I am stuck for a month with a video example given in Qt Video Overview. I tried that code, but I only got a blank square (QWidget). I am using GStreamer0.10 for media playback over Qt5. I also play...

As I can see in Qt6 no more Multimedia API. Am I right? Is it correct that in Qt6 for such simple task as playing sound I should look at third-party libraries now?

I am trying to run one of qt sample apps without any modification. It is called player and it is a multimedia widget demonstration. My system is Ubuntu 16.04 64bit. When I try to play a video, I se...

I am trying to overlay some graphics(QtGraphicsView) on top of video player(QVideoWidget). i have already tried setting QtGraphicsView subclass stylesheets to transparent and background brush and n...

What exactly has to be done to provide custom source of frames for VideoOutput QML object? Does VideoOuput itself provide an instance of QAbstractVideoSurface class to the "source"? The Qt5 docum...

What I want to do is to get video frame at some time (for example at 20 sec). I know I could do something like this - rewind video and pause it: QMediaPlayer* player = new QMediaPlayer; ... player...

I'm writing a Video Player with Qt5::QMediaPlayer to play randomly some videos for a randomly duration as this: int main(int argc, char *argv[]) { QApplication a(argc, argv); QMediaPlaylist* p...

I have downloaded qt-everywhere-opensource-src-5.4.1 and build and installed static. Next i built QMultimedia and installed. I get "Unknown module(s) in QT: multimedia" from the .pro when includin...

I need to play back a custom AVI file that contains a classic video stream, an audio stream but also a custom data stream. The custom stream contains data that is visualized by some custom widgets...

I am trying to run the basic example from the QAudioDeviceInfo class reference, but Qt is not finding a default audio device. Running this code shows no output: foreach (const QAudioDeviceInfo &a...