How to play YUV video in Qt4?

Question

I want to play YUV video sequence by using Qt. Now I am using QPixmap, by using DrawPixel on QPixmap pixel by pixel. However, it can't play the video in real-time. How can I do to improve the speed?

Answer 1

Pixel by pixel is about the slowest method to create a picture. It would improve performance a lot if you processed the image data before and used QPixmap's loadFromData() method.

Answer 2

Did you try using the Phonon classes like VideoPlayer?

Take a look at this:

http://doc.trolltech.com/4.6/phonon-videoplayer.html