Defrag Tools #152 - Media eXperience Analyzer part 4: Video Glitch Analysis

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The Discussion

  • User profile image
    ScottHuang

    Hi Chad,

    I try to analyze a issue with MXA.

     if user try to speed forward or speed backward when they watching a movie, the movie will freeze for a about 10 seconds.  Can this issue be called "glitch"? if yes, how to measure this issue. I try use "video glitch severity", but it seems don't match the user experience I got.

    thanks.

     

  • User profile image
    ChadBeeder

    @NG7711: No, I don't think that would show up in the trace as a glitch. Is this when streaming a movie over the network, or playing back from local media?

  • User profile image
    ScottHuang

    @ChadBeeder: It's a local video.

  • User profile image
    MrXRay

    @NG7711 when you speed forward or backward the video element probably perform a seek, so video is not playing and no glitch will be logged, the procedure that I normally use is to zoom in the trace to the point where video started playing back again. look for the threads from the video app that you are using and follow the readythreads to find what is causing video to not playback earlier.

    What app are you using? does it repro on any local content or with an specific content?

  • User profile image
    ScottHuang

    I am using the native video player on windows 10 mobile.  there does have a gab in "GPU decoding". so, I think you are right, because GPU don't have anything to decode. I will go analyzing the video app to figure out what's happening. thanks.

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