View source for Average

{{FilterCat5|External_filters|Plugins|Plugins_x64|Adjustment_filters|Averaging}}
{{Filter3
| {{Author/tp7}}, {{Author/pinterf}}
| v0.94
|[http://github.com/pinterf/Average/releases/download/0.94/Average-v0.94.7z Average-v0.94.7z]
| Averaging 
| [http://opensource.org/licenses/MIT MIT] but binaries are [http://www.gnu.org/licenses/gpl-2.0.txt GPLv2]
|6=[http://forum.doom9.org/showthread.php?t=169832 Doom9 Thread]}}
<br>
== Description ==
A simple plugin that calculates a weighted frame-by-frame average from multiple clips. This is a modern rewrite of the [[Average#Average_for_AviSynth_2.5|old Average plugin]] but a bit faster, additional colorspace support, and some additional sanity checks.<br/>

*The usage is identical to the old Average plugin or RedAverage: <code>Average (clip1, weight1, clip2, weight2, clip3, weight3, ...)</code>
*Output pixel value is calculated as: <code>out[x] = clip1[x] * weight1 + clip2[x] * weight2 + clip3[x] * weight3...</code>
<br>
== Requirements ==
* [http://sourceforge.net/projects/avisynth2/ AviSynth 2.6.0] or greater
* [[AviSynth+#Downloads| AviSynth+ r2420]] or greater
* Supported color formats: [[Y8]], [[YV12]], [[YV16]], [[YV24]], [[YV411]]
** AviSynth+ additional colorspace support: 10-16 bit and float YUV(A)/Planar RGB(A), RGB48 and RGB64
<br>
* [http://www.microsoft.com/en-us/download/details.aspx?id=53840 Microsoft Visual C++ 2015 Redistributable Package Update 3 (x86 / x64)]
:<span style="color:red">***</span> <tt>vcredist_x86.exe</tt> is required for <tt>Average-x86</tt>
:<span style="color:red">***</span> <tt>vcredist_x64.exe</tt> is required for <tt>Average-x64</tt>
<br>

== [[Script variables|Syntax and Parameters]] ==
:{{Template:FuncDef|Average (clip, float, clip, float, clip, float ...)}}
<br>
::{{Par2| |clip| }}
:::Input clip 1 / 2 / 3 ...

::{{Par2| |float| }}
:::Weight 1 / 2 / 3 ...
<br>
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.
<br>

== Examples == 
TODO:
 [[AviSource]]("blah.avi")
<br>
== Changelog ==
 Version      Date            Changes<br>
 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 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 [http://github.com/tp7/Average/releases GitHub releases page].
<br>
== 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.
*[http://forum.doom9.org/showthread.php?t=100626 Doom9 Forum] - Average plug-in : weighted average of any number of clips (original thread by mg262)
*[http://forum.doom9.org/showthread.php?t=118430 Doom9 Forum] - mg262's plugins with source code.
===Download===
*[http://wilbertdijkhof.com/mg262/Average_v11.zip Average_v11.zip] | [http://web.archive.org/web/20141116214856/http://wilbertdijkhof.com/mg262/Average_v11.zip Mirror]
*[http://forum.doom9.org/attachment.php?attachmentid=8362&d=1209405643 average-codeblock.zip] | [http://forum.doom9.org/showpost.php?p=1129919&postcount=57 Doom9 Forum]
<br>
<br>
-----------------------------------------------
'''Back to [[External_filters#Averaging.2FLayering.2FMasking|External Filters]] &larr;'''