Referenced by init_input_stream(), opt_codecs(), and stream_component_open().

#define CODEC_CAP_DRAW_HORIZ_BAND   0x0001

Decoder can use draw_horiz_band callback.

Definition at line 735 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 798 of file avcodec.h.

Referenced by assert_codec_experimental(), avcodec_find_decoder(), avcodec_find_encoder(), and avcodec_open2().

#define CODEC_CAP_FRAME_THREADS   0x1000

Codec supports frame-level multithreading.

Definition at line 812 of file avcodec.h.

Referenced by validate_thread_parameters().

#define CODEC_CAP_HWACCEL   0x0010

Definition at line 748 of file avcodec.h.

#define CODEC_CAP_HWACCEL_VDPAU   0x0080

Codec can export data for HW decoding (VDPAU).

Definition at line 781 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 832 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 807 of file avcodec.h.

#define CODEC_CAP_PARAM_CHANGE   0x4000

Codec supports changed parameters at any point.

Definition at line 820 of file avcodec.h.

Referenced by apply_param_change().

#define CODEC_CAP_PARSE_ONLY   0x0004

Definition at line 744 of file avcodec.h.

#define CODEC_CAP_SLICE_THREADS   0x2000

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

Definition at line 816 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 777 of file avcodec.h.

Referenced by avcodec_encode_audio2(), and flush_encoders().

#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 793 of file avcodec.h.

#define CODEC_CAP_TRUNCATED   0x0008

Definition at line 746 of file avcodec.h.

Referenced by opt_codecs(), and video_decode_example().

#define CODEC_CAP_VARIABLE_FRAME_SIZE   0x10000

Audio encoder supports receiving a different number of samples in each call.

Definition at line 828 of file avcodec.h.

Referenced by avcodec_encode_audio2().

#define CODEC_FLAG2_CHUNKS   0x00008000

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

Definition at line 683 of file avcodec.h.

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

#define CODEC_FLAG2_FAST   0x00000001

Allow non spec compliant speedup tricks.

Definition at line 678 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_LOCAL_HEADER   0x00000008

Place global headers at every keyframe instead of in extradata.

Definition at line 681 of file avcodec.h.

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

#define CODEC_FLAG2_NO_OUTPUT   0x00000004

Skip bitstream encoding.

Definition at line 680 of file avcodec.h.

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

#define CODEC_FLAG2_SHOW_ALL   0x00400000

Show all frames before the first keyframe.

Definition at line 684 of file avcodec.h.

Referenced by decode_chunks(), and decode_nal_units().

#define CODEC_FLAG2_SKIP_RD   0x00004000

RD optimal MB level residual skipping.

Definition at line 682 of file avcodec.h.

Referenced by encode_thread().

#define CODEC_FLAG2_STRICT_GOP   0x00000002

Strictly enforce GOP size.

Definition at line 679 of file avcodec.h.

Referenced by select_input_picture().

#define CODEC_FLAG_4MV   0x0004

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

Definition at line 649 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 672 of file avcodec.h.

Referenced by mpeg4_encode_mb(), and MPV_encode_init().

#define CODEC_FLAG_BITEXACT   0x00800000

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

Definition at line 670 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(), encode_frame(), ff_ac3_encode_init(), ff_dct_common_init(), ff_fmt_convert_init_altivec(), ff_fmt_convert_init_arm(), ff_fmt_convert_init_x86(), ff_proresdsp_x86_init(), 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(), and parse_ffconfig().

#define CODEC_FLAG_CBP_RD   0x04000000

Use rate distortion optimization for cbp.

Definition at line 673 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 677 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 662 of file avcodec.h.

Referenced by add_input_streams(), alloc_buffer(), amv_encode_picture(), chroma_4mv_motion(), chroma_4mv_motion_lowres(), decode_frame(), decode_init(), decode_slice_header(), dirac_decode_init(), ff_draw_horiz_band(), ff_mspel_motion(), ff_rv34_decode_init(), ff_snow_frame_start(), gmc1_motion(), hpel_motion(), intra_predict(), load_input_picture(), mjpeg_decode_scan(), MPV_frame_end(), MPV_motion_internal(), stream_component_open(), svq3_mc_dir_part(), vc1_decode_init(), video_get_buffer(), and vp8_decode_frame().

#define CODEC_FLAG_GLOBAL_HEADER   0x00400000

Place global headers in extradata instead of every keyframe.

Definition at line 669 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_output_stream(), remove_extradata(), X264_init(), and XAVS_init().

#define CODEC_FLAG_GMC   0x0020

Use GMC.

Definition at line 651 of file avcodec.h.

#define CODEC_FLAG_GRAY   0x2000

Only decode/encode grayscale.

Definition at line 661 of file avcodec.h.

Referenced by backup_mb_border(), comp_block(), dct_get(), decode_slice(), decode_slice_thread(), dnxhd_decode_macroblock(), encode_mb_internal(), encode_slice_data(), ff_h264_filter_mb(), ff_mspel_motion(), ff_wmv2_add_mb(), ff_xvmc_decode_mb(), gmc1_motion(), gmc_motion(), h264_filter_mb_fast_internal(), hl_decode_mb_444_internal(), hl_decode_mb_internal(), idct_put(), 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(), vble_decode_frame(), vc1_decode_b_mb(), vc1_decode_b_mb_intfi(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_init(), vc1_decode_p_mb(), vc1_decode_p_mb_intfi(), vc1_decode_p_mb_intfr(), vc1_interp_mc(), vc1_mc_1mv(), vc1_mc_4mv_chroma(), vc1_mc_4mv_chroma4(), vc1_smooth_overlap_filter_iblk(), and xchg_mb_border().

#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 658 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 667 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 676 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 675 of file avcodec.h.

Referenced by MPV_encode_init(), and X264_init().

#define CODEC_FLAG_LOW_DELAY   0x00080000

Force low delay.

Definition at line 668 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(), validate_thread_parameters(), and vc1_decode_frame().

#define CODEC_FLAG_MV0   0x0040

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

Definition at line 652 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 666 of file avcodec.h.

Referenced by adaptive_quantization().

#define CODEC_FLAG_PASS1   0x0200

Use internal 2pass ratecontrol in first pass mode.

Definition at line 659 of file avcodec.h.

Referenced by avcodec_string(), encode_bgra_bitstream(), encode_frame(), encode_init(), encode_thread(), ff_h263_encode_mb(), mpeg4_encode_mb(), MPV_encode_picture(), new_video_stream(), transcode_init(), 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 660 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_init(), vp8_init(), X264_init(), and XAVS_init().

#define CODEC_FLAG_PSNR   0x8000

error[?] variables will be set during encoding.

Definition at line 663 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 674 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 650 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 648 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(), MP3lame_encode_init(), MPV_encode_init(), new_output_stream(), oggvorbis_init_encoder(), parse_ffconfig(), and vorbis_encode_init().

#define CODEC_FLAG_TRUNCATED   0x00010000

Definition at line 664 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 2427 of file avcodec.h.

#define FF_AA_FASTINT   1

Definition at line 2428 of file avcodec.h.

#define FF_AA_FLOAT   3

Definition at line 2430 of file avcodec.h.

#define FF_AA_INT   2

Definition at line 2429 of file avcodec.h.

#define FF_ALPHA_SEMI_TRANSP   0x0002

Definition at line 3886 of file avcodec.h.

Referenced by get_alpha_info_pal8(), and img_get_alpha_info().

#define FF_ALPHA_TRANSP   0x0001

Definition at line 3885 of file avcodec.h.

Referenced by get_alpha_info_pal8(), and img_get_alpha_info().

#define FF_ASPECT_EXTENDED   15

Definition at line 1462 of file avcodec.h.

Referenced by decode_vol_header(), ff_h263_aspect_to_info(), ff_h263_decode_picture_header(), ff_h263_encode_picture_header(), and mpeg4_encode_vol_header().

#define FF_B_TYPE   AV_PICTURE_TYPE_B

Bi-dir predicted.

Definition at line 901 of file avcodec.h.

#define FF_BI_TYPE   AV_PICTURE_TYPE_BI

Definition at line 905 of file avcodec.h.

#define FF_BUFFER_HINTS_PRESERVE   0x04

Definition at line 910 of file avcodec.h.

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

#define FF_BUFFER_HINTS_READABLE   0x02

Definition at line 909 of file avcodec.h.

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

#define FF_BUFFER_HINTS_REUSABLE   0x08

Definition at line 911 of file avcodec.h.

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

#define FF_BUFFER_HINTS_VALID   0x01

Definition at line 908 of file avcodec.h.

Referenced by aasc_decode_frame(), aura_decode_frame(), bethsoftvid_decode_init(), cdg_init_frame(), cinepak_decode_frame(), cinvideo_decode_frame(), cmv_decode_frame(), copy_frame(), cyuv_decode_frame(), decode_frame(), flashsv_decode_frame(), flic_decode_frame_15_16BPP(), flic_decode_frame_8BPP(), ir2_decode_frame(), mp_decode_frame(), msrle_decode_frame(), msvideo1_decode_frame(), qtrle_decode_frame(), rpza_decode_frame(), seqvideo_decode_frame(), smc_decode_frame(), tgq_decode_frame(), tgv_decode_frame(), truemotion1_decode_frame(), ulti_decode_frame(), and xan_decode_frame().

#define FF_BUFFER_TYPE_COPY   8

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

Definition at line 895 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 892 of file avcodec.h.

