Video Rendering with Node.js and FFmpeg

Re:Video Rendering with Node.js and FFmpeg by notpushkin on Sunday March 26, 2023 @11:53PM (#35322681)

Oddly enough, I've done something pretty similar, but using Python + PIL instead: https://github.com/notpushkin/glitzz

Two improvements you can borrow:

1. FFmpeg can read frames from HTTP URL, which you can (ab)use to generate frames on the fly without hitting the disk

2. If you do that, you can also switch from PNG to BMP, since CPU is now your bottleneck

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Re:Video Rendering with Node.js and FFmpeg by brianshaler on Monday March 27, 2023 @07:15AM (#35325217)

Another way to do it on the fly is to feed image data into stdin of ffmpeg. I haven't tried with BMP with that method, so the intermediary encoding might not be spared.

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