/*
  * MPEG1/2 decoder tables
  * copyright (c) 2000,2001 Fabrice Bellard
  * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg 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.
  *
  * FFmpeg 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 FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**

  * @file libavcodec/mpeg12decdata.h

  * MPEG1/2 decoder tables.
  */
 

 #ifndef AVCODEC_MPEG12DECDATA_H
 #define AVCODEC_MPEG12DECDATA_H

 
 #include <stdint.h>
 #include "mpegvideo.h"
 
 
 #define MB_TYPE_ZERO_MV   0x20000000
 #define IS_ZERO_MV(a)   ((a)&MB_TYPE_ZERO_MV)
 
 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,
 };
 
 static const uint8_t mpeg2_dc_scale_table1[128]={
 //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
 };
 
 static const uint8_t mpeg2_dc_scale_table2[128]={
 //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
     2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
     2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
     2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
     2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 };
 
 static const uint8_t mpeg2_dc_scale_table3[128]={
 //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
     1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
     1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
     1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
     1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 };
 

 static const uint8_t * const mpeg2_dc_scale_table[4]={

     ff_mpeg1_dc_scale_table,
     mpeg2_dc_scale_table1,
     mpeg2_dc_scale_table2,
     mpeg2_dc_scale_table3,
 };
 

 #endif /* AVCODEC_MPEG12DECDATA_H */