How can I insert a single picture into a stream to be seen for a specific seconds? There is abundant info in ffmpeg man, but I do not want to become a movie magician, just solve an urgent task. Please drop me a sample command line. Thanks.
a) Convert the stream into WMV format
b) Split the stream where you wish to insert the picture
c) Convert said picture into WMV format
e) If you intend to broadcast it, make sure you do not violate 27 C.F.R. sec, 5.65 (h) (1988) which bans broadcasting subliminal content, or any local regulation. That's the only Federal ban on subliminals I could find.