Re: -[CALayer setContents: cvPixelBufferRef ] ?
Re: -[CALayer setContents: cvPixelBufferRef ] ?
- Subject: Re: -[CALayer setContents: cvPixelBufferRef ] ?
- From: "Jonathan del Strother" <email@hidden>
- Date: Thu, 3 Apr 2008 21:00:45 +0100
On Thu, Apr 3, 2008 at 8:38 PM, David Duncan <email@hidden> wrote:
> On Apr 3, 2008, at 12:28 PM, Jonathan del Strother wrote:
>
> >
> > > If you have a CVPixelBufferRef, you can use the various functions
> defined
> > > for a CVPixelBuffer to access the base address, row bytes, width, height
> and
> > > other attributes to create a CGImageRef directly from it via
> > > CGImageCreate().
> > >
> >
> > Even for yuv? I thought CGImageCreate only handled variations on
> > rgba, but will give it another go...
> >
>
>
> Your right, I forgot that detail :). I'm not familiar but Quicktime might
> be able to convert it for you before you get it (which is likely the best
> thing in this case).
>
> But that brings up the question of what are you trying to do? :)
>
I'm using the QTCapture api to record from a camera, while displaying
a live preview (ideally with 0 lag) in Core Animation.
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