I am quite new to tweaking/hacking wordpress to suite my needs, so please be patient with me.
Here's the scenarion: I installed ffmpeg on the box where I run wordpress from. In my wordpress installation I created a custom post type called videos. Now I'd like to run ffmpeg and create a thumbnail everytime I create a new "videopost". Since ffmpeg-php doesn't work as expected I'd run ffmpeg via exec();.
Now my main question is: How could I run the exec(ffmpeg); function everytime a new post in the custom post type is created?