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VapourSynth is an application for video manipulation. Or a plugin. Or a library. Its hard to tell because it has a core library written in C++ and a Python module to allow video scripts to be created. It came to be when I started thinking about alternative designs for Avisynth and most of it was written over a 3 month period. The software has been heavily inspired by Avisynth and aims to be a 21st century rewrite, taking advantage of the advancements computers have made since the late 90s. Requires Python!

Free software
OS:Windows
Version:r36
Released:Jan 23, 2017
File size:8.4MB
5/10
1 votes




VapourSynth screenshot
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Latest version

r36 (January 23, 2017)




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Download VapourSynth r36  [8.4MB]  [Win]

Download VapourSynth r36 64-bit  [8.4MB]  [Win64]




Download portable and other versions

Download VapourSynth r36 portable  [2.5MB]  [Win]  [Portable]

Download VapourSynth r36 portable 64-bit  [2.8MB]  [Win64]  [Portable]




Download old versions


Download VapourSynth old versions




Supported operating systems

WinWindows




License

Free software




Version history / Release notes / Changelog


r36:
updated zimg library
packed format output now has alpha set instead of being zeroed
added asynchronous getframe support to python (stuxcrystal)
fixed several mac compilation issues
frame.props can now also behave like a proper python dict (stuxcrystal)
added morpho filter to windows installer
fixed planestats bug that could sometimes affect non-mod8 calculation
added leak warning for functions
added __signature__ attribute to python function objects (stuxcrystal)
in python function objects now have name, signature and plugin attributes, plugin objects now have a namespace attribute corresponding to the namespace
added misc filters to included vapoursynth plugins
fixed several edge cases when specifying color values for blankclip and addborders, inf and nan are now always rejected and floating point values can be any finite value
vspipe will now properly report floating point formats in y4m instead of incorrectly making them look like integer, for example C420ps and C420ph will be used to mark single and half precision respectively
avfs will now reject scripts that don't have an avs or vpy extension to avoid pointless error mounts
fixed blankclip handling of color for compat formats
added sample type to vspipe info output
improved a few installer error messages when python can't be found
now uses python 3.6 in windows
fixed potential crash when two clips are added together (Kamekameha)

View full changelog




All features


The main features compared to Avisynth are:

Multithreaded Frame level multithreading
Generalized Colorspaces New Colorspaces can be specified at runtime
Per Frame Properties Additional metadata can be attached to frames
Python Based The scripting part is implemented as a Python module so you dont have have to learn a special language
Support for video with format changes Some video just cant stick to one format or frame size VapourSynth can handle any kind of change




Sections/Browse similar tools






Alternative to VapourSynth


Avisynth







Guides and How to's


Download VapourSynth portable download



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Our hosted tools are virus and malware scanned with several antivirus programs using www.virustotal.com.


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