iOS: unbreak the build following r4546

BUG=2255
R=niklas.enbom@webrtc.org, sjlee@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2078004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4577 4adac7df-926f-26a2-2b94-8c16560cd09d

talk/examples/ios/AppRTCDemo/APPRTCAppClient.m

@@ -34,7 +34,7 @@
 
 @interface APPRTCAppClient ()
 
-@property(nonatomic, assign) dispatch_queue_t backgroundQueue;
+@property(nonatomic, strong) dispatch_queue_t backgroundQueue;
 @property(nonatomic, copy) NSString *baseURL;
 @property(nonatomic, strong) GAEChannelClient *gaeChannel;
 @property(nonatomic, copy) NSString *postMessageUrl;
@@ -52,7 +52,6 @@
 - (id)init {
   if (self = [super init]) {
     _backgroundQueue = dispatch_queue_create("RTCBackgroundQueue", NULL);
-    dispatch_retain(_backgroundQueue);
     _sendQueue = [NSMutableArray array];
     // Uncomment to see Request/Response logging.
     // _verboseLogging = YES;
@@ -60,10 +59,6 @@
   return self;
 }
 
-- (void)dealloc {
-  dispatch_release(_backgroundQueue);
-}
-
 #pragma mark - Public methods
 
 - (void)connectToRoom:(NSURL *)url {

webrtc/build/common.gypi

@@ -133,6 +133,7 @@
         'enable_android_opensl%': 0,
       }],
       ['OS=="ios"', {
+        'build_libjpeg%': 0,
         'enable_protobuf%': 0,
         'include_tests%': 0,
       }],

webrtc/modules/video_capture/ios/video_capture_ios_objc.mm

@@ -39,7 +39,7 @@ using namespace webrtc::videocapturemodule;
     AVCaptureVideoDataOutput* captureOutput =
         [[AVCaptureVideoDataOutput alloc] init];
     [captureOutput setSampleBufferDelegate:self
-                                     queue:dispatch_get_current_queue()];
+        queue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)];
     NSString* key = (NSString*)kCVPixelBufferPixelFormatTypeKey;
 
     NSNumber* val = [NSNumber

webrtc/modules/video_capture/video_capture.gypi

@@ -126,6 +126,15 @@
                 'ios/video_capture_ios_objc.h',
                 'ios/video_capture_ios_objc.mm',
               ],
+              'all_dependent_settings': {
+                'xcode_settings': {
+                  'OTHER_LDFLAGS': [
+                    '-framework AVFoundation',
+                    '-framework CoreMedia',
+                    '-framework CoreVideo',
+                  ],
+                },
+              },
             }],  # ios
           ], # conditions
         }],  # include_internal_video_capture