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https://github.com/FFmpeg/FFmpeg.git
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c3a7999099
Compiler: MSVC 14.35.32215 Error type: error C2059: syntax error: '}' Related commit:9e1ffed
fate/mov: add PCM in mp4 testd7e8643
avformat/mov: parse ISO-14496-12 ChannelLayout Signed-off-by: Tong Wu <tong1.wu@intel.com> Signed-off-by: Zhao Zhili <zhilizhao@tencent.com> Reviewed-by: Haihao Xiang <haihao.xiang@intel.com>
850 lines
29 KiB
C
850 lines
29 KiB
C
/*
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* Copyright (c) 2011 Justin Ruggles
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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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* mov 'chan' tag reading/writing.
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* @author Justin Ruggles
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*/
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#include <stdint.h>
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#include "libavutil/channel_layout.h"
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#include "libavcodec/codec_id.h"
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#include "mov_chan.h"
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struct MovChannelLayoutMap {
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uint32_t tag;
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uint64_t layout;
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_misc[] = {
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{ MOV_CH_LAYOUT_USE_DESCRIPTIONS, 0 },
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{ MOV_CH_LAYOUT_USE_BITMAP, 0 },
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{ MOV_CH_LAYOUT_DISCRETEINORDER, 0 },
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{ MOV_CH_LAYOUT_UNKNOWN, 0 },
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{ MOV_CH_LAYOUT_TMH_10_2_STD, 0 }, // L, R, C, Vhc, Lsd, Rsd,
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// Ls, Rs, Vhl, Vhr, Lw, Rw,
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// Csd, Cs, LFE1, LFE2
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{ MOV_CH_LAYOUT_TMH_10_2_FULL, 0 }, // L, R, C, Vhc, Lsd, Rsd,
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// Ls, Rs, Vhl, Vhr, Lw, Rw,
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// Csd, Cs, LFE1, LFE2, Lc, Rc,
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// HI, VI, Haptic
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_1ch[] = {
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{ MOV_CH_LAYOUT_MONO, AV_CH_LAYOUT_MONO }, // C
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_2ch[] = {
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{ MOV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_STEREO }, // L, R
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{ MOV_CH_LAYOUT_STEREOHEADPHONES, AV_CH_LAYOUT_STEREO }, // L, R
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{ MOV_CH_LAYOUT_BINAURAL, AV_CH_LAYOUT_STEREO }, // L, R
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{ MOV_CH_LAYOUT_MIDSIDE, AV_CH_LAYOUT_STEREO }, // C, sides
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{ MOV_CH_LAYOUT_XY, AV_CH_LAYOUT_STEREO }, // X (left), Y (right)
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{ MOV_CH_LAYOUT_MATRIXSTEREO, AV_CH_LAYOUT_STEREO_DOWNMIX }, // Lt, Rt
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{ MOV_CH_LAYOUT_AC3_1_0_1, AV_CH_LAYOUT_MONO | // C, LFE
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AV_CH_LOW_FREQUENCY },
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_3ch[] = {
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{ MOV_CH_LAYOUT_MPEG_3_0_A, AV_CH_LAYOUT_SURROUND }, // L, R, C
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{ MOV_CH_LAYOUT_MPEG_3_0_B, AV_CH_LAYOUT_SURROUND }, // C, L, R
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{ MOV_CH_LAYOUT_AC3_3_0, AV_CH_LAYOUT_SURROUND }, // L, C, R
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{ MOV_CH_LAYOUT_ITU_2_1, AV_CH_LAYOUT_2_1 }, // L, R, Cs
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{ MOV_CH_LAYOUT_DVD_4, AV_CH_LAYOUT_2POINT1 }, // L, R, LFE
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_4ch[] = {
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{ MOV_CH_LAYOUT_AMBISONIC_B_FORMAT, 0 }, // W, X, Y, Z
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{ MOV_CH_LAYOUT_QUADRAPHONIC, AV_CH_LAYOUT_QUAD }, // L, R, Rls, Rrs
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{ MOV_CH_LAYOUT_MPEG_4_0_A, AV_CH_LAYOUT_4POINT0 }, // L, R, C, Cs
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{ MOV_CH_LAYOUT_MPEG_4_0_B, AV_CH_LAYOUT_4POINT0 }, // C, L, R, Cs
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{ MOV_CH_LAYOUT_AC3_3_1, AV_CH_LAYOUT_4POINT0 }, // L, C, R, Cs
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{ MOV_CH_LAYOUT_ITU_2_2, AV_CH_LAYOUT_2_2 }, // L, R, Ls, Rs
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{ MOV_CH_LAYOUT_DVD_5, AV_CH_LAYOUT_2_1 | // L, R, LFE, Cs
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AV_CH_LOW_FREQUENCY },
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{ MOV_CH_LAYOUT_AC3_2_1_1, AV_CH_LAYOUT_2_1 | // L, R, Cs, LFE
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AV_CH_LOW_FREQUENCY },
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{ MOV_CH_LAYOUT_DVD_10, AV_CH_LAYOUT_3POINT1 }, // L, R, C, LFE
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{ MOV_CH_LAYOUT_AC3_3_0_1, AV_CH_LAYOUT_3POINT1 }, // L, C, R, LFE
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{ MOV_CH_LAYOUT_DTS_3_1, AV_CH_LAYOUT_3POINT1 }, // C, L, R, LFE
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_5ch[] = {
