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Old 14th November 2019, 02:22   #4  |  Link
qyot27
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Join Date: Nov 2005
Location: Florida
Posts: 1,419
If it's not the bit depth, it may be because AviSynth+ processes YUV 4:2:2 as planar (YV16) internally, not as YUY2, and that could be screwing with something in the pipeline. The doc page on the Wiki says it uses one of RGB32, RGB24, or YUY2 (owing to the fact it's a 2.5 plugin, not a 2.6 plugin). So no planar YUV.

I wouldn't bother using QTSource unless it's a format libavcodec can't handle, but if you're deadset on it, try setting color=0 or color=1 to force RGB24 or RGB32 output rather than YUY2. Also, raw="v210" may or may not help.

Knowing that it's using 10bit, though, I absolutely would not use plugins that are restricted to 8bit output (like QTSource). Don't dither if you don't have to.
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