libavcodec/indeo4data.h

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/*
 * Indeo Video Interactive 4 compatible decoder
 * Copyright (c) 2009-2010 Maxim Poliakovski
 *
 * 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
 * This file contains data needed for the Indeo 4 decoder.
 */

#ifndef AVCODEC_INDEO4DATA_H
#define AVCODEC_INDEO4DATA_H

#include <stdint.h>

#include "ivi_common.h"
#include "mathops.h"

/**
 *  standard picture dimensions
 */
static const uint16_t ivi4_common_pic_sizes[14] = {
    640, 480, 320, 240, 160, 120, 704, 480, 352, 240, 352, 288, 176, 144
};

/**
 *  Indeo 4 8x8 scan (zigzag) patterns
 */
static const uint8_t ivi4_alternate_scan_8x8[64] = {
     0,  8,  1,  9, 16, 24,  2,  3, 17, 25, 10, 11, 32, 40, 48, 56,
     4,  5,  6,  7, 33, 41, 49, 57, 18, 19, 26, 27, 12, 13, 14, 15,
    34, 35, 43, 42, 50, 51, 59, 58, 20, 21, 22, 23, 31, 30, 29, 28,
    36, 37, 38, 39, 47, 46, 45, 44, 52, 53, 54, 55, 63, 62, 61, 60
};

static const uint8_t ivi4_alternate_scan_4x4[16] = {
    0, 1, 4, 5, 8, 12, 2, 3, 9, 13, 6, 7, 10, 11, 14, 15
};

static const uint8_t ivi4_vertical_scan_4x4[16] = {
    0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15
};

static const uint8_t ivi4_horizontal_scan_4x4[16] = {
    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
};

static const uint8_t * const scan_index_to_tab[15] = {
    // for 8x8 transforms
    ff_zigzag_direct,
    ivi4_alternate_scan_8x8,
    ff_ivi_horizontal_scan_8x8,
    ff_ivi_vertical_scan_8x8,
    ff_zigzag_direct,

    // for 4x4 transforms
    ff_ivi_direct_scan_4x4,
    ivi4_alternate_scan_4x4,
    ivi4_vertical_scan_4x4,
    ivi4_horizontal_scan_4x4,
    ff_ivi_direct_scan_4x4,

    // TODO: check if those are needed
    ff_ivi_horizontal_scan_8x8,
    ff_ivi_horizontal_scan_8x8,
    ff_ivi_horizontal_scan_8x8,
    ff_ivi_horizontal_scan_8x8,
    ff_ivi_horizontal_scan_8x8
};

