Article ID: 000075409 Content Type: Troubleshooting Last Reviewed: 07/17/2017

Why does my Video IP core display swapped colors or distorted images when processing 4:2:2 sampled data?

Environment

  • Intel® Quartus® Prime Pro Edition
  • Video and Image Processing
    • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    Due to a limitation of all the Video IP cores, you will see either swapped colors (Cb/Cr are swapped on the Avalon-ST bus, Red and Blue colors swapped on the display) or distorted images if you use odd frame widths when processing 4:2:2 data.

    Resolution

    To work around this issue you must use even frame widths when processing 4:2:2 data.  

    Further, the clipper requires even clip start offsets and the Mixer requires even offsets when using 4:2:2 data.

    This behavior is not planned to be changed in any future release of the Quartus® Prime software.

    Related Products

    This article applies to 8 products

    Arria® V FPGAs and SoC FPGAs
    Intel® Arria® 10 FPGAs and SoC FPGAs
    Arria® II FPGAs
    Cyclone® V FPGAs and SoC FPGAs
    Cyclone® IV FPGAs
    Stratix® IV FPGAs
    Stratix® V FPGAs
    Intel® Cyclone® 10 FPGAs

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