Referenced by audio_get_buffer(), avcodec_default_reget_buffer(), avcodec_default_release_buffer(), ff_mpeg_flush(), select_input_picture(), and video_get_buffer().

#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 894 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 893 of file avcodec.h.

Referenced by codec_get_buffer(), codec_release_buffer(), ff_mpeg_flush(), select_input_picture(), and transcode_video().

#define FF_BUG_AC_VLC   0

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

Definition at line 1658 of file avcodec.h.

#define FF_BUG_AMV   32

Definition at line 1657 of file avcodec.h.

Referenced by get_amv().

#define FF_BUG_AUTODETECT   1

autodetection

Definition at line 1652 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 1665 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and ff_mpeg4_pred_dc().

#define FF_BUG_DIRECT_BLOCKSIZE   512

Definition at line 1662 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and ff_mpeg4_set_direct_mv().

#define FF_BUG_EDGE   1024

Definition at line 1663 of file avcodec.h.

Referenced by decode_vop_header(), and ff_h263_decode_frame().

#define FF_BUG_HPEL_CHROMA   2048

Definition at line 1664 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 1666 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 1656 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 1653 of file avcodec.h.

#define FF_BUG_QPEL_CHROMA   64

Definition at line 1659 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and qpel_motion().

#define FF_BUG_QPEL_CHROMA2   256

Definition at line 1661 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and qpel_motion().

#define FF_BUG_STD_QPEL   128

Definition at line 1660 of file avcodec.h.

Referenced by ff_h263_decode_frame().

#define FF_BUG_TRUNCATED   16384

Definition at line 1667 of file avcodec.h.

Referenced by decode_nal_units(), and decode_slice().

#define FF_BUG_UMP4   8

Definition at line 1655 of file avcodec.h.

Referenced by decode_vop_header(), and ff_h263_decode_frame().

#define FF_BUG_XVID_ILACE   4

Definition at line 1654 of file avcodec.h.

Referenced by ff_h263_decode_frame(), and mpeg4_decode_mb().

#define FF_CMP_BIT   5

Definition at line 2126 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_CHROMA   256

Definition at line 2136 of file avcodec.h.

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

#define FF_CMP_DCT   3

Definition at line 2124 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_DCT264   14

Definition at line 2135 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_DCTMAX   13

Definition at line 2134 of file avcodec.h.

Referenced by add_codec(), and ff_set_cmp().

#define FF_CMP_NSSE   10

Definition at line 2131 of file avcodec.h.

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

#define FF_CMP_PSNR   4

Definition at line 2125 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_RD   6

Definition at line 2127 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 2121 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 2123 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_SSE   1

Definition at line 2122 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 2129 of file avcodec.h.

Referenced by ff_set_cmp().

#define FF_CMP_VSSE   9

Definition at line 2130 of file avcodec.h.

Referenced by encode_mb_internal(), and ff_set_cmp().

#define FF_CMP_W53   11

Definition at line 2132 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_W97   12

Definition at line 2133 of file avcodec.h.

Referenced by ff_set_cmp(), and get_penalty_factor().

#define FF_CMP_ZERO   7

Definition at line 2128 of file avcodec.h.

Referenced by ff_set_cmp().

#define FF_CODER_TYPE_AC   1

Definition at line 2265 of file avcodec.h.

Referenced by X264_init().

#define FF_CODER_TYPE_DEFLATE   4

Definition at line 2268 of file avcodec.h.

#define FF_CODER_TYPE_RAW   2

Definition at line 2266 of file avcodec.h.

Referenced by encode_frame(), and targa_encode_frame().

#define FF_CODER_TYPE_RLE   3

Definition at line 2267 of file avcodec.h.

#define FF_CODER_TYPE_VLC   0

Definition at line 2264 of file avcodec.h.

Referenced by libdirac_encode_init(), and libschroedinger_encode_init().

#define FF_COMPLIANCE_EXPERIMENTAL   -2

Allow nonstandardized experimental things.

Definition at line 1701 of file avcodec.h.

Referenced by assert_codec_experimental(), avcodec_open2(), config(), encode_init(), mp3_header_compress(), and MPV_encode_init().

#define FF_COMPLIANCE_NORMAL   0

Definition at line 1699 of file avcodec.h.

Referenced by encode_init(), ff_fix_long_p_mvs(), ff_get_best_fcode(), mkv_query_codec(), 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 1698 of file avcodec.h.

Referenced by decode_postinit().

#define FF_COMPLIANCE_UNOFFICIAL   -1

Allow unofficial extensions.

Definition at line 1700 of file avcodec.h.

Referenced by choose_pixel_fmt(), find_frame_rate_index(), libgsm_encode_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 1697 of file avcodec.h.

Referenced by mpeg4_encode_picture_header().

#define FF_COMPRESSION_DEFAULT   -1

Definition at line 2824 of file avcodec.h.

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

#define FF_DCT_ALTIVEC   5

Definition at line 1921 of file avcodec.h.

Referenced by dsputil_init_ppc(), and MPV_common_init_altivec().

#define FF_DCT_AUTO   0

Definition at line 1916 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 1922 of file avcodec.h.

Referenced by dsputil_init().

#define FF_DCT_FASTINT   1

Definition at line 1917 of file avcodec.h.

Referenced by dsputil_init(), and parse_ffconfig().

#define FF_DCT_INT   2

Definition at line 1918 of file avcodec.h.

#define FF_DCT_MLIB   4

Definition at line 1920 of file avcodec.h.

Referenced by MPV_common_init_mlib().

#define FF_DCT_MMX   3

Definition at line 1919 of file avcodec.h.

Referenced by dsputilenc_init_mmx(), and MPV_common_init_mmx().

#define FF_DEBUG_BITSTREAM   4

Definition at line 2064 of file avcodec.h.

Referenced by decode_init(), and pcm_bluray_decode_frame().

#define FF_DEBUG_BUFFERS   0x00008000

Definition at line 2077 of file avcodec.h.

Referenced by audio_get_buffer(), avcodec_default_release_buffer(), ff_thread_release_buffer(), and video_get_buffer().

#define FF_DEBUG_BUGS   0x00001000

Definition at line 2074 of file avcodec.h.

Referenced by decode_unregistered_user_data(), and ff_h263_decode_frame().

#define FF_DEBUG_DCT_COEFF   0x00000040

Definition at line 2068 of file avcodec.h.

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

#define FF_DEBUG_ER   0x00000400

Definition at line 2072 of file avcodec.h.

Referenced by ff_er_frame_end().

#define FF_DEBUG_MB_TYPE   8

Definition at line 2065 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_MMCO   0x00000800

Definition at line 2073 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 2067 of file avcodec.h.

Referenced by ff_alloc_picture(), and transcode_init().

#define FF_DEBUG_PICT_INFO   1

Definition at line 2062 of file avcodec.h.

Referenced by decode_ext_header(), decode_frame(), decode_init(), decode_picture_timing(), decode_slice_header(), decode_vol_header(), decode_vop_header(), ff_flv_decode_picture_header(), ff_h263_show_pict_info(), ff_h264_decode_picture_parameter_set(), ff_h264_decode_seq_parameter_set(), ff_mjpeg_decode_sos(), ff_wmv2_decode_secondary_picture_header(), mjpeg_decode_app(), mjpeg_decode_com(), mpeg1_decode_picture(), mpeg1_decode_sequence(), mpeg_decode_gop(), mpeg_decode_picture_display_extension(), mpeg_decode_sequence_display_extension(), mpeg_decode_sequence_extension(), mpeg_decode_slice(), msmpeg4_decode_picture_header(), pcm_bluray_parse_header(), rv10_decode_init(), rv20_decode_picture_header(), svq3_decode_frame(), and truemotion1_decode_header().

#define FF_DEBUG_PTS   0x00000200

Definition at line 2071 of file avcodec.h.

Referenced by decode_vop_header().

#define FF_DEBUG_QP   16

Definition at line 2066 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 2063 of file avcodec.h.

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

#define FF_DEBUG_SKIP   0x00000080

Definition at line 2069 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_STARTCODE   0x00000100

Definition at line 2070 of file avcodec.h.

Referenced by decode_chunks(), decode_codestream(), decode_frame(), decode_nal_units(), ff_h264_decode_sei(), ff_mjpeg_decode_frame(), ff_mpeg4_decode_picture_header(), and mjpeg_decode_app().

#define FF_DEBUG_THREADS   0x00010000

Definition at line 2078 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 2076 of file avcodec.h.

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

#define FF_DEBUG_VIS_MV_B_BACK   0x00000004

Definition at line 2088 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_VIS_MV_B_FOR   0x00000002

Definition at line 2087 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_VIS_MV_P_FOR   0x00000001

Definition at line 2086 of file avcodec.h.

Referenced by ff_print_debug_info().

#define FF_DEBUG_VIS_QP   0x00002000

Definition at line 2075 of file avcodec.h.

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

#define FF_DEFAULT_QUANT_BIAS   999999

Definition at line 2223 of file avcodec.h.

Referenced by dnxhd_encode_init(), and MPV_encode_init().

#define FF_DTG_AFD_14_9   11

Definition at line 2203 of file avcodec.h.

#define FF_DTG_AFD_16_9   10

Definition at line 2202 of file avcodec.h.

#define FF_DTG_AFD_16_9_SP_14_9   14

Definition at line 2205 of file avcodec.h.

#define FF_DTG_AFD_4_3   9

Definition at line 2201 of file avcodec.h.

