00001 /* 00002 * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> 00003 * Copyright (c) 2008 Peter Ross 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 AVUTIL_AUDIOCONVERT_H 00023 #define AVUTIL_AUDIOCONVERT_H 00024 00025 #include <stdint.h> 00026 00041 #define AV_CH_FRONT_LEFT 0x00000001 00042 #define AV_CH_FRONT_RIGHT 0x00000002 00043 #define AV_CH_FRONT_CENTER 0x00000004 00044 #define AV_CH_LOW_FREQUENCY 0x00000008 00045 #define AV_CH_BACK_LEFT 0x00000010 00046 #define AV_CH_BACK_RIGHT 0x00000020 00047 #define AV_CH_FRONT_LEFT_OF_CENTER 0x00000040 00048 #define AV_CH_FRONT_RIGHT_OF_CENTER 0x00000080 00049 #define AV_CH_BACK_CENTER 0x00000100 00050 #define AV_CH_SIDE_LEFT 0x00000200 00051 #define AV_CH_SIDE_RIGHT 0x00000400 00052 #define AV_CH_TOP_CENTER 0x00000800 00053 #define AV_CH_TOP_FRONT_LEFT 0x00001000 00054 #define AV_CH_TOP_FRONT_CENTER 0x00002000 00055 #define AV_CH_TOP_FRONT_RIGHT 0x00004000 00056 #define AV_CH_TOP_BACK_LEFT 0x00008000 00057 #define AV_CH_TOP_BACK_CENTER 0x00010000 00058 #define AV_CH_TOP_BACK_RIGHT 0x00020000 00059 #define AV_CH_STEREO_LEFT 0x20000000 00060 #define AV_CH_STEREO_RIGHT 0x40000000 00061 #define AV_CH_WIDE_LEFT 0x0000000080000000ULL 00062 #define AV_CH_WIDE_RIGHT 0x0000000100000000ULL 00063 #define AV_CH_SURROUND_DIRECT_LEFT 0x0000000200000000ULL 00064 #define AV_CH_SURROUND_DIRECT_RIGHT 0x0000000400000000ULL 00065 00069 #define AV_CH_LAYOUT_NATIVE 0x8000000000000000ULL 00070 00076 #define AV_CH_LAYOUT_MONO (AV_CH_FRONT_CENTER) 00077 #define AV_CH_LAYOUT_STEREO (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT) 00078 #define AV_CH_LAYOUT_2POINT1 (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY) 00079 #define AV_CH_LAYOUT_2_1 (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER) 00080 #define AV_CH_LAYOUT_SURROUND (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER) 00081 #define AV_CH_LAYOUT_3POINT1 (AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY) 00082 #define AV_CH_LAYOUT_4POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER) 00083 #define AV_CH_LAYOUT_4POINT1 (AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY) 00084 #define AV_CH_LAYOUT_2_2 (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT) 00085 #define AV_CH_LAYOUT_QUAD (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) 00086 #define AV_CH_LAYOUT_5POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT) 00087 #define AV_CH_LAYOUT_5POINT1 (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY) 00088 #define AV_CH_LAYOUT_5POINT0_BACK (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) 00089 #define AV_CH_LAYOUT_5POINT1_BACK (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY) 00090 #define AV_CH_LAYOUT_6POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_CENTER) 00091 #define AV_CH_LAYOUT_6POINT0_FRONT (AV_CH_LAYOUT_2_2|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) 00092 #define AV_CH_LAYOUT_HEXAGONAL (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_BACK_CENTER) 00093 #define AV_CH_LAYOUT_6POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER) 00094 #define AV_CH_LAYOUT_6POINT1_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER) 00095 #define AV_CH_LAYOUT_6POINT1_FRONT (AV_CH_LAYOUT_6POINT0_FRONT|AV_CH_LOW_FREQUENCY) 00096 #define AV_CH_LAYOUT_7POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) 00097 #define AV_CH_LAYOUT_7POINT0_FRONT (AV_CH_LAYOUT_5POINT0|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) 00098 #define AV_CH_LAYOUT_7POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) 00099 #define AV_CH_LAYOUT_7POINT1_WIDE (AV_CH_LAYOUT_5POINT1|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) 00100 #define AV_CH_LAYOUT_OCTAGONAL (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_CENTER|AV_CH_BACK_RIGHT) 00101 #define AV_CH_LAYOUT_STEREO_DOWNMIX (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT) 00102 00122 uint64_t av_get_channel_layout(const char *name); 00123 00131 void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout); 00132 00136 int av_get_channel_layout_nb_channels(uint64_t channel_layout); 00137 00141 int64_t av_get_default_channel_layout(int nb_channels); 00142 00147 #endif /* AVUTIL_AUDIOCONVERT_H */