On date Thursday 2009-10-22 16:43:32 +0800, S R encoded: > Hi > > I am learning to use ffmpeg for my research work. > > I have three questions: > > 1. Is there a way to search the libav-user list by topic or subject? I > cannot find one.
Mailman archive interface is rather dumb, try this instead: http://dir.gmane.org/gmane.comp.video.ffmpeg.libav.user > 2. I am trying to extract some specific frames from a video file. Is there > any example code that tells how to do it. I already know how to get frames > from a video from the beginning, as I got an example code from the ffmpeg > tutorial. Maybe the ffprobe code. > 3. Is there an example code that explains how to extract the motion vectors? I'm not sure libavcodec exports that information, for sure you can ask libavcodec to show them in the decoded image, check for example the -vismv option of ffplay. > Appreciate your help with the above. Thank you! Regards. _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
