Libavcodec external API header. More...

#include <errno.h>
#include "libavutil/samplefmt.h"
#include "libavutil/attributes.h"
#include "libavutil/avutil.h"
#include "libavutil/buffer.h"
#include "libavutil/cpu.h"
#include "libavutil/channel_layout.h"
#include "libavutil/dict.h"
#include "libavutil/frame.h"
#include "libavutil/hwcontext.h"
#include "libavutil/log.h"
#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
#include "version.h"

Classes
struct	AVCodecDescriptor
	This struct describes the properties of a single codec described by an AVCodecID. More...

struct	RcOverride

struct	AVPanScan
	Pan Scan area. More...

struct	AVCPBProperties
	This structure describes the bitrate properties of an encoded bitstream. More...

struct	AVPacketSideData

struct	AVPacket
	This structure stores compressed data. More...

struct	AVCodecContext
	main external API structure. More...

struct	AVProfile
	AVProfile. More...

struct	AVCodecHWConfig

struct	AVCodec
	AVCodec. More...

struct	AVHWAccel

struct	AVPicture
	Picture data structure. More...

struct	AVSubtitleRect

struct	AVSubtitle

struct	AVCodecParameters
	This struct describes the properties of an encoded stream. More...

struct	AVCodecParserContext

struct	AVCodecParser

struct	AVBitStreamFilterContext

struct	AVBSFContext
	The bitstream filter state. More...

struct	AVBitStreamFilter

Macros
#define	AV_CODEC_ID_IFF_BYTERUN1 AV_CODEC_ID_IFF_ILBM

#define	AV_CODEC_ID_H265 AV_CODEC_ID_HEVC

#define	AV_CODEC_PROP_INTRA_ONLY (1 << 0)
	Codec uses only intra compression. More...

#define	AV_CODEC_PROP_LOSSY (1 << 1)
	Codec supports lossy compression. More...

#define	AV_CODEC_PROP_LOSSLESS (1 << 2)
	Codec supports lossless compression. More...

#define	AV_CODEC_PROP_REORDER (1 << 3)
	Codec supports frame reordering. More...

#define	AV_CODEC_PROP_BITMAP_SUB (1 << 16)
	Subtitle codec is bitmap based Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field.

#define	AV_CODEC_PROP_TEXT_SUB (1 << 17)
	Subtitle codec is text based. More...

#define	AV_INPUT_BUFFER_PADDING_SIZE 64
	Required number of additionally allocated bytes at the end of the input bitstream for decoding. More...

#define	AV_INPUT_BUFFER_MIN_SIZE 16384
	minimum encoding buffer size Used to avoid some checks during header writing.

#define	AV_CODEC_FLAG_UNALIGNED (1 << 0)
	Allow decoders to produce frames with data planes that are not aligned to CPU requirements (e.g. More...

#define	AV_CODEC_FLAG_QSCALE (1 << 1)
	Use fixed qscale.

#define	AV_CODEC_FLAG_4MV (1 << 2)
	4 MV per MB allowed / advanced prediction for H.263.

#define	AV_CODEC_FLAG_OUTPUT_CORRUPT (1 << 3)
	Output even those frames that might be corrupted.

#define	AV_CODEC_FLAG_QPEL (1 << 4)
	Use qpel MC.

#define	AV_CODEC_FLAG_PASS1 (1 << 9)
	Use internal 2pass ratecontrol in first pass mode.

#define	AV_CODEC_FLAG_PASS2 (1 << 10)
	Use internal 2pass ratecontrol in second pass mode.

#define	AV_CODEC_FLAG_LOOP_FILTER (1 << 11)
	loop filter.

#define	AV_CODEC_FLAG_GRAY (1 << 13)
	Only decode/encode grayscale.

#define	AV_CODEC_FLAG_PSNR (1 << 15)
	error[?] variables will be set during encoding.

#define	AV_CODEC_FLAG_TRUNCATED (1 << 16)
	Input bitstream might be truncated at a random location instead of only at frame boundaries.

#define	AV_CODEC_FLAG_INTERLACED_DCT (1 << 18)
	Use interlaced DCT.

#define	AV_CODEC_FLAG_LOW_DELAY (1 << 19)
	Force low delay.

#define	AV_CODEC_FLAG_GLOBAL_HEADER (1 << 22)
	Place global headers in extradata instead of every keyframe.

#define	AV_CODEC_FLAG_BITEXACT (1 << 23)
	Use only bitexact stuff (except (I)DCT).

#define	AV_CODEC_FLAG_AC_PRED (1 << 24)
	H.263 advanced intra coding / MPEG-4 AC prediction.

#define	AV_CODEC_FLAG_INTERLACED_ME (1 << 29)
	interlaced motion estimation

#define	AV_CODEC_FLAG_CLOSED_GOP (1U << 31)

#define	AV_CODEC_FLAG2_FAST (1 << 0)
	Allow non spec compliant speedup tricks.

#define	AV_CODEC_FLAG2_NO_OUTPUT (1 << 2)
	Skip bitstream encoding.

#define	AV_CODEC_FLAG2_LOCAL_HEADER (1 << 3)
	Place global headers at every keyframe instead of in extradata.

#define	AV_CODEC_FLAG2_DROP_FRAME_TIMECODE (1 << 13)
	timecode is in drop frame format. More...

#define	AV_CODEC_FLAG2_CHUNKS (1 << 15)
	Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.

#define	AV_CODEC_FLAG2_IGNORE_CROP (1 << 16)
	Discard cropping information from SPS.

#define	AV_CODEC_FLAG2_SHOW_ALL (1 << 22)
	Show all frames before the first keyframe.

#define	AV_CODEC_FLAG2_EXPORT_MVS (1 << 28)
	Export motion vectors through frame side data.

#define	AV_CODEC_FLAG2_SKIP_MANUAL (1 << 29)
	Do not skip samples and export skip information as frame side data.

#define	AV_CODEC_FLAG2_RO_FLUSH_NOOP (1 << 30)
	Do not reset ASS ReadOrder field on flush (subtitles decoding)

#define	AV_CODEC_CAP_DRAW_HORIZ_BAND (1 << 0)
	Decoder can use draw_horiz_band callback.

#define	AV_CODEC_CAP_DR1 (1 << 1)
	Codec uses get_buffer() for allocating buffers and supports custom allocators. More...

#define	AV_CODEC_CAP_TRUNCATED (1 << 3)

#define	AV_CODEC_CAP_DELAY (1 << 5)
	Encoder or decoder requires flushing with NULL input at the end in order to give the complete and correct output. More...

#define	AV_CODEC_CAP_SMALL_LAST_FRAME (1 << 6)
	Codec can be fed a final frame with a smaller size. More...

#define	AV_CODEC_CAP_SUBFRAMES (1 << 8)
	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. More...

#define	AV_CODEC_CAP_EXPERIMENTAL (1 << 9)
	Codec is experimental and is thus avoided in favor of non experimental encoders.

#define	AV_CODEC_CAP_CHANNEL_CONF (1 << 10)
	Codec should fill in channel configuration and samplerate instead of container.

#define	AV_CODEC_CAP_FRAME_THREADS (1 << 12)
	Codec supports frame-level multithreading.

#define	AV_CODEC_CAP_SLICE_THREADS (1 << 13)
	Codec supports slice-based (or partition-based) multithreading.

