vc1_parser.c File Reference

VC-1 and WMV3 parser. More...

#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "parser.h"
#include "parser_internal.h"
#include "vc1.h"
#include "get_bits.h"
#include "vc1dsp.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 av_cold int	vc1_parse_init (AVCodecParserContext *s)

Variables
const FFCodecParser	ff_vc1_parser

Detailed Description

VC-1 and WMV3 parser.

Definition in file vc1_parser.c.

Macro Definition Documentation

UNESCAPED_THRESHOLD

#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 38 of file vc1_parser.c.

Referenced by vc1_parse().

UNESCAPED_LIMIT

#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 44 of file vc1_parser.c.

Enumeration Type Documentation

VC1ParseSearchState

enum VC1ParseSearchState

Enumerator
NO_MATCH
ONE_ZERO
TWO_ZEROS
ONE

Definition at line 46 of file vc1_parser.c.

Function Documentation

vc1_extract_header()

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

static

Definition at line 63 of file vc1_parser.c.

Referenced by vc1_parse().

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 128 of file vc1_parser.c.

vc1_parse_init()

static av_cold int vc1_parse_init ( AVCodecParserContext * s )

static

Definition at line 261 of file vc1_parser.c.

Variable Documentation

ff_vc1_parser

const FFCodecParser ff_vc1_parser

Initial value:

= {
    PARSER_CODEC_LIST(AV_CODEC_ID_VC1),
    .priv_data_size = sizeof(VC1ParseContext),
    .init           = vc1_parse_init,
    .parse          = vc1_parse,
    .close          = ff_parse_close,
}

Definition at line 275 of file vc1_parser.c.