Avisynth+ r2455-MT
Avisynth+ r2455-MT (20170316)
Changes since r2440
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Fix: IsY() script function returned IsY8() (VideoInfo::IsY was not affected)
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New: ConvertBits, dither=1 (Floyd-Steinberg): allow any dither_bits value between 0 and 8 (0=b/w)
Changes since r2420
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Fix Merge for float formats
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Fix error text formatting under wine (_vsnprintf_l issue)
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Fix Regression: YUY2 UToY copied V instead of U, since August, 2016 (v2150)
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faster Merge: float to sse2 (both weighted and average)
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faster ordered dither to 8bit: SSE2 (10x speed)
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ColorBars allows any 4:2:0, 4:4:4 formats, RGB64 and all planar RGB formats
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ColorBarsHD accepts any 4:4:4 formats
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Dithering: Floyd-Steinberg
Use convertBits parameter dither=1: Floyd-Steinberg (was: dither=0 for ordered dither) -
Dithering: parameter "dither_bits"
For dithering to lower bit depths than the target clip format
Usage: ConvertBits(x, dither=n [, dither_bits=y])- ordered dither: dither_bits 2, 4, 6, ... but maximum difference between target bitdepth and dither_bits is 8
- Floyd-Steinberg: dither_bits 1, 2, 4, 6, ... up to target bitdepth - 2
(Avisynth+ low bitdepth, Windows 3.1 16 bit feeling I was astonished that dither_bits=6 still resulted in a quite usable image)
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Dithering is allowed from 10-16 -> 10-16 bits (was: only 8 bit targets)
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Dithering is allowed while keeping original bit-depth. clip10 = clip10.ConvertBits(10, dither=0, dither_bits=8)
(you still cannot dither from 8 or 32 bit source) -
ConditionalFilter syntax extension like Gavino's GConditional: no "=" "true" needed
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Revert: don't give error for interlaced=true for non 4:2:0 sources (compatibility, YATTA)
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CombinePlanes: silently autoconvert packed RGB/YUY2 inputs to planar
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ConvertBits: show error message on YV411 conversion attempt: 8 bit only
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ConvertBits: Don't give error message if dither=-1 (no dithering) is given for currently non-ditherable target formats
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Script function: IsVideoFloat. returns True if clip format is 32 bit float. For convenience, same as BitsPerComponent()==32
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ConvertToDoubleWidth and ConvertFromDoubleWidth: RGB24<->RGB48, RGB32<->RGB64
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New MT mode: MT_SPECIAL_MT. Specify it for MP_Pipeline like filters, even if no Prefetch is used (MP_Pipeline issue, 2 fps instead of 20)
For general Avisynth+ info visit:
http://avisynth.nl/index.php/AviSynth%2B
Forum:
https://forum.doom9.org/showthread.php?t=168856