]> git.sesse.net Git - vlc/blobdiff - modules/control/dbus.c
playlist_DeleteFromInput: pass the input item rather than its ID
[vlc] / modules / control / dbus.c
index cbd6c55fcc8b37d05d9ac094d02dbace575f5d93..9aa7a9dadbd0635375aabbac29c695b5994f17e5 100644 (file)
@@ -3,6 +3,7 @@
  *****************************************************************************
  * Copyright © 2006-2008 Rafaël Carré
  * Copyright © 2007-2008 Mirsal Ennaime
+ * Copyright © 2009 The VideoLAN team
  * $Id$
  *
  * Authors:    Rafaël Carré <funman at videolanorg>
  * Preamble
  *****************************************************************************/
 
-#include <dbus/dbus.h>
-
-#include "dbus.h"
-
 #ifdef HAVE_CONFIG_H
 # include "config.h"
 #endif
 
-#include <vlc/vlc.h>
+#include <dbus/dbus.h>
+#include "dbus.h"
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
 #include <vlc_aout.h>
 #include <vlc_interface.h>
-#include <vlc_meta.h>
-#include <vlc_input.h>
 #include <vlc_playlist.h>
-#include <vlc_demux.h>
-#include <vlc_access.h>
+
+#include <math.h>
+
+#include <assert.h>
 
 /*****************************************************************************
  * Local prototypes.
@@ -64,20 +65,15 @@ static int  Open    ( vlc_object_t * );
 static void Close   ( vlc_object_t * );
 static void Run     ( intf_thread_t * );
 
-static int StateChange( vlc_object_t *, const char *, vlc_value_t,
-                        vlc_value_t, void * );
-
-static int TrackChange( vlc_object_t *, const char *, vlc_value_t,
-                        vlc_value_t, void * );
+static int StateChange( intf_thread_t *, int );
+static int TrackChange( intf_thread_t * );
+static int StatusChangeEmit( intf_thread_t *);
+static int TrackListChangeEmit( intf_thread_t *, int, int );
 
-static int StatusChangeEmit( vlc_object_t *, const char *, vlc_value_t,
-                        vlc_value_t, void * );
-
-static int TrackListChangeEmit( vlc_object_t *, const char *, vlc_value_t,
-                        vlc_value_t, void * );
+static int AllCallback( vlc_object_t*, const char*, vlc_value_t, vlc_value_t, void* );
 
 static int GetInputMeta ( input_item_t *, DBusMessageIter * );
-static int MarshalStatus ( intf_thread_t *, DBusMessageIter *, vlc_bool_t );
+static int MarshalStatus ( intf_thread_t *, DBusMessageIter *, bool );
 static int UpdateCaps( intf_thread_t* );
 
 /* GetCaps() capabilities */
@@ -93,25 +89,49 @@ enum
      CAPS_CAN_HAS_TRACKLIST     = 1 << 6
 };
 
+// The signal that can be get from the callbacks
+enum
+{
+    SIGNAL_ITEM_CURRENT,
+    SIGNAL_INTF_CHANGE,
+    SIGNAL_PLAYLIST_ITEM_APPEND,
+    SIGNAL_PLAYLIST_ITEM_DELETED,
+    SIGNAL_RANDOM,
+    SIGNAL_REPEAT,
+    SIGNAL_LOOP,
+    SIGNAL_STATE
+};
+
 struct intf_sys_t
 {
     DBusConnection *p_conn;
-    vlc_bool_t      b_meta_read;
+    bool            b_meta_read;
     dbus_int32_t    i_caps;
+    bool            b_dead;
+    vlc_array_t    *p_events;
+    vlc_mutex_t     lock;
 };
 
+typedef struct
+{
+    int signal;
+    int i_node;
+    int i_input_state;
+} callback_info_t;
+
+
 /*****************************************************************************
  * Module descriptor
  *****************************************************************************/
 
-vlc_module_begin();
-    set_shortname( _("dbus"));
-    set_category( CAT_INTERFACE );
-    set_subcategory( SUBCAT_INTERFACE_CONTROL );
-    set_description( _("D-Bus control interface") );
-    set_capability( "interface", 0 );
-    set_callbacks( Open, Close );
-vlc_module_end();
+vlc_module_begin ()
+    set_shortname( N_("dbus"))
+    set_category( CAT_INTERFACE )
+    set_subcategory( SUBCAT_INTERFACE_CONTROL )
+    set_description( N_("D-Bus control interface") )
+    set_capability( "interface", 0 )
+    set_callbacks( Open, Close )
+vlc_module_end ()
 
