Hi, I'm looking for a way to detect repeated fragments in a video file. About 8 years ago I wrote some code to do this (based upon perceptual hashing), but that code is owned by my old employer and I have no access to it any more. And of course now I need something similar
What I did was roughly: calculate a 32 bit hash covering 5 seconds of video, and do that for every second of video (or maybe every I-frame). So an hour of video would give me 3600 hashes. These then could be processed to find near duplicates (using Hamming distance) (actually it was a bit more advanced but you get the idea) Of course I can re-create this code, but I was wondering if there is by any chance something in ffmpeg that I could use for this purpose (e.g. based upon mpeg-7 signatures). Is there some support to do this (e.g. calculating a reasonable good and compact hash)? Any suggestion is greatly appreciated! Frans _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
