AV_CH_LAYOUT_7POINT1_WIDE_BACK  100 libavcodec/aacdectab.h     AV_CH_LAYOUT_7POINT1_WIDE_BACK,
AV_CH_LAYOUT_7POINT1_WIDE_BACK   43 libavcodec/alac_data.c     AV_CH_LAYOUT_7POINT1_WIDE_BACK,
AV_CH_LAYOUT_7POINT1_WIDE_BACK  400 libavcodec/libfdk-aacenc.c     AV_CH_LAYOUT_7POINT1_WIDE_BACK,
AV_CH_LAYOUT_7POINT1_WIDE_BACK  102 libavutil/channel_layout.c     { "7.1(wide)",   8,  AV_CH_LAYOUT_7POINT1_WIDE_BACK },