gstreamer pipeline problem

gstlog.txt

0:00:00.229955611  6344 0xb640c630 WARN         rtpjitterbuffer rtpjitterbuffer.c:185:rtp_jitter_buffer_set_clock_rate: Clock rate changed from 0 to 90000
0:00:00.221349753  6344 0xb642a230 INFO        GST_ELEMENT_PADS gstelement.c:894:gst_element_get_static_pad: no such pad 'sink' in element "fakesrc0"
0:00:00.231708351  6344 0xb642a230 FIXME                default gstutils.c:3625:gst_pad_create_stream_id_internal:<fakesrc0:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id
0:00:00.263849644  6344 0xb642a230 INFO               GST_EVENT gstevent.c:709:gst_event_new_segment: creating segment event bytes segment start=0, stop=-1, rate=1.000000, applied_rate=1.000000, flags=0x00, time=0, base=0, position 0, duration -1
0:00:00.264007764  6344 0xb642a230 INFO                 basesrc gstbasesrc.c:2778:gst_base_src_loop:<fakesrc0> marking pending DISCONT
0:00:00.264625162  6344 0xb642a230 INFO                 basesrc gstbasesrc.c:2674:gst_base_src_loop:<fakesrc0> pausing after gst_base_src_get_range() = eos
0:00:00.265150649  6344 0xb642a230 INFO                    task gsttask.c:300:gst_task_func:<fakesrc0:src> Task going to paused
0:00:00.288514275  6344 0xb5a0b150 INFO               GST_EVENT gstevent.c:628:gst_event_new_caps: creating caps event application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, sprop-parameter-sets=(string)"Z0LAFdkBYJbARAAAAwAEAAADAHo8WLkg\,aMuMsg\=\=", a-tool=(string)GStreamer, a-type=(string)broadcast, clock-base=(uint)144125399, seqnum-base=(uint)35027, npt-start=(guint64)0, play-speed=(double)1, play-scale=(double)1
0:00:00.288612891  6344 0xb5a0b150 INFO        GST_ELEMENT_PADS gstelement.c:646:gst_element_add_pad:<rtpptdemux0> adding pad 'src_96'
0:00:00.288702847  6344 0xb5a0b150 INFO                GST_PADS gstpad.c:2086:gst_pad_link_prepare: trying to link rtpptdemux0:src_96 and recv_rtp_src_0_974192980_96:proxypad4
0:00:00.288729387  6344 0xb5a0b150 INFO                GST_PADS gstpad.c:2288:gst_pad_link_full: linked rtpptdemux0:src_96 and recv_rtp_src_0_974192980_96:proxypad4, successful
0:00:00.288746149  6344 0xb5a0b150 INFO               GST_EVENT gstevent.c:1313:gst_event_new_reconfigure: creating reconfigure event
0:00:00.288805095  6344 0xb5a0b150 INFO        GST_ELEMENT_PADS gstelement.c:646:gst_element_add_pad:<manager> adding pad 'recv_rtp_src_0_974192980_96'
0:00:00.288875215  6344 0xb5a0b150 INFO                GST_PADS gstpad.c:2086:gst_pad_link_prepare: trying to link manager:recv_rtp_src_0_974192980_96 and recv_rtp_src_0_974192980_96:proxypad5
0:00:00.288895330  6344 0xb5a0b150 INFO                GST_PADS gstpad.c:2288:gst_pad_link_full: linked manager:recv_rtp_src_0_974192980_96 and recv_rtp_src_0_974192980_96:proxypad5, successful
0:00:00.288911533  6344 0xb5a0b150 INFO               GST_EVENT gstevent.c:1313:gst_event_new_reconfigure: creating reconfigure event
0:00:00.288944777  6344 0xb5a0b150 INFO        GST_ELEMENT_PADS gstelement.c:646:gst_element_add_pad:<rtspsrc> adding pad 'recv_rtp_src_0_974192980_96'
0:00:00.288979977  6344 0xb5a0b150 INFO                GST_PADS gstpad.c:3637:gst_pad_peer_query:<rtspsrc:recv_rtp_src_0_974192980_96> pad has no peer
0:00:00.289008473  6344 0xb5a0b150 INFO                GST_PADS gstpad.c:3637:gst_pad_peer_query:<rtspsrc:recv_rtp_src_0_974192980_96> pad has no peer
0:00:00.289044511  6344 0xb5a0b150 INFO                    task gsttask.c:300:gst_task_func:<rtpjitterbuffer0:src> Task going to paused
0:00:00.347709612  6344 0xb640c630 INFO                 basesrc gstbasesrc.c:2791:gst_base_src_loop:<udpsrc0> pausing after gst_pad_push() = not-linked
0:00:00.347766602  6344 0xb640c630 WARN                 basesrc gstbasesrc.c:2871:gst_base_src_loop:<udpsrc0> error: Internal data flow error.
0:00:00.347782247  6344 0xb640c630 WARN                 basesrc gstbasesrc.c:2871:gst_base_src_loop:<udpsrc0> error: streaming task paused, reason not-linked (-1)