mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-11 01:25:25 +00:00
ba87f0801d
Passing an explicit filename to this command is only necessary if the documentation in the @file block refers to a file different from the one the block resides in. Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/*
|
|
* 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 */
|