Color space conversion CPU utilization

[asp]

Sebastian, thanks for the response!

The pipelines above are just to illustrate the situation -- in the actual
pipeline there's a filter which only supports RGBA/BGRA. So, the conversion
taking place is from YUV420P to BGRA and back.

Coming from ffmpeg-backed implementation, this conversion was not,
obviously, free -- but wasn't as expensive either. Unfortunately I don't
have 0.10 built with x264enc handy to compare, but I'd imagine
ffmpegcolorspace would be close(r) to what we used to have. I may end up
trying to build it as an external filter for 1.0 and see how it compares.

Again, thanks for your thoughts, and let me know if you have any other
ideas.




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