Hi all: 
I am using gstreamer to transmit h.264 video stream,My pipeline is: 

filesrc(test.264) --> rh264parse --> rtph264pay --> udpsink 

the Python code is as follow.I use an player to accept the video,But about 1-3S after PLAYING,it stopped.I catch the packet by wireshark, It show that after 1-3S,it stop send packets,What is the problem????? Please help me!!! 

PYTHON CODE: 


class exchange_stream(threading.Thread): 
    def __init__(self,port_v): 
        threading.Thread.__init__(self) 

        self.pipeline = Gst.Pipeline() 

        self.filesrc =  Gst.ElementFactory.make('filesrc', 'filesrc') 
        self.pipeline.add(self.filesrc) 
        self.filesrc.set_property('location','es.264') 

        self.queue = Gst.ElementFactory.make('queue','queue') 
        self.pipeline.add(self.queue) 

        self.h264parse  = Gst.ElementFactory.make('h264parse','h264parse') 
        self.pipeline.add(self.h264parse) 

        self.rtph264pay  = Gst.ElementFactory.make('rtph264pay','rtph264pay') 
        self.rtph264pay.set_property('pt',111) 
        self.pipeline.add(self.rtph264pay) 

        self.udpsink = Gst.ElementFactory.make('udpsink','appsink') 
        self.pipeline.add(self.udpsink) 
        self.udpsink.set_property('host','10.10.1.151') 
        self.udpsink.set_property('port',port_v) 
        self.udpsink.set_property('sync',False) 
        self.filesrc.link(self.queue) 
        self.queue.link(self.h264parse) 
        self.h264parse.link(self.rtph264pay) 
        self.rtph264pay.link(self.udpsink) 

        self.pipeline.set_state(Gst.State.PLAYING) 
        self.mainloop = GObject.MainLoop() 
        self.mainloop.run() 
And i capture the packages by wireshak,I find that 'timestamps' is all the same.