Bug 206314 - Amarok 2 and mplayerthumbs have skipping audio (out of sync with video)
Summary: Amarok 2 and mplayerthumbs have skipping audio (out of sync with video)
Status: RESOLVED FIXED
Alias: None
Product: Phonon
Classification: Frameworks and Libraries
Component: Xine backend (show other bugs)
Version: 4.3.0 (KDE 4.2.0)
Platform: Debian testing Linux
: NOR normal
Target Milestone: ---
Assignee: Matthias Kretz
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-09-05 02:34 UTC by Sladjan
Modified: 2010-12-05 21:42 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In: 4.4.2


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Description Sladjan 2009-09-05 02:34:29 UTC
Version:           4:4.3.1-4 (using KDE 4.3.0)
Compiler:          cc 
OS:                Linux
Installed from:    Debian testing/unstable Packages

Hi,

I have Pulseaudio 0.9.16-test installed and I get too fast/skipping audio (it skips short parts of the audio so the resulting playback seems faster, pitch is the same). Video files show correct video but audio is out of sync and too fast/skipping too.

In Systemsettings/Multimedia I have set Pulseaudio as the preferred output.

I tried Amarok 2 mplayerthumbs and the test-buttons in Systemsettings/Multimedia. KPlayer, which uses Mplayer ESD or ALSA output is fine though. Also I setup notifications to use an external player (Mplayer) which works fine too.

Best regards,
Sladi
Comment 1 Myriam Schweingruber 2009-11-17 13:08:24 UTC
Nobody can reproduce this in the Amarok team. Could this be a Pulseaudio problem? There is a report about stuttering sound with Pulseaudio: bug 195938, might be related.
Comment 2 Sladjan 2009-11-17 13:37:04 UTC
Hi,
yes this bug 195938 is probably the same issue. I have a rather complex PA setup consisting of many LADSPA effect sinks. When I increase the scheduler and priority of the PA daemon, the problem rarely occurs anymore.
Comment 3 Myriam Schweingruber 2010-04-06 13:29:05 UTC
Is this still valid with KDE SC 4.4.2/Phonon 4.4.0?
Comment 4 Sladjan 2010-04-06 15:19:46 UTC
(In reply to comment #3)
> Is this still valid with KDE SC 4.4.2/Phonon 4.4.0?

Hi! Unfortunately I only have a virtual machine to test with (so I can't really test multimedia).
I used the Xine backend when I filed this bug (Gstreamer didn't work).
Comment 5 Myriam Schweingruber 2010-04-09 09:09:47 UTC
Can somebody else test this, please?
Comment 6 Colin Guthrie 2010-04-09 09:52:56 UTC
While I'm not sure how to test with that particular setup, the Xine Engine does have particularly poor PA support while the GStreamer one has very good support.

We use GStreamer by default in Mandriva (we have never preferred the Xine one) and it usually performs well for us.
Comment 7 Myriam Schweingruber 2010-04-22 08:58:11 UTC
Currently I use Pulseaudio with the vlc-backend and can't reproduce this, using Kubutnu 10.04 RC. Since the VLC backend is likely going to replace the Xine one, consider this solved.
Comment 8 Sladjan 2010-04-22 09:10:14 UTC
Nice, I couldn't test the VLC backend, I think it wasn't packaged.