/*
  * 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 "libavutil/channel_layout.h"

 #include "aac.h"
 
 #include <stdint.h>
 

 /* @name ltp_coef

  * Table of the LTP coefficients

  */
 static const float ltp_coef[8] = {

     0.570829, 0.696616, 0.813004, 0.911304,
     0.984900, 1.067894, 1.194601, 1.369533,

 };
 

 /* @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][3] = {
     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, },
     { { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },

     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, },
     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, },
     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_FRONT }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },

 };
 

 static const uint64_t aac_channel_layout[8] = {

     AV_CH_LAYOUT_MONO,
     AV_CH_LAYOUT_STEREO,
     AV_CH_LAYOUT_SURROUND,
     AV_CH_LAYOUT_4POINT0,
     AV_CH_LAYOUT_5POINT0_BACK,
     AV_CH_LAYOUT_5POINT1_BACK,

     AV_CH_LAYOUT_7POINT1_WIDE_BACK,

     0,
 };
 

 #endif /* AVCODEC_AACDECTAB_H */