blob: f529fc80774fdfa307d4c50c5de63b9effd857f6
| 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 "libavutil/internal.h" |
| 28 | #include "ac3.h" |
| 29 | |
| 30 | extern const uint16_t ff_ac3_frame_size_tab[38][3]; |
| 31 | extern const uint8_t ff_ac3_channels_tab[8]; |
| 32 | extern av_export const uint16_t avpriv_ac3_channel_layout_tab[8]; |
| 33 | extern const uint8_t ff_ac3_enc_channel_map[8][2][6]; |
| 34 | extern const uint8_t ff_ac3_dec_channel_map[8][2][6]; |
| 35 | extern const uint16_t ff_ac3_sample_rate_tab[3]; |
| 36 | extern const uint16_t ff_ac3_bitrate_tab[19]; |
| 37 | extern const uint8_t ff_ac3_rematrix_band_tab[5]; |
| 38 | extern const uint8_t ff_eac3_default_cpl_band_struct[18]; |
| 39 | extern const int16_t ff_ac3_window[AC3_WINDOW_SIZE/2]; |
| 40 | extern const uint8_t ff_ac3_log_add_tab[260]; |
| 41 | extern const uint16_t ff_ac3_hearing_threshold_tab[AC3_CRITICAL_BANDS][3]; |
| 42 | extern const uint8_t ff_ac3_bap_tab[64]; |
| 43 | extern const uint8_t ff_ac3_slow_decay_tab[4]; |
| 44 | extern const uint8_t ff_ac3_fast_decay_tab[4]; |
| 45 | extern const uint16_t ff_ac3_slow_gain_tab[4]; |
| 46 | extern const uint16_t ff_ac3_db_per_bit_tab[4]; |
| 47 | extern const int16_t ff_ac3_floor_tab[8]; |
| 48 | extern const uint16_t ff_ac3_fast_gain_tab[8]; |
| 49 | extern const uint16_t ff_eac3_default_chmap[8]; |
| 50 | extern const uint8_t ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1]; |
| 51 | extern const uint8_t ff_ac3_bin_to_band_tab[253]; |
| 52 | |
| 53 | /** Custom channel map locations bitmask |
| 54 | * Other channels described in documentation: |
| 55 | * Lc/Rc pair, Lrs/Rrs pair, Ts, Lsd/Rsd pair, |
| 56 | * Lw/Rw pair, Lvh/Rvh pair, Cvh, Reserved, LFE2 |
| 57 | */ |
| 58 | enum CustomChannelMapLocation{ |
| 59 | AC3_CHMAP_L= 1<<(15-0), |
| 60 | AC3_CHMAP_C= 1<<(15-1), |
| 61 | AC3_CHMAP_R= 1<<(15-2), |
| 62 | AC3_CHMAP_L_SUR= 1<<(15-3), |
| 63 | AC3_CHMAP_R_SUR = 1<<(15-4), |
| 64 | AC3_CHMAP_C_SUR= 1<<(15-7), |
| 65 | AC3_CHMAP_LFE = 1<<(15-15) |
| 66 | }; |
| 67 | |
| 68 | #endif /* AVCODEC_AC3TAB_H */ |
| 69 |