Statistics
| Branch: | Revision:

ffmpeg / libavcodec / ac3tab.h @ 2912e87a

History | View | Annotate | Download (2.33 KB)

1
/*
2
 * AC-3 tables
3
 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4
 *
5
 * This file is part of Libav.
6
 *
7
 * Libav 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
 * Libav 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 Libav; 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
#include "ac3.h"
27

    
28
extern const uint16_t ff_ac3_frame_size_tab[38][3];
29
extern const uint8_t  ff_ac3_channels_tab[8];
30
extern const uint16_t ff_ac3_channel_layout_tab[8];
31
extern const uint8_t  ff_ac3_enc_channel_map[8][2][6];
32
extern const uint8_t  ff_ac3_dec_channel_map[8][2][6];
33
extern const uint16_t ff_ac3_sample_rate_tab[3];
34
extern const uint16_t ff_ac3_bitrate_tab[19];
35
extern const uint8_t  ff_ac3_rematrix_band_tab[5];
36
extern const int16_t  ff_ac3_window[AC3_WINDOW_SIZE/2];
37
extern const uint8_t  ff_ac3_log_add_tab[260];
38
extern const uint16_t ff_ac3_hearing_threshold_tab[AC3_CRITICAL_BANDS][3];
39
extern const uint8_t  ff_ac3_bap_tab[64];
40
extern const uint8_t  ff_ac3_slow_decay_tab[4];
41
extern const uint8_t  ff_ac3_fast_decay_tab[4];
42
extern const uint16_t ff_ac3_slow_gain_tab[4];
43
extern const uint16_t ff_ac3_db_per_bit_tab[4];
44
extern const int16_t  ff_ac3_floor_tab[8];
45
extern const uint16_t ff_ac3_fast_gain_tab[8];
46
extern const uint16_t ff_eac3_default_chmap[8];
47

    
48
/** Custom channel map locations bitmask
49
 *  Other channels described in documentation:
50
 *      Lc/Rc pair, Lrs/Rrs pair, Ts, Lsd/Rsd pair,
51
 *      Lw/Rw pair, Lvh/Rvh pair, Cvh, Reserved, LFE2
52
 */
53
enum CustomChannelMapLocation{
54
    AC3_CHMAP_L=        1<<(15-0),
55
    AC3_CHMAP_C=        1<<(15-1),
56
    AC3_CHMAP_R=        1<<(15-2),
57
    AC3_CHMAP_L_SUR=    1<<(15-3),
58
    AC3_CHMAP_R_SUR =   1<<(15-4),
59
    AC3_CHMAP_C_SUR=    1<<(15-7),
60
    AC3_CHMAP_LFE =     1<<(15-15)
61
};
62

    
63
#endif /* AVCODEC_AC3TAB_H */