 /*****************************************************************************
  * Methods
@@ -122,10 +142,33 @@ vlc_module_end();
 DBUS_METHOD( Quit )
 { /* exits vlc */
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    playlist_Stop( p_playlist );
-    pl_Release( ((vlc_object_t*) p_this) );
-    vlc_object_kill(((vlc_object_t*)p_this)->p_libvlc);
+    libvlc_Quit(((vlc_object_t*)p_this)->p_libvlc);
+    REPLY_SEND;
+}
+
+DBUS_METHOD( MprisVersion )
+{ /*implemented version of the mpris spec */
+    REPLY_INIT;
+    OUT_ARGUMENTS;
+    VLC_UNUSED( p_this );
+    dbus_uint16_t i_major = VLC_MPRIS_VERSION_MAJOR;
+    dbus_uint16_t i_minor = VLC_MPRIS_VERSION_MINOR;
+    DBusMessageIter version;
+
+    if( !dbus_message_iter_open_container( &args, DBUS_TYPE_STRUCT, NULL,
+            &version ) )
+        return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+    if( !dbus_message_iter_append_basic( &version, DBUS_TYPE_UINT16,
+            &i_major ) )
+        return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+    if( !dbus_message_iter_append_basic( &version, DBUS_TYPE_UINT16,
+            &i_minor ) )
+        return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+    if( !dbus_message_iter_close_container( &args, &version ) )
+        return DBUS_HANDLER_RESULT_NEED_MEMORY;
     REPLY_SEND;
 }
 
@@ -136,9 +179,8 @@ DBUS_METHOD( PositionGet )
     vlc_value_t position;
     dbus_int32_t i_pos;
 
-    playlist_t *p_playlist = pl_Yield( ((vlc_object_t*) p_this) );
-    PL_LOCK;
-    input_thread_t *p_input = p_playlist->p_input;
+    playlist_t *p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
+    input_thread_t *p_input = playlist_CurrentInput( p_playlist );
 
     if( !p_input )
         i_pos = 0;
@@ -146,8 +188,8 @@ DBUS_METHOD( PositionGet )
     {
         var_Get( p_input, "time", &position );
         i_pos = position.i_time / 1000;
+        vlc_object_release( p_input );
     }
-    PL_UNLOCK;
     pl_Release( ((vlc_object_t*) p_this) );
     ADD_INT32( &i_pos );
     REPLY_SEND;
@@ -170,21 +212,20 @@ DBUS_METHOD( PositionSet )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
-    p_playlist = pl_Yield( ((vlc_object_t*) p_this) );
-    PL_LOCK;
-    input_thread_t *p_input = p_playlist->p_input;
+    p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
+    input_thread_t *p_input = playlist_CurrentInput( p_playlist );
 
     if( p_input )
     {
         position.i_time = i_pos * 1000;
         var_Set( p_input, "time", position );
+        vlc_object_release( p_input );
     }
-    PL_UNLOCK;
     pl_Release( ((vlc_object_t*) p_this) );
     REPLY_SEND;
 }
@@ -197,7 +238,8 @@ DBUS_METHOD( VolumeGet )
     audio_volume_t i_vol;
     /* 2nd argument of aout_VolumeGet is int32 */
     aout_VolumeGet( (vlc_object_t*) p_this, &i_vol );
-    i_dbus_vol = ( 100 * i_vol ) / AOUT_VOLUME_MAX;
+    double f_vol = 100. * i_vol / AOUT_VOLUME_MAX;
+    i_dbus_vol = round( f_vol );
     ADD_INT32( &i_dbus_vol );
     REPLY_SEND;
 }
@@ -218,13 +260,14 @@ DBUS_METHOD( VolumeSet )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    i_vol = ( AOUT_VOLUME_MAX / 100 ) *i_dbus_vol;
+    double f_vol = AOUT_VOLUME_MAX * i_dbus_vol / 100.;
+    i_vol = round( f_vol );
     aout_VolumeSet( (vlc_object_t*) p_this, i_vol );
 
     REPLY_SEND;
@@ -233,7 +276,7 @@ DBUS_METHOD( VolumeSet )
 DBUS_METHOD( Next )
 { /* next playlist item */
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( ((vlc_object_t*) p_this) );
+    playlist_t *p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
     playlist_Next( p_playlist );
     pl_Release( ((vlc_object_t*) p_this) );
     REPLY_SEND;
@@ -242,7 +285,7 @@ DBUS_METHOD( Next )
 DBUS_METHOD( Prev )
 { /* previous playlist item */
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( ((vlc_object_t*) p_this) );
+    playlist_t *p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
     playlist_Prev( p_playlist );
     pl_Release( ((vlc_object_t*) p_this) );
     REPLY_SEND;
@@ -251,7 +294,7 @@ DBUS_METHOD( Prev )
 DBUS_METHOD( Stop )
 { /* stop playing */
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( ((vlc_object_t*) p_this) );
+    playlist_t *p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
     playlist_Stop( p_playlist );
     pl_Release( ((vlc_object_t*) p_this) );
     REPLY_SEND;
@@ -268,7 +311,7 @@ DBUS_METHOD( GetStatus )
     REPLY_INIT;
     OUT_ARGUMENTS;
 
-    MarshalStatus( p_this, &args, VLC_TRUE );
+    MarshalStatus( p_this, &args, true );
 
     REPLY_SEND;
 }
@@ -276,18 +319,29 @@ DBUS_METHOD( GetStatus )
 DBUS_METHOD( Pause )
 {
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    playlist_t *p_playlist = pl_Hold( (vlc_object_t*) p_this );
     playlist_Pause( p_playlist );
-    pl_Release( p_playlist );
+    pl_Release( (vlc_object_t*) p_this );
     REPLY_SEND;
 }
 
