Data Structures
struct	AVCodecParserContext

struct	AVCodecParser

Enumerations
enum	AVPictureStructure { AV_PICTURE_STRUCTURE_UNKNOWN, AV_PICTURE_STRUCTURE_TOP_FIELD, AV_PICTURE_STRUCTURE_BOTTOM_FIELD, AV_PICTURE_STRUCTURE_FRAME }

Functions
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)

Detailed Description

Enumeration Type Documentation

◆ AVPictureStructure

enum AVPictureStructure

Enumerator
AV_PICTURE_STRUCTURE_UNKNOWN
AV_PICTURE_STRUCTURE_TOP_FIELD
AV_PICTURE_STRUCTURE_BOTTOM_FIELD
AV_PICTURE_STRUCTURE_FRAME

Definition at line 5101 of file avcodec.h.

Function Documentation

◆ av_parser_iterate()

const AVCodecParser* av_parser_iterate ( void ** opaque )

Iterate over all registered codec parsers.

Parameters

opaque a pointer where libavcodec will store the iteration state. Must point to NULL to start the iteration.

Returns: the next registered codec parser or NULL when the iteration is finished

Definition at line 96 of file parsers.c.

Referenced by av_parser_init().

◆ av_parser_next()

attribute_deprecated AVCodecParser* av_parser_next ( const AVCodecParser * c )

Definition at line 86 of file parsers.c.

◆ av_register_codec_parser()

attribute_deprecated void av_register_codec_parser ( AVCodecParser * parser )

Definition at line 107 of file parsers.c.

◆ av_parser_init()

AVCodecParserContext* av_parser_init ( int codec_id )

Examples: decode_audio.c, and decode_video.c.

Definition at line 34 of file parser.c.

Referenced by avformat_find_stream_info(), ff_qsv_process_data(), flac_read_timestamp(), LLVMFuzzerTestOneInput(), main(), old_flac_header(), read_frame_internal(), and remove_extradata_init().

◆ av_parser_parse2()

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	buffer size in bytes without the padding. I.e. the full buffer size is assumed to be buf_size + AV_INPUT_BUFFER_PADDING_SIZE. 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);
}

Examples: decode_audio.c, and decode_video.c.

Definition at line 120 of file parser.c.

Referenced by ff_qsv_process_data(), flac_read_timestamp(), LLVMFuzzerTestOneInput(), main(), old_flac_header(), and parse_packet().

◆ av_parser_change()

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