Stuttering when direct playing HEVC

[vitalessandro]

Hi,

I'm running into some problems when direct playing certain files. The issue happens on the web player in Chrome and Edge, when trying to direct play certain HEVC SDR files in the mp4 container. Some files work fine, others don't. I've attached the server log from one such instance in the following pastebin: https://pastebin.com/MKwxFiqC

Anybody experience a similar thing? I'm clueless as to what might be the cause. When transcoding, everything works just fine...

[tmsrxzar]

when it's using direct play it is only the client to blame when it won't work; outside of bandwidth the server is doing very little

what client are you using?

[vitalessandro]

Oh, that makes sense! I have the issue in Chrome v119, as well as Edge, both on macOS. I thought I had enabled a specific flag in Chrome for it to support HEVC, but didn't find it now. Everything seems to be set to default.

It's weird this happens with certain files, and others not. Am I the only one experiencing this with Chrome?

[tmsrxzar]

chrome 119 does not work for HEVC hardware accelerated for me on Debian Bookworm, just high CPU usage (which means it's using software decoding)
i am not sure it does hardware accelerated HEVC on anything

[vitalessandro]

For anybody else coming across this issue:

https://github.com/jellyfin/jellyfin/issues/12527

Provides context and explanation.