 DBUS_METHOD( Play )
 {
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    playlist_Play( p_playlist );
-    pl_Release( p_playlist );
+    playlist_t *p_playlist = pl_Hold( (vlc_object_t*) p_this );
+
+    input_thread_t *p_input =  playlist_CurrentInput( p_playlist );
+
+    if( p_input )
+    {
+        double i_pos = 0;
+        input_Control( p_input, INPUT_SET_POSITION, i_pos );
+        vlc_object_release( p_input );
+    }
+    else
+        playlist_Play( p_playlist );
+
+    pl_Release( (vlc_object_t*) p_this );
     REPLY_SEND;
 }
 
@@ -295,12 +349,13 @@ DBUS_METHOD( GetCurrentMetadata )
 {
     REPLY_INIT;
     OUT_ARGUMENTS;
-    playlist_t* p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    playlist_t* p_playlist = pl_Hold( (vlc_object_t*) p_this );
     PL_LOCK;
-    if( p_playlist->status.p_item )
-        GetInputMeta( p_playlist->status.p_item->p_input, &args );
+    playlist_item_t* p_item =  playlist_CurrentPlayingItem( p_playlist );
+    if( p_item )
+        GetInputMeta( p_item->p_input, &args );
     PL_UNLOCK;
-    pl_Release( p_playlist );
+    pl_Release( (vlc_object_t*) p_this );
     REPLY_SEND;
 }
 
@@ -338,6 +393,7 @@ DBUS_METHOD( Identity )
 DBUS_METHOD( AddTrack )
 { /* add the string to the playlist, and play it if the boolean is true */
     REPLY_INIT;
+    OUT_ARGUMENTS;
 
     DBusError error;
     dbus_error_init( &error );
@@ -353,17 +409,20 @@ DBUS_METHOD( AddTrack )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
     playlist_Add( p_playlist, psz_mrl, NULL, PLAYLIST_APPEND |
             ( ( b_play == TRUE ) ? PLAYLIST_GO : 0 ) ,
-            PLAYLIST_END, VLC_TRUE, VLC_FALSE );
-    pl_Release( p_playlist );
+            PLAYLIST_END, true, false );
+    pl_Release( (vlc_object_t*) p_this );
+
+    dbus_int32_t i_success = 0;
+    ADD_INT32( &i_success );
 
     REPLY_SEND;
 }
@@ -373,9 +432,9 @@ DBUS_METHOD( GetCurrentTrack )
     REPLY_INIT;
     OUT_ARGUMENTS;
 
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    playlist_t *p_playlist = pl_Hold( (vlc_object_t*) p_this );
     dbus_int32_t i_position = p_playlist->i_current_index;
-    pl_Release( p_playlist );
+    pl_Release( (vlc_object_t*) p_this );
 
     ADD_INT32( &i_position );
     REPLY_SEND;
@@ -389,9 +448,7 @@ DBUS_METHOD( GetMetadata )
     dbus_error_init( &error );
 
     dbus_int32_t i_position;
-
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    PL_LOCK;
+    playlist_t *p_playlist;
 
     dbus_message_get_args( p_from, &error,
            DBUS_TYPE_INT32, &i_position,
@@ -399,21 +456,21 @@ DBUS_METHOD( GetMetadata )
 
     if( dbus_error_is_set( &error ) )
     {
-        PL_UNLOCK;
-        pl_Release( p_playlist );
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    if( i_position <= p_playlist->items.i_size / 2 )
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    PL_LOCK;
+    if( i_position < p_playlist->current.i_size )
     {
-        GetInputMeta( p_playlist->items.p_elems[i_position*2-1]->p_input, &args );
+        GetInputMeta( p_playlist->current.p_elems[i_position]->p_input, &args );
     }
 
     PL_UNLOCK;
-    pl_Release( p_playlist );
+    pl_Release( (vlc_object_t*) p_this );
     REPLY_SEND;
 }
 
@@ -422,9 +479,9 @@ DBUS_METHOD( GetLength )
     REPLY_INIT;
     OUT_ARGUMENTS;
 
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    dbus_int32_t i_elements = p_playlist->items.i_size / 2;
-    pl_Release( p_playlist );
+    playlist_t *p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    dbus_int32_t i_elements = p_playlist->current.i_size;
+    pl_Release( (vlc_object_t*) p_this );
 
     ADD_INT32( &i_elements );
     REPLY_SEND;
@@ -438,7 +495,7 @@ DBUS_METHOD( DelTrack )
     dbus_error_init( &error );
 
     dbus_int32_t i_position;
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    playlist_t *p_playlist;
 
     dbus_message_get_args( p_from, &error,
             DBUS_TYPE_INT32, &i_position,
@@ -446,33 +503,35 @@ DBUS_METHOD( DelTrack )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    if( i_position <= p_playlist->items.i_size / 2 )
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    PL_LOCK;
+    if( i_position < p_playlist->current.i_size )
     {
         playlist_DeleteFromInput( p_playlist,
-            p_playlist->items.p_elems[i_position*2-1]->i_id,
-            VLC_FALSE );
+            p_playlist->current.p_elems[i_position]->p_input,
+            pl_Locked );
     }
+    PL_UNLOCK;
 
-    pl_Release( p_playlist );
+    pl_Release( (vlc_object_t*) p_this );
 
     REPLY_SEND;
 }
 
-DBUS_METHOD( Loop )
+DBUS_METHOD( SetLoop )
 {
     REPLY_INIT;
     OUT_ARGUMENTS;
 
