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This is bound to get you banned. I would do it a little bit more clever (with lower bitrate/throughput/storage sizes)...

Encode the data inside audio, preferrably outside human audible range, and then use a nice video of singing birds, or whales talking, and use the "hidden" frequencies to hide the data.

I don't know if Youtube has any filters that cut out frequencies, but this way they can't ban you, since you've uploaded a really nice personal video of your singing birds, instead of the conspicuous looking QR-like codes as in the OP ;-)




> preferrably outside human audible range

With any lossy audio compression algorithm, everything outside the human audible range is filtered away completely as a first step. That's compression 101.

Also there's much less bandwidth in the audio channel than the video channel, and then far less again if you're trying to hide a signal in another signal.


Even without compression, most audio (including YouTube's) is sampled at 44.1kHz which filters anything >22kHz. https://en.wikipedia.org/wiki/Nyquist_rate




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