#define FF_DTG_AFD_4_3_SP_14_9   13

Definition at line 2204 of file avcodec.h.

#define FF_DTG_AFD_SAME   8

Definition at line 2200 of file avcodec.h.

#define FF_DTG_AFD_SP_4_3   15

Definition at line 2206 of file avcodec.h.

#define FF_EC_DEBLOCK   2

Definition at line 2011 of file avcodec.h.

Referenced by ff_er_frame_end().

#define FF_EC_GUESS_MVS   1

Definition at line 2010 of file avcodec.h.

Referenced by guess_mv().

#define FF_ER_AGGRESSIVE   3

Definition at line 1720 of file avcodec.h.

Referenced by avcodec_open2(), and mpeg4_decode_mb().

#define FF_ER_CAREFUL   1

Definition at line 1718 of file avcodec.h.

Referenced by avcodec_open2().

#define FF_ER_COMPLIANT   2

Definition at line 1719 of file avcodec.h.

Referenced by avcodec_open2(), and mpeg4_decode_block().

#define FF_ER_EXPLODE   5

Definition at line 1722 of file avcodec.h.

Referenced by avcodec_open2(), and avi_read_header().

#define FF_ER_VERY_AGGRESSIVE   4

Definition at line 1721 of file avcodec.h.

Referenced by avcodec_open2().

#define FF_I_TYPE   AV_PICTURE_TYPE_I

Intra.

Definition at line 899 of file avcodec.h.

#define FF_IDCT_ALTIVEC   8

Definition at line 1973 of file avcodec.h.

Referenced by dsputil_init_ppc().

#define FF_IDCT_ARM   7

Definition at line 1972 of file avcodec.h.

Referenced by dsputil_init_arm().

#define FF_IDCT_AUTO   0

Definition at line 1965 of file avcodec.h.

Referenced by decode_init(), dsputil_init_alpha(), dsputil_init_arm(), dsputil_init_bfin(), dsputil_init_mmi(), dsputil_init_mmx(), dsputil_init_ppc(), dsputil_init_sh4(), ff_dsputil_init_armv5te(), ff_dsputil_init_armv6(), ff_dsputil_init_neon(), ff_h263_decode_frame(), ff_vp56_init(), tgq_decode_init(), tqi_decode_init(), vc1_decode_init(), vcr2_init_sequence(), vp3_decode_init(), and wmv2_decode_init().

#define FF_IDCT_BINK   24

Definition at line 1989 of file avcodec.h.

Referenced by decode_init().

#define FF_IDCT_CAVS   15

Definition at line 1980 of file avcodec.h.

Referenced by decode_pic(), and dsputil_init_mmx().

#define FF_IDCT_EA   21

Definition at line 1986 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 1985 of file avcodec.h.

Referenced by dsputil_init().

#define FF_IDCT_H264   11

Definition at line 1976 of file avcodec.h.

#define FF_IDCT_INT   1

Definition at line 1966 of file avcodec.h.

Referenced by dsputil_init().

#define FF_IDCT_IPP   13

Definition at line 1978 of file avcodec.h.

#define FF_IDCT_LIBMPEG2MMX   4

Definition at line 1969 of file avcodec.h.

Referenced by dsputil_init_mmx().

#define FF_IDCT_MLIB   6

Definition at line 1971 of file avcodec.h.

Referenced by MPV_common_init_mlib().

#define FF_IDCT_PS2   5

Definition at line 1970 of file avcodec.h.

Referenced by dsputil_init_mmi().

#define FF_IDCT_SH4   9

Definition at line 1974 of file avcodec.h.

Referenced by dsputil_init_sh4().

#define FF_IDCT_SIMPLE   2

Definition at line 1967 of file avcodec.h.

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

#define FF_IDCT_SIMPLEALPHA   23

Definition at line 1988 of file avcodec.h.

Referenced by dsputil_init_alpha().

#define FF_IDCT_SIMPLEARM   10

Definition at line 1975 of file avcodec.h.

Referenced by dsputil_init_arm().

#define FF_IDCT_SIMPLEARMV5TE   16

Definition at line 1981 of file avcodec.h.

Referenced by ff_dsputil_init_armv5te().

#define FF_IDCT_SIMPLEARMV6   17

Definition at line 1982 of file avcodec.h.

Referenced by ff_dsputil_init_armv6().

#define FF_IDCT_SIMPLEMMX   3

Definition at line 1968 of file avcodec.h.

Referenced by dsputil_init_mmx().

#define FF_IDCT_SIMPLENEON   22

Definition at line 1987 of file avcodec.h.

Referenced by ff_dsputil_init_neon().

#define FF_IDCT_SIMPLEVIS   18

Definition at line 1983 of file avcodec.h.

Referenced by dsputil_init_vis().

#define FF_IDCT_VP3   12

Definition at line 1977 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 1984 of file avcodec.h.

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

#define FF_IDCT_XVIDMMX   14

Definition at line 1979 of file avcodec.h.

Referenced by dsputil_init_mmx(), and ff_h263_decode_frame().

#define FF_INPUT_BUFFER_PADDING_SIZE   16

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 516 of file avcodec.h.

Referenced by a64multi_init_encoder(), aac_adtstoasc_filter(), aac_decode_frame(), aac_encode_init(), aacPlus_encode_init(), adx_read_header(), aiff_read_header(), alloc_buffers(), apc_read_header(), asf_read_stream_properties(), atrac3_decode_init(), audio_decode_example(), av_fast_padded_malloc(), 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_plane(), decode_stream_header(), dshow_add_device(), dump_extradata(), dv_decode_video_segment(), encode_init(), extract_header(), Faac_encode_init(), ff_alloc_packet(), ff_asf_parse_packet(), ff_combine_frame(), ff_h263_decode_frame(), ff_h264_decode_nal(), 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(), flv_queue_extradata(), h264_mp4toannexb_filter(), h264_new_context(), handle_packets(), iff_read_header(), imx_dump_header(), latm_decode_audio_specific_config(), matroska_fix_ass_packet(), matroska_read_header(), 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(), 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(), Stagefright_init(), submit_packet(), svq3_decode_frame(), svq3_parse_packet(), text2movsub(), theora_header(), tiff_unpack_strip(), transcode_init(), tta_read_header(), vc1_decode_frame(), vc1_decode_init(), vc1_extract_headers(), vfw_read_header(), video_decode_example(), vmd_read_header(), vqf_read_header(), wma_decode_superframe(), wsvqa_read_header(), wv_get_value_float(), xmv_process_packet_header(), xwma_read_header(), and yop_read_header().

#define FF_LEVEL_UNKNOWN   -99

Definition at line 2583 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 3799 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt2(), and avcodec_get_pix_fmt_loss().

#define FF_LOSS_CHROMA   0x0020

loss of chroma (e.g.

RGB to gray conversion)

Definition at line 3801 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt2(), and avcodec_get_pix_fmt_loss().

#define FF_LOSS_COLORQUANT   0x0010

loss due to color quantization

Definition at line 3800 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt2(), and avcodec_get_pix_fmt_loss().

#define FF_LOSS_COLORSPACE   0x0004

loss due to color space conversion

Definition at line 3798 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt2(), and avcodec_get_pix_fmt_loss().

#define FF_LOSS_DEPTH   0x0002

loss due to color depth change

Definition at line 3797 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt2(), and avcodec_get_pix_fmt_loss().

#define FF_LOSS_RESOLUTION   0x0001

loss due to resolution change

Definition at line 3796 of file avcodec.h.

Referenced by avcodec_find_best_pix_fmt2(), and avcodec_get_pix_fmt_loss().

#define FF_MAX_B_FRAMES   16

Definition at line 641 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 2315 of file avcodec.h.

Referenced by encode_thread(), and parse_ffconfig().

#define FF_MB_DECISION_RD   2

rate distortion

Definition at line 2316 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 2314 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 522 of file avcodec.h.

Referenced by avcodec_encode_video().

#define FF_P_TYPE   AV_PICTURE_TYPE_P

Predicted.

Definition at line 900 of file avcodec.h.

#define FF_PRED_LEFT   0

Definition at line 2036 of file avcodec.h.

#define FF_PRED_MEDIAN   2

Definition at line 2038 of file avcodec.h.

#define FF_PRED_PLANE   1

Definition at line 2037 of file avcodec.h.

#define FF_PROFILE_AAC_LOW   1

Definition at line 2521 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 2523 of file avcodec.h.

Referenced by Faac_encode_init().

#define FF_PROFILE_AAC_MAIN   0

Definition at line 2520 of file avcodec.h.

Referenced by Faac_encode_init().

#define FF_PROFILE_AAC_SSR   2

Definition at line 2522 of file avcodec.h.

Referenced by Faac_encode_init().

#define FF_PROFILE_DTS   20

Definition at line 2525 of file avcodec.h.

Referenced by dca_decode_frame().

#define FF_PROFILE_DTS_96_24   40

Definition at line 2527 of file avcodec.h.

Referenced by dca_decode_frame().

#define FF_PROFILE_DTS_ES   30

Definition at line 2526 of file avcodec.h.

Referenced by dca_decode_frame().

#define FF_PROFILE_DTS_HD_HRA   50

Definition at line 2528 of file avcodec.h.

Referenced by dca_exss_parse_asset_header().

#define FF_PROFILE_DTS_HD_MA   60

Definition at line 2529 of file avcodec.h.

Referenced by dca_exss_parse_asset_header().

