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/*****************************************************************************
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* dbus.c : D-Bus control interface
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*****************************************************************************
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* Copyright © 2006-2008 Rafaël Carré
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* Copyright © 2007-2008 Mirsal Ennaime
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* Copyright © 2009 The VideoLAN team
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* $Id: bd59f824745b517c94fe658c375192191f20cf69 $
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* Authors: Rafaël Carré <funman at videolanorg>
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* Mirsal Ennaime <mirsal dot ennaime at gmail dot com>
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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* D-Bus Specification:
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* http://dbus.freedesktop.org/doc/dbus-specification.html
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* D-Bus low-level C API (libdbus)
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* http://dbus.freedesktop.org/doc/dbus/api/html/index.html
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* "If you use this low-level API directly, you're signing up for some pain."
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* MPRIS Specification version 1.0
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* http://wiki.xmms2.xmms.se/index.php/MPRIS
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/*****************************************************************************
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*****************************************************************************/
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#include <dbus/dbus.h>
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#include <vlc_common.h>
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#include <vlc_plugin.h>
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#include <vlc_interface.h>
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#include <vlc_playlist.h>
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/*****************************************************************************
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*****************************************************************************/
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static int Open ( vlc_object_t * );
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static void Close ( vlc_object_t * );
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static void Run ( intf_thread_t * );
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static int StateChange( intf_thread_t *, int );
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static int TrackChange( intf_thread_t * );
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static int StatusChangeEmit( intf_thread_t *);
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static int TrackListChangeEmit( intf_thread_t *, int, int );
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static int AllCallback( vlc_object_t*, const char*, vlc_value_t, vlc_value_t, void* );
76
static int GetInputMeta ( input_item_t *, DBusMessageIter * );
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static int MarshalStatus ( intf_thread_t *, DBusMessageIter * );
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static int UpdateCaps( intf_thread_t* );
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/* GetCaps() capabilities */
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CAPS_CAN_GO_NEXT = 1 << 0,
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CAPS_CAN_GO_PREV = 1 << 1,
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CAPS_CAN_PAUSE = 1 << 2,
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CAPS_CAN_PLAY = 1 << 3,
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CAPS_CAN_SEEK = 1 << 4,
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CAPS_CAN_PROVIDE_METADATA = 1 << 5,
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CAPS_CAN_HAS_TRACKLIST = 1 << 6
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// The signal that can be get from the callbacks
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SIGNAL_PLAYLIST_ITEM_APPEND,
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SIGNAL_PLAYLIST_ITEM_DELETED,
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DBusConnection *p_conn;
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playlist_t *p_playlist;
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vlc_array_t *p_events;
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input_thread_t *p_input;
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#define INTF ((intf_thread_t *)p_this)
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#define PL (INTF->p_sys->p_playlist)
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/*****************************************************************************
131
*****************************************************************************/
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set_shortname( N_("dbus"))
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set_category( CAT_INTERFACE )
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set_subcategory( SUBCAT_INTERFACE_CONTROL )
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set_description( N_("D-Bus control interface") )
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set_capability( "interface", 0 )
