Main Application is crashing

[vijayQt]

Hi,
In main application I am using Qlabel Widget to display video. I am using "repaint" to update my QLabel widget. while video running if I am trying to close main application, it's crashing.

Please advise me what is going wrong here?... Do I need to use threads or is there anyway to do it.

Thanks in advance

[wysota]

if I am trying to close main application

What other applications besides the "main application" are involved into the process?

[vijayQt]

My application requirement is, take local file (.avi, .mpg, etc...) and decode using libavcodec and display pixmap on widget. So I am using QLabel Widget to display the pixmap Image. Other than this I am using decoder function to decode the frames.

So I am using

while (1) {
QImage img;
Qpaint paint;
paint.begin();
paint.draw();
paint.end();
QLabel->setPixmap()
QLabel->repaint()
} to display continues frames.

Anything wrong here?... Please advice

Thanks

[wysota]

You are not allowing events to be processed anywhere. Your application can't do anything other than repaint the label.

[vijayQt]

Hi Wysota,
Above code is just a sudo code. I am able to play video using above sudo code.
But my problem is, while playing video if I am trying to close main window it's crashing. Why is it so?

Thanks

[nish]

did you tried to look at the backtrace?