#define	AV_CODEC_CAP_PARAM_CHANGE (1 << 14)
	Codec supports changed parameters at any point.

#define	AV_CODEC_CAP_AUTO_THREADS (1 << 15)
	Codec supports avctx->thread_count == 0 (auto).

#define	AV_CODEC_CAP_VARIABLE_FRAME_SIZE (1 << 16)
	Audio encoder supports receiving a different number of samples in each call.

#define	AV_CODEC_CAP_AVOID_PROBING (1 << 17)
	Decoder is not a preferred choice for probing. More...

#define	AV_CODEC_CAP_INTRA_ONLY 0x40000000
	Codec is intra only.

#define	AV_CODEC_CAP_LOSSLESS 0x80000000
	Codec is lossless.

#define	AV_CODEC_CAP_HARDWARE (1 << 18)
	Codec is backed by a hardware implementation. More...

#define	AV_CODEC_CAP_HYBRID (1 << 19)
	Codec is potentially backed by a hardware implementation, but not necessarily. More...

#define	AV_GET_BUFFER_FLAG_REF (1 << 0)
	The decoder will keep a reference to the frame and may reuse it later.

#define	AV_PKT_DATA_QUALITY_FACTOR AV_PKT_DATA_QUALITY_STATS

#define	AV_PKT_FLAG_KEY 0x0001
	The packet contains a keyframe.

#define	AV_PKT_FLAG_CORRUPT 0x0002
	The packet content is corrupted.

#define	AV_PKT_FLAG_DISCARD 0x0004
	Flag is used to discard packets which are required to maintain valid decoder state but are not required for output and should be dropped after decoding.

#define	AV_PKT_FLAG_TRUSTED 0x0008
	The packet comes from a trusted source. More...

#define	AV_PKT_FLAG_DISPOSABLE 0x0010
	Flag is used to indicate packets that contain frames that can be discarded by the decoder. More...

#define	FF_COMPRESSION_DEFAULT -1

#define	FF_PRED_LEFT 0

#define	FF_PRED_PLANE 1

#define	FF_PRED_MEDIAN 2

#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_MEDIAN_SAD 15

#define	FF_CMP_CHROMA 256

#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 (MPEG-2 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_CODER_TYPE_VLC 0

#define	FF_CODER_TYPE_AC 1

#define	FF_CODER_TYPE_RAW 2

#define	FF_CODER_TYPE_RLE 3

#define	FF_BUG_AUTODETECT 1
	autodetection

#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_QPEL_CHROMA 64

#define	FF_BUG_STD_QPEL 128

#define	FF_BUG_QPEL_CHROMA2 256

#define	FF_BUG_DIRECT_BLOCKSIZE 512

#define	FF_BUG_EDGE 1024

#define	FF_BUG_HPEL_CHROMA 2048

#define	FF_BUG_DC_CLIP 4096

#define	FF_BUG_MS 8192
	Work around various bugs in Microsoft's broken decoders.

#define	FF_BUG_TRUNCATED 16384

#define	FF_BUG_IEDGE 32768

#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_EC_GUESS_MVS 1

#define	FF_EC_DEBLOCK 2

#define	FF_EC_FAVOR_INTER 256

#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_DCT_COEFF 0x00000040

#define	FF_DEBUG_SKIP 0x00000080

#define	FF_DEBUG_STARTCODE 0x00000100

#define	FF_DEBUG_ER 0x00000400

#define	FF_DEBUG_MMCO 0x00000800

#define	FF_DEBUG_BUGS 0x00001000

#define	FF_DEBUG_BUFFERS 0x00008000

#define	FF_DEBUG_THREADS 0x00010000

#define	FF_DEBUG_GREEN_MD 0x00800000

#define	FF_DEBUG_NOMC 0x01000000

#define	AV_EF_CRCCHECK (1<<0)
	Verify checksums embedded in the bitstream (could be of either encoded or decoded data, depending on the codec) and print an error message on mismatch. More...

#define	AV_EF_BITSTREAM (1<<1)
	detect bitstream specification deviations

#define	AV_EF_BUFFER (1<<2)
	detect improper bitstream length

#define	AV_EF_EXPLODE (1<<3)
	abort decoding on minor error detection

#define	AV_EF_IGNORE_ERR (1<<15)
	ignore errors and continue

#define	AV_EF_CAREFUL (1<<16)
	consider things that violate the spec, are fast to calculate and have not been seen in the wild as errors

#define	AV_EF_COMPLIANT (1<<17)
	consider all spec non compliances as errors

#define	AV_EF_AGGRESSIVE (1<<18)
	consider things that a sane encoder should not do as an error

#define	FF_DCT_AUTO 0

#define	FF_DCT_FASTINT 1

#define	FF_DCT_INT 2

#define	FF_DCT_MMX 3

#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_ARM 7

#define	FF_IDCT_ALTIVEC 8

#define	FF_IDCT_SIMPLEARM 10

#define	FF_IDCT_XVID 14

#define	FF_IDCT_SIMPLEARMV5TE 16

#define	FF_IDCT_SIMPLEARMV6 17

#define	FF_IDCT_FAAN 20

#define	FF_IDCT_SIMPLENEON 22

#define	FF_IDCT_NONE 24 /* Used by XvMC to extract IDCT coefficients with FF_IDCT_PERM_NONE */

#define	FF_IDCT_SIMPLEAUTO 128

#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	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_AAC_HE 4

#define	FF_PROFILE_AAC_HE_V2 28

#define	FF_PROFILE_AAC_LD 22

#define	FF_PROFILE_AAC_ELD 38

#define	FF_PROFILE_MPEG2_AAC_LOW 128

#define	FF_PROFILE_MPEG2_AAC_HE 131

#define	FF_PROFILE_DNXHD 0

#define	FF_PROFILE_DNXHR_LB 1

#define	FF_PROFILE_DNXHR_SQ 2

#define	FF_PROFILE_DNXHR_HQ 3

#define	FF_PROFILE_DNXHR_HQX 4

#define	FF_PROFILE_DNXHR_444 5

#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_DTS_EXPRESS 70

#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_MULTIVIEW_HIGH 118

#define	FF_PROFILE_H264_HIGH_422 122

#define	FF_PROFILE_H264_HIGH_422_INTRA (122\|FF_PROFILE_H264_INTRA)

#define	FF_PROFILE_H264_STEREO_HIGH 128

#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_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0 1

#define	FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1 2

#define	FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION 32768

#define	FF_PROFILE_JPEG2000_DCINEMA_2K 3

#define	FF_PROFILE_JPEG2000_DCINEMA_4K 4

#define	FF_PROFILE_VP9_0 0

#define	FF_PROFILE_VP9_1 1

#define	FF_PROFILE_VP9_2 2

#define	FF_PROFILE_VP9_3 3

#define	FF_PROFILE_HEVC_MAIN 1

#define	FF_PROFILE_HEVC_MAIN_10 2

#define	FF_PROFILE_HEVC_MAIN_STILL_PICTURE 3

#define	FF_PROFILE_HEVC_REXT 4

#define	FF_PROFILE_AV1_MAIN 0

#define	FF_PROFILE_AV1_HIGH 1

#define	FF_PROFILE_AV1_PROFESSIONAL 2

#define	FF_PROFILE_MJPEG_HUFFMAN_BASELINE_DCT 0xc0

#define	FF_PROFILE_MJPEG_HUFFMAN_EXTENDED_SEQUENTIAL_DCT 0xc1

#define	FF_PROFILE_MJPEG_HUFFMAN_PROGRESSIVE_DCT 0xc2

#define	FF_PROFILE_MJPEG_HUFFMAN_LOSSLESS 0xc3

#define	FF_PROFILE_MJPEG_JPEG_LS 0xf7

#define	FF_PROFILE_SBC_MSBC 1

#define	FF_LEVEL_UNKNOWN -99

#define	FF_SUB_CHARENC_MODE_DO_NOTHING -1
	do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for instance)

