VapourSynth

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On the record

Audio processing

The getting-started guide demonstrates loading audio and applying gain in a script.vapoursynth.com · read 11 Oct 2026

Avisynth compatibility

It is compatible with a large number of existing Avisynth plugins.vapoursynth.com · read 11 Oct 2026

Changing formats

It supports video whose format or frame size changes within the video.vapoursynth.com · read 11 Oct 2026

Color spaces

New color spaces can be specified at runtime.vapoursynth.com · read 11 Oct 2026

Desktop app

Novapoursynth.com · read 23 Sep 2026

Encoding workflows

VSPipe can pipe script output to tools including x264, FLAC, FFmpeg, and mpv.vapoursynth.com · read 11 Oct 2026

Frame metadata

Additional metadata can be attached to individual frames.vapoursynth.com · read 11 Oct 2026

GPU filter limitation

The GPU support post says GPU filters do not accept variable format or size input.vapoursynth.com · read 11 Oct 2026

GPU limitation

The R80 post says only one GPU at a time is usable by default.vapoursynth.com · read 11 Oct 2026

GPU support

The R80 post describes Vulkan 1.4 GPU support and says a modern GPU supporting Vulkan 1.4 is required.vapoursynth.com · read 11 Oct 2026

Installation platforms

The recommended pip installation has binary wheels for Windows, Linux, and OSX and requires Python 3.12 or later.vapoursynth.com · read 11 Oct 2026

Integrations

The documentation lists applications with VapourSynth support, including Hybrid, mpv.net, StaxRip, and VirtualDub2.vapoursynth.com · read 11 Oct 2026

Mobile app

Novapoursynth.com · read 23 Sep 2026

Plugin installation

The installation guide describes using VSRepo on Windows to install and upgrade plugins and scripts.vapoursynth.com · read 11 Oct 2026

Purpose

VapourSynth is an application for video manipulation, with a C++ core library and a Python module for creating video scripts.vapoursynth.com · read 11 Oct 2026

Support

The author invites contact for help porting a filter or sponsoring development.vapoursynth.com · read 11 Oct 2026

Team collaboration

Novapoursynth.com · read 23 Sep 2026

Threading

It supports frame-level multithreading that the documentation says scales well.vapoursynth.com · read 11 Oct 2026

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