Video and Image Processing Suite User Guide

ID 683416
Date 2/12/2021

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15.10. Behavior When Unexpected Fields are Received

The behavior of the deinterlacer assumes an uninterrupted sequence of pairs of interlaced fields (F0, F1, F0, …) each having the same height.

You can guarantee this behavior through the use of the integrated Avalon-ST Video Stream Cleaner or an external stream cleaner. Some video streams may not follow this rule, and the behavior of the deinterlacer is undefined in such cases.

Note: When the bob algorithm is used, and synchronization is done on a specific field (input frame rate = output frame rate), the IP core always discards the field that is constantly unused. The IP core uses the other field to build a progressive frame.