mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
d7e864366b
Only support chnl version 0 now. Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
193 lines
8.5 KiB
C
193 lines
8.5 KiB
C
/*
|
|
* Copyright (c) 2011 Justin Ruggles
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/**
|
|
* mov 'chan' tag reading/writing.
|
|
* @author Justin Ruggles
|
|
*/
|
|
|
|
#ifndef AVFORMAT_MOV_CHAN_H
|
|
#define AVFORMAT_MOV_CHAN_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "libavutil/channel_layout.h"
|
|
#include "libavcodec/codec_id.h"
|
|
#include "libavcodec/codec_par.h"
|
|
#include "avformat.h"
|
|
|
|
/**
|
|
* Channel Layout Tag
|
|
* This tells which channels are present in the audio stream and the order in
|
|
* which they appear.
|
|
*
|
|
* @note We're using the channel layout tag to indicate channel order
|
|
* when the value is greater than 0x10000. The Apple documentation has
|
|
* some contradictions as to how this is actually supposed to be handled.
|
|
*
|
|
* Core Audio File Format Spec:
|
|
* "The high 16 bits indicates a specific ordering of the channels."
|
|
* Core Audio Data Types Reference:
|
|
* "These identifiers specify the channels included in a layout but
|
|
* do not specify a particular ordering of those channels."
|
|
*/
|
|
enum MovChannelLayoutTag {
|
|
#define MOV_CH_LAYOUT_UNKNOWN 0xFFFF0000
|
|
MOV_CH_LAYOUT_USE_DESCRIPTIONS = ( 0 << 16) | 0,
|
|
MOV_CH_LAYOUT_USE_BITMAP = ( 1 << 16) | 0,
|
|
MOV_CH_LAYOUT_DISCRETEINORDER = (147 << 16) | 0,
|
|
MOV_CH_LAYOUT_MONO = (100 << 16) | 1,
|
|
MOV_CH_LAYOUT_STEREO = (101 << 16) | 2,
|
|
MOV_CH_LAYOUT_STEREOHEADPHONES = (102 << 16) | 2,
|
|
MOV_CH_LAYOUT_MATRIXSTEREO = (103 << 16) | 2,
|
|
MOV_CH_LAYOUT_MIDSIDE = (104 << 16) | 2,
|
|
MOV_CH_LAYOUT_XY = (105 << 16) | 2,
|
|
MOV_CH_LAYOUT_BINAURAL = (106 << 16) | 2,
|
|
MOV_CH_LAYOUT_AMBISONIC_B_FORMAT = (107 << 16) | 4,
|
|
MOV_CH_LAYOUT_QUADRAPHONIC = (108 << 16) | 4,
|
|
MOV_CH_LAYOUT_PENTAGONAL = (109 << 16) | 5,
|
|
MOV_CH_LAYOUT_HEXAGONAL = (110 << 16) | 6,
|
|
MOV_CH_LAYOUT_OCTAGONAL = (111 << 16) | 8,
|
|
MOV_CH_LAYOUT_CUBE = (112 << 16) | 8,
|
|
MOV_CH_LAYOUT_MPEG_3_0_A = (113 << 16) | 3,
|
|
MOV_CH_LAYOUT_MPEG_3_0_B = (114 << 16) | 3,
|
|
MOV_CH_LAYOUT_MPEG_4_0_A = (115 << 16) | 4,
|
|
MOV_CH_LAYOUT_MPEG_4_0_B = (116 << 16) | 4,
|
|
MOV_CH_LAYOUT_MPEG_5_0_A = (117 << 16) | 5,
|
|
MOV_CH_LAYOUT_MPEG_5_0_B = (118 << 16) | 5,