#define FF_PROFILE_H264_BASELINE   66

Definition at line 2541 of file avcodec.h.

Referenced by ff_h264_get_profile().

#define FF_PROFILE_H264_CAVLC_444   44

Definition at line 2553 of file avcodec.h.

#define FF_PROFILE_H264_CONSTRAINED   (1<<9)

Definition at line 2538 of file avcodec.h.

Referenced by ff_h264_get_profile().

#define FF_PROFILE_H264_CONSTRAINED_BASELINE   (66|FF_PROFILE_H264_CONSTRAINED)

Definition at line 2542 of file avcodec.h.

#define FF_PROFILE_H264_EXTENDED   88

Definition at line 2544 of file avcodec.h.

#define FF_PROFILE_H264_HIGH   100

Definition at line 2545 of file avcodec.h.

#define FF_PROFILE_H264_HIGH_10   110

Definition at line 2546 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 2547 of file avcodec.h.

#define FF_PROFILE_H264_HIGH_422   122

Definition at line 2548 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 2549 of file avcodec.h.

#define FF_PROFILE_H264_HIGH_444   144

Definition at line 2550 of file avcodec.h.

#define FF_PROFILE_H264_HIGH_444_INTRA   (244|FF_PROFILE_H264_INTRA)

Definition at line 2552 of file avcodec.h.

#define FF_PROFILE_H264_HIGH_444_PREDICTIVE   244

Definition at line 2551 of file avcodec.h.

Referenced by ff_h264_get_profile().

#define FF_PROFILE_H264_INTRA   (1<<11)

Definition at line 2539 of file avcodec.h.

Referenced by ff_h264_get_profile().

#define FF_PROFILE_H264_MAIN   77

Definition at line 2543 of file avcodec.h.

#define FF_PROFILE_MPEG2_422   0

Definition at line 2531 of file avcodec.h.

#define FF_PROFILE_MPEG2_HIGH   1

Definition at line 2532 of file avcodec.h.

#define FF_PROFILE_MPEG2_MAIN   4

Definition at line 2535 of file avcodec.h.

#define FF_PROFILE_MPEG2_SIMPLE   5

Definition at line 2536 of file avcodec.h.

#define FF_PROFILE_MPEG2_SNR_SCALABLE   3

Definition at line 2534 of file avcodec.h.

#define FF_PROFILE_MPEG2_SS   2

Definition at line 2533 of file avcodec.h.

#define FF_PROFILE_MPEG4_ADVANCED_CODING   11

Definition at line 2571 of file avcodec.h.

#define FF_PROFILE_MPEG4_ADVANCED_CORE   12

Definition at line 2572 of file avcodec.h.

#define FF_PROFILE_MPEG4_ADVANCED_REAL_TIME   9

Definition at line 2569 of file avcodec.h.

#define FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE   13

Definition at line 2573 of file avcodec.h.

#define FF_PROFILE_MPEG4_ADVANCED_SIMPLE   15

Definition at line 2575 of file avcodec.h.

#define FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE   7

Definition at line 2567 of file avcodec.h.

#define FF_PROFILE_MPEG4_CORE   2

Definition at line 2562 of file avcodec.h.

#define FF_PROFILE_MPEG4_CORE_SCALABLE   10

Definition at line 2570 of file avcodec.h.

#define FF_PROFILE_MPEG4_HYBRID   8

Definition at line 2568 of file avcodec.h.

#define FF_PROFILE_MPEG4_MAIN   3

Definition at line 2563 of file avcodec.h.

#define FF_PROFILE_MPEG4_N_BIT   4

Definition at line 2564 of file avcodec.h.

#define FF_PROFILE_MPEG4_SCALABLE_TEXTURE   5

Definition at line 2565 of file avcodec.h.

#define FF_PROFILE_MPEG4_SIMPLE   0

Definition at line 2560 of file avcodec.h.

#define FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION   6

Definition at line 2566 of file avcodec.h.

#define FF_PROFILE_MPEG4_SIMPLE_SCALABLE   1

Definition at line 2561 of file avcodec.h.

#define FF_PROFILE_MPEG4_SIMPLE_STUDIO   14

Definition at line 2574 of file avcodec.h.

#define FF_PROFILE_RESERVED   -100

Definition at line 2518 of file avcodec.h.

#define FF_PROFILE_UNKNOWN   -99

Definition at line 2517 of file avcodec.h.

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

#define FF_PROFILE_VC1_ADVANCED   3

Definition at line 2558 of file avcodec.h.

#define FF_PROFILE_VC1_COMPLEX   2

Definition at line 2557 of file avcodec.h.

#define FF_PROFILE_VC1_MAIN   1

Definition at line 2556 of file avcodec.h.

#define FF_PROFILE_VC1_SIMPLE   0

Definition at line 2555 of file avcodec.h.

#define FF_QSCALE_TYPE_H264   2

Definition at line 889 of file avcodec.h.

Referenced by decode_postinit().

#define FF_QSCALE_TYPE_MPEG1   0

Definition at line 887 of file avcodec.h.

#define FF_QSCALE_TYPE_MPEG2   1

Definition at line 888 of file avcodec.h.

Referenced by slice_end().

#define FF_QSCALE_TYPE_VP56   3

Definition at line 890 of file avcodec.h.

Referenced by ff_vp56_decode_frame().

#define FF_RC_STRATEGY_XVID   1

Definition at line 1579 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 902 of file avcodec.h.

#define FF_SI_TYPE   AV_PICTURE_TYPE_SI

Switching Intra.

Definition at line 903 of file avcodec.h.

#define FF_SP_TYPE   AV_PICTURE_TYPE_SP

Switching Predicted.

Definition at line 904 of file avcodec.h.

#define FF_THREAD_FRAME   1

Decode more than one frame at once.

Definition at line 3162 of file avcodec.h.

Referenced by avcodec_decode_video2(), avcodec_flush_buffers(), avcodec_open2(), await_reference_mb_row(), decode_nal_units(), decode_slice_header(), ff_h263_decode_frame(), ff_rv34_decode_frame(), ff_thread_finish_setup(), ff_thread_free(), ff_thread_get_buffer(), ff_thread_init(), ff_thread_release_buffer(), field_end(), finish_frame(), hl_motion(), mimic_decode_frame(), mpeg_field_start(), MPV_common_end(), MPV_decode_mb_internal(), MPV_frame_start(), render_slice(), rv34_decode_mv(), rv34_decode_slice(), rv34_mc(), slice_end(), validate_thread_parameters(), video_get_buffer(), and vp3_draw_horiz_band().

#define FF_THREAD_SLICE   2

Decode more than one part of a single frame at once.

Definition at line 3163 of file avcodec.h.

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

#define MB_TYPE_16x16   0x0008

Definition at line 838 of file avcodec.h.

Referenced by decode_mb_skip(), ff_er_frame_end(), ff_h263_decode_mb(), ff_h263_update_motion_val(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_mpeg4_set_direct_mv(), fill_decode_caches(), filter_mb_dir(), 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(), pred_temp_direct_motion(), preview_obmc(), svq3_decode_mb(), vc1_decode_b_mb_intfi(), vc1_decode_p_mb(), and vc1_decode_p_mb_intfi().

#define MB_TYPE_16x8   0x0010

Definition at line 839 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 840 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 841 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 844 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 855 of file avcodec.h.

Referenced by mpeg_decode_mb().

#define MB_TYPE_DIRECT2   0x0100

Definition at line 843 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 845 of file avcodec.h.

Referenced by mpeg4_decode_mb(), and mpeg4_decode_partition_a().

#define MB_TYPE_INTERLACED   0x0080

Definition at line 842 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(), pred_spatial_direct_motion(), and pred_temp_direct_motion().

#define MB_TYPE_INTRA16x16   0x0002

Definition at line 836 of file avcodec.h.

Referenced by decode_cabac_intra_mb_type(), rv34_decode_intra_mb_header(), and svq3_decode_mb().

#define MB_TYPE_INTRA4x4   0x0001

Definition at line 835 of file avcodec.h.

Referenced by ff_er_frame_end(), and svq3_decode_mb().

#define MB_TYPE_INTRA_PCM   0x0004

Definition at line 837 of file avcodec.h.

Referenced by decode_cabac_intra_mb_type().

#define MB_TYPE_L0   (MB_TYPE_P0L0 | MB_TYPE_P1L0)

Definition at line 851 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 853 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 852 of file avcodec.h.

Referenced by rv34_pred_mv_b().

#define MB_TYPE_P0L0   0x1000

Definition at line 847 of file avcodec.h.

Referenced by decode_mb_skip(), and pred_temp_direct_motion().

#define MB_TYPE_P0L1   0x4000

Definition at line 849 of file avcodec.h.

Referenced by pred_temp_direct_motion().

#define MB_TYPE_P1L0   0x2000

Definition at line 848 of file avcodec.h.

Referenced by decode_mb_skip(), and pred_spatial_direct_motion().

#define MB_TYPE_P1L1   0x8000

Definition at line 850 of file avcodec.h.

Referenced by pred_spatial_direct_motion().

#define MB_TYPE_QUANT   0x00010000

Definition at line 854 of file avcodec.h.

Referenced by mpeg_decode_mb().

#define MB_TYPE_SKIP   0x0800

Definition at line 846 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(), vc1_decode_p_mb(), and vc1_decode_p_mb_intfr().

#define PARSER_FLAG_COMPLETE_FRAMES   0x0001

Definition at line 4567 of file avcodec.h.

