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CameraManager
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Video recording option. With or without mic.

This commit is contained in:
nelanelanela 2014-10-14 10:28:41 +01:00
parent c1ecff4859
commit ee8a1b619f
4 changed files with 232 additions and 46 deletions
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BIN
camera.xcodeproj/project.xcworkspace/xcuserdata/nataliaterlecka.xcuserdatad/UserInterfaceState.xcuserstate generated
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29
camera/Base.lproj/Main.storyboard
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@ -53,6 +53,25 @@
<action selector="changeFlashMode:" destination="BYZ-38-t0r" eventType="touchUpInside" id="e2b-Lg-iqO"/>
</connections>
</button>
<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="FSo-n8-ZwV">
<rect key="frame" x="12" y="12" width="50" height="50"/>
<color key="backgroundColor" red="0.54901963470000004" green="0.77647066119999997" blue="0.2470588386" alpha="1" colorSpace="deviceRGB"/>
<constraints>
<constraint firstAttribute="height" constant="50" id="Cr1-Jm-NA1"/>
<constraint firstAttribute="width" constant="50" id="kaE-Cr-QzA"/>
</constraints>
<state key="normal">
<color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
</state>
<userDefinedRuntimeAttributes>
<userDefinedRuntimeAttribute type="number" keyPath="layer.cornerRadius">
<integer key="value" value="20"/>
</userDefinedRuntimeAttribute>
</userDefinedRuntimeAttributes>
<connections>
<action selector="recordButtonTapped:" destination="BYZ-38-t0r" eventType="touchUpInside" id="Ggq-m1-AQB"/>
</connections>
</button>
</subviews>
<color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
<gestureRecognizers/>
@ -64,15 +83,14 @@
<constraint firstItem="wfy-db-euE" firstAttribute="top" secondItem="yyS-3g-UqL" secondAttribute="bottom" id="INX-TM-tak"/>
<constraint firstAttribute="trailing" secondItem="yyS-3g-UqL" secondAttribute="trailing" id="JEu-x6-qah"/>
<constraint firstItem="wfy-db-euE" firstAttribute="top" secondItem="EI2-CK-oqA" secondAttribute="bottom" id="JW8-WC-69E"/>
<constraint firstItem="FSo-n8-ZwV" firstAttribute="top" secondItem="8bC-Xf-vdC" secondAttribute="top" constant="12" id="Mz5-rc-oFa"/>
<constraint firstAttribute="trailing" secondItem="sT4-CC-oh5" secondAttribute="trailing" constant="16" id="Q92-5b-7Z7"/>
<constraint firstItem="yyS-3g-UqL" firstAttribute="top" secondItem="8bC-Xf-vdC" secondAttribute="top" id="SyJ-SX-ooI"/>
<constraint firstItem="EI2-CK-oqA" firstAttribute="top" secondItem="8bC-Xf-vdC" secondAttribute="top" id="Y9T-eB-SQS"/>
<constraint firstAttribute="trailing" secondItem="EI2-CK-oqA" secondAttribute="trailing" id="m1R-4g-dGU"/>
<constraint firstItem="FSo-n8-ZwV" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" constant="12" id="tQM-Ne-yeQ"/>
<constraint firstItem="19j-xT-Ttb" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" constant="16" id="uuM-vU-IPX"/>
</constraints>
<connections>
<outletCollection property="gestureRecognizers" destination="JKz-eJ-YyR" appends="YES" id="nxl-QQ-Kli"/>
</connections>
</view>
<connections>
<outlet property="cameraView" destination="EI2-CK-oqA" id="bUS-Rk-omr"/>
@ -80,11 +98,6 @@
</connections>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
<tapGestureRecognizer id="JKz-eJ-YyR">
<connections>
<action selector="viewTapped:" destination="BYZ-38-t0r" id="g5R-Rg-R0e"/>
</connections>
</tapGestureRecognizer>
</objects>
</scene>
</scenes>

218
camera/CameraManager.swift
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@ -8,6 +8,7 @@
import UIKit
import AVFoundation
import AssetsLibrary
private let _singletonSharedInstance = CameraManager()
@ -16,13 +17,15 @@ enum CameraDevice {
}
enum CameraFlashMode: Int {
case Off
case On
case Auto
case Off, On, Auto
}
enum CameraOutputMode {
case StillImage, VideoWithMic, VideoOnly
}
/// Class for handling iDevices custom camera usage
class CameraManager: NSObject {
class CameraManager: NSObject, AVCaptureFileOutputRecordingDelegate {
/// The Bool property to determin if current device has front camera.
