720x480 source to 320x240 iPod? Distortion?

Discussion in 'Digital Video' started by super_kev, May 1, 2006.

  1. super_kev macrumors 6502

    super_kev

    Joined:
    Jan 12, 2005
    Location:
    USofA
    #1
    I have some video clips in iMovie at NTSC (720x480) and I sent them out as custom 360x240, instead of the iPod setting of 320x240. After looking at both my custom size and the iPod setting, I'm curious why iMovie has the iPod setting to 320x240 instead of 320x214, in order to preserve the aspect ratio (half of 720 is 360, but iPod will only do 320, so 240 needs to be scaled down...) Does the iPod setting smash the sides of the clip? I don't want to delete the video only to have to come back and rebuild it so I don't run into distortion problems.
     
  2. Texas04 macrumors 6502a

    Texas04

    Joined:
    Jul 2, 2005
    Location:
    Texas
    #2
    Just Make 2 clips and rename them differently in quicktime. But from what I have noticed it really doesnt do much, at least that it is really noticeable.
     
  3. balamw Moderator

    balamw

    Staff Member

    Joined:
    Aug 16, 2005
    Location:
    New England
    #3
    Note that 720x480 assumes tall skinny rectangular pixels and is usually rescaled to 640x480 for square pixel 4:3 displays like on the iPod, so 320x240 actually makes sense unless it's 16:9 "widescreen" video.

    Note also that if you're using MPEG-4 instead of H.264 you can go to ~640x360 widescreen and still view it on the iPod.

    B
     
  4. Counterfit macrumors G3

    Counterfit

    Joined:
    Aug 20, 2003
    Location:
    sitting on your shoulder
    #4
    Just export them at full size, then use iSquint to make them the right size/bitrate.
     

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