#define	FF_SUB_CHARENC_MODE_AUTOMATIC 0
	libavcodec will select the mode itself

#define	FF_SUB_CHARENC_MODE_PRE_DECODER 1
	the AVPacket data needs to be recoded to UTF-8 before being fed to the decoder, requires iconv

#define	FF_SUB_CHARENC_MODE_IGNORE 2
	neither convert the subtitles, nor check them for valid UTF-8

#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_CODEC_PROPERTY_LOSSLESS 0x00000001

#define	FF_CODEC_PROPERTY_CLOSED_CAPTIONS 0x00000002

#define	FF_SUB_TEXT_FMT_ASS 0

#define	FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS 1

#define	AV_HWACCEL_CODEC_CAP_EXPERIMENTAL 0x0200
	HWAccel is experimental and is thus avoided in favor of non experimental codecs.

#define	AV_HWACCEL_FLAG_IGNORE_LEVEL (1 << 0)
	Hardware acceleration should be used for decoding even if the codec level used is unknown or higher than the maximum supported level reported by the hardware driver. More...

#define	AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH (1 << 1)
	Hardware acceleration can output YUV pixel formats with a different chroma sampling than 4:2:0 and/or other than 8 bits per component.

#define	AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH (1 << 2)
	Hardware acceleration should still be attempted for decoding when the codec profile does not match the reported capabilities of the hardware. More...

#define	AV_SUBTITLE_FLAG_FORCED 0x00000001

#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.

#define	PARSER_FLAG_USE_CODEC_TS 0x1000

Typedefs
typedef struct AVCodecDescriptor	AVCodecDescriptor
	This struct describes the properties of a single codec described by an AVCodecID. More...

typedef struct RcOverride	RcOverride

typedef struct AVPanScan	AVPanScan
	Pan Scan area. More...

typedef struct AVCPBProperties	AVCPBProperties
	This structure describes the bitrate properties of an encoded bitstream. More...

typedef struct AVPacketSideData	AVPacketSideData

typedef struct AVPacket	AVPacket
	This structure stores compressed data. More...

typedef struct AVCodecContext	AVCodecContext
	main external API structure. More...

typedef struct AVProfile	AVProfile
	AVProfile.

typedef struct AVCodecHWConfig	AVCodecHWConfig

typedef struct AVCodecDefault	AVCodecDefault

typedef struct AVCodec	AVCodec
	AVCodec.

typedef struct AVHWAccel	AVHWAccel

typedef struct AVPicture	AVPicture
	Picture data structure. More...

typedef struct AVSubtitleRect	AVSubtitleRect

typedef struct AVSubtitle	AVSubtitle

typedef struct AVCodecParameters	AVCodecParameters
	This struct describes the properties of an encoded stream. More...

typedef struct AVCodecParserContext	AVCodecParserContext

typedef struct AVCodecParser	AVCodecParser

typedef struct AVBitStreamFilterContext	AVBitStreamFilterContext

typedef struct AVBSFInternal	AVBSFInternal

typedef struct AVBSFContext	AVBSFContext
	The bitstream filter state. More...

typedef struct AVBitStreamFilter	AVBitStreamFilter

typedef struct AVBSFList	AVBSFList
	Structure for chain/list of bitstream filters. More...

