Fix some compiler warnings

Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

Sources/VLCMedia.m

@@ -321,8 +321,11 @@ static void HandleMediaParsedChanged(const libvlc_event_t * event, void * self)
         [self parseIfNeeded];
 
         // wait until we are preparsed
-        while (!_length && !libvlc_media_is_parsed(p_md) && [aDate timeIntervalSinceNow] > 0)
-            usleep( thread_sleep );
+       libvlc_media_parsed_status_t status = libvlc_media_get_parsed_status(p_md);
+       while (!_length && !(status == VLCMediaParseStatusFailed || status == VLCMediaParseStatusDone) && [aDate timeIntervalSinceNow] > 0) {
+          usleep( thread_sleep );
+          status = libvlc_media_get_parsed_status(p_md);
+       }
 
         // So we're done waiting, but sometimes we trap the fact that the parsing
         // was done before the length gets assigned, so lets go ahead and assign
@@ -336,14 +339,16 @@ static void HandleMediaParsedChanged(const libvlc_event_t * event, void * self)
 
 - (BOOL)isParsed
 {
-    VLCMediaParseStatus status = [self parseStatus];
-    return VLCMediaParseStatusFailed || VLCMediaParseStatusDone;
+   VLCMediaParseStatus status = [self parseStatus];
+   return (status == VLCMediaParseStatusFailed || status == VLCMediaParseStatusDone) ? YES:NO;
 }
 
 - (VLCMediaParseStatus)parseStatus
 {
-    libvlc_media_parsed_status_t status = libvlc_media_get_parsed_status(p_md);
-    return status;
+   if ( !p_md )
+      return VLCMediaParseStatusFailed;
+   libvlc_media_parsed_status_t status = libvlc_media_get_parsed_status(p_md);
+   return (VLCMediaParseStatus)status;
 }
 
 - (void)parse

Sources/VLCMediaDiscoverer.m

@@ -57,7 +57,7 @@ NSString *const VLCMediaDiscovererCategory = @"VLCMediaDiscovererCategory";
 + (NSArray *)availableMediaDiscovererForCategoryType:(VLCMediaDiscovererCategoryType)categoryType
 {
     libvlc_media_discoverer_description **discoverers;
-    unsigned numberOfDiscoverers = libvlc_media_discoverer_list_get([VLCLibrary sharedInstance], categoryType, &discoverers);
+    unsigned numberOfDiscoverers = libvlc_media_discoverer_list_get([VLCLibrary sharedInstance], (libvlc_media_discoverer_category)categoryType, &discoverers);
 
     if (numberOfDiscoverers == 0) {
         libvlc_media_discoverer_list_release(discoverers, numberOfDiscoverers);

Sources/VLCMediaThumbnailer.m

@@ -143,7 +143,8 @@ static void display(void *opaque, void *picture)
 {
     NSAssert(!_data, @"We are already fetching a thumbnail");
 
-    if (![_media isParsed]) {
+   VLCMediaParseStatus parseStatus = [_media parseStatus];
+   if (!(parseStatus == VLCMediaParseStatusFailed || parseStatus == VLCMediaParseStatusDone)) {
         [_media addObserver:self forKeyPath:@"parsed" options:0 context:NULL];
         [_media parseWithOptions:VLCMediaParseLocal];
         NSAssert(!_parsingTimeoutTimer, @"We already have a timer around");
@@ -242,7 +243,8 @@ static void display(void *opaque, void *picture)
 - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
 {
     if (object == _media && [keyPath isEqualToString:@"parsed"]) {
-        if ([_media isParsed]) {
+       VLCMediaParseStatus parseStatus = [_media parseStatus];
+       if (parseStatus == VLCMediaParseStatusFailed || parseStatus == VLCMediaParseStatusDone) {
             [_parsingTimeoutTimer invalidate];
             _parsingTimeoutTimer = nil;
             [_media removeObserver:self forKeyPath:@"parsed"];