|
|
MOV_CH_LAYOUT_MPEG_5_0_C = (119 << 16) | 5,
|
|
MOV_CH_LAYOUT_MPEG_5_0_D = (120 << 16) | 5,
|
|
MOV_CH_LAYOUT_MPEG_5_1_A = (121 << 16) | 6,
|
|
MOV_CH_LAYOUT_MPEG_5_1_B = (122 << 16) | 6,
|
|
MOV_CH_LAYOUT_MPEG_5_1_C = (123 << 16) | 6,
|
|
MOV_CH_LAYOUT_MPEG_5_1_D = (124 << 16) | 6,
|
|
MOV_CH_LAYOUT_MPEG_6_1_A = (125 << 16) | 7,
|
|
MOV_CH_LAYOUT_MPEG_7_1_A = (126 << 16) | 8,
|
|
MOV_CH_LAYOUT_MPEG_7_1_B = (127 << 16) | 8,
|
|
MOV_CH_LAYOUT_MPEG_7_1_C = (128 << 16) | 8,
|
|
MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1 = (129 << 16) | 8,
|
|
MOV_CH_LAYOUT_SMPTE_DTV = (130 << 16) | 8,
|
|
MOV_CH_LAYOUT_ITU_2_1 = (131 << 16) | 3,
|
|
MOV_CH_LAYOUT_ITU_2_2 = (132 << 16) | 4,
|
|
MOV_CH_LAYOUT_DVD_4 = (133 << 16) | 3,
|
|
MOV_CH_LAYOUT_DVD_5 = (134 << 16) | 4,
|
|
MOV_CH_LAYOUT_DVD_6 = (135 << 16) | 5,
|
|
MOV_CH_LAYOUT_DVD_10 = (136 << 16) | 4,
|
|
MOV_CH_LAYOUT_DVD_11 = (137 << 16) | 5,
|
|
MOV_CH_LAYOUT_DVD_18 = (138 << 16) | 5,
|
|
MOV_CH_LAYOUT_AUDIOUNIT_6_0 = (139 << 16) | 6,
|
|
MOV_CH_LAYOUT_AUDIOUNIT_7_0 = (140 << 16) | 7,
|
|
MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT = (148 << 16) | 7,
|
|
MOV_CH_LAYOUT_AAC_6_0 = (141 << 16) | 6,
|
|
MOV_CH_LAYOUT_AAC_6_1 = (142 << 16) | 7,
|
|
MOV_CH_LAYOUT_AAC_7_0 = (143 << 16) | 7,
|
|
MOV_CH_LAYOUT_AAC_OCTAGONAL = (144 << 16) | 8,
|
|
MOV_CH_LAYOUT_TMH_10_2_STD = (145 << 16) | 16,
|
|
MOV_CH_LAYOUT_TMH_10_2_FULL = (146 << 16) | 21,
|
|
MOV_CH_LAYOUT_AC3_1_0_1 = (149 << 16) | 2,
|
|
MOV_CH_LAYOUT_AC3_3_0 = (150 << 16) | 3,
|
|
MOV_CH_LAYOUT_AC3_3_1 = (151 << 16) | 4,
|
|
MOV_CH_LAYOUT_AC3_3_0_1 = (152 << 16) | 4,
|
|
MOV_CH_LAYOUT_AC3_2_1_1 = (153 << 16) | 4,
|
|
MOV_CH_LAYOUT_AC3_3_1_1 = (154 << 16) | 5,
|
|
MOV_CH_LAYOUT_EAC3_6_0_A = (155 << 16) | 6,
|
|
MOV_CH_LAYOUT_EAC3_7_0_A = (156 << 16) | 7,
|
|
MOV_CH_LAYOUT_EAC3_6_1_A = (157 << 16) | 7,
|
|
MOV_CH_LAYOUT_EAC3_6_1_B = (158 << 16) | 7,
|
|
MOV_CH_LAYOUT_EAC3_6_1_C = (159 << 16) | 7,
|
|
MOV_CH_LAYOUT_EAC3_7_1_A = (160 << 16) | 8,
|
|
MOV_CH_LAYOUT_EAC3_7_1_B = (161 << 16) | 8,
|
|
MOV_CH_LAYOUT_EAC3_7_1_C = (162 << 16) | 8,
|
|
MOV_CH_LAYOUT_EAC3_7_1_D = (163 << 16) | 8,
|
|
MOV_CH_LAYOUT_EAC3_7_1_E = (164 << 16) | 8,
|
|
MOV_CH_LAYOUT_EAC3_7_1_F = (165 << 16) | 8,
|
|
MOV_CH_LAYOUT_EAC3_7_1_G = (166 << 16) | 8,
|
|
MOV_CH_LAYOUT_EAC3_7_1_H = (167 << 16) | 8,
|
|
MOV_CH_LAYOUT_DTS_3_1 = (168 << 16) | 4,
|
|
MOV_CH_LAYOUT_DTS_4_1 = (169 << 16) | 5,
