Thanks Carl, Is that for the CLI? I was thinking more for the programmatic access, where is the skip frame option there? Is the API still limited it what it can obtain for motion vectors?
Best regards, Sam On 17 May 2017 at 12:54, Carl Eugen Hoyos <[email protected]> wrote: > 2017-05-17 13:32 GMT+02:00 Sam Halliday <[email protected]>: > >> Is there a way to get hold of low level information, i.e. partial >> decodings, of an mp4 file? Since this is all I need for my analysis, I >> hope it would be more efficient than decoding the entire video: >> >> 1. key frames (skipping motion compensation frames) as >> decoded images > > See the -skip_frame option. > > I believe motion vectors are produced as part of decoding and that > cannot be optimized easily. > > Carl Eugen > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