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{ MOV_CH_LAYOUT_PENTAGONAL, AV_CH_LAYOUT_5POINT0_BACK }, // L, R, Rls, Rrs, C
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{ MOV_CH_LAYOUT_MPEG_5_0_A, AV_CH_LAYOUT_5POINT0 }, // L, R, C, Ls, Rs
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{ MOV_CH_LAYOUT_MPEG_5_0_B, AV_CH_LAYOUT_5POINT0 }, // L, R, Ls, Rs, C
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{ MOV_CH_LAYOUT_MPEG_5_0_C, AV_CH_LAYOUT_5POINT0 }, // L, C, R, Ls, Rs
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{ MOV_CH_LAYOUT_MPEG_5_0_D, AV_CH_LAYOUT_5POINT0 }, // C, L, R, Ls, Rs
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{ MOV_CH_LAYOUT_DVD_6, AV_CH_LAYOUT_2_2 | // L, R, LFE, Ls, Rs
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AV_CH_LOW_FREQUENCY },
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{ MOV_CH_LAYOUT_DVD_18, AV_CH_LAYOUT_2_2 | // L, R, Ls, Rs, LFE
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AV_CH_LOW_FREQUENCY },
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{ MOV_CH_LAYOUT_DVD_11, AV_CH_LAYOUT_4POINT1 }, // L, R, C, LFE, Cs
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{ MOV_CH_LAYOUT_AC3_3_1_1, AV_CH_LAYOUT_4POINT1 }, // L, C, R, Cs, LFE
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{ MOV_CH_LAYOUT_DTS_4_1, AV_CH_LAYOUT_4POINT1 }, // C, L, R, Cs, LFE
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_6ch[] = {
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{ MOV_CH_LAYOUT_HEXAGONAL, AV_CH_LAYOUT_HEXAGONAL }, // L, R, Rls, Rrs, C, Cs
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{ MOV_CH_LAYOUT_DTS_6_0_C, AV_CH_LAYOUT_HEXAGONAL }, // C, Cs, L, R, Rls, Rrs
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{ MOV_CH_LAYOUT_MPEG_5_1_A, AV_CH_LAYOUT_5POINT1 }, // L, R, C, LFE, Ls, Rs
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{ MOV_CH_LAYOUT_MPEG_5_1_B, AV_CH_LAYOUT_5POINT1 }, // L, R, Ls, Rs, C, LFE
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{ MOV_CH_LAYOUT_MPEG_5_1_C, AV_CH_LAYOUT_5POINT1 }, // L, C, R, Ls, Rs, LFE
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{ MOV_CH_LAYOUT_MPEG_5_1_D, AV_CH_LAYOUT_5POINT1 }, // C, L, R, Ls, Rs, LFE
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{ MOV_CH_LAYOUT_AUDIOUNIT_6_0, AV_CH_LAYOUT_6POINT0 }, // L, R, Ls, Rs, C, Cs
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{ MOV_CH_LAYOUT_AAC_6_0, AV_CH_LAYOUT_6POINT0 }, // C, L, R, Ls, Rs, Cs
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{ MOV_CH_LAYOUT_EAC3_6_0_A, AV_CH_LAYOUT_6POINT0 }, // L, C, R, Ls, Rs, Cs
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{ MOV_CH_LAYOUT_DTS_6_0_A, AV_CH_LAYOUT_6POINT0_FRONT }, // Lc, Rc, L, R, Ls, Rs
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{ MOV_CH_LAYOUT_DTS_6_0_B, AV_CH_LAYOUT_5POINT0_BACK | // C, L, R, Rls, Rrs, Ts
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AV_CH_TOP_CENTER },
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_7ch[] = {
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{ MOV_CH_LAYOUT_MPEG_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, R, C, LFE, Ls, Rs, Cs
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{ MOV_CH_LAYOUT_AAC_6_1, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, Cs, LFE
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{ MOV_CH_LAYOUT_EAC3_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, C, R, Ls, Rs, LFE, Cs
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{ MOV_CH_LAYOUT_DTS_6_1_D, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, LFE, Cs
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{ MOV_CH_LAYOUT_AUDIOUNIT_7_0, AV_CH_LAYOUT_7POINT0 }, // L, R, Ls, Rs, C, Rls, Rrs
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{ MOV_CH_LAYOUT_AAC_7_0, AV_CH_LAYOUT_7POINT0 }, // C, L, R, Ls, Rs, Rls, Rrs
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{ MOV_CH_LAYOUT_EAC3_7_0_A, AV_CH_LAYOUT_7POINT0 }, // L, C, R, Ls, Rs, Rls, Rrs
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{ MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT, AV_CH_LAYOUT_7POINT0_FRONT }, // L, R, Ls, Rs, C, Lc, Rc
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{ MOV_CH_LAYOUT_DTS_7_0, AV_CH_LAYOUT_7POINT0_FRONT }, // Lc, C, Rc, L, R, Ls, Rs
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{ MOV_CH_LAYOUT_EAC3_6_1_B, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts
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AV_CH_TOP_CENTER },
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{ MOV_CH_LAYOUT_EAC3_6_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhc
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AV_CH_TOP_FRONT_CENTER },
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{ MOV_CH_LAYOUT_DTS_6_1_A, AV_CH_LAYOUT_6POINT1_FRONT }, // Lc, Rc, L, R, Ls, Rs, LFE
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{ MOV_CH_LAYOUT_DTS_6_1_B, AV_CH_LAYOUT_5POINT1_BACK | // C, L, R, Rls, Rrs, Ts, LFE
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AV_CH_TOP_CENTER },
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{ MOV_CH_LAYOUT_DTS_6_1_C, AV_CH_LAYOUT_6POINT1_BACK }, // C, Cs, L, R, Rls, Rrs, LFE
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_8ch[] = {
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{ MOV_CH_LAYOUT_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // L, R, Rls, Rrs, C, Cs, Ls, Rs
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{ MOV_CH_LAYOUT_AAC_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // C, L, R, Ls, Rs, Rls, Rrs, Cs
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{ MOV_CH_LAYOUT_CUBE, AV_CH_LAYOUT_CUBE }, // L, R, Rls, Rrs, Vhl, Vhr, Rlt, Rrt
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{ MOV_CH_LAYOUT_MPEG_7_1_A, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, C, LFE, Ls, Rs, Lc, Rc
