I’m unable to play 4k movies. I have previously been able to play these but have not tried in a while so can’t pinpoint the change in behaviour. I press play, the movie will stutter through a few frames and will then just freeze. What is odd is that if I play the same movie using the Plex addon it plays OK (although even then I get occasionally dumped back to the app and have to hit resume). For clarity the movie file and the Plex Media Server are on the same PC and the movie is direct playing (i.e. no transcoding is being performed).
I have uploaded a log file to http://paste.osmc.tv/evozabehiv.
I decided to scroll through all the messages to see if anyone had problems with 4K playback (it’s not possible to search for 4K when that’s the name of the device). I came across one where you pointed out that his link speed was 100Mbps instead of 1Gbps so decided to check my log and sure enough I found this entry
Dec 03 23:55:26 osmc kernel: libphy: stmmac-0:00 - Link is Up - 100/Full
This morning I scrabled around in the back of the unit and changed the cable and it now works. I think I must have swapped the cable around at some point when moving things around. The other devices are 100Mbps so would have been OK.
Lesson - cables are important. Thanks for the help. Mark this solved.
This is actually a red herring and usually will be visible if a user pauses playback. We have to stop feeding data in to the buffer otherwise when you press Play you’ll need to wait a while for those frames to get dropped by the decoder and for the buffer to have space again.