Latest post Thu, May 16 2019 4:10 PM by persyst. 6 replies.
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  • Thu, May 16 2019 1:44 AM

    • persyst
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    Which Codec for final editing and color correction?

    I'm wondering which clips would be the best to use for making my final video mixdowns of subsequences to be used in adding transitions and color corrections.

    My original footage clips are
    Resolution: 4K
    Codec: ProRes 422HQ (10 bit)
    Data rate: 754 Mbit/s = 94.25MB/s

    I've transcoded my clips to DNxHR LB (18.26 MB/s) for doing the bulk of my editing in subsequences, but I'm now ready to swap my DNxHR LB clips with Highest Quality clips for exporting video mixdowns of the various subsequences for use in adding transitions and final color correction.

    Should I relink my subsequences to the original ProRes clips for exporting video mixdowns, or should I just transcode the ProRes files into DNxHR 444 (177.67 MB/s) or DNxHR HQ (88.88MB/s) and relink the subsequences to the high quality DNxHR clips?

    If relinking to the high quality DNxHR files is the way to go, should I be transcoding to DNxHR 444 since the data rate is 177.67 MB/s which is greater than the 94.25MB/s ProRes original clips?

    Thanks!!

     

     

    Media Composer 8.4.5 Pro Tools 2018.12 Mac Pro 2013, MacOS High Sierra 10.13.6 • 2.7GHz 12-core with 30MB of L3 cache • 64GB (4x16GB) of 1866MHz DDR3... [view my complete system specs]
  • Thu, May 16 2019 1:44 PM In reply to

    Re: Which Codec for final editing and color correction?

    A Same as Source export will preserve the quality of your footage, and will give the best possible quality.

    The only caveat would be if there are any effects in the sequence, as they would be recompressed.

    Certainly there is no advantage in using a 444 codec.

    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]
  • Thu, May 16 2019 1:56 PM In reply to

    • persyst
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    Re: Which Codec for final editing and color correction?

    Which codec should I be using for the Video mixdowns to be used in color correction?

    Media Composer 8.4.5 Pro Tools 2018.12 Mac Pro 2013, MacOS High Sierra 10.13.6 • 2.7GHz 12-core with 30MB of L3 cache • 64GB (4x16GB) of 1866MHz DDR3... [view my complete system specs]
  • Thu, May 16 2019 3:30 PM In reply to

    Re: Which Codec for final editing and color correction?

    Sorry, I was not not being clear: Relink to the original footage and consolidate the sequence. Export Same as source for the colour correction. This will avoid any recompression from a mixdown.

    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]
  • Thu, May 16 2019 3:49 PM In reply to

    • persyst
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    Re: Which Codec for final editing and color correction?

    Ok, now I get it. Thanks. Could you please tell me which DNxHR codec the ProRes clips get re-cased as when doing a SaS transcode? Also, sould I be using DNxHR 444 for the final export after grading?

    Thanks again!

     

    Media Composer 8.4.5 Pro Tools 2018.12 Mac Pro 2013, MacOS High Sierra 10.13.6 • 2.7GHz 12-core with 30MB of L3 cache • 64GB (4x16GB) of 1866MHz DDR3... [view my complete system specs]
  • Thu, May 16 2019 4:04 PM In reply to

    • smrpix
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    Re: Which Codec for final editing and color correction?

    SAS -- Same as Source -- does not transcode.  It will pass the untouched ProRes through in a quicktime container.  No DNxHR involved.

     

    Your final deliverables depend on how you are grading (Resolve?) and the requirements of where you are delivering.

  • Thu, May 16 2019 4:10 PM In reply to

    • persyst
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    Re: Which Codec for final editing and color correction?

    Ah ok cool. I’m doing the color grading directly in MC with Baselight, then exporting for YouTube and iTunes Store as 1080HD.

    Media Composer 8.4.5 Pro Tools 2018.12 Mac Pro 2013, MacOS High Sierra 10.13.6 • 2.7GHz 12-core with 30MB of L3 cache • 64GB (4x16GB) of 1866MHz DDR3... [view my complete system specs]
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