Search two hour video for a specific five second clip I have a five second clip that is stripped from a much longer video.  I need to identify exactly where in the longer video this clip begins/ends.  There could be multiple occurrences of the clip, I would like to identify them all, not just the first one.  How would I go about doing this?
I have used the mpdecimate filter in ffmpeg to identify repeated frames before, but I can't quite think of anything to use for this specific task of searching for a video within a video.
I can think you should try this project, https://github.com/nielstenboom/recurring-content-detector. I would recommend trying the Color Histogram or Color Texture Motion algorithms. The Convoluted Neural Network one is quite compute intensive and the results haven’t been that good for me. Since your looking for such a small clip, you might need to reduce the frame skip parameter to get more accurate timings.