video-converter: Consider fast-paths for some 10-bit formats
One of the more popular 10-bit format is
I420_10LE, unfortunately VAAPI cannot do 10-bit AVC decoding. Right now video-converter is missing 10-bit and higher fast-paths. It would be nice if it could do fast-path for e.g.
P010_10LE with bits only conversion for noticeable performance boost, as VAAPI cannot decode it and format
I420_10LE is not supported by GL sinks.