Arch Linux

CTAG

Member

Registered: 2013-10-14

Posts: 82

HEVC playback stutters with artifacts on VLC

Hi,

I have some 4K footage in H.265 recorded at 60fps, and when I try to play it back on VLC the footage stutters and has artifacts. The system is quite new, with a 4K monitor, so I don't believe the lag is because of any hardware bottleneck.

Example of artifacts: https://imgur.com/a/rP6dtMD

lspci:

00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)

I've heard about va-api, but I'm not sure how to make sure it's being used, or even if that's the right direction to go. I've tried setting VA-API under "Hardware accelerated decoding" in VLC's preferences and restarting the program, but the issue persists.

CTAG

Member

Registered: 2013-10-14

Posts: 82

Re: HEVC playback stutters with artifacts on VLC

If I run

mpv --hwdev=vaapi file.mp4

the file plays properly.

Last edited by CTAG (2018-10-27 22:54:28)

CTAG

Member

Registered: 2013-10-14

Posts: 82

Re: HEVC playback stutters with artifacts on VLC

It appears the issue is framerate related, not necessarily video format. When playing back at 30fps in VLC, the footage displays properly. But 60fps still works in mpv.. I'm holding out hope there's still a way to properly configure VLC.