我已经阅读了很多关于视频播放器的教程。但是如何在具有时间限制的自定义视图中打开相机时开始录制。
答案 0 :(得分:0)
这是快速版本的有效解决方案
var session: AVCaptureSession?
var userreponsevideoData = NSData()
var userreponsethumbimageData = NSData()
override func viewDidLoad() {
super.viewDidLoad()
createSession()
}
func for stopRecording(){
session?.stopRunning()
}
func createSession() {
var input: AVCaptureDeviceInput?
let movieFileOutput = AVCaptureMovieFileOutput()
videosPreviewLayer?.frame.size = photoPreviewImageView.frame.size
session = AVCaptureSession()
let error: NSError? = nil
do { input = try AVCaptureDeviceInput(device: self.cameraWithPosition(position: .back)!) } catch {return}
if error == nil {
session?.addInput(input!)
} else {
print("camera input error: \(String(describing: error))")
}
videosPreviewLayer = AVCaptureVideoPreviewLayer(session: session!)
videosPreviewLayer?.frame.size = self.photoPreviewImageView.frame.size
videosPreviewLayer?.videoGravity = AVLayerVideoGravity.resizeAspectFill
videosPreviewLayer?.connection?.videoOrientation = .portrait
photoPreviewImageView.layer.sublayers?.forEach { $0.removeFromSuperlayer() }
photoPreviewImageView.layer.addSublayer(videosPreviewLayer!)
switchCameraButton.isHidden=true
flashButton.isHidden=true
msgLabel.isHidden=true
galleryCollectionView.isHidden=true
timerLabel.isHidden=false
let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
fileURL = URL(string:"\(documentsURL.appendingPathComponent("temp"))" + ".mov")
print("*****fileurl%@",fileURL ?? "00000")
let maxDuration: CMTime = CMTimeMake(600, 10)
movieFileOutput.maxRecordedDuration = maxDuration
movieFileOutput.minFreeDiskSpaceLimit = 1024 * 1024
if self.session!.canAddOutput(movieFileOutput) {
self.session!.addOutput(movieFileOutput)
}
session?.startRunning()
movieFileOutput.startRecording(to: fileURL!, recordingDelegate: self)
}
func cameraWithPosition(position: AVCaptureDevice.Position) -> AVCaptureDevice? {
let devices = AVCaptureDevice.devices(for: AVMediaType.video)
for device in devices {
if device.position == position {
return device
}
}
return nil
}
}
extension SwipeGallerymainViewController: AVCaptureFileOutputRecordingDelegate
{
func fileOutput(_ output: AVCaptureFileOutput, didFinishRecordingTo outputFileURL: URL, from connections: [AVCaptureConnection], error: Error?) {
print(outputFileURL)
let filemainurl = outputFileURL
do
{
let asset = AVURLAsset(url:filemainurl as URL, options:nil)
print(asset)
let imgGenerator = AVAssetImageGenerator(asset: asset)
imgGenerator.appliesPreferredTrackTransform = true
let cgImage = try imgGenerator.copyCGImage(at: CMTimeMake(0, 1), actualTime: nil)
let uiImage = UIImage(cgImage: cgImage)
previewImage = uiImage
userreponsethumbimageData = NSData(contentsOf: filemainurl as URL)!
print(userreponsethumbimageData.length)
print(uiImage)
}
catch let error as NSError
{
print(error)
return
}
let VideoFilePath = URL(fileURLWithPath:NSTemporaryDirectory()).appendingPathComponent("mergeVideo\(arc4random()%1000)d").appendingPathExtension("mp4").absoluteString
if FileManager.default.fileExists(atPath: VideoFilePath)
{
print("exist")
do
{
try FileManager.default.removeItem(atPath: VideoFilePath)
}
catch { }
}
let tempfilemainurl = NSURL(string: VideoFilePath)!
let sourceAsset = AVURLAsset(url:filemainurl as URL, options:nil)
let assetExport: AVAssetExportSession = AVAssetExportSession(asset: sourceAsset, presetName: AVAssetExportPresetMediumQuality)!
assetExport.outputFileType = AVFileType.mov
assetExport.outputURL = tempfilemainurl as URL
assetExport.exportAsynchronously { () -> Void in
switch assetExport.status
{
case AVAssetExportSessionStatus.completed:
DispatchQueue.main.async {
do
{
self.userreponsevideoData = try NSData(contentsOf: tempfilemainurl as URL, options: NSData.ReadingOptions())
print("MB - \(self.userreponsevideoData.length) byte")
self.isVideoLoad=true
self.performSegue(withIdentifier:"previewSegue", sender:self)
}
catch
{
print(error)
}
}
case AVAssetExportSessionStatus.failed:
print("failed \(String(describing: assetExport.error))")
case AVAssetExportSessionStatus.cancelled:
print("cancelled \(String(describing: assetExport.error))")
default:
print("complete")
}
}
}
func captureOutput(captureOutput: AVCaptureFileOutput!, didStartRecordingToOutputFileAtURL fileURL: NSURL!, fromConnections connections: [AnyObject]!) {
print(fileURL)
}
}
答案 1 :(得分:-1)
我在笔记本电脑上使用Robot类在java中做了同样的事情。机器人类能够自动发送击键和鼠标移动。您可以在平台上尝试相同的操作。自动按钮按下事件,以便开始录制。