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ac3tab.h
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1/*
2 * AC-3 tables
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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_AC3TAB_H
23#define AVCODEC_AC3TAB_H
24
25#include <stdint.h>
26
27#include "ac3defs.h"
28
30
32extern const uint16_t ff_ac3_frame_size_tab[38][3];
33extern const uint8_t ff_ac3_channels_tab[8];
34extern const uint16_t ff_ac3_channel_layout_tab[8];
35extern const uint8_t ff_ac3_dec_channel_map[8][2][6];
36extern const int ff_ac3_sample_rate_tab[];
37extern const uint16_t ff_ac3_bitrate_tab[19];
38extern const uint8_t ff_ac3_rematrix_band_tab[5];
39extern const uint8_t ff_eac3_default_cpl_band_struct[18];
40extern const uint8_t ff_ac3_bap_tab[64];
41extern const uint8_t ff_ac3_slow_decay_tab[4];
42extern const uint8_t ff_ac3_fast_decay_tab[4];
43extern const uint16_t ff_ac3_slow_gain_tab[4];
44extern const uint16_t ff_ac3_db_per_bit_tab[4];
45extern const int16_t ff_ac3_floor_tab[8];
46extern const uint16_t ff_ac3_fast_gain_tab[8];
47extern const uint8_t ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1];
48extern const uint8_t ff_ac3_bin_to_band_tab[253];
49extern const float ff_ac3_gain_levels[9];
50extern const uint64_t ff_eac3_custom_channel_map_locations[16][2];
52
53#define COMMON_CHANNEL_MAP \
54 { { 0, 1, }, { 0, 1, 2, } },\
55 { { 0, }, { 0, 1, } },\
56 { { 0, 1, }, { 0, 1, 2, } },\
57 { { 0, 2, 1, }, { 0, 2, 1, 3, } },\
58 { { 0, 1, 2, }, { 0, 1, 3, 2, } },\
59 { { 0, 2, 1, 3, }, { 0, 2, 1, 4, 3, } },
60
61#endif /* AVCODEC_AC3TAB_H */
const uint8_t ff_ac3_bin_to_band_tab[253]
Map each frequency coefficient bin to the critical band that contains it.
Definition ac3.c:47
const uint8_t ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1]
Starting frequency coefficient bin for each critical band.
Definition ac3.c:36
const uint16_t ff_ac3_channel_layout_tab[8]
Map audio coding mode (acmod) to channel layout mask.
#define AC3_CRITICAL_BANDS
Definition ac3defs.h:34
const uint8_t ff_ac3_rematrix_band_tab[5]
Table of bin locations for rematrixing bands reference: Section 7.5.2 Rematrixing : Frequency Band De...
Definition ac3tab.c:108
const uint8_t ff_ac3_channels_tab[8]
Map audio coding mode (acmod) to number of full-bandwidth channels.
Definition ac3tab.c:81
const uint8_t ff_ac3_dec_channel_map[8][2][6]
Table to remap channels from AC-3 order to SMPTE order.
Definition ac3tab.c:89
const uint16_t ff_ac3_bitrate_tab[19]
Definition ac3tab.c:99
const uint8_t ff_ac3_fast_decay_tab[4]
Definition ac3tab.c:131
const int ff_ac3_sample_rate_tab[]
Definition ac3tab.c:96
const uint16_t ff_ac3_fast_gain_tab[8]
Definition ac3tab.c:147
const uint16_t ff_ac3_slow_gain_tab[4]
Definition ac3tab.c:135
const uint8_t ff_eac3_default_cpl_band_struct[18]
Table E2.16 Default Coupling Banding Structure.
Definition ac3tab.c:113
const uint16_t ff_ac3_frame_size_tab[38][3]
Possible frame sizes.
Definition ac3tab.c:36
const uint8_t ff_ac3_slow_decay_tab[4]
Definition ac3tab.c:127
const float ff_ac3_gain_levels[9]
Adjustments in dB gain.
Definition ac3tab.c:152
const uint64_t ff_eac3_custom_channel_map_locations[16][2]
Definition ac3tab.c:164
const int16_t ff_ac3_floor_tab[8]
Definition ac3tab.c:143
const uint16_t ff_ac3_db_per_bit_tab[4]
Definition ac3tab.c:139
const uint8_t ff_ac3_bap_tab[64]
Definition ac3tab.c:117
#define FF_VISIBILITY_PUSH_HIDDEN
#define FF_VISIBILITY_POP_HIDDEN