I have added a bug to the Qt bugtracker: https://bugreports.qt-project.org/browse/QTBUG-38465
Am 19.04.2014 10:02, schrieb Michael: > Hi > > I'm using QT5.3 from git on an imx6 board. Multimedia playback > performance has greatly improved with this commit > (https://codereview.qt-project.org/#change,76764). Performance of > video playback is typically pretty much on par with a native gstreamer > pipe. > > However, this does not apply to RTSP streams. While the following > gstreamer pipe plays (nearly) perfectly on the commandline: > > gst-launch rtspsrc location=rtsp://axis-cam1/axis-media/media.amp ! > decodebin2 ! mfw_v4lsink sync=false > > Playing the same with Qt5 qml MediaPlayer drops lots of frames (about > 90% or more), although CPU usage is very low < 10%. > > Warning: "A lot of buffers are being dropped." > Warning: "A lot of buffers are being dropped." > Warning: "A lot of buffers are being dropped." > > Also, playback takes up to 5 seconds to start, whereas the cmdline > nearly start immediately. > > I can get a similar, although not as bad, experience when using > sync=true on the mfw_v4lsink element. Not sure though, if this is > relevant. > > Anybody knows how best to debug or even to solve this problem? > > Thanks > > Michael > > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest
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