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Cannot get duration of a video when using a QGraphicsVideoItem as QmediaPlayers videoOutput rather then a QVideoWidget

  • basically my question is as stated in the title - i am using both the examples provided by Qt:
    Video Graphics item and the videoWidget examples.
    in the videoWidget's example all the files i have tested allow me to seek a position in the video.
    i think the problem is something to do with the duration property of QMediaPlayer as when i use the videoWidget example the duration property works and returns a value however in the VideoGraphicsItem example the duration is 0 for most videos i play back!

    Please help!
    Regards, Tim.

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