CH_WIDE_PAIR      918 libavfilter/avfiltergraph.c     { CH_FRONT_PAIR,      CH_WIDE_PAIR       },
CH_WIDE_PAIR      921 libavfilter/avfiltergraph.c     { CH_CENTER_PAIR,     CH_WIDE_PAIR       },
CH_WIDE_PAIR      923 libavfilter/avfiltergraph.c     { CH_WIDE_PAIR,       CH_FRONT_PAIR      },
CH_WIDE_PAIR      924 libavfilter/avfiltergraph.c     { CH_WIDE_PAIR,       CH_CENTER_PAIR     },
CH_WIDE_PAIR      925 libavfilter/avfiltergraph.c     { CH_WIDE_PAIR,       AV_CH_FRONT_CENTER },
CH_WIDE_PAIR      928 libavfilter/avfiltergraph.c     { AV_CH_FRONT_CENTER, CH_WIDE_PAIR       },