我的应用程序设置为使用AVCaptureSession从相机录制视频,但是没有音频.我需要做什么来录制音频,然后将其添加到该文件的videoOutput?这是我录制视频的代码:
AVCaptureSession *session = [[AVCaptureSession alloc] init]; [session beginConfiguration]; session.sessionPreset = AVCaptureSessionPresetMedium; CALayer *viewLayer = self.vImagePreview.layer; NSLog(@"viewLayer = %@",viewLayer); AVCaptureVideoPreviewLayer *captureVideoPreviewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:session]; captureVideoPreviewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill; captureVideoPreviewLayer.frame = self.vImagePreview.bounds; [self.vImagePreview.layer addSublayer:captureVideoPreviewLayer]; AVCaptureDevice *device = [self frontFacingCameraIfAvailable]; NSError *error = nil; AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error]; if (!input) { // Handle the error appropriately. NSLog(@"ERROR: trying to open camera: %@",error); } NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES); NSString *documentsDirectoryPath = [paths objectAtIndex:0]; AVCaptureMovieFileOutput *movieFileOutput = [[AVCaptureMovieFileOutput alloc] init]; NSString *archives = [documentsDirectoryPath stringByAppendingPathComponent:@"archives"]; NSString *outputpathofmovie = [[archives stringByAppendingPathComponent:@"Test"] stringByAppendingString:@".mp4"]; NSURL *outputURL = [[NSURL alloc] initFileURLWithPath:outputpathofmovie]; [session addInput:input]; [session addOutput:movieFileOutput]; [session commitConfiguration]; [session startRunning]; [movieFileOutput startRecordingToOutputFileURL:outputURL recordingDelegate:self];
我为音频添加了另一个输入,但它不能与后台的mpmovieplayercontroller一起使用.有什么想法可以播放一个视频,同时记录相机的音频和视频?
解决方法
您尚未包括音频设备:
AVCaptureDevice *audioDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio]; AVCaptureDeviceInput * audioInput = [AVCaptureDeviceInput deviceInputWithDevice:audioDevice error:nil]; [session addInput:audioInput]
在beginConfiguration和commitConfiguration之间.它会工作!
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