I’m trying to stream videos from a Jellyfin server using QtMultimedia. Is there a nice way to list supported container formats with their supported codecs? Somewhere in the process of obtaining a video stream, the server wants to know a list of supported media codecs and streaming formats, so it knows when it needs to transcode and when it can avoid it.
I could hardcode them, but I’d rather discover them in some sort of way. Who knows if SailfishOS is going to blow up and support a very wide range of devices 
. I can’t test all the configuration on all Sailfish OS devices that are available right now.
I don’t want to maintain a huge list of tests with hardcoded exceptions either if there is an other way. That would cost a lot of time.
I’ve looked into using QMediaPlayer::hasSupport(), but that only checks if the given format is supported, it doesn’t enumerate anything. So I’d have to manually compile a list with known mime types and codecs.
I heard QtMultimedia uses gstreamer as its backend, but since linking to gstreamer is not allowed in the Harbour, it’s not really an option. I’m not even sure if gstreamer is able to enumerate its supported codecs, but I thought I’d list it here for completeness sake.
Does someone know of a better way? Please let me know