Enumerations
enum	AVCodecID { AV_CODEC_ID_NONE, AV_CODEC_ID_MPEG1VIDEO, AV_CODEC_ID_MPEG2VIDEO, AV_CODEC_ID_H261, AV_CODEC_ID_H263, AV_CODEC_ID_RV10, AV_CODEC_ID_RV20, AV_CODEC_ID_MJPEG, AV_CODEC_ID_MJPEGB, AV_CODEC_ID_LJPEG, AV_CODEC_ID_SP5X, AV_CODEC_ID_JPEGLS, AV_CODEC_ID_MPEG4, AV_CODEC_ID_RAWVIDEO, AV_CODEC_ID_MSMPEG4V1, AV_CODEC_ID_MSMPEG4V2, AV_CODEC_ID_MSMPEG4V3, AV_CODEC_ID_WMV1, AV_CODEC_ID_WMV2, AV_CODEC_ID_H263P, AV_CODEC_ID_H263I, AV_CODEC_ID_FLV1, AV_CODEC_ID_SVQ1, AV_CODEC_ID_SVQ3, AV_CODEC_ID_DVVIDEO, AV_CODEC_ID_HUFFYUV, AV_CODEC_ID_CYUV, AV_CODEC_ID_H264, AV_CODEC_ID_INDEO3, AV_CODEC_ID_VP3, AV_CODEC_ID_THEORA, AV_CODEC_ID_ASV1, AV_CODEC_ID_ASV2, AV_CODEC_ID_FFV1, AV_CODEC_ID_4XM, AV_CODEC_ID_VCR1, AV_CODEC_ID_CLJR, AV_CODEC_ID_MDEC, AV_CODEC_ID_ROQ, AV_CODEC_ID_INTERPLAY_VIDEO, AV_CODEC_ID_XAN_WC3, AV_CODEC_ID_XAN_WC4, AV_CODEC_ID_RPZA, AV_CODEC_ID_CINEPAK, AV_CODEC_ID_WS_VQA, AV_CODEC_ID_MSRLE, AV_CODEC_ID_MSVIDEO1, AV_CODEC_ID_IDCIN, AV_CODEC_ID_8BPS, AV_CODEC_ID_SMC, AV_CODEC_ID_FLIC, AV_CODEC_ID_TRUEMOTION1, AV_CODEC_ID_VMDVIDEO, AV_CODEC_ID_MSZH, AV_CODEC_ID_ZLIB, AV_CODEC_ID_QTRLE, AV_CODEC_ID_TSCC, AV_CODEC_ID_ULTI, AV_CODEC_ID_QDRAW, AV_CODEC_ID_VIXL, AV_CODEC_ID_QPEG, AV_CODEC_ID_PNG, AV_CODEC_ID_PPM, AV_CODEC_ID_PBM, AV_CODEC_ID_PGM, AV_CODEC_ID_PGMYUV, AV_CODEC_ID_PAM, AV_CODEC_ID_FFVHUFF, AV_CODEC_ID_RV30, AV_CODEC_ID_RV40, AV_CODEC_ID_VC1, AV_CODEC_ID_WMV3, AV_CODEC_ID_LOCO, AV_CODEC_ID_WNV1, AV_CODEC_ID_AASC, AV_CODEC_ID_INDEO2, AV_CODEC_ID_FRAPS, AV_CODEC_ID_TRUEMOTION2, AV_CODEC_ID_BMP, AV_CODEC_ID_CSCD, AV_CODEC_ID_MMVIDEO, AV_CODEC_ID_ZMBV, AV_CODEC_ID_AVS, AV_CODEC_ID_SMACKVIDEO, AV_CODEC_ID_NUV, AV_CODEC_ID_KMVC, AV_CODEC_ID_FLASHSV, AV_CODEC_ID_CAVS, AV_CODEC_ID_JPEG2000, AV_CODEC_ID_VMNC, AV_CODEC_ID_VP5, AV_CODEC_ID_VP6, AV_CODEC_ID_VP6F, AV_CODEC_ID_TARGA, AV_CODEC_ID_DSICINVIDEO, AV_CODEC_ID_TIERTEXSEQVIDEO, AV_CODEC_ID_TIFF, AV_CODEC_ID_GIF, AV_CODEC_ID_DXA, AV_CODEC_ID_DNXHD, AV_CODEC_ID_THP, AV_CODEC_ID_SGI, AV_CODEC_ID_C93, AV_CODEC_ID_BETHSOFTVID, AV_CODEC_ID_PTX, AV_CODEC_ID_TXD, AV_CODEC_ID_VP6A, AV_CODEC_ID_AMV, AV_CODEC_ID_VB, AV_CODEC_ID_PCX, AV_CODEC_ID_SUNRAST, AV_CODEC_ID_INDEO4, AV_CODEC_ID_INDEO5, AV_CODEC_ID_MIMIC, AV_CODEC_ID_RL2, AV_CODEC_ID_ESCAPE124, AV_CODEC_ID_DIRAC, AV_CODEC_ID_BFI, AV_CODEC_ID_CMV, AV_CODEC_ID_MOTIONPIXELS, AV_CODEC_ID_TGV, AV_CODEC_ID_TGQ, AV_CODEC_ID_TQI, AV_CODEC_ID_AURA, AV_CODEC_ID_AURA2, AV_CODEC_ID_V210X, AV_CODEC_ID_TMV, AV_CODEC_ID_V210, AV_CODEC_ID_DPX, AV_CODEC_ID_MAD, AV_CODEC_ID_FRWU, AV_CODEC_ID_FLASHSV2, AV_CODEC_ID_CDGRAPHICS, AV_CODEC_ID_R210, AV_CODEC_ID_ANM, AV_CODEC_ID_BINKVIDEO, AV_CODEC_ID_IFF_ILBM, AV_CODEC_ID_KGV1, AV_CODEC_ID_YOP, AV_CODEC_ID_VP8, AV_CODEC_ID_PICTOR, AV_CODEC_ID_ANSI, AV_CODEC_ID_A64_MULTI, AV_CODEC_ID_A64_MULTI5, AV_CODEC_ID_R10K, AV_CODEC_ID_MXPEG, AV_CODEC_ID_LAGARITH, AV_CODEC_ID_PRORES, AV_CODEC_ID_JV, AV_CODEC_ID_DFA, AV_CODEC_ID_WMV3IMAGE, AV_CODEC_ID_VC1IMAGE, AV_CODEC_ID_UTVIDEO, AV_CODEC_ID_BMV_VIDEO, AV_CODEC_ID_VBLE, AV_CODEC_ID_DXTORY, AV_CODEC_ID_V410, AV_CODEC_ID_XWD, AV_CODEC_ID_CDXL, AV_CODEC_ID_XBM, AV_CODEC_ID_ZEROCODEC, AV_CODEC_ID_MSS1, AV_CODEC_ID_MSA1, AV_CODEC_ID_TSCC2, AV_CODEC_ID_MTS2, AV_CODEC_ID_CLLC, AV_CODEC_ID_MSS2, AV_CODEC_ID_VP9, AV_CODEC_ID_AIC, AV_CODEC_ID_ESCAPE130, AV_CODEC_ID_G2M, AV_CODEC_ID_WEBP, AV_CODEC_ID_HNM4_VIDEO, AV_CODEC_ID_HEVC, AV_CODEC_ID_FIC, AV_CODEC_ID_ALIAS_PIX, AV_CODEC_ID_BRENDER_PIX, AV_CODEC_ID_PAF_VIDEO, AV_CODEC_ID_EXR, AV_CODEC_ID_VP7, AV_CODEC_ID_SANM, AV_CODEC_ID_SGIRLE, AV_CODEC_ID_MVC1, AV_CODEC_ID_MVC2, AV_CODEC_ID_HQX, AV_CODEC_ID_TDSC, AV_CODEC_ID_HQ_HQA, AV_CODEC_ID_HAP, AV_CODEC_ID_DDS, AV_CODEC_ID_DXV, AV_CODEC_ID_SCREENPRESSO, AV_CODEC_ID_RSCC, AV_CODEC_ID_Y41P = 0x8000, AV_CODEC_ID_AVRP, AV_CODEC_ID_012V, AV_CODEC_ID_AVUI, AV_CODEC_ID_AYUV, AV_CODEC_ID_TARGA_Y216, AV_CODEC_ID_V308, AV_CODEC_ID_V408, AV_CODEC_ID_YUV4, AV_CODEC_ID_AVRN, AV_CODEC_ID_CPIA, AV_CODEC_ID_XFACE, AV_CODEC_ID_SNOW, AV_CODEC_ID_SMVJPEG, AV_CODEC_ID_APNG, AV_CODEC_ID_DAALA, AV_CODEC_ID_CFHD, AV_CODEC_ID_TRUEMOTION2RT, AV_CODEC_ID_M101, AV_CODEC_ID_MAGICYUV, AV_CODEC_ID_SHEERVIDEO, AV_CODEC_ID_YLC, AV_CODEC_ID_PSD, AV_CODEC_ID_PIXLET, AV_CODEC_ID_SPEEDHQ, AV_CODEC_ID_FMVC, AV_CODEC_ID_SCPR, AV_CODEC_ID_CLEARVIDEO, AV_CODEC_ID_XPM, AV_CODEC_ID_AV1, AV_CODEC_ID_BITPACKED, AV_CODEC_ID_MSCC, AV_CODEC_ID_SRGC, AV_CODEC_ID_SVG, AV_CODEC_ID_GDV, AV_CODEC_ID_FITS, AV_CODEC_ID_FIRST_AUDIO = 0x10000, AV_CODEC_ID_PCM_S16LE = 