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VapourSynth
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R64
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<section id="introduction">
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<h1>Introduction<a class="headerlink" href="#introduction" title="Permalink to this heading"></a></h1>
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<p>VapourSynth is an application for video manipulation. Or a plugin. Or a library.
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It’s hard to tell because it has a core library written in C++ and a Python
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module to allow video scripts to be created. It came to be when I started
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thinking about alternative designs for Avisynth and most of it was written
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over a 3 month period.</p>
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<p>The software has been heavily inspired by <a class="reference external" href="http://www.avisynth.org">Avisynth</a>
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and aims to be a 21st century rewrite, taking advantage of the advancements
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computers have made since the late 90s.
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The main features compared to Avisynth are:</p>
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<blockquote>
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<div><ul class="simple">
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<li><p>Multithreaded - Frame level multithreading that scales well</p></li>
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<li><p>Generalized Colorspaces - New colorspaces can be specified at runtime</p></li>
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<li><p>Per Frame Properties - Additional metadata can be attached to frames</p></li>
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<li><p>Python Based - The scripting part is implemented as a Python module so you
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don’t have to learn a special language</p></li>
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<li><p>Support for video with format changes - Some video just can’t stick to one
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format or frame size. VapourSynth can handle any kind of change</p></li>
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<li><p>Compatible with a large number of already existing Avisynth plugins</p></li>
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</ul>
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</div></blockquote>
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<section id="about-the-author">
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<h2>About the author<a class="headerlink" href="#about-the-author" title="Permalink to this heading"></a></h2>
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<p>Fredrik Mellbin majored in electrical engineering with a focus on image analysis
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and processing with medical applications. He has previously worked with digital
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electronics and likes to plan his own software projects in his spare time.
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When he one day found himself out of work he needed something to do between
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sending out job applications and waiting for a reply. The natural choice for
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the author was to try to improve Avisynth, the software that once made him
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interested in video editing. VapourSynth is the result of all that time waiting.</p>
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<p>Feel free to contact me at fredrik.mellbin that round thingy with an a gmail.com
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if you need help to port a filter or want to sponsor the development.</p>
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<p>© Copyright 2012-2023, Fredrik Mellbin.</p>
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