     DBusError error;
     dbus_bool_t b_loop;
-    vlc_value_t val;
-    playlist_t* p_playlist = NULL;
+    playlist_t* p_playlist;
 
     dbus_error_init( &error );
     dbus_message_get_args( p_from, &error,
@@ -481,15 +540,14 @@ DBUS_METHOD( Loop )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    val.b_bool = ( b_loop == TRUE ) ? VLC_TRUE : VLC_FALSE ;
-    p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    var_Set ( p_playlist, "loop", val );
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    var_SetBool( p_playlist, "loop", ( b_loop == TRUE ) );
     pl_Release( ((vlc_object_t*) p_this) );
 
     REPLY_SEND;
@@ -502,8 +560,7 @@ DBUS_METHOD( Repeat )
 
     DBusError error;
     dbus_bool_t b_repeat;
-    vlc_value_t val;
-    playlist_t* p_playlist = NULL;
+    playlist_t* p_playlist;
 
     dbus_error_init( &error );
     dbus_message_get_args( p_from, &error,
@@ -512,30 +569,27 @@ DBUS_METHOD( Repeat )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    val.b_bool = ( b_repeat == TRUE ) ? VLC_TRUE : VLC_FALSE ;
-
-    p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    var_Set ( p_playlist, "repeat", val );
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    var_SetBool( p_playlist, "repeat", ( b_repeat == TRUE ) );
     pl_Release( ((vlc_object_t*) p_this) );
 
     REPLY_SEND;
 }
 
-DBUS_METHOD( Random )
+DBUS_METHOD( SetRandom )
 {
     REPLY_INIT;
     OUT_ARGUMENTS;
 
     DBusError error;
     dbus_bool_t b_random;
-    vlc_value_t val;
-    playlist_t* p_playlist = NULL;
+    playlist_t* p_playlist;
 
     dbus_error_init( &error );
     dbus_message_get_args( p_from, &error,
@@ -544,16 +598,14 @@ DBUS_METHOD( Random )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    val.b_bool = ( b_random == TRUE ) ? VLC_TRUE : VLC_FALSE ;
-
-    p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    var_Set ( p_playlist, "random", val );
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    var_SetBool( p_playlist, "random", ( b_random == TRUE ) );
     pl_Release( ((vlc_object_t*) p_this) );
 
     REPLY_SEND;
@@ -607,6 +659,8 @@ DBUS_METHOD( handle_root )
     /* here D-Bus method's names are associated to an handler */
 
     METHOD_FUNC( "Identity",                Identity );
+    METHOD_FUNC( "MprisVersion",            MprisVersion );
+    METHOD_FUNC( "Quit",                    Quit );
 
     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 }
@@ -622,7 +676,6 @@ DBUS_METHOD( handle_player )
 
     METHOD_FUNC( "Prev",                    Prev );
     METHOD_FUNC( "Next",                    Next );
-    METHOD_FUNC( "Quit",                    Quit );
     METHOD_FUNC( "Stop",                    Stop );
     METHOD_FUNC( "Play",                    Play );
     METHOD_FUNC( "Pause",                   Pause );
@@ -651,8 +704,8 @@ DBUS_METHOD( handle_tracklist )
     METHOD_FUNC( "GetLength",               GetLength );
     METHOD_FUNC( "AddTrack",                AddTrack );
     METHOD_FUNC( "DelTrack",                DelTrack );
-    METHOD_FUNC( "Loop",                    Loop );
-    METHOD_FUNC( "Random",                  Random );
+    METHOD_FUNC( "SetLoop",                 SetLoop );
+    METHOD_FUNC( "SetRandom",               SetRandom );
 
     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 }
@@ -672,8 +725,9 @@ static int Open( vlc_object_t *p_this )
     if( !p_sys )
         return VLC_ENOMEM;
 
-    p_sys->b_meta_read = VLC_FALSE;
+    p_sys->b_meta_read = false;
     p_sys->i_caps = CAPS_NONE;
+    p_sys->b_dead = false;
 
     dbus_error_init( &error );
 
@@ -709,21 +763,23 @@ static int Open( vlc_object_t *p_this )
 
     dbus_connection_flush( p_conn );
 
-    p_playlist = pl_Yield( p_intf );
-    PL_LOCK;
-    var_AddCallback( p_playlist, "playlist-current", TrackChange, p_intf );
-    var_AddCallback( p_playlist, "intf-change", TrackListChangeEmit, p_intf );
-    var_AddCallback( p_playlist, "item-append", TrackListChangeEmit, p_intf );
-    var_AddCallback( p_playlist, "item-deleted", TrackListChangeEmit, p_intf );
-    var_AddCallback( p_playlist, "random", StatusChangeEmit, p_intf );
-    var_AddCallback( p_playlist, "repeat", StatusChangeEmit, p_intf );
-    var_AddCallback( p_playlist, "loop", StatusChangeEmit, p_intf );
-    PL_UNLOCK;
-    pl_Release( p_playlist );
-
     p_intf->pf_run = Run;
     p_intf->p_sys = p_sys;
     p_sys->p_conn = p_conn;
+    p_sys->p_events = vlc_array_new();
+    vlc_mutex_init( &p_sys->lock );
+
+    p_playlist = pl_Hold( p_intf );
+    PL_LOCK;
+    var_AddCallback( p_playlist, "item-current", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "intf-change", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "playlist-item-append", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "playlist-item-deleted", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "random", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "repeat", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "loop", AllCallback, p_intf );
+    PL_UNLOCK;
+    pl_Release( p_intf );
 
