MKV to DVD - good video, but a bit jumpy

Discussion in 'MPEG-1 and MPEG-2 encoding (AVI to DVD)' started by JorgeO, Jun 18, 2008.

  1. JorgeO

    JorgeO Member

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    Hello,
    I've been fiddling around with the concept of anamorphic DVD.

    Just Dl'ded a few snippets (about 2 min each) of 1280X720 progressive sources and converted them to 720X576 25 fps (progressive?) DVD.
    Used many different encoding programs, both trialware and freeware.
    Max video bit rate was 8500 kb/s.

    In most of them the image has a very good quality (40" LCD TV), but in some scenes the movement is not fluid - it has kind of a jumpy motion.
    The same DVD, when played in the PC is fluid, so I suppose it's the player.

    Is there a way to improve the movement without sacrificing the overall quality? (a new player wouldn't be convenient just now - I plan to get a Blue Ray one in the near future).

    Thanks for any help.
     
  2. davexnet

    davexnet Active member

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    Was a frame rate conversion involved? That's when it usually happens.
     
  3. JorgeO

    JorgeO Member

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    Yes, from 23,976 to 25 FPS.
     
  4. davexnet

    davexnet Active member

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    A couple of things yuo can try.
    Frame serve the video to the encoder at 25 fps then encode at same.
    They'll be no jerky movements, but you'll have the slight speedup
    (4% or so). You'll also have to separately re-encode and speedup the
    audio and then mux it in.

    A second thing, and I'm not sure if it will work, you have to try it.
    Encode the video at a hybrid 23.976 720/576. Produce the elementary
    stream, (m2v). Then use DGpulldown to retime the frames from 23.976
    > 25. Mux it in with the regular audio and create the PAL dvd.

    This technique is usually used to convert PAL to NTSC 25 > 29.97.
    Let me know if it works.

     
  5. JorgeO

    JorgeO Member

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    davexnet

    Your second suggestion is very much like what FAVC does, but audio has already been muxed in (it demuxes before video conversion).
    BAT file snippet:

    "C:\Program Files\FAVC\DGPulldown\DGPulldown.exe" "H:\\Working Folder 0\Title0.m2v" -srcfps 23.976 -destfps 25 -inplace

    Should I try it without audio?

    I couldn't try your first suggestion yet.
     
  6. davexnet

    davexnet Active member

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    Sounds as if FAVC is handling it properly. How is the result ?
     
  7. JorgeO

    JorgeO Member

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    With FAVC - same result.
    You know in Universal videos when they start - a globe and the Universal wording encircle it at the same time there's a zoom out? It's jumpy.

    But only in the DVD player, not in the PC.

    It seems I will have to wait for the new player!

    Thanks!

     

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