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117 lines
4.4 KiB
117 lines
4.4 KiB
/* |
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* AAC decoder data |
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* Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org ) |
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* Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com ) |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file |
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* AAC decoder data |
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* @author Oded Shimon ( ods15 ods15 dyndns org ) |
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* @author Maxim Gavrilov ( maxim.gavrilov gmail com ) |
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*/ |
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#ifndef AVCODEC_AACDECTAB_H |
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#define AVCODEC_AACDECTAB_H |
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#include "libavutil/channel_layout.h" |
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#include "aac.h" |
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#include <stdint.h> |
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/* @name ltp_coef |
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* Table of the LTP coefficients |
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*/ |
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static const INTFLOAT ltp_coef[8] = { |
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Q30(0.570829f), Q30(0.696616f), Q30(0.813004f), Q30(0.911304f), |
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Q30(0.984900f), Q30(1.067894f), Q30(1.194601f), Q30(1.369533f), |
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}; |
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/* @name tns_tmp2_map |
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* Tables of the tmp2[] arrays of LPC coefficients used for TNS. |
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* The suffix _M_N[] indicate the values of coef_compress and coef_res |
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* respectively. |
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* @{ |
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*/ |
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static const INTFLOAT tns_tmp2_map_1_3[4] = { |
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Q31(0.00000000f), Q31(-0.43388373f), Q31(0.64278758f), Q31(0.34202015f), |
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}; |
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static const INTFLOAT tns_tmp2_map_0_3[8] = { |
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Q31(0.00000000f), Q31(-0.43388373f), Q31(-0.78183150f), Q31(-0.97492790f), |
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Q31(0.98480773f), Q31( 0.86602539f), Q31( 0.64278758f), Q31( 0.34202015f), |
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}; |
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static const INTFLOAT tns_tmp2_map_1_4[8] = { |
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Q31(0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f), |
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Q31(0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f), |
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}; |
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static const INTFLOAT tns_tmp2_map_0_4[16] = { |
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Q31( 0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f), |
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Q31(-0.74314481f), Q31(-0.86602539f), Q31(-0.95105654f), Q31(-0.99452192f), |
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Q31( 0.99573416f), Q31( 0.96182561f), Q31( 0.89516330f), Q31( 0.79801720f), |
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Q31( 0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f), |
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}; |
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static const INTFLOAT * const tns_tmp2_map[4] = { |
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tns_tmp2_map_0_3, |
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tns_tmp2_map_0_4, |
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tns_tmp2_map_1_3, |
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tns_tmp2_map_1_4 |
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}; |
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// @} |
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static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 4, 5, 0, 5, 0 }; |
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static const uint8_t aac_channel_layout_map[16][5][3] = { |
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, }, |
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{ { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, }, |
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, }, |
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, }, |
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, }, |
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, }, |
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{ { 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 }, }, |
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{ { 0, } }, |
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{ { 0, } }, |
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{ { 0, } }, |
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, }, |
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_SIDE }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, }, |
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{ { 0, } }, |
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/* TODO: Add 7+1 TOP configuration */ |
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}; |
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static const uint64_t aac_channel_layout[16] = { |
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AV_CH_LAYOUT_MONO, |
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AV_CH_LAYOUT_STEREO, |
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AV_CH_LAYOUT_SURROUND, |
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AV_CH_LAYOUT_4POINT0, |
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AV_CH_LAYOUT_5POINT0_BACK, |
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AV_CH_LAYOUT_5POINT1_BACK, |
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AV_CH_LAYOUT_7POINT1_WIDE_BACK, |
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0, |
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0, |
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0, |
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AV_CH_LAYOUT_6POINT1, |
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AV_CH_LAYOUT_7POINT1, |
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0, |
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/* AV_CH_LAYOUT_7POINT1_TOP, */ |
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}; |
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#endif /* AVCODEC_AACDECTAB_H */
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