macosx/framework: handle duration changed events.

projects/macosx/framework/Sources/VLCMedia.m

@@ -118,16 +118,16 @@ static void HandleMediaMetaChanged(const libvlc_event_t * event, void * self)
     [pool release];
 }
 
-//static void HandleMediaDurationChanged(const libvlc_event_t * event, void * self)
-//{
-//    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
-//    
-//    [[VLCEventManager sharedManager] callOnMainThreadObject:self
-//                                                 withMethod:@selector(setLength:)
-//                                       withArgumentAsObject:[VLCTime timeWithNumber:
-//                                           [NSNumber numberWithLongLong:event->u.media_duration_changed.new_duration]]];
-//    [pool release];
-//}
+static void HandleMediaDurationChanged(const libvlc_event_t * event, void * self)
+{
+    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
+
+    [[VLCEventManager sharedManager] callOnMainThreadObject:self
+                                                 withMethod:@selector(setLength:)
+                                       withArgumentAsObject:[VLCTime timeWithNumber:
+                                           [NSNumber numberWithLongLong:event->u.media_duration_changed.new_duration]]];
+    [pool release];
+}
 
 static void HandleMediaStateChanged(const libvlc_event_t * event, void * self)
 {
@@ -232,7 +232,7 @@ static void HandleMediaSubItemAdded(const libvlc_event_t * event, void * self)
              * Before libvlc_event_detach. So this can't happen in dealloc */
             libvlc_event_manager_t * p_em = libvlc_media_event_manager(p_md);
             libvlc_event_detach(p_em, libvlc_MediaMetaChanged,     HandleMediaMetaChanged,     self, NULL);
-//            libvlc_event_detach(p_em, libvlc_MediaDurationChanged, HandleMediaDurationChanged, self, NULL);
+            libvlc_event_detach(p_em, libvlc_MediaDurationChanged, HandleMediaDurationChanged, self, NULL);
             libvlc_event_detach(p_em, libvlc_MediaStateChanged,    HandleMediaStateChanged,    self, NULL);
             libvlc_event_detach(p_em, libvlc_MediaSubItemAdded,    HandleMediaSubItemAdded,    self, NULL);
         }
@@ -295,6 +295,10 @@ static void HandleMediaSubItemAdded(const libvlc_event_t * event, void * self)
 
     if (!length)
     {
+        // Force preparsing of this item.
+        [self length];
+
+        // wait until we are preparsed
         while (!length && ![self isPreparsed] && [aDate timeIntervalSinceNow] > 0)
         {
             usleep( thread_sleep );
@@ -440,7 +444,7 @@ static void HandleMediaSubItemAdded(const libvlc_event_t * event, void * self)
 
     libvlc_event_manager_t * p_em = libvlc_media_event_manager( p_md );
     libvlc_event_attach(p_em, libvlc_MediaMetaChanged,     HandleMediaMetaChanged,     self, &ex);
-//    libvlc_event_attach(p_em, libvlc_MediaDurationChanged, HandleMediaDurationChanged, self, &ex);
+    libvlc_event_attach(p_em, libvlc_MediaDurationChanged, HandleMediaDurationChanged, self, &ex);
     libvlc_event_attach(p_em, libvlc_MediaStateChanged,    HandleMediaStateChanged,    self, &ex);
     libvlc_event_attach(p_em, libvlc_MediaSubItemAdded,    HandleMediaSubItemAdded,    self, &ex);