How do I play Cineform video?

Discussion in 'Digital Video' started by steve23094, Dec 10, 2014.

  1. steve23094 macrumors 68020


    Apr 23, 2013

    I have a Cineform 4k video I want to play. I don't need to edit it or anything.

    I have downloaded the free codec from GoPro and installed the two relevant packages into my Quicktime folder. I have the Cineform preference pain in my System Preferences.

    When I go to play the video Quicktime starts a conversion process which takes a very long time because it is a large file. It ends up converting from a 330Gb AVI file to a 7.3Gb MOV. I assume I am losing a lot of quality in the processing because of the high compression. I just want to be able to play the file natively from the AVI file without this conversion for best quality, is this possible?

  2. Dave Braine macrumors 68040

    Dave Braine

    Mar 19, 2008
    Warrington, UK
  3. steve23094 thread starter macrumors 68020


    Apr 23, 2013
    Thanks for the reply. No, I don't have QT7, I am running QT Player 10.4 bundled with Yosemite. Is that the problem and it will never work in my version of QT? Can I still legally download QT7? Would there be any problems having both versions installed?

    I noticed VLC won't play the file either. Failing any of that is there a decent free third party player which will work?
  4. 3dadd macrumors newbie

    Jan 20, 2012
  5. steve23094 thread starter macrumors 68020


    Apr 23, 2013
    Yes, that worked. Thank you.

    If anyone else is interested you can download Quicktime Player 7 from here:-
  6. zebity, Oct 14, 2016
    Last edited: Oct 30, 2016

    zebity macrumors member

    Aug 1, 2008
    Hi Mac Cineform Users,

    If you do a google search for "VLC cineform" you will find that there is now a freely downloadable CINEFORM decoder for VLC from "Kolor".

    I have tested this with 4K Timescape (4K Cineform wrapped in AVI) video playing back via USB 3 connected HD (USB 3 via Sonnet Allegro Pro PCIe Card to MacPro) and it appears to decode ok, but I had some dropped frames.

    I think this is due to speed of USB HD, but will also test via RAID or 10GBE connected storage.

    This is good news for Mac users looking to play 4K video, as my experience with the 32-Bit QT 7 Decoder is that it is very poor performance.



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