VapourSynth: A video processing framework with simplicity in mind

https://www.vapoursynth.com/doc/introduction.html

by j1elo • 3 years ago

113 12 3 years ago

j1elo• 3 years ago

I just read about this on a recent entry about FFmpeg, and thought it might interest the HN folks.

Note to mods: The link has a title that could be confusing and isn't descriptive at all, so for the HN entry I took the title from the source code repo, which seems much better (while the main domain seems like the more interesting thing to share).

pimlottc• 3 years ago

VapourSynth is an application for video manipulation.

As you said, the docs don't really describe what it's good for, care to give a short summary?

dylan6043• 3 years ago

If it's anywhere near AVISynth as it claims, then it is a format that has been around for longer than ffmpeg. The ffmpeg filter chain is a gnarly beast, and can be difficult for some people to grok. The more complex it gets, the worse it is in legibility. It is just a single command after all. AVISynth, and presumably VapourSynth, allows you to write the filter chains formatted like a program. It's just easier for people to grasp. You then feed that as the source to ffmpeg so the command line becomes very very simple

My biggest question is if the video processing is at least at 10bit. AVISynth fell out of usability for me because at its core it was 8bit.

cogman10• 3 years ago

Short summary:

It's a DSL for video editing using python as the backing language. You can do things like "take this video, crop it this way" or "apply noise reduction algorithm xyz" or even "Do AI upscaling". Vapoursynth has a pretty decent collection of 3rd party plugins that can do anything you could imagine to a video.

nimish• 3 years ago

Glad to see avisynth style editors still developed.

VapourSynth: A video processing framework with simplicity in mind

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