gstreamer gst-rtsp-server接受udpsrc (RTP)吗？

#include <gst/gst.h>
#include <gst/rtsp-server/rtsp-server.h>

static gboolean
message_cb (GstBus * bus, GstMessage * message, gpointer user_data)
{
  GMainLoop *loop = (GMainLoop *) user_data;
  switch (GST_MESSAGE_TYPE (message)) {
    case GST_MESSAGE_ERROR:{
      GError *err;
      gchar *debug;
      gst_message_parse_error (message, &err, &debug);
      g_print ("Error: %s\n", err->message);
      g_error_free (err);
      g_free (debug);
      g_main_loop_quit (loop);
      break;
    }
    default:
      break;
  }
  return TRUE;
}

int
main (int argc, char *argv[])
{
  GMainLoop *loop;
  GstRTSPServer *server;
  GstRTSPMountPoints *mounts;
  GstRTSPMediaFactory *factory;
  GstElement *pipeline;

  gst_init (&argc, &argv);

  loop = g_main_loop_new (NULL, FALSE);

  server = gst_rtsp_server_new ();
  mounts = gst_rtsp_server_get_mount_points (server);

  pipeline = gst_pipeline_new ("test-pipeline");
  GstElement *udpsrc = gst_element_factory_make ("udpsrc", "udpsrc");
  g_object_set (G_OBJECT (udpsrc), "port", 5000, NULL);
  GstElement *rtph264depay = gst_element_factory_make ("rtph264depay", "rtph264depay");
  GstElement *avdec_h264 = gst_element_factory_make ("avdec_h264", "avdec_h264");
  GstElement *autovideosink = gst_element_factory_make ("autovideosink", "autovideosink");

  gst_bin_add_many (GST_BIN (pipeline), udpsrc, rtph264depay, avdec_h264, autovideosink, NULL);
  gst_element_link_many (udpsrc, rtph264depay, avdec_h264, autovideosink, NULL);

  factory = gst_rtsp_media_factory_new ();
  gst_rtsp_media_factory_set_launch (factory, "( udpsrc port=5000 ! application/x-rtp, media=video, clock-rate=90000, encoding-name=H264 ! rtph264depay ! avdec_h264 ! autovideosink )");
  gst_rtsp_mount_points_add_factory (mounts, "/test", factory);

  gst_rtsp_server_attach (server, NULL);

  g_print ("Stream ready at rtsp://127.0.0.1:8554/test\n");

  g_main_loop_run (loop);

  gst_object_unref (server);
  g_main_loop_unref (loop);

  return 0;
}