MOV_CH_LAYOUT_MPEG_3_0_A  176 libavformat/mov_chan.c     { MOV_CH_LAYOUT_MPEG_3_0_A,         AV_CH_LAYOUT_SURROUND }, // L, R, C
MOV_CH_LAYOUT_MPEG_3_0_A  421 libavformat/mov_chan.c     MOV_CH_LAYOUT_MPEG_3_0_A,