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mpeg12decdata.h File Reference

MPEG1/2 decoder tables. More...

#include <stdint.h>
#include "mpegvideo.h"

Go to the source code of this file.

Macros

#define MB_TYPE_ZERO_MV   0x20000000
 
#define IS_ZERO_MV(a)   ((a)&MB_TYPE_ZERO_MV)
 

Variables

static const uint8_t table_mb_ptype [7][2]
 
static const uint32_t ptype2mb_type [7]
 
static const uint8_t table_mb_btype [11][2]
 
static const uint32_t btype2mb_type [11]
 
static const uint8_t non_linear_qscale [32]
 

Detailed Description

MPEG1/2 decoder tables.

Definition in file mpeg12decdata.h.

Macro Definition Documentation

#define MB_TYPE_ZERO_MV   0x20000000

Definition at line 35 of file mpeg12decdata.h.

Referenced by mpeg_decode_mb().

#define IS_ZERO_MV (   a)    ((a)&MB_TYPE_ZERO_MV)

Definition at line 36 of file mpeg12decdata.h.

Variable Documentation

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 38 of file mpeg12decdata.h.

Referenced by ff_mpeg12_init_vlcs().

const uint32_t ptype2mb_type[7]
static
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 },
}

Definition at line 58 of file mpeg12decdata.h.

Referenced by ff_mpeg12_init_vlcs().

const uint32_t btype2mb_type[11]
static
Initial value:
= {
MB_TYPE_L1 | MB_TYPE_CBP,
MB_TYPE_L0 | MB_TYPE_CBP,
MB_TYPE_L0L1 | MB_TYPE_CBP,
MB_TYPE_QUANT | MB_TYPE_L1 | MB_TYPE_CBP,
MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP,
MB_TYPE_QUANT | MB_TYPE_L0L1 | MB_TYPE_CBP,
}

Definition at line 72 of file mpeg12decdata.h.

Referenced by mpeg_decode_mb().

const uint8_t non_linear_qscale[32]
static
Initial value:
= {
0, 1, 2, 3, 4, 5, 6, 7,
8,10,12,14,16,18,20,22,
24,28,32,36,40,44,48,52,
56,64,72,80,88,96,104,112,
}

Definition at line 86 of file mpeg12decdata.h.

Referenced by get_qscale().