Referenced by 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(), read_frame_internal(), and vc1_parse().

#define PARSER_FLAG_FETCHED_OFFSET   0x0004

Set if the parser has a valid file offset.

Definition at line 4570 of file avcodec.h.

Referenced by av_parser_parse2().

#define PARSER_FLAG_ONCE   0x0002

Definition at line 4568 of file avcodec.h.

Referenced by h264_parse(), and read_frame_internal().

#define SAMPLE_FMT_DBL   AV_SAMPLE_FMT_DBL

Definition at line 452 of file avcodec.h.

#define SAMPLE_FMT_FLT   AV_SAMPLE_FMT_FLT

Definition at line 451 of file avcodec.h.

#define SAMPLE_FMT_NB   AV_SAMPLE_FMT_NB

Definition at line 453 of file avcodec.h.

#define SAMPLE_FMT_NONE   AV_SAMPLE_FMT_NONE

Definition at line 447 of file avcodec.h.

#define SAMPLE_FMT_S16   AV_SAMPLE_FMT_S16

Definition at line 449 of file avcodec.h.

#define SAMPLE_FMT_S32   AV_SAMPLE_FMT_S32

Definition at line 450 of file avcodec.h.

#define SAMPLE_FMT_U8   AV_SAMPLE_FMT_U8

Definition at line 448 of file avcodec.h.

#define SampleFormat   AVSampleFormat

Definition at line 445 of file avcodec.h.

#define SLICE_FLAG_ALLOW_FIELD   0x0002

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

Definition at line 2298 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 2299 of file avcodec.h.

#define SLICE_FLAG_CODED_ORDER   0x0001

draw_horiz_band() is called in coded order instead of display

Definition at line 2297 of file avcodec.h.

Referenced by ff_draw_horiz_band().

#define X264_PART_B8X8   0x100

Definition at line 2780 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_I4X4   0x001

Definition at line 2776 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_I8X8   0x002

Definition at line 2777 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_P4X4   0x020

Definition at line 2779 of file avcodec.h.

Referenced by X264_init().

#define X264_PART_P8X8   0x010

Definition at line 2778 of file avcodec.h.

Referenced by X264_init().

Typedef Documentation

typedef struct AVPaletteControl attribute_deprecated

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

Deprecated:
Use AVPacket to send palette changes instead. This is totally broken.

typedef struct AVCodecDefault AVCodecDefault

Definition at line 3254 of file avcodec.h.

typedef struct ReSampleContext ReSampleContext

Definition at line 3609 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 621 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 596 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 552 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 584 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_YCGCO 
AVCOL_SPC_NB  Not part of ABI.

Definition at line 572 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_SMPTE240M 
AVCOL_TRC_NB  Not part of ABI.

Definition at line 563 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 541 of file avcodec.h.

enum AVFieldOrder

Enumerator:
AV_FIELD_UNKNOWN 
AV_FIELD_PROGRESSIVE 
AV_FIELD_TT 
AV_FIELD_BB 
AV_FIELD_TB 
AV_FIELD_BT 

Definition at line 1363 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 4849 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 611 of file avcodec.h.

enum AVPacketSideDataType

Enumerator:
AV_PKT_DATA_PALETTE 
AV_PKT_DATA_NEW_EXTRADATA 
AV_PKT_DATA_PARAM_CHANGE 

Definition at line 913 of file avcodec.h.

enum AVSideDataParamChangeFlags

An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows: u32le param_flags if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) s32le channel_count if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) u64le channel_layout if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) s32le sample_rate if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) s32le width s32le height.

Enumerator:
AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT 
AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT 
AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE 
AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS 

Definition at line 999 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 3468 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. Give it a value which when taken as ASCII is recognized uniquely by a human as this specific codec. This ensures that 2 forks can independantly add CodecIDs without producing conflicts.

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_WMV3IMAGE 
CODEC_ID_VC1IMAGE 
CODEC_ID_G723_1_DEPRECATED 
CODEC_ID_G729_DEPRECATED 
CODEC_ID_UTVIDEO_DEPRECATED 
CODEC_ID_BMV_VIDEO 
CODEC_ID_VBLE 
CODEC_ID_DXTORY 
CODEC_ID_V410 
CODEC_ID_XWD 
CODEC_ID_Y41P 
CODEC_ID_UTVIDEO 
CODEC_ID_ESCAPE130 
CODEC_ID_AVRP 
CODEC_ID_G2M 
CODEC_ID_V308 
CODEC_ID_YUV4 
CODEC_ID_FIRST_AUDIO  A dummy id pointing at the start of audio codecs.
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_PCM_S8_PLANAR 
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_ADPCM_IMA_APC 
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_BMV_AUDIO 
CODEC_ID_G729 
CODEC_ID_G723_1 
CODEC_ID_FFWAVESYNTH 
CODEC_ID_8SVX_RAW 
CODEC_ID_FIRST_SUBTITLE  A dummy ID pointing at the start of subtitle codecs.
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_FIRST_UNKNOWN  A dummy ID pointing at the start of various fake codecs.
CODEC_ID_TTF 
CODEC_ID_BINTEXT 
CODEC_ID_XBIN 
CODEC_ID_IDF 
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_MPEG4SYSTEMS  _FAKE_ codec to indicate a MPEG-4 Systems stream (only used by libavformat)
CODEC_ID_FFMETADATA  Dummy codec for streams containing only metadata information.

Definition at line 84 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 528 of file avcodec.h.

Function Documentation

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

Definition at line 279 of file resample.c.

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 415 of file resample.c.

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 occurred

Definition at line 198 of file resample.c.

void av_bitstream_filter_close ( AVBitStreamFilterContext *  bsf  ) 

Definition at line 50 of file bitstream_filter.c.

Referenced by exit_program(), Stagefright_close(), Stagefright_init(), and 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(), Stagefright_decode_frame(), and write_frame().

AVBitStreamFilterContext* av_bitstream_filter_init ( const char *  name  ) 

Definition at line 35 of file bitstream_filter.c.

Referenced by init(), new_output_stream(), and Stagefright_init().

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 105 of file utils.c.

Referenced by codec_child_class_next(), opt_codecs(), and show_codec_opts().

void av_destruct_packet ( AVPacket *  pkt  ) 

Default packet destructor.

Definition at line 43 of file avpacket.c.

Referenced by a64_write_trailer(), av_dup_packet(), av_new_packet(), av_packet_merge_side_data(), do_streamcopy(), dshow_read_close(), matroska_merge_packets(), mkv_write_trailer(), new_pes_packet(), prepare_packet(), qt_rtp_parse_packet(), read_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 27 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 126 of file avpacket.c.

Referenced by 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 85 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(), mp_decode_frame(), parse_picture_segment(), pmp_packet(), spdif_header_dts4(), spdif_write_packet(), submit_packet(), svq3_decode_frame(), truemotion1_decode_header(), and truemotion1_decode_init().

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

Same behaviour av_fast_malloc but the buffer has additional FF_INPUT_PADDING_SIZE at the end which will will always be 0.

In addition the whole buffer will initially and after resizes be 0-initialized so that no uninitialized data will ever appear.

Definition at line 90 of file utils.c.

Referenced by decode_frame(), ff_mjpeg_find_marker(), mimic_decode_frame(), mpc7_decode_frame(), and tqi_decode_frame().

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 56 of file utils.c.

Referenced by caf_write_packet(), commit_slices(), decode_frame(), decode_slice(), 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 156 of file avpacket.c.

Referenced by adx_read_packet(), amr_read_packet(), applehttp_read_seek(), asf_read_header(), asf_read_pts(), asf_reset_header(), asfrtp_parse_packet(), audio_decode_frame(), audio_read_packet(), av_get_packet(), av_interleaved_write_frame(), av_packet_merge_side_data(), av_read_packet(), av_write_trailer(), avformat_free_context(), avi_read_close(), avs_read_video_packet(), cin_read_packet(), dfa_read_packet(), do_streamcopy(), dxa_read_packet(), encode_audio_frame(), estimate_timings_from_pts(), 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(), g723_1_read_packet(), gsm_read_packet(), http_prepare_data(), ingenient_read_packet(), interleave_packet(), load_ipmovie_packet(), lxf_read_packet(), main(), matroska_clear_queue(), mmf_read_packet(), modplug_read_packet(), mpc_read_packet(), mpc_read_seek(), mpegts_get_dts(), mpegts_raw_read_packet(), mxf_interleave_get_packet(), nc_read_packet(), nsv_read_close(), nuv_packet(), packet_queue_flush(), pulse_read_packet(), qt_rtp_parse_packet(), read_frame_internal(), 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_frame_generic(), seek_subtitle(), show_packets(), spdif_read_packet(), str_read_close(), str_read_packet(), stream_component_close(), subtitle_thread(), thp_read_packet(), transcode(), vid_read_packet(), video_thread(), vmd_read_packet(), vqf_read_packet(), wc3_read_close(), write_frame(), 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 1794 of file utils.c.

Referenced by adpcm_encode_init(), aiff_write_header(), au_read_header(), au_read_packet(), avcodec_encode_audio(), avformat_write_header(), caf_write_header(), 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(), oma_read_header(), pcm_decode_frame(), pcm_decode_init(), pcm_encode_frame(), pcm_encode_init(), pcm_read_seek(), pulse_read_header(), raw_read_packet(), read_header(), rso_read_header(), rso_read_packet(), show_stream(), smjpeg_write_header(), 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 1844 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 1581 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 1789 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 1690 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 91 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 1911 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 51 of file avpacket.c.