0x10000, AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_U16LE, AV_CODEC_ID_PCM_U16BE, AV_CODEC_ID_PCM_S8, AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_MULAW, AV_CODEC_ID_PCM_ALAW, AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE, AV_CODEC_ID_PCM_U32LE, AV_CODEC_ID_PCM_U32BE, AV_CODEC_ID_PCM_S24LE, AV_CODEC_ID_PCM_S24BE, AV_CODEC_ID_PCM_U24LE, AV_CODEC_ID_PCM_U24BE, AV_CODEC_ID_PCM_S24DAUD, AV_CODEC_ID_PCM_ZORK, AV_CODEC_ID_PCM_S16LE_PLANAR, AV_CODEC_ID_PCM_DVD, AV_CODEC_ID_PCM_F32BE, AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F64BE, AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_BLURAY, AV_CODEC_ID_PCM_LXF, AV_CODEC_ID_S302M, AV_CODEC_ID_PCM_S8_PLANAR, AV_CODEC_ID_PCM_S24LE_PLANAR, AV_CODEC_ID_PCM_S32LE_PLANAR, AV_CODEC_ID_PCM_S16BE_PLANAR, AV_CODEC_ID_PCM_S64LE = 0x10800, AV_CODEC_ID_PCM_S64BE, AV_CODEC_ID_PCM_F16LE, AV_CODEC_ID_PCM_F24LE, AV_CODEC_ID_ADPCM_IMA_QT = 0x11000, AV_CODEC_ID_ADPCM_IMA_WAV, AV_CODEC_ID_ADPCM_IMA_DK3, AV_CODEC_ID_ADPCM_IMA_DK4, AV_CODEC_ID_ADPCM_IMA_WS, AV_CODEC_ID_ADPCM_IMA_SMJPEG, AV_CODEC_ID_ADPCM_MS, AV_CODEC_ID_ADPCM_4XM, AV_CODEC_ID_ADPCM_XA, AV_CODEC_ID_ADPCM_ADX, AV_CODEC_ID_ADPCM_EA, AV_CODEC_ID_ADPCM_G726, AV_CODEC_ID_ADPCM_CT, AV_CODEC_ID_ADPCM_SWF, AV_CODEC_ID_ADPCM_YAMAHA, AV_CODEC_ID_ADPCM_SBPRO_4, AV_CODEC_ID_ADPCM_SBPRO_3, AV_CODEC_ID_ADPCM_SBPRO_2, AV_CODEC_ID_ADPCM_THP, AV_CODEC_ID_ADPCM_IMA_AMV, AV_CODEC_ID_ADPCM_EA_R1, AV_CODEC_ID_ADPCM_EA_R3, AV_CODEC_ID_ADPCM_EA_R2, AV_CODEC_ID_ADPCM_IMA_EA_SEAD, AV_CODEC_ID_ADPCM_IMA_EA_EACS, AV_CODEC_ID_ADPCM_EA_XAS, AV_CODEC_ID_ADPCM_EA_MAXIS_XA, AV_CODEC_ID_ADPCM_IMA_ISS, AV_CODEC_ID_ADPCM_G722, AV_CODEC_ID_ADPCM_IMA_APC, AV_CODEC_ID_ADPCM_VIMA, AV_CODEC_ID_ADPCM_AFC = 0x11800, AV_CODEC_ID_ADPCM_IMA_OKI, AV_CODEC_ID_ADPCM_DTK, AV_CODEC_ID_ADPCM_IMA_RAD, AV_CODEC_ID_ADPCM_G726LE, AV_CODEC_ID_ADPCM_THP_LE, AV_CODEC_ID_ADPCM_PSX, AV_CODEC_ID_ADPCM_AICA, AV_CODEC_ID_ADPCM_IMA_DAT4, AV_CODEC_ID_ADPCM_MTAF, AV_CODEC_ID_AMR_NB = 0x12000, AV_CODEC_ID_AMR_WB, AV_CODEC_ID_RA_144 = 0x13000, AV_CODEC_ID_RA_288, AV_CODEC_ID_ROQ_DPCM = 0x14000, AV_CODEC_ID_INTERPLAY_DPCM, AV_CODEC_ID_XAN_DPCM, AV_CODEC_ID_SOL_DPCM, AV_CODEC_ID_SDX2_DPCM = 0x14800, AV_CODEC_ID_GREMLIN_DPCM, AV_CODEC_ID_MP2 = 0x15000, AV_CODEC_ID_MP3, AV_CODEC_ID_AAC, AV_CODEC_ID_AC3, AV_CODEC_ID_DTS, AV_CODEC_ID_VORBIS, AV_CODEC_ID_DVAUDIO, AV_CODEC_ID_WMAV1, AV_CODEC_ID_WMAV2, AV_CODEC_ID_MACE3, AV_CODEC_ID_MACE6, AV_CODEC_ID_VMDAUDIO, AV_CODEC_ID_FLAC, AV_CODEC_ID_MP3ADU, AV_CODEC_ID_MP3ON4, AV_CODEC_ID_SHORTEN, AV_CODEC_ID_ALAC, AV_CODEC_ID_WESTWOOD_SND1, AV_CODEC_ID_GSM, AV_CODEC_ID_QDM2, AV_CODEC_ID_COOK, AV_CODEC_ID_TRUESPEECH, AV_CODEC_ID_TTA, AV_CODEC_ID_SMACKAUDIO, AV_CODEC_ID_QCELP, AV_CODEC_ID_WAVPACK, AV_CODEC_ID_DSICINAUDIO, AV_CODEC_ID_IMC, AV_CODEC_ID_MUSEPACK7, AV_CODEC_ID_MLP, AV_CODEC_ID_GSM_MS, AV_CODEC_ID_ATRAC3, AV_CODEC_ID_APE, AV_CODEC_ID_NELLYMOSER, AV_CODEC_ID_MUSEPACK8, AV_CODEC_ID_SPEEX, AV_CODEC_ID_WMAVOICE, AV_CODEC_ID_WMAPRO, AV_CODEC_ID_WMALOSSLESS, AV_CODEC_ID_ATRAC3P, AV_CODEC_ID_EAC3, AV_CODEC_ID_SIPR, AV_CODEC_ID_MP1, AV_CODEC_ID_TWINVQ, AV_CODEC_ID_TRUEHD, AV_CODEC_ID_MP4ALS, AV_CODEC_ID_ATRAC1, AV_CODEC_ID_BINKAUDIO_RDFT, AV_CODEC_ID_BINKAUDIO_DCT, AV_CODEC_ID_AAC_LATM, AV_CODEC_ID_QDMC, AV_CODEC_ID_CELT, AV_CODEC_ID_G723_1, AV_CODEC_ID_G729, AV_CODEC_ID_8SVX_EXP, AV_CODEC_ID_8SVX_FIB, AV_CODEC_ID_BMV_AUDIO, AV_CODEC_ID_RALF, AV_CODEC_ID_IAC, AV_CODEC_ID_ILBC, AV_CODEC_ID_OPUS, AV_CODEC_ID_COMFORT_NOISE, AV_CODEC_ID_TAK, AV_CODEC_ID_METASOUND, AV_CODEC_ID_PAF_AUDIO, AV_CODEC_ID_ON2AVC, AV_CODEC_ID_DSS_SP, AV_CODEC_ID_CODEC2, AV_CODEC_ID_FFWAVESYNTH = 0x15800, AV_CODEC_ID_SONIC, AV_CODEC_ID_SONIC_LS, AV_CODEC_ID_EVRC, AV_CODEC_ID_SMV, AV_CODEC_ID_DSD_LSBF, AV_CODEC_ID_DSD_MSBF, AV_CODEC_ID_DSD_LSBF_PLANAR, AV_CODEC_ID_DSD_MSBF_PLANAR, AV_CODEC_ID_4GV, AV_CODEC_ID_INTERPLAY_ACM, AV_CODEC_ID_XMA1, AV_CODEC_ID_XMA2, AV_CODEC_ID_DST, AV_CODEC_ID_ATRAC3AL, AV_CODEC_ID_ATRAC3PAL, AV_CODEC_ID_DOLBY_E, AV_CODEC_ID_APTX, AV_CODEC_ID_APTX_HD, AV_CODEC_ID_SBC, AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, AV_CODEC_ID_DVD_SUBTITLE = 0x17000, AV_CODEC_ID_DVB_SUBTITLE, AV_CODEC_ID_TEXT, AV_CODEC_ID_XSUB, AV_CODEC_ID_SSA, AV_CODEC_ID_MOV_TEXT, AV_CODEC_ID_HDMV_PGS_SUBTITLE, AV_CODEC_ID_DVB_TELETEXT, AV_CODEC_ID_SRT, AV_CODEC_ID_MICRODVD = 0x17800, AV_CODEC_ID_EIA_608, AV_CODEC_ID_JACOSUB, AV_CODEC_ID_SAMI, AV_CODEC_ID_REALTEXT, AV_CODEC_ID_STL, AV_CODEC_ID_SUBVIEWER1, AV_CODEC_ID_SUBVIEWER, AV_CODEC_ID_SUBRIP, AV_CODEC_ID_WEBVTT, AV_CODEC_ID_MPL2, AV_CODEC_ID_VPLAYER, AV_CODEC_ID_PJS, AV_CODEC_ID_ASS, AV_CODEC_ID_HDMV_TEXT_SUBTITLE, AV_CODEC_ID_FIRST_UNKNOWN = 0x18000, AV_CODEC_ID_TTF = 0x18000, AV_CODEC_ID_SCTE_35, AV_CODEC_ID_BINTEXT = 0x18800, AV_CODEC_ID_XBIN, AV_CODEC_ID_IDF, AV_CODEC_ID_OTF, AV_CODEC_ID_SMPTE_KLV, AV_CODEC_ID_DVD_NAV, AV_CODEC_ID_TIMED_ID3, AV_CODEC_ID_BIN_DATA, AV_CODEC_ID_PROBE = 0x19000, AV_CODEC_ID_MPEG2TS = 0x20000, AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, AV_CODEC_ID_FFMETADATA = 0x21000, AV_CODEC_ID_WRAPPED_AVFRAME = 0x21001 }
	Identify the syntax and semantics of the bitstream. More...

