我制作了一个成功的视频录制程序，但是没有音频？我应该怎么做才能解决这个问题？我在我的 info.plist 中正确设置了音频权限。我正在使用 AVCaptureFileOutputRecordingDelegate。
override func viewWillAppear(_ animated: Bool) {
let deviceDiscoverySession = AVCaptureDeviceDiscoverySession(deviceTypes: [AVCaptureDeviceType.builtInDuoCamera, AVCaptureDeviceType.builtInTelephotoCamera,AVCaptureDeviceType.builtInWideAngleCamera], mediaType: AVMediaTypeVideo, position: AVCaptureDevicePosition.back)
for device in (deviceDiscoverySession?.devices)!{
if(device.position == AVCaptureDevicePosition.back){
do{
let input = try AVCaptureDeviceInput(device: device )
if captureSession.canAddInput(input){
captureSession.addInput(input)
}
// sessionOutput.videoSettings = [(kCVPixelBufferPixelFormatTypeKey as NSString) : NSNumber(value: kCVPixelFormatType_420YpCbCr8BiPlanarFullRange as UInt32)]
sessionOutput.alwaysDiscardsLateVideoFrames = true
if(captureSession.canAddOutput(sessionOutput) == true){
captureSession.addOutput(sessionOutput)
let previewLayer: AVCaptureVideoPreviewLayer = {
let preview = AVCaptureVideoPreviewLayer(session: self.captureSession)
preview?.bounds = CGRect(x: 0, y: 0, width: self.view.bounds.width, height: self.view.bounds.height)
preview?.position = CGPoint(x: self.view.bounds.midX, y: self.view.bounds.midY)
preview?.videoGravity = AVLayerVideoGravityResize
return preview!
}()
view.layer.insertSublayer(previewLayer, at: 0)
output = AVCaptureMovieFileOutput()
let maxDuration = CMTimeMakeWithSeconds(180, 30)
output.maxRecordedDuration = maxDuration
captureSession.addOutput(output)
}
captureSession.commitConfiguration()
}
catch{
print("Error")
}
}
}
我已尝试发布 here 的解决方案但它所做的只是搞乱了我已经用相机工作的东西。任何指导表示赞赏!
最佳答案
简单的步骤，随心所欲地实现:
- 获取视频捕获设备 (AVMediaTypeVideo)
- 获取音频捕获设备 (AVMediaTypeAudio)
- 创建视频输入(带视频设备的 AVCaptureDeviceInput)
- 创建您的音频输入(带有音频设备的 AVCaptureDeviceInput)
- 通过 beginConfiguration() 配置您的捕获 session (AVCaptureSession)
- 通过 addInput() 添加输入以捕获 session
- 通过 commitConfiguration() 提交配置
关于ios - 录像没有声音？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41618162/