Altera's video framework includes many reference designs running on various kits. Below is the list of available designs with brief summary:
Video Example Design
The Altera video and image processing example design demonstrates dynamic scaling and clipping of a standard definition video stream in either NTSC or PAL format and picture-inpicture mixing with a background layer. The video stream is output in high definition resolution (1024×768) over a digital video interface (DVI).
This design is fully verified on the Cyclone III Video development kit.
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