enum	AVDiscard { AVDISCARD_NONE =-16, AVDISCARD_DEFAULT = 0, AVDISCARD_NONREF = 8, AVDISCARD_BIDIR = 16, AVDISCARD_NONINTRA = 24, AVDISCARD_NONKEY = 32, AVDISCARD_ALL = 48 }

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, AV_PKT_DATA_H263_MB_INFO, AV_PKT_DATA_REPLAYGAIN, AV_PKT_DATA_DISPLAYMATRIX, AV_PKT_DATA_STEREO3D, AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_PKT_DATA_QUALITY_STATS, AV_PKT_DATA_FALLBACK_TRACK, AV_PKT_DATA_CPB_PROPERTIES, AV_PKT_DATA_SKIP_SAMPLES, AV_PKT_DATA_JP_DUALMONO, AV_PKT_DATA_STRINGS_METADATA, AV_PKT_DATA_SUBTITLE_POSITION, AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL, AV_PKT_DATA_WEBVTT_IDENTIFIER, AV_PKT_DATA_WEBVTT_SETTINGS, AV_PKT_DATA_METADATA_UPDATE, AV_PKT_DATA_MPEGTS_STREAM_ID, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_PKT_DATA_SPHERICAL, AV_PKT_DATA_CONTENT_LIGHT_LEVEL, AV_PKT_DATA_A53_CC, AV_PKT_DATA_ENCRYPTION_INIT_INFO, AV_PKT_DATA_ENCRYPTION_INFO, AV_PKT_DATA_NB }

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 }

enum	AVFieldOrder { AV_FIELD_UNKNOWN, AV_FIELD_PROGRESSIVE, AV_FIELD_TT, AV_FIELD_BB, AV_FIELD_TB, AV_FIELD_BT }

enum	{ AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX = 0x01, AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX = 0x02, AV_CODEC_HW_CONFIG_METHOD_INTERNAL = 0x04, AV_CODEC_HW_CONFIG_METHOD_AD_HOC = 0x08 }

enum	AVSubtitleType { SUBTITLE_NONE, SUBTITLE_BITMAP, SUBTITLE_TEXT, SUBTITLE_ASS }

enum	AVPictureStructure { AV_PICTURE_STRUCTURE_UNKNOWN, AV_PICTURE_STRUCTURE_TOP_FIELD, AV_PICTURE_STRUCTURE_BOTTOM_FIELD, AV_PICTURE_STRUCTURE_FRAME }

enum	AVLockOp { AV_LOCK_CREATE, AV_LOCK_OBTAIN, AV_LOCK_RELEASE, AV_LOCK_DESTROY }
	Lock operation used by lockmgr. More...

Functions
attribute_deprecated AVRational	av_codec_get_pkt_timebase (const AVCodecContext *avctx)
	Accessors for some AVCodecContext fields. More...

attribute_deprecated void	av_codec_set_pkt_timebase (AVCodecContext *avctx, AVRational val)

attribute_deprecated const AVCodecDescriptor *	av_codec_get_codec_descriptor (const AVCodecContext *avctx)

attribute_deprecated void	av_codec_set_codec_descriptor (AVCodecContext avctx, const AVCodecDescriptor desc)

attribute_deprecated unsigned	av_codec_get_codec_properties (const AVCodecContext *avctx)

attribute_deprecated int	av_codec_get_lowres (const AVCodecContext *avctx)

attribute_deprecated void	av_codec_set_lowres (AVCodecContext *avctx, int val)

attribute_deprecated int	av_codec_get_seek_preroll (const AVCodecContext *avctx)

attribute_deprecated void	av_codec_set_seek_preroll (AVCodecContext *avctx, int val)

attribute_deprecated uint16_t *	av_codec_get_chroma_intra_matrix (const AVCodecContext *avctx)

attribute_deprecated void	av_codec_set_chroma_intra_matrix (AVCodecContext avctx, uint16_t val)

attribute_deprecated int	av_codec_get_max_lowres (const AVCodec *codec)

const AVCodecHWConfig *	avcodec_get_hw_config (const AVCodec *codec, int index)
	Retrieve supported hardware configurations for a codec. More...

const AVCodec *	av_codec_iterate (void **opaque)
	Iterate over all registered codecs. More...

attribute_deprecated AVCodec *	av_codec_next (const 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_register (AVCodec *codec)
	Register the codec codec and initialize libavcodec. More...

attribute_deprecated void	avcodec_register_all (void)
	Register all the codecs, parsers and bitstream filters which were enabled at configuration time. More...

AVCodecContext *	avcodec_alloc_context3 (const AVCodec *codec)
	Allocate an AVCodecContext and set its fields to default values. More...

void	avcodec_free_context (AVCodecContext **avctx)
	Free the codec context and everything associated with it and write NULL to the provided pointer.

int	avcodec_get_context_defaults3 (AVCodecContext s, const AVCodec codec)

const AVClass *	avcodec_get_class (void)
	Get the AVClass for AVCodecContext. More...

const AVClass *	avcodec_get_frame_class (void)
	Get the AVClass for AVFrame. More...

const AVClass *	avcodec_get_subtitle_rect_class (void)
	Get the AVClass for AVSubtitleRect. More...

attribute_deprecated int	avcodec_copy_context (AVCodecContext dest, const AVCodecContext src)
	Copy the settings of the source AVCodecContext into the destination AVCodecContext. More...

