Video playback is garbled / choppy / stuttering with ALSA audio output

Bug #1639479 reported by Forest on 2016-11-05
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
VLC media player
Unknown
Unknown
vlc (Debian)
Confirmed
Unknown
vlc (Ubuntu)
Undecided
Unassigned

Bug Description

VLC 2.x fails to play many videos smoothly when ALSA audio output is selected. Every 10-30 seconds, the picture gets badly garbled, as if there were packet loss in the video stream. I see the problem most often with high def content.

The problem has been identified upstream, and reportedly fixed in vlc 3.0, but they are dismissive of users wanting a fix for 2.x. Given that this bug exists in the current LTS release and we're likely to be stuck with vlc 2.x for years to come, this is kind of a problem.

I have a pair of patches that apply to both vlc 2.2.2 and vlc 2.2.4. I have been using them with no problems for the past couple of months. Anyone else who wants to test them is most welcome, of course. Patched builds are available for xenial on my PPA:
https://launchpad.net/~foresto/+archive/ubuntu/ubuntutweaks/

Forest (foresto) wrote :
Forest (foresto) wrote :
summary: - Video playback is choppy / stuttering with ALSA audio output
+ Video playback is garbled / choppy / stuttering with ALSA audio output

The attachment "patch 1/2" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

tags: added: patch
Changed in vlc (Debian):
status: Unknown → Confirmed
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