move old example to tests/examples/volume/volune.c

[platform/upstream/gstreamer.git] / tests / examples / volume / volume.c

diff --git a/gst/volume/demo.c b/tests/examples/volume/volume.c
similarity index 73%
rename from gst/volume/demo.c
rename to tests/examples/volume/volume.c
index 802c21c..5c37e54 100644 (file)
--- a/gst/volume/demo.c
+++ b/tests/examples/volume/volume.c
@@ -1,6 +1,6 @@
 /* GStreamer
  *
- * demo.c: sample application to change the volume of a pipeline
+ * volume.c: sample application to change the volume of a pipeline
  *
  * Copyright (C) <2004> Thomas Vander Stichele <thomas at apestaart dot org>
  *
@@ -85,6 +85,34 @@ setup_gui (GstElement * volume)
   gtk_widget_show_all (GTK_WIDGET (window));
 }
 
+static void
+message_received (GstBus * bus, GstMessage * message, GstPipeline * pipeline)
+{
+  const GstStructure *s;
+
+  s = gst_message_get_structure (message);
+  g_print ("message from \"%s\" (%s): ",
+      GST_STR_NULL (GST_ELEMENT_NAME (GST_MESSAGE_SRC (message))),
+      gst_message_type_get_name (GST_MESSAGE_TYPE (message)));
+  if (s) {
+    gchar *sstr;
+
+    sstr = gst_structure_to_string (s);
+    g_print ("%s\n", sstr);
+    g_free (sstr);
+  } else {
+    g_print ("no message details\n");
+  }
+}
+
+static void
+eos_message_received (GstBus * bus, GstMessage * message,
+    GstPipeline * pipeline)
+{
+  message_received (bus, message, pipeline);
+  gtk_main_quit ();
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -92,6 +120,7 @@ main (int argc, char *argv[])
   GstElement *pipeline = NULL;
   GError *error = NULL;
   GstElement *volume;
+  GstBus *bus;
 
   gst_init (&argc, &argv);
   gtk_init (&argc, &argv);
@@ -111,14 +140,24 @@ main (int argc, char *argv[])
     return 1;
   }
 
+  /* setup message handling */
+  bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
+  gst_bus_add_signal_watch_full (bus, G_PRIORITY_HIGH);
+  g_signal_connect (bus, "message::error", (GCallback) message_received,
+      pipeline);
+  g_signal_connect (bus, "message::warning", (GCallback) message_received,
+      pipeline);
+  g_signal_connect (bus, "message::eos", (GCallback) eos_message_received,
+      pipeline);
+
   /* setup GUI */
   setup_gui (volume);
 
   /* go to main loop */
   gst_element_set_state (pipeline, GST_STATE_PLAYING);
-  gst_bus_poll (gst_element_get_bus (pipeline),
-      GST_MESSAGE_EOS | GST_MESSAGE_ERROR, -1);
+  gtk_main ();
   gst_element_set_state (pipeline, GST_STATE_NULL);
+  gst_object_unref (pipeline);
 
   return 0;
 }