GstDiscoverer throws fatal warning on unknown codec
Current git master throws a "Missing plugins" error and doesn't attempt to print any of the rest of the information about the media file in question.
$ gst-discoverer-1.0 http://download.opencontent.netflix.com.s3.amazonaws.com/AV1/Chimera/Chimera-AV1-8bit-768x432-1160kbps.mp4
Analyzing http://download.opencontent.netflix.com.s3.amazonaws.com/AV1/Chimera/Chimera-AV1-8bit-768x432-1160kbps.mp4
Done discovering http://download.opencontent.netflix.com.s3.amazonaws.com/AV1/Chimera/Chimera-AV1-8bit-768x432-1160kbps.mp4
Missing plugins
The media file in question doesn't contain any audio streams, and a single video stream.