Matthias Weingart writes:
> > These will be fixed in the next version.
> > Some channels really seem to have a big offset between audio and
> > video and if the video buffer is too small, the audio for the video
> > data at the buffer exit sometimes has not arrived yet -> audio underflow.
> > This works fine during normal TV watching since the
> > hardware/firmware ROM can use the overflow buffer in DRAM.
> > During playback I cannot (don't know how to) do this and thus need
> > more of the original video buffer space.
> >
> > This will probably be bad for VDR because there is now about 30KB less
> > OSD memory and I don't know yet if I need more.
> > I checked for audio buffer underflows in a longer recording of ZDF
> > during this "music awards thing" (lots of motion and sound) and
> > adjusted the buffer until the dropouts went away. If they still occur
> > I will have to reclaim more memory.
>
> A remuxing of the recorded stream (to have small audio/video delay)
> should solve the problem too? I think the problem should be cured with
> remuxing instead making the OSD unusable :-/
Yes, remuxing should solve this too but it puts a heavy load on the
application in favour of a little OSD.
(On the other hand, why didn't Technotrend/Hauppauge add some
OSD memory on the new card design?)
Ralph
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