Latest post Fri, May 31 2013 3:23 AM by Igor Ridanovic. 1 replies.
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  • Fri, May 24 2013 7:38 PM

    Weird video levels issue on import. Anyone know why?

    So I just noticed that when I export a quicktime video file at DNX 145 with 601/709 levels in DS, and then reimport it at DNX 145 with 601/709 levels in DS, the levels get crunched. What should be 100 IRE is 92 IRE and ) 0 IRE becomes 7.5 IRE. Does anyone know why this is?

    The weird thing is, if I export the file RGB and bring it in 601/709, it is fine. Also, if I export it 601/709 and bring it into Media Composer at 601/709 settiings, it is fine as well (but if I export same as source 601 in MC and bring it into DS, the same problem occurs). Anything I export from DS at 601/709 settings won't come back into DS with the right video levels.

    My system was recently upgraded to 11.02. Could it be a bug there? I've tested movie files I previously exported before the update and they come in with the wrong levels too. However, these same movie files had been exported and imported in the past (also before the update) and had no issue.

    Has anyone had this issue and/or could shed some light on it?

  • Fri, May 31 2013 3:23 AM In reply to

    Re: Weird video levels issue on import. Anyone know why?

    Yes, I believe this is a known bug. The levels I/O is working better in 4:4:4 than in 4:2:2.

    Igor Ridanovic

    www.HDhead.com

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