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{ MOV_CH_LAYOUT_MPEG_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // C, Lc, Rc, L, R, Ls, Rs, LFE
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{ MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, Ls, Rs, C, LFE, Lc, Rc
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{ MOV_CH_LAYOUT_EAC3_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // L, C, R, Ls, Rs, LFE, Lc, Rc
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{ MOV_CH_LAYOUT_DTS_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // Lc, C, Rc, L, R, Ls, Rs, LFE
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{ MOV_CH_LAYOUT_MPEG_7_1_C, AV_CH_LAYOUT_7POINT1 }, // L, R, C, LFE, Ls, Rs, Rls, Rrs
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{ MOV_CH_LAYOUT_EAC3_7_1_A, AV_CH_LAYOUT_7POINT1 }, // L, C, R, Ls, Rs, LFE, Rls, Rrs
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{ MOV_CH_LAYOUT_SMPTE_DTV, AV_CH_LAYOUT_5POINT1 | // L, R, C, LFE, Ls, Rs, Lt, Rt
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AV_CH_LAYOUT_STEREO_DOWNMIX },
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{ MOV_CH_LAYOUT_EAC3_7_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lsd, Rsd
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AV_CH_SURROUND_DIRECT_LEFT |
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AV_CH_SURROUND_DIRECT_RIGHT },
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{ MOV_CH_LAYOUT_EAC3_7_1_D, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lw, Rw
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AV_CH_WIDE_LEFT |
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AV_CH_WIDE_RIGHT },
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{ MOV_CH_LAYOUT_EAC3_7_1_E, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhl, Vhr
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AV_CH_TOP_FRONT_LEFT |
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AV_CH_TOP_FRONT_RIGHT },
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{ MOV_CH_LAYOUT_EAC3_7_1_F, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Cs, Ts
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AV_CH_BACK_CENTER |
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AV_CH_TOP_CENTER },
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{ MOV_CH_LAYOUT_EAC3_7_1_G, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Cs, Vhc
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AV_CH_BACK_CENTER |
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AV_CH_TOP_FRONT_CENTER },
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{ MOV_CH_LAYOUT_EAC3_7_1_H, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts, Vhc
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AV_CH_TOP_CENTER |
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AV_CH_TOP_FRONT_CENTER },
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{ MOV_CH_LAYOUT_DTS_8_0_A, AV_CH_LAYOUT_2_2 | // Lc, Rc, L, R, Ls, Rs, Rls, Rrs
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AV_CH_BACK_LEFT |
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AV_CH_BACK_RIGHT |
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AV_CH_FRONT_LEFT_OF_CENTER |
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AV_CH_FRONT_RIGHT_OF_CENTER },
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{ MOV_CH_LAYOUT_DTS_8_0_B, AV_CH_LAYOUT_5POINT0 | // Lc, C, Rc, L, R, Ls, Cs, Rs
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AV_CH_FRONT_LEFT_OF_CENTER |
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AV_CH_FRONT_RIGHT_OF_CENTER |
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AV_CH_BACK_CENTER },
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_9ch[] = {
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{ MOV_CH_LAYOUT_DTS_8_1_A, AV_CH_LAYOUT_2_2 | // Lc, Rc, L, R, Ls, Rs, Rls, Rrs, LFE
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AV_CH_BACK_LEFT |
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AV_CH_BACK_RIGHT |
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AV_CH_FRONT_LEFT_OF_CENTER |
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AV_CH_FRONT_RIGHT_OF_CENTER |
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AV_CH_LOW_FREQUENCY },
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{ MOV_CH_LAYOUT_DTS_8_1_B, AV_CH_LAYOUT_7POINT1_WIDE | // Lc, C, Rc, L, R, Ls, Cs, Rs, LFE
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AV_CH_BACK_CENTER },
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap * const mov_ch_layout_map[] = {
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mov_ch_layout_map_misc,
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mov_ch_layout_map_1ch,
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mov_ch_layout_map_2ch,
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mov_ch_layout_map_3ch,
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mov_ch_layout_map_4ch,
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mov_ch_layout_map_5ch,
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mov_ch_layout_map_6ch,
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mov_ch_layout_map_7ch,
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mov_ch_layout_map_8ch,
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mov_ch_layout_map_9ch,
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};
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static const enum MovChannelLayoutTag mov_ch_layouts_aac[] = {
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MOV_CH_LAYOUT_MONO,
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MOV_CH_LAYOUT_STEREO,
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MOV_CH_LAYOUT_AC3_1_0_1,
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MOV_CH_LAYOUT_MPEG_3_0_B,
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MOV_CH_LAYOUT_ITU_2_1,
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MOV_CH_LAYOUT_DVD_4,
