vc1_parser.c File Reference

VC-1 and WMV3 parser. More...

#include "libavutil/attributes.h"
#include "parser.h"
#include "vc1.h"
#include "get_bits.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	VC1ParseContext

Macros
#define	UNESCAPED_THRESHOLD   37
	The maximum number of bytes of a sequence, entry point or frame header whose values we pay any attention to.
#define	UNESCAPED_LIMIT   144
	The maximum number of bytes of a sequence, entry point or frame header which must be valid memory (because they are used to update the bitstream cache in skip_bits() calls)

Enumerations
enum	VC1ParseSearchState { NO_MATCH, ONE_ZERO, TWO_ZEROS, ONE }

Functions
static void	vc1_extract_header (AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t *buf, int buf_size)
static int	vc1_parse (AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size)
static int	vc1_split (AVCodecContext *avctx, const uint8_t *buf, int buf_size)
static av_cold int	vc1_parse_init (AVCodecParserContext *s)

Variables
AVCodecParser	ff_vc1_parser

Detailed Description

VC-1 and WMV3 parser.

Definition in file vc1_parser.c.

Macro Definition Documentation

#define UNESCAPED_THRESHOLD   37

The maximum number of bytes of a sequence, entry point or frame header whose values we pay any attention to.

Definition at line 36 of file vc1_parser.c.

Referenced by vc1_parse().

#define UNESCAPED_LIMIT   144

The maximum number of bytes of a sequence, entry point or frame header which must be valid memory (because they are used to update the bitstream cache in skip_bits() calls)

Definition at line 42 of file vc1_parser.c.

Enumeration Type Documentation

enum VC1ParseSearchState

Enumerator:

NO_MATCH
ONE_ZERO
TWO_ZEROS
ONE

Definition at line 44 of file vc1_parser.c.

Function Documentation

static void vc1_extract_header ( AVCodecParserContext *  s, AVCodecContext *  avctx, const uint8_t *  buf, int  buf_size  )

static

Definition at line 61 of file vc1_parser.c.

Referenced by vc1_parse().

static int vc1_parse ( AVCodecParserContext *  s, AVCodecContext *  avctx, const uint8_t **  poutbuf, int *  poutbuf_size, const uint8_t *  buf, int  buf_size  )

static

Definition at line 120 of file vc1_parser.c.

static int vc1_split ( AVCodecContext *  avctx, const uint8_t *  buf, int  buf_size  )

static

Definition at line 251 of file vc1_parser.c.

static av_cold int vc1_parse_init ( AVCodecParserContext *  s )

static

Definition at line 269 of file vc1_parser.c.

Variable Documentation

AVCodecParser ff_vc1_parser

Initial value:

= {
    .codec_ids      = { AV_CODEC_ID_VC1 },
    .priv_data_size = sizeof(VC1ParseContext),
    .parser_init    = vc1_parse_init,
    .parser_parse   = vc1_parse,
    .parser_close   = ff_parse_close,
    .split          = vc1_split,
}

Definition at line 281 of file vc1_parser.c.