AAC_CHANNEL_CC    132 libavcodec/aacdec.c                (pos != AAC_CHANNEL_OFF && pos != AAC_CHANNEL_CC);
AAC_CHANNEL_CC    697 libavcodec/aacdec.c         case AAC_CHANNEL_CC:
AAC_CHANNEL_CC    767 libavcodec/aacdec.c     decode_channel_map(layout_map + tags, AAC_CHANNEL_CC,    gb, num_cc);