Referenced by audio_decode_example(), av_interleave_packet_per_dts(), av_new_packet(), av_read_packet(), avcodec_encode_audio(), avcodec_encode_audio2(), avi_write_packet(), avpriv_dv_produce_packet(), dc1394_read_header(), do_streamcopy(), do_subtitle_out(), do_video_out(), dv_extract_audio_info(), encode_audio_frame(), ff_alloc_packet(), ff_mov_add_hinted_packet(), ff_store_parser_state(), flush_encoders(), main(), mkv_write_header(), mpegts_get_dts(), mxf_interleave_get_packet(), new_pes_packet(), output_packet(), prepare_packet(), qt_rtp_parse_packet(), read_frame_internal(), 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 1928 of file utils.c.

Referenced by do_exit(), and main().

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

Referenced by alac_decode_init(), au_read_header(), av_log_missing_feature(), avpriv_adx_decode_header(), cinaudio_decode_init(), cinepak_decode(), cook_decode_init(), dca_exss_parse_header(), decode_band_hdr(), decode_bytes(), decode_channel_transform(), decode_frame(), decode_frame_headers(), decode_init(), decode_scalefactors(), decode_slice_header(), decode_subframe(), determine_bitrate(), execute_code(), ff_mov_read_chan(), ff_parse_mpeg2_descriptor(), imc_decode_init(), mov_read_mdhd(), mpc7_decode_init(), mtv_read_header(), mxf_read_primer_pack(), oma_read_header(), ptx_decode_frame(), read_header(), read_major_sync(), rso_read_header(), save_bits(), smjpeg_read_header(), spdif_header_dts(), spdif_header_truehd(), spdif_read_packet(), truemotion1_decode_header(), truespeech_decode_init(), ws_snd_decode_init(), wsaud_read_header(), wsvqa_read_header(), xmv_read_header(), xwd_decode_frame(), and xwma_read_header().

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

Log 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 1875 of file utils.c.

Referenced by aac_adtstoasc_filter(), amrnb_decode_frame(), amrwb_decode_frame(), decode_audio_block(), decode_frame_header(), decode_ga_specific_config(), decode_ics(), decode_seq_header(), decode_slice_header(), decode_subframe(), ff_eac3_parse_header(), ff_h263_decode_frame(), ff_rv34_decode_frame(), flashsv_decode_frame(), latm_decode_audio_specific_config(), mpc8_decode_init(), parse_adts_frame_header(), parse_fmtp(), parse_MP4SLDescrTag(), qt_rtp_parse_packet(), read_sbr_extension(), read_stream_mux_config(), rv10_decode_init(), smc_decode_stream(), spdif_get_offset_and_codec(), spdif_read_packet(), synth_superframe(), tta_decode_init(), vc1_parse_frame_header_adv(), and video_get_buffer().

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 65 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(), bmv_read_packet(), callback(), cin_read_packet(), decode_frame(), dxa_read_packet(), fbdev_read_packet(), ff_alloc_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(), g723_1_read_packet(), grab_read_packet(), h263_handle_packet(), h264_handle_packet(), iff_read_packet(), ingenient_read_packet(), latm_parse_packet(), lavfi_read_packet(), load_ipmovie_packet(), lxf_read_packet(), matroska_parse_block(), microdvd_read_packet(), mmf_read_packet(), modplug_read_packet(), mpc_read_packet(), mpegts_raw_read_packet(), nut_read_packet(), nuv_packet(), ogg_read_packet(), pulse_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(), sbg_read_packet(), 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(), videostream_cb(), vmd_read_packet(), vqf_read_packet(), wsaud_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 190 of file avpacket.c.

Referenced by aac_decode_frame(), apply_param_change(), cinepak_decode_frame(), decode_frame(), decode_tag(), 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 207 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 166 of file avpacket.c.

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

int av_packet_split_side_data ( AVPacket *  pkt  ) 

Definition at line 241 of file avpacket.c.

Referenced by avcodec_decode_audio4(), and 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 do_streamcopy().

void av_parser_close ( AVCodecParserContext *  s  ) 

Definition at line 204 of file parser.c.

Referenced by av_bitstream_filter_close(), avformat_free_context(), estimate_timings_from_pts(), 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 avformat_find_stream_info(), init(), read_frame_internal(), 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 decode(), and read_frame_internal().

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 531 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 666 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 696 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 void av_register_hwaccel ( AVHWAccel *  hwaccel  ) 

Register the hardware accelerator hwaccel.

Definition at line 1902 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(), and filter_samples().

void av_resample_close ( struct AVResampleContext *  c  ) 

Definition at line 223 of file resample2.c.

Referenced by audio_resample_close(), and uninit().

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 swri_resample().

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(), and config_output().

void av_shrink_packet ( AVPacket *  pkt,
int  size 
)

Reduce packet size, correctly zeroing padding.

Parameters:
pkt packet
size new size

Definition at line 84 of file avpacket.c.

Referenced by av_append_packet(), av_get_packet(), cin_read_packet(), ff_asf_parse_packet(), ff_raw_read_partial_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 1855 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 264 of file utils.c.

Referenced by alloc_buffer().

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

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 161 of file utils.c.

Referenced by avcodec_align_dimensions(), and video_get_buffer().

attribute_deprecated 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
Deprecated:
use avcodec_alloc_context3()

Definition at line 641 of file options.c.

Referenced by config(), and vf_open().

attribute_deprecated 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 627 of file options.c.

Referenced by avcodec_alloc_context().

AVCodecContext* avcodec_alloc_context3 ( AVCodec *  codec  ) 

Allocate an AVCodecContext and set its fields to default values.

The resulting struct can be deallocated by calling avcodec_close() on it followed by av_free().

Parameters:
codec if non-NULL, allocate private data and initialize defaults for the given codec. It is illegal to then call avcodec_open2() with a different codec.
Returns:
An AVCodecContext filled with default values or NULL on failure.
See also:
avcodec_get_context_defaults

Definition at line 613 of file options.c.

Referenced by add_av_stream1(), add_codec(), audio_decode_example(), audio_encode_example(), avformat_new_stream(), config_props(), estimate_best_b_count(), ff_mov_init_hinting(), main(), mov_create_chapter_track(), video_decode_example(), and video_encode_example().

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 678 of file utils.c.

Referenced by aac_encode_init(), aacPlus_encode_init(), adpcm_encode_init(), adx_encode_init(), alac_encode_init(), alloc_picture(), amr_wb_encode_init(), audio_decode_example(), audio_decode_frame(), config(), decode_init(), encode_audio_frame(), encode_init(), Faac_encode_init(), ff_ac3_encode_init(), flac_encode_init(), libgsm_encode_init(), libopenjpeg_encode_init(), movie_common_init(), MP3lame_encode_init(), MPA_encode_init(), oggvorbis_encode_init(), pcm_encode_init(), prores_encode_init(), roq_dpcm_encode_init(), transcode_audio(), transcode_video(), utvideo_decode_init(), v308_decode_init(), v308_encode_init(), v410_decode_init(), v410_encode_init(), vble_decode_init(), video_decode_example(), video_encode_example(), video_thread(), vorbis_encode_init(), vp8_init(), xwd_decode_init(), xwd_encode_init(), y41p_decode_init(), y41p_encode_init(), yuv4_decode_init(), and yuv4_encode_init().

int avcodec_close ( AVCodecContext *  avctx  ) 

Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext itself).

Calling this function on an AVCodecContext that hasn't been opened will free the codec-specific data allocated in avcodec_alloc_context3() / avcodec_get_context_defaults3() with a non-NULL codec. Subsequent calls will do nothing.

Definition at line 1425 of file utils.c.

Referenced by audio_decode_example(), audio_encode_example(), close_audio(), close_connection(), close_video(), estimate_best_b_count(), main(), movie_common_uninit(), probe_file(), stream_component_close(), transcode(), uninit(), video_decode_example(), and video_encode_example().

const char* avcodec_configuration ( void   ) 

Return the libavcodec build-time configuration.

Definition at line 1715 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_open2() before you can use this AVCodecContext to decode/encode video/audio data.

Parameters:
dest target codec context, should be initialized with avcodec_alloc_context3(), but otherwise uninitialized
src source codec context
Returns:
AVERROR() on error (e.g. memory allocation error), 0 on success

Definition at line 646 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().

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

Wrapper function which calls avcodec_decode_audio4.

Deprecated:
Use avcodec_decode_audio4 instead.
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.

You must not provide a custom get_buffer() when using avcodec_decode_audio3(). Doing so will override it with avcodec_default_get_buffer. Use avcodec_decode_audio4() instead, which does allow the application to provide a custom get_buffer().

Note:
You might have to align the input buffer avpkt->data and output buffer samples. The alignment requirements depend on the CPU: On some CPUs it isn't necessary at all, on others it won't work at all if not aligned and on others it will work but it will have an impact on performance.
In practice, avpkt->data should have 4 byte alignment at minimum and samples should be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do).

