New MSN (c) (tm) (r) "What I'm Listening To" plugin.

configure.ac

@@ -1046,7 +1046,7 @@ dnl
 if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
     VLC_ADD_PLUGINS([screensaver])
 elif test "${SYS}" != "mingwce"; then
-    VLC_ADD_PLUGINS([ntservice access_smb dmo])
+    VLC_ADD_PLUGINS([ntservice access_smb dmo msn])
     VLC_ADD_LDFLAGS([dmo],[-lole32])
 else
     VLC_ADD_PLUGINS([win32text])

modules/misc/Modules.am

@@ -10,3 +10,4 @@ SOURCES_logger = logger.c
 SOURCES_vod_rtsp = rtsp.c
 SOURCES_gnutls = gnutls.c
 SOURCES_svg = svg.c
+SOURCES_msn = msn.c

modules/misc/msn.c

+/*****************************************************************************
+ * msn.c : msn title plugin
+ *****************************************************************************
+ * Copyright (C) 2005 the VideoLAN team
+ * $Id$
+ *
+ * Authors: Antoine Cellerier <dionoea -at- videolan -dot- org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <stdlib.h>                                      /* malloc(), free() */
+#include <string.h>
+
+#include <errno.h>                                                 /* ENOMEM */
+#include <stdio.h>
+
+#include <vlc/vlc.h>
+#include <vlc/intf.h>
+#include <vlc_meta.h>
+
+
+/*****************************************************************************
+ * intf_sys_t: description and status of log interface
+ *****************************************************************************/
+struct intf_sys_t
+{
+    char *psz_format;
+};
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static int  Open    ( vlc_object_t * );
+static void Close   ( vlc_object_t * );
+static void Run     ( intf_thread_t * );
+
+static int ItemChange( vlc_object_t *, const char *,
+                       vlc_value_t, vlc_value_t, void * );
+static int SendToMSN( char * psz_msg );
+
+#define MSN_MAX_LENGTH 256
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************
+ * This module should be used on windows with MSN (i think that you need to
+ * have MSN 7 or newer) to "advertise" what you are playing in VLC.
+ * You need to enable the "What I'm Listening To" option in MSN.
+ *****************************************************************************/
+#define FORMAT_DEFAULT "{0} - {1}"
+#define FORMAT_TEXT N_("MSN Title format string")
+#define FORMAT_LONGTEXT N_("MSN Title format string. " \
+"{0} artist, {1} title, {2} album")
+
+vlc_module_begin();
+    set_category( CAT_INTERFACE );
+    set_subcategory( SUBCAT_INTERFACE_CONTROL );
+    set_shortname( N_( "MSN" ) );
+    set_description( _("MSN Title Plugin") );
+
+    add_string( "msn-format", FORMAT_DEFAULT, NULL,
+                FORMAT_TEXT, FORMAT_LONGTEXT, VLC_FALSE );
+
+    set_capability( "interface", 0 );
+    set_callbacks( Open, Close );
+vlc_module_end();
+
+/*****************************************************************************
+ * Open: initialize and create stuff
+ *****************************************************************************/
+static int Open( vlc_object_t *p_this )
+{
+    intf_thread_t *p_intf = (intf_thread_t *)p_this;
+    playlist_t *p_playlist;
+
+    /* Allocate instance and initialize some members */
+    p_intf->p_sys = (intf_sys_t *)malloc( sizeof( intf_sys_t ) );
+    if( p_intf->p_sys == NULL )
+    {
+        msg_Err( p_intf, "out of memory" );
+        return -1;
+    }
+
+    p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
+                                                FIND_ANYWHERE );
+
+
+    p_intf->p_sys->psz_format = config_GetPsz( p_intf, "msn-format" );
+    if( !p_intf->p_sys->psz_format )
+    {
+        msg_Dbg( p_intf, "no format provided" );
+        p_intf->p_sys->psz_format = strdup( FORMAT_DEFAULT );
+    }
+    msg_Dbg( p_intf, "using format: %s", p_intf->p_sys->psz_format );
+
+    if( !p_playlist )
+    {
+        msg_Err( p_intf, "could not find playlist object" );
+        free( p_intf->p_sys->psz_format );
+        free( p_intf->p_sys );
+        return -1;
+    }
+
