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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 
29 #include "libavutil/attributes_internal.h"
30 
31 FF_VISIBILITY_PUSH_HIDDEN
32 extern const uint16_t ff_ac3_frame_size_tab[38][3];
33 extern const uint8_t ff_ac3_channels_tab[8];
34 extern const uint16_t ff_ac3_channel_layout_tab[8];
35 extern const uint8_t ff_ac3_dec_channel_map[8][2][6];
36 extern const int ff_ac3_sample_rate_tab[];
37 extern const uint16_t ff_ac3_bitrate_tab[19];
38 extern const uint8_t ff_ac3_rematrix_band_tab[5];
39 extern const uint8_t ff_eac3_default_cpl_band_struct[18];
40 extern const uint8_t ff_ac3_bap_tab[64];
41 extern const uint8_t ff_ac3_slow_decay_tab[4];
42 extern const uint8_t ff_ac3_fast_decay_tab[4];
43 extern const uint16_t ff_ac3_slow_gain_tab[4];
44 extern const uint16_t ff_ac3_db_per_bit_tab[4];
45 extern const int16_t ff_ac3_floor_tab[8];
46 extern const uint16_t ff_ac3_fast_gain_tab[8];
47 extern const uint8_t ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1];
48 extern const uint8_t ff_ac3_bin_to_band_tab[253];
49 extern const float ff_ac3_gain_levels[9];
50 extern const uint64_t ff_eac3_custom_channel_map_locations[16][2];
51 FF_VISIBILITY_POP_HIDDEN
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 */
ff_ac3_bin_to_band_tab
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
ff_ac3_channels_tab
const uint8_t ff_ac3_channels_tab[8]
Map audio coding mode (acmod) to number of full-bandwidth channels.
Definition: ac3tab.c:81
FF_VISIBILITY_PUSH_HIDDEN
#define FF_VISIBILITY_PUSH_HIDDEN
Definition: attributes_internal.h:30
ff_ac3_band_start_tab
const uint8_t ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1]
Starting frequency coefficient bin for each critical band.
Definition: ac3.c:36
AC3_CRITICAL_BANDS
#define AC3_CRITICAL_BANDS
Definition: ac3defs.h:34
ff_ac3_floor_tab
const int16_t ff_ac3_floor_tab[8]
Definition: ac3tab.c:143
attributes_internal.h
ff_ac3_gain_levels
const float ff_ac3_gain_levels[9]
Adjustments in dB gain.
Definition: ac3tab.c:152
ff_eac3_custom_channel_map_locations
const uint64_t ff_eac3_custom_channel_map_locations[16][2]
Definition: ac3tab.c:164
ff_ac3_fast_gain_tab
const uint16_t ff_ac3_fast_gain_tab[8]
Definition: ac3tab.c:147
ac3defs.h
ff_ac3_db_per_bit_tab
const uint16_t ff_ac3_db_per_bit_tab[4]
Definition: ac3tab.c:139
ff_eac3_default_cpl_band_struct
const uint8_t ff_eac3_default_cpl_band_struct[18]
Table E2.16 Default Coupling Banding Structure.
Definition: ac3tab.c:113
ff_ac3_fast_decay_tab
const uint8_t ff_ac3_fast_decay_tab[4]
Definition: ac3tab.c:131
ff_ac3_sample_rate_tab
const int ff_ac3_sample_rate_tab[]
Definition: ac3tab.c:96
ff_ac3_slow_decay_tab
const uint8_t ff_ac3_slow_decay_tab[4]
Definition: ac3tab.c:127
FF_VISIBILITY_POP_HIDDEN
#define FF_VISIBILITY_POP_HIDDEN
Definition: attributes_internal.h:31
ff_ac3_bitrate_tab
const uint16_t ff_ac3_bitrate_tab[19]
Definition: ac3tab.c:99
ff_ac3_frame_size_tab
const FF_VISIBILITY_PUSH_HIDDEN uint16_t ff_ac3_frame_size_tab[38][3]
Possible frame sizes.
Definition: ac3tab.c:36
ff_ac3_slow_gain_tab
const uint16_t ff_ac3_slow_gain_tab[4]
Definition: ac3tab.c:135
ff_ac3_dec_channel_map
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
ff_ac3_bap_tab
const uint8_t ff_ac3_bap_tab[64]
Definition: ac3tab.c:117
ff_ac3_rematrix_band_tab
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
ff_ac3_channel_layout_tab
const uint16_t ff_ac3_channel_layout_tab[8]
Map audio coding mode (acmod) to channel layout mask.
Definition: ac3_channel_layout_tab.h:31
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