Anybody knows tools to embed arbitrary data into videos?

Searching for a tool that encodes arbitrary file as pixels in video. By quick googling only found this one https://github.com/fangfufu/Converting-Arbitrary-Data-To-Video, but it isn't very effective or advanced. Result looks like this, if you're curious.

submitted by /u/oosho
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from hacking: security in practice https://ift.tt/a3uXwCv