AVCodecParameters *	avcodec_parameters_alloc (void)
	Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0). More...

void	avcodec_parameters_free (AVCodecParameters **par)
	Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied pointer.

int	avcodec_parameters_copy (AVCodecParameters dst, const AVCodecParameters src)
	Copy the contents of src to dst. More...

int	avcodec_parameters_from_context (AVCodecParameters par, const AVCodecContext codec)
	Fill the parameters struct based on the values from the supplied codec context. More...

int	avcodec_parameters_to_context (AVCodecContext codec, const AVCodecParameters par)
	Fill the codec context based on the values from the supplied codec parameters. More...

int	avcodec_open2 (AVCodecContext avctx, const AVCodec codec, AVDictionary **options)
	Initialize the AVCodecContext to use the given AVCodec. More...

int	avcodec_close (AVCodecContext *avctx)
	Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext itself). More...

void	avsubtitle_free (AVSubtitle *sub)
	Free all allocated data in the given subtitle struct. More...

AVPacket *	av_packet_alloc (void)
	Allocate an AVPacket and set its fields to default values. More...

AVPacket *	av_packet_clone (const AVPacket *src)
	Create a new packet that references the same data as src. More...

void	av_packet_free (AVPacket **pkt)
	Free the packet, if the packet is reference counted, it will be unreferenced first. More...

void	av_init_packet (AVPacket *pkt)
	Initialize optional fields of a packet with default values. More...

int	av_new_packet (AVPacket *pkt, int size)
	Allocate the payload of a packet and initialize its fields with default values. More...

void	av_shrink_packet (AVPacket *pkt, int size)
	Reduce packet size, correctly zeroing padding. More...

int	av_grow_packet (AVPacket *pkt, int grow_by)
	Increase packet size, correctly zeroing padding. More...

int	av_packet_from_data (AVPacket pkt, uint8_t data, int size)
	Initialize a reference-counted packet from av_malloc()ed data. More...

attribute_deprecated int	av_dup_packet (AVPacket *pkt)

attribute_deprecated int	av_copy_packet (AVPacket dst, const AVPacket src)
	Copy packet, including contents. More...

attribute_deprecated int	av_copy_packet_side_data (AVPacket dst, const AVPacket src)
	Copy packet side data. More...

attribute_deprecated void	av_free_packet (AVPacket *pkt)
	Free a packet. More...

uint8_t *	av_packet_new_side_data (AVPacket *pkt, enum AVPacketSideDataType type, int size)
	Allocate new information of a packet. More...

int	av_packet_add_side_data (AVPacket pkt, enum AVPacketSideDataType type, uint8_t data, size_t size)
	Wrap an existing array as a packet side data. More...

int	av_packet_shrink_side_data (AVPacket *pkt, enum AVPacketSideDataType type, int size)
	Shrink the already allocated side data buffer. More...

uint8_t *	av_packet_get_side_data (const AVPacket pkt, enum AVPacketSideDataType type, int size)
	Get side information from packet. More...

attribute_deprecated int	av_packet_merge_side_data (AVPacket *pkt)

attribute_deprecated int	av_packet_split_side_data (AVPacket *pkt)

const char *	av_packet_side_data_name (enum AVPacketSideDataType type)

uint8_t *	av_packet_pack_dictionary (AVDictionary dict, int size)
	Pack a dictionary for use in side_data. More...

int	av_packet_unpack_dictionary (const uint8_t data, int size, AVDictionary *dict)
	Unpack a dictionary from side_data. More...

void	av_packet_free_side_data (AVPacket *pkt)
	Convenience function to free all the side data stored. More...

int	av_packet_ref (AVPacket dst, const AVPacket src)
	Setup a new reference to the data described by a given packet. More...

void	av_packet_unref (AVPacket *pkt)
	Wipe the packet. More...

void	av_packet_move_ref (AVPacket dst, AVPacket src)
	Move every field in src to dst and reset src. More...

int	av_packet_copy_props (AVPacket dst, const AVPacket src)
	Copy only "properties" fields from src to dst. More...

int	av_packet_make_refcounted (AVPacket *pkt)
	Ensure the data described by a given packet is reference counted. More...

int	av_packet_make_writable (AVPacket *pkt)
	Create a writable reference for the data described by a given packet, avoiding data copy if possible. More...

void	av_packet_rescale_ts (AVPacket *pkt, AVRational tb_src, AVRational tb_dst)
	Convert valid timing fields (timestamps / durations) in a packet from one timebase to another. More...

AVCodec *	avcodec_find_decoder (enum AVCodecID id)
	Find a registered decoder with a matching codec ID. More...

AVCodec *	avcodec_find_decoder_by_name (const char *name)
	Find a registered decoder with the specified name. More...

int	avcodec_default_get_buffer2 (AVCodecContext s, AVFrame frame, int flags)
	The default callback for AVCodecContext.get_buffer2(). More...

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. More...

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]. More...

int	avcodec_enum_to_chroma_pos (int xpos, int ypos, enum AVChromaLocation pos)
	Converts AVChromaLocation to swscale x/y chroma position. More...

enum AVChromaLocation	avcodec_chroma_pos_to_enum (int xpos, int ypos)
	Converts swscale x/y chroma position to AVChromaLocation. More...

attribute_deprecated int	avcodec_decode_audio4 (AVCodecContext avctx, AVFrame frame, int got_frame_ptr, const AVPacket avpkt)
	Decode the audio frame of size avpkt->size from avpkt->data into frame. More...

attribute_deprecated 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. More...

int	avcodec_decode_subtitle2 (AVCodecContext avctx, AVSubtitle sub, int got_sub_ptr, AVPacket avpkt)
	Decode a subtitle message. More...

int	avcodec_send_packet (AVCodecContext avctx, const AVPacket avpkt)
	Supply raw packet data as input to a decoder. More...

int	avcodec_receive_frame (AVCodecContext avctx, AVFrame frame)
	Return decoded output data from a decoder. More...

int	avcodec_send_frame (AVCodecContext avctx, const AVFrame frame)
	Supply a raw video or audio frame to the encoder. More...

int	avcodec_receive_packet (AVCodecContext avctx, AVPacket avpkt)
	Read encoded data from the encoder. More...

int	avcodec_get_hw_frames_parameters (AVCodecContext avctx, AVBufferRef device_ref, enum AVPixelFormat hw_pix_fmt, AVBufferRef **out_frames_ref)
	Create and return a AVHWFramesContext with values adequate for hardware decoding. More...

const AVCodecParser *	av_parser_iterate (void **opaque)
	Iterate over all registered codec parsers. More...

attribute_deprecated AVCodecParser *	av_parser_next (const AVCodecParser *c)

attribute_deprecated 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. More...

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)

AVCodec *	avcodec_find_encoder (enum AVCodecID id)
	Find a registered encoder with a matching codec ID. More...

AVCodec *	avcodec_find_encoder_by_name (const char *name)
	Find a registered encoder with the specified name. More...

attribute_deprecated int	avcodec_encode_audio2 (AVCodecContext avctx, AVPacket avpkt, const AVFrame frame, int got_packet_ptr)
	Encode a frame of audio. More...

attribute_deprecated int	avcodec_encode_video2 (AVCodecContext avctx, AVPacket avpkt, const AVFrame frame, int got_packet_ptr)
	Encode a frame of video. More...

