eac3_data.h
Go to the documentation of this file.
1 /*
2  * E-AC-3 tables
3  * Copyright (c) 2007 Bartlomiej Wolowiec <bartek.wolowiec@gmail.com>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVCODEC_EAC3_DATA_H
23 #define AVCODEC_EAC3_DATA_H
24 
25 #include <stdint.h>
26 
27 extern const uint8_t ff_eac3_bits_vs_hebap[20];
28 extern const int16_t ff_eac3_gaq_remap_1[12];
29 extern const int16_t ff_eac3_gaq_remap_2_4_a[9][2];
30 extern const int16_t ff_eac3_gaq_remap_2_4_b[9][2];
31 
32 extern const int16_t (* const ff_eac3_mantissa_vq[8])[6];
33 extern const uint8_t ff_eac3_frm_expstr[32][6];
34 extern const float ff_eac3_spx_atten_tab[32][3];
35 
36 #endif /* AVCODEC_EAC3_DATA_H */
ff_eac3_spx_atten_tab
const float ff_eac3_spx_atten_tab[32][3]
Table E.25: Spectral Extension Attenuation Table ff_eac3_spx_atten_tab[code][bin]=pow(2.0,(bin+1)*(code+1)/-15.0);.
Definition: eac3_data.c:1101
ff_eac3_gaq_remap_2_4_a
const int16_t ff_eac3_gaq_remap_2_4_a[9][2]
Table E3.6, Gk=2 & Gk=4, A Large mantissa inverse quantization, remapping scale factors ff_eac3_gaq_r...
Definition: eac3_data.c:49
uint8_t
uint8_t
Definition: audio_convert.c:194
ff_eac3_frm_expstr
const uint8_t ff_eac3_frm_expstr[32][6]
Table E2.14 Frame Exponent Strategy Combinations.
Definition: eac3_data.c:1062
ff_eac3_gaq_remap_2_4_b
const int16_t ff_eac3_gaq_remap_2_4_b[9][2]
Table E3.6, Gk=2 & Gk=4, B Large mantissa inverse quantization, negative mantissa remapping offsets f...
Definition: eac3_data.c:66
ff_eac3_gaq_remap_1
const int16_t ff_eac3_gaq_remap_1[12]
Table E3.6, Gk=1 No gain (Gk=1) inverse quantization, remapping scale factors ff_eac3_gaq_remap[hebap...
Definition: eac3_data.c:40
ff_eac3_mantissa_vq
const int16_t(*const [8] ff_eac3_mantissa_vq)[6]
Definition: eac3_data.c:1048
ff_eac3_bits_vs_hebap
const uint8_t ff_eac3_bits_vs_hebap[20]
Definition: eac3_data.c:30
Generated on Fri Dec 20 2024 06:55:59 for FFmpeg by   doxygen 1.8.11