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Description
Type
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AviSynth is a powerful tool for video post-production. It provides ways of editing and processing videos. AviSynth works as a frameserver, providing instant editing without the need for temporary files. AviSynth itself does not provide a graphical user interface (GUI), but instead relies on a script system that allows advanced non-linear editing. While this may at first seem tedious and unintuitive, it is remarkably powerful and is a very good way to manage projects in a precise, consistent, and reproducible manner. Make scripts with AvsPMod, it is a text editor for AviSynth.

Free software
OS:Windows
Version:2.6.0 / 2.6.1 Alpha
Released:May 17, 2016
File size:6.2MB
Old versions available
Version history available
8.1/10
23 votes




Avisynth screenshot
Click to enlarge screenshot
Latest version

2.6.0 / 2.6.1 Alpha (May 17, 2016)



Download sites


Visit developer's site

Download Avisynth 2.6.0  [Direct link 6.2MB]  [Win]



Download beta and other versions

Download Avisynth 2.6.1 Alpha  [Direct link 1.4MB]  [Win]



Download old versions

Download Avisynth old versions



Supported operating systems

WinWindows



More information and other downloads






Version history / Release notes / Changelog

Interim Avisynth 2.6.1 alpha release.
=====================================
This release is intended to be near feature identical to 2.6.0

There are currently 3 build versions, all should be bug identical.

These versions do not include the local help files so as to speed
the fast swapping between versions by over installing the required
version. The 2.6.0 local help is still current.

The alpha installers do not provide installation of runtime components.
The user must download the relevant packages from Microsoft and install
them.

All versions now ship with DevIL 1.7.8, which needs VC 2K5 runtimes.
DevIL.dll is now delay loaded, so Avisynth.dll can be used without
it, in which case ImageReader/Writer would support only ebmp mode.
AviSynth_20160517_VC6.exe
Uses the systems MSVCRT.dll only.
There is no longer any dependance on msvcp60.dll
Requires a processor supporting MMX instruction set.

AviSynth_20160517_VC2005Exp.exe
Needs the VC 2K5 runtimes.
Requires a processor supporting MMX instruction set.

AviSynth_20160517_VC2008Exp SSE2.exe
Needs the VC 2K8 runtimes.
Requires a processor supporting SSE2 instruction set.
Users encountering problems should compare the behaviour of each version
and also the official 2.6.0 version. Different behaviour between 2.6.0 and
2.6.1VC6 are likely to be coding errors. Different behaviour between the
VC6 and 2K5 or 2K8 version are probably caused be incompatibilities in the
development environments.

During development most incompatibilities have shown up in the error
reporting and the error handling. The VC 2015 Community build environment
version currently fails the acceptance tests and has been withdrawn from
this release.

As you make mistakes writing your Avisynth scripts please ensure the error
messages are appropriate and the line number and column counter are consistant.
Erroneous scripts that cause inconsistant error reporting gratefully accepted.
BRIEF CHANGE LOG
================

ENVIRONMENT CHANGES and UPDATES
Update to SoundTouch 1.9.0(Wilbert+IanB).
Update to DevIL 1.7.8
TCPDeliver update to zlib 1.2.8 and lzo-2.09.
TCPDeliver complete Klaus's last work for 2.6 API.
Updated 2.6.1 VC6 build scripts.
Initial 2.6.1 VC2005 build scripts.
DirectShowSource add BaseClasses project to Avisynth solution.
MSVC 2008 Express project and solution files.
Experiment with 2K8 SSE2 build.

CODE CHANGES
Add offset parameter to conditional functions(Wilbert).
Replace convert_a.asm for yuy2 to rgb.
Redo SEH exception handling code.
VirtualQuery/GetModuleFileName + Trap on Invoke(SEt).
Use LoadLibraryEx/LOAD_WITH_ALTERED_SEARCH_PATH for plugins.
Use GetVarDef() extensivly.
Handle exceptions from DevIL.dll now being delay loaded.
Explicitly catch stray std::bad_alloc and report.

BUGFIXES
Supereq gain arguments can only be int, enforce it.
Fix handle leak with "Exists"(SEt)
Fix VDub plugin race on cleanup
Fix TCPDeliver crash with bad hostnames.
Fix ShowSMPTE non-integer fps message not being thrown (raffriff42).
Fix avisynth_c plane=0. Default params are not allowed in plain C.
Fix MergeLuma allow any Planar test(Wilbert).
Remove redundant self class spec from definition(Wilbert).

ENHANCMENTS
Evaluate Invert arguments once in Constructor not every GetFrame, Doh!
Move matrix decision into Convert constructor, overcome exceed cacheline.

