Gstreamer RTSP src element name

[Tarun Tej K]

I am not sure, but can you try without having the queues? Can you please
see how it works when link the pads with audioDepay and videoDepay directly?

Tarun

On 24-Jan-2017 4:31 PM, "rajvik" <kamdar.rajvi at gmail.com> wrote:

Thank you so much for the insights. I did incorporate what you asked me to,
but still I am getting error:
*0:00:00.602211533  2055   0x188380 WARN                 basesrc
gstbasesrc.c:2933:gst_base_src_loop:<udpsrc3> error: Internal data flow
error.
0:00:00.618291500  2055   0x188380 WARN                 basesrc
gstbasesrc.c:2933:gst_base_src_loop:<udpsrc3> error: streaming task paused,
reason not-linked (-1)
0:00:00.638866649  2055   0x188430 WARN                 basesrc
gstbasesrc.c:2933:gst_base_src_loop:<udpsrc0> error: Internal data flow
error.
0:00:00.655050073  2055   0x188430 WARN                 basesrc
gstbasesrc.c:2933:gst_base_src_loop:<udpsrc0> error: streaming task paused,
reason not-linked (-1)*

Please find the below code snippet:

*Taken audioQueue and VideoQueue as global variables and find the below cb
function: *

static void onPadAdded(GstElement *element, GstPad *pad, gpointer data)
{

        GstCaps *caps;
        const char *name;
        char *capsName;
        caps = gst_pad_get_current_caps(pad);
        GstStructure *str = gst_caps_get_structure(caps, 0);
        name = gst_structure_get_name(str);
        g_debug("name of caps struct string: %s", name);
        capsName = gst_caps_to_string(caps);
        g_debug("name of caps string: %s", capsName);

        if (g_str_has_prefix(capsName,"audio"))
        {
                GstPad *dynamic_pad = gst_element_get_static_pad(audioQueue,
"sink");
                gst_pad_link(pad, dynamic_pad);
        }

        else if (g_str_has_prefix(capsName, "video"))
        {
                GstPad *video_dynamic_pad =
gst_element_get_static_pad(videoQueue, "sink");
                gst_pad_link(pad, video_dynamic_pad);
        }
        g_free(capsName);

}

*Following is the g_signal_connect operation:*

        gst_bin_add(GST_BIN(pipeline), source);
        gst_bin_add_many(GST_BIN(pipeline),
                        audioQueue, audioDepay, audioParse, audioDecode,
audioConvert, audioResample, audioSink,
                        videoQueue, videoDepay, videoParser, videoDecode,
videoConvert, videoScale, videoSink, NULL);

        if (!gst_element_link_many(audioQueue, audioDepay, NULL ))
        {
                g_printerr("Cannot link audioqueue  and audioDepay \n");
                return 0;
        }
        if (!gst_element_link_many(audioParse, audioDecode,NULL ))
        {
                g_printerr("Cannot link audioParse and audiodecode \n");
                return 0;
        }
        if (!gst_element_link_many(audioConvert, audioResample, audioSink,
NULL ))
        {
                g_printerr("Cannot link audioConvert, audioParse, audioSink
\n");
                return 0;
        }


        /*Linking filter element to videoScale and videoSink */
        link_ok = gst_element_link_filtered(videoScale,videoSink,
capsFilter);
        gst_caps_unref (capsFilter);
        if (!link_ok) {
                g_warning ("Failed to link element1 and element2!");
        }
        /* Linking video elements internally */
        if (!gst_element_link_many(videoQueue, videoDepay, NULL))
        {
                g_printerr("Cannot link videoQueue and videoDepay \n");
                return 0;
        }
        if (!gst_element_link_many( videoParser, videoDecode, videoConvert,
NULL))
        {
                g_printerr("Cannot link videoParser, videoDecode,
videoConvert \n");
                return 0;
        }
        g_signal_connect(source, "pad-added", G_CALLBACK(onPadAdded), NULL);




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