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Questions about the Video Capture Port of TMS320DM648

tianxing hou
Expert 2435 points
Other Parts Discussed in Thread: TMS320DM648

Hi, 

I have some questions about the Video Capture Port of TMS320DM648.

First, the VP have the function of "Chrominance Re-sampling Operation", the datasheet said it performs the horizontal portion of a conversion between YCbCr 4:2:2 format and YCbCr 4:2:0 format. The vertical portion of the conversion must be perfomed in software. What's the mean horizontal portion and the vertical portion.

Second, could I realize the YCbCr 4:2:2 format transfer to the YCbCr 4:2:0 format by the re-sampling and scaling operation.

Regards,

Tianxing