Re: [Linux-uvc-devel] frame rate of acquisition

[Luc S. <lu...@sa...>]

On Thu, Jan 05, 2006 at 03:42:06PM +0100, Olivier Bornet wrote:
> Hello,
> 
> what is the frame rate you have with the UVC driver ? I have only about
> 7 fps with either the test program or OpenCV and UVC driver. Can I
> change this ? For example, with pwc, we can switch the fps when loading
> the kernel module.

Or using the private field when setting the format ...

struct v4l2_format *f = arg;
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;

Perhaps we can do the same ? I've haven't look how other webcam can do this.
v4l2 can return the frame rate but we need to use one of the default standart
(secam, pal, ...)

Luc