void ff_channel_layouts_ref(AVFilterChannelLayouts *f, AVFilterChannelLayouts **ref) { FORMATS_REF(f, ref); }
void ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref) { FORMATS_REF(f, ref); }
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref) { FORMATS_REF(f, ref, ff_formats_unref); }