Note:
Codecs which have the CODEC_CAP_DELAY capability set have a delay between input and output, these need to be fed with avpkt->data=NULL, avpkt->size=0 at the end to return the remaining frames.
Parameters:
avctx the codec context
[out] samples the output buffer, sample type in avctx->sample_fmt If the sample format is planar, each channel plane will be the same size, with no padding between channels.
[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 1313 of file utils.c.

int avcodec_decode_audio4 ( AVCodecContext *  avctx,
AVFrame *  frame,
int *  got_frame_ptr,
AVPacket *  avpkt 
)

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

Some decoders may support multiple frames in a single AVPacket. Such decoders would then just decode the first frame. In this case, avcodec_decode_audio4 has to be called again with an AVPacket containing the remaining data in order to decode the second frame, etc... Even if no frames are returned, the packet needs to be fed to the decoder with remaining data until it is completely consumed or an error occurs.

Warning:
The input buffer, avpkt->data 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.
Note:
You might have to align the input buffer. The alignment requirements depend on the CPU and the decoder.
Parameters:
avctx the codec context
[out] frame The AVFrame in which to store decoded audio samples. Decoders request a buffer of a particular size by setting AVFrame.nb_samples prior to calling get_buffer(). The decoder may, however, only utilize part of the buffer by setting AVFrame.nb_samples to a smaller value in the output frame.
[out] got_frame_ptr Zero if no frame could be decoded, otherwise it is non-zero.
[in] avpkt The input AVPacket containing the input buffer. At least avpkt->data and avpkt->size should be set. Some decoders might also require additional fields to be set.
Returns:
A negative error code is returned if an error occurred during decoding, otherwise the number of bytes consumed from the input AVPacket is returned.

Definition at line 1360 of file utils.c.

Referenced by audio_decode_example(), audio_decode_frame(), avcodec_decode_audio3(), get_decoded_frame(), transcode_audio(), 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 1390 of file utils.c.

Referenced by subtitle_thread(), and transcode_subtitles().

int avcodec_decode_video2 ( AVCodecContext *  avctx,
AVFrame *  picture,
int *  got_picture_ptr,
const 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:
Codecs which have the CODEC_CAP_DELAY capability set have a delay between input and output, these need to be fed with avpkt->data=NULL, avpkt->size=0 at the end to return the remaining frames.
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 1256 of file utils.c.

Referenced by get_decoded_frame(), get_video_frame(), main(), transcode_video(), 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 642 of file utils.c.

Referenced by avcodec_get_context_defaults3(), 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_defaults3().

void avcodec_default_free_buffers ( AVCodecContext *  s  ) 

Definition at line 1774 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 551 of file utils.c.

Referenced by alloc_frame_buffer(), avcodec_decode_audio3(), avcodec_get_context_defaults3(), ff_thread_get_buffer(), frame_worker_thread(), and submit_packet().

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

Definition at line 662 of file utils.c.

Referenced by avcodec_get_context_defaults3().

int avcodec_default_reget_buffer ( AVCodecContext *  s,
AVFrame *  pic 
)

Definition at line 599 of file utils.c.

Referenced by avcodec_get_context_defaults3().

void avcodec_default_release_buffer ( AVCodecContext *  s,
AVFrame *  pic 
)

Definition at line 563 of file utils.c.

Referenced by avcodec_decode_audio3(), avcodec_get_context_defaults3(), codec_release_buffer(), and free_frame_buffer().

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

Encode an audio frame from samples into buf.

Deprecated:
Use avcodec_encode_audio2 instead.
Note:
The output buffer should be at least FF_MIN_BUFFER_SIZE bytes large. However, for codecs with avctx->frame_size equal to 0 (e.g. PCM) 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_size*channels, both of which are defined in avctx. For codecs which have avctx->frame_size equal to 0 (e.g. PCM) the number of samples read from samples is equal to: buf_size * 8 / (avctx->channels * av_get_bits_per_sample(avctx->codec_id)) This also implies that av_get_bits_per_sample() must not return 0 for these codecs.
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 1073 of file utils.c.

Referenced by audio_encode_example(), and write_audio_frame().

int avcodec_encode_audio2 ( AVCodecContext *  avctx,
AVPacket *  avpkt,
const AVFrame *  frame,
int *  got_packet_ptr 
)

Encode a frame of audio.

Takes input samples from frame and writes the next output packet, if available, to avpkt. The output packet does not necessarily contain data for the most recent frame, as encoders can delay, split, and combine input frames internally as needed.

Parameters:
avctx codec context
avpkt output AVPacket. The user can supply an output buffer by setting avpkt->data and avpkt->size prior to calling the function, but if the size of the user-provided data is not large enough, encoding will fail. All other AVPacket fields will be reset by the encoder using av_init_packet(). If avpkt->data is NULL, the encoder will allocate it. The encoder will set avpkt->size to the size of the output packet.
[in] frame AVFrame containing the raw audio data to be encoded. May be NULL when flushing an encoder that has the CODEC_CAP_DELAY capability set. There are 2 codec capabilities that affect the allowed values of frame->nb_samples. If CODEC_CAP_SMALL_LAST_FRAME is set, then only the final frame may be smaller than avctx->frame_size, and all other frames must be equal to avctx->frame_size. If CODEC_CAP_VARIABLE_FRAME_SIZE is set, then each frame can have any number of samples. If neither is set, frame->nb_samples must be equal to avctx->frame_size for all frames.
[out] got_packet_ptr This field is set to 1 by libavcodec if the output packet is non-empty, and to 0 if it is empty. If the function returns an error, the packet can be assumed to be invalid, and the value of got_packet_ptr is undefined and should not be used.
Returns:
0 on success, negative error code on failure

Definition at line 957 of file utils.c.

Referenced by encode_audio_frame().

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

Definition at line 1168 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 1149 of file utils.c.

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

int avcodec_fill_audio_frame ( AVFrame *  frame,
int  nb_channels,
enum AVSampleFormat  sample_fmt,
const uint8_t *  buf,
int  buf_size,
int  align 
)

Fill audio frame data and linesize.

AVFrame extended_data channel pointers are allocated if necessary for planar audio.

Parameters:
frame the AVFrame frame->nb_samples must be set prior to calling the function. This function fills in frame->data, frame->extended_data, frame->linesize[0].
nb_channels channel count
sample_fmt sample format
buf buffer to use for frame data
buf_size size of buffer
align plane size sample alignment
Returns:
0 on success, negative error code on failure

Definition at line 292 of file utils.c.

Referenced by audio_get_buffer(), avcodec_encode_audio(), and encode_audio_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.

Note, only the first 64 pixel formats will fit in pix_fmt_mask.

 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 474 of file imgconvert.c.

enum PixelFormat avcodec_find_best_pix_fmt2 ( enum PixelFormat  dst_pix_fmt1,
enum PixelFormat  dst_pix_fmt2,
enum PixelFormat  src_pix_fmt,
int  has_alpha,
int *  loss_ptr 
)

Find the best pixel format to convert to given a certain source pixel format and a selection of two destination pixel formats.

When converting from one pixel format to another, information loss may occur. For example, when converting from RGB24 to GRAY, the color information will be lost. Similarly, other losses occur when converting from some formats to other formats. avcodec_find_best_pix_fmt2() selects which of the given pixel formats should be used to suffer the least amount of loss.

If one of the destination formats is PIX_FMT_NONE the other pixel format (if valid) will be returned.

 src_pix_fmt = PIX_FMT_YUV420P;
 dst_pix_fmt1= PIX_FMT_RGB24;
 dst_pix_fmt2= PIX_FMT_GRAY8;
 dst_pix_fmt3= PIX_FMT_RGB8;
 loss= FF_LOSS_CHROMA; // don't care about chroma loss, so chroma loss will be ignored.
 dst_pix_fmt = avcodec_find_best_pix_fmt2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, alpha, &loss);
 dst_pix_fmt = avcodec_find_best_pix_fmt2(dst_pix_fmt, dst_pix_fmt3, src_pix_fmt, alpha, &loss);

Parameters:
[in] dst_pix_fmt1 One of the two destination pixel formats to choose from
[in] dst_pix_fmt2 The other of the two destination pixel formats to choose from
[in] src_pix_fmt Source pixel format
[in] has_alpha Whether the source pixel format alpha channel is used.
[in,out] loss_ptr Combination of loss flags. In: selects which of the losses to ignore, i.e. NULL or value of zero means we care about all losses. Out: the loss that occurs when converting from src to selected dst pixel format.
Returns:
The best pixel format to convert to or -1 if none was found.

Definition at line 491 of file imgconvert.c.

Referenced by avcodec_find_best_pix_fmt(), and choose_pixel_fmt().

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 1508 of file utils.c.

Referenced by add_input_streams(), assert_codec_experimental(), audio_decode_example(), av_find_best_stream(), avcodec_get_name(), avcodec_get_type(), avcodec_string(), avformat_find_stream_info(), choose_decoder(), movie_common_init(), open_input_file(), setup_find_stream_info_opts(), stream_component_open(), 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 1525 of file utils.c.

Referenced by find_codec_or_die(), stream_component_open(), and v4l2_read_header().

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 1477 of file utils.c.

Referenced by add_video_stream(), asf_write_header1(), assert_codec_experimental(), audio_encode_example(), avcodec_get_name(), avcodec_get_type(), avcodec_string(), choose_encoder(), compute_status(), config(), estimate_best_b_count(), ffserver_opt_preset(), list_formats(), open_audio(), open_video(), read_ffserver_streams(), transcode_init(), 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 1494 of file utils.c.

Referenced by find_codec_or_die(), 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 1726 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 286 of file imgconvert.c.

Referenced by alloc_buffer(), dirac_decode_data_unit(), encode_init(), ff_print_debug_info(), j2kenc_init(), load_input_picture(), MPV_common_init(), MPV_encode_init(), video_get_buffer(), and vp3_decode_init().

const AVClass* avcodec_get_class ( void   ) 

Get the AVClass for AVCodecContext.

