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by Philip-J-Fry
62 days ago
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QR codes can only recover data because the QR code itself is built with redundancy. It's always storing more data than is actually needed. But if you lose too much of the QR code, it becomes impossible to read. Think about the most basic example. It is for example impossible to recover 100 bytes of data from a binary file, even with error correction, if you only have 80 bytes. Also, QR codes are only storing the bits. There's absolutely no way H264/H265 is storing bits in images any more efficiently than just writing the bits to a regular binary file. |
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I'm just trying to make any sense why someone thought it would be any good idea to do memory->QR->MP4 encoding, instead of some sane format.