From cf7da52701458cf2386a989e67072f4366272dac Mon Sep 17 00:00:00 2001
From: Wim Taymans <wim.taymans@gmail.com>
Date: Fri, 20 Jun 2008 09:19:59 +0000
Subject: [PATCH] gst/playback/gstplaybin2.c: Implement the source property,
 emit notify when it changes in the underlying uridecodebin.

Original commit message from CVS:
* gst/playback/gstplaybin2.c: (gst_play_bin_get_property),
(notify_source), (activate_group):
Implement the source property, emit notify when it changes in the
underlying uridecodebin.
---
 ChangeLog                  |  7 +++++++
 gst/playback/gstplaybin2.c | 31 ++++++++++++++++++++++++++++++-
 2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 9d4a8e7216..17f8a70aad 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2008-06-20  Wim Taymans  <wim.taymans@collabora.co.uk>
+
+	* gst/playback/gstplaybin2.c: (gst_play_bin_get_property),
+	(notify_source), (activate_group):
+	Implement the source property, emit notify when it changes in the
+	underlying uridecodebin.
+
 2008-06-20  Wim Taymans  <wim.taymans@collabora.co.uk>
 
 	* tests/examples/seek/seek.c: (stop_cb):
diff --git a/gst/playback/gstplaybin2.c b/gst/playback/gstplaybin2.c
index f39b4fa432..0abd1d8408 100644
--- a/gst/playback/gstplaybin2.c
+++ b/gst/playback/gstplaybin2.c
@@ -362,6 +362,9 @@ struct _GstPlayBin
   /* our play sink */
   GstPlaySink *playsink;
 
+  /* the last activated source */
+  GstElement *source;
+
   GValueArray *elements;        /* factories we can use for selecting elements */
 };
 
@@ -1299,7 +1302,12 @@ gst_play_bin_get_property (GObject * object, guint prop_id, GValue * value,
       break;
     }
     case PROP_SOURCE:
+    {
+      GST_OBJECT_LOCK (playbin);
+      g_value_set_object (value, playbin->source);
+      GST_OBJECT_UNLOCK (playbin);
       break;
+    }
     case PROP_FLAGS:
       g_value_set_flags (value, gst_play_sink_get_flags (playbin->playsink));
       break;
@@ -1815,12 +1823,31 @@ autoplug_select_cb (GstElement * decodebin, GstPad * pad,
   return GST_AUTOPLUG_SELECT_EXPOSE;
 }
 
+static void
+notify_source (GstElement * uridecodebin, GParamSpec * pspec,
+    GstSourceGroup * group)
+{
+  GstPlayBin *playbin;
+  GstElement *source;
+
+  playbin = group->playbin;
+
+  GST_OBJECT_LOCK (playbin);
+  g_object_get (group->uridecodebin, "source", &source, NULL);
+  if (playbin->source)
+    gst_object_unref (playbin->source);
+  playbin->source = source;
+  GST_OBJECT_UNLOCK (playbin);
+
+  g_object_notify (G_OBJECT (playbin), "source");
+}
+
 /* must be called with PLAY_BIN_LOCK */
 static gboolean
 activate_group (GstPlayBin * playbin, GstSourceGroup * group)
 {
   GstElement *uridecodebin;
-  GstElement *suburidecodebin;
+  GstElement *suburidecodebin = NULL;
 
   g_return_val_if_fail (group->valid, FALSE);
   g_return_val_if_fail (!group->active, FALSE);
@@ -1851,6 +1878,8 @@ activate_group (GstPlayBin * playbin, GstSourceGroup * group)
       group);
   g_signal_connect (uridecodebin, "no-more-pads", G_CALLBACK (no_more_pads_cb),
       group);
+  g_signal_connect (uridecodebin, "notify::source", G_CALLBACK (notify_source),
+      group);
   /* we have 1 pending no-more-pads */
   group->pending = 1;