text: /*
   * AAC decoder data
   * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
   * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
   *
   * 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
   * AAC decoder data
   * @author Oded Shimon  ( ods15 ods15 dyndns org )
   * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
   */
  
  #ifndef AVCODEC_AACDECTAB_H
  #define AVCODEC_AACDECTAB_H
  
  #include "aac.h"
  
  #include <stdint.h>
  
  /* @name tns_tmp2_map
   * Tables of the tmp2[] arrays of LPC coefficients used for TNS.
   * The suffix _M_N[] indicate the values of coef_compress and coef_res
   * respectively.
   * @{
   */
  static const float tns_tmp2_map_1_3[4] = {
       0.00000000, -0.43388373,  0.64278758,  0.34202015,
  };
  
  static const float tns_tmp2_map_0_3[8] = {
       0.00000000, -0.43388373, -0.78183150, -0.97492790,
       0.98480773,  0.86602539,  0.64278758,  0.34202015,
  };
  
  static const float tns_tmp2_map_1_4[8] = {
       0.00000000, -0.20791170, -0.40673664, -0.58778524,
       0.67369562,  0.52643216,  0.36124167,  0.18374951,
  };
  
  static const float tns_tmp2_map_0_4[16] = {
       0.00000000, -0.20791170, -0.40673664, -0.58778524,
      -0.74314481, -0.86602539, -0.95105654, -0.99452192,
       0.99573416,  0.96182561,  0.89516330,  0.79801720,
       0.67369562,  0.52643216,  0.36124167,  0.18374951,
  };
  
  static const float * const tns_tmp2_map[4] = {
      tns_tmp2_map_0_3,
      tns_tmp2_map_0_4,
      tns_tmp2_map_1_3,
      tns_tmp2_map_1_4
  };
  // @}
  
  static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 0, 0, 0, 0, 0 };
  
  static const uint8_t aac_channel_layout_map[7][5][2] = {
      { { TYPE_SCE, 0 }, },
      { { TYPE_CPE, 0 }, },
      { { TYPE_CPE, 0 }, { TYPE_SCE, 0 }, },
      { { TYPE_CPE, 0 }, { TYPE_SCE, 0 }, { TYPE_SCE, 1 }, },
      { { TYPE_CPE, 0 }, { TYPE_SCE, 0 }, { TYPE_CPE, 1 }, },
      { { TYPE_CPE, 0 }, { TYPE_SCE, 0 }, { TYPE_LFE, 0 }, { TYPE_CPE, 1 }, },
      { { TYPE_CPE, 0 }, { TYPE_SCE, 0 }, { TYPE_LFE, 0 }, { TYPE_CPE, 2 }, { TYPE_CPE, 1 }, },
  };
  
  static const int64_t aac_channel_layout[8] = {
      CH_LAYOUT_MONO,
      CH_LAYOUT_STEREO,
      CH_LAYOUT_SURROUND,
      CH_LAYOUT_4POINT0,
      CH_LAYOUT_5POINT0_BACK,
      CH_LAYOUT_5POINT1_BACK,
      CH_LAYOUT_7POINT1_WIDE,
      0,
  };
  
  #endif /* AVCODEC_AACDECTAB_H */
  