I installed Qt creator(Qt5) and its examples on Raspberry pi 2 B Model. I'm running Raspbian Jessie on it. I tried to Run a Video player example but I end up with an error which was as follows:
Starting /usr/lib/arm-linux-gnueabihf/qt5/examples/multimediawidgets/build-player-Desktop-Debug/player... libEGL warning: GLX/DRI2 is not supported libEGL warning: DRI2: failed to authenticate
(player:841): GStreamer-CRITICAL **: gst_object_ref_sink: assertion 'GST_IS_OBJECT (object)' failed GStreamer; Unable to play - "file:///home/pi/Desktop/test_video.mp4" GStreamer; Unable to play - "file:///home/pi/Desktop/test_video.mp4" Warning: "No decoder available for type 'video/quicktime, variant=(string)iso'."
Please let me know how to fix these "Gstreamer" and "No decoder" things.