+#[cfg(feature="demuxer_q")]
+ &q::QDemuxerCreator {},
+#[cfg(feature="demuxer_siff")]
+ &siff::SIFFDemuxerCreator {},
+#[cfg(feature="demuxer_smush")]
+ &smush::SmushDemuxerCreator {},
+#[cfg(feature="demuxer_smush")]
+ &smush::MCMPDemuxerCreator {},