mp4 files not being harvested
mp4 files are not being discovered and added to the db. Rygel has no problem noticing and harvesting other formats like AVI, MKV, webm, wmv, etc.
I would call this a relatively serious bug because there are a lot of persnickety proprietary clients and widespread problems with DLNA non-compliance (on the part of clients). E.g. Roku media players can only handle h264-encoded mp4 files. Vizio smart TVs are only tested and expected to work on h264-encoded mp4 files. These limitations make it extra important for the server side to be generous in formats on offer.