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Forums Adobe After Effects Expressions mgJSON and timing of compositions

  • mgJSON and timing of compositions

  • Otto Tasnadi

    July 30, 2021 at 1:21 pm

    Hey, I saw here on this link (https://helpx.adobe.com/in/after-effects/using/data-driven-animations.html) that it might be possible to define the number of frames to offset (frameNumber) a layer from the start of the data layer specified from a “mgJSON” file

     

    1. Would this work with any other composition? (I am trying to find a solution to retime multiple compositions programmatically from a JSON file)

    2. How should exactly the mgJSON file look like? I am trying to write it but it just not working?

    3. Can I find anywhere documentation on this?

    4. If this is not the proper way to do it, then I should make it with scripting?

    If I understand it correctly, it is possible to control the start frame of a media file on the timeline from a Json file (more exactly from an mgJSON file).

    Does anybody have any knowledge in this direction?

    I can’t really figure it out what and how to do it… I have an mgJSON file like this, but it does not activate the Align the Video With Data

    {

    “videoSyncTimeList”:

    [

    {

    “fileName”: “sample1.mp4”,

    “frameNumber”: 1000

    }

    ]

    }

     

    I actually want to control other composition’s timing. Is it Possible?

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