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MOV_CH_LAYOUT_QUADRAPHONIC,
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MOV_CH_LAYOUT_MPEG_4_0_B,
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MOV_CH_LAYOUT_ITU_2_2,
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MOV_CH_LAYOUT_AC3_2_1_1,
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MOV_CH_LAYOUT_DTS_3_1,
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MOV_CH_LAYOUT_MPEG_5_0_D,
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MOV_CH_LAYOUT_DVD_18,
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MOV_CH_LAYOUT_DTS_4_1,
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MOV_CH_LAYOUT_MPEG_5_1_D,
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MOV_CH_LAYOUT_AAC_6_0,
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MOV_CH_LAYOUT_DTS_6_0_A,
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MOV_CH_LAYOUT_AAC_6_1,
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MOV_CH_LAYOUT_AAC_7_0,
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MOV_CH_LAYOUT_DTS_6_1_A,
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MOV_CH_LAYOUT_AAC_OCTAGONAL,
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MOV_CH_LAYOUT_MPEG_7_1_B,
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MOV_CH_LAYOUT_DTS_8_0_A,
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0,
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};
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static const enum MovChannelLayoutTag mov_ch_layouts_ac3[] = {
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MOV_CH_LAYOUT_MONO,
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MOV_CH_LAYOUT_STEREO,
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MOV_CH_LAYOUT_AC3_1_0_1,
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MOV_CH_LAYOUT_AC3_3_0,
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MOV_CH_LAYOUT_ITU_2_1,
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MOV_CH_LAYOUT_DVD_4,
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MOV_CH_LAYOUT_AC3_3_1,
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MOV_CH_LAYOUT_ITU_2_2,
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MOV_CH_LAYOUT_AC3_2_1_1,
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MOV_CH_LAYOUT_AC3_3_0_1,
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MOV_CH_LAYOUT_MPEG_5_0_C,
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MOV_CH_LAYOUT_DVD_18,
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MOV_CH_LAYOUT_AC3_3_1_1,
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MOV_CH_LAYOUT_MPEG_5_1_C,
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0,
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};
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static const enum MovChannelLayoutTag mov_ch_layouts_alac[] = {
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MOV_CH_LAYOUT_MONO,
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MOV_CH_LAYOUT_STEREO,
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MOV_CH_LAYOUT_MPEG_3_0_B,
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MOV_CH_LAYOUT_MPEG_4_0_B,
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MOV_CH_LAYOUT_MPEG_5_0_D,
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MOV_CH_LAYOUT_MPEG_5_1_D,
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MOV_CH_LAYOUT_AAC_6_1,
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MOV_CH_LAYOUT_MPEG_7_1_B,
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0,
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};
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static const enum MovChannelLayoutTag mov_ch_layouts_wav[] = {
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MOV_CH_LAYOUT_MONO,
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MOV_CH_LAYOUT_STEREO,
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MOV_CH_LAYOUT_MATRIXSTEREO,
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MOV_CH_LAYOUT_MPEG_3_0_A,
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MOV_CH_LAYOUT_QUADRAPHONIC,
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MOV_CH_LAYOUT_MPEG_5_0_A,
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MOV_CH_LAYOUT_MPEG_5_1_A,
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MOV_CH_LAYOUT_MPEG_6_1_A,
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MOV_CH_LAYOUT_MPEG_7_1_A,
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MOV_CH_LAYOUT_MPEG_7_1_C,
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MOV_CH_LAYOUT_SMPTE_DTV,
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0,
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};
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static const struct {
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enum AVCodecID codec_id;
|
|
const enum MovChannelLayoutTag *layouts;
|
|
} mov_codec_ch_layouts[] = {
|
|
{ AV_CODEC_ID_AAC, mov_ch_layouts_aac },
|
|
{ AV_CODEC_ID_AC3, mov_ch_layouts_ac3 },
|
|
{ AV_CODEC_ID_ALAC, mov_ch_layouts_alac },
|
|
{ AV_CODEC_ID_PCM_U8, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_S8, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_S16LE, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_S16BE, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_S24LE, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_S24BE, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_S32LE, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_S32BE, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_F32LE, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_F32BE, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_F64LE, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_PCM_F64BE, mov_ch_layouts_wav },
|
|
{ AV_CODEC_ID_NONE, NULL },
|
|
};
|
|
|
|
/**
|
|
* Get the channel layout for the specified channel layout tag.
