QMediaPlayer Synchronization Problem
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I everyone, I have more than one mediaplayer and each mediaplayer has its own video in different videowidgets.
I am using player2->setPosition(player1->position())
However, there is a synchronziation problem. the second video is like coming 1 or 2 frame late.
Is there any solution?
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I everyone, I have more than one mediaplayer and each mediaplayer has its own video in different videowidgets.
I am using player2->setPosition(player1->position())
However, there is a synchronziation problem. the second video is like coming 1 or 2 frame late.
Is there any solution?
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@DzCode You could try to pause player1 first and also player2 and after setting position start both.
@jsulm YEs, I tried it too. But some of the videos can be created in run time later. If I create all videos at the start of the program, no problem about synchronization. However, if a video is created later than others, at the first play it takes time to render it; so that it comes late
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Also, when I do connect(player1, &QMediaPlayer::positionChanged, player2, &QMediaPlayer::setPosition); the end user can see a little flickering
@DzCode said in QMediaPlayer Synchronization Problem:
when I do connect(player1, &QMediaPlayer::positionChanged, player2, &QMediaPlayer::setPosition); the end user can see a little flickering
Yes, because you do the positioning over signals/slots for every frame I guess :-)
Maybe you could start the new video and somewhat later position it? To avoid the delays caused by loading the video. -
Are these players playing the same media?
In that case maybe you can try the function added in 5.15void QMediaPlayer::setVideoOutput(const QVector<QAbstractVideoSurface *> &surfaces)
It should be able to make one single player having multiple video outputs.
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Are these players playing the same media?
In that case maybe you can try the function added in 5.15void QMediaPlayer::setVideoOutput(const QVector<QAbstractVideoSurface *> &surfaces)
It should be able to make one single player having multiple video outputs.
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@DzCode said in QMediaPlayer Synchronization Problem:
when I do connect(player1, &QMediaPlayer::positionChanged, player2, &QMediaPlayer::setPosition); the end user can see a little flickering
Yes, because you do the positioning over signals/slots for every frame I guess :-)
Maybe you could start the new video and somewhat later position it? To avoid the delays caused by loading the video. -
I forgot the write down the solution.
When I add a new video dynamically when other videos are running, I am not stopping videos. I set up a dynamic QTimer which works 2 times for synchroniation, and updates the posiitons just for 2 seconds, and then timer stops