It can be used in combination with AV_OPT_SEARCH_FAKE_OBJ for examining options.

See also:
av_opt_find().

Definition at line 703 of file options.c.

Referenced by filter_codec_opts(), opt_default(), opt_help(), and show_codec_opts().

attribute_deprecated 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.
Deprecated:
use avcodec_get_context_defaults3

Definition at line 637 of file options.c.

attribute_deprecated 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 554 of file options.c.

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

int avcodec_get_context_defaults3 ( AVCodecContext *  s,
AVCodec *  codec 
)

Set the fields of the given AVCodecContext to default values corresponding to the given codec (defaults may be codec-dependent).

Do not call this function if a non-NULL codec has been passed to avcodec_alloc_context3() that allocated this AVCodecContext. If codec is non-NULL, it is illegal to call avcodec_open2() with a different codec on this AVCodecContext.

Definition at line 561 of file options.c.

Referenced by add_video_stream(), avcodec_alloc_context3(), avcodec_get_context_defaults2(), and new_output_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 147 of file utils.c.

const AVClass* avcodec_get_frame_class ( void   ) 

Get the AVClass for AVFrame.

It can be used in combination with AV_OPT_SEARCH_FAKE_OBJ for examining options.

See also:
av_opt_find().

Definition at line 727 of file options.c.

Referenced by get_video_frame(), and transcode_video().

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 668 of file utils.c.

Referenced by a64multi_init_encoder(), aac_decode_init(), aasc_decode_init(), ac3_decode_init(), adpcm_decode_init(), adx_decode_init(), alac_decode_init(), amrnb_decode_init(), amrwb_decode_init(), ape_decode_init(), atrac1_decode_init(), atrac3_decode_init(), audio_decode_example(), audio_decode_frame(), aura_decode_init(), avcodec_alloc_frame(), avcodec_encode_audio(), avs_decode_init(), bethsoftvid_decode_init(), bfi_decode_init(), bmp_decode_init(), bmp_encode_init(), bmv_aud_decode_init(), cdg_init_frame(), cinaudio_decode_init(), cinepak_decode_init(), cinvideo_decode_init(), cmv_decode_init(), common_init(), cook_decode_init(), cyuv_decode_init(), dca_decode_init(), decode_init(), decoder_init(), dirac_decode_data_unit(), dnxhd_decode_init(), do_video_resample(), dpcm_decode_init(), eightsvx_decode_init(), encode_audio_frame(), encode_init(), escape124_decode_frame(), escape124_decode_init(), estimate_best_b_count(), ff_mjpeg_decode_init(), ff_pnm_init(), ff_vp56_init(), flac_decode_init(), flashsv_decode_init(), flic_decode_init(), frame_worker_thread(), g722_decode_init(), g723_1_decode_init(), gif_decode_init(), gsm_init(), idcin_decode_init(), imc_decode_init(), ipvideo_decode_init(), ir2_decode_init(), j2kdec_init(), libcelt_dec_init(), libgsm_decode_init(), libopenjpeg_decode_init(), libspeex_decode_init(), mace_decode_init(), main(), mdec_common_init(), mlp_decode_init(), mm_decode_init(), mp_decode_init(), mpc7_decode_init(), mpc8_decode_init(), MPV_common_init(), msrle_decode_init(), msvideo1_decode_init(), pcm_bluray_decode_init(), pcm_decode_init(), pcx_encode_init(), pcx_init(), png_dec_init(), png_enc_init(), ptx_init(), qcelp_decode_init(), qdm2_decode_init(), qtrle_decode_init(), ra144_decode_init(), ra288_decode_init(), rl2_decode_init(), roq_decode_init(), rpza_decode_init(), s302m_decode_init(), seqvideo_decode_init(), sgi_init(), shorten_decode_init(), show_packets(), sipr_decoder_init(), smc_decode_init(), smka_decode_init(), sunrast_init(), targa_encode_init(), targa_init(), tgv_decode_init(), tiff_init(), tmv_decode_init(), transcode_audio(), transcode_video(), truemotion1_decode_init(), truespeech_decode_init(), try_decode_frame(), tta_decode_init(), twin_decode_init(), txd_init(), ulti_decode_init(), vmdaudio_decode_init(), vmdvideo_decode_init(), vorbis_decode_init(), vqa_decode_init(), wavesynth_init(), wavpack_decode_init(), wma_decode_init(), wmavoice_decode_init(), ws_snd_decode_init(), xan_decode_init(), and yop_decode_init().

const char* avcodec_get_name ( enum CodecID  id  ) 

Get the name of a codec.

Returns:
a static string identifying the codec; never NULL

Definition at line 1562 of file utils.c.

Referenced by avcodec_string(), flv_write_packet(), init_input_stream(), read_frame_internal(), rtp_write_header(), and transcode_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 (maximum loss for an invalid dst_pix_fmt).

Definition at line 396 of file imgconvert.c.

Referenced by avcodec_find_best_pix_fmt2().

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 293 of file imgconvert.c.

enum AVMediaType avcodec_get_type ( enum CodecID  codec_id  ) 

Get the type of the given codec.

Definition at line 2012 of file utils.c.

Referenced by mkv_query_codec().

attribute_deprecated void avcodec_init ( void   ) 

Deprecated:
this function is called automatically from avcodec_register() and avcodec_register_all(), there is no need to call it manually

Definition at line 113 of file utils.c.

Referenced by avcodec_register(), and main().

int avcodec_is_open ( AVCodecContext *  s  ) 

Returns:
a positive value if s is open (i.e. avcodec_open2() was called on it with no corresponding avcodec_close()), 0 otherwise.

Definition at line 2032 of file utils.c.

Referenced by avcodec_close(), avcodec_copy_context(), avcodec_open2(), and try_decode_frame().

const char* avcodec_license ( void   ) 

Return the libavcodec license.

Definition at line 1720 of file utils.c.

attribute_deprecated 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_context3(codec);

 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_context3, avcodec_find_decoder, avcodec_find_encoder, avcodec_close
Deprecated:
use avcodec_open2

Definition at line 695 of file utils.c.

Referenced by audio_decode_example(), audio_encode_example(), config(), open_audio(), open_input_file(), open_video(), 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_context3().

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_context3(codec);

 if (avcodec_open2(context, codec, opts) < 0)
     exit(1);

Parameters:
avctx The context to initialize.
codec The codec to open this context for. If a non-NULL codec has been previously passed to avcodec_alloc_context3() or avcodec_get_context_defaults3() for this context, then this parameter MUST be either NULL or equal to the previously passed codec.
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 701 of file utils.c.

Referenced by avcodec_open(), avformat_find_stream_info(), estimate_best_b_count(), init_input_stream(), movie_common_init(), open_input_file(), stream_component_open(), transcode_init(), and try_decode_frame().

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 151 of file raw.c.

Referenced by raw_init_encoder(), and v4l2_read_header().

void avcodec_register ( AVCodec *  codec  ) 

Register the codec codec and initialize libavcodec.

Warning:
either this function or avcodec_register_all() must be called before any other libavcodec functions.
See also:
avcodec_register_all()

Definition at line 134 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 152 of file utils.c.

Referenced by apply_param_change(), av_mpeg4_decode_header(), avcodec_open2(), avpriv_dirac_parse_sequence_header(), avs_decode_init(), cmv_process_header(), decode_frame(), decode_frame_headers(), decode_init(), decode_sequence_header_adv(), decode_slice_header(), dnxhd_decode_frame(), execute_code(), ff_h263_decode_frame(), ff_ivi_decode_frame(), ff_mjpeg_decode_sof(), ff_rv34_decode_frame(), ff_vp56_decode_frame(), gif_decode_frame(), h261_decode_frame(), init_image(), libopenjpeg_decode_frame(), mpeg_decode_postinit(), mpegvideo_extract_headers(), parse_presentation_segment(), pcx_decode_frame(), ptx_decode_frame(), rv20_decode_picture_header(), 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(), vc1_decode_entry_point(), vc1_decode_sequence_header(), 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 1596 of file utils.c.

Referenced by dump_stream_format().

attribute_deprecated int avcodec_thread_init ( AVCodecContext *  s,
int  thread_count 
)

Deprecated:
Set s->thread_count before calling avcodec_open2() instead of calling this.

Definition at line 2005 of file utils.c.

unsigned avcodec_version ( void   ) 

Return the LIBAVCODEC_VERSION_INT constant.

Definition at line 1703 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 625 of file imgconvert.c.

Referenced by do_video_resample(), 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 913 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 304 of file imgconvert.c.

Referenced by alloc_picture(), avpicture_get_size(), copy_frame(), do_streamcopy(), libdirac_decode_frame(), libschroedinger_decode_frame(), 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 638 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 361 of file imgconvert.c.

Referenced by alloc_picture(), avpicture_layout(), dc1394_read_header(), lavfi_read_packet(), 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(), utvideo_decode_init(), v4l2_read_header(), vble_decode_init(), 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 318 of file imgconvert.c.

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

void avsubtitle_free ( AVSubtitle *  sub  ) 

Free all allocated data in the given subtitle struct.

Parameters:
sub AVSubtitle to free.

Definition at line 1405 of file utils.c.

Referenced by free_subpicture(), and transcode_subtitles().

attribute_deprecated 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 783 of file imgconvert.c.

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