GstPipeline and bus call

[killerrats]

Looks like your using c++ so this is what is in c++. maybe this will give you
at least a start. maybe even work. I don't understand what your saying is
wrong. if its not playing or just doesn't quit after the video is done or
what but this might work for a template for ya.

#include <gst/gst.h>
#include <iostream>

/************* 
global values 
*****    ***********/

GstElement *pipeline;
GMainLoop *loop;
GstBus *bus;
GstMessage* msg;
GstStateChangeReturn ret;

#define GST_PLAYER_UDP "udpsrc port=5555 caps=\"application/x-rtp,
media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264,
payload=(int)96\"\ 
                ! rtph264depay ! decodebin ! videoconvert ! autovideosink"

static gboolean bus_cb (GstBus *bus, GstMessage *msg, gpointer *data);
				
int main()
{
	//debug level 1,2,3,4,5
	gst_debug_set_threshold_from_string("*:3",TRUE);

	/* Initialize GStreamer */
  gst_init (NULL,NULL);
  
  /* Build the pipeline */
  pipeline = gst_parse_launch (GST_PLAYER_UDP, NULL);
  bus = gst_element_get_bus (pipeline);

  /* Start playing */
  ret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
  if (ret == GST_STATE_CHANGE_FAILURE) {
    g_printerr ("Unable to set the pipeline to the playing state.\n");
    gst_object_unref (pipeline);
    return -1;
  }

  loop = g_main_loop_new (NULL, FALSE);

  gst_bus_add_signal_watch (bus);
  g_signal_connect (bus, "message", G_CALLBACK (bus_cb),NULL);

  g_main_loop_run (loop);

  /* Free resources */
  g_main_loop_unref (loop);
  gst_object_unref (bus);
  gst_element_set_state (pipeline, GST_STATE_NULL);
  gst_object_unref (pipeline);
  
  return 0;
} 


/********************** 
    bus method
******************/
gboolean bus_cb (GstBus *bus, GstMessage *msg, gpointer *data) {

  switch (GST_MESSAGE_TYPE (msg)) {
	case GST_MESSAGE_ERROR: {
      GError *err;
      gchar *debug;

      gst_message_parse_error (msg, &err, &debug);
      g_print ("Error: %s\n", err->message);
      g_error_free (err);
      g_free (debug);

      gst_element_set_state (pipeline, GST_STATE_READY);
      g_main_loop_quit (loop);
      return FALSE;
    }
    case GST_MESSAGE_EOS:
      /* end-of-stream */
      gst_element_set_state (pipeline, GST_STATE_READY);
      g_main_loop_quit (loop);
      return FALSE;
    
    default:
      /* Unhandled message */
      break;
    }
      return TRUE;
}



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