"letter boxing"...what does that mean?

Discussion in 'Digital Video' started by BeeVeePee, Jan 11, 2008.

  1. macrumors newbie

    Joined:
    Dec 29, 2007
    #1
    after downloading video onto my mac via imovie HD....sometimes I will "click" on one of the clips that were downloaded...the mac starts "thinking" and a popup says "Letter Boxing".....I let it do it's work..for up to about 40minutes..and it still will be processing...eventually I'll just "Force Quit" and start over again...but refrain from clicking on the clip until I've saved it..

    any idea whats going on...?
    thanks everyone
     
  2. macrumors 68000

    bigbossbmb

    Joined:
    Jul 1, 2004
    Location:
    Pasadena/Hollywood
    #2
    What kind of video are you working with?


    Letterboxing is the process of masking the top and bottom of 4x3 video to make it look like 16x9 (or any other widescreen aspect). Letterboxing doesn't actually change the size/shape of the video, it just determines what part you will see.
     
  3. macrumors 603

    wordmunger

    Joined:
    Sep 3, 2003
    Location:
    North Carolina
    #3
    I thought it was the other way around -- taking a 16 x 9 and making it fit on a 4x3 screen by adding black strips to the bottom and top.

    As opposed to just cropping off the sides of a 16X9 video and displaying that at 4x3.
     
  4. macrumors 65816

    snickelfritz

    Joined:
    Oct 24, 2003
    Location:
    Tucson AZ
    #4
    That's correct.
     
  5. thread starter macrumors newbie

    Joined:
    Dec 29, 2007
    #5
    what do you mean by "what kind"? not sure ..
     
  6. macrumors 68000

    bigbossbmb

    Joined:
    Jul 1, 2004
    Location:
    Pasadena/Hollywood
    #6
    Yes, letterboxing is also a way to view 16x9 material in a 4x3 frame. Both definitions are indeed correct. One is more a recording definition and the other is more of a viewing definition.

    By "what kind" I mean are you using MPEG4, DV, or HDV?
     
  7. thread starter macrumors newbie

    Joined:
    Dec 29, 2007
    #7
    digital video...panasonic cam...GS83 ....
    I just don't know why it does it and why my computer keeps "not responding" once i click it.....
     
  8. macrumors 6502

    Joined:
    Jan 23, 2003
    Location:
    Weehawken New Jersey
    #8
    Settings...

    These new camcorders have letter-boxing built in, you can select to tape in letter-box format or straight 4x3, also check your iMovie preferences about importing video....
     
  9. macrumors 6502a

    WildPalms

    Joined:
    Jan 4, 2006
    Location:
    Honolulu, HI
    #9
    WTF? Thats a load of horse hockey's and you know it. What made you come up with that?
     
  10. macrumors 68000

    bigbossbmb

    Joined:
    Jul 1, 2004
    Location:
    Pasadena/Hollywood
    #10
    Yes, both are correct definitions of "letterboxing". What I originally posted was "letterboxing" in terms of a 4x3 camera recording faux 16x9 material by masking out the top and bottom of a 4x3 source. The other definition of "letterboxing" is shrinking a 16x9 video to fit a 4x3 window. The black bars are still there, but they are not part of the source.

    No "horse hockey" there.
     
  11. macrumors 68040

    decksnap

    Joined:
    Apr 11, 2003
    #11
    There is a preference in the preferences pane to disable this feature. It probably means you've got a 4:3 workspace in iMovie and are importing widescreen content. This will squeeze or clip the content, unless you let it 'letterbox' it.

    If all of your content is 16:9, you want to make sure you use a widescreen iMovie project and not a standard one, and you won't have to deal with that.
     

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