Found this site recently.
Used a 2-minute short as a test, using PlayMark plugin.
* as of a couple of weeks ago:
- playmark didn't detect video initially, however it did find it after I started it playing. Record queue took it over, and from watching the progress meter, it got to 1:30 out of 2:00 then failed.
* as of now
- playmark isn't detecting the video at all.
Site offers a free trial period.