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I need a piece of C# software that overlays an image onto an existing file (e.g. avi, wmv), and then saves it with the overlay in place. It would presumably need to go through bitmap by bitmap of the video to do this, and then it needs to save the file again in either avi or wmv format.
DirectShow.Net offers something very similar with DxLogo (which allows you to superimpose and save a video file) but it only works with a webcam, or other video device stream -- not with an existing, already saved video file as I need it do.
I don't think this will be hard for someone more acquainted with this end of the spectrum, I don't need a full program, just something to get this to work successfully. I don't have a huge budget for this as a result, but I will tip for a job well done.
Thanks for your interest.