[Development] Poor performance viewing a video stream

[Carlo A. Scarpato]

The question was wrong or is the wrong mailing-list?


Il giorno ven, 16/11/2012 alle 11.01 +0100, Carlo A. Scarpato ha
scritto:
> 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
> 
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