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set_callbacks( Open, Close )
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/*****************************************************************************
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*****************************************************************************/
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libvlc_Quit(INTF->p_libvlc);
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DBUS_METHOD( MprisVersion )
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{ /*implemented version of the mpris spec */
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VLC_UNUSED( p_this );
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dbus_uint16_t i_major = VLC_MPRIS_VERSION_MAJOR;
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dbus_uint16_t i_minor = VLC_MPRIS_VERSION_MINOR;
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DBusMessageIter version;
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if( !dbus_message_iter_open_container( &args, DBUS_TYPE_STRUCT, NULL,
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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if( !dbus_message_iter_append_basic( &version, DBUS_TYPE_UINT16,
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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if( !dbus_message_iter_append_basic( &version, DBUS_TYPE_UINT16,
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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if( !dbus_message_iter_close_container( &args, &version ) )
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
181
DBUS_METHOD( PositionGet )
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{ /* returns position in milliseconds */
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input_thread_t *p_input = playlist_CurrentInput( PL );
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i_pos = var_GetTime( p_input, "time" ) / 1000;
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vlc_object_release( p_input );
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DBUS_METHOD( PositionSet )
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{ /* set position in milliseconds */
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vlc_value_t position;
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dbus_error_init( &error );
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dbus_message_get_args( p_from, &error,
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DBUS_TYPE_INT32, &i_pos,
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if( dbus_error_is_set( &error ) )
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msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
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dbus_error_free( &error );
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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input_thread_t *p_input = playlist_CurrentInput( PL );
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position.i_time = ((mtime_t)i_pos) * 1000;
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var_Set( p_input, "time", position );
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vlc_object_release( p_input );
232
DBUS_METHOD( VolumeGet )
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{ /* returns volume in percentage */
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dbus_int32_t i_dbus_vol;
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audio_volume_t i_vol;
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/* 2nd argument of aout_VolumeGet is int32 */
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aout_VolumeGet( PL, &i_vol );
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double f_vol = 100. * i_vol / AOUT_VOLUME_MAX;
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i_dbus_vol = round( f_vol );
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ADD_INT32( &i_dbus_vol );
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DBUS_METHOD( VolumeSet )
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{ /* set volume in percentage */
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dbus_error_init( &error );
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dbus_int32_t i_dbus_vol;
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audio_volume_t i_vol;
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dbus_message_get_args( p_from, &error,
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DBUS_TYPE_INT32, &i_dbus_vol,
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if( dbus_error_is_set( &error ) )
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msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
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dbus_error_free( &error );
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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double f_vol = AOUT_VOLUME_MAX * i_dbus_vol / 100.;
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i_vol = round( f_vol );
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aout_VolumeSet( PL, i_vol );
277
{ /* next playlist item */
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{ /* previous playlist item */
297
DBUS_METHOD( GetStatus )
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{ /* returns the current status as a struct of 4 ints */
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First 0 = Playing, 1 = Paused, 2 = Stopped.
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Second 0 = Playing linearly , 1 = Playing randomly.
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Third 0 = Go to the next element once the current has finished playing , 1 = Repeat the current element
