[rygel] renderer: Add comment about live sources

[Jens Georg <jensgeorg src gnome org>]

commit b85e72754d1b7620ecb9c0788f45fe2f5c2510c7
Author: Jens Georg <jensg openismus com>
Date:   Tue Nov 13 16:18:58 2012 +0100

    renderer: Add comment about live sources

 .../rygel-playbin-player.vala                      |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/librygel-renderer-gst/rygel-playbin-player.vala b/src/librygel-renderer-gst/rygel-playbin-player.vala
index a411c6b..1f49de6 100644
--- a/src/librygel-renderer-gst/rygel-playbin-player.vala
+++ b/src/librygel-renderer-gst/rygel-playbin-player.vala
@@ -122,6 +122,9 @@ public class Rygel.Playbin.Player : GLib.Object, Rygel.MediaPlayer {
                     if (state != State.PLAYING ||
                         pending != State.VOID_PENDING) {
                         this._playback_state = "TRANSITIONING";
+                        // This needs a check if GStreamer and DLNA agree on
+                        // the "liveness" of the source (s0/sn increase in
+                        // protocol info)
                         this.is_live = this.playbin.set_state (State.PLAYING)
                                         == StateChangeReturn.NO_PREROLL;
                     } else {
@@ -160,6 +163,9 @@ public class Rygel.Playbin.Player : GLib.Object, Rygel.MediaPlayer {
                                         == StateChangeReturn.NO_PREROLL;
                         break;
                     case "PLAYING":
+                        // This needs a check if GStreamer and DLNA agree on
+                        // the "liveness" of the source (s0/sn increase in
+                        // protocol info)
                         this.is_live = this.playbin.set_state (State.PLAYING)
                                         == StateChangeReturn.NO_PREROLL;
                         break;