2024-03-10, 11:10 AM
Yeah I appreciate it's an old CPU and was not a superstar when it launched either. I have got 16GB of ram, upgraded from the standard 8GB. I'm very confident that neither of those things are the bottleneck though, as I said I used a 1 month free plex trial (promo code ASUSTOR-PLEX30 by the way). The hardware transcoding through Plex did work. A 61mbps 4k stream could be transcoded down to 720p @ 4mbps using 20% or so CPU, which is expected as the CPU should be able comfortably transcode 3-4 4k streams at once give it's an Intel chip with iGP quicksync etc. It's quite impressive how much the hardware acceleration allows these old cheap chips to punch upwards really.
Looking at Plex's less user helpful transcoding logs, it appears to have roughly the same parameters. I believe Plex uses their own version of ffmpeg like Jellyfin does. So I have to conclude this is either a bug in Jellyfin, or much more likely, misconfiguration in my own setup.
I was wrong about audio for sure as looking into it further, down mixing is apparently a bit more resource intensive. I wouldn't expect it to grind to a complete halt though. The fact that hardware decoding causes the transcoding rate to crater is also very odd.
To be honest it's not the end of the world if I can't this working as software encoding at 1080 and below for one stream works. I don't really want to watch a beautiful high quality 70mbps 4k HDR masterpiece transcoded down to 480p SDR using inflight wifi anyway :P I'm not a big fan of Plex either so I wouldn't want to purchase their service.
Looking at Plex's less user helpful transcoding logs, it appears to have roughly the same parameters. I believe Plex uses their own version of ffmpeg like Jellyfin does. So I have to conclude this is either a bug in Jellyfin, or much more likely, misconfiguration in my own setup.
I was wrong about audio for sure as looking into it further, down mixing is apparently a bit more resource intensive. I wouldn't expect it to grind to a complete halt though. The fact that hardware decoding causes the transcoding rate to crater is also very odd.
To be honest it's not the end of the world if I can't this working as software encoding at 1080 and below for one stream works. I don't really want to watch a beautiful high quality 70mbps 4k HDR masterpiece transcoded down to 480p SDR using inflight wifi anyway :P I'm not a big fan of Plex either so I wouldn't want to purchase their service.