[mythtv-users] Interlaced pictures + spatial direct mode is not implemented

[Mark Buechler]

CoreAVC can indeed decode it.

- Mark.

On 12/14/07, Petr Stehlik <pstehlik at sophics.cz> wrote:
>
> Markus Schulz wrote:
> >> 2007-12-13 23:45:49.606 [h264 @ 0xb74331e8]Interlaced pictures +
> >> spatial direct mode is not implemented
> >> 2007-12-13 23:45:49.626 NVP: Waiting for prebuffer.. 2
> >> uLLLLAAAAAAAAAAAAAAAAAAAAAAAAAA
> >> ...
> >> 2007-12-13 23:45:51.485 NVP: Video is 3.40195 frames behind audio
> >> (too slow), dropping frame to catch up.
> >>
> >> Is it normal that the 4800+ can't handle the HDTV or is it caused by
> >> the "is not implemented" messages above? Or can I finetune something
> >> in my setup to get it replaying at 25 FPS?
> >
> > Yes you see the answer in your log. "Interlaced picture + spatial direct
> > mode is not implemented": all frames/slices (B-frames only iirc)
> > encoded with this method are skipped/dropped, only temporal direct mode
> > was supported (encoder decides to use temporal or spatial ones).
> > Therefore you can't get 25fps and a/v-sync goes off cause it expects 25
> > decoded frames.
>
> I see. The picture quality is excellent (actually best I've ever seen)
> and it plays for say 1-2 seconds but then it freezes for half of second,
> and then continues again.. It looks like a 6000+ CPU could replay it
> normally...
>
> > It's currently not possible to decode such h.264 videos with a FOSS
> > solution (or?). Don't know if someone from the ffmpeg team is working
> > at this topic.
>
> Looks like the CoreAVC myth trac entry might have been closed too early
> (supposing that CoreAVC can decode it)...
>
> Petr
>
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