Obviously I'm not a PHP coder, but this anycodings_php should give you an idea at least. Otherwise if you try to force a anycodings_php specific size you can risk a squished or anycodings_php stretched output. Also the scale filter will anycodings_php allow you to set a specific width or anycodings_php height and with -1 it will automatically anycodings_php provide the correct value to preserve anycodings_php aspect. If not set or null, the raw image stream will be output directly. The path or an open stream resource (which is automatically closed after this function returns) to save the file to. Use the scale filter instead of -s anycodings_php especially if you're already using anycodings_php filters. A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor(). A sane range is 2-5 (a lower anycodings_php value is a higher quality). Use -qscale:v to control jpg output anycodings_php quality. vcodec mjpeg, -an, and -f rawvideo are anycodings_php superfluous Then run your actual crop command: ffmpeg -i input -vf $cropvalue,scale=240:-1 -vframes 1 -qscale:v 2 output.jpg This will result in something like: crop=640:480:0:50 Cropdetect outputs to the console, so anycodings_php you can parse the output and then use it anycodings_php as a variable: ffmpeg -i input -t 1 -vf cropdetect -f null - 2>&1 | awk '/crop/ ' | tail -1 Ffmpeg is a framework use to convert (encode or decode ) video from one format to another format.
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