     UpdateCaps( p_intf );
 
@@ -737,33 +793,36 @@ static int Open( vlc_object_t *p_this )
 static void Close   ( vlc_object_t *p_this )
 {
     intf_thread_t   *p_intf     = (intf_thread_t*) p_this;
-    playlist_t      *p_playlist = pl_Yield( p_intf );;
+    playlist_t      *p_playlist = pl_Hold( p_intf );;
     input_thread_t  *p_input;
 
-    p_this->b_dead = VLC_TRUE;
+    var_DelCallback( p_playlist, "item-current", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "intf-change", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "playlist-item-append", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "playlist-item-deleted", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "random", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "repeat", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "loop", AllCallback, p_intf );
 
-    PL_LOCK;
-    var_DelCallback( p_playlist, "playlist-current", TrackChange, p_intf );
-    var_DelCallback( p_playlist, "intf-change", TrackListChangeEmit, p_intf );
-    var_DelCallback( p_playlist, "item-append", TrackListChangeEmit, p_intf );
-    var_DelCallback( p_playlist, "item-deleted", TrackListChangeEmit, p_intf );
-    var_DelCallback( p_playlist, "random", StatusChangeEmit, p_intf );
-    var_DelCallback( p_playlist, "repeat", StatusChangeEmit, p_intf );
-    var_DelCallback( p_playlist, "loop", StatusChangeEmit, p_intf );
-
-    p_input = p_playlist->p_input;
+    p_input = playlist_CurrentInput( p_playlist );
     if ( p_input )
     {
-        vlc_object_yield( p_input );
-        var_DelCallback( p_input, "state", StateChange, p_intf );
+        var_DelCallback( p_input, "state", AllCallback, p_intf );
         vlc_object_release( p_input );
     }
 
-    PL_UNLOCK;
-    pl_Release( p_playlist );
+    pl_Release( p_intf );
 
     dbus_connection_unref( p_intf->p_sys->p_conn );
 
+    // Free the events array
+    for( int i = 0; i < vlc_array_count( p_intf->p_sys->p_events ); i++ )
+    {
+        callback_info_t* info = vlc_array_item_at_index( p_intf->p_sys->p_events, i );
+        free( info );
+    }
+    vlc_mutex_destroy( &p_intf->p_sys->lock );
+    vlc_array_destroy( p_intf->p_sys->p_events );
     free( p_intf->p_sys );
 }
 
@@ -773,11 +832,90 @@ static void Close   ( vlc_object_t *p_this )
 
 static void Run          ( intf_thread_t *p_intf )
 {
-    while( !intf_ShouldDie( p_intf ) )
+    for( ;; )
     {
         msleep( INTF_IDLE_SLEEP );
+        int canc = vlc_savecancel();
         dbus_connection_read_write_dispatch( p_intf->p_sys->p_conn, 0 );
+
+        // Get the messages
+        vlc_mutex_lock( &p_intf->p_sys->lock );
+        for( int i = vlc_array_count( p_intf->p_sys->p_events ) - 1; i >= 0; i-- )
+        {
+            callback_info_t* info = vlc_array_item_at_index( p_intf->p_sys->p_events, i );
+            switch( info->signal )
+            {
+            case SIGNAL_ITEM_CURRENT:
+                TrackChange( p_intf );
+                break;
+            case SIGNAL_INTF_CHANGE:
+            case SIGNAL_PLAYLIST_ITEM_APPEND:
+            case SIGNAL_PLAYLIST_ITEM_DELETED:
+                TrackListChangeEmit( p_intf, info->signal, info->i_node );
+                break;
+            case SIGNAL_RANDOM:
+            case SIGNAL_REPEAT:
+            case SIGNAL_LOOP:
+                StatusChangeEmit( p_intf );
+                break;
+            case SIGNAL_STATE:
+                StateChange( p_intf, info->i_input_state );
+                break;
+            default:
+                assert(0);
+            }
+            free( info );
+            vlc_array_remove( p_intf->p_sys->p_events, i );
+        }
+        vlc_mutex_unlock( &p_intf->p_sys->lock );
+        vlc_restorecancel( canc );
+    }
+}
+
+
+// Get all the callbacks
+static int AllCallback( vlc_object_t *p_this, const char *psz_var,
+                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
+{
+    (void)p_this;
+    (void)oldval;
+    intf_thread_t *p_intf = (intf_thread_t*)p_data;
+
+    callback_info_t *info = malloc( sizeof( callback_info_t ) );
+    if( !info )
+        return VLC_ENOMEM;
+
+    // Wich event is it ?
+    if( !strcmp( "item-current", psz_var ) )
+        info->signal = SIGNAL_ITEM_CURRENT;
+    else if( !strcmp( "intf-change", psz_var ) )
+        info->signal = SIGNAL_INTF_CHANGE;
+    else if( !strcmp( "playlist-item-append", psz_var ) )
+    {
+        info->signal = SIGNAL_PLAYLIST_ITEM_APPEND;
+        info->i_node = ((playlist_add_t*)newval.p_address)->i_node;
     }
+    else if( !strcmp( "playlist-item-deleted", psz_var ) )
+        info->signal = SIGNAL_PLAYLIST_ITEM_DELETED;
+    else if( !strcmp( "random", psz_var ) )
+        info->signal = SIGNAL_RANDOM;
+    else if( !strcmp( "repeat", psz_var ) )
+        info->signal = SIGNAL_REPEAT;
+    else if( !strcmp( "loop", psz_var ) )
+        info->signal = SIGNAL_LOOP;
+    else if( !strcmp( "state", psz_var ) )
+    {
+        info->signal = SIGNAL_STATE;
+        info->i_input_state = newval.i_int;
+    }
+    else
+        assert(0);
+
+    // Append the event
+    vlc_mutex_lock( &p_intf->p_sys->lock );
+    vlc_array_append( p_intf->p_sys->p_events, info );
+    vlc_mutex_unlock( &p_intf->p_sys->lock );
+    return VLC_SUCCESS;
 }
 
