gst_rtp_jitter_buffer_loop Issue

kolanchi kolanchi at fossilshale.com
Mon Apr 2 21:44:57 PDT 2012


Hello All,

I am prototyping client server streaming using Gstreamer.
 Using gst-launch it works fine.

I am constructing same elements  in my code as follows : 


      pipeline = gst_pipeline_new ("rtsp-video-player");
        source   = gst_element_factory_make ("rtspsrc","rtsp-src");
        depay  = gst_element_factory_make ("rtph264depay","h264-depay");
        decoder  = gst_element_factory_make ("ffdec_h264","video-decoder");
        sink     = gst_element_factory_make ("autovideosink",
"video-output");

        if (!pipeline || !source || !depay || !decoder || !sink) {
                g_printerr ("One element could not be created. Exiting.\n");
                return -1;
        }

        /* we add all elements into the pipeline */
        gst_bin_add_many (GST_BIN (pipeline),
                        source,depay, decoder, sink, NULL);

 
        gst_element_link_many (source,depay,decoder,sink,NULL);

        g_signal_connect (source, "pad-added", G_CALLBACK (on_pad_added),
depay);


  static void
on_pad_added (GstElement *element,
                GstPad     *pad,
                gpointer    data)
{
        gchar *name;
        GstPad *sinkpad;
        GstElement *depay = (GstElement *) data;
        GstElement *fakesink;
        name = gst_pad_get_name (pad);
        printf("  Dynamic pad %s\n",name);
        fakesink     = gst_element_factory_make ("fakesink",
"video-output");

        if(strncmp("recv_rtp_src_1",name,14)== 0)
        {
                printf("linking pad\n");
                sinkpad = gst_element_get_static_pad (depay, "sink");
                printf("Dynamic pad created linking source to %s\n",name);
                gst_pad_link (pad, sinkpad);

                gst_object_unref (sinkpad);
        }
        if(strncmp("recv_rtp_src_0",name,14)== 0)
        {
                printf("linking pad\n");
                sinkpad = gst_element_get_static_pad (fakesink, "sink");
                printf("Dynamic pad created linking source to %s\n",name);
                gst_pad_link (pad, sinkpad);

                gst_object_unref (sinkpad);
        }

}

while running my application I am facing gst_rtp_jitter_buffer_loop is going
on while..

below i am mentioning the error message.


01660460_97
0:00:02.873210956  2169  0x958c2a8 INFO                GST_PADS
gstpad.c:1941:gst_pad_link_prepare: trying to link
rtsp-src:recv_rtp_src_1_1101660460_97 and h264-depay:sink
0:00:02.873302681  2169  0x958c2a8 INFO                GST_PADS
gstpad.c:2124:gst_pad_link_full: linked
rtsp-src:recv_rtp_src_1_1101660460_97 and
h264-depay:sink, successful
0:00:02.873492861  2169  0x958c2a8 INFO               GST_EVENT
gstevent.c:599:gst_event_new_new_segment_full: creating newsegment update 0,
rate
1.000000, format GST_FORMAT_TIME, start 0:00:00.000000000, stop
0:06:49.791992187,
position 0:00:00.000000000
0:00:02.873899696  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000
0:00:02.954846776  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000
0:00:02.955177936  2169  0x95601a0 INFO                 basesrc
gstbasesrc.c:2511:gst_base_src_loop:<udpsrc1> pausing after gst_pad_push() =
not-linked
0:00:02.955233651  2169  0x95601a0 WARN                 basesrc
gstbasesrc.c:2574:gst_base_src_loop:<udpsrc1> error: Internal data flow
error.
0:00:02.955258861  2169  0x95601a0 WARN                 basesrc
gstbasesrc.c:2574:gst_base_src_loop:<udpsrc1> error: streaming task paused,
reason
not-linked (-1)
0:00:02.955313831  2169  0x95601a0 INFO        GST_ERROR_SYSTEM
gstelement.c:1865:gst_element_message_full:<udpsrc1> posting message:
Internal data
flow error.
0:00:02.955361091  2169  0x95601a0 INFO        GST_ERROR_SYSTEM
gstelement.c:1888:gst_element_message_full:<udpsrc1> posted error message:
Internal
data flow error.
0:00:02.955444806  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000
0:00:03.037995976  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000
0:00:03.038312117  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000
0:00:03.038715702  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000
0:00:03.121137613  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000
0:00:03.121465547  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000
0:00:03.205265284  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000
0:00:03.205596654  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000
0:00:03.288398519  2169  0x958c2a8 INFO      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1603:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0>
buffering,
elapsed 0:00:01.541666666 estimated_eos 0:06:49.791992187 left
0:06:48.250325521
delay 0:00:02.000000000


1.what was the reason the gst_rtp_jitter_buffer_loop is going continous
loop?.
2.please guide me how to solve this issue.

I am waiting your favourably reply

Thanks in advance
Kolanchi


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