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Fourth 0 = Stop playing once the last element has been played, 1 = Never give up playing *
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MarshalStatus( p_this, &args );
316
playlist_Pause( PL );
324
input_thread_t *p_input = playlist_CurrentInput( PL );
329
input_Control( p_input, INPUT_SET_POSITION, i_pos );
330
vlc_object_release( p_input );
338
DBUS_METHOD( GetCurrentMetadata )
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playlist_t *p_playlist = PL;
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playlist_item_t* p_item = playlist_CurrentPlayingItem( p_playlist );
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GetInputMeta( p_item->p_input, &args );
352
DBUS_METHOD( GetCaps )
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ADD_INT32( &INTF->p_sys->i_caps );
362
/* Media Player information */
364
DBUS_METHOD( Identity )
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if( asprintf( &psz_identity, "%s %s", PACKAGE, VERSION ) != -1 )
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ADD_STRING( &psz_identity );
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free( psz_identity );
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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DBUS_METHOD( AddTrack )
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{ /* add the string to the playlist, and play it if the boolean is true */
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dbus_error_init( &error );
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dbus_message_get_args( p_from, &error,
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DBUS_TYPE_STRING, &psz_mrl,
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DBUS_TYPE_BOOLEAN, &b_play,
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if( dbus_error_is_set( &error ) )
402
msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
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dbus_error_free( &error );
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
408
playlist_Add( PL, psz_mrl, NULL, PLAYLIST_APPEND |
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( ( b_play == TRUE ) ? PLAYLIST_GO : 0 ) ,
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PLAYLIST_END, true, false );
412
dbus_int32_t i_success = 0;
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ADD_INT32( &i_success );
418
DBUS_METHOD( GetCurrentTrack )
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playlist_t *p_playlist = PL;
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dbus_int32_t i_position = PL->i_current_index;
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ADD_INT32( &i_position );
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DBUS_METHOD( GetMetadata )
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dbus_error_init( &error );
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dbus_int32_t i_position;
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playlist_t *p_playlist = PL;
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dbus_message_get_args( p_from, &error,
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DBUS_TYPE_INT32, &i_position,
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if( dbus_error_is_set( &error ) )
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msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
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dbus_error_free( &error );
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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if( i_position < p_playlist->current.i_size )
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GetInputMeta( p_playlist->current.p_elems[i_position]->p_input, &args );
465
DBUS_METHOD( GetLength )
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playlist_t *p_playlist = PL;
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dbus_int32_t i_elements = PL->current.i_size;
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ADD_INT32( &i_elements );
479
DBUS_METHOD( DelTrack )
484
dbus_error_init( &error );
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dbus_int32_t i_position;
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playlist_t *p_playlist = PL;
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dbus_message_get_args( p_from, &error,
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DBUS_TYPE_INT32, &i_position,
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if( dbus_error_is_set( &error ) )
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msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
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dbus_error_free( &error );
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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if( i_position < p_playlist->current.i_size )
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playlist_DeleteFromInput( p_playlist,
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p_playlist->current.p_elems[i_position]->p_input,
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DBUS_METHOD( SetLoop )
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dbus_error_init( &error );
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dbus_message_get_args( p_from, &error,
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DBUS_TYPE_BOOLEAN, &b_loop,
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if( dbus_error_is_set( &error ) )
528
msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
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dbus_error_free( &error );
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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var_SetBool( PL, "loop", ( b_loop == TRUE ) );
