/*
  * Constants for DV codec
  * Copyright (c) 2002 Fabrice Bellard
  *
  * 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

  * Constants for DV codec.
  */
 
 #include "avcodec.h"
 #include "dvdata.h"
 

 /* unquant tables (not used directly) */
 const uint8_t ff_dv_quant_shifts[22][4] = {
   { 3,3,4,4 },
   { 3,3,4,4 },
   { 2,3,3,4 },
   { 2,3,3,4 },
   { 2,2,3,3 },
   { 2,2,3,3 },
   { 1,2,2,3 },
   { 1,2,2,3 },
   { 1,1,2,2 },
   { 1,1,2,2 },
   { 0,1,1,2 },
   { 0,1,1,2 },
   { 0,0,1,1 },
   { 0,0,1,1 },
   { 0,0,0,1 },
   { 0,0,0,0 },
   { 0,0,0,0 },
   { 0,0,0,0 },
   { 0,0,0,0 },
   { 0,0,0,0 },
   { 0,0,0,0 },
   { 0,0,0,0 },
 };
 
 const uint8_t ff_dv_quant_offset[4] = { 6,  3,  0,  1 };
 
 const int ff_dv_iweight_88[64] = {
  32768, 16710, 16710, 17735, 17015, 17735, 18197, 18079,
  18079, 18197, 18725, 18559, 19196, 18559, 18725, 19284,
  19108, 19692, 19692, 19108, 19284, 21400, 19645, 20262,
  20214, 20262, 19645, 21400, 22733, 21845, 20867, 20815,
  20815, 20867, 21845, 22733, 23173, 23173, 21400, 21400,
  21400, 23173, 23173, 24600, 23764, 22017, 22017, 23764,
  24600, 25267, 24457, 22672, 24457, 25267, 25971, 25191,
  25191, 25971, 26715, 27962, 26715, 29642, 29642, 31536,
 };
 const int ff_dv_iweight_248[64] = {
  32768, 17735, 16710, 18079, 18725, 21400, 17735, 19196,
  19108, 21845, 16384, 17735, 18725, 21400, 16710, 18079,
  20262, 23173, 18197, 19692, 18725, 20262, 20815, 23764,
  17735, 19196, 19108, 21845, 20262, 23173, 18197, 19692,
  21400, 24457, 19284, 20867, 21400, 23173, 22017, 25191,
  18725, 20262, 20815, 23764, 21400, 24457, 19284, 20867,
  24457, 27962, 22733, 24600, 25971, 29642, 21400, 23173,
  22017, 25191, 24457, 27962, 22733, 24600, 25971, 29642,
 };
 
 /**
  * The "inverse" DV100 weights are actually just the spec weights (zig-zagged).
  */
 const int ff_dv_iweight_1080_y[64] = {
     128,  16,  16,  17,  17,  17,  18,  18,
      18,  18,  18,  18,  19,  18,  18,  19,
      19,  19,  19,  19,  19,  42,  38,  40,
      40,  40,  38,  42,  44,  43,  41,  41,
      41,  41,  43,  44,  45,  45,  42,  42,
      42,  45,  45,  48,  46,  43,  43,  46,
      48,  49,  48,  44,  48,  49, 101,  98,
      98, 101, 104, 109, 104, 116, 116, 123,
 };
 const int ff_dv_iweight_1080_c[64] = {
     128,  16,  16,  17,  17,  17,  25,  25,
      25,  25,  26,  25,  26,  25,  26,  26,
      26,  27,  27,  26,  26,  42,  38,  40,
      40,  40,  38,  42,  44,  43,  41,  41,
      41,  41,  43,  44,  91,  91,  84,  84,
      84,  91,  91,  96,  93,  86,  86,  93,
      96, 197, 191, 177, 191, 197, 203, 197,
     197, 203, 209, 219, 209, 232, 232, 246,
 };
 const int ff_dv_iweight_720_y[64] = {
     128,  16,  16,  17,  17,  17,  18,  18,
      18,  18,  18,  18,  19,  18,  18,  19,
      19,  19,  19,  19,  19,  42,  38,  40,
      40,  40,  38,  42,  44,  43,  41,  41,
      41,  41,  43,  44,  68,  68,  63,  63,
      63,  68,  68,  96,  92,  86,  86,  92,
      96,  98,  96,  88,  96,  98, 202, 196,
     196, 202, 208, 218, 208, 232, 232, 246,
 };
 const int ff_dv_iweight_720_c[64] = {
     128,  24,  24,  26,  26,  26,  36,  36,
      36,  36,  36,  36,  38,  36,  36,  38,
      38,  38,  38,  38,  38,  84,  76,  80,
      80,  80,  76,  84,  88,  86,  82,  82,
      82,  82,  86,  88, 182, 182, 168, 168,
     168, 182, 182, 192, 186, 192, 172, 186,
     192, 394, 382, 354, 382, 394, 406, 394,
     394, 406, 418, 438, 418, 464, 464, 492,
 };