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examples: add example RTP stats
Add some more RTP examples for how to retrieve RTP stats in a receiver.
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@ -55,6 +55,48 @@
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* from another machine, change this address. */
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#define DEST_HOST "127.0.0.1"
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/* print the stats of a source */
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static void
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print_source_stats (GObject * source)
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{
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GstStructure *stats;
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gchar *str;
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g_return_if_fail (source != NULL);
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/* get the source stats */
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g_object_get (source, "stats", &stats, NULL);
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/* simply dump the stats structure */
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str = gst_structure_to_string (stats);
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g_print ("source stats: %s\n", str);
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gst_structure_free (stats);
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g_free (str);
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}
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/* will be called when gstrtpbin signals on-ssrc-active. It means that an RTCP
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* packet was received from another source. */
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static void
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on_ssrc_active_cb (GstElement * rtpbin, guint sessid, guint ssrc,
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GstElement * depay)
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{
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GObject *session, *isrc, *osrc;
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g_print ("got RTCP from session %u, SSRC %u\n", sessid, ssrc);
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/* get the right session */
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g_signal_emit_by_name (rtpbin, "get-internal-session", sessid, &session);
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/* get the internal source (the SSRC allocated to us, the receiver */
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g_object_get (session, "internal-source", &isrc, NULL);
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print_source_stats (isrc);
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/* get the remote source that sent us RTCP */
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g_signal_emit_by_name (session, "get-source-by-ssrc", ssrc, &osrc);
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print_source_stats (osrc);
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}
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/* will be called when rtpbin has validated a payload that we can depayload */
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static void
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pad_added_cb (GstElement * rtpbin, GstPad * new_pad, GstElement * depay)
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@ -174,6 +216,10 @@ main (int argc, char *argv[])
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* user_data so that we can link to it. */
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g_signal_connect (rtpbin, "pad-added", G_CALLBACK (pad_added_cb), audiodepay);
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/* give some stats when we receive RTCP */
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g_signal_connect (rtpbin, "on-ssrc-active", G_CALLBACK (on_ssrc_active_cb),
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audiodepay);
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/* set the pipeline to playing */
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g_print ("starting receiver pipeline\n");
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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