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 29extern const uint16_t ff_ac3_frame_size_tab[38][3]; 30extern const uint8_t ff_ac3_channels_tab[8]; 31extern const uint16_t ff_ac3_channel_layout_tab[8]; 32extern const uint8_t ff_ac3_dec_channel_map[8][2][6]; 33extern const int ff_ac3_sample_rate_tab[]; 34extern const uint16_t ff_ac3_bitrate_tab[19]; 35extern const uint8_t ff_ac3_rematrix_band_tab[5]; 36extern const uint8_t ff_eac3_default_cpl_band_struct[18]; 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_band_start_tab[AC3_CRITICAL_BANDS+1]; 45extern const uint8_t ff_ac3_bin_to_band_tab[253]; 46extern const uint64_t ff_eac3_custom_channel_map_locations[16][2]; 47 48 49/** Custom channel map locations bitmask 50 * Other channels described in documentation: 51 * Lc/Rc pair, Lrs/Rrs pair, Ts, Lsd/Rsd pair, 52 * Lw/Rw pair, Lvh/Rvh pair, Cvh, Reserved, LFE2 53 */ 54enum CustomChannelMapLocation{ 55 AC3_CHMAP_L= 1<<(15-0), 56 AC3_CHMAP_C= 1<<(15-1), 57 AC3_CHMAP_R= 1<<(15-2), 58 AC3_CHMAP_L_SUR= 1<<(15-3), 59 AC3_CHMAP_R_SUR = 1<<(15-4), 60 AC3_CHMAP_C_SUR= 1<<(15-7), 61 AC3_CHMAP_LFE = 1<<(15-15) 62}; 63 64#define COMMON_CHANNEL_MAP \ 65 { { 0, 1, }, { 0, 1, 2, } },\ 66 { { 0, }, { 0, 1, } },\ 67 { { 0, 1, }, { 0, 1, 2, } },\ 68 { { 0, 2, 1, }, { 0, 2, 1, 3, } },\ 69 { { 0, 1, 2, }, { 0, 1, 3, 2, } },\ 70 { { 0, 2, 1, 3, }, { 0, 2, 1, 4, 3, } }, 71 72#endif /* AVCODEC_AC3TAB_H */ 73