+    var_AddCallback( p_playlist, "item-change", ItemChange, p_intf );
+    vlc_object_release( p_playlist );
+
+    p_intf->pf_run = Run;
+
+    return 0;
+}
+
+/*****************************************************************************
+ * Close: destroy interface stuff
+ *****************************************************************************/
+static void Close( vlc_object_t *p_this )
+{
+    intf_thread_t *p_intf = (intf_thread_t *)p_this;
+
+    /* clear the MSN stuff ... else it looks like we're still playing
+     * something although VLC (or the MSN plugin) is closed */
+    SendToMSN( "\\0Music\\01\\0\\0\\0\\0\\0\\0\\0" );
+
+    /* Destroy structure */
+    free( p_intf->p_sys->psz_format );
+    free( p_intf->p_sys );
+}
+
+/*****************************************************************************
+ * Run
+ *****************************************************************************/
+static void Run( intf_thread_t *p_intf )
+{
+    msleep( INTF_IDLE_SLEEP );
+}
+
+/*****************************************************************************
+ * ItemChange: Playlist item change callback
+ *****************************************************************************/
+static int ItemChange( vlc_object_t *p_this, const char *psz_var,
+                       vlc_value_t oldval, vlc_value_t newval, void *param )
+{
+    intf_thread_t *p_intf = (intf_thread_t *)param;
+
+    char psz_tmp[MSN_MAX_LENGTH];
+    char *psz_title = NULL;
+    char *psz_artist = NULL;
+    char *psz_album = NULL;
+
+    int i,j;
+
+    if( !p_intf->p_sys ) return VLC_SUCCESS;
+
+    input_thread_t *p_input =
+        (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
+                                           FIND_ANYWHERE );
+    if( !p_input || p_input->b_dead || !p_input->input.p_item->psz_name )
+    {
+        /* Not playing anything ... */
+        SendToMSN( "\\0Music\\01\\0\\0\\0\\0\\0\\0\\0" );
+        return VLC_SUCCESS;
+    }
+
+    /* Playing something ... */
+    for( i = 0; i < p_input->input.p_item->i_categories; i++ )
+    {
+        info_category_t *p_cat = p_input->input.p_item->pp_categories[i];
+        for( j = 0; j < p_cat->i_infos; j++ )
+        {
+            info_t *p_info = p_cat->pp_infos[j];
+
+            if( !strcmp( p_info->psz_name, VLC_META_ARTIST ) )
+            {
+                psz_artist = strdup( p_info->psz_value );
+            }
+            else if( !strcmp( p_info->psz_name, "Album/movie/show title" ) )
+            {
+                psz_album = strdup( p_info->psz_value );
+            }
+        }
+    }
+    psz_title = strdup( p_input->input.p_item->psz_name );
+    if( psz_title == NULL ) psz_title = strdup( N_("(no title)") );
+    if( psz_artist == NULL ) psz_artist = strdup( N_("(no artist)") );
+    if( psz_album == NULL ) psz_album = strdup( N_("(no album)") );
+    snprintf( psz_tmp,
+              MSN_MAX_LENGTH,
+              "\\0Music\\01\\0%s\\0%s\\0%s\\0%s\\0\\0\\0",
+              p_intf->p_sys->psz_format,
+              //FORMAT_DEFAULT,
+              psz_title,
+              psz_artist,
+              psz_album );
+    msg_Dbg( p_intf, "using format: %s", p_intf->p_sys->psz_format );
+    msg_Dbg( p_intf, "---" );
+    free( psz_title );
+    free( psz_artist );
+    free( psz_album );
+
+    SendToMSN( psz_tmp );
+
+    return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * SendToMSN
+ *****************************************************************************/
+static int SendToMSN( char *psz_msg )
+{
+    COPYDATASTRUCT msndata;
+    HWND msnui = NULL;
+
+    wchar_t buffer[MSN_MAX_LENGTH];
+
+    mbstowcs( buffer, psz_msg, MSN_MAX_LENGTH );
+
+    msndata.dwData = 0x547;
+    msndata.lpData = &buffer;
+    msndata.cbData = (lstrlenW(buffer)*2)+2;
+
+    while( ( msnui = FindWindowEx( NULL, msnui, "MsnMsgrUIManager", NULL ) ) )
+    {
+        SendMessage(msnui, WM_COPYDATA, (WPARAM)NULL, (LPARAM)&msndata);
+    }
+
+    return VLC_SUCCESS;
+}