[Development] Poor performance viewing a video stream

[Carlo A. Scarpato]

Hi all
i’m trying to realize a video player for ip cameras with QT5. I have
modified the examples in qt5-beta-2 source, to open the stream from
cameras, but i noticed very low perfomance comparated to the same
request made with vlc (on my PC Intel® Pentium® 4 CPU 3.20GHz 94%cpu vs
25%cpu via top). This with videographicsitem and customvideoitem
example. better with video example where the cpu il about 50% anyway
higher than vlc. There is a way to improve performance or do better this
work? I notice the with qt4 and phonon the performance was better.
Regards

PS: The stream was an rtsp h264 video from an IP cameras at
1280x720 at 25fps