#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "mpegvideo.h"
#include "mpeg12.h"
#include "mpeg12codecs.h"
#include "mpeg12data.h"
#include "mpeg12dec.h"
#include "rl.h"
#include "startcode.h"

Macros
#define	UNCHECKED_BITSTREAM_READER 1

#define	MAX_INDEX (64 - 1)

Functions
av_cold void	ff_init_2d_vlc_rl (const uint16_t table_vlc[][2], RL_VLC_ELEM rl_vlc[], const int8_t table_run[], const uint8_t table_level[], int n, unsigned static_size, int flags)

void	ff_mpeg1_clean_buffers (MpegEncContext *s)

static av_cold void	mpeg12_init_vlcs (void)

av_cold void	ff_mpeg12_init_vlcs (void)

int	ff_mpeg1_decode_block_intra (GetBitContext gb, const uint16_t quant_matrix, const uint8_t scantable, int last_dc[3], int16_t block, int index, int qscale)

Variables
static const uint8_t	table_mb_ptype [7][2]

static const uint8_t	table_mb_btype [11][2]

VLCElem	ff_mv_vlc [266]

VLCElem	ff_dc_lum_vlc [512]

VLCElem	ff_dc_chroma_vlc [514]

VLCElem	ff_mbincr_vlc [538]

VLCElem	ff_mb_ptype_vlc [64]

VLCElem	ff_mb_btype_vlc [64]

VLCElem	ff_mb_pat_vlc [512]

RL_VLC_ELEM	ff_mpeg1_rl_vlc [680]

RL_VLC_ELEM	ff_mpeg2_rl_vlc [674]

Detailed Description

MPEG-1/2 decoder

Definition in file mpeg12.c.

Macro Definition Documentation

◆ UNCHECKED_BITSTREAM_READER

#define UNCHECKED_BITSTREAM_READER 1

Definition at line 28 of file mpeg12.c.

◆ MAX_INDEX

#define MAX_INDEX (64 - 1)

Definition at line 170 of file mpeg12.c.

Function Documentation

◆ ff_init_2d_vlc_rl()

av_cold void ff_init_2d_vlc_rl	(	const uint16_t	table_vlc[][2],
		RL_VLC_ELEM	rl_vlc[],
		const int8_t	table_run[],
		const uint8_t	table_level[],
		int	n,
		unsigned	static_size,
		int	flags
	)

Definition at line 67 of file mpeg12.c.

Referenced by mpeg12_init_vlcs(), and speedhq_static_init().

◆ ff_mpeg1_clean_buffers()

void ff_mpeg1_clean_buffers ( MpegEncContext * s )

Definition at line 106 of file mpeg12.c.

Referenced by encode_thread(), and mpeg_decode_slice().

◆ mpeg12_init_vlcs()

static av_cold void mpeg12_init_vlcs ( void )

static

Definition at line 131 of file mpeg12.c.

Referenced by ff_mpeg12_init_vlcs().

◆ ff_mpeg12_init_vlcs()

av_cold void ff_mpeg12_init_vlcs ( void )

Definition at line 164 of file mpeg12.c.

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

◆ ff_mpeg1_decode_block_intra()

int ff_mpeg1_decode_block_intra	(	GetBitContext *	gb,
		const uint16_t *	quant_matrix,
		const uint8_t *	scantable,
		int	last_dc[3],
		int16_t *	block,
		int	index,
		int	qscale
	)

Definition at line 172 of file mpeg12.c.

Referenced by ipu_decode_frame(), mpeg_decode_mb(), and tqi_decode_mb().

Variable Documentation

◆ table_mb_ptype

const uint8_t table_mb_ptype[7][2]

static

Initial value:

= {
    { 3, 5 }, 
    { 1, 2 }, 
    { 1, 3 }, 
    { 1, 1 }, 
    { 1, 6 }, 
    { 1, 5 }, 
    { 2, 5 }, 
}

Definition at line 43 of file mpeg12.c.

Referenced by mpeg12_init_vlcs().

◆ table_mb_btype

const uint8_t table_mb_btype[11][2]

static

Initial value:

= {
    { 3, 5 }, 
    { 2, 3 }, 
    { 3, 3 }, 
    { 2, 4 }, 
    { 3, 4 }, 
    { 2, 2 }, 
    { 3, 2 }, 
    { 1, 6 }, 
    { 2, 6 }, 
    { 3, 6 }, 
    { 2, 5 }, 
}