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https://github.com/FFmpeg/FFmpeg.git
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828b0da7b7
Generalize the checks for channels in all positions, and properly support the three height groups (normal, top, bottom) instead of manually setting the relevant channels for the latter two after the normal height tags were parsed. Signed-off-by: James Almer <jamrial@gmail.com>
129 lines
6.6 KiB
C
129 lines
6.6 KiB
C
/*
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* AAC decoder data
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* Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
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* Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* AAC decoder data
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* @author Oded Shimon ( ods15 ods15 dyndns org )
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* @author Maxim Gavrilov ( maxim.gavrilov gmail com )
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*/
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#ifndef AVCODEC_AACDECTAB_H
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#define AVCODEC_AACDECTAB_H
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#include "libavutil/channel_layout.h"
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#include "aac.h"
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#include <stdint.h>
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static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 5, 5, 16, 5, 0 };
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static const uint8_t aac_channel_layout_map[16][16][3] = {
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, },
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{ { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, },
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, },
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
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{ { 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 }, },
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{ { 0, } },
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{ { 0, } },
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{ { 0, } },
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{ { 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 }, },
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
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{
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{ TYPE_SCE, 0, AAC_CHANNEL_FRONT }, // SCE1 = FC,
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{ TYPE_CPE, 0, AAC_CHANNEL_FRONT }, // CPE1 = FLc and FRc,
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{ TYPE_CPE, 1, AAC_CHANNEL_FRONT }, // CPE2 = FL and FR,
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{ TYPE_CPE, 2, AAC_CHANNEL_BACK }, // CPE3 = SiL and SiR,
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{ TYPE_CPE, 3, AAC_CHANNEL_BACK }, // CPE4 = BL and BR,
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{ TYPE_SCE, 1, AAC_CHANNEL_BACK }, // SCE2 = BC,
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{ TYPE_LFE, 0, AAC_CHANNEL_LFE }, // LFE1 = LFE1,
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{ TYPE_LFE, 1, AAC_CHANNEL_LFE }, // LFE2 = LFE2,
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{ TYPE_SCE, 2, AAC_CHANNEL_FRONT }, // SCE3 = TpFC,
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{ TYPE_CPE, 4, AAC_CHANNEL_FRONT }, // CPE5 = TpFL and TpFR,
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{ TYPE_CPE, 5, AAC_CHANNEL_SIDE }, // CPE6 = TpSiL and TpSiR,
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{ TYPE_SCE, 3, AAC_CHANNEL_SIDE }, // SCE4 = TpC,
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{ TYPE_CPE, 6, AAC_CHANNEL_BACK }, // CPE7 = TpBL and TpBR,
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{ TYPE_SCE, 4, AAC_CHANNEL_BACK }, // SCE5 = TpBC,
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{ TYPE_SCE, 5, AAC_CHANNEL_FRONT }, // SCE6 = BtFC,
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{ TYPE_CPE, 7, AAC_CHANNEL_FRONT }, // CPE8 = BtFL and BtFR
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},
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{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, { TYPE_CPE, 2, AAC_CHANNEL_FRONT }, },
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{ { 0, } },
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};
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static const int16_t aac_channel_map[3][4][6] = {
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{
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{ AV_CHAN_FRONT_CENTER, AV_CHAN_FRONT_LEFT_OF_CENTER, AV_CHAN_FRONT_RIGHT_OF_CENTER, AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT, AV_CHAN_NONE },
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{ AV_CHAN_UNUSED, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
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{ AV_CHAN_UNUSED, AV_CHAN_SIDE_LEFT, AV_CHAN_SIDE_RIGHT, AV_CHAN_BACK_LEFT, AV_CHAN_BACK_RIGHT, AV_CHAN_BACK_CENTER },
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{ AV_CHAN_LOW_FREQUENCY, AV_CHAN_LOW_FREQUENCY_2, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
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},
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{
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{ AV_CHAN_TOP_FRONT_CENTER, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_FRONT_LEFT, AV_CHAN_TOP_FRONT_RIGHT, AV_CHAN_NONE },
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{ AV_CHAN_UNUSED, AV_CHAN_TOP_SIDE_LEFT, AV_CHAN_TOP_SIDE_RIGHT, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_CENTER},
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{ AV_CHAN_UNUSED, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_BACK_LEFT, AV_CHAN_TOP_BACK_RIGHT, AV_CHAN_TOP_BACK_CENTER},
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{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE},
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},
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{
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{ AV_CHAN_BOTTOM_FRONT_CENTER, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_BOTTOM_FRONT_LEFT, AV_CHAN_BOTTOM_FRONT_RIGHT, AV_CHAN_NONE },
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{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
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{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
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{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
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},
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};
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#if FF_API_OLD_CHANNEL_LAYOUT
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static const uint64_t aac_channel_layout[] = {
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AV_CH_LAYOUT_MONO,
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AV_CH_LAYOUT_STEREO,
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AV_CH_LAYOUT_SURROUND,
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AV_CH_LAYOUT_4POINT0,
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AV_CH_LAYOUT_5POINT0_BACK,
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AV_CH_LAYOUT_5POINT1_BACK,
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AV_CH_LAYOUT_7POINT1_WIDE_BACK,
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AV_CH_LAYOUT_6POINT1_BACK,
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AV_CH_LAYOUT_7POINT1,
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AV_CH_LAYOUT_22POINT2,
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AV_CH_LAYOUT_7POINT1_TOP_BACK,
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0,
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};
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#endif
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static const AVChannelLayout aac_ch_layout[] = {
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AV_CHANNEL_LAYOUT_MONO,
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AV_CHANNEL_LAYOUT_STEREO,
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AV_CHANNEL_LAYOUT_SURROUND,
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AV_CHANNEL_LAYOUT_4POINT0,
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AV_CHANNEL_LAYOUT_5POINT0_BACK,
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AV_CHANNEL_LAYOUT_5POINT1_BACK,
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AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK,
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AV_CHANNEL_LAYOUT_6POINT1_BACK,
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AV_CHANNEL_LAYOUT_7POINT1,
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AV_CHANNEL_LAYOUT_22POINT2,
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AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK,
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{ 0 },
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};
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#endif /* AVCODEC_AACDECTAB_H */
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