I wrote a python script that uses FFmpeg to detect and copy motion from video files. Watch my video walk through or download the code from Github. World precious metal mining trends 1994-2017 Printer Friendly Text for Language Learners Categories: UncategorizedTags: ffmpeg, programming, python, software, tools, video tools 1 reply › jpjanssen October 29, 2018 • 14:38 Note to self. Another useful ffmpeg command is: ffmpeg -i in.mp4 -vcodec libx264 -crf 24 out.mp4 Use to compress video file size. Tested with 438 mb input file from action cam. Reduced to 200 mb. Barely noticeable loss in quality. Speed ~0.45x.