Using the command below we create a jpg image using frame 15 from the movie file, the output size is set to 560×240, the line following are the output from ffmpeg
/usr/local/bin/ffmpeg -i /moviefile.mp4 -ss 00:00:15 -vframes 1 -s 560×420 -r 1 -f mjpeg /thumbs/movie_thumb.jpg ffmpeg version 1.2 Copyright (c) 2000-2013 the FFmpeg developers …