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-   -   Jerky playback in xine with subtitles enabled (http://www.nvnews.net/vbulletin/showthread.php?t=128007)

arz 02-11-09 05:41 AM

Jerky playback in xine with subtitles enabled
 
3 Attachment(s)
Video playback lags and jerks reproducibly when very large or huge subtitles
are enabled in xine. This also affects all applications that use xine such as totem and kaffeine.
Desktop effects, player frontend, codec or bitrate of the video do not affect this behaviour.

If the playback window is scaled to a small size the lags do not occur. The X server processor usage jumps up at the precise moment a subtitle is displayed.

I've verified that this problem only occurs with the nvidia driver. I've tested the 177.80, 180.11 and 180.29 releases.

I've disabled all sync to vblank options and also added Option "UseEvents" "true" to my xorg.conf, to no perceptible effect.

My configuration:
Kubuntu 8.10 + KDE 4.2
libxine-1.1.15-0ubuntu3.1
xserver-xorg-1:7.4~5ubuntu3
GeForce 9800GT with proprietary nvidia driver version 180.29 (also tested 177.80, 180.11)
Window size: 2048x1152

Xine bug: http://bugs.xine-project.org/show_bug.cgi?id=206
Ubuntu bug: https://bugs.launchpad.net/ubuntu/+s...ib/+bug/158190

Please note that I had to split the dmesg output from the nvidia-bug-report.log because the file was above the boards max. size.

Linux_Fan 03-07-09 04:46 AM

Re: Jerky playback in xine with subtitles enabled
 
I can confirm that on my Arch Linux (Core Dump) 64-bit machine. Below are the details.

Code:

kernel26 2.6.28.7-1
xine-lib 1.1.16.2-1
kaffeine 0.8.7-1
xorg-server 1.5.3-4
nvidia-beta 180.35-1
KDEmod 3.5.10
GeForce 8600M GT

Strangely enough this bug doesn't seem to affect mkv files, like it does avi and mp4.

P.Kosunen 03-07-09 07:52 AM

Re: Jerky playback in xine with subtitles enabled
 
Quote:

Originally Posted by arz (Post 1929108)
I've tested the 177.80, 180.11 and 180.29 releases.

16x.x doesn't have this problem (but picture freezes sometimes).

Linux_Fan 03-07-09 03:58 PM

Re: Jerky playback in xine with subtitles enabled
 
Seems I was wrong...this bug does also affect mkv files, but not as much as the other two mentioned above, I guess.

marchetto 04-21-09 06:11 PM

Re: Jerky playback in xine with subtitles enabled
 
Even here, some problem with kaffeine in full screen. Jerky. Compiz is enabled.


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