Nemosoft Unv. wrote:
> Hi,
>
> > Maybe it wasn't your point, but it was mine. With the timestamps the
> > application can easily decide which frames should be dropped to keep
> > audio and video in sync.
>
> Oh, in that respect you are right. But that is assuming you grab every
> frame that comes along;
Yes.
> but I was talking about what happens if the buffers
> still get full;
Then your box is to slow for video capture. Specifying the frame rate
you want capture might help in this case[1]. For bttv this would'nt
make a big difference, but with USB hardware which might have to
post-process video data (uncompress due to the limited bus bandwidth)
this should help a bit as you avoid processing data which will be
dropped by the application anyway ...
> drop the last or the oldest frame?
Whichever is less work for the driver, i.e. probably drop the last one.
Gerd
[1] Hmm, no v4l2 ioctl for this yet. Add one?
--
Gerd Knorr <[EMAIL PROTECTED]> -- SuSE Labs, Au�enstelle Berlin
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