Мне нужно, чтобы AVCaptureVideoDataOutput
и AVCaptureMovieFileOutput
работали одновременно.Приведенный ниже код работает, однако запись видео - нет.Делегат didFinishRecordingToOutputFileAtURL
вызывается сразу после вызова startRecordingToOutputFileURL
.Теперь, если я удаляю AVCaptureVideoDataOutput
из AVCaptureSession
, просто закомментировав строку:
[captureSession addOutput:captureDataOutput];
Запись видео работает, но тогда SampleBufferDelegate не вызывается (что мне нужно).
Как мне работать одновременно AVCaptureVideoDataOutput
и AVCaptureMovieFileOutput
.
- (void)initCapture {
AVCaptureDeviceInput *captureInput = [AVCaptureDeviceInput deviceInputWithDevice:[AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo] error:NULL];
captureDataOutput = [[AVCaptureVideoDataOutput alloc] init];
[captureDataOutput setSampleBufferDelegate:self queue:dispatch_get_main_queue()];
m_captureFileOutput = [[AVCaptureMovieFileOutput alloc] init];
NSString* key = (NSString*)kCVPixelBufferPixelFormatTypeKey;
NSNumber* value = [NSNumber numberWithUnsignedInt:kCVPixelFormatType_32BGRA];
NSDictionary* videoSettings = [NSDictionary dictionaryWithObject:value forKey:key];
[captureDataOutput setVideoSettings:videoSettings];
captureSession = [[AVCaptureSession alloc] init];
[captureSession addInput:captureInput];
[captureSession addOutput:m_captureFileOutput];
[captureSession addOutput:captureDataOutput];
[captureSession beginConfiguration];
[captureSession setSessionPreset:AVCaptureSessionPresetLow];
[captureSession commitConfiguration];
[self performSelector:@selector(startRecording) withObject:nil afterDelay:10.0];
[self performSelector:@selector(stopRecording) withObject:nil afterDelay:15.0];
[captureSession startRunning];
}
- (void) startRecording
{
[m_captureFileOutput startRecordingToOutputFileURL:[self tempFileURL] recordingDelegate:self];
}
- (void) stopRecording
{
if([m_captureFileOutput isRecording])
[m_captureFileOutput stopRecording];
}
- (NSURL *) tempFileURL
{
NSString *outputPath = [[NSString alloc] initWithFormat:@"%@%@", NSTemporaryDirectory(), @"camera.mov"];
NSURL *outputURL = [[NSURL alloc] initFileURLWithPath:outputPath];
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:outputPath]) {
[[NSFileManager defaultManager] removeItemAtPath:outputPath error:nil];
[outputPath release];
return [outputURL autorelease];
}
- (void)captureOutput:(AVCaptureFileOutput *)captureOutput didStartRecordingToOutputFileAtURL:(NSURL *)fileURL fromConnections:(NSArray *)connections
{
NSLog(@"start record video");
}
- (void)captureOutput:(AVCaptureFileOutput *)captureOutput didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL fromConnections:(NSArray *)connections error:(NSError *)error
{
NSLog(@"end record");
}
- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer fromConnection:(AVCaptureConnection *)connection
{
// do stuff with sampleBuffer
}
Я должен добавить, что я получаю ошибку:
Error Domain=NSOSStatusErrorDomain Code=-12780 "The operation couldn’t be completed. (OSStatus error -12780.)" UserInfo=0x23fcd0 {AVErrorRecordingSuccessfullyFinishedKey=false}
от
- (void)captureOutput:(AVCaptureFileOutput *)captureOutput didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL fromConnections:(NSArray *)connections error:(NSError *)error
Приветствия