CH_BACK_LEFT      379 libavcodec/avcodec.h #define CH_LAYOUT_QUAD              (CH_LAYOUT_STEREO|CH_BACK_LEFT|CH_BACK_RIGHT)
CH_BACK_LEFT      382 libavcodec/avcodec.h #define CH_LAYOUT_7POINT1           (CH_LAYOUT_5POINT1|CH_BACK_LEFT|CH_BACK_RIGHT)
CH_BACK_LEFT      384 libavcodec/avcodec.h                                           CH_BACK_LEFT|CH_BACK_RIGHT|\
CH_BACK_LEFT       84 libavcodec/dca.c     CH_LAYOUT_STEREO|CH_BACK_LEFT|CH_BACK_RIGHT|CH_FRONT_CENTER|CH_BACK_CENTER,                                   ///< 6, C + L + R+ LR + RR + OV
CH_BACK_LEFT       85 libavcodec/dca.c     CH_FRONT_CENTER|CH_FRONT_RIGHT_OF_CENTER|CH_FRONT_LEFT_OF_CENTER|CH_BACK_CENTER|CH_BACK_LEFT|CH_BACK_RIGHT,   ///< 6, CF+ CR+LF+ RF+LR + RR
CH_BACK_LEFT       87 libavcodec/dca.c     CH_FRONT_LEFT_OF_CENTER|CH_FRONT_RIGHT_OF_CENTER|CH_LAYOUT_STEREO|CH_SIDE_LEFT|CH_SIDE_RIGHT|CH_BACK_LEFT|CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2+ SR1 + SR2