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Editorial Team
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Asked: 2026-06-05T06:18:18+00:00

I am having an issue with OSMF. I have an MP4 that is 40MB.

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I am having an issue with OSMF. I have an MP4 that is 40MB. It is being progressively loaded. My issue is the video wont begin playing until the video has fully loaded. I am testing this on a web server. Any idea what’s going on or what I am not doing?

var mps:MediaPlayerSprite   = new MediaPlayerSprite();
mps.x                       = 159;
mps.y                       = 53;
mps.width                   = 512;
mps.height                  = 288;
mps.resource                = new URLResource("resources/video/3.4.1.mp4"); 
addChild(mps);

I’ve even tried adding mps.mediaPlayer.bufferTime = 1; but no luck. I’ve even tried 0.

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1 Answer

  1. Editorial Team

    That’s right. It’s an encoding issue. Even i had the same problem. Running the MP4 FastStart script on the video file fixes this.
    http://www.datagoround.com/lab/

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