539
DBUS_METHOD( Repeat )
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dbus_bool_t b_repeat;
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dbus_error_init( &error );
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dbus_message_get_args( p_from, &error,
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DBUS_TYPE_BOOLEAN, &b_repeat,
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if( dbus_error_is_set( &error ) )
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msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
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dbus_error_free( &error );
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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var_SetBool( PL, "repeat", ( b_repeat == TRUE ) );
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DBUS_METHOD( SetRandom )
571
dbus_bool_t b_random;
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dbus_error_init( &error );
574
dbus_message_get_args( p_from, &error,
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DBUS_TYPE_BOOLEAN, &b_random,
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if( dbus_error_is_set( &error ) )
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msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
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dbus_error_free( &error );
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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var_SetBool( PL, "random", ( b_random == TRUE ) );
590
/*****************************************************************************
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* Introspection method
592
*****************************************************************************/
594
DBUS_METHOD( handle_introspect_root )
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{ /* handles introspection of root object */
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ADD_STRING( &psz_introspection_xml_data_root );
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DBUS_METHOD( handle_introspect_player )
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ADD_STRING( &psz_introspection_xml_data_player );
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DBUS_METHOD( handle_introspect_tracklist )
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ADD_STRING( &psz_introspection_xml_data_tracklist );
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/*****************************************************************************
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* handle_*: answer to incoming messages
623
*****************************************************************************/
625
#define METHOD_FUNC( method, function ) \
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else if( dbus_message_is_method_call( p_from, MPRIS_DBUS_INTERFACE, method ) )\
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return function( p_conn, p_from, p_this )
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DBUS_METHOD( handle_root )
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if( dbus_message_is_method_call( p_from,
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DBUS_INTERFACE_INTROSPECTABLE, "Introspect" ) )
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return handle_introspect_root( p_conn, p_from, p_this );
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/* here D-Bus method's names are associated to an handler */
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METHOD_FUNC( "Identity", Identity );
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METHOD_FUNC( "MprisVersion", MprisVersion );
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METHOD_FUNC( "Quit", Quit );
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
646
DBUS_METHOD( handle_player )
648
if( dbus_message_is_method_call( p_from,
649
DBUS_INTERFACE_INTROSPECTABLE, "Introspect" ) )
650
return handle_introspect_player( p_conn, p_from, p_this );
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/* here D-Bus method's names are associated to an handler */
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METHOD_FUNC( "Prev", Prev );
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METHOD_FUNC( "Next", Next );
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METHOD_FUNC( "Stop", Stop );
657
METHOD_FUNC( "Play", Play );
658
METHOD_FUNC( "Pause", Pause );
659
METHOD_FUNC( "Repeat", Repeat );
660
METHOD_FUNC( "VolumeSet", VolumeSet );
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METHOD_FUNC( "VolumeGet", VolumeGet );
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METHOD_FUNC( "PositionSet", PositionSet );
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METHOD_FUNC( "PositionGet", PositionGet );
664
METHOD_FUNC( "GetStatus", GetStatus );
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METHOD_FUNC( "GetMetadata", GetCurrentMetadata );
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METHOD_FUNC( "GetCaps", GetCaps );
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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DBUS_METHOD( handle_tracklist )
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if( dbus_message_is_method_call( p_from,
674
DBUS_INTERFACE_INTROSPECTABLE, "Introspect" ) )
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return handle_introspect_tracklist( p_conn, p_from, p_this );
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/* here D-Bus method's names are associated to an handler */
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METHOD_FUNC( "GetMetadata", GetMetadata );
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METHOD_FUNC( "GetCurrentTrack", GetCurrentTrack );
