[MPlayer-users] VDPAU stuttering when playing x264 encoded media

Uoti Urpala uoti.urpala at pp1.inet.fi
Wed May 5 20:27:34 CEST 2010

On Wed, 2010-05-05 at 19:15 +0100, Tom Evans wrote:
> On Wed, May 5, 2010 at 6:48 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> > Tom Evans <tevans.uk <at> googlemail.com> writes:
> >
> >> When using mplayer SVN to playback x264 encoded media using vdpau,
> >> video playback stutters unpredictably.
> >
> > If your screen's refresh rate is ~24Hz, it is unlikely that you get good results
> > with current svn (you could try -speed 0.98).
> >
> > If your screen's refresh rate is >30 Hz, I need more information.
> >
> > [...]
> >
> > Unrelated to your problem, but please note that the following configure options
> > do not what you expect:
> > --enable-libdca, --enable-speex, --enable-freetype, --enable-vdpau,
> > --enable-tv-v4l1, --enable-tv-v4l2, --enable-x264
> > (I guess all enable-options except menu, but x264 is especially evil)

> In what way do those options not do what I expect? Do they not enable
> dca, freetype, vdpau and v4l, and allow mencoder to encode to x264?

By default those features are automatically enabled if available. The
--enable switches override autodetection, _and_ also disable automatic
setting of any required compiler/linker flags. So for most features you
should let the automatic detection do its job.

> Can you clarify what speed has to do with this as well? With vo=xv,

I'm pretty sure he was thinking of another limitation of the svn vo
driver: it can't advance frames faster than display refresh rate.
However your problem description didn't match the expected symptoms and
he also missed that your log output already showed 50 Hz (so basically
he was on the wrong track and it's not relevant to any of the actual

More information about the MPlayer-users mailing list