AV_CH_LAYOUT_5POINT1  102 3rdparty/include/ffmpeg_/libavutil/channel_layout.h #define AV_CH_LAYOUT_6POINT1           (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER)
AV_CH_LAYOUT_5POINT1  107 3rdparty/include/ffmpeg_/libavutil/channel_layout.h #define AV_CH_LAYOUT_7POINT1           (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
AV_CH_LAYOUT_5POINT1  108 3rdparty/include/ffmpeg_/libavutil/channel_layout.h #define AV_CH_LAYOUT_7POINT1_WIDE      (AV_CH_LAYOUT_5POINT1|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)