681
METHOD_FUNC( "GetLength", GetLength );
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METHOD_FUNC( "AddTrack", AddTrack );
683
METHOD_FUNC( "DelTrack", DelTrack );
684
METHOD_FUNC( "SetLoop", SetLoop );
685
METHOD_FUNC( "SetRandom", SetRandom );
687
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
690
/*****************************************************************************
691
* Open: initialize interface
692
*****************************************************************************/
694
static int Open( vlc_object_t *p_this )
695
{ /* initialisation of the connection */
696
intf_thread_t *p_intf = (intf_thread_t*)p_this;
697
intf_sys_t *p_sys = malloc( sizeof( intf_sys_t ) );
698
playlist_t *p_playlist;
699
DBusConnection *p_conn;
705
p_sys->b_meta_read = false;
706
p_sys->i_caps = CAPS_NONE;
707
p_sys->b_dead = false;
708
p_sys->p_input = NULL;
710
dbus_error_init( &error );
712
/* connect to the session bus */
713
p_conn = dbus_bus_get( DBUS_BUS_SESSION, &error );
716
msg_Err( p_this, "Failed to connect to the D-Bus session daemon: %s",
718
dbus_error_free( &error );
723
/* register a well-known name on the bus */
724
dbus_bus_request_name( p_conn, VLC_MPRIS_DBUS_SERVICE, 0, &error );
725
if( dbus_error_is_set( &error ) )
727
msg_Err( p_this, "Error requesting service " VLC_MPRIS_DBUS_SERVICE
728
": %s", error.message );
729
dbus_error_free( &error );
734
/* we register the objects */
735
dbus_connection_register_object_path( p_conn, MPRIS_DBUS_ROOT_PATH,
736
&vlc_dbus_root_vtable, p_this );
737
dbus_connection_register_object_path( p_conn, MPRIS_DBUS_PLAYER_PATH,
738
&vlc_dbus_player_vtable, p_this );
739
dbus_connection_register_object_path( p_conn, MPRIS_DBUS_TRACKLIST_PATH,
740
&vlc_dbus_tracklist_vtable, p_this );
742
dbus_connection_flush( p_conn );
744
p_intf->pf_run = Run;
745
p_intf->p_sys = p_sys;
746
p_sys->p_conn = p_conn;
747
p_sys->p_events = vlc_array_new();
748
vlc_mutex_init( &p_sys->lock );
750
p_playlist = pl_Get( p_intf );
751
p_sys->p_playlist = p_playlist;
753
var_AddCallback( p_playlist, "item-current", AllCallback, p_intf );
754
var_AddCallback( p_playlist, "intf-change", AllCallback, p_intf );
755
var_AddCallback( p_playlist, "playlist-item-append", AllCallback, p_intf );
756
var_AddCallback( p_playlist, "playlist-item-deleted", AllCallback, p_intf );
757
var_AddCallback( p_playlist, "random", AllCallback, p_intf );
758
var_AddCallback( p_playlist, "repeat", AllCallback, p_intf );
759
var_AddCallback( p_playlist, "loop", AllCallback, p_intf );
761
UpdateCaps( p_intf );
766
/*****************************************************************************
767
* Close: destroy interface
768
*****************************************************************************/
770
static void Close ( vlc_object_t *p_this )
772
intf_thread_t *p_intf = (intf_thread_t*) p_this;
773
intf_sys_t *p_sys = p_intf->p_sys;
774
playlist_t *p_playlist = p_sys->p_playlist;
776
var_DelCallback( p_playlist, "item-current", AllCallback, p_intf );
777
var_DelCallback( p_playlist, "intf-change", AllCallback, p_intf );
778
var_DelCallback( p_playlist, "playlist-item-append", AllCallback, p_intf );
779
var_DelCallback( p_playlist, "playlist-item-deleted", AllCallback, p_intf );
780
var_DelCallback( p_playlist, "random", AllCallback, p_intf );
781
var_DelCallback( p_playlist, "repeat", AllCallback, p_intf );
782
var_DelCallback( p_playlist, "loop", AllCallback, p_intf );
786
var_DelCallback( p_sys->p_input, "state", AllCallback, p_intf );
787
vlc_object_release( p_sys->p_input );
790
dbus_connection_unref( p_sys->p_conn );
792
// Free the events array
793
for( int i = 0; i < vlc_array_count( p_sys->p_events ); i++ )
795
callback_info_t* info = vlc_array_item_at_index( p_sys->p_events, i );
798
vlc_mutex_destroy( &p_sys->lock );
799
vlc_array_destroy( p_sys->p_events );
803
/*****************************************************************************
805
*****************************************************************************/
807
static void Run ( intf_thread_t *p_intf )
811
if( dbus_connection_get_dispatch_status(p_intf->p_sys->p_conn)
812
== DBUS_DISPATCH_COMPLETE )
813
msleep( INTF_IDLE_SLEEP );
814
int canc = vlc_savecancel();
815
dbus_connection_read_write_dispatch( p_intf->p_sys->p_conn, 0 );
817
/* Get the list of events to process
819
* We can't keep the lock on p_intf->p_sys->p_events, else we risk a
821
* The signal functions could lock mutex X while p_events is locked;
822
* While some other function in vlc (playlist) might lock mutex X
823
* and then set a variable which would call AllCallback(), which itself
824
* needs to lock p_events to add a new event.
826
vlc_mutex_lock( &p_intf->p_sys->lock );
827
int i_events = vlc_array_count( p_intf->p_sys->p_events );
828
callback_info_t* info[i_events];
829
for( int i = i_events - 1; i >= 0; i-- )
831
info[i] = vlc_array_item_at_index( p_intf->p_sys->p_events, i );
832
vlc_array_remove( p_intf->p_sys->p_events, i );
834
vlc_mutex_unlock( &p_intf->p_sys->lock );
836
for( int i = 0; i < i_events; i++ )
838
switch( info[i]->signal )
840
case SIGNAL_ITEM_CURRENT:
841
TrackChange( p_intf );
843
case SIGNAL_INTF_CHANGE:
844
case SIGNAL_PLAYLIST_ITEM_APPEND:
845
case SIGNAL_PLAYLIST_ITEM_DELETED:
846
TrackListChangeEmit( p_intf, info[i]->signal, info[i]->i_node );
851
StatusChangeEmit( p_intf );
854
StateChange( p_intf, info[i]->i_input_state );
861
vlc_restorecancel( canc );
866
// Get all the callbacks
867
static int AllCallback( vlc_object_t *p_this, const char *psz_var,
868
vlc_value_t oldval, vlc_value_t newval, void *p_data )
872
intf_thread_t *p_intf = (intf_thread_t*)p_data;
874
callback_info_t *info = malloc( sizeof( callback_info_t ) );
878
// Wich event is it ?
