DNxHD Settings (revisited)

Some further tips found online:

  • [http://www.sonycreativesoftware.com/forums/ShowMessage.asp?ForumID=4&MessageID=704856]
    • You have more than a dozen choices in the DNxHD codec…  (but you might not see them) because of the little display bug. When you select the Avid DNxHD codec, a window pops up. At the bottom of that window is just a little sliver of a pulldown menu. Click that and all should become clear.
  • [http://www.sonycreativesoftware.com/forums/ShowMessage.asp?ForumID=4&MessageID=701760]
    • DNxHD is a broadcast codec. And types that are not broadcast standards are not included.
    • …in the “Custom Settings” you can … set the Frame rate and the Field order to suit your … footage.
  • [http://www.sonycreativesoftware.com/forums/ShowMessage.asp?MessageID=712102&Replies=1]
    • Settings for HD interlaced:
      • Color levels should be RGB
      • Size should be 1920×1080
      • Pixel aspect 1:1
      • Field order Upper
      • DNxHD-TR 175 8-bit template
      • Be sure to click OK (the dialog may fail to display it)
    • Variation for HDV:
      • Thin Raster is supposed to be better for stretched pixels like 1440×1080
  • [http://www.sonycreativesoftware.com/forums/ShowMessage.asp?ForumID=4&MessageID=710761]
    • You will be able to preserve aspect and gamma with DNxHD. Be sure to select the right bit depth and color levels for your originals. (For a) 1440×1080 source, (i.e.) HDV, … you will want 8-bit, 4:2:0 RGB output to match the originals.
    • One user’s experience (not mine):
      • Here’s the file settings for … m2t files (as provided by MediaInfo):
        • 25Mbps, 1440×1080 (16:9), at 29.97fps, MPEG video component version 2,(Main (high @1440)) BVOP
      • Here’s what it reports for the .mov generated by DNxHD:
        • 220Mbps, 1920×1080 (4:3) at 29.97fps, VC-3, DNxHD
      • I’m not sure where it got the 1920×1080 frame setting from, though. In the frame size box, I had custom frame settings of 1440 x 1080 with a PAR of 1.333.
      • Reply:
        • 1440 X 1.333 = 1919.52 which rounds up to 1920.
        • Your render frame size should be set to 1920×1080 to preserve the aspect. As gets mentioned a lot in these forums, MOV does not respect PAR.
  • [http://www.sonycreativesoftware.com/forums/ShowMessage.asp?ForumID=4&MessageID=709379]
    • Best way to export timeline to FCP for CC:
      • Change your color space to RGB. Click the little pulldown window at the bottom, select 1080i/59.94 DNxHD 220x. And when you say OK to this window, change the slider from the current 50% quality to 100%. Then render out. The file will be slightly less than 2 minutes per gig.
      • Avid 1:1 is an uncompressed codec designed for SD video. DNxHD is an HD codec and the only one Avid uses.

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