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Cropping DivX movies to remove black bars on widescreen films

Discussion in 'DivX / XviD' started by richks, Mar 29, 2005.

  1. richks

    richks Member

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    Hi all,

    I'm sure this is fairly easy to do, but I can't seem to figure out a good way to crop out the black bars on a DivX movie to make it proper 16:9. I want to do this so that it plays better on my XBox on my 16:9 TV without zooming and losing picture quality. What's the easiest way to do this for a dope like me?

    Rich
     
  2. shiroh

    shiroh Guest

    i use avisynth.

    or you can try virtualdub.

    you need to reencode.
     
  3. The_OGS

    The_OGS Active member

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    Hmmm...
    Okay, I was just talking about this to another guy - widescreen movie, 2.35:1, 704x304 AVI.
    If I had it to do over again I would make it 672x304 (this sneaks it down to 2.20:1 at the cost of a dozen pixels each side :^)
    But anyway the point is, the 'black bars' aren't part of the DivX movie - they are blank empty blackness, where there is no picture.
    You cannot 'crop' the black bars...
    Like Shiroh says, if you want a different aspect ratio you must re-encode ie. my example above, where you're actually cropping width to increase apparent height.
    Regards
     
  4. richks

    richks Member

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    The footage I'm wanting to crop is a 16:9 presentation captured (not by me) from a 4:3 broadcast with black bars added at the top and bottom by the broadcaster and their logo stamped over it in the bottom right corner.

    So, yes, the black bars are part of the movie and are encoded in the video.
     
  5. shiroh

    shiroh Guest

    did you noticed, some movies (official dvd) are 16:9 letterboxed ?

    ok, here is what i would do.
    load it up on vdub.
    filter > null transform > crop as necessary.
    resize to 1:1 aspect ratio

    install avisynth
    open notepad
    and type

    avisource("C:\where\filename.avi")
    crop(2,2,-2,-2) >> according to the number in vdub
    lanczosresize(640,352) >>for example, do some calclation

    save as .avs

    load it up in vdub.
    set fast recompress
    no audio. ( do this later with an audio encoder)
    compression > xvid 1.1 beta1 > 2pass > default settings are good enough.

    encode audio

    mux
     

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