 /******************************************************************************
@@ -800,9 +938,9 @@ DBUS_SIGNAL( TrackListChangeSignal )
     SIGNAL_INIT("TrackListChange");
     OUT_ARGUMENTS;
 
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_data );
-    dbus_int32_t i_elements = p_playlist->items.i_size / 2;
-    pl_Release( p_playlist );
+    playlist_t *p_playlist = pl_Hold( (vlc_object_t*) p_data );
+    dbus_int32_t i_elements = p_playlist->current.i_size;
+    pl_Release( (vlc_object_t*) p_data );
 
     ADD_INT32( &i_elements );
     SIGNAL_SEND;
@@ -812,32 +950,33 @@ DBUS_SIGNAL( TrackListChangeSignal )
  * TrackListChangeEmit: Emits the TrackListChange signal
  *****************************************************************************/
 /* FIXME: It is not called on tracklist reordering */
-static int TrackListChangeEmit( vlc_object_t *p_this, const char *psz_var,
-            vlc_value_t oldval, vlc_value_t newval, void *p_data )
+static int TrackListChangeEmit( intf_thread_t *p_intf, int signal, int i_node )
 {
-    VLC_UNUSED(oldval);
-    intf_thread_t *p_intf = p_data;
-
-    if( !strcmp( psz_var, "item-append" ) || !strcmp( psz_var, "item-remove" ) )
+    // "playlist-item-append"
+    if( signal == SIGNAL_PLAYLIST_ITEM_APPEND )
     {
         /* don't signal when items are added/removed in p_category */
-        playlist_t *p_playlist = (playlist_t*)p_this;
-        playlist_add_t *p_add = newval.p_address;
-        playlist_item_t *p_item;
-        p_item = playlist_ItemGetById( p_playlist, p_add->i_node, VLC_TRUE );
+        playlist_t *p_playlist = pl_Hold( p_intf );
+        PL_LOCK;
+        playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_node );
         assert( p_item );
         while( p_item->p_parent )
             p_item = p_item->p_parent;
         if( p_item == p_playlist->p_root_category )
+        {
+            PL_UNLOCK;
+            pl_Release( p_intf );
             return VLC_SUCCESS;
+        }
+        PL_UNLOCK;
+        pl_Release( p_intf );
     }
 
-    if( p_intf->b_dead )
+    if( p_intf->p_sys->b_dead )
         return VLC_SUCCESS;
 
-    /* We're called from the playlist, so that would cause locking issues */
-    /* UpdateCaps( p_intf ); */
-    TrackListChangeSignal( p_intf->p_sys->p_conn, p_data );
+    UpdateCaps( p_intf );
+    TrackListChangeSignal( p_intf->p_sys->p_conn, p_intf );
     return VLC_SUCCESS;
 }
 /*****************************************************************************
@@ -866,7 +1005,7 @@ DBUS_SIGNAL( StatusChangeSignal )
 
     /* we're called from a callback of input_thread_t, so it can not be
      * destroyed before we return */
-    MarshalStatus( (intf_thread_t*) p_data, &args, VLC_FALSE );
+    MarshalStatus( (intf_thread_t*) p_data, &args, false );
 
     SIGNAL_SEND;
 }
@@ -874,32 +1013,41 @@ DBUS_SIGNAL( StatusChangeSignal )
 /*****************************************************************************
  * StateChange: callback on input "state"
  *****************************************************************************/
-static int StateChange( vlc_object_t *p_this, const char* psz_var,
-            vlc_value_t oldval, vlc_value_t newval, void *p_data )
+//static int StateChange( vlc_object_t *p_this, const char* psz_var,
+//            vlc_value_t oldval, vlc_value_t newval, void *p_data )
+static int StateChange( intf_thread_t *p_intf, int i_input_state )
 {
-    VLC_UNUSED(psz_var); VLC_UNUSED(oldval);
-    intf_thread_t       *p_intf     = ( intf_thread_t* ) p_data;
     intf_sys_t          *p_sys      = p_intf->p_sys;
+    playlist_t          *p_playlist;
+    input_thread_t      *p_input;
+    input_item_t        *p_item;
 
-    if( p_intf->b_dead )
+    if( p_intf->p_sys->b_dead )
         return VLC_SUCCESS;
 
