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VapourSynth is an application for video manipulation. Or a plugin. Or a library. Itís 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
Windows
Version:r31
Released:
Size:6MB
Portable version
Old versions available
Version history available



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  Latest version:
r31 (February 03, 2016)



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Download VapourSynth r31 (direct link)

Download VapourSynth r31 64-bit (direct link)



More download options:
Download VapourSynth r31 portable (direct link)

Download VapourSynth r31 portable 64-bit (direct link)



Download old versions:
Download VapourSynth old versions



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Supported operating systems:
Windows




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Version history / Release notes / Changelog:
R31 Ė Boring Maintenance
Posted on February 3, 2016

All code is bug free until someone else tries to run it. Itís a scientific fact!

This release fixes all known resizer issues that have been discovered so far. Fortunately none of them led to image corruption, just incorrect rejection of certain conversions.

And it canít be a release without warning about something thatís slightly changed in some way. So here comes the warning. The installer now writes the registry keys related to the 64bit version into HKLM64 which makes more sense. All the old entries will also be kept until everyone has switched to the new ones. This is in preparation of the day the 32bit VapourSynth windows version stops existing, which unfortunately wonít be anytime soon despite it being over 12 years since we got x64.

View full changelog



All features / Full description:
The main features compared to Avisynth are:

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


Sections/Browse similar tools:
Video Scripting



Alternative to VapourSynth:
Avisynth



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