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Altera_Forum's avatar
Altera_Forum
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15 years ago

VIP scaler - dare I say Interlace?

Hello all, does the VIP scaler support interlace? My test system: 1080i Test pattern generator | | Clipper producing 720 x 540i clipped frame (top left quadrant) | | ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

In general, scaling interlaced video does not look very good but I believe the scaler can do that. The catch is probably that you have to set up the core to scale up from 270 to 288 rather than from 540 to 576. This is certainly true for the clipper as well; to get the quadrant you are interested in you should clip to 720 x 220.