/**
 *  Indeo 4 dequant tables
 */
static const uint16_t ivi4_quant_8x8_intra[9][64] = {
  {
      43,  342,  385,  470,  555,  555,  598,  726,
     342,  342,  470,  513,  555,  598,  726,  769,
     385,  470,  555,  555,  598,  726,  726,  811,
     470,  470,  555,  555,  598,  726,  769,  854,
     470,  555,  555,  598,  683,  726,  854, 1025,
     555,  555,  598,  683,  726,  854, 1025, 1153,
     555,  555,  598,  726,  811,  982, 1195, 1451,
     555,  598,  726,  811,  982, 1195, 1451, 1793
  },
  {
      86, 1195, 2390, 2390, 4865, 4865, 4865, 4865,
    1195, 1195, 2390, 2390, 4865, 4865, 4865, 4865,
    2390, 2390, 4865, 4865, 6827, 6827, 6827, 6827,
    2390, 2390, 4865, 4865, 6827, 6827, 6827, 6827,
    4865, 4865, 6827, 6827, 6827, 6827, 6827, 6827,
    4865, 4865, 6827, 6827, 6827, 6827, 6827, 6827,
    4865, 4865, 6827, 6827, 6827, 6827, 6827, 6827,
    4865, 4865, 6827, 6827, 6827, 6827, 6827, 6827
  },
  {
     235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
     235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
     235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
     235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
     235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
     235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
     235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
     235, 1067, 1195, 1323, 1451, 1579, 1707, 1835
  },
  {
    1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
    1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
    1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
    1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
    1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
    1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
    1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
    1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414
  },
  {
     897,  897,  897,  897,  897,  897,  897,  897,
    1067, 1067, 1067, 1067, 1067, 1067, 1067, 1067,
    1238, 1238, 1238, 1238, 1238, 1238, 1238, 1238,
    1409, 1409, 1409, 1409, 1409, 1409, 1409, 1409,
    1579, 1579, 1579, 1579, 1579, 1579, 1579, 1579,
    1750, 1750, 1750, 1750, 1750, 1750, 1750, 1750,
    1921, 1921, 1921, 1921, 1921, 1921, 1921, 1921,
    2091, 2091, 2091, 2091, 2091, 2091, 2091, 2091
  },
  {
    1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
    1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
    3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
    3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
    3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
    3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
    3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
    3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414
  },
  {
    2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
    2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
    2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
    2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
    2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
    2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
    2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
    2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390
  },
  {
      22,  171,  214,  257,  257,  299,  299,  342,
     171,  171,  257,  257,  299,  299,  342,  385,
     214,  257,  257,  299,  299,  342,  342,  385,
     257,  257,  257,  299,  299,  342,  385,  427,
     257,  257,  299,  299,  342,  385,  427,  513,
     257,  299,  299,  342,  385,  427,  513,  598,
     299,  299,  299,  385,  385,  470,  598,  726,
     299,  299,  385,  385,  470,  598,  726,  897
  },
  {
      86,  598, 1195, 1195, 2390, 2390, 2390, 2390,
     598,  598, 1195, 1195, 2390, 2390, 2390, 2390,
    1195, 1195, 2390, 2390, 3414, 3414, 3414, 3414,
    1195, 1195, 2390, 2390, 3414, 3414, 3414, 3414,
    2390, 2390, 3414, 3414, 3414, 3414, 3414, 3414,
    2390, 2390, 3414, 3414, 3414, 3414, 3414, 3414,
    2390, 2390, 3414, 3414, 3414, 3414, 3414, 3414,
    2390, 2390, 3414, 3414, 3414, 3414, 3414, 3414
  }
};