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

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

attribute_deprecated void	avpicture_free (AVPicture *picture)

attribute_deprecated int	avpicture_fill (AVPicture picture, const uint8_t ptr, enum AVPixelFormat pix_fmt, int width, int height)

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

attribute_deprecated int	avpicture_get_size (enum AVPixelFormat pix_fmt, int width, int height)

attribute_deprecated void	av_picture_copy (AVPicture dst, const AVPicture src, enum AVPixelFormat pix_fmt, int width, int height)

attribute_deprecated int	av_picture_crop (AVPicture dst, const AVPicture src, enum AVPixelFormat pix_fmt, int top_band, int left_band)

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

attribute_deprecated void	avcodec_get_chroma_sub_sample (enum AVPixelFormat pix_fmt, int h_shift, int v_shift)

unsigned int	avcodec_pix_fmt_to_codec_tag (enum AVPixelFormat 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.

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

enum AVPixelFormat	avcodec_find_best_pix_fmt_of_list (const enum AVPixelFormat pix_fmt_list, enum AVPixelFormat src_pix_fmt, int has_alpha, int loss_ptr)
	Find the best pixel format to convert to given a certain source pixel format. More...

enum AVPixelFormat	avcodec_find_best_pix_fmt_of_2 (enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2, enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)

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

enum AVPixelFormat	avcodec_default_get_format (struct AVCodecContext s, const enum AVPixelFormat fmt)

attribute_deprecated 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. More...

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. More...

const char *	avcodec_profile_name (enum AVCodecID codec_id, int profile)
	Return a name for the specified profile, if available. More...

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

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

int	avcodec_fill_audio_frame (AVFrame frame, int nb_channels, enum AVSampleFormat sample_fmt, const uint8_t buf, int buf_size, int align)
	Fill AVFrame audio data and linesize pointers. More...

void	avcodec_flush_buffers (AVCodecContext *avctx)
	Reset the internal decoder state / flush internal buffers. More...

int	av_get_bits_per_sample (enum AVCodecID codec_id)
	Return codec bits per sample. More...

enum AVCodecID	av_get_pcm_codec (enum AVSampleFormat fmt, int be)
	Return the PCM codec associated with a sample format. More...

int	av_get_exact_bits_per_sample (enum AVCodecID codec_id)
	Return codec bits per sample. More...

int	av_get_audio_frame_duration (AVCodecContext *avctx, int frame_bytes)
	Return audio frame duration. More...

int	av_get_audio_frame_duration2 (AVCodecParameters *par, int frame_bytes)
	This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters instead of an AVCodecContext.

attribute_deprecated void	av_register_bitstream_filter (AVBitStreamFilter *bsf)

attribute_deprecated AVBitStreamFilterContext *	av_bitstream_filter_init (const char *name)

attribute_deprecated 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)

attribute_deprecated void	av_bitstream_filter_close (AVBitStreamFilterContext *bsf)

attribute_deprecated const AVBitStreamFilter *	av_bitstream_filter_next (const AVBitStreamFilter *f)

const AVBitStreamFilter *	av_bsf_get_by_name (const char *name)

const AVBitStreamFilter *	av_bsf_iterate (void **opaque)
	Iterate over all registered bitstream filters. More...

attribute_deprecated const AVBitStreamFilter *	av_bsf_next (void **opaque)

int	av_bsf_alloc (const AVBitStreamFilter filter, AVBSFContext *ctx)
	Allocate a context for a given bitstream filter. More...

int	av_bsf_init (AVBSFContext *ctx)
	Prepare the filter for use, after all the parameters and options have been set.

int	av_bsf_send_packet (AVBSFContext ctx, AVPacket pkt)
	Submit a packet for filtering. More...

int	av_bsf_receive_packet (AVBSFContext ctx, AVPacket pkt)
	Retrieve a filtered packet. More...

void	av_bsf_free (AVBSFContext **ctx)
	Free a bitstream filter context and everything associated with it; write NULL into the supplied pointer.

const AVClass *	av_bsf_get_class (void)
	Get the AVClass for AVBSFContext. More...

AVBSFList *	av_bsf_list_alloc (void)
	Allocate empty list of bitstream filters. More...

void	av_bsf_list_free (AVBSFList **lst)
	Free list of bitstream filters. More...

int	av_bsf_list_append (AVBSFList lst, AVBSFContext bsf)
	Append bitstream filter to the list of bitstream filters. More...

int	av_bsf_list_append2 (AVBSFList lst, const char bsf_name, AVDictionary **options)
	Construct new bitstream filter context given it's name and options and append it to the list of bitstream filters. More...

int	av_bsf_list_finalize (AVBSFList lst, AVBSFContext bsf)
	Finalize list of bitstream filters. More...

int	av_bsf_list_parse_str (const char str, AVBSFContext *bsf)
	Parse string describing list of bitstream filters and create single AVBSFContext describing the whole chain of bitstream filters. More...

int	av_bsf_get_null_filter (AVBSFContext **bsf)
	Get null/pass-through bitstream filter. More...

void	av_fast_padded_malloc (void ptr, unsigned int size, size_t min_size)
	Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end which will always be 0. More...

void	av_fast_padded_mallocz (void ptr, unsigned int size, size_t min_size)
	Same behaviour av_fast_padded_malloc except that buffer will always be 0-initialized after call.

unsigned int	av_xiphlacing (unsigned char *s, unsigned int v)
	Encode extradata length to a buffer. More...

attribute_deprecated void	av_register_hwaccel (AVHWAccel *hwaccel)
	Register the hardware accelerator hwaccel. More...

attribute_deprecated AVHWAccel *	av_hwaccel_next (const 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. More...

attribute_deprecated int	av_lockmgr_register (int(cb)(void *mutex, enum AVLockOp op))
	Register a user provided lock manager supporting the operations specified by AVLockOp. More...

enum AVMediaType	avcodec_get_type (enum AVCodecID codec_id)
	Get the type of the given codec.

const char *	avcodec_get_name (enum AVCodecID id)
	Get the name of a codec. More...

int	avcodec_is_open (AVCodecContext *s)

int	av_codec_is_encoder (const AVCodec *codec)

int	av_codec_is_decoder (const AVCodec *codec)

const AVCodecDescriptor *	avcodec_descriptor_get (enum AVCodecID id)

const AVCodecDescriptor *	avcodec_descriptor_next (const AVCodecDescriptor *prev)
	Iterate over all codec descriptors known to libavcodec. More...

const AVCodecDescriptor *	avcodec_descriptor_get_by_name (const char *name)

AVCPBProperties *	av_cpb_properties_alloc (size_t *size)
	Allocate a CPB properties structure and initialize its fields to default values. More...

Detailed Description

Libavcodec external API header.

Macro Definition Documentation

§ AV_EF_CRCCHECK

#define AV_EF_CRCCHECK (1<<0)

Verify checksums embedded in the bitstream (could be of either encoded or decoded data, depending on the codec) and print an error message on mismatch.

If AV_EF_EXPLODE is also set, a mismatching checksum will result in the decoder returning an error.

Classes

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

§ AV_EF_CRCCHECK