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libavcodec/ac3tab.h

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00001 /*
00002  * AC-3 tables
00003  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00022 #ifndef AVCODEC_AC3TAB_H
00023 #define AVCODEC_AC3TAB_H
00024 
00025 #include "libavutil/common.h"
00026 
00027 extern const uint16_t ff_ac3_frame_size_tab[38][3];
00028 extern const uint8_t  ff_ac3_channels_tab[8];
00029 extern const uint16_t ff_ac3_channel_layout_tab[8];
00030 extern const uint8_t  ff_ac3_enc_channel_map[8][2][6];
00031 extern const uint8_t  ff_ac3_dec_channel_map[8][2][6];
00032 extern const uint16_t ff_ac3_sample_rate_tab[3];
00033 extern const uint16_t ff_ac3_bitrate_tab[19];
00034 extern const int16_t  ff_ac3_window[256];
00035 extern const uint8_t  ff_ac3_log_add_tab[260];
00036 extern const uint16_t ff_ac3_hearing_threshold_tab[50][3];
00037 extern const uint8_t  ff_ac3_bap_tab[64];
00038 extern const uint8_t  ff_ac3_slow_decay_tab[4];
00039 extern const uint8_t  ff_ac3_fast_decay_tab[4];
00040 extern const uint16_t ff_ac3_slow_gain_tab[4];
00041 extern const uint16_t ff_ac3_db_per_bit_tab[4];
00042 extern const int16_t  ff_ac3_floor_tab[8];
00043 extern const uint16_t ff_ac3_fast_gain_tab[8];
00044 extern const uint8_t  ff_ac3_critical_band_size_tab[50];
00045 extern const uint16_t ff_eac3_default_chmap[8];
00046 
00052 enum CustomChannelMapLocation{
00053     AC3_CHMAP_L=        1<<(15-0),
00054     AC3_CHMAP_C=        1<<(15-1),
00055     AC3_CHMAP_R=        1<<(15-2),
00056     AC3_CHMAP_L_SUR=    1<<(15-3),
00057     AC3_CHMAP_R_SUR =   1<<(15-4),
00058     AC3_CHMAP_C_SUR=    1<<(15-7),
00059     AC3_CHMAP_LFE =     1<<(15-15)
00060 };
00061 
00062 #endif /* AVCODEC_AC3TAB_H */

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