Problem with MPEG STREAMCLIP

Discussion in 'Digital Video' started by wildstrawberry, Oct 10, 2008.

  1. wildstrawberry macrumors newbie

    Joined:
    Oct 10, 2008
    #1
    I have subtitle films that I received on dvd. I am working in FCP

    I got the films into fcp by exporting them to quicktime, 100% quality, dvcpro 50 Pal- (the movies are pal)

    The QT files have frames missing here and there, so there's a stutter in the video. Happens every minute or so. Any idea what this might be? The original dvds don't stutter.
     
  2. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #2
    You don't need DVCPRO 50 PAL, as that means a bitrate of 50 Mbit/s and DVD video is encoded with 7-8 Mbit/s at maximum.

    You can use the normal DV PAL codec for a normal edit, which has a bitrate of 25 Mbit/s (3.125 MByte/s).

    I don't know where the stutter is from, but maybe your hard drive can't sustain a constant bitrate of 50 Mbit/s (only 6.25 MByte/s), which would be strange. How is the drive connected?

    The other thing is, that the MPEG-2 codec used for DVD video uses keyframes, meaning not every frame is compressed, but only ever 25th or 10th frame (depending on the settings I think), and the rest is interpolated.
    Maybe it was set to 1500 frames (60 seconds)?

    I hope that helps somehow and is not a lot of bollocks (it's already late here).
     
  3. trudd macrumors regular

    trudd

    Joined:
    May 27, 2004
    Location:
    Texas
    #3
    Agreed, DVCPro is a bit much.

    I've never used MPEG Streamclip. I would recommend trying Handbrake.
     
  4. slu macrumors 68000

    slu

    Joined:
    Sep 15, 2004
    Location:
    Buffalo
    #4
    Do not use handbrake. This will compress to mp4, which is a poor editing format. I am not sure what your issue is. I have had nothing but success using MPEG Streamclip to convert DVDs and VOBs to NTSC-DV and then editing in FCE.
     

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