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There's no advantage when you likely have an i5 or more reasonable/powerful CPU already. If you wanted, you could enable DXVA copy-back in LAV Video decoder, but it won't necessarily be any better. Just different and probably slower when seeking. If you watch any 10-bit/Hi10P H.264 videos they will be decoded via CPU anyway.

I do not have a problem with movies
I just want to take advantage of my vga ati hd 7750
like Nividia with cuda

t1992, are you experiencing any video playback issues/problems?

I don't no, I am very bad in custom software
Should I use lav dxva2?

OK then, so what do you need OpenCL for there exactly?

I used PotPlayer before using CCCP and I found PotPlayer supports the opengl video renderer
I think nvidia has cuda ati also has OpengL

Where and why?

CCCP can not support opengl video renderer?
sorry, I used google translate

Thanks for the help!

Yes, they certainly can and not to mention that LAV Video decoder is somewhat more flexible than CoreAVC is at the moment. CoreAVC might still have some small advantages on older hardware for CPU decoding, but... I can't say as I haven't touched in a while.