Re: Driver/Application support of V4L2 (was Re: Jpeg decompression)

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Hey John,

On Fri, 2003-02-28 at 17:19, PlasmaJohn wrote:
> We're at the point where we need to do things like change inputs and
> channels.  To that end, we've started coding up some ioctl support using the
> V4L/V4L2 ioctls.  This is low-hanging fruit.  Real integration will require a
> bit more effort, so that's deferred until the driver stabilizes a bit more.

I'd suggest to just use standard ioctl()s from the beginning on - that
makes life much easier.

> Is there a CONFIG_ directive for V4L2 so that we don't require people to
> patch their kernel until absolutely necessary?

Yes, HAVE_V4L2 (#ifdef HAVE_V4L2 ... #endif).

> Well, the current driver only emits an MPEG[2] stream.  I think I know how to
> get a non-compressed stream out of it, but that's not my current focus.  Not
> sure what use that would be to Xv or XawTV as I don't think either handle
> compressed streams.

Nope, this is mainly intended for overlay display.

Ronald

-- 
Ronald Bultje <rbultje@xxxxxxxxxxxxxxxxxxx>





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