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Member "ffmpeg-4.0.1/libavcodec/aacdectab.h" (27 Feb 2018, 2979 Bytes) of package /linux/misc/ffmpeg-4.0.1.tar.xz:


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    1 /*
    2  * AAC decoder data
    3  * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
    4  * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
    5  *
    6  * This file is part of FFmpeg.
    7  *
    8  * FFmpeg is free software; you can redistribute it and/or
    9  * modify it under the terms of the GNU Lesser General Public
   10  * License as published by the Free Software Foundation; either
   11  * version 2.1 of the License, or (at your option) any later version.
   12  *
   13  * FFmpeg is distributed in the hope that it will be useful,
   14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   16  * Lesser General Public License for more details.
   17  *
   18  * You should have received a copy of the GNU Lesser General Public
   19  * License along with FFmpeg; if not, write to the Free Software
   20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   21  */
   22 
   23 /**
   24  * @file
   25  * AAC decoder data
   26  * @author Oded Shimon  ( ods15 ods15 dyndns org )
   27  * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
   28  */
   29 
   30 #ifndef AVCODEC_AACDECTAB_H
   31 #define AVCODEC_AACDECTAB_H
   32 
   33 #include "libavutil/channel_layout.h"
   34 #include "aac.h"
   35 
   36 #include <stdint.h>
   37 
   38 static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 4, 5, 0, 5, 0 };
   39 
   40 static const uint8_t aac_channel_layout_map[16][5][3] = {
   41     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, },
   42     { { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
   43     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
   44     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, },
   45     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, },
   46     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
   47     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_FRONT }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
   48     { { 0, } },
   49     { { 0, } },
   50     { { 0, } },
   51     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
   52     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_SIDE }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
   53     { { 0, } },
   54     /* TODO: Add 7+1 TOP configuration */
   55 };
   56 
   57 static const uint64_t aac_channel_layout[16] = {
   58     AV_CH_LAYOUT_MONO,
   59     AV_CH_LAYOUT_STEREO,
   60     AV_CH_LAYOUT_SURROUND,
   61     AV_CH_LAYOUT_4POINT0,
   62     AV_CH_LAYOUT_5POINT0_BACK,
   63     AV_CH_LAYOUT_5POINT1_BACK,
   64     AV_CH_LAYOUT_7POINT1_WIDE_BACK,
   65     0,
   66     0,
   67     0,
   68     AV_CH_LAYOUT_6POINT1,
   69     AV_CH_LAYOUT_7POINT1,
   70     0,
   71     /* AV_CH_LAYOUT_7POINT1_TOP, */
   72 };
   73 
   74 #endif /* AVCODEC_AACDECTAB_H */