var hasFrontCamera: Bool = {
@ -102,16 +105,94 @@ class CameraManager: NSObject {
}
}
private var captureSession: AVCaptureSession?
/// Property to change camera output.
var cameraOutputMode: CameraOutputMode {
get {
return self.currentCameraOutputMode
}
set(newCameraOutputMode) {
if newCameraOutputMode != self.currentCameraOutputMode {
self.captureSession?.beginConfiguration()
// remove current setting
switch self.currentCameraOutputMode {
case .StillImage:
if let validStillImageOutput = self.stillImageOutput? {
self.captureSession?.removeOutput(validStillImageOutput)
}
case .VideoOnly, .VideoWithMic:
if let validMovieOutput = self.movieOutput? {
self.captureSession?.removeOutput(validMovieOutput)
}
if self.currentCameraOutputMode == .VideoWithMic {
if let validMic = self.mic? {
self.captureSession?.removeInput(validMic)
}
}
}
// configure new devices
switch newCameraOutputMode {
case .StillImage:
if (self.stillImageOutput == nil) {
self._setupStillImageOutput()
}
if let validStillImageOutput = self.stillImageOutput? {
self.captureSession?.addOutput(validStillImageOutput)
}
self.captureSession?.sessionPreset = AVCaptureSessionPresetPhoto
case .VideoOnly, .VideoWithMic:
if (self.movieOutput == nil) {
self._setupMovieOutput()
}
if let validMovieOutput = self.movieOutput? {
self.captureSession?.addOutput(validMovieOutput)
}
if self.currentCameraOutputMode == .VideoWithMic {
if (self.mic == nil) {
self._setupMic()
}
if let validMic = self.mic? {
self.captureSession?.addInput(validMic)
}
}
self.captureSession?.sessionPreset = AVCaptureSessionPresetMedium
}
self.captureSession?.commitConfiguration()
self.currentCameraOutputMode = newCameraOutputMode
}
}
}
/// Capture sessioc to customize camera settings.
var captureSession: AVCaptureSession?
private weak var embedingView: UIView?
private var sessionQueue: dispatch_queue_t = dispatch_queue_create("CameraSessionQueue", DISPATCH_QUEUE_SERIAL)
private var frontCamera: AVCaptureInput?
private var rearCamera: AVCaptureInput?
private var mic: AVCaptureDeviceInput?
private var stillImageOutput: AVCaptureStillImageOutput?
private var movieOutput: AVCaptureMovieFileOutput?
private var previewLayer: AVCaptureVideoPreviewLayer?
private var cameraIsSetup = false
private var currentCameraDevice = CameraDevice.Back
private var currentFlashMode = CameraFlashMode.Off
private weak var embedingView: UIView?
private var currentCameraOutputMode = CameraOutputMode.StillImage
private var tempFilePath: NSURL = {
let tempPath = NSTemporaryDirectory().stringByAppendingPathComponent("tempMovie").stringByAppendingPathExtension("mp4")
if NSFileManager.defaultManager().fileExistsAtPath(tempPath!) {
NSFileManager.defaultManager().removeItemAtPath(tempPath!, error: nil)
}
return NSURL(fileURLWithPath: tempPath!)
