mpeg12.h File Reference

#include "mpegvideo.h"

Go to the source code of this file.

Macros
#define	DC_VLC_BITS   9
#define	MV_VLC_BITS   9
#define	TEX_VLC_BITS   9
#define	MBINCR_VLC_BITS   9
#define	MB_PAT_VLC_BITS   9
#define	MB_PTYPE_VLC_BITS   6
#define	MB_BTYPE_VLC_BITS   6

Functions
void	ff_mpeg12_common_init (MpegEncContext *s)
void	ff_mpeg12_init_vlcs (void)
static int	decode_dc (GetBitContext *gb, int component)
int	ff_mpeg1_decode_block_intra (MpegEncContext *s, int16_t *block, int n)
void	ff_mpeg1_clean_buffers (MpegEncContext *s)
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.

Variables
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
VLC	ff_mv_vlc
uint8_t	ff_mpeg12_static_rl_table_store [2][2][2 *MAX_RUN+MAX_LEVEL+3]

Macro Definition Documentation

#define DC_VLC_BITS   9

Definition at line 27 of file mpeg12.h.

Referenced by decode_dc().

#define MV_VLC_BITS   9

Definition at line 28 of file mpeg12.h.

#define TEX_VLC_BITS   9

Definition at line 29 of file mpeg12.h.

#define MBINCR_VLC_BITS   9

Definition at line 31 of file mpeg12.h.

Referenced by ff_mpeg12_init_vlcs(), and mpeg_decode_slice().

#define MB_PAT_VLC_BITS   9

Definition at line 32 of file mpeg12.h.

Referenced by ff_mpeg12_init_vlcs(), and mpeg_decode_mb().

#define MB_PTYPE_VLC_BITS   6

Definition at line 33 of file mpeg12.h.

Referenced by ff_mpeg12_init_vlcs(), and mpeg_decode_mb().

#define MB_BTYPE_VLC_BITS   6

Definition at line 34 of file mpeg12.h.

Referenced by ff_mpeg12_init_vlcs(), and mpeg_decode_mb().

Function Documentation

void ff_mpeg12_common_init

(

MpegEncContext *

s

)

Definition at line 114 of file mpeg12.c.

Referenced by ff_mpeg1_encode_init(), and mpeg_decode_init().

void ff_mpeg12_init_vlcs

(

void

)

Definition at line 144 of file mpeg12.c.

Referenced by decode_init(), mpeg_decode_init(), and tqi_decode_init().

static int decode_dc ( GetBitContext *  gb, int  component  )

inlinestatic

Definition at line 49 of file mpeg12.h.

Referenced by mdec_decode_block_intra(), mpeg1_decode_block_intra(), mpeg2_decode_block_intra(), and mpeg2_fast_decode_block_intra().

int ff_mpeg1_decode_block_intra	(	MpegEncContext *	s,
		int16_t *	block,
		int	n
	)

Definition at line 221 of file mpeg12dec.c.

Referenced by tqi_decode_mb().

void ff_mpeg1_clean_buffers

(

MpegEncContext *

s

)

Definition at line 122 of file mpeg12.c.

Referenced by encode_thread(), and mpeg_decode_slice().

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

Definition at line 185 of file mpeg12.c.

Referenced by mpeg_decode_frame(), and mpegvideo_parse().

Variable Documentation

VLC ff_dc_lum_vlc

Definition at line 136 of file mpeg12.c.

VLC ff_dc_chroma_vlc

Definition at line 137 of file mpeg12.c.

VLC ff_mbincr_vlc

Definition at line 139 of file mpeg12.c.

Referenced by mpeg_decode_slice().

VLC ff_mb_ptype_vlc

Definition at line 140 of file mpeg12.c.

Referenced by mpeg_decode_mb().

VLC ff_mb_btype_vlc

Definition at line 141 of file mpeg12.c.

Referenced by mpeg_decode_mb().

VLC ff_mb_pat_vlc

Definition at line 142 of file mpeg12.c.

Referenced by mpeg_decode_mb().

VLC ff_mv_vlc

Definition at line 134 of file mpeg12.c.

Referenced by mpeg_decode_motion().

uint8_t ff_mpeg12_static_rl_table_store[2][2][2 *MAX_RUN+MAX_LEVEL+3]

Definition at line 44 of file mpeg12.c.

Referenced by ff_mpeg12_init_vlcs(), and ff_mpeg1_encode_init().