[mythtv-users] Varying data formats during digital reception

Mark Greenwood fatgerman at gmail.com
Tue Nov 6 16:21:28 UTC 2012

On Tuesday 06 Nov 2012 08:09:25 Gary Buhrmaster wrote:
> On Tue, Nov 6, 2012 at 6:29 AM, Mark Greenwood <fatgerman at gmail.com> wrote:
> ...
> > I have 0.26 (on mythbuntu 12.04) and VDPAU. I tried a few things.
> >
> > Plays fine in mythtv (as a Movie, not sure if that matters)
> > Plays fine in mplayer when mplayer is set to use vdpau output
> > Set mplayer to use xv output and the video stops at the change of aspect but the audio carries on. The mplayer output gives you the problem:
> >
> > [h264 @ 0x7faa4c59e280]Width/height changing with threads is not implemented. Update your Libav version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
> > [h264 @ 0x7faa4c59e280]decode_slice_header error
> > [h264 @ 0x7faa4c59e280]no frame!
> Note that this has been reported against FFmpeg/Libav recently, so it
> is possible that a fix may eventually make it into the codes(*).  When
> it does, and the next FFmpeg merge happens, you should get a fix.
> Until then, you are probably out of luck if using the software
> decoder.  I suppose you could try running without multiple threads
> to see if it works.

I did try setting the number of threads (using the smplayer GUI) to 1 but it made no difference. I have always had my doubts as to whether that option actually does anything.


> Gary
> (*) I expect that some rework of the codes is needed to synchronize
> the change(s) across the threads working on the stream.  If it would
> have been easy, I would expect it would already be in there.
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