[rygel] renderer-gst: Use cubic volume

[Jens Georg <jensgeorg src gnome org>]

commit 50a54ae2473c60813af29293ef272cd0a875fe8e
Author: Jens Georg <jensg openismus com>
Date:   Fri Mar 8 19:50:32 2013 +0100

    renderer-gst: Use cubic volume
    
    https://bugzilla.gnome.org/show_bug.cgi?id=689632

 configure.ac                                       |    7 +++++--
 .../rygel-playbin-player.vala                      |    6 ++++--
 2 files changed, 9 insertions(+), 4 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index da96b0d..d5ef5a6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -52,6 +52,9 @@ GSTREAMER_TAG_REQUIRED=1.0
 GSTREAMER_APP_REQUIRED=1.0
 LIBSQLITE3_REQUIRED=3.5
 
+dnl Additional requirements for playbin plugin
+GSTREAMER_AUDIO_REQUIRED=1.0
+
 dnl Additional requirements for tracker plugin
 TRACKER_SPARQL_REQUIRED_MIN=0.14.0
 
@@ -111,8 +114,8 @@ AS_IF([test "x$with_media_engine" = "xgstreamer"],
         RYGEL_MEDIA_ENGINE_GSTREAMER_DEPS_VALAFLAGS="$RYGEL_COMMON_MODULES_VALAFLAGS --pkg 
gstreamer-base-1.0 --pkg gstreamer-pbutils-1.0 --pkg gupnp-dlna-2.0"
         AC_SUBST([RYGEL_MEDIA_ENGINE_GSTREAMER_DEPS_VALAFLAGS])
 
-        PKG_CHECK_MODULES([LIBRYGEL_RENDERER_GST_DEPS], [$RYGEL_COMMON_MODULES gstreamer-1.0 >= 
$GSTREAMER_REQUIRED gio-2.0 >= $GIO_REQUIRED])
-        LIBRYGEL_RENDERER_GST_DEPS_VALAFLAGS="$RYGEL_COMMON_MODULES_VALAFLAGS --pkg gstreamer-1.0"
+        PKG_CHECK_MODULES([LIBRYGEL_RENDERER_GST_DEPS], [$RYGEL_COMMON_MODULES gstreamer-1.0 >= 
$GSTREAMER_REQUIRED gstreamer-audio-1.0 >= $GSTREAMER_AUDIO_REQUIRED gio-2.0 >= $GIO_REQUIRED])
+        LIBRYGEL_RENDERER_GST_DEPS_VALAFLAGS="$RYGEL_COMMON_MODULES_VALAFLAGS --pkg gstreamer-1.0 --pkg 
gstreamer-audio-1.0"
         AC_SUBST([LIBRYGEL_RENDERER_GST_DEPS_VALAFLAGS])
       ],
       [enable_gstreamer="no"])
diff --git a/src/librygel-renderer-gst/rygel-playbin-player.vala 
b/src/librygel-renderer-gst/rygel-playbin-player.vala
index b71c5cc..57639c5 100644
--- a/src/librygel-renderer-gst/rygel-playbin-player.vala
+++ b/src/librygel-renderer-gst/rygel-playbin-player.vala
@@ -284,11 +284,13 @@ public class Rygel.Playbin.Player : GLib.Object, Rygel.MediaPlayer {
 
     public double volume {
         get {
-            return this.playbin.volume;
+            return (this.playbin as Audio.StreamVolume).get_volume
+                                        (Audio.StreamVolumeFormat.CUBIC);
         }
 
         set {
-            this.playbin.volume = value;
+            (this.playbin as Audio.StreamVolume).set_volume
+                                        (Audio.StreamVolumeFormat.CUBIC, value);
             debug ("volume set to %f.", value);
         }
     }