}()
/// CameraManager singleton instance to use the camera.
class var sharedInstance: CameraManager {
@ -127,8 +208,9 @@ class CameraManager: NSObject {
Inits a capture session and adds a preview layer to the given view. Preview layer bounds will automaticaly be set to match given view.
:param: view The view you want to add the preview layer to
:param: cameraOutputMode The mode you want capturesession to run image / video / video and microphone
*/
func addPreeviewLayerToView(view: UIView)
func addPreeviewLayerToView(view: UIView, cameraOutputMode: CameraOutputMode)
{
if let validEmbedingView = self.embedingView? {
if let validPreviewLayer = self.previewLayer? {
@ -137,9 +219,11 @@ class CameraManager: NSObject {
}
if self.cameraIsSetup {
self._addPreeviewLayerToView(view)
self.cameraOutputMode = cameraOutputMode
} else {
self._setupCamera({ Void -> Void in
self._addPreeviewLayerToView(view)
self.cameraOutputMode = cameraOutputMode
})
}
}
@ -164,7 +248,9 @@ class CameraManager: NSObject {
self.captureSession = nil
self.frontCamera = nil
self.rearCamera = nil
self.mic = nil
self.stillImageOutput = nil
self.movieOutput = nil
}
/**
@ -175,27 +261,81 @@ class CameraManager: NSObject {
func capturePictureWithCompletition(imageCompletition: UIImage -> Void)
{
if self.cameraIsSetup {
dispatch_async(self.sessionQueue, {
if let validStillImageOutput = self.stillImageOutput? {
validStillImageOutput.captureStillImageAsynchronouslyFromConnection(validStillImageOutput.connectionWithMediaType(AVMediaTypeVideo), completionHandler: { [weak self] (sample: CMSampleBuffer!, error: NSError!) -> Void in
if (error? != nil) {
dispatch_async(dispatch_get_main_queue(), {
if let weakSelf = self {
weakSelf._show("error", message: error.localizedDescription)
}
})
} else {
let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(sample)
imageCompletition(UIImage(data: imageData))
}
})
}
})
if self.cameraOutputMode == .StillImage {
dispatch_async(self.sessionQueue, {
if let validStillImageOutput = self.stillImageOutput? {
validStillImageOutput.captureStillImageAsynchronouslyFromConnection(validStillImageOutput.connectionWithMediaType(AVMediaTypeVideo), completionHandler: { [weak self] (sample: CMSampleBuffer!, error: NSError!) -> Void in
if (error? != nil) {
dispatch_async(dispatch_get_main_queue(), {
if let weakSelf = self {
weakSelf._show("error", message: error.localizedDescription)
}
})
} else {
let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(sample)
imageCompletition(UIImage(data: imageData))
}
})
}
})
} else {
self._show("Capture session output mode video", message: "I can't take any picture")
}
} else {
self._show("No capture session setup", message: "I can't take any picture")
}
}
/**
Starts recording a video with or without voice as in the session preset.
*/
func startRecordingVideo()
{
if self.cameraOutputMode != .StillImage {
self.movieOutput?.startRecordingToOutputFileURL(self.tempFilePath, recordingDelegate: self)
} else {
self._show("Capture session output still image", message: "I can only take pictures")
}
}
/**
Stop recording a video.
*/
func stopRecordingVideo()
{
if let runningMovieOutput = self.movieOutput {
if runningMovieOutput.recording {
runningMovieOutput.stopRecording()
}
}
}
// PRAGMA MARK - AVCaptureFileOutputRecordingDelegate
func captureOutput(captureOutput: AVCaptureFileOutput!, didStartRecordingToOutputFileAtURL fileURL: NSURL!, fromConnections connections: [AnyObject]!)
{
}
func captureOutput(captureOutput: AVCaptureFileOutput!, didFinishRecordingToOutputFileAtURL outputFileURL: NSURL!, fromConnections connections: [AnyObject]!, error: NSError!)