879
if( !strcmp( "item-current", psz_var ) )
880
info->signal = SIGNAL_ITEM_CURRENT;
881
else if( !strcmp( "intf-change", psz_var ) )
882
info->signal = SIGNAL_INTF_CHANGE;
883
else if( !strcmp( "playlist-item-append", psz_var ) )
885
info->signal = SIGNAL_PLAYLIST_ITEM_APPEND;
886
info->i_node = ((playlist_add_t*)newval.p_address)->i_node;
888
else if( !strcmp( "playlist-item-deleted", psz_var ) )
889
info->signal = SIGNAL_PLAYLIST_ITEM_DELETED;
890
else if( !strcmp( "random", psz_var ) )
891
info->signal = SIGNAL_RANDOM;
892
else if( !strcmp( "repeat", psz_var ) )
893
info->signal = SIGNAL_REPEAT;
894
else if( !strcmp( "loop", psz_var ) )
895
info->signal = SIGNAL_LOOP;
896
else if( !strcmp( "state", psz_var ) )
898
info->signal = SIGNAL_STATE;
899
info->i_input_state = newval.i_int;
905
vlc_mutex_lock( &p_intf->p_sys->lock );
906
vlc_array_append( p_intf->p_sys->p_events, info );
907
vlc_mutex_unlock( &p_intf->p_sys->lock );
911
/******************************************************************************
912
* CapsChange: player capabilities change signal
913
*****************************************************************************/
914
DBUS_SIGNAL( CapsChangeSignal )
916
SIGNAL_INIT( MPRIS_DBUS_PLAYER_PATH, "CapsChange" );
919
ADD_INT32( &((intf_thread_t*)p_data)->p_sys->i_caps );
923
/******************************************************************************
924
* TrackListChange: tracklist order / length change signal
925
*****************************************************************************/
926
DBUS_SIGNAL( TrackListChangeSignal )
927
{ /* emit the new tracklist lengh */
928
SIGNAL_INIT( MPRIS_DBUS_TRACKLIST_PATH, "TrackListChange");
932
dbus_int32_t i_elements = ((intf_thread_t*)p_data)->p_sys->p_playlist->current.i_size;
934
ADD_INT32( &i_elements );
938
/*****************************************************************************
939
* TrackListChangeEmit: Emits the TrackListChange signal
940
*****************************************************************************/
941
/* FIXME: It is not called on tracklist reordering */
942
static int TrackListChangeEmit( intf_thread_t *p_intf, int signal, int i_node )
944
// "playlist-item-append"
945
if( signal == SIGNAL_PLAYLIST_ITEM_APPEND )
947
/* don't signal when items are added/removed in p_category */
948
playlist_t *p_playlist = p_intf->p_sys->p_playlist;
950
playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_node );
952
while( p_item->p_parent )
953
p_item = p_item->p_parent;
954
if( p_item == p_playlist->p_root_category )
962
if( p_intf->p_sys->b_dead )
965
UpdateCaps( p_intf );
966
TrackListChangeSignal( p_intf->p_sys->p_conn, p_intf );
969
/*****************************************************************************
970
* TrackChange: Playlist item change callback
971
*****************************************************************************/
973
DBUS_SIGNAL( TrackChangeSignal )
974
{ /* emit the metadata of the new item */
975
SIGNAL_INIT( MPRIS_DBUS_PLAYER_PATH, "TrackChange" );
978
input_item_t *p_item = (input_item_t*) p_data;
979
GetInputMeta ( p_item, &args );
984
/*****************************************************************************
985
* StatusChange: Player status change signal
986
*****************************************************************************/
988
DBUS_SIGNAL( StatusChangeSignal )
989
{ /* send the updated status info on the bus */
990
SIGNAL_INIT( MPRIS_DBUS_PLAYER_PATH, "StatusChange" );
993
/* we're called from a callback of input_thread_t, so it can not be
994
* destroyed before we return */
995
MarshalStatus( (intf_thread_t*) p_data, &args );
1000
/*****************************************************************************
1001
* StateChange: callback on input "state"
1002
*****************************************************************************/
1003
//static int StateChange( vlc_object_t *p_this, const char* psz_var,
