[FFmpeg-devel] [PATCH 3/3][RFC] avfilter/vf_chromakey: Add OpenCL acceleration

Timo Rothenpieler timo at rothenpieler.org
Wed Oct 14 08:31:05 CEST 2015

> Hi
> I have check the error, for some card, yes, just like what I said above,
> some cards does not support double type, so we must check the opencl
> extension: cl_khr_fp64 before the kernel compile. If the device support,
> we use GPU, else, we use CPU or use float type, Is it OK?
> Thanks
> Best regards

Of course, if there's a way to only fall back to floats if doubles are 
not available, that'd be preferable.

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