capture speed improvement

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Hi 

I am developing a capture and video multicast. I have
used the VIDIOCMCAPTURE and  VIDIOCSYNC ioctls to read
1 frame from the grabber (struct video_mmap.frame = 0)

I could accomplish this but the maximum frame rate is 15.
I would like to know how I can improve the video frame rate.
I need a higher frame rate and the CPU usage is very low.

What about using the read syscall ? Is it faster than mmap 
method ? Is threre a faster method ? Do I have a DMA access
time limit ?

I am using the PixelView Play TV Pro and running under
a Pentium 300Mhz equivalent machine and linux RH7.1
kernel 2.4.7.

Thanks a lot,

André Luiz R. Moutinho
Computer Engineer, COMPSIS - Computadores e Sistemas Ind. e Com. Ltda
moutinho@xxxxxxxxxxxxxxxxx, moutinho@xxxxxxxxxx
Voice: +55 12 394-13966	Fax: +55 12 322-0888









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