Right now it disabled, but may be you can dupply simplest default formula from<div><br></div><div><a href="http://underpop.online.fr/f/ffmpeg/help/geq.htm.gz">http://underpop.online.fr/f/ffmpeg/help/geq.htm.gz</a></div><div><br></div><div>to it, like</div><div><br></div><div>in ffmpeg/plugins.opts</div><div><br></div><div>geq p(W-X\,Y) </div><div><br></div><div>right now this line is commented out... </div><div><br></div><div>For some weird reason my intel machine fails to use any ffmpeg video filter, but they work on android/termux... </div>