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
