Create preview images from FLV videos

I have 125-140 FLV videos, and need a "preview" image for each of them. The task will involve playing each video (using any player e.g. VLC), taking a screengrab of the first non-blank frame, and cutting that up to create a preview image the same size as the original video. You're free to create a preview image by any other mechanism. We would try it with the first one, and confirm that everything is as expected, and then continue with the rest. The deliverable would consist of preview images for each of the provided videos. Edit: Sample FLV attached ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No 3rd party components unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement). ## Platform Not Applicable