Recorded movie into Xvid but has wrong aspect ratio.

Discussion in 'DivX / XviD' started by pcaddict, Apr 13, 2008.

  1. pcaddict

    pcaddict Guest

    I have recorded a movie (4:3) off a Sky decoder (PayTV) onto a HDD DVD recorder (Sony). I then dubbed it to DVD-RW. The Sky decoder is set to 16:9 so a 4:3 movie is viewed with black bars on the sides. The DVD recorder can't produce DVDs in 16:9 format, only 4:3, but playback on a 16:9 TV appears normal. I rip the DVD onto my PC to convert it into XviD but the frame size appears too narrow. The frame size after conversion is 528 x 512 which is narrow.

    Is there any software that can stretch the width of the frame size back to proper 4:3 so no black bars on the sides on the DVD MPEG?

    I plan to record more movies and convert them into Xvids.
     
  2. jony218

    jony218 Guest

  3. pcaddict

    pcaddict Guest

    FairUse 2.8 was the software I used. The problem is that I have black bars on the sides of a 4:3 DVD not 16:9. What I see is a 4:3 frame with black bars on the sides and narrow video in the middle. The "Use TV Display Mode" only brings sizes with the height being larger.

    Is there any way to make FairUse open the ISO as a 16:9 DVD not a 4:3 DVD?
    Or is there a way of manually resizing the ouput frame size?
     
  4. davexnet

    davexnet Active member

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    You have to crop out the black bars before you encode it,
    sa stated by Jony218.
     
  5. pcaddict

    pcaddict Guest

    If a 4:3 movie fills the 720 x 576 frame (PAL). Then 720 - 200 = 520 and 576 - 200 = 376. So then 520 x 376 is still within the 4:3 aspect ratio. But the Xvid I get after cropping the black bars has the frame size 528 x 512 which is definetly not 4:3. It should be something like 528 x 384.
     
  6. davexnet

    davexnet Active member

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    You're missing a step. Do the crop, followed by resize.
    Resize it to 640*480, or 672/504 or similar. Then you'll get 4/3.

    720/576 is not mathematically 4/3 as you can probably see.
    The 576 is the imporatant part, it corresponds to the PAL line
    definition.
    The DVD player just stretches the 720 to fit. The confusion arises
    because when you're dealing with SD mpg2, they are not square pixels.

    Further evidence can be seen by the 1/2 res dvd standard,
    352/576 (PAL) and 352/480 (NTSC) which also displays perfectly fine
    and fills the 4/3 picture. It just has less horizontal detail,
    that's all.





     
  7. pcaddict

    pcaddict Guest

    But those sizes are not availible after the cropping page. The options availible are all almost square sizes. They are not wide enough. The problem is that the input DVD's video is too narrow in the first place. Its a recording not a retail DVD.
     
  8. davexnet

    davexnet Active member

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    Try using virtualdub (latest release) with FccHandlers mpeg 2 plugin.
    You get full control to do everything.

    If it's not helpful, create a small clip of the source as-is
    and post it to a file hosting site so we can look at it.
     
  9. pcaddict

    pcaddict Guest

    [​IMG]

    As you can see, the video does not fill up all of the 4:3 screen.
    Sorry for the late reply.
     
  10. pcaddict

    pcaddict Guest

    Note: You will need to right click / view image on the icon thx.
     
  11. davexnet

    davexnet Active member

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    I saw the image and it's as I suspected.
    I can see what needs to be done, but I've never used the
    Fairuse wizard, so I can't advise you on it's capabilities.

    As I mentioned before, it needs to be cropped, (as you have done)
    then the remaining pixels "stretched" left to right.

    Why don't you try virtualdub with FccHandlers mpeg 2 plugin
    to see if it works for you?
     
  12. pcaddict

    pcaddict Guest

    My movie is on recorded on a DVD-RW and DVDFab HD Decrypter does recognise the disc. I can play the DVD though. FairUse can extract the video files but they can only be used in FairUse.
    What is another DVD ripper good for DVD-/+RWs?
     
  13. davexnet

    davexnet Active member

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    Hello pcaddict -
    Your recorded dvd is not content protected in anyway, is it?
    Just copy the video_ts folder to your harddrive.

    Open the folder in my computer or explorer and check the files
    in details view. There should be some big *.vob files, that's the main
    movie.

    Give it a try and see what you have.
    You still want to convert the main movie to avi ?


     
  14. pcaddict

    pcaddict Guest

    I copied the files to my HDD using windows explorer. Would there be any ways to fix the DVD structure files so the DVD becomes 16:9 anamorphic and not 4:3? A fix for the IFOs and BUPs or simular?
     
  15. davexnet

    davexnet Active member

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    There are some tools, such as Ifoedit, and another thing that can change
    the fields in the mpeg header. I don't think it will help.
    You actually have the black bars (left and right) encoded in the video.
    Drag one of the main movie VOB's onto virtualdub and see what I mean.

    Once you do that, you'll see how easy it is to crop and resize.
     
  16. pcaddict

    pcaddict Guest

    VOBs are in 1GB segments. How do you join them in VirtualDub?
     
  17. davexnet

    davexnet Active member

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    You could use something like DGindex. This program acts as a frame
    server. It "serves" the connected VOB's, so that they appear as one file.

    Alternatively, it may be possible to encode each VOB separately
    to AVI, and as long as you use the same attributes, you can
    join all the avi files (in Virtualdub) once they're complete.
     
    Last edited: Apr 28, 2008
  18. pcaddict

    pcaddict Guest

    I gave womble a go but the output is not the the cropped preview. It can join VOBs and MPEGs though.
     
  19. pcaddict

    pcaddict Guest

    Womble joined the VOBs together. In VirtualDub, I selected the cropping to be done. For the resize I keyed in 640 x 496 (PAL). Should I select any of the other options in the resize window?
     
  20. davexnet

    davexnet Active member

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    Not really, I normally choose "disabled" under "aspect ratio",
    and I set "newsize" "absolute" and type in the exact numbers I want.

    You can choose "codec friendly" and perhaps multiple of 4.

    Are you trying to recreate the content true A/R ratio (by this I mean
    the A/R such that a circle appears as a circle and not as an egg
    either on its side or upright) for viewing on your PC, or are you going to watch it on a divx-enabled dvd player ?
     

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