C++ (Cpp) totem_gst_message_print примеры использования

Пример #1

Файл: totem-audio-preview.c Проект: Avinashkumarsharma/totemplayer

static GstBusSyncReply
error_handler (GstBus *bus,
	       GstMessage *message,
	       GstElement *play)
{
	GstMessageType msg_type;

	msg_type = GST_MESSAGE_TYPE (message);
	switch (msg_type) {
	case GST_MESSAGE_ERROR:
		totem_gst_message_print (message, play, "totem-audio-preview-error");
		exit (1);
	case GST_MESSAGE_EOS:
		exit (0);

	case GST_MESSAGE_ASYNC_DONE:
	case GST_MESSAGE_UNKNOWN:
	case GST_MESSAGE_WARNING:
	case GST_MESSAGE_INFO:
	case GST_MESSAGE_TAG:
	case GST_MESSAGE_BUFFERING:
	case GST_MESSAGE_STATE_CHANGED:
	case GST_MESSAGE_STATE_DIRTY:
	case GST_MESSAGE_STEP_DONE:
	case GST_MESSAGE_CLOCK_PROVIDE:
	case GST_MESSAGE_CLOCK_LOST:
	case GST_MESSAGE_NEW_CLOCK:
	case GST_MESSAGE_STRUCTURE_CHANGE:
	case GST_MESSAGE_STREAM_STATUS:
	case GST_MESSAGE_APPLICATION:
	case GST_MESSAGE_ELEMENT:
	case GST_MESSAGE_SEGMENT_START:
	case GST_MESSAGE_SEGMENT_DONE:
	case GST_MESSAGE_DURATION_CHANGED:
	case GST_MESSAGE_LATENCY:
	case GST_MESSAGE_ASYNC_START:
	case GST_MESSAGE_REQUEST_STATE:
	case GST_MESSAGE_STEP_START:
	case GST_MESSAGE_QOS:
	case GST_MESSAGE_PROGRESS:
	case GST_MESSAGE_TOC:
	case GST_MESSAGE_RESET_TIME:
	case GST_MESSAGE_STREAM_START:
	case GST_MESSAGE_ANY:
#if GST_CHECK_VERSION (1, 1, 3)
	case GST_MESSAGE_NEED_CONTEXT:
	case GST_MESSAGE_HAVE_CONTEXT:
#endif
	default:
		/* Ignored */
		;;
	}

	return GST_BUS_PASS;
}

Пример #2

Файл: totem-gallery-thumbnailer.c Проект: GNOME/totem

static gboolean
thumb_app_start (ThumbApp *app)
{
	GstBus *bus;
	GstMessageType events;
	gboolean terminate = FALSE;
	gboolean async_received = FALSE;

	gst_element_set_state (app->play, GST_STATE_PAUSED);
	bus = gst_element_get_bus (app->play);
	events = GST_MESSAGE_ASYNC_DONE | GST_MESSAGE_ERROR;

	while (terminate == FALSE) {
		GstMessage *message;
		GstElement *src;

		message = gst_bus_timed_pop_filtered (bus,
		                                      GST_CLOCK_TIME_NONE,
		                                      events);

		src = (GstElement*)GST_MESSAGE_SRC (message);

		switch (GST_MESSAGE_TYPE (message)) {
		case GST_MESSAGE_ASYNC_DONE:
			if (src == app->play) {
				async_received = TRUE;
				terminate = TRUE;
			}
			break;
		case GST_MESSAGE_ERROR:
			totem_gst_message_print (message, app->play, "totem-video-thumbnailer-error");
			terminate = TRUE;
			break;

		case GST_MESSAGE_UNKNOWN:
		case GST_MESSAGE_EOS:
		case GST_MESSAGE_WARNING:
		case GST_MESSAGE_INFO:
		case GST_MESSAGE_TAG:
		case GST_MESSAGE_BUFFERING:
		case GST_MESSAGE_STATE_CHANGED:
		case GST_MESSAGE_STATE_DIRTY:
		case GST_MESSAGE_STEP_DONE:
		case GST_MESSAGE_CLOCK_PROVIDE:
		case GST_MESSAGE_CLOCK_LOST:
		case GST_MESSAGE_NEW_CLOCK:
		case GST_MESSAGE_STRUCTURE_CHANGE:
		case GST_MESSAGE_STREAM_STATUS:
		case GST_MESSAGE_APPLICATION:
		case GST_MESSAGE_ELEMENT:
		case GST_MESSAGE_SEGMENT_START:
		case GST_MESSAGE_SEGMENT_DONE:
		case GST_MESSAGE_DURATION_CHANGED:
		case GST_MESSAGE_LATENCY:
		case GST_MESSAGE_ASYNC_START:
		case GST_MESSAGE_REQUEST_STATE:
		case GST_MESSAGE_STEP_START:
		case GST_MESSAGE_QOS:
		case GST_MESSAGE_PROGRESS:
		case GST_MESSAGE_TOC:
		case GST_MESSAGE_RESET_TIME:
		case GST_MESSAGE_STREAM_START:
		case GST_MESSAGE_ANY:
		case GST_MESSAGE_NEED_CONTEXT:
		case GST_MESSAGE_HAVE_CONTEXT:
		default:
			/* Ignore */
			;;
		}

		gst_message_unref (message);
	}

	gst_object_unref (bus);

	if (async_received) {
		/* state change succeeded */
		GST_DEBUG ("state change to %s succeeded", gst_element_state_get_name (GST_STATE_PAUSED));
	}

	return async_received;
}