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Old 21st July 2016, 08:43   #4005  |  Link
gamebox
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Join Date: Nov 2011
Posts: 66
@divxmaster: Thanks for sharing your experience with pre-sharpening. I've browsed the complete list of AviSynth sharpening plugins/scripts, and will test some to see the results on both sharpening and resulting bitrate (whether image complexity increases as well). For now, "adaptive" sharpening seems to me as the most appropriate direction to go. I've started using Lanczos4resize which improves sharpness (though it introduces halo as well, unlike Lanczos3). Also, decreased deblock from -1 to -2, and am currently testing -3 as image quality improved after I discarded qg size 16 parameter and artifacts stopped "accumulating" in smaller image blocks containing sharp, pronounced details where they were overly visible.

I compress using modified "slower" profile - me star, subme 7, rd 6, ref 6, bframes 9, aq-mode 2/strength 2, psy rd 2, psy rdoq 1, no rskip, rect, no sao, no strong intra smoothing. Speedup options are limit modes, limit refs 3, no weightb, no amp, max merge 2.
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