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TI Home » TI E2E Community » Support Forums » Digital Signal Processors (DSP) » DaVinci™ Video Processors » DM816x, C6A816x and AM389x Processors Forum » Converting YUV Interleaved to semi-planar
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Converting YUV Interleaved to semi-planar

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Herb Kutscha
Posted by Herb Kutscha
on Aug 02 2012 20:22 PM
Intellectual610 points

My application de-interlaces and scales SD inputs. According to the documentation, the output of the combined DEIH/Scaler block must be YUV 4:2:2 interleaved, which the tech reference calls 422I, and some call YUYV. We need to send the data out PCIe as 32-bit ARGB or YUV semi-planar.

We can conver YUYV to ARGB using the SGX530, but it will be a bottleneck, limited to around 2 SD inputs. Is it possible to output YUYV from the high-quality video path back to VIP0 as YUYV, and output YUV semi-planar from VIP0 to memory in preparation for DMA? Is there another way to  get to YUV semi-planar from YUYV? Can I use the noise filter, or some other block?

DM8168 VPSS RGB YUV
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  • HardikShah
    Posted by HardikShah
    on Aug 03 2012 00:55 AM
    Mastermind20155 points

    Hi,

    There are two outputs of DEIH Scalar blocks. One output can be with YUV422I and other can be with YUV420. Output with YUV420SP can also output YUV422 semiplanar. You can use this output to get YUV422 SP.

    Regards,

    Hardik Shah

    Regards,

    Hardik Shah




    Please mark this post as answered via the Verify Answer button below if you think it answers your question.  Thanks!

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  • Herb Kutscha
    Posted by Herb Kutscha
    on Aug 03 2012 18:34 PM
    Verified Answer
    Verified by Herb Kutscha
    Intellectual610 points

    Thanks, Hardik. That closes the issue with an answer I'd hoped for. Full speed ahead!

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