@dping
I have a 280x and opencl to nv12 works fine here with the 8-10 build
I also have the box for use custom settings checked and it seems to work
Just a quick idea for those with the Error about the encoder not able to be initialised. Make sure the Ref Frames is not more than 4 or 5 when custom settings are enabled. This seems to give that error.
nope just tried that rhole still not initializing the encoder ty for the idea though