Audio choppy in mpv

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Hello,

Requirements:

I have Searched the forum for my issue and found nothing related or helpful
I have checked the Resources category (Resources Index)
I have reviewed the Wiki for relevant information
I have read the the Release Notes and Errata

OpenMandriva Lx version:

OpenMandriva Lx 25.04 (ROME) Rolling

Desktop environment (KDE, LXQT…):

KDE Plasma 6.3.4 (Wayland)

Description of the issue (screenshots if relevant):

Since after the upgrades of various PipeWire libraries to v1.4.3 a few days ago, certain media streams in any libmpv frontend are playing slowly with choppy sound. If there is video, playback is slowed.. It is not sporadic like CPU overload, but consistent.

It happens to all videos I have, opus files, and some mp3 files. I can’t tell if it is decoder related, or maybe libplacebo.

The affected media files play fine in VLC media player.

Relevant informations (hardware involved, software version, logs or output…):

I don’t see anything strange in the mpv verbose log while playing.

Nothing to show here so far, I was hoping others had seen this.

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@joelhans
welcome1

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Welcome! We are happy to see you and hope you will find this to be your new home.

It appears that a lot of people are having this issue and it’s not just OpenMandriva. Brody even did a video about it.

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Hello and thank you all for the welcome. It is a shame Linux audio has to be this way. I’ve actually found Pipewire to be an improvement overall.

I found a workaround just now:

mpv --ao=pipewire    # default if available, causes stuttering with latest version
mpv --ao=alsa           # no stutter
mpv --ao=pulse         # no stutter

So it looks like using Pipewire directly is unstable. I will alter my config to compensate.

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I don’t think it has to be this way. It just happens to be that way right now. Hopefully, they get it sorted out quickly.

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Looks like this regression has been fixed in PipeWire 1.4.4.

The issue affects any audio stream that was not 44.1kHz, which explains why all video files was affected.

It actually looks like it’s technically mpv’s problem, but was fixed in PW anyway.

  • Fix mpv buffer negotiation regression.

I have not looked into OpenMandriva’s bug reporting system, but is it possible to speedily upgrade PipeWire?

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We do so by calling @bero to take a look at the situation.

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Yes, it was regression in PW 1.4.3. Was fixed in 1.4.4.

Yes, 1.4.4 was available in Cooker for the past few days. Today the update was released for Lx 6.0 and ROME.
Check for updates.

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