Latest post Tue, Oct 16 2012 6:02 PM by Job ter Burg. 19 replies.
Page 1 of 2 (20 items) 1 2 Next >
Sort Posts: Previous Next
  • Tue, Nov 22 2011 5:57 AM

    • rreinart
    • Not Ranked
    • Joined on Tue, Nov 22 2011
    • Posts 4
    • Points 70

    DNxHD Available Resolutions - MC6

    I just upgraded to MC6 (from 5.5), and now on importing (or rendering) any media (including titles), the only available resolutions are DNxHD 444 350 X MXF, 1:1 10b RG MXF, or ProRes 4444 MXF. The usual suspects like DNxHD 175, 115, or 36, are not available (and were available in current projects created in 5.5). Project format is 1080p/23.976. Colour space is RGB 709.  

    Any thoughts are greatly appreciated. I can't have all my media created in 444 350 MXF. . . 115, and 36 for offline review have been my workhorses.

    Thanks.

    Filed under: ,
  • Tue, Nov 22 2011 6:46 AM In reply to

    Re: DNxHD Available Resolutions - MC6

    Flip your project from RGB 709 to YCbCr 709. You are seeing RGB resolutions.
    Media Composer /w Symphony option | PT-HD | Win7Pro64 HP | OSX MBP | ISIS5000 | Nitris DX | Artist Mix & Transport & Color | AJA T-Tap | Decklink... [view my complete system specs]
  • Tue, Nov 22 2011 6:51 AM In reply to

    • TrevorA
    • Top 100 Contributor
    • Joined on Thu, Oct 13 2005
    • London
    • Posts 1,147
    • Points 13,000

    Re: DNxHD Available Resolutions - MC6

    I guess those are the only RGB compliant codecs. The ones you want to use are available in YCbCr colour space.

    RGB709 seems a little odd - presumably that is pixel values encoded and stored as RGB within a 709 range. Excellent, more confusion. 

  • Tue, Nov 22 2011 7:30 AM In reply to

    Re: DNxHD Available Resolutions - MC6

    1080/25p (or the equavalent for NTSC) at RGB Color Space has only 444/1:1 10b resolutions.

     

    Desktop PC

     

    Corsair RM750X|Asus P8Z68 Deluxe(Gen3)|i7 2600K@4.4|Corsair 32G DDR3|PNY Quadro P2000(390.77)|Samsung 850 Pro SSD(OS) 256 GB|2x2TB WD RE4@RAID 0|2x500GB Mushkin SSD@RAID 0|LG BH16NS40|W10 Pro 64bit|Media Composer Software 2018.12 with Symphony Option on Dongle|2xHP 22'' Monitors|M-Audio AV30 Speakers.

     

    Larry as long as I live I will remember you.

     

    3 Heads Digital Films

  • Tue, Nov 22 2011 4:18 PM In reply to

    • rreinart
    • Not Ranked
    • Joined on Tue, Nov 22 2011
    • Posts 4
    • Points 70

    Re: DNxHD Available Resolutions - MC6

    Great. Thanks. That worked.

    Simple fix.

  • Sat, Oct 13 2012 9:02 AM In reply to

    • Mediagix
    • Not Ranked
    • Joined on Sun, Jul 3 2011
    • Posts 91
    • Points 1,115

    Re: DNxHD Available Resolutions - MC6

    Is there an indepth guide available, pointing out the difference of the 444 Avid codec flavours, apart from the whitepapers?

    Why is DNxHD 444 only available in RGB and what happens it if gets mixed into a 709 project?

    about.me/c.g.fell

  • Sat, Oct 13 2012 10:05 AM In reply to

    Re: DNxHD Available Resolutions - MC6

    Mediagix:
    Why is DNxHD 444 only available in RGB
    Because it's an RGB/4:4:4 resolution type, unlike the 'regular' ones, which are YCrCb/4:2:2. So it is meant to accomodate 4:4:4 workflows, where all your imports, renders and created titles will be 4:4:4. In 'regular' projects, all of these will be YCrCb in either 4:2:2 or 4:2:0 or 4:1:1). You can mix and match 4:4:4 and 4:2:2 (or 4:2:0 or 4:1:1) if you want, they will be cross-converted on-the-fly.

