mpeg12.c File Reference

MPEG-1/2 decoder. More...

#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/timecode.h"
#include "internal.h"
#include "avcodec.h"
#include "mpegvideo.h"
#include "error_resilience.h"
#include "mpeg12.h"
#include "mpeg12data.h"
#include "mpegvideodata.h"
#include "bytestream.h"
#include "thread.h"

Macros
#define	UNCHECKED_BITSTREAM_READER   1
#define	MAX_INDEX   (64 - 1)

Functions
av_cold void	ff_init_2d_vlc_rl (RLTable *rl, unsigned static_size, int flags)
av_cold void	ff_mpeg12_common_init (MpegEncContext *s)
void	ff_mpeg1_clean_buffers (MpegEncContext *s)
av_cold void	ff_mpeg12_init_vlcs (void)
int	ff_mpeg1_find_frame_end (ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s)
	Find the end of the current frame in the bitstream. More...
int	ff_mpeg1_decode_block_intra (GetBitContext *gb, const uint16_t *quant_matrix, uint8_t *const scantable, int last_dc[3], int16_t *block, int index, int qscale)

Variables
uint8_t	ff_mpeg12_static_rl_table_store [2][2][2 *MAX_RUN+MAX_LEVEL+3]
VLC	ff_mv_vlc
VLC	ff_dc_lum_vlc
VLC	ff_dc_chroma_vlc
VLC	ff_mbincr_vlc
VLC	ff_mb_ptype_vlc
VLC	ff_mb_btype_vlc
VLC	ff_mb_pat_vlc

Detailed Description

MPEG-1/2 decoder.

Function Documentation

ff_mpeg1_find_frame_end()

int ff_mpeg1_find_frame_end	(	ParseContext *	pc,
		const uint8_t *	buf,
		int	buf_size,
		AVCodecParserContext *	s
	)

Find the end of the current frame in the bitstream.

Returns

the position of the first byte of the next frame, or -1