libavcodec/rv40data.h
e082f4a8
 /*
  * RealVideo 4 decoder
  * copyright (c) 2007 Konstantin Shishkov
  *
  * 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
  */
 
 /**
ba87f080
  * @file
c47e20e6
  * miscellaneous RV40 tables
e082f4a8
  */
 
98790382
 #ifndef AVCODEC_RV40DATA_H
 #define AVCODEC_RV40DATA_H
e082f4a8
 
 #include <stdint.h>
 
 /**
c47e20e6
  * standard widths and heights coded in RV40
e082f4a8
  */
 //@{
 static const int rv40_standard_widths[]   = { 160, 172, 240, 320, 352, 640, 704, 0};
dbf71504
 static const int rv40_standard_heights[]  = { 120, 132, 144, 240, 288, 480, -8, -10, 180, 360, 576, 0};
e082f4a8
 //@}
 
 #define MODE2_PATTERNS_NUM 20
 /**
c47e20e6
  * intra types table
e082f4a8
  *
  * These values are actually coded 3-tuples
c47e20e6
  * used for detecting standard block configurations.
e082f4a8
  */
 static const uint16_t rv40_aic_table_index[MODE2_PATTERNS_NUM] = {
  0x000, 0x100, 0x200,
  0x011, 0x111, 0x211, 0x511, 0x611,
  0x022, 0x122, 0x222, 0x722,
  0x272, 0x227,
  0x822, 0x282, 0x228,
  0x112, 0x116, 0x221
 };
 
 /**
c47e20e6
  * luma quantizer values
  * The second table is used for inter blocks.
e082f4a8
  */
 static const uint8_t rv40_luma_dc_quant[2][32] = {
  {  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
    16, 17, 17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 22, 22, 22, 22 },
  {  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
    16, 17, 18, 19, 20, 20, 21, 21, 22, 23, 23, 23, 24, 24, 24, 24 }
 };
 
 /**
21a19b79
  * @name Coefficients used by the RV40 loop filter
e082f4a8
  * @{
  */
 
 /** alpha parameter for RV40 loop filter - almost the same as in JVT-A003r1 */
 static const uint8_t rv40_alpha_tab[32] = {
     128, 128, 128, 128, 128, 128, 128, 128,
     128, 128, 122,  96,  75,  59,  47,  37,
      29,  23,  18,  15,  13,  11,  10,   9,
       8,   7,   6,   5,   4,   3,   2,   1
 };
 /** beta parameter for RV40 loop filter - almost the same as in JVT-A003r1 */
 static const uint8_t rv40_beta_tab[32] = {
      0,  0,  0,  0,  0,  0,  0,  0,  3,  3,  3,  4,  4,  4,  6,  6,
      6,  7,  8,  8,  9,  9, 10, 10, 11, 11, 12, 13, 14, 15, 16, 17
 };
 /** clip table for RV40 loop filter - the same as in JVT-A003r1 */
 static const uint8_t rv40_filter_clip_tbl[3][32] = {
     {
         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, 0, 0, 0, 0
     },
     {
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 5, 5
     },
     {
         0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1,
         1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 5, 5, 5, 7, 8, 9
     }
 };
 /** @} */ // end loopfilter group
 
98790382
 #endif /* AVCODEC_RV40DATA_H */