    You basically only need to be in 4:4:4 (RGB709) if your sources are 4:4:4 (likes some but not all flavors of HDCAM-SR) and your delivery is supposed to be 4:4:4. This might want to have a look at this video.

    Media Composer /w Symphony option | PT-HD | Win7Pro64 HP | OSX MBP | ISIS5000 | Nitris DX | Artist Mix & Transport & Color | AJA T-Tap | Decklink... [view my complete system specs]
  • Sat, Oct 13 2012 11:45 AM In reply to

    • Mediagix
    • Not Ranked
    • Joined on Sun, Jul 3 2011
    • Posts 91
    • Points 1,115

    Re: DNxHD Available Resolutions - MC6

    great stuff. We really need the "thank you" button in this forum.

    about.me/c.g.fell

  • Sat, Oct 13 2012 12:35 PM In reply to

    Re: DNxHD Available Resolutions - MC6

    TrevorA:
    RGB709 seems a little odd - presumably that is pixel values encoded and stored as RGB within a 709 range. Excellent, more confusion

    Trevor,

    It is not really confusing.

    MC is basically colourspace agnostic, except that it creates titles and test signals at studio swing levels, and sends its output unmodified to what should be a properly (REC 709) calibrated monitor.

    The 709 in the RGB project setting is useful in that it re-iterates that.

    Possibly a better name might have been "444 709" though.

    Then there might have been confusion when the YCbCr projects were changed to the equivalent 422 name.

    Symphony 7.06 OS 10.9.5 QT 7.6.3 Mac Pro 2x2.66 6-core 32GB Ram Aja Kona Lhi. MC 7.0.6 OS 10.9.5 Mac Pro 5.1 2x2.97 6-core 32GB ram Aja I/O express, Apple... [view my complete system specs]
  • Sat, Oct 13 2012 12:41 PM In reply to

    • Mediagix
    • Not Ranked
    • Joined on Sun, Jul 3 2011
    • Posts 91
    • Points 1,115

    Re: DNxHD Available Resolutions - MC6

     

    TrevorA:
    Possibly a better name might have been "444 709" though.

    Then there might have been confusion when the YCbCr projects were changed to the equivalent 422 name.

     

    great idea, why not post it in the suggestions.

     

    about.me/c.g.fell

  • Tue, Oct 16 2012 3:53 AM In reply to

    • dangZoic
    • Not Ranked
    • Joined on Tue, Oct 9 2012
    • Posts 1
    • Points 15

    Re: DNxHD Available Resolutions - MC6

    This is all GREAT info.  I just upgraded to 6.5 from 4.5.  I'm still trying understand the format of this 444 350x codec.  Is it better than 1:1 10bit?

     

    Also, i wish they would make is so i can import 4:4:4 image sequnce. Like say... DPX files.

     

     

     

    _________

    windows base Avid Z400 MC6.5

  • Tue, Oct 16 2012 5:14 AM In reply to

    Re: DNxHD Available Resolutions - MC6

    Is it better than 1:1 10bit?

    Depends on your sources.

    1:1 10bit in SD or HD is uncompressed but in 4:2:2. Meaning that if your sources are 4:2:2 10bit, nothing is being compressed, and the native color space of 4:2:2 is preserved. Going DNxHD 444 with those sources would make no sense, as you would then be wasting bandwith to convert 4:2:2 to 4:4:4 (by which you gain nothing, whatever is not in the source will not magically re-appear in this conversion), and at the same time, the total data is somewhat compressed (DNxHD 444 is a compressed format, much like HDCAM-SR is, with 350/365/444 megabits/sec for 24/25/30fps).