|
|
*
|
|
* @param[in] tag channel layout tag
|
|
* @param[out] bitmap channel bitmap (only used if needed)
|
|
* @return channel layout
|
|
*/
|
|
static uint64_t mov_get_channel_layout(uint32_t tag, uint32_t bitmap)
|
|
{
|
|
int i, channels;
|
|
const struct MovChannelLayoutMap *layout_map;
|
|
|
|
/* use ff_mov_get_channel_label() to build a layout instead */
|
|
if (tag == MOV_CH_LAYOUT_USE_DESCRIPTIONS)
|
|
return 0;
|
|
|
|
/* handle the use of the channel bitmap */
|
|
if (tag == MOV_CH_LAYOUT_USE_BITMAP)
|
|
return bitmap < 0x40000 ? bitmap : 0;
|
|
|
|
/* get the layout map based on the channel count for the specified layout tag */
|
|
channels = tag & 0xFFFF;
|
|
if (channels > 9)
|
|
channels = 0;
|
|
layout_map = mov_ch_layout_map[channels];
|
|
|
|
/* find the channel layout for the specified layout tag */
|
|
for (i = 0; layout_map[i].tag != 0; i++) {
|
|
if (layout_map[i].tag == tag)
|
|
break;
|
|
}
|
|
return layout_map[i].layout;
|
|
}
|
|
|
|
static uint64_t mov_get_channel_mask(uint32_t label)
|
|
{
|
|
if (label == 0)
|
|
return 0;
|
|
if (label <= 18)
|
|
return 1U << (label - 1);
|
|
if (label == 35)
|
|
return AV_CH_WIDE_LEFT;
|
|
if (label == 36)
|
|
return AV_CH_WIDE_RIGHT;
|
|
if (label == 37)
|
|
return AV_CH_LOW_FREQUENCY_2;
|
|
if (label == 38)
|
|
return AV_CH_STEREO_LEFT;
|
|
if (label == 39)
|
|
return AV_CH_STEREO_RIGHT;
|
|
return 0;
|
|
}
|
|
|
|
static uint32_t mov_get_channel_label(enum AVChannel channel)
|
|
{
|
|
if (channel < 0)
|
|
return 0;
|
|
if (channel <= AV_CHAN_TOP_BACK_RIGHT)
|
|
return channel + 1;
|
|
if (channel == AV_CHAN_WIDE_LEFT)
|
|
return 35;
|
|
if (channel == AV_CHAN_WIDE_RIGHT)
|
|
return 36;
|
|
if (channel == AV_CHAN_LOW_FREQUENCY_2)
|
|
return 37;
|
|
if (channel == AV_CHAN_STEREO_LEFT)
|
|
return 38;
|
|
if (channel == AV_CHAN_STEREO_RIGHT)
|
|
return 39;
|
|
return 0;
|
|
}
|
|
|
|
int ff_mov_get_channel_layout_tag(const AVCodecParameters *par,
|
|
uint32_t *layout,
|
|
uint32_t *bitmap,
|
|
uint32_t **pchannel_desc)
|
|
{
|
|
int i, j;
|
|
uint32_t tag = 0;
|
|
const enum MovChannelLayoutTag *layouts = NULL;
|
|
|
|
/* find the layout list for the specified codec */
|
|
for (i = 0; mov_codec_ch_layouts[i].codec_id != AV_CODEC_ID_NONE; i++) {
|
|
if (mov_codec_ch_layouts[i].codec_id == par->codec_id)
|
|
break;
|
|
}
|
|
if (mov_codec_ch_layouts[i].codec_id != AV_CODEC_ID_NONE)
|
|
layouts = mov_codec_ch_layouts[i].layouts;
|
|
|
|
if (layouts) {
|
|
int channels;
|
|
const struct MovChannelLayoutMap *layout_map;
|
|
|
|
/* get the layout map based on the channel count */
|
|
channels = par->ch_layout.nb_channels;
|
|
if (channels > 9)
|
|
channels = 0;
|
|
layout_map = mov_ch_layout_map[channels];
|
|
|
|
/* find the layout tag for the specified channel layout */
|
|
for (i = 0; layouts[i] != 0; i++) {
|
|
if ((layouts[i] & 0xFFFF) != channels)
|
|
continue;
|
|
for (j = 0; layout_map[j].tag != 0; j++) {
|
|
if (layout_map[j].tag == layouts[i] &&
|
|
(par->ch_layout.order == AV_CHANNEL_ORDER_NATIVE &&
|
|
layout_map[j].layout == par->ch_layout.u.mask))
|
|
break;
|
|
}
|
|
if (layout_map[j].tag)
|
|
break;
|
|
}
|
|
tag = layouts[i];
|
|
}
|
|
|
|
*layout = tag;
|
|
*bitmap = 0;
|
