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Aspect ratio problem

Discussion in 'Video to DVD' started by MobyUK, Mar 2, 2007.

  1. MobyUK

    MobyUK Guest

    Hi there. Hope this is the right forum.
    I have some avi files where the aspect ratio is wrong when played. A search on the net came up with MPEG4Modifier as the answer but I can't find any help or instructions as to hwo to use it. No matter what O do with it, when I re-save the avi and play it the aspect ratio is still wrong. It is also wrong in the same way when I run it through Convertxto dvd.
    Any help would be appreciated.
     
  2. MobyUK

    MobyUK Guest

    No ideas then?
     
  3. attar

    attar Senior member

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    I assume you mean the aspect ratio is 4:3 or 16:9 and you want to change it with MPEG4MODIFIER?
    All I did was browse to the avi file and click the button under
    "Display AR:" Then "Save.."
    Check the files with 'Gspot' to see if they are in fact divx or xvid avi files.
     
  4. MobyUK

    MobyUK Guest

    Hi attar. The AVI files are "tall and thin", if you know what I mean, like stretched vertically. Whatever I do with MPEG4Modifier they stay the same.
    Gspot says: [USER] DivX503b959p
     
  5. attar

    attar Senior member

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    What's the width and height (w x h)and the aspect ratio.This example is 384x288 and 4:3

    [​IMG]
     
  6. MobyUK

    MobyUK Guest

    Hi. It's telling me WxH 432 x 320, SAR 1.35 (27.20), PAR 1.000, DAR 1.35 (27.20)
     
  7. attar

    attar Senior member

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  8. MobyUK

    MobyUK Guest

    Thanks attar, looks useful. I'll post back with results.
     
  9. MobyUK

    MobyUK Guest

    Ah, Virtualdub won't accept Divx video files.
     
  10. attar

    attar Senior member

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    Yikes.Mine does.

    [​IMG]
     
  11. MobyUK

    MobyUK Guest

    Well I'm obviously doing something wrong here. Sorry to be a pain but any ideas?
     
  12. MobyUK

    MobyUK Guest

    Could it be that I need to install some missing codecs?
     
  13. MobyUK

    MobyUK Guest

    Well I downloaded DivX codecs and then Virtualdub did recognise the video. But when I change the aspect ratio as that thread suggests the result has lost all resolution.
     
  14. attar

    attar Senior member

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    Try Clicking on 'Expand frame and letterbox image' only;without resizing.
     
  15. MobyUK

    MobyUK Guest

    Well this is odd. The original avi is 699MB but when I save the altered version it comes out as nearly 18GB with the aspect ratio the same as the original but much reduced quality.
     
  16. MobyUK

    MobyUK Guest

    Ignore that. It seems to be doing the job because when I preview the changed video in Virtualdub it looks fine, right aspect ratio and quality looking the same as the original. But how on earth do I get it to save as an avi file the same size as the original instead of this enormous size? It got to 12.8GB before I ran out of space on the partition I'm using and that looked to be only about 50% of the complete file.
     
    Last edited by a moderator: Mar 11, 2007
  17. attar

    attar Senior member

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    Before you save it are you clicking 'Video' -> 'Compression' and then selecting a DIVX compressor ?Divx..fast???
    Also, maybe the Audio may have to be 'full processing'
     
  18. MobyUK

    MobyUK Guest

    Sorry attar, that cures the file size problem but the resulting video is terrible quality (loads of pixelation) and the audio is way put of sync. I used the DivX 6.5.1 Codec by the way.
     
  19. attar

    attar Senior member

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  20. MobyUK

    MobyUK Guest

    I'll try those links. Thanks for your help attar. At least I know more now than when I started this thread :)
     

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