totem/gstreamer/ffmpeg issues

[Dominik 'Rathann' Mierzejewski]

On Wednesday, 05 November 2008 at 03:24, Ralf Corsepius wrote:
> On Tue, 2008-11-04 at 21:04 +0100, Hans de Goede wrote:
> > Ralf Corsepius wrote:
> > > Hi,
> > > 
> > > I don't know what has changed (and whose fault it might be), but today's
> > > rpmfusion/rawhide update broke totem video play back badly for me 
> > > on an F10/rawhide + rpmfusion-free + rpmfusion-nonfree system.
> > > 
> > > E.g. I am observing 
> > > * selinux alerts related toten-video-thumbnailer and totem itself having
> > > selinux problems with libavformat
> > > * playback of many (all?) *.flv's and *.mp4's has stopped working (So
> > > far, I haven't found any file for which it works).
> > > ...
> > > 
> > > All I can say: rpmfusion things used to work when I tried last weekend,
> > > and now don't do so anymore.
> > > 
> > 
> > This is most likely caused by the new ffmpeg which has cpu specific 
> > optimalizations turned on for the first time, try manualy removing the version 
> > under /usr/lib[64]/sse2, that should make you fallback to the old no cpu 
> > specific optimalizations version.
> 
> The initial sealert is on sse2/libavcodec.so.51.71.0.
> 
> Manually removing /usr/lib/sse2/libavcodec.so.51.71.0 triggers a similar
> sealert on /usr/lib/sse2/libavutil.so.49.10.0
> 
> Removing both
> /usr/lib/sse2/libavcodec.so.51.71.0
> /usr/lib/sse2/libavutil.so.49.10.0
> brings totem back into business.

And costs up to 70% of performance.

[...]
> => The SELinux rules for these library need to be extended.

Feel free to add to my SELinux policy ticket I filed.

> > I'm not advocating this as a fix, merely suggesting doing this as a way to 
> > debug this.
> Well, my opinion on SELinux ... it causes more collateral damage than it
> helps ;)

+1

Regards,
R.

-- 
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"Faith manages."
        -- Delenn to Lennier in Babylon 5:"Confessions and Lamentations"