Comparing video files with Crypto

[Arnaud_N]

@Mike_D

If you want to compare the content of video files, which could detect the “same” (or similar) content in a different format (different codec, bit-rate, image size, etc.) you would need to use Perceptual hashing - Wikipedia

Thanks for the hint. Again not sure whether this would take much time to me to implement (versus delaying the comparison for years and doing other things instead ).

@Beatrix_Willius

I suspect that the bottleneck is the resizing of the images and not the RGBSurface for a 16x16 images. But it’s always good to test.

Yes, I’m thinking that too. I was just telling you about this for general purpose.

@Christian_Wheel

You really need to vet perceptual hashes with edge cases. I’m a DJ so I often have two copies of a music video - one is the clean version and the other is explicit. They may have visually identical content but their audio differs by a single word, and a lot of the perceptual hash algorithms that don’t sample 100% of the content believe they’re the same file.

But they’re not, and confusing the two is big enough of an issue to possibly cost you your job.

While it’s not my job per se, I’m in the same boat, for private use.
I have so many media files that I managed to copy, modify, merge over the years. Around 15 TB of data to sort…