Palyground- Live Camera

// Playground - noun: a place where people can play



import Cocoa


import AVFoundation


import AVKit


import QuartzCore


import XCPlayground



var view = NSView(frame:


NSRect(x: 0, y: 0, width: 640, height: 480))



var session = AVCaptureSession()



session.sessionPreset = AVCaptureSessionPreset640x480


session.beginConfiguration()


session.commitConfiguration()



var input : AVCaptureDeviceInput! = nil


var err : NSError?


var devices : AVCaptureDevice[] = AVCaptureDevice.devices() as AVCaptureDevice[]


for device in devices {


if device.hasMediaType(AVMediaTypeVideo) && device.supportsAVCaptureSessionPreset(AVCaptureSessionPreset640x480) {



input = AVCaptureDeviceInput.deviceInputWithDevice(device as AVCaptureDevice, error: &err) as AVCaptureDeviceInput



if session.canAddInput(input) {


session.addInput(input)


break


}


}


}



var settings = [kCVPixelBufferPixelFormatTypeKey:kCVPixelFormatType_32BGRA]



var output = AVCaptureVideoDataOutput()


output.videoSettings = settings


output.alwaysDiscardsLateVideoFrames = true



if session.canAddOutput(output) {


session.addOutput(output)


}



var captureLayer = AVCaptureVideoPreviewLayer(session: session)



view.wantsLayer = true


view.layer = captureLayer



session.startRunning()



XCPShowView("camera", view)