AV_CH_LAYOUT_STEREO   87 3rdparty/include/ffmpeg_/libavutil/channel_layout.h #define AV_CH_LAYOUT_2POINT1           (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY)
AV_CH_LAYOUT_STEREO   88 3rdparty/include/ffmpeg_/libavutil/channel_layout.h #define AV_CH_LAYOUT_2_1               (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER)
AV_CH_LAYOUT_STEREO   89 3rdparty/include/ffmpeg_/libavutil/channel_layout.h #define AV_CH_LAYOUT_SURROUND          (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER)
AV_CH_LAYOUT_STEREO   93 3rdparty/include/ffmpeg_/libavutil/channel_layout.h #define AV_CH_LAYOUT_2_2               (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
AV_CH_LAYOUT_STEREO   94 3rdparty/include/ffmpeg_/libavutil/channel_layout.h #define AV_CH_LAYOUT_QUAD              (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)