         for var i = 0;
             (i < lines.count) && (mLineIndex == -1 || isac16kRtpMap == nil);
             ++i {
-            let line = lines[i]
-            if line.hasPrefix("m=audio ") {
-                mLineIndex = i
-                continue
-            }
+                let line = lines[i]
+                if line.hasPrefix("m=audio ") {
+                    mLineIndex = i
+                    continue
+                }
                 
-            isac16kRtpMap = self.firstMatch(isac16kRegex!, string: line)
+                isac16kRtpMap = self.firstMatch(isac16kRegex!, string: line)
         }
         
         if mLineIndex == -1 {

            self.peerConnection.createOfferWithDelegate(SessionDescriptionDelegate(session: self),
                constraints: constraints)
        }

    }
    
    func receiveMessage(message: String) {

            let mid: String = data?.objectForKey("id") as NSString
            let sdpLineIndex: Int = (data?.objectForKey("label") as NSNumber).integerValue
            let sdp: String = data?.objectForKey("candidate") as NSString
            
            let candidate = RTCICECandidate(
                mid: mid,
                index: sdpLineIndex,
