Thanks for the help.
Is there any plans to have a standard v4l2 call to handle framerate?
Because this way, since I'm using the fmt.pix.priv it is still very driver
(camera) dependent.
In the meantime I will use this option.
Thanks again.
Hugo Costelha
On Wednesday 02 November 2005 15:29, Luc Saillard wrote:
> On Wed, Nov 02, 2005 at 03:05:24PM +0000, Hugo Filipe Costelha De Castro
wrote:
> > Hi,
> >
> > Is it possible to set the framerate (with video size) using standard
v4l2
> > calls? Or do I need to use the VIDIOCSWIN from pwc?
> >
> > I'm using a Philips Toucam Pro 740. I have code working using
video4linux
> > and the pwc driver, but I was trying to migrate to v4l2, trying to use
> > specific pwc code as least as possible so I don't get too much
attached
> > to a specific camera(s).
>
> They are an undocumented feature in the pwc driver. You can set the fps
> using VIDIOCSWIN or VIDIOC_S_FMT ioctls.
>
> Take a look in the file pwc-v4l.c
>
---------------------------------------------------------------------------
>- Trace(TRACE_MODULE, "ioctl(VIDIOC_S_FMT)\n");
>
> compression = (f->fmt.pix.priv & PWC_QLT_MASK) >> PWC_QLT_SHIFT;
> snapshot = f->fmt.pix.priv & PWC_FPS_SNAPSHOT;
> fps = (f->fmt.pix.priv & PWC_FPS_FRMASK) >> PWC_FPS_SHIFT;
> if (fps == 0)
> fps = pdev->vframes;
> snapshot = f->fmt.pix.priv & PWC_FPS_SNAPSHOT;
>
---------------------------------------------------------------------------
>-
>
> Luc
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