static const uint16_t ivi4_quant_8x8_inter[9][64] = {
  {
     427,  427,  470,  427,  427,  427,  470,  470,
     427,  427,  470,  427,  427,  427,  470,  470,
     470,  470,  470,  470,  470,  470,  470,  470,
     427,  427,  470,  470,  427,  427,  470,  470,
     427,  427,  470,  427,  427,  427,  470,  470,
     427,  427,  470,  427,  427,  427,  470,  470,
     470,  470,  470,  470,  470,  470,  470,  470,
     470,  470,  470,  470,  470,  470,  470,  470
  },
  {
    1707, 1707, 2433, 2433, 3414, 3414, 3414, 3414,
    1707, 1707, 2433, 2433, 3414, 3414, 3414, 3414,
    2433, 2433, 3414, 3414, 4822, 4822, 4822, 4822,
    2433, 2433, 3414, 3414, 4822, 4822, 4822, 4822,
    3414, 3414, 4822, 4822, 3414, 3414, 3414, 3414,
    3414, 3414, 4822, 4822, 3414, 3414, 3414, 3414,
    3414, 3414, 4822, 4822, 3414, 3414, 3414, 3414,
    3414, 3414, 4822, 4822, 3414, 3414, 3414, 3414
  },
  {
    1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
    1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
    1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
    1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
    1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
    1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
    1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
    1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281
  },
  {
    2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
    2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
    2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
    2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
    2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
    2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
    2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
    2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433
  },
  {
    1195, 1195, 1195, 1195, 1195, 1195, 1195, 1195,
    1195, 1195, 1195, 1195, 1195, 1195, 1195, 1195,
    1281, 1281, 1281, 1281, 1281, 1281, 1281, 1281,
    1238, 1238, 1238, 1238, 1238, 1238, 1238, 1238,
    1195, 1195, 1195, 1195, 1195, 1195, 1195, 1195,
    1195, 1195, 1195, 1195, 1195, 1195, 1195, 1195,
    1281, 1281, 1281, 1281, 1281, 1281, 1281, 1281,
    1281, 1281, 1281, 1281, 1281, 1281, 1281, 1281
  },
  {
    2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433,
    2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433,
    3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
    3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
    2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433,
    2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433,
    2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433,
    2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433
  },
  {
    1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
    1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
    1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
    1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
    1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
    1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
    1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
    1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707
  },
  {
      86,  171,  171,  214,  214,  214,  214,  257,
     171,  171,  214,  214,  214,  214,  257,  257,
     171,  214,  214,  214,  214,  257,  257,  257,
     214,  214,  214,  214,  257,  257,  257,  299,
     214,  214,  214,  257,  257,  257,  299,  299,
     214,  214,  257,  257,  257,  299,  299,  299,
     214,  257,  257,  257,  299,  299,  299,  342,
     257,  257,  257,  299,  299,  299,  342,  342
  },
  {
     854,  854, 1195, 1195, 1707, 1707, 1707, 1707,
     854,  854, 1195, 1195, 1707, 1707, 1707, 1707,
    1195, 1195, 1707, 1707, 2390, 2390, 2390, 2390,
    1195, 1195, 1707, 1707, 2390, 2390, 2390, 2390,
    1707, 1707, 2390, 2390, 1707, 1707, 1707, 1707,
    1707, 1707, 2390, 2390, 1707, 1707, 1707, 1707,
    1707, 1707, 2390, 2390, 1707, 1707, 1707, 1707,
    1707, 1707, 2390, 2390, 1707, 1707, 1707, 1707
  }
};

static const uint16_t ivi4_quant_4x4_intra[5][16] = {
  {
      22,  214,  257,  299,
     214,  257,  299,  342,
     257,  299,  342,  427,
     299,  342,  427,  513
  },
  {
     129, 1025, 1451, 1451,
    1025, 1025, 1451, 1451,
    1451, 1451, 2049, 2049,
    1451, 1451, 2049, 2049
  },
  {
      43,  171,  171,  171,
      43,  171,  171,  171,
      43,  171,  171,  171,
      43,  171,  171,  171
  },
  {
      43,   43,   43,   43,
     171,  171,  171,  171,
     171,  171,  171,  171,
     171,  171,  171,  171
  },
  {
      43,   43,   43,   43,
      43,   43,   43,   43,
      43,   43,   43,   43,
      43,   43,   43,   43
  }
};

static const uint16_t ivi4_quant_4x4_inter[5][16] = {
  {
     107,  214,  257,  299,
     214,  257,  299,  299,
     257,  299,  299,  342,
     299,  299,  342,  342
  },
  {
     513, 1025, 1238, 1238,
    1025, 1025, 1238, 1238,
    1238, 1238, 1451, 1451,
    1238, 1238, 1451, 1451
  },
  {
      43,  171,  171,  171,
      43,  171,  171,  171,
      43,  171,  171,  171,
      43,  171,  171,  171
  },
  {
      43,   43,   43,   43,
     171,  171,  171,  171,
     171,  171,  171,  171,
     171,  171,  171,  171
  },
  {
      43,   43,   43,   43,
      43,   43,   43,   43,
      43,   43,   43,   43,
      43,   43,   43,   43
  }
};

/**
 *  Table for mapping quant matrix index from the bitstream
 *  into internal quant table number.
 */
static const uint8_t quant_index_to_tab[22] = {
    0, 1, 0, 2, 1, 3, 0, 4, 1, 5, 0, 1, 6, 7, 8, // for 8x8 quant matrixes
    0, 1, 2, 2, 3, 3, 4                          // for 4x4 quant matrixes
};

#endif /* AVCODEC_INDEO4DATA_H */
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root/libavcodec/indeo4data.h

INCLUDED FROM