|
*pchannel_desc = NULL;
|
|
|
|
/* if no tag was found, use channel bitmap or description as a backup if possible */
|
|
if (tag == 0) {
|
|
uint32_t *channel_desc;
|
|
if (par->ch_layout.order == AV_CHANNEL_ORDER_NATIVE &&
|
|
par->ch_layout.u.mask < 0x40000) {
|
|
*layout = MOV_CH_LAYOUT_USE_BITMAP;
|
|
*bitmap = (uint32_t)par->ch_layout.u.mask;
|
|
return 0;
|
|
} else if (par->ch_layout.order == AV_CHANNEL_ORDER_UNSPEC)
|
|
return AVERROR(ENOSYS);
|
|
|
|
channel_desc = av_malloc_array(par->ch_layout.nb_channels, sizeof(*channel_desc));
|
|
if (!channel_desc)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for (i = 0; i < par->ch_layout.nb_channels; i++) {
|
|
channel_desc[i] =
|
|
mov_get_channel_label(av_channel_layout_channel_from_index(&par->ch_layout, i));
|
|
|
|
if (channel_desc[i] == 0) {
|
|
av_free(channel_desc);
|
|
return AVERROR(ENOSYS);
|
|
}
|
|
}
|
|
|
|
*pchannel_desc = channel_desc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_mov_read_chan(AVFormatContext *s, AVIOContext *pb, AVStream *st,
|
|
int64_t size)
|
|
{
|
|
uint32_t layout_tag, bitmap, num_descr;
|
|
uint64_t label_mask, mask = 0;
|
|
int i;
|
|
|
|
if (size < 12)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
layout_tag = avio_rb32(pb);
|
|
bitmap = avio_rb32(pb);
|
|
num_descr = avio_rb32(pb);
|
|
|
|
av_log(s, AV_LOG_DEBUG, "chan: layout=%"PRIu32" "
|
|
"bitmap=%"PRIu32" num_descr=%"PRIu32"\n",
|
|
layout_tag, bitmap, num_descr);
|
|
|
|
if (size < 12ULL + num_descr * 20ULL)
|
|
return 0;
|
|
|
|
label_mask = 0;
|
|
for (i = 0; i < num_descr; i++) {
|
|
uint32_t label;
|
|
if (pb->eof_reached) {
|
|
av_log(s, AV_LOG_ERROR,
|
|
"reached EOF while reading channel layout\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
label = avio_rb32(pb); // mChannelLabel
|
|
avio_rb32(pb); // mChannelFlags
|
|
avio_rl32(pb); // mCoordinates[0]
|
|
avio_rl32(pb); // mCoordinates[1]
|
|
avio_rl32(pb); // mCoordinates[2]
|
|
size -= 20;
|
|
if (layout_tag == 0) {
|
|
uint64_t mask_incr = mov_get_channel_mask(label);
|
|
if (mask_incr == 0) {
|
|
label_mask = 0;
|
|
break;
|
|
}
|
|
label_mask |= mask_incr;
|
|
}
|
|
}
|
|
if (layout_tag == 0) {
|
|
if (label_mask)
|
|
mask = label_mask;
|
|
} else
|
|
mask = mov_get_channel_layout(layout_tag, bitmap);
|
|
|
|
if (mask) {
|
|
av_channel_layout_uninit(&st->codecpar->ch_layout);
|
|
av_channel_layout_from_mask(&st->codecpar->ch_layout, mask);
|
|
}
|
|
avio_skip(pb, size - 12);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ISO/IEC 23001-8, 8.2 */
|
|
static const AVChannelLayout iso_channel_configuration[] = {
|
|
// 0: any setup
|
|
{0},
|
|
|
|
// 1: centre front
|
|
AV_CHANNEL_LAYOUT_MONO,
|
|
|
|
// 2: left front, right front
|
|
AV_CHANNEL_LAYOUT_STEREO,
|
|
|
|
// 3: centre front, left front, right front
|
|
AV_CHANNEL_LAYOUT_SURROUND,
|
|
|
|
// 4: centre front, left front, right front, rear centre
|
|
AV_CHANNEL_LAYOUT_4POINT0,
|
|
|
|
// 5: centre front, left front, right front, left surround, right surround
|
|
AV_CHANNEL_LAYOUT_5POINT0,
|
|
|
|
// 6: 5 + LFE
|
|
AV_CHANNEL_LAYOUT_5POINT1,
|
|
|
|
// 7: centre front, left front centre, right front centre,
|
|
// left front, right front, left surround, right surround, LFE
