uploaded videos are having no thumbnails

So I have spend like a week on that. After each of my uploaded Videos do not seem to have a thumbnail.

I had to fix: /easysocial/administrator/components/com_easysocial/includes/ffmpeg/adapter.php

lines 237 ff to:

$command .= '-f mjpeg ';

$command .= $output . ' ';

which basically means to put the output format before the output filename and fix the type of file format from mjepg to mjpeg.