I have quicktime X what if I download quicktime 7?

Discussion in 'macOS' started by adelaye, Dec 19, 2010.

  1. adelaye macrumors newbie

    Joined:
    Dec 17, 2010
    #1
    I have quicktime X and I *WANT* to keep it.
    However, quicktime 7 supports older media files which I need, if I download this...do I get to keep both of these versions or will one take over the other?

    Thank You :)
     
  2. Hellhammer Moderator

    Hellhammer

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    Finland
  3. adelaye thread starter macrumors newbie

    Joined:
    Dec 17, 2010
    #3
    thanks!
     
  4. iThinkergoiMac macrumors 68030

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    Jan 20, 2010
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    Terra
    #4
    Which formats does QT7 support that QTX doesn't?
     
  5. Hellhammer Moderator

    Hellhammer

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    #5
    According to Wikipedia: "QuickTime 7 may still be required to support older formats on Snow Leopard such as QTVR, interactive QuickTime movies, and MIDI files."
     
  6. larkost macrumors 6502a

    Joined:
    Oct 13, 2007
    #6
    There is a common misunderstanding here. There are two layers that bear the name "QuickTime" and people get very confused when reading things because they don't undersstand that there are those two layers:

    Layer 1) The "Player" applications: these are the things that live in your /Applications directory and provide a GUI with the window and play buttons. There is a "QuickTime 7 Player" and a "QuickTime X Player". On SnowLeopard the "QuickTime X Player" is installed by default, whereas the "QuickTime 7 Player" is not. Note that the "QuickTime X Player" only has some very rudimentary editing abilities, whereas the "QuickTime 7 Player" when used with a "QuickTime Pro" license has more editing abilities.

    Layer 2) The "Framework" layer: these are the actual code that allows playback (and some editing) of the media files. These bits live in /System/Library/Frameworks (and are therefore not to be tinkered with). On SnowLeopard both "QuickTime 7" and "QuickTime X" frameworks are always installed. The "QuickTime X Framework" is very fast, streamlined, modern, and can in some cases use hardware acceleration. However, it is limited in the number of codecs that is supports. The "QuickTime 7 Framework" is a pile of loosely associated codecs built on a framework that is more than a decade old using a plugin system. While it is very flexible, there is not a lot of optimization.

    Now comes the actual tricky part: the QuickTime X Player will happily use the QuickTime 7 Framework to playback content that the "QuickTime X Framework" can not play, but it does not know how to use the full editing system that is in place in "QuickTime 7 Framework".

    So if you need to edit things AND have a QuickTime 7 Pro license, then you need to install the QuickTime 7 Player, otherwise you have no need of it (which is why it is not installed by default).
     
  7. iThinkergoiMac macrumors 68030

    Joined:
    Jan 20, 2010
    Location:
    Terra
    #7
    Right. I figured that the QTX player and QT7 player both use the same underlying framework (apart from QT7 not being able to use the QTX-specific frameworks). Hence my question. But I guess HellHammer answered that one.
     

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