BUILD CHANGES
Remove msvcP*.dll dependances.
Add AsFloatF(), compiler sugar!
Move to /W4 compiler warnings.
isolate void BitBlt(...) & long GetGPUFlags() functions.
Add VDCall as __cdecl to VDub api calls
Add __cdecl declaration to all api calls(SEt).
Code cleanup(SEt).
Improve precompiled header usage.
Use #pragma comment to control link options.
Turn off RuntimeTypeInfo for the rest of the solution.
Patch BaseClasses to avoid ATL/MFC dependance.
Add build environment tags to various filenames and values.
Amend template AVS_BUILD strings.
Link with nothrownew.obj
Remove writable system32avisynth.dll dependency.
Dodge 2005-2015 compiler bug with nested try/catch
Fix missing advapi32.lib for debug builds.

View full changelog



Sections/Browse similar tools





Alternative to Avisynth


AviSynth+


VapourSynth





Guides and How to's


AVI to DVD MPEG (using CCE or TMPGenc encoders)

- Read

AVSEdit - AviSynth for the scripting impaired

- Read

Convert RealMedia to AVI / MKV

- Read

DJRumpy's SVCD to DVD MPEG Guide

- Read

doom9 DV to DVD guide

- Read

DVD to XviD Conversion using DVD2AVI,AviSynth,Virtualdub

- Read

How to convert RM/RMVB to AVI or MPEG1/2

- Read

How to create smooth 'slo-mo' video using free software

- Read

How to Encode Womble Mpeg Video Wizard projects with HCenc

- Read

How to frameserve (dvd2avi / VirtualDub / Avisynth / VFAPI)

- Read

How to make DVD motion menus

- Read

How to open MP4,MKV,WMV,RM,MOV with any editor,encoder

- Read

How to use AviSynth with the Convolution3D "video noise" filter including editing with VirtualDubMod

- Read

Newbie Guide for Converting AVI2MPEG2 Compliant DVD Using CCE

- Read

Remove an opaque logo using Xlogo in Avisynth

- Read

Using a frameserver between Premiere and TMPGEnc

- Read

Using avsFilmCutter's Script Editor

- Read

Using avsFilmCutter's Video Editor

- Read
View all guides with guide description here



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23 comments, Showing 1 to 5 comments

Another vote here for AvsPmod... it's a really useful tool to use with Avisynth scripts.

I not sure those folk who criticise Avisynth for its lack of GUI really get the point. AviSynth a collection of very powerful tools which have been written - for the most part - by technical people, who are not primarily concerned with the presentation of how to use those tools.
If you prefer to edit your video using a nice comprehensive GUI, there are plenty of alternatives out there...I don't think those involved with AviSynth development are really interested in that world though...



Aug 27, 2015 by pippas Version: 2.60 OS: Windows 7 Ease: 5/10 Functionality: 10/10 Value: 10/10 Overall: 10/10



@ post#21

AvsPmod is sort of a GUI to Avisynth



Aug 27, 2015 by videobruger Version: 2.6.0 OS: Vista Ease: 9/10 Functionality: 10/10 Value: 10/10 Overall: 10/10



I honestly don't know why would anyone make a script engine without a gui. Just imagine how awesome it would be to use this powerful tool with toolbars, and menus, and long list of options! You know, all those things other programs have! And instead one has to browse a craptonne of tutorials to get the simplest things right.

Not liking it, but maybe someone will make it useful one day.



Aug 27, 2015 by andrewmyles Version: 2.6 OS: Windows 8 64-bit Ease: 1/10 Functionality: 10/10 Value: 10/10 Overall: 1/10



Tiny < 5MB and the most powerful on the planet.
It offers much more features than any professional software of 3+ GB can offer.

Ease of Use scored to 3 coz not newbie friendly, Newbie need a nice learning-ride to AVISynth Scripting Language. Best combo for Newbies might be VD or VDMod (sadly frozen project) plus MPC.
Overall scored to 10 because of unique features for absolutely FREE.

Sincere Bunch of THANKS to those who are devoted in the Developments.
Keep The GooD show RuNNinG.
:)



May 26, 2011 by Bonie81 Version: 2.6.0 Alpha 3 OS: Other Ease: 3/10 Functionality: 10/10 Value: 10/10 Overall: 10/10



This is the ONLY free non linear video editor that you'll EVER need. Nothing else compares to Avisynth simply for the fact that there are hundreds of third party filters that will suit your need. It can do anything you want, provided that you have the approriate plugins annd filters, from denoising to deinterlacing and etc. What sets Avisynth apart from other softwares is that it is completely script base; this makes the learning curve much more difficult compared to other video editors. If you are not satisfied with the repertoir of filters available to you, you can even create your own via the scripting language or by plugins. I gave the ease of use a 5 because of the learning curve and the fact that you have to spend extensive amount of time searching and testing external filters that you'll like.


Jun 1, 2010 by Dreadkillz Version: 2.58 OS: Windows 7 Ease: 5/10 Functionality: 10/10 Value: 10/10 Overall: 10/10


23 comments, Showing 1 to 5 comments

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