Hi Hendrik, Sounds like you have the solution already. Would you be interested in sharing your code with me please? Or if not, perhaps some code snippets? Not a problem if this is not possible for any reason, commercial or otherwise. Would be grateful for any help you could provide.
Best Regards, Stephen. -------- Original-Nachricht -------- > Datum: Mon, 17 May 2010 13:57:30 +0200 > Von: "Hendrik Jürgens" <[email protected]> > An: [email protected] > Betreff: Re: [libav-user] How to determine "film cuts" in a video clip? > Am 17.05.2010 13:08, schrieb Stefano Sabatini: > > On date Sunday 2010-05-16 22:22:00 +0200, Stephen Hunt encoded: > >> Hi All, > >> > >> Thinking of using ffmpeg libraries to write a program that attempts > >> to pinpoint editing cuts in a video clip. Would import this > >> information into an editing program to enable easier study of how a > >> film is edited. > >> > >> Anyone have any pointers on how to approach this please? My C > >> language skills are quite rusty (wrote two programs, 10k lines each > >> in Uni, early 1990s). But very keen to get something like this > >> working. Also, has anyone perhaps done this already? > > > > It should be relatively easy to port some of the existing code which > > already do this to a libavfilter filter. I don't have time for this > > right now, but you may file a feature request on roundup *or* try to > > add it to FFmpeg yourself, I'll be glad to help in reviewing the patch > > for the latter case. > > > > Regards. > > I've implemented a such algorithm. It basically substracts the values of > two images and "looks" whats left. > If the two pictures were from the same scene, this final image should be > near black. You have to do some testing to get a good threshold for this > black image. This will also fail if you have a scene with fast movement > (i.e. massive camera shake). But it worked with the mose videos I've > tested so far. > > Best regards > Hendrik > _______________________________________________ > libav-user mailing list > [email protected] > https://lists.mplayerhq.hu/mailman/listinfo/libav-user -- GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01 _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