1004
// vlc_value_t oldval, vlc_value_t newval, void *p_data )
1005
static int StateChange( intf_thread_t *p_intf, int i_input_state )
1007
intf_sys_t *p_sys = p_intf->p_sys;
1008
playlist_t *p_playlist = p_sys->p_playlist;
1009
input_thread_t *p_input;
1010
input_item_t *p_item;
1012
if( p_intf->p_sys->b_dead )
1015
UpdateCaps( p_intf );
1017
if( !p_sys->b_meta_read && i_input_state == PLAYING_S )
1019
p_input = playlist_CurrentInput( p_playlist );
1022
p_item = input_GetItem( p_input );
1025
p_sys->b_meta_read = true;
1026
TrackChangeSignal( p_sys->p_conn, p_item );
1028
vlc_object_release( p_input );
1032
if( i_input_state == PLAYING_S || i_input_state == PAUSE_S ||
1033
i_input_state == END_S )
1035
StatusChangeSignal( p_sys->p_conn, p_intf );
1041
/*****************************************************************************
1042
* StatusChangeEmit: Emits the StatusChange signal
1043
*****************************************************************************/
1044
static int StatusChangeEmit( intf_thread_t * p_intf )
1046
if( p_intf->p_sys->b_dead )
1049
UpdateCaps( p_intf );
1050
StatusChangeSignal( p_intf->p_sys->p_conn, p_intf );
1054
/*****************************************************************************
1055
* TrackChange: callback on playlist "item-current"
1056
*****************************************************************************/
1057
static int TrackChange( intf_thread_t *p_intf )
1059
intf_sys_t *p_sys = p_intf->p_sys;
1060
playlist_t *p_playlist = p_sys->p_playlist;
1061
input_thread_t *p_input = NULL;
1062
input_item_t *p_item = NULL;
1064
if( p_intf->p_sys->b_dead )
1067
if( p_sys->p_input )
1069
var_DelCallback( p_sys->p_input, "state", AllCallback, p_intf );
1070
vlc_object_release( p_sys->p_input );
1071
p_sys->p_input = NULL;
1074
p_sys->b_meta_read = false;
1076
p_input = playlist_CurrentInput( p_playlist );
1082
p_item = input_GetItem( p_input );
1085
vlc_object_release( p_input );
1086
return VLC_EGENERIC;
1089
if( input_item_IsPreparsed( p_item ) )
1091
p_sys->b_meta_read = true;
1092
TrackChangeSignal( p_sys->p_conn, p_item );
1095
p_sys->p_input = p_input;
1096
var_AddCallback( p_input, "state", AllCallback, p_intf );
1101
/*****************************************************************************
1102
* UpdateCaps: update p_sys->i_caps
1103
* This function have to be called with the playlist unlocked
1104
****************************************************************************/
1105
static int UpdateCaps( intf_thread_t* p_intf )
1107
intf_sys_t* p_sys = p_intf->p_sys;
1108
dbus_int32_t i_caps = CAPS_CAN_HAS_TRACKLIST;
1109
playlist_t* p_playlist = p_sys->p_playlist;
1112
if( p_playlist->current.i_size > 0 )
1113
i_caps |= CAPS_CAN_PLAY | CAPS_CAN_GO_PREV | CAPS_CAN_GO_NEXT;
1116
input_thread_t* p_input = playlist_CurrentInput( p_playlist );
1119
/* XXX: if UpdateCaps() is called too early, these are
1120
* unconditionnaly true */
1121
if( var_GetBool( p_input, "can-pause" ) )
1122
i_caps |= CAPS_CAN_PAUSE;
1123
if( var_GetBool( p_input, "can-seek" ) )
1124
i_caps |= CAPS_CAN_SEEK;
1125
vlc_object_release( p_input );
1128
if( p_sys->b_meta_read )
1129
i_caps |= CAPS_CAN_PROVIDE_METADATA;
1131
if( i_caps != p_intf->p_sys->i_caps )
1133
p_sys->i_caps = i_caps;
1134
CapsChangeSignal( p_intf->p_sys->p_conn, (vlc_object_t*)p_intf );
1140
/*****************************************************************************
1141
* GetInputMeta: Fill a DBusMessage with the given input item metadata
1142
*****************************************************************************/
1144
#define ADD_META( entry, type, data ) \
1146
dbus_message_iter_open_container( &dict, DBUS_TYPE_DICT_ENTRY, \
1147
NULL, &dict_entry ); \
1148
dbus_message_iter_append_basic( &dict_entry, DBUS_TYPE_STRING, \
1149
&ppsz_meta_items[entry] ); \
1150
dbus_message_iter_open_container( &dict_entry, DBUS_TYPE_VARIANT, \
1151
type##_AS_STRING, &variant ); \
