qtsound: fixes bug if no device is connected

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

modules/gui/macosx/open.m

@@ -322,6 +322,7 @@ static VLCOpen *_o_sharedMainInstance = nil;
     [[sharedWorkspace notificationCenter] addObserver:self selector:@selector(scanOpticalMedia:) name:NSWorkspaceDidUnmountNotification object:nil];
     [self performSelector:@selector(scanOpticalMedia:) withObject:nil afterDelay:2.0];
     [self performSelector:@selector(qtkChanged:) withObject:nil afterDelay:2.5];
+    [self performSelector:@selector(qtkAudioChanged:) withObject:nil afterDelay:3.0];
 
     [self setMRL: @""];
 }
@@ -517,6 +518,8 @@ static VLCOpen *_o_sharedMainInstance = nil;
 - (IBAction)qtkChanged:(id)sender
 {
     NSInteger i_selectedDevice = [o_qtk_device_pop indexOfSelectedItem];
+    if( [qtkvideoDevices count] >= 1 )
+    {
         NSValue *sizes = [[[[qtkvideoDevices objectAtIndex:i_selectedDevice] formatDescriptions] objectAtIndex: 0] attributeForKey: QTFormatDescriptionVideoEncodedPixelsSizeAttribute];
 
         [o_capture_width_fld setIntValue: [sizes sizeValue].width];
@@ -525,13 +528,17 @@ static VLCOpen *_o_sharedMainInstance = nil;
         [o_capture_height_stp setIntValue: [o_capture_height_fld intValue]];
         qtk_currdevice_uid = [[(QTCaptureDevice *)[qtkvideoDevices objectAtIndex:i_selectedDevice] uniqueID] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
         [self setMRL:[NSString stringWithFormat:@"qtcapture://%@", qtk_currdevice_uid]];
+    }
 }
 
 - (IBAction)qtkAudioChanged:(id)sender
 {
     NSInteger i_selectedDevice = [o_qtkaudio_device_pop indexOfSelectedItem];
+    if( [qtkaudioDevices count] >= 1 )
+    {
         qtkaudio_currdevice_uid = [[(QTCaptureDevice *)[qtkaudioDevices objectAtIndex:i_selectedDevice] uniqueID] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
         [self setMRL:[NSString stringWithFormat:@"qtsound://%@", qtkaudio_currdevice_uid]];
+    }
 }
 
 - (void)tabView:(NSTabView *)o_tv didSelectTabViewItem:(NSTabViewItem *)o_tvi