Hi, I am planning to build a device that takes composite video, for example, and then digitizes it. I have seen several NTSC decoder chips (such as ADV7403) from Analog Devices that output RGB 4:4:4 video that seem like they could do the job. After the video is digitized, I need to deinterlace and scale it to 160x120 pixels for my planned display device. I would need a frame buffer since I would not be outputting the pixels row-by-row, but column-by-column.
My questions are:
-What does the output of the Analog devices decoder look like? (how many pixels high and wide is it?) Is it already deinterlaced?
-What is the best way to get the video down to 160x120? What kind of chip will I need?
Thank you.