[mythtv-users] Varying data formats during digital reception

Gary Buhrmaster gary.buhrmaster at gmail.com
Tue Nov 6 16:09:25 UTC 2012

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 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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