Re: Low performance with FlyVideo98/bttv/v4l2

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On Wed, 28 Aug 2002, Stephen Crampton wrote:
> 
> I was getting around 4 fps with a Webcam 3 until I enabled compression
> through the driver.
> 
> I'm using ioctl(VIDIOCGMBUF) and mmap to implement shared memory and then
> ioctl(VIDIOCMCAPTURE) and ioctl(VIDIOCMSYNC) to read frames.  I use two
> frames in the following sequence:

Thanks for that, I managed to get it up to 8fps last night alternating
buffers but this will help a lot!
 
Brian





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