Couldn't find a forum for video hardware, so writing here.
We're looking for a cheap composite keyer hardware to put source video on the background of a real-time subtitle. We are not looking for studio quality, it will only be used for displaying some subtitles for information.
A few hundreds dollars looks expensive to me. A $40 cheap dvd player can overlay semi-transparent menus on the video source, in addition to all its real functions and mechanical hardware. All I want to do is to composite 2 video sources (green bg subtitle + source video)
I don't want a software solution, as I use a pc to generate the subtitle, and it has to be overlayed onto 10 different videos realtime. So I use 10 keyers, rather than 10 pcs with video hardware.