[rygel] server: Fix thumbnails for XBox 360

[Jens Georg <jensgeorg src gnome org>]

commit 7ed1545a1de8948720e590ab3d6b36b545778f11
Author: Jens Georg <jensg openismus com>
Date:   Thu Nov 1 23:57:01 2012 +0100

    server: Fix thumbnails for XBox 360
    
    If a video file needed transcoding for the XBox, it would not display a
    thumbnail because the generated url was adding the /th/ subrequest on top of
    the /tr/ request.
    
    This caused a "no transcoder available for WMVHIGH_FULL.wmv" warning as well
    as a failing thumbnail request.

 src/librygel-server/rygel-xbox-hacks.vala |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/src/librygel-server/rygel-xbox-hacks.vala b/src/librygel-server/rygel-xbox-hacks.vala
index fc4e3dd..33b33b6 100644
--- a/src/librygel-server/rygel-xbox-hacks.vala
+++ b/src/librygel-server/rygel-xbox-hacks.vala
@@ -55,7 +55,12 @@ internal class Rygel.XBoxHacks : ClientHacks {
             return;
         }
 
-        uri.set_path (uri.get_path () + "/th/0");
+        var path = uri.get_path ();
+        var particles = path.split ("/")[0:4];
+        particles += "th";
+        particles += "0";
+
+        uri.set_path (string.joinv("/", particles));
     }
 
     public void apply_on_device (RootDevice device,