AC3_CHMAP_C       255 libavcodec/ac3tab.c                   AC3_CHMAP_C,
AC3_CHMAP_C       257 libavcodec/ac3tab.c     AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R,
AC3_CHMAP_C       259 libavcodec/ac3tab.c     AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R |                   AC3_CHMAP_C_SUR,
AC3_CHMAP_C       261 libavcodec/ac3tab.c     AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R | AC3_CHMAP_L_SUR |                  AC3_CHMAP_R_SUR