/*

  * 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 "libavutil/common.h"

 #include "ac3.h"

 #if CONFIG_HARDCODED_TABLES
 #   define HCONST const
 #else
 #   define HCONST
 #endif
 

 extern const uint16_t ff_ac3_frame_size_tab[38][3];
 extern const uint8_t  ff_ac3_channels_tab[8];

 extern const uint16_t ff_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 HCONST 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 */