mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
133 lines
4.6 KiB
133 lines
4.6 KiB
/* |
|
* AAC data declarations |
|
* 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 data declarations |
|
* @author Oded Shimon ( ods15 ods15 dyndns org ) |
|
* @author Maxim Gavrilov ( maxim.gavrilov gmail com ) |
|
*/ |
|
|
|
#ifndef AVCODEC_AACTAB_H |
|
#define AVCODEC_AACTAB_H |
|
|
|
#include "libavutil/mem.h" |
|
#include "aac.h" |
|
#include "aac_tablegen_decl.h" |
|
|
|
#include <stdint.h> |
|
|
|
/* NOTE: |
|
* Tables in this file are used by the AAC decoder and will be used by the AAC |
|
* encoder. |
|
*/ |
|
|
|
/* @name ltp_coef |
|
* Table of the LTP coefficients |
|
*/ |
|
static const INTFLOAT ltp_coef[8] = { |
|
Q30(0.570829f), Q30(0.696616f), Q30(0.813004f), Q30(0.911304f), |
|
Q30(0.984900f), Q30(1.067894f), Q30(1.194601f), Q30(1.369533f), |
|
}; |
|
|
|
/* @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 INTFLOAT tns_tmp2_map_1_3[4] = { |
|
Q31(0.00000000f), Q31(-0.43388373f), Q31(0.64278758f), Q31(0.34202015f), |
|
}; |
|
|
|
static const INTFLOAT tns_tmp2_map_0_3[8] = { |
|
Q31(0.00000000f), Q31(-0.43388373f), Q31(-0.78183150f), Q31(-0.97492790f), |
|
Q31(0.98480773f), Q31( 0.86602539f), Q31( 0.64278758f), Q31( 0.34202015f), |
|
}; |
|
|
|
static const INTFLOAT tns_tmp2_map_1_4[8] = { |
|
Q31(0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f), |
|
Q31(0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f), |
|
}; |
|
|
|
static const INTFLOAT tns_tmp2_map_0_4[16] = { |
|
Q31( 0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f), |
|
Q31(-0.74314481f), Q31(-0.86602539f), Q31(-0.95105654f), Q31(-0.99452192f), |
|
Q31( 0.99573416f), Q31( 0.96182561f), Q31( 0.89516330f), Q31( 0.79801720f), |
|
Q31( 0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f), |
|
}; |
|
|
|
static const INTFLOAT * 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 |
|
}; |
|
// @} |
|
|
|
/* @name window coefficients |
|
* @{ |
|
*/ |
|
DECLARE_ALIGNED(32, extern float, ff_aac_kbd_long_1024)[1024]; |
|
DECLARE_ALIGNED(32, extern float, ff_aac_kbd_short_128)[128]; |
|
DECLARE_ALIGNED(32, extern int, ff_aac_kbd_long_1024_fixed)[1024]; |
|
DECLARE_ALIGNED(32, extern int, ff_aac_kbd_long_512_fixed)[512]; |
|
DECLARE_ALIGNED(32, extern int, ff_aac_kbd_short_128_fixed)[128]; |
|
const DECLARE_ALIGNED(32, extern float, ff_aac_eld_window_512)[1920]; |
|
const DECLARE_ALIGNED(32, extern int, ff_aac_eld_window_512_fixed)[1920]; |
|
const DECLARE_ALIGNED(32, extern float, ff_aac_eld_window_480)[1800]; |
|
const DECLARE_ALIGNED(32, extern int, ff_aac_eld_window_480_fixed)[1800]; |
|
// @} |
|
|
|
/* @name number of scalefactor window bands for long and short transform windows respectively |
|
* @{ |
|
*/ |
|
extern const uint8_t ff_aac_num_swb_1024[]; |
|
extern const uint8_t ff_aac_num_swb_512 []; |
|
extern const uint8_t ff_aac_num_swb_480 []; |
|
extern const uint8_t ff_aac_num_swb_128 []; |
|
// @} |
|
|
|
extern const uint8_t ff_aac_pred_sfb_max []; |
|
|
|
extern const uint32_t ff_aac_scalefactor_code[121]; |
|
extern const uint8_t ff_aac_scalefactor_bits[121]; |
|
|
|
extern const uint16_t * const ff_aac_spectral_codes[11]; |
|
extern const uint8_t * const ff_aac_spectral_bits [11]; |
|
extern const uint16_t ff_aac_spectral_sizes[11]; |
|
|
|
extern const float *ff_aac_codebook_vectors[]; |
|
extern const float *ff_aac_codebook_vector_vals[]; |
|
extern const uint16_t *ff_aac_codebook_vector_idx[]; |
|
|
|
extern const uint16_t * const ff_swb_offset_1024[13]; |
|
extern const uint16_t * const ff_swb_offset_512 [13]; |
|
extern const uint16_t * const ff_swb_offset_480 [13]; |
|
extern const uint16_t * const ff_swb_offset_128 [13]; |
|
|
|
extern const uint8_t ff_tns_max_bands_1024[13]; |
|
extern const uint8_t ff_tns_max_bands_512 [13]; |
|
extern const uint8_t ff_tns_max_bands_480 [13]; |
|
extern const uint8_t ff_tns_max_bands_128 [13]; |
|
|
|
#endif /* AVCODEC_AACTAB_H */
|
|
|