Hi guys,

I'm wondering if anyone here has thought about a high speed checksum for video finger printing. I'd like to avoid if possible reading an entire video file to determine it's checksum, rather I would like to only read segments of the data to try and determine this.

My first thoughts were to use crc32 against selected segments of the files, (say 1 megabyte every 2 megabytes of data) or something like that.

I understand that without checksuming the entire file it's very hard to guarantee uniqueness, however I'm more concerned with speed.

Any thoughts?

---

Alright guys, first generation of File::Fingerprint::Huge is up on cpan. I'll update it with some further refinements as I move forward. Thanks for all of you help!

In reply to high speed checksum for video finger printing? by faber

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