ff_flac_is_native_layout 241 libavformat/flacenc.c !ff_flac_is_native_layout(par->channel_layout)) { ff_flac_is_native_layout 32 libavformat/flacenc.h int ff_flac_is_native_layout(uint64_t channel_layout); ff_flac_is_native_layout 646 libavformat/matroskaenc.c !ff_flac_is_native_layout(par->channel_layout));