Next big merge.

[platform/upstream/gstreamer.git] / gst / gstpipeline.c

diff --git a/gst/gstpipeline.c b/gst/gstpipeline.c
index f7eedee..6aec13f 100644 (file)
--- a/gst/gstpipeline.c
+++ b/gst/gstpipeline.c
@@ -61,6 +61,9 @@ static void gst_pipeline_set_property (GObject * object, guint prop_id,
 static void gst_pipeline_get_property (GObject * object, guint prop_id,
     GValue * value, GParamSpec * pspec);
 
+static GstBusSyncReply pipeline_bus_handler (GstBus * bus, GstMessage * message,
+    GstPipeline * pipeline);
+
 static GstClock *gst_pipeline_get_clock_func (GstElement * element);
 static GstElementStateReturn gst_pipeline_change_state (GstElement * element);
 
@@ -135,9 +138,7 @@ gst_pipeline_init (GTypeInstance * instance, gpointer g_class)
 {
   GstScheduler *scheduler;
   GstPipeline *pipeline = GST_PIPELINE (instance);
-
-  /* pipelines are managing bins */
-  GST_FLAG_SET (pipeline, GST_BIN_FLAG_MANAGER);
+  GstBus *bus;
 
   /* get an instance of the default scheduler */
   scheduler = gst_scheduler_factory_make (NULL, GST_ELEMENT (pipeline));
@@ -150,6 +151,16 @@ gst_pipeline_init (GTypeInstance * instance, gpointer g_class)
         "Are you sure you have a registry ?\n"
         "Run gst-register as root if you haven't done so yet.", name);
   }
+  bus = g_object_new (gst_bus_get_type (), NULL);
+  gst_bus_set_sync_handler (bus,
+      (GstBusSyncHandler) pipeline_bus_handler, pipeline);
+  pipeline->eosed = NULL;
+  pipeline->delay = DEFAULT_DELAY;
+  pipeline->play_timeout = DEFAULT_PLAY_TIMEOUT;
+  /* we are our own manager */
+  GST_ELEMENT_MANAGER (pipeline) = pipeline;
+  gst_element_set_bus (GST_ELEMENT (pipeline), bus);
+  gst_element_set_scheduler (GST_ELEMENT (pipeline), scheduler);
 }
 
 static void
@@ -205,6 +216,103 @@ gst_pipeline_get_property (GObject * object, guint prop_id,
   GST_UNLOCK (pipeline);
 }
 
+static gboolean
+is_eos (GstPipeline * pipeline)
+{
+  GstIterator *sinks;
+  gboolean result = TRUE;
+  gboolean done = FALSE;
+
+  sinks = gst_bin_iterate_sinks (GST_BIN (pipeline));
+  while (!done) {
+    gpointer data;
+
+    switch (gst_iterator_next (sinks, &data)) {
+      case GST_ITERATOR_OK:
+      {
+        GstElement *element = GST_ELEMENT (data);
+        GList *eosed;
+        GstElementState state, pending;
+        GstElementStateReturn complete;
+        gchar *name;
+
+        complete = gst_element_get_state (element, &state, &pending, NULL);
+        name = gst_element_get_name (element);
+
+        if (complete == GST_STATE_ASYNC) {
+          GST_DEBUG ("element %s still performing state change", name);
+          result = FALSE;
+          done = TRUE;
+          goto done;
+        } else if (state != GST_STATE_PLAYING) {
+          GST_DEBUG ("element %s not playing %d %d", name, state, pending);
+          goto done;
+        }
+        eosed = g_list_find (pipeline->eosed, element);
+        if (!eosed) {
+          result = FALSE;
+          done = TRUE;
+        }
+      done:
+        g_free (name);
+        gst_object_unref (GST_OBJECT (element));
+        break;
+      }
+      case GST_ITERATOR_RESYNC:
+        result = TRUE;
+        gst_iterator_resync (sinks);
+        break;
+      case GST_ITERATOR_DONE:
+        done = TRUE;
+        break;
+      default:
+        g_assert_not_reached ();
+        break;
+    }
+  }
+  gst_iterator_free (sinks);
+  return result;
+}
+
+/* FIXME, make me threadsafe */
+static GstBusSyncReply
+pipeline_bus_handler (GstBus * bus, GstMessage * message,
+    GstPipeline * pipeline)
+{
+  GstBusSyncReply result = GST_BUS_PASS;
+  gboolean posteos = FALSE;
+
+  /* we don't want messages from the streaming thread while we're doing the 
+   * state change. We do want them from the state change functions. */
+
+  switch (GST_MESSAGE_TYPE (message)) {
+    case GST_MESSAGE_EOS:
+      if (GST_MESSAGE_SRC (message) != GST_OBJECT (pipeline)) {
+        GST_LOCK (bus);
+        pipeline->eosed =
+            g_list_prepend (pipeline->eosed, GST_MESSAGE_SRC (message));
+        GST_UNLOCK (bus);
+        if (is_eos (pipeline)) {
+          posteos = TRUE;
+        }
+        /* we drop all EOS messages */
+        result = GST_BUS_DROP;
+        gst_message_unref (message);
+      }
+      break;
+    case GST_MESSAGE_ERROR:
+      break;
+    default:
+      break;
+  }
+
+  if (posteos) {
+    gst_bus_post (bus, gst_message_new_eos (GST_OBJECT (pipeline)));
+  }
+
+  return result;
+}
+
 /**
  * gst_pipeline_new:
  * @name: name of new pipeline
@@ -221,25 +329,44 @@ gst_pipeline_new (const gchar * name)
   return gst_element_factory_make ("pipeline", name);
 }
 
+/* MT safe */
 static GstElementStateReturn
 gst_pipeline_change_state (GstElement * element)
 {
-  switch (GST_STATE_TRANSITION (element)) {
-    case GST_STATE_NULL_TO_READY:
-      gst_scheduler_setup (GST_ELEMENT_SCHEDULER (element));
-      break;
-    case GST_STATE_READY_TO_PAUSED:
-    case GST_STATE_PAUSED_TO_PLAYING:
-    case GST_STATE_PLAYING_TO_PAUSED:
-    case GST_STATE_PAUSED_TO_READY:
-    case GST_STATE_READY_TO_NULL:
-      break;
-  }
+  /* implement me */
+  return GST_STATE_FAILURE;
+}
 
-  if (GST_ELEMENT_CLASS (parent_class)->change_state)
-    return GST_ELEMENT_CLASS (parent_class)->change_state (element);
+/**
+ * gst_pipeline_get_scheduler:
+ * @pipeline: the pipeline
+ *
+ * Gets the #GstScheduler of this pipeline.
+ *
+ * Returns: a GstScheduler.
+ *
+ * MT safe.
+ */
+GstScheduler *
+gst_pipeline_get_scheduler (GstPipeline * pipeline)
+{
+  return gst_element_get_scheduler (GST_ELEMENT (pipeline));
+}
 
-  return GST_STATE_SUCCESS;
+/**
+ * gst_pipeline_get_bus:
+ * @pipeline: the pipeline
+ *
+ * Gets the #GstBus of this pipeline.
+ *
+ * Returns: a GstBus
+ *
+ * MT safe.
+ */
+GstBus *
+gst_pipeline_get_bus (GstPipeline * pipeline)
+{
+  return gst_element_get_bus (GST_ELEMENT (pipeline));
 }
 
 static GstClock *