Average

Revision as of 18:38, 25 June 2020

Description

A simple plugin that calculates a weighted frame-by-frame average from multiple clips. This is a modern rewrite of the old Average plugin but a bit faster, additional colorspace support, and some additional sanity checks.

• The usage is identical to the old Average plugin or RedAverage: Average (clip1, weight1, clip2, weight2, clip3, weight3, ...)
• Output pixel value is calculated as: out[x] = clip1[x] * weight1 + clip2[x] * weight2 + clip3[x] * weight3...

Requirements

• [x86]: AviSynth+ or AviSynth 2.6
• [x64]: AviSynth+
• Supported color formats: Y8, YV12, YV16, YV24, YV411
  • AviSynth+: All planar formats (8/10/12/14/16/32bit, Y/YUV/RGB with or without alpha) are supported, also RGB48 and RGB64.

• Microsoft Visual C++ 2019 Redistributable Package (x86 / x64)

*** vcredist_x86.exe is required for Average-x86

*** vcredist_x64.exe is required for Average-x64

Syntax and Parameters

Average (clip, float, clip, float, clip, float ...)

clip   =

Input clip 1 / 2 / 3 ...

float   =

Weight 1 / 2 / 3 ...

You can average as many clips as you want but there are a few limitations.

• Average requires an even number of arguments.
• All clips must have the same colorspace.
• All clips must have identical width and height.
• All clips must have the same or greater number of frames as the first input clip.
• Best performance when absolute values of all weights are smaller or equal to one.

Examples

TODO:

AviSource("blah.avi")

Changelog

Version      Date            Changes

v0.94        01/27/2017      - Fix: fix the fix: rounding of intermediate results was ok for two clips
                             - New: AVX for 10-16bit (+20-30%) and float (+50-60%) compared to v0.93
                             - AVX for 8 bit non-integer path (+20% gain), e.g. when one of the weights is over 1.0
v0.93        01/26/2017      - Mod by pinterf
                             - Fix: rounding of intermediate results in fast integer average of 8 bit clips
                             - Mod: faster results for two or three clips
                             - New: Support for AviSynth+ color spaces: 10-16 bit and float YUV(A)/Planar RGB(A), RGB48 and RGB64
                             - 10+ bits are calculated in float precision internally.
                             - New: auto register as MT_NICE_FILTER for AviSynth+
                             - New: add version resource
                             - Info: built with VS2015 Update 3, may require Visual Studio 2015 Redistributable update 3
v0.92        12/27/2014      - This release fixes a very important memory leak which made the plugin unusable for somewhat complex scripts.
v0.91        12/24/2014      - Double performance when absolute values of all weights are smaller or equal to one.
v0.90        12/21/2014      - Initial release. 

• For older downloads (and source code) see the GitHub releases page.

Average for AviSynth 2.5

This is the original Average plugin written by mg262. It works with AviSynth 2.5/2.6 but only supports the YV12 colorspace. Additional information in the following links.

• Doom9 Forum - Average plug-in : weighted average of any number of clips (original thread by mg262)
• Doom9 Forum - mg262's plugins with source code.

Download

• Average_v11.zip | Mirror
• average-codeblock.zip | Doom9 Forum

External Links

• GitHub - Source code repository (original)
• GitHub - Source code repository (update)

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