mirror of https://github.com/FFmpeg/FFmpeg.git
parent
ec6c1b1d83
commit
38f64c0330
3 changed files with 57 additions and 94 deletions
@ -1,92 +0,0 @@ |
|||||||
/*
|
|
||||||
* MPEG1/2 decoder tables |
|
||||||
* copyright (c) 2000,2001 Fabrice Bellard |
|
||||||
* copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
|
||||||
* |
|
||||||
* This file is part of Libav. |
|
||||||
* |
|
||||||
* Libav is free software; you can redistribute it and/or |
|
||||||
* modify it under the terms of the GNU Lesser General Public |
|
||||||
* License as published by the Free Software Foundation; either |
|
||||||
* version 2.1 of the License, or (at your option) any later version. |
|
||||||
* |
|
||||||
* Libav is distributed in the hope that it will be useful, |
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
||||||
* Lesser General Public License for more details. |
|
||||||
* |
|
||||||
* You should have received a copy of the GNU Lesser General Public |
|
||||||
* License along with Libav; if not, write to the Free Software |
|
||||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
||||||
*/ |
|
||||||
|
|
||||||
/**
|
|
||||||
* @file |
|
||||||
* MPEG1/2 decoder tables. |
|
||||||
*/ |
|
||||||
|
|
||||||
#ifndef AVCODEC_MPEG12DECDATA_H |
|
||||||
#define AVCODEC_MPEG12DECDATA_H |
|
||||||
|
|
||||||
#include <stdint.h> |
|
||||||
#include "mpegvideo.h" |
|
||||||
|
|
||||||
|
|
||||||
#define MB_TYPE_ZERO_MV 0x20000000 |
|
||||||
|
|
||||||
static const uint8_t table_mb_ptype[7][2] = { |
|
||||||
{ 3, 5 }, // 0x01 MB_INTRA
|
|
||||||
{ 1, 2 }, // 0x02 MB_PAT
|
|
||||||
{ 1, 3 }, // 0x08 MB_FOR
|
|
||||||
{ 1, 1 }, // 0x0A MB_FOR|MB_PAT
|
|
||||||
{ 1, 6 }, // 0x11 MB_QUANT|MB_INTRA
|
|
||||||
{ 1, 5 }, // 0x12 MB_QUANT|MB_PAT
|
|
||||||
{ 2, 5 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT
|
|
||||||
}; |
|
||||||
|
|
||||||
static const uint32_t ptype2mb_type[7] = { |
|
||||||
MB_TYPE_INTRA, |
|
||||||
MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_ZERO_MV | MB_TYPE_16x16, |
|
||||||
MB_TYPE_L0, |
|
||||||
MB_TYPE_L0 | MB_TYPE_CBP, |
|
||||||
MB_TYPE_QUANT | MB_TYPE_INTRA, |
|
||||||
MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_ZERO_MV | MB_TYPE_16x16, |
|
||||||
MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP, |
|
||||||
}; |
|
||||||
|
|
||||||
static const uint8_t table_mb_btype[11][2] = { |
|
||||||
{ 3, 5 }, // 0x01 MB_INTRA
|
|
||||||
{ 2, 3 }, // 0x04 MB_BACK
|
|
||||||
{ 3, 3 }, // 0x06 MB_BACK|MB_PAT
|
|
||||||
{ 2, 4 }, // 0x08 MB_FOR
|
|
||||||
{ 3, 4 }, // 0x0A MB_FOR|MB_PAT
|
|
||||||
{ 2, 2 }, // 0x0C MB_FOR|MB_BACK
|
|
||||||
{ 3, 2 }, // 0x0E MB_FOR|MB_BACK|MB_PAT
|
|
||||||
{ 1, 6 }, // 0x11 MB_QUANT|MB_INTRA
|
|
||||||
{ 2, 6 }, // 0x16 MB_QUANT|MB_BACK|MB_PAT
|
|
||||||
{ 3, 6 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT
|
|
||||||
{ 2, 5 }, // 0x1E MB_QUANT|MB_FOR|MB_BACK|MB_PAT
|
|
||||||
}; |
|
||||||
|
|
||||||
static const uint32_t btype2mb_type[11] = { |
|
||||||
MB_TYPE_INTRA, |
|
||||||
MB_TYPE_L1, |
|
||||||
MB_TYPE_L1 | MB_TYPE_CBP, |
|
||||||
MB_TYPE_L0, |
|
||||||
MB_TYPE_L0 | MB_TYPE_CBP, |
|
||||||
MB_TYPE_L0L1, |
|
||||||
MB_TYPE_L0L1 | MB_TYPE_CBP, |
|
||||||
MB_TYPE_QUANT | MB_TYPE_INTRA, |
|
||||||
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, |
|
||||||
}; |
|
||||||
|
|
||||||
static const uint8_t non_linear_qscale[32] = { |
|
||||||
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, |
|
||||||
}; |
|
||||||
|
|
||||||
#endif /* AVCODEC_MPEG12DECDATA_H */ |
|
Loading…
Reference in new issue