Strange QMediaPlayer::setPosition() on Windows when play from URL

[nckm]

I try to play video file from URL.
For that i do like this:

QString fileName = "https://r5---sn-jvhnu5g-gv8l.googlevideo.com/videoplayback?........D4B58C1";
mediaPlayer.setMedia(QUrl(fileName));
mediaPlayer.play();

I use youtube MP4 URL (url gotten using youtube-dl util) . Playback starts normally but some issues on WIndows 8 and WIndows 10:

1. QMediaPlayer::bufferStatus() is always returns zero
2. QMediaPlayer::bufferStatusChanged() is never caled
3. after QMediaPlayer::setPosition() much forward NO LONGER player update frames, just nothing displayed. This is with long videos like 1-2 hours. Not possible to seek forward.

Interesting is that under Ubuntu Linux same QT app with gstreamer-ffpeg library - all is fine. I can setPosition() i see how bufferStatus() is changing after seek forward from 0% to 100%.. In Linux setPosition() forward is quite fine.

What to do?

[SGaist]

Hi and welcome to devnet,

That might come from the fact that the Windows backend and Linux backend doesn't use the same technologies.