Frame parsing
[Decoding]

Data Structures
struct	AVCodecParserContext
struct	AVCodecParser
Functions
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)

---

Function Documentation

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 174 of file parser.c.

Referenced by do_streamcopy().

void av_parser_close

(

AVCodecParserContext *

s

)

Definition at line 207 of file parser.c.

Referenced by av_bitstream_filter_close(), check_format(), estimate_timings_from_pts(), ff_free_parser_state(), ff_free_stream(), ff_read_frame_flush(), and uninit().

AVCodecParserContext* av_parser_init

(

int

codec_id

)

Definition at line 41 of file parser.c.

Referenced by avformat_find_stream_info(), check_format(), init(), read_frame_internal(), and remove_extradata().

AVCodecParser* av_parser_next

(

AVCodecParser *

c

)

Definition at line 30 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 111 of file parser.c.

Referenced by check_format(), decode(), and parse_packet().

void av_register_codec_parser

(

AVCodecParser *

parser

)

Definition at line 35 of file parser.c.