|
|
AV_CHANNEL_LAYOUT_7POINT1_WIDE,
|
|
|
|
// 8: channel1, channel2
|
|
AV_CHANNEL_LAYOUT_STEREO_DOWNMIX,
|
|
|
|
// 9: left front, right front, rear centre
|
|
AV_CHANNEL_LAYOUT_2_1,
|
|
|
|
// 10: left front, right front, left surround, right surround
|
|
AV_CHANNEL_LAYOUT_2_2,
|
|
|
|
// 11: centre front, left front, right front, left surround, right surround, rear centre, LFE
|
|
AV_CHANNEL_LAYOUT_6POINT1,
|
|
|
|
// 12: centre front, left front, right front
|
|
// left surround, right surround
|
|
// rear surround left, rear surround right
|
|
// LFE
|
|
AV_CHANNEL_LAYOUT_7POINT1,
|
|
|
|
// 13:
|
|
AV_CHANNEL_LAYOUT_22POINT2,
|
|
|
|
// 14:
|
|
AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK,
|
|
|
|
// TODO: 15 - 20
|
|
};
|
|
|
|
/* ISO/IEC 23001-8, table 8 */
|
|
static const enum AVChannel iso_channel_position[] = {
|
|
// 0: left front
|
|
AV_CHAN_FRONT_LEFT,
|
|
|
|
// 1: right front
|
|
AV_CHAN_FRONT_RIGHT,
|
|
|
|
// 2: centre front
|
|
AV_CHAN_FRONT_CENTER,
|
|
|
|
// 3: low frequence enhancement
|
|
AV_CHAN_LOW_FREQUENCY,
|
|
|
|
// 4: left surround
|
|
// TODO
|
|
AV_CHAN_NONE,
|
|
|
|
// 5: right surround
|
|
// TODO
|
|
AV_CHAN_NONE,
|
|
|
|
// 6: left front centre
|
|
AV_CHAN_FRONT_LEFT_OF_CENTER,
|
|
|
|
// 7: right front centre
|
|
AV_CHAN_FRONT_RIGHT_OF_CENTER,
|
|
|
|
// 8: rear surround left
|
|
AV_CHAN_BACK_LEFT,
|
|
|
|
// 9: rear surround right
|
|
AV_CHAN_BACK_RIGHT,
|
|
|
|
// 10: rear centre
|
|
AV_CHAN_BACK_CENTER,
|
|
|
|
// 11: left surround direct
|
|
AV_CHAN_SURROUND_DIRECT_LEFT,
|
|
|
|
// 12: right surround direct
|
|
AV_CHAN_SURROUND_DIRECT_RIGHT,
|
|
|
|
// 13: left side surround
|
|
AV_CHAN_SIDE_LEFT,
|
|
|
|
// 14: right side surround
|
|
AV_CHAN_SIDE_RIGHT,
|
|
|
|
// 15: left wide front
|
|
AV_CHAN_WIDE_LEFT,
|
|
|
|
// 16: right wide front
|
|
AV_CHAN_WIDE_RIGHT,
|
|
|
|
// 17: left front vertical height
|
|
AV_CHAN_TOP_FRONT_LEFT,
|
|
|
|
// 18: right front vertical height
|
|
AV_CHAN_TOP_FRONT_RIGHT,
|
|
|
|
// 19: centre front vertical height
|
|
AV_CHAN_TOP_FRONT_CENTER,
|
|
|
|
// 20: left surround vertical height rear
|
|
AV_CHAN_TOP_BACK_LEFT,
|
|
|
|
// 21: right surround vertical height rear
|
|
AV_CHAN_TOP_BACK_RIGHT,
|
|
|
|
// 22: centre vertical height rear
|
|
AV_CHAN_TOP_BACK_CENTER,
|
|
|
|
// 23: left vertical height side surround
|
|
AV_CHAN_TOP_SIDE_LEFT,
|
|
|
|
// 24: right vertical height side surround
|
|
AV_CHAN_TOP_SIDE_RIGHT,
|
|
|
|
// 25: top centre surround
|
|
AV_CHAN_TOP_CENTER,
|
|
|
|
// 26: low frequency enhancement 2
|
|
AV_CHAN_LOW_FREQUENCY_2,
|
|
|
|
// 27: left front vertical bottom
|
|
AV_CHAN_BOTTOM_FRONT_LEFT,
|
|
|
|
// 28: right front vertical bottom
|
|
AV_CHAN_BOTTOM_FRONT_RIGHT,
|
|
|
|
// 29: centre front vertical bottom
|
|
AV_CHAN_BOTTOM_FRONT_CENTER,
|
|
|
|
// 30: left vertical height surround
|
|
// TODO
|
|
AV_CHAN_NONE,
|
|
|
|
// 31: right vertical height surround
|
|
// TODO
|
|
AV_CHAN_NONE,
|
|
|
|
// 32, 33, 34, 35, reserved
|
|
AV_CHAN_NONE,
|
|
AV_CHAN_NONE,
|
|
AV_CHAN_NONE,
|
|
AV_CHAN_NONE,
|
|
|
|
// 36: low frequency enhancement 3
|
|
AV_CHAN_NONE,
|
|
|
|
// 37: left edge of screen
|
|
AV_CHAN_NONE,
|
|
