AviSynth: Видео өңдеуге арналған кадрлық сервер бағдарламасы

Computer frameserver program

AviSynth is a frameserver program for Microsoft Windows, Linux and macOS initially developed by Ben Rudiak Gould, Edwin van Eggelen, Klaus Post, Richard Berg and Ian Brabham in May 2000 and later picked up and maintained by the open source community which is still active nowadays. It is free software licensed under the GNU General Public License.

The scripting language is a dataflow language: but it contains many features familiar to programmers, including variables, distinct datatypes, conditionals, and complex expressions. The language works primarily with the audio/video clip as a built in data type. The clip is a complex structure with many attributes such as width, height and duration. The language also has several other more standard data types: int, float, bool and string. These can be used to perform calculations, decisions, and write text such as subtitles to the video. The script has a single return value, which is the audio and video 'seen' by the program running the script. This is normally the last line of the script, but a return statement may be inserted at any point.

AviSynth 3.0 was a complete rewrite of AviSynth 2. x, and aimed to overcome the limitations of AviSynth 2. x. Adding improvements such as an abstracted color space model, in which new color spaces (including two with 45 bit depth) could be supported through a plug in mechanism, better cache management for better performance, and using Ruby rather than the homegrown language employed in current versions. AviSynth 3.0 was to be available for other operating systems than Windows, instead relying on GStreamer, extending support to platforms such as Linux, Mac OS X and BSD. Development has been stalled since August 2007. AviSynth+ is a fork of the official AviSynth 2. xx, introducing long sought features such as 64 bit support, multithreading, deep color spaces, support for recent compilers, new scripting constructs (new control flow constructs such as loops), and increased performance in many areas. At the same time it retained 100% compatibility to the AviSynth 2.5/2.6 series, both for filters and host applications. At the time of writing (2023 06), it is also actively maintained.

AviSynth 2. xx may be used under operating systems other than Windows through the use of Wine. To work on scripts VirtualDub/VirtualDubMod can be used as on Windows. To interface between AviSynth under Wine and for example FFmpeg running on a Linux host, Avs2YUV can be used. Avs2YUV is a Windows command line program that is run under Wine and renders the output of an AviSynth script to stdout that is then piped to FFmpeg. Avs2YUV also supports writing to a named pipe. There is a Linux port of AviSynth called AvxSynth.

Program name License Comments Homepage Adobe Premiere Pro Proprietary, commercial Versions 6.0 and later (up to and including CS4) have an AviSynth import plugin available. Premiere AviSynth import plugin Avanti GUI Proprietary, freeware Avanti GUI is a free front end for FFmpeg with the option to insert AviSynth as pre processor. Avanti GUI AvsPmod GPL AvsPmod is AviSynth script editor with builtin player, syntax highlighting and code autocompletion. AvsPmod Cinema Craft Encoder Proprietary Cinema Craft Encoder is a commercial MPEG 2 encoder that supports AviSynth input. Cinema Craft FFmpeg LGPL2.1+, GPL 2+ FFmpeg compiled for windows can receive AviSynth input instructions GOM Player Proprietary, freeware, ad supported can play avs files Media Player Classic GPL Media Player Classic is capable of loading and playing AviSynth scripts. The 32 bit version is needed. Media Player Classic Microsoft Expression Encoder Proprietary, freemium Microsoft Expression Encoder can import and transcode avs files. MPlayer GPL MPlayer can play avs files Nero Multimedia Suite Proprietary, commercial Nero Showtime can play avs files SUPER Proprietary, freeware, ad supported SUPER (Simplified Universal Player, Encoder and Renderer) is freeware from eRightSoft that can encode most common video formats and has full AviSynth support. SUPER TMPGEnc Shareware/freeware TMPGEnc is a free MPEG 1 and MPEG 2 encoder. TMPGEnc Plus and TMPGEnc Express are commercial versions of TMPGEnc that include enhanced functionality, as well as the removal of a 30 day restriction on MPEG 2 encoding present in TMPGEnc. Pegasys Inc. Total video converter Proprietary, trialware Total video converter has an AviSynth import plugin available. Total Video Converter VirtualDub GPL VirtualDub is a widely used all purpose video converter. VirtualDub VirtualDubMod GPL VirtualDubMod contains several AviSynth specific features such as explicit support for AviSynth scripts, an AviSynth script editor, and more. However, it has not been updated since 2006 and contains many bugs. VirtualDubMod Windows Media Player Proprietary, component of Windows / freeware Windows Media Player is capable of loading and playing AviSynth scripts, so it is a good choice for simple playback and testing. It may require some registry tweaks to get it working. Windows Media Home

In addition, several programs have now been created which accept only AviSynth scripts as input thereby simplifying the programs themselves but giving users the full power of AviSynth for input. There are also several batch encoding applications that tie together AviSynth with command line audio and video encoders and muxers to provide an all in one, modular, customizable video encoding application. MeGUI is an example of this kind of application. Although AviSynth scripts are meant to be easily opened in simple text editing programs, there are several editors meant especially for editing AviSynth scripts such as AvsPMod.