     UpdateCaps( p_intf );
 
-    if( !p_sys->b_meta_read && newval.i_int == PLAYING_S )
+    if( !p_sys->b_meta_read && i_input_state == PLAYING_S )
     {
-        input_item_t *p_item = input_GetItem( (input_thread_t*)p_this );
-        if( p_item )
+        p_playlist = pl_Hold( p_intf );
+        p_input = playlist_CurrentInput( p_playlist );
+        if( p_input )
         {
-            p_sys->b_meta_read = VLC_TRUE;
-            TrackChangeSignal( p_sys->p_conn, p_item );
+            p_item = input_GetItem( p_input );
+            if( p_item )
+            {
+                p_sys->b_meta_read = true;
+                TrackChangeSignal( p_sys->p_conn, p_item );
+            }
+            vlc_object_release( p_input );
         }
+        pl_Release( p_intf );
     }
 
-    if( newval.i_int == PLAYING_S || newval.i_int == PAUSE_S ||
-        newval.i_int == END_S )
+    if( i_input_state == PLAYING_S || i_input_state == PAUSE_S ||
+        i_input_state == END_S )
     {
-        StatusChangeSignal( p_sys->p_conn, (void*) p_intf );
+        StatusChangeSignal( p_sys->p_conn, p_intf );
     }
 
     return VLC_SUCCESS;
@@ -908,54 +1056,40 @@ static int StateChange( vlc_object_t *p_this, const char* psz_var,
 /*****************************************************************************
  * StatusChangeEmit: Emits the StatusChange signal
  *****************************************************************************/
-static int StatusChangeEmit( vlc_object_t *p_this, const char *psz_var,
-            vlc_value_t oldval, vlc_value_t newval, void *p_data )
+static int StatusChangeEmit( intf_thread_t * p_intf )
 {
-    VLC_UNUSED(p_this); VLC_UNUSED(psz_var);
-    VLC_UNUSED(oldval); VLC_UNUSED(newval);
-    intf_thread_t *p_intf = p_data;
-
-    if( p_intf->b_dead )
+    if( p_intf->p_sys->b_dead )
         return VLC_SUCCESS;
 
     UpdateCaps( p_intf );
-    StatusChangeSignal( p_intf->p_sys->p_conn, p_data );
+    StatusChangeSignal( p_intf->p_sys->p_conn, p_intf );
     return VLC_SUCCESS;
 }
 
 /*****************************************************************************
- * TrackChange: callback on playlist "playlist-current"
+ * TrackChange: callback on playlist "item-current"
  *****************************************************************************/
-static int TrackChange( vlc_object_t *p_this, const char *psz_var,
-            vlc_value_t oldval, vlc_value_t newval, void *p_data )
+static int TrackChange( intf_thread_t *p_intf )
 {
-    intf_thread_t       *p_intf     = ( intf_thread_t* ) p_data;
     intf_sys_t          *p_sys      = p_intf->p_sys;
     playlist_t          *p_playlist;
     input_thread_t      *p_input    = NULL;
     input_item_t        *p_item     = NULL;
-    VLC_UNUSED( p_this ); VLC_UNUSED( psz_var );
-    VLC_UNUSED( oldval ); VLC_UNUSED( newval );
 
-    if( p_intf->b_dead )
+    if( p_intf->p_sys->b_dead )
         return VLC_SUCCESS;
 
-    p_sys->b_meta_read = VLC_FALSE;
-
-    p_playlist = pl_Yield( p_intf );
-    PL_LOCK;
-    p_input = p_playlist->p_input;
+    p_sys->b_meta_read = false;
 
+    p_playlist = pl_Hold( p_intf );
+    p_input = playlist_CurrentInput( p_playlist );
     if( !p_input )
     {
-        PL_UNLOCK;
-        pl_Release( p_playlist );
+        pl_Release( p_intf );
         return VLC_SUCCESS;
     }
 
-    vlc_object_yield( p_input );
-    PL_UNLOCK;
-    pl_Release( p_playlist );
+    pl_Release( p_intf );
 
     p_item = input_GetItem( p_input );
     if( !p_item )
@@ -966,11 +1100,11 @@ static int TrackChange( vlc_object_t *p_this, const char *psz_var,
 
     if( input_item_IsPreparsed( p_item ) )
     {
-        p_sys->b_meta_read = VLC_TRUE;
+        p_sys->b_meta_read = true;
         TrackChangeSignal( p_sys->p_conn, p_item );
     }
 
-    var_AddCallback( p_input, "state", StateChange, p_intf );
+    var_AddCallback( p_input, "state", AllCallback, p_intf );
 
     vlc_object_release( p_input );
     return VLC_SUCCESS;
@@ -978,49 +1112,39 @@ static int TrackChange( vlc_object_t *p_this, const char *psz_var,
 
 /*****************************************************************************
  * UpdateCaps: update p_sys->i_caps
+ * This function have to be called with the playlist unlocked
  ****************************************************************************/
 static int UpdateCaps( intf_thread_t* p_intf )
 {
+    intf_sys_t* p_sys = p_intf->p_sys;
     dbus_int32_t i_caps = CAPS_CAN_HAS_TRACKLIST;
-    playlist_t* p_playlist = pl_Yield( (vlc_object_t*)p_intf );
-    PL_LOCK;
+    playlist_t* p_playlist = pl_Hold( p_intf );
     