1152
dbus_message_iter_append_basic( &variant, \
1155
dbus_message_iter_close_container( &dict_entry, &variant ); \
1156
dbus_message_iter_close_container( &dict, &dict_entry ); }
1158
#define ADD_VLC_META_STRING( entry, item ) \
1160
char * psz = input_item_Get##item( p_input );\
1161
ADD_META( entry, DBUS_TYPE_STRING, \
1166
static int GetInputMeta( input_item_t* p_input,
1167
DBusMessageIter *args )
1169
DBusMessageIter dict, dict_entry, variant;
1170
/** The duration of the track can be expressed in second, milli-seconds and
1172
dbus_int64_t i_mtime = input_item_GetDuration( p_input );
1173
dbus_uint32_t i_time = i_mtime / 1000000;
1174
dbus_int64_t i_length = i_mtime / 1000;
1176
const char* ppsz_meta_items[] =
1178
/* Official MPRIS metas */
1179
"location", "title", "artist", "album", "tracknumber", "time", "mtime",
1180
"genre", "rating", "date", "arturl",
1181
"audio-bitrate", "audio-samplerate", "video-bitrate",
1182
/* VLC specifics metas */
1183
"audio-codec", "copyright", "description", "encodedby", "language", "length",
1184
"nowplaying", "publisher", "setting", "status", "trackid", "url",
1188
dbus_message_iter_open_container( args, DBUS_TYPE_ARRAY, "{sv}", &dict );
1190
ADD_VLC_META_STRING( 0, URI );
1191
ADD_VLC_META_STRING( 1, Title );
1192
ADD_VLC_META_STRING( 2, Artist );
1193
ADD_VLC_META_STRING( 3, Album );
1194
ADD_VLC_META_STRING( 4, TrackNum );
1195
ADD_META( 5, DBUS_TYPE_UINT32, i_time );
1196
ADD_META( 6, DBUS_TYPE_UINT32, i_mtime );
1197
ADD_VLC_META_STRING( 7, Genre );
1198
ADD_VLC_META_STRING( 8, Rating );
1199
ADD_VLC_META_STRING( 9, Date );
1200
ADD_VLC_META_STRING( 10, ArtURL );
1202
ADD_VLC_META_STRING( 15, Copyright );
1203
ADD_VLC_META_STRING( 16, Description );
1204
ADD_VLC_META_STRING( 17, EncodedBy );
1205
ADD_VLC_META_STRING( 18, Language );
1206
ADD_META( 19, DBUS_TYPE_INT64, i_length );
1207
ADD_VLC_META_STRING( 20, NowPlaying );
1208
ADD_VLC_META_STRING( 21, Publisher );
1209
ADD_VLC_META_STRING( 22, Setting );
1210
ADD_VLC_META_STRING( 24, TrackID );
1211
ADD_VLC_META_STRING( 25, URL );
1213
vlc_mutex_lock( &p_input->lock );
1214
if( p_input->p_meta )
1216
int i_status = vlc_meta_GetStatus( p_input->p_meta );
1217
ADD_META( 23, DBUS_TYPE_INT32, i_status );
1219
vlc_mutex_unlock( &p_input->lock );
1221
dbus_message_iter_close_container( args, &dict );
1226
#undef ADD_VLC_META_STRING
1228
/*****************************************************************************
1229
* MarshalStatus: Fill a DBusMessage with the current player status
1230
*****************************************************************************/
1232
static int MarshalStatus( intf_thread_t* p_intf, DBusMessageIter* args )
1233
{ /* This is NOT the right way to do that, it would be better to sore
1234
the status information in p_sys and update it on change, thus
1235
avoiding a long lock */
1237
DBusMessageIter status;
1238
dbus_int32_t i_state, i_random, i_repeat, i_loop;
1240
playlist_t* p_playlist = p_intf->p_sys->p_playlist;
1241
input_thread_t* p_input = NULL;
1245
p_input = playlist_CurrentInput( p_playlist );
1248
i_val = var_GetInteger( p_input, "state" );
1249
if( i_val >= END_S )
1251
else if( i_val == PAUSE_S )
1253
else if( i_val <= PLAYING_S )
1255
vlc_object_release( p_input );
1258
i_random = var_CreateGetBool( p_playlist, "random" );
1260
i_repeat = var_CreateGetBool( p_playlist, "repeat" );
1262
i_loop = var_CreateGetBool( p_playlist, "loop" );
1264
dbus_message_iter_open_container( args, DBUS_TYPE_STRUCT, NULL, &status );
1265
dbus_message_iter_append_basic( &status, DBUS_TYPE_INT32, &i_state );
1266
dbus_message_iter_append_basic( &status, DBUS_TYPE_INT32, &i_random );
1267
dbus_message_iter_append_basic( &status, DBUS_TYPE_INT32, &i_repeat );
1268
dbus_message_iter_append_basic( &status, DBUS_TYPE_INT32, &i_loop );
1269
dbus_message_iter_close_container( args, &status );
added
removed
modules/control/dbus.c
