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YUV420 to YUV422 conversion using EDMA

Thupakula
Intellectual 765 points

Hello,

I am trying to display the encoder output (YUV420) on DM6437.

As the output driver does not support the YUV420 ,trying to convert into YUV422.

And i need high throughtput so iam planning to do with EDMA.

So can any one suggest me how to approach for this. ?

Thanks,

Thupakula.

  • 0
    TI__Mastermind 37340 points

    The following app note written for DM6446 (same resizer hardware on DM6437) may help; it uses resizer to do 4:2:2 to 4:2:0 conversion, but the information in the app note will likely help you figure out how you can use resizer hardware (off loads CPU, and automatically uses DMA) to do 4:2:0 to 4:2:2.  Of course the software will be different; the app note based on DM6446 approaches the software from a Linux perspective (different than what you would find on DM6437)

  • 0
    Prodigy 105 points

    Generally, the decoder is configured to generate the output in the YUV422 format to avoid YUV420 to 422 conversion.