{
if (error != nil) {
self._show("Unable to save video to the iPhone", message: error.localizedDescription)
} else {
let library = ALAssetsLibrary()
library.writeVideoAtPathToSavedPhotosAlbum(outputFileURL, completionBlock: { (assetURL: NSURL?, error: NSError?) -> Void in
if (error != nil) {
self._show("Unable to save video to the iPhone.", message: error!.localizedDescription)
}
})
}
}
// PRAGMA MARK - CameraManager()
func orientationChanged()
{
switch UIDevice.currentDevice().orientation {
@ -224,7 +364,10 @@ class CameraManager: NSObject {
if let validCaptureSession = self.captureSession? {
validCaptureSession.beginConfiguration()
self._addVideoInput()
self._addStillImageOutput()
self._setupStillImageOutput()
if let validStillImageOutput = self.stillImageOutput? {
self.captureSession?.addOutput(self.stillImageOutput)
}
self._setupPreviewLayer()
validCaptureSession.commitConfiguration()
validCaptureSession.startRunning()
@ -291,11 +434,30 @@ class CameraManager: NSObject {
}
}
private func _addStillImageOutput()
private func _setupMic()
{
self.stillImageOutput = AVCaptureStillImageOutput()
if let validStillImageOutput = self.stillImageOutput? {
self.captureSession?.addOutput(self.stillImageOutput)
if (self.mic == nil) {
var error: NSError?
let micDevice:AVCaptureDevice = AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeAudio);
self.mic = AVCaptureDeviceInput.deviceInputWithDevice(micDevice, error: &error) as? AVCaptureDeviceInput;
if let errorHappened = error {
self.mic = nil
self._show("Mic error", message: errorHappened.description)
}
}
}
private func _setupStillImageOutput()
{
if (self.stillImageOutput == nil) {
self.stillImageOutput = AVCaptureStillImageOutput()
}
}
private func _setupMovieOutput()
{
if (self.movieOutput == nil) {
self.movieOutput = AVCaptureMovieFileOutput()
}
}

31
camera/ViewController.swift
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@ -18,7 +18,7 @@ class ViewController: UIViewController {
override func viewDidLoad()
{
super.viewDidLoad()
self.cameraManager.addPreeviewLayerToView(self.cameraView)
self.cameraManager.addPreeviewLayerToView(self.cameraView, cameraOutputMode: CameraOutputMode.VideoWithMic)
self.imageView.hidden = true
}
@ -27,19 +27,30 @@ class ViewController: UIViewController {
self.cameraManager.flashMode = CameraFlashMode.fromRaw((self.cameraManager.flashMode.toRaw()+1)%3)!
}
@IBAction func viewTapped(sender: UITapGestureRecognizer)
@IBAction func recordButtonTapped(sender: UIButton)
{
if self.cameraView.hidden == true {
self.cameraView.hidden = false
self.imageView.hidden = true
sender.selected = !sender.selected
sender.backgroundColor = sender.selected ? UIColor.redColor() : UIColor.greenColor()
if sender.selected {
self.cameraManager.startRecordingVideo()
} else {
self.cameraManager.capturePictureWithCompletition({ (image: UIImage) -> Void in
self.cameraView.hidden = true
self.imageView.hidden = false
self.imageView.image = image
})
self.cameraManager.stopRecordingVideo()
}
}
// @IBAction func viewTapped(sender: UITapGestureRecognizer)
// {
// if self.cameraView.hidden == true {
// self.cameraView.hidden = false
// self.imageView.hidden = true
// } else {
// self.cameraManager.capturePictureWithCompletition({ (image: UIImage) -> Void in
// self.cameraView.hidden = true
// self.imageView.hidden = false
// self.imageView.image = image
// })
// }
// }
@IBAction func changeCameraDevice(sender: UIButton)
{
self.cameraManager.cameraDevice = self.cameraManager.cameraDevice == CameraDevice.Front ? CameraDevice.Back : CameraDevice.Front