|
|
MOV_CH_LAYOUT_DTS_6_0_A = (170 << 16) | 6,
|
|
MOV_CH_LAYOUT_DTS_6_0_B = (171 << 16) | 6,
|
|
MOV_CH_LAYOUT_DTS_6_0_C = (172 << 16) | 6,
|
|
MOV_CH_LAYOUT_DTS_6_1_A = (173 << 16) | 7,
|
|
MOV_CH_LAYOUT_DTS_6_1_B = (174 << 16) | 7,
|
|
MOV_CH_LAYOUT_DTS_6_1_C = (175 << 16) | 7,
|
|
MOV_CH_LAYOUT_DTS_6_1_D = (182 << 16) | 7,
|
|
MOV_CH_LAYOUT_DTS_7_0 = (176 << 16) | 7,
|
|
MOV_CH_LAYOUT_DTS_7_1 = (177 << 16) | 8,
|
|
MOV_CH_LAYOUT_DTS_8_0_A = (178 << 16) | 8,
|
|
MOV_CH_LAYOUT_DTS_8_0_B = (179 << 16) | 8,
|
|
MOV_CH_LAYOUT_DTS_8_1_A = (180 << 16) | 9,
|
|
MOV_CH_LAYOUT_DTS_8_1_B = (181 << 16) | 9,
|
|
};
|
|
|
|
/**
|
|
* Get the channel layout tag for the specified codec id and channel layout.
|
|
* If the layout tag was not found, use a channel bitmap if possible.
|
|
*
|
|
* @param[in] codec_id codec id
|
|
* @param[in] channel_layout channel layout
|
|
* @param[out] bitmap channel bitmap
|
|
* @return channel layout tag
|
|
*/
|
|
int ff_mov_get_channel_layout_tag(const AVCodecParameters *par,
|
|
uint32_t *layout,
|
|
uint32_t *bitmap,
|
|
uint32_t **pchannel_desc);
|
|
|
|
/**
|
|
* Read 'chan' tag from the input stream.
|
|
*
|
|
* @param s AVFormatContext
|
|
* @param pb AVIOContext
|
|
* @param st The stream to set codec values for
|
|
* @param size Remaining size in the 'chan' tag
|
|
* @return 0 if ok, or negative AVERROR code on failure
|
|
*/
|
|
int ff_mov_read_chan(AVFormatContext *s, AVIOContext *pb, AVStream *st,
|
|
int64_t size);
|
|
|
|
/**
|
|
* Get ISO/IEC 23001-8 ChannelConfiguration from AVChannelLayout.
|
|
*
|
|
*/
|
|
int ff_mov_get_channel_config_from_layout(const AVChannelLayout *layout, int *config);
|
|
|
|
/**
|
|
* Get AVChannelLayout from ISO/IEC 23001-8 ChannelConfiguration.
|
|
*
|
|
* @return 0 for success, -1 for doesn't match, layout is untouched on failure
|
|
*/
|
|
|
|
int ff_mov_get_channel_layout_from_config(int config, AVChannelLayout *layout);
|
|
|
|
/**
|
|
* Get ISO/IEC 23001-8 OutputChannelPosition from AVChannelLayout.
|
|
*/
|
|
int ff_mov_get_channel_positions_from_layout(const AVChannelLayout *layout,
|
|
uint8_t *position, int position_num);
|
|
|
|
/**
|
|
* Get AVChannelLayout from ISO/IEC 23001-8 OutputChannelPosition.
|
|
*/
|
|
int ff_mov_get_layout_from_channel_positions(const uint8_t *position, int position_num,
|
|
AVChannelLayout *layout);
|
|
|
|
#endif /* AVFORMAT_MOV_CHAN_H */
|