     

    If your sources are created/stored in 4:4:4, it makes more sense to stay in 4:4:4 at least through postproduction (grading most obviously); if you were to capture/import 4:4:4 sources into a 4:2:2 resolution/project, you would throw away the extra color information that 4:4:4 is intended to preserve. After completing the project in 4:4:4, your deliveries can be either 4:4:4 or 4:2:2, depending on the requirements.

    Media Composer /w Symphony option | PT-HD | Win7Pro64 HP | OSX MBP | ISIS5000 | Nitris DX | Artist Mix & Transport & Color | AJA T-Tap | Decklink... [view my complete system specs]
  • Tue, Oct 16 2012 9:11 AM In reply to

    Re: DNxHD Available Resolutions - MC6

    David Yardley:

    The 709 in the RGB project setting is useful in that it re-iterates that.

    Possibly a better name might have been "444 709" though.

    Then there might have been confusion when the YCbCr projects were changed to the equivalent 422 name.

    A new format I need to read about... but do I understand that it's 444 (not 422) within a YCrCb colour space but they gave it the name RGB709???

    From the old Apple Quadro 950 to HP Z8xx. My current own system: 1x Z420 E5 1650 16GB memory, 128GB SSD, 1x XW8600, 2x 3.0Ghz Quadcore, 12GB memory... [view my complete system specs]

    Jeroen van Eekeres 

    Technical director, Broadcast support engineer, Avid ACSR.

     

    Always have a backup of your projects....Always!!!! Yes Always!!!!

    A.V.I.D....... Another Version In Development

    www.mediaoffline.com

     

     

     

  • Tue, Oct 16 2012 11:11 AM In reply to

    • Pixel Monkey
    • Top 75 Contributor
    • Joined on Thu, Oct 13 2005
    • Everywhere. Just like Avid ;)
    • Posts 1,242
    • Points 15,695
    • Moderator: Broadcast Newsroom
      Moderator: Media Composer Getting Started

    Re: DNxHD Available Resolutions - MC6

    The plainest way to describe it is this.  An Avid project set to 444 is RGB color space.  Any video clips that were born before that project got created are what they are.  When they enter the project, any renders, titles, color corrections, keys and effects are created around them and on top of them in the RGB color space.  A clip that enters the project and exits it unaffected in any way won't change.  Likewise any clips born within the project are created with that project's DNA.  So if the project format changes away from 444 RGB before finished clips are born from it, they will take on the new project's DNA... but only if actual changes in color (etc) are made in that separate color space.

    ACA Leader__Avid Pro Vid Moderator__Specs? Many. All qualified. But I still do stupid things. :) [view my complete system specs]

    Editors are superheroes, cutting life together in a world that cuts itself apart.

     

    Chris Bove' (Pixel Monkey)

    Twitter: Follow @heybove

    Blog for Craft Editors

    WWLD (What Would Larry Do?)
    WWND (What Would Norman Do?)

  • Tue, Oct 16 2012 2:07 PM In reply to

    Re: DNxHD Available Resolutions - MC6

    4:4:4 is RGB, 4:2:2 is YCrCb. Don't get confused over color space versus luma levels. DNxHD 4:4:4 is RGB. But it is set up for Studio Swing (709, 16-235/64-940). You may get confused because - some decades ago - Avid unfortunately chose 'RGB' as the label for Full Swing in its import/export modules; those have nothing to do with 4:4:4 or 4:2:2.

    Media Composer /w Symphony option | PT-HD | Win7Pro64 HP | OSX MBP | ISIS5000 | Nitris DX | Artist Mix & Transport & Color | AJA T-Tap | Decklink... [view my complete system specs]
Page 1 of 2 (20 items) 1 2 Next >

© Copyright 2011 Avid Technology, Inc.  Terms of Use |  Privacy Policy |  Site Map |  Find a Reseller