Bill Dirks wrote:
> Gerd Knorr wrote:
> > Doesn't work as there is hardware available which actually can do multiple
> > captures in parallel. You simply can't handle this without driver support.
>
> Would it make sense to register multiple minors per card?
IMHO not. I can't see how this makes writing drivers easier. It is just
different. With multiple minors you have one device context per minor
number, with multiple opens you have one device context per filehandle.
That's all. Using multiple minors does'nt solve any real problems.
Applications still might get -EBUSY if they try to capture because
ressources are exhaused. bt848 hardware can capture two streams at the
same time, but only if both video sizes are small enouth that it can
split up even/odd fields and if both are recorded from the same source.
Another device mentioned here on the list a few months ago can do
multiple captures from multiple sources in parallel, but has a DMA
bandwith limit.
Gerd
--
Protecting the children is a good way to get a lot of adults who cant
stand up for themselves. -- seen in some sig on /.
_______________________________________________
Video4linux-list mailing list
[EMAIL PROTECTED]
https://listman.redhat.com/mailman/listinfo/video4linux-list
