A UIView Subclass For Displaying An IPCamera Stream (MJPEG)

IPCameraView.swift

class IPCameraView: UIView, NSURLSessionDataDelegate {

    var imageView:UIImageView
    
    var url: NSURL
    var endMarkerData: NSData
    var receivedData: NSMutableData
    var dataTask: NSURLSessionDataTask
    
    init(frame: CGRect) {
        self.endMarkerData = NSData(bytes: [0xFF, 0xD9] as Byte[], length: 2)
        
        self.url = NSURL()
        self.receivedData = NSMutableData()
        
        self.imageView = UIImageView()
        
        self.dataTask = NSURLSessionDataTask()
        
        super.init(frame: frame)

        self.addSubview(self.imageView)
    }
    
    deinit{
        self.dataTask.cancel()
    }
    
    func startWithURL(url:NSURL){
        var session = NSURLSession(configuration: NSURLSessionConfiguration.defaultSessionConfiguration(), delegate: self, delegateQueue: nil)
        
        
        var request = NSURLRequest(URL: url )
        
        self.dataTask = session.dataTaskWithRequest(request)
        
        
        // Initialization code
        
        self.dataTask.resume()
        
        var bounds = self.bounds
        self.imageView.frame = bounds
        self.imageView.contentMode = UIViewContentMode.ScaleAspectFit
    }
    
    override func layoutSubviews() {
        super.layoutSubviews()
    }
    
    func pause() {
        self.dataTask.cancel()
    }
    
    func stop(){
        self.pause()
    }
    
    func URLSession(session: NSURLSession!,
        dataTask: NSURLSessionDataTask!,
        didReceiveData: NSData!) {
            
            self.receivedData.appendData(didReceiveData)
            
            //NSLog( "Did receive data" )
            
            var endRange:NSRange = self.receivedData.rangeOfData(self.endMarkerData, options: nil, range: NSMakeRange(0, self.receivedData.length))
    
//            NSRange endRange = [_receivedData rangeOfData:_endMarkerData
//                options:0
//                range:NSMakeRange(0, _receivedData.length)];
            
            var endLocation = endRange.location + endRange.length
            //long long endLocation = endRange.location + endRange.length;
            
            if self.receivedData.length >= endLocation {
                var imageData = self.receivedData.subdataWithRange(NSMakeRange(0, endLocation))
                var receivedImage = UIImage(data: imageData)
                
                dispatch_async( dispatch_get_main_queue(), {
                    self.imageView.image = receivedImage
                })
                
                //NSLog( "Length: %d", imageData.length )
                
                self.receivedData = NSMutableData(data: self.receivedData.subdataWithRange(NSMakeRange(endLocation, self.receivedData.length - endLocation)))
                
            }
            
//            if (_receivedData.length >= endLocation) {
//                NSData *imageData = [_receivedData subdataWithRange:NSMakeRange(0, endLocation)];
//                UIImage *receivedImage = [UIImage imageWithData:imageData];
//                if (receivedImage) {
//                    self.image = receivedImage;
//                }
//            }

    }


    /*
    // Only override drawRect: if you perform custom drawing.
    // An empty implementation adversely affects performance during animation.
    override func drawRect(rect: CGRect)
    {
        // Drawing code
    }
    */

}

hello
thanks for this code
but could you please send me your project that can play ip camera stream by just giving a url ?

i can't start stream from my viewcontroller..can you send me code tnx

i need your project too! share it with me please! thx!

i used same logic to extract images from mjpeg file,In my project i am downloading the file from other request and using it whenever required but it is causing memory issues while storing it in the received data, every time I try to access the frames of it. and not releasing it.