When playing RTSP stream "video-dimensions-changed" event is triggered only once reporting dimensions of 0 x 0. No further events triggered.

Following streams (and any other I've tried) can be used to reproduce the problem:

rtsp://mpv.cdn3.bigCDN.com:554/bigCDN/definst/mp4:bigbuckbunnyiphone_400.mp4

This was used as base code:

https://github.com/sdroege/gst-player/blob/master/android/app/src/main/jni/player.c


with none modification, and call back was set with:

            mGstMediaPlayer = new Player(); 
            mGstMediaPlayer.setVideoDimensionsChangedListener(new Player.VideoDimensionsChangedListener() { 
                public void videoDimensionsChanged(Player player, final int width, final int height) { 
                    Log.d(TAG, "videoDimensionsChanged: width=" + width + " height=" + height); 
                } 
            }); 


which reports dimensions of 0 x 0.