[rygel] renderer-gst: Use source element for queries.

[Jens Georg <jensgeorg src gnome org>]

commit 69e2a5fe71275eb0fd08eda4dd2add87c9712213
Author: siva <siva orexel com>
Date:   Fri Dec 20 13:26:34 2013 -0700

    renderer-gst: Use source element for queries.
    
    Fixes querying duration and position.
    
    Fixes DLNA CTT : 7.3.157.8
    
    https://bugzilla.gnome.org/show_bug.cgi?id=721824

 .../rygel-playbin-player.vala                      |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/librygel-renderer-gst/rygel-playbin-player.vala 
b/src/librygel-renderer-gst/rygel-playbin-player.vala
index 129a4c1..dc659c7 100644
--- a/src/librygel-renderer-gst/rygel-playbin-player.vala
+++ b/src/librygel-renderer-gst/rygel-playbin-player.vala
@@ -302,9 +302,9 @@ public class Rygel.Playbin.Player : GLib.Object, Rygel.MediaPlayer {
 
     public int64 duration {
         get {
-            int64 dur;
+            int64 dur=0;
 
-            if (this.playbin.query_duration (Format.TIME, out dur)) {
+            if (this.playbin.source.query_duration (Format.TIME, out dur)) {
                 return dur / Gst.USECOND;
             } else {
                 return 0;
@@ -328,7 +328,7 @@ public class Rygel.Playbin.Player : GLib.Object, Rygel.MediaPlayer {
         get {
             int64 pos;
 
-            if (this.playbin.query_position (Format.TIME, out pos)) {
+            if (this.playbin.source.query_position (Format.TIME, out pos)) {
                 return pos / Gst.USECOND;
             } else {
                 return 0;