ERROR_IF 764 libavcodec/aacenc.c ERROR_IF(i == 16 ERROR_IF 768 libavcodec/aacenc.c ERROR_IF(s->channels > AAC_MAX_CHANNELS, ERROR_IF 770 libavcodec/aacenc.c ERROR_IF(avctx->profile != FF_PROFILE_UNKNOWN && avctx->profile != FF_PROFILE_AAC_LOW,