What is the secret to how the VIP Scaler works, and can it handle 4:2:2 video?

To thepancake: Thank you. All I wanted was a direct answer in terms of video engineering technology. You answered the question directly and without a soliloquy.

To Tricky: You must not work with video very frequently. What you just described is a nearest neighbor algorithm for upsampling. If you were to examine the output of such a filter on a a diagonal edge it would look horrendous on a hi-def monitor. This would not be acceptable for our purposes. We develop our own filters and coefficients for such work.

To jakobjones: Thank you for your response, but your excerpt from the manual only futher underlines my point regarding the vague nature of how the VIP Suite user guide is written.

I develop video systems and video IP for a living. Altera does not describe how their VIP Suite functions with regard to video processing terminology which is what video engineers utilize. It was obviously written by someone who does not understand video technology otherwise, it would have been stated in the manual, "...does not support 4:2:2 video streams..."

This is the kind of nuts and bolts information that I am talking about that would have saved us time. This has happened to us more than once with regard to use of Altera's other IP. We spend quite a bit of time reading fluff and guessing at the meaning rather than directly discerning it quickly from the text.

I appreciate the offer of using you as a contact. I may take you up on this if required in the future.

As a side note: It would really be an excellent idea for Altera to develop a training module for the Video IP Suite - explaining how it works and translating their terminology into standard video processing terminology for each component as well as the constraints on each component.

Please do not comment on the 30-minute slide show sales pitch for the VIP Suite...it is just as generic and useless as the user guide IMHO.

Thanks Again...