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 "libavutil/common.h"
26
27extern const uint16_t ff_ac3_frame_size_tab[38][3];
28extern const uint8_t  ff_ac3_channels_tab[8];
29extern const uint16_t ff_ac3_channel_layout_tab[8];
30extern const uint8_t  ff_ac3_enc_channel_map[8][2][6];
31extern const uint8_t  ff_ac3_dec_channel_map[8][2][6];
32extern const uint16_t ff_ac3_sample_rate_tab[3];
33extern const uint16_t ff_ac3_bitrate_tab[19];
34extern const int16_t  ff_ac3_window[256];
35extern const uint8_t  ff_ac3_log_add_tab[260];
36extern const uint16_t ff_ac3_hearing_threshold_tab[50][3];
37extern const uint8_t  ff_ac3_bap_tab[64];
38extern const uint8_t  ff_ac3_slow_decay_tab[4];
39extern const uint8_t  ff_ac3_fast_decay_tab[4];
40extern const uint16_t ff_ac3_slow_gain_tab[4];
41extern const uint16_t ff_ac3_db_per_bit_tab[4];
42extern const int16_t  ff_ac3_floor_tab[8];
43extern const uint16_t ff_ac3_fast_gain_tab[8];
44extern const uint8_t  ff_ac3_critical_band_size_tab[50];
45extern const uint16_t ff_eac3_default_chmap[8];
46
47/** Custom channel map locations bitmask
48 *  Other channels described in documentation:
49 *      Lc/Rc pair, Lrs/Rrs pair, Ts, Lsd/Rsd pair,
50 *      Lw/Rw pair, Lvh/Rvh pair, Cvh, Reserved, LFE2
51 */
52enum CustomChannelMapLocation{
53    AC3_CHMAP_L=        1<<(15-0),
54    AC3_CHMAP_C=        1<<(15-1),
55    AC3_CHMAP_R=        1<<(15-2),
56    AC3_CHMAP_L_SUR=    1<<(15-3),
57    AC3_CHMAP_R_SUR =   1<<(15-4),
58    AC3_CHMAP_C_SUR=    1<<(15-7),
59    AC3_CHMAP_LFE =     1<<(15-15)
60};
61
62#endif /* AVCODEC_AC3TAB_H */
63