// 38: right edge of screen
|
|
AV_CHAN_NONE,
|
|
// 39: half-way between centre of screen and left edge of screen
|
|
AV_CHAN_NONE,
|
|
// 40: half-way between centre of screen and right edge of screen
|
|
AV_CHAN_NONE,
|
|
|
|
// 41: left back surround
|
|
AV_CHAN_NONE,
|
|
|
|
// 42: right back surround
|
|
AV_CHAN_NONE,
|
|
|
|
// 43 - 125: reserved
|
|
// 126: explicit position
|
|
// 127: unknown /undefined
|
|
};
|
|
|
|
int ff_mov_get_channel_config_from_layout(const AVChannelLayout *layout, int *config)
|
|
{
|
|
// Set default value which means any setup in 23001-8
|
|
*config = 0;
|
|
for (int i = 0; i < FF_ARRAY_ELEMS(iso_channel_configuration); i++) {
|
|
if (!av_channel_layout_compare(layout, iso_channel_configuration + i)) {
|
|
*config = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_mov_get_channel_layout_from_config(int config, AVChannelLayout *layout)
|
|
{
|
|
if (config > 0 && config < FF_ARRAY_ELEMS(iso_channel_configuration)) {
|
|
av_channel_layout_copy(layout, &iso_channel_configuration[config]);
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
int ff_mov_get_channel_positions_from_layout(const AVChannelLayout *layout,
|
|
uint8_t *position, int position_num)
|
|
{
|
|
enum AVChannel channel;
|
|
|
|
if (position_num < layout->nb_channels)
|
|
return AVERROR(EINVAL);
|
|
|
|
for (int i = 0; i < layout->nb_channels; i++) {
|
|
position[i] = 127;
|
|
channel = av_channel_layout_channel_from_index(layout, i);
|
|
if (channel == AV_CHAN_NONE)
|
|
return AVERROR(EINVAL);
|
|
|
|
for (int j = 0; j < FF_ARRAY_ELEMS(iso_channel_position); j++) {
|
|
if (iso_channel_position[j] == channel) {
|
|
position[i] = j;
|
|
break;
|
|
}
|
|
}
|
|
if (position[i] == 127)
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_mov_get_layout_from_channel_positions(const uint8_t *position, int position_num,
|
|
AVChannelLayout *layout)
|
|
{
|
|
int ret;
|
|
enum AVChannel channel;
|
|
|
|
av_channel_layout_uninit(layout);
|
|
|
|
if (position_num <= 63) {
|
|
layout->order = AV_CHANNEL_ORDER_NATIVE;
|
|
layout->nb_channels = position_num;
|
|
for (int i = 0; i < position_num; i++) {
|
|
if (position[i] >= FF_ARRAY_ELEMS(iso_channel_position)) {
|
|
ret = AVERROR_PATCHWELCOME;
|
|
goto error;
|
|
}
|
|
|
|
channel = iso_channel_position[position[i]];
|
|
// unsupported layout
|
|
if (channel == AV_CHAN_NONE) {
|
|
ret = AVERROR_PATCHWELCOME;
|
|
goto error;
|
|
}
|
|
|
|
layout->u.mask |= 1ULL << channel;
|
|
}
|
|
} else {
|
|
layout->order = AV_CHANNEL_ORDER_CUSTOM;
|
|
layout->nb_channels = position_num;
|
|
layout->u.map = av_calloc(position_num, sizeof(*layout->u.map));
|
|
if (!layout->u.map) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto error;
|
|
}
|
|
|
|
for (int i = 0; i < position_num; i++) {
|
|
if (position[i] >= FF_ARRAY_ELEMS(iso_channel_position)) {
|
|
ret = AVERROR_PATCHWELCOME;
|
|
goto error;
|
|
}
|
|
|
|
channel = iso_channel_position[position[i]];
|
|
// unsupported layout
|
|
if (channel == AV_CHAN_NONE) {
|
|
ret = AVERROR_PATCHWELCOME;
|
|
goto error;
|
|
}
|
|
|
|
layout->u.map[i].id = channel;
|
|
}
|
|
}
|
|
|
|
|
|
return 0;
|
|
|
|
error:
|
|
av_channel_layout_uninit(layout);
|
|
return ret;
|
|
}
|