-    if( p_playlist->items.i_size > 0 )
+    PL_LOCK;
+    if( p_playlist->current.i_size > 0 )
         i_caps |= CAPS_CAN_PLAY | CAPS_CAN_GO_PREV | CAPS_CAN_GO_NEXT;
+    PL_UNLOCK;
 
-    if( p_playlist->p_input )
+    input_thread_t* p_input = playlist_CurrentInput( p_playlist );
+    if( p_input )
     {
-        access_t *p_access = (access_t*)vlc_object_find( p_playlist->p_input,
-            VLC_OBJECT_ACCESS, FIND_CHILD );
-        if( p_access && p_access->pf_control )
-        {
-            vlc_bool_t b_can_pause;
-            if( !access2_Control( p_access, ACCESS_CAN_PAUSE, &b_can_pause ) &&
-                    b_can_pause )
-                i_caps |= CAPS_CAN_PAUSE;
-            vlc_object_release( p_access );
-        }
-        demux_t *p_demux = (demux_t*)vlc_object_find( p_playlist->p_input,
-            VLC_OBJECT_DEMUX, FIND_CHILD );
-        if( p_demux )
-        {   /* XXX: is: demux can seek and access can not a possibility ? */
-            vlc_bool_t b_can_seek;
-            if( !stream_Control( p_demux->s, STREAM_CAN_SEEK, &b_can_seek ) &&
-                    b_can_seek )
-                i_caps |= CAPS_CAN_SEEK;
-            vlc_object_release( p_demux );
-        }
+        /* XXX: if UpdateCaps() is called too early, these are
+         * unconditionnaly true */
+        if( var_GetBool( p_input, "can-pause" ) )
+            i_caps |= CAPS_CAN_PAUSE;
+        if( var_GetBool( p_input, "can-seek" ) )
+            i_caps |= CAPS_CAN_SEEK;
+        vlc_object_release( p_input );
     }
 
-    PL_UNLOCK;
-    pl_Release( p_playlist );
+    pl_Release( p_intf );
 
-    if( p_intf->p_sys->b_meta_read )
+    if( p_sys->b_meta_read )
         i_caps |= CAPS_CAN_PROVIDE_METADATA;
 
     if( i_caps != p_intf->p_sys->i_caps )
     {
-        p_intf->p_sys->i_caps = i_caps;
+        p_sys->i_caps = i_caps;
         CapsChangeSignal( p_intf->p_sys->p_conn, (vlc_object_t*)p_intf );
     }
 
@@ -1066,7 +1190,7 @@ static int GetInputMeta( input_item_t* p_input,
     "title", "artist", "genre", "copyright", "album", "tracknum",
     "description", "rating", "date", "setting", "url", "language",
     "nowplaying", "publisher", "encodedby", "arturl", "trackid",
-    "status", "URI", "length", "video-codec", "audio-codec",
+    "status", "location", "length", "video-codec", "audio-codec",
     "video-bitrate", "audio-bitrate", "audio-samplerate"
     };
 
@@ -1110,7 +1234,7 @@ static int GetInputMeta( input_item_t* p_input,
  *****************************************************************************/
 
 static int MarshalStatus( intf_thread_t* p_intf, DBusMessageIter* args,
-                          vlc_bool_t lock )
+                          bool lock )
 { /* This is NOT the right way to do that, it would be better to sore
      the status information in p_sys and update it on change, thus
      avoiding a long lock */
@@ -1121,13 +1245,11 @@ static int MarshalStatus( intf_thread_t* p_intf, DBusMessageIter* args,
     playlist_t* p_playlist = NULL;
     input_thread_t* p_input = NULL;
 
-    p_playlist = pl_Yield( (vlc_object_t*) p_intf );
-    if( lock )
-        PL_LOCK;
+    p_playlist = pl_Hold( p_intf );
 
     i_state = 2;
 
-    p_input = p_playlist->p_input;
+    p_input = playlist_CurrentInput( p_playlist );
     if( p_input )
     {
         var_Get( p_input, "state", &val );
@@ -1137,20 +1259,16 @@ static int MarshalStatus( intf_thread_t* p_intf, DBusMessageIter* args,
             i_state = 1;
         else if( val.i_int <= PLAYING_S )
             i_state = 0;
+        vlc_object_release( p_input );
     }
 
-    var_Get( p_playlist, "random", &val );
-    i_random = val.i_int;
+    i_random = var_CreateGetBool( p_playlist, "random" );
 
-    var_Get( p_playlist, "repeat", &val );
-    i_repeat = val.i_int;
+    i_repeat = var_CreateGetBool( p_playlist, "repeat" );
 
-    var_Get( p_playlist, "loop", &val );
-    i_loop = val.i_int;
+    i_loop = var_CreateGetBool( p_playlist, "loop" );
 
-    if( lock )
-        PL_UNLOCK;
-    pl_Release( p_playlist );
+    pl_Release( p_intf );
 
     dbus_message_iter_open_container( args, DBUS_TYPE_STRUCT, NULL, &status );
     dbus_message_iter_append_basic( &status, DBUS_TYPE_INT32, &i_state );