/* * AC-3 tables * Copyright (c) 2000, 2001, 2002 Fabrice Bellard * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVCODEC_AC3TAB_H#define AVCODEC_AC3TAB_H #include <stdint.h> #include "libavutil/internal.h"#include "ac3.h" extern const uint16_t ff_ac3_frame_size_tab[38][3];extern const uint8_t  ff_ac3_channels_tab[8];extern av_export const uint16_t avpriv_ac3_channel_layout_tab[8];extern const uint8_t  ff_ac3_enc_channel_map[8][2][6];extern const uint8_t  ff_ac3_dec_channel_map[8][2][6];extern const uint16_t ff_ac3_sample_rate_tab[3];extern const uint16_t ff_ac3_bitrate_tab[19];extern const uint8_t  ff_ac3_rematrix_band_tab[5];extern const uint8_t  ff_eac3_default_cpl_band_struct[18];extern const int16_t  ff_ac3_window[AC3_WINDOW_SIZE/2];extern const uint8_t  ff_ac3_log_add_tab[260];extern const uint16_t ff_ac3_hearing_threshold_tab[AC3_CRITICAL_BANDS][3];extern const uint8_t  ff_ac3_bap_tab[64];extern const uint8_t  ff_ac3_slow_decay_tab[4];extern const uint8_t  ff_ac3_fast_decay_tab[4];extern const uint16_t ff_ac3_slow_gain_tab[4];extern const uint16_t ff_ac3_db_per_bit_tab[4];extern const int16_t  ff_ac3_floor_tab[8];extern const uint16_t ff_ac3_fast_gain_tab[8];extern const uint16_t ff_eac3_default_chmap[8];extern const uint8_t  ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1];extern const uint8_t  ff_ac3_bin_to_band_tab[253]; /** Custom channel map locations bitmask *  Other channels described in documentation: *      Lc/Rc pair, Lrs/Rrs pair, Ts, Lsd/Rsd pair, *      Lw/Rw pair, Lvh/Rvh pair, Cvh, Reserved, LFE2 */enum CustomChannelMapLocation{    AC3_CHMAP_L=        1<<(15-0),    AC3_CHMAP_C=        1<<(15-1),    AC3_CHMAP_R=        1<<(15-2),    AC3_CHMAP_L_SUR=    1<<(15-3),    AC3_CHMAP_R_SUR =   1<<(15-4),    AC3_CHMAP_C_SUR=    1<<(15-7),    AC3_CHMAP_LFE =     1<<(15-15)}; #endif /* AVCODEC_AC3TAB_H */