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Activity Forums VEGAS Pro Vegas 12 and jittery MXF playback

  • Vegas 12 and jittery MXF playback

    Posted by Martin Seemungal on March 27, 2013 at 2:52 pm

    Having an issue working with MXF HD material.
    Not a problem importing but get jittery video on playback and rendering.
    If I change the framerate in the project settings 1920×1080 60i to half pal. 12.500 it seems to lessen the issue but of course will not render like that….and wouldn’t want to. but leads me to believe this is framerate related.
    could it be a drop frame issue? i’ve tried changing to progressive only…no impact.
    never seen this before as Vegas seems to work with just about anything you throw at it.
    no issues with same file in Avid and when playback on VLC the file is stable.
    any advice welcome!

    Graham Bernard replied 13 years, 4 months ago 2 Members · 6 Replies
  • 6 Replies
  • Graham Bernard

    March 27, 2013 at 3:25 pm

    1] What are the specs of your original Media

    2] What are your Project Settings?

    3] What are you rendering to?

    Let’s get the simple stuff outta the way first – yes?

    Grazie

    Video Content Creator and Potter
    PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
    Cameras: Canon XF300 + PowerShot SX50HS Bridge

  • Martin Seemungal

    March 27, 2013 at 4:06 pm

    Original media is HD 1920 x1080 60i.
    Although it is likely up scaled or converted from pal. But the MXF file is NTSC HD 1920×1080.
    It plays fine (0n vlc) until dropped into Vegas timeline or in Vegas preview— it jitters and shudders ESP when there is motion.
    Obviously whatever I render to does the same thing.
    And I am using the very latest Vegas pro 12 .

  • Graham Bernard

    March 27, 2013 at 4:50 pm

    [Martin Seemungal] “Original media is HD 1920 x1080 60i.”

    OK….

    [Martin Seemungal] “Although it is likely up scaled or converted from pal.”

    I don’t understand? Either the original is one or the other? Please explain?

    In any event, please say what your Project settings are? You’ve omitted this, and it will have a bearing on the results you are getting.

    Cheers

    Grazie

    Video Content Creator and Potter
    PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
    Cameras: Canon XF300 + PowerShot SX50HS Bridge

  • Martin Seemungal

    March 27, 2013 at 5:31 pm

    The MXF is always HD 1920×1018 60i
    Sometimes it was created using NTSC HD 1920×1080 sometimes pal HD 1080i sometimes sd NTSC and sd pal…it’s a mix because material comes from all over the world.
    But the MXF I am using is 1920x1080x32 framerate 29.970
    Project settings as follows:
    HD 1920×1080 60i 29.970fps
    Upper field first (I tried progressive scan and no difference)
    Output rotation: o degrees original
    Framerate: 29.970
    3d mode :off
    Pixel format: 8bit
    Full resolution rendering quality-good
    Motion blur: Gaussian
    Deinterlace method: blend fields(I tried changing this also..no luck)
    Adjust source media to better match…is checked.

    Many thanks and let me know if you need anything else.

  • Martin Seemungal

    March 27, 2013 at 6:08 pm

    One other point when I view ‘codec information’ in vlc player it says: codec: MPEG-1/2 Video (mpgv)

  • Graham Bernard

    March 28, 2013 at 8:51 am

    [Martin Seemungal] ” I view ‘codec information’ in vlc player it says: codec: MPEG-1/2 Video (mpgv)”

    Well that IS very similar to my own MXF output of my Canon XF300.

    Please download the very useful and free CODEC interrogators:

    1] MediaInfo – https://mediainfo.sourceforge.net/en

    2] G-Spot – https://download.cnet.com/GSpot/3000-2248_4-10381198.html

    You’ve raised this CODEC thing as a possible issue, let’s get that out of the way – yes?

    Cheers

    Grazie

    Video Content Creator and Potter
    PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
    Cameras: Canon XF300 + PowerShot SX50HS Bridge

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