Latest post Wed, Jan 24 2018 6:43 PM by Eric V. 0 replies.
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  • Wed, Jan 24 2018 6:43 PM

    • Eric V
    • Not Ranked
    • Joined on Tue, Jun 23 2015
    • Posts 14
    • Points 150

    10&12 bit DNxHR HQ, SQ and LB: no luck

    Hi,

    I'm now using DNx SDK release 2.3.5.43.  Release notes for the 2.3.4 release say:

    10/12 bit-depth support is added for DNX_HQ/DNX_SQ/DNX_LB (1272/1273/1274) compressions

    However, the DNX_GetInfoFromCompressedFrame() never returns 10 or 12 in the depth field. :-(

    I call DNX_CreateEncoder with the following:

    (gdb) p compParams
    $3 = {
      structSize = 64,
      width = 960,
      height = 720,
      compressionID = DNX_SQ_COMPRESSION_ID,
      colorVolume = DNX_CV_709,
      colorFormat = DNX_CF_YCbCr,
      subSampling = DNX_SSC_422,
      depth = 10,
      PARC = 0,
      PARN = 0,
      CRCpresence = 0,
      VBR = 0,
      alphaPresence = 0,
      losslessAlpha = 0,
      premultAlpha = 0
    }

    I encode a frame and immediately after I call DNX_GetInfoFromCompressedFrame() on the encoded frame and get:

    (gdb) p compressedParams
    $4 = {
      structSize = 64,
      width = 960,
      height = 720,
      compressionID = DNX_SQ_COMPRESSION_ID,
      colorVolume = DNX_CV_709,
      colorFormat = DNX_CF_YCbCr,
      subSampling = DNX_SSC_422,
      depth = 8,
      PARC = 0,
      PARN = 0,
      CRCpresence = 0,
      VBR = 0,
      alphaPresence = 0,
      losslessAlpha = 0,
      premultAlpha = 0
    }

    Is this a known issue?

    Thank-you,

    Eric Vinet
    Autodesk

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