yading@10: /*
yading@10:  * AAC decoder data
yading@10:  * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
yading@10:  * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: /**
yading@10:  * @file
yading@10:  * AAC decoder data
yading@10:  * @author Oded Shimon  ( ods15 ods15 dyndns org )
yading@10:  * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
yading@10:  */
yading@10: 
yading@10: #ifndef AVCODEC_AACDECTAB_H
yading@10: #define AVCODEC_AACDECTAB_H
yading@10: 
yading@10: #include "libavutil/channel_layout.h"
yading@10: #include "aac.h"
yading@10: 
yading@10: #include <stdint.h>
yading@10: 
yading@10: /* @name ltp_coef
yading@10:  * Table of the LTP coefficients
yading@10:  */
yading@10: static const float ltp_coef[8] = {
yading@10:     0.570829, 0.696616, 0.813004, 0.911304,
yading@10:     0.984900, 1.067894, 1.194601, 1.369533,
yading@10: };
yading@10: 
yading@10: /* @name tns_tmp2_map
yading@10:  * Tables of the tmp2[] arrays of LPC coefficients used for TNS.
yading@10:  * The suffix _M_N[] indicate the values of coef_compress and coef_res
yading@10:  * respectively.
yading@10:  * @{
yading@10:  */
yading@10: static const float tns_tmp2_map_1_3[4] = {
yading@10:      0.00000000, -0.43388373,  0.64278758,  0.34202015,
yading@10: };
yading@10: 
yading@10: static const float tns_tmp2_map_0_3[8] = {
yading@10:      0.00000000, -0.43388373, -0.78183150, -0.97492790,
yading@10:      0.98480773,  0.86602539,  0.64278758,  0.34202015,
yading@10: };
yading@10: 
yading@10: static const float tns_tmp2_map_1_4[8] = {
yading@10:      0.00000000, -0.20791170, -0.40673664, -0.58778524,
yading@10:      0.67369562,  0.52643216,  0.36124167,  0.18374951,
yading@10: };
yading@10: 
yading@10: static const float tns_tmp2_map_0_4[16] = {
yading@10:      0.00000000, -0.20791170, -0.40673664, -0.58778524,
yading@10:     -0.74314481, -0.86602539, -0.95105654, -0.99452192,
yading@10:      0.99573416,  0.96182561,  0.89516330,  0.79801720,
yading@10:      0.67369562,  0.52643216,  0.36124167,  0.18374951,
yading@10: };
yading@10: 
yading@10: static const float * const tns_tmp2_map[4] = {
yading@10:     tns_tmp2_map_0_3,
yading@10:     tns_tmp2_map_0_4,
yading@10:     tns_tmp2_map_1_3,
yading@10:     tns_tmp2_map_1_4
yading@10: };
yading@10: // @}
yading@10: 
yading@10: static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 0, 0, 0, 0, 0 };
yading@10: 
yading@10: static const uint8_t aac_channel_layout_map[7][5][3] = {
yading@10:     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, },
yading@10:     { { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
yading@10:     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
yading@10:     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, },
yading@10:     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, },
yading@10:     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
yading@10:     { { 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  }, },
yading@10: };
yading@10: 
yading@10: static const uint64_t aac_channel_layout[8] = {
yading@10:     AV_CH_LAYOUT_MONO,
yading@10:     AV_CH_LAYOUT_STEREO,
yading@10:     AV_CH_LAYOUT_SURROUND,
yading@10:     AV_CH_LAYOUT_4POINT0,
yading@10:     AV_CH_LAYOUT_5POINT0_BACK,
yading@10:     AV_CH_LAYOUT_5POINT1_BACK,
yading@10:     AV_CH_LAYOUT_7POINT1_WIDE_BACK,
yading@10:     0,
yading@10: };
yading@10: 
yading@10: #endif /* AVCODEC_AACDECTAB_H */