[Mjpeg-users] writing multi threaded code

[Mark H. <mj...@si...>]

Hi Guys,

I'm wondering if anyone has some skeleton C code for writing  
multithreaded filters.

Similar to this kind of pseudo code;

while not end of file {

	read frame

	create threads (number of CPUs)

	for y = 1 to height {

		while no available threads  { wait for a thread to finish; }

		run in thread { for x = 1 to width { process pixel} }
	}
	write frame
}

I've written a temporal bilateral filter and an nl-means filter and  
they are slow, so was looking to speed things up on my multi cpu  
machines.

If not, I'll see if I can generate my own skeleton.

Thanks
Mark