Intel VAAPI howto with Leia v18 nightly based on Ubuntu 18.04 server
I've done more A/B screenshots of color movies... there is literally no perceptible difference between dithering ON or OFF. After doing a difference comparison of screenshots of the identical frame there is, however, an imperceptible difference: a scattering of pixels throughout the image that are all slightly changed in color. And by slight, I mean something like an invisible change from RGB 69-91-130 to 69-90-129. There's no rhyme or reason to the changes, however.

Here's a difference map of the Disney logo:

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RE: New Era: VAAPI with EGL interoperation - by Sunflux - 2015-09-29, 12:34
Live TV broken again? - by schamane - 2016-02-29, 19:56
Random crashes - by hal2100 - 2016-03-08, 22:03
Strange Behaviour - by MicTie - 2016-12-07, 10:46
Working lirc with mce remote - by fr1day - 2019-08-10, 17:36
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Intel VAAPI howto with Leia v18 nightly based on Ubuntu 18.04 server18