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

Timo Rothenpieler timo at rothenpieler.org
Wed Sep 30 13:27:38 CEST 2015

>> ping once again
>> Hi
> Could you describe how to verify it, and how can I test it?
> Thanks
> Best regards

Using this sample: https://btbn.de/files/chromakey_sample.mp4

ffmpeg -f lavfi -i color=c=black:s=1280x720 -i chromakey_sample.mp4 -an
-c:v libx264 -preset veryfast -crf 18 -shortest -filter_complex
-map "[out]" -y output.mkv

The last parameter to the chromakey filter enables opencl acceleration.

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