C++ (Cpp) gst_element_is_locked_state示例

示例#1

文件： gstdebugutils.c 项目： BigBrother-International/gstreamer

static gchar *
debug_dump_get_element_state (GstElement * element)
{
  gchar *state_name = NULL;
  const gchar *state_icons = "~0-=>";
  GstState state = GST_STATE_VOID_PENDING, pending = GST_STATE_VOID_PENDING;

  gst_element_get_state (element, &state, &pending, 0);
  if (pending == GST_STATE_VOID_PENDING) {
    gboolean is_locked = gst_element_is_locked_state (element);
    state_name = g_strdup_printf ("\\n[%c]%s", state_icons[state],
        (is_locked ? "(locked)" : ""));
  } else {
    state_name = g_strdup_printf ("\\n[%c] -> [%c]", state_icons[state],
        state_icons[pending]);
  }
  return state_name;
}

示例#2

文件： RTSPserverGate.cpp 项目： 119-org/TND

static gboolean stop_data(GstElement *source)
    {

    if (gst_element_is_locked_state(source) == FALSE)
	{
	if (gst_element_set_locked_state(source, TRUE) == TRUE)
	    {
	    std::clog << "##### LOCK OK" << std::endl;
	    std::clog << "##### LOCK  NOW" << std::endl;
	    GstState rtspstate;
	    gst_element_get_state(source, &rtspstate, NULL, GST_CLOCK_TIME_NONE);
	    switch (rtspstate)
		{
	    case GST_STATE_PLAYING:
		gst_element_set_state(source, GST_STATE_PAUSED);

		gst_element_set_locked_state(source, FALSE);
		break;
	    case GST_STATE_PAUSED:
		gst_element_set_state(source, GST_STATE_READY);

		gst_element_set_locked_state(source, FALSE);
		break;
	    case GST_STATE_READY:
		gst_element_set_state(source, GST_STATE_NULL);

		gst_element_set_locked_state(source, FALSE);
		break;
	    case GST_STATE_NULL:
		gst_object_unref(GST_OBJECT(source));
		g_idle_remove_by_data(source);
		break;

		}

	    std::clog << "########## State: " << gst_element_state_get_name(
		    rtspstate) << std::endl;
	    //    gst_object_unref(GST_OBJECT(source));
	    }
	}

    }