我正在使用AVFoundation录制视频。我正在使用下面的代码。
-(IBAction)record:(id)sender
{
AVCaptureSession *session = [[AVCaptureSession alloc] init];
[session setSessionPreset:AVCaptureSessionPresetHigh];
AVCaptureDevice *inputDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
NSError *error;
AVCaptureDeviceInput *deviceInput = [AVCaptureDeviceInput deviceInputWithDevice:inputDevice error:&error];
if ( [session canAddInput:deviceInput] )
[session addInput:deviceInput];
AVCaptureVideoPreviewLayer *previewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:session];
[previewLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill];
CALayer *rootLayer = [[self view] layer];
[rootLayer setMasksToBounds:YES];
[previewLayer setFrame:CGRectMake(-70, 0, rootLayer.bounds.size.height, rootLayer.bounds.size.height)];
[rootLayer insertSublayer:previewLayer atIndex:0];
[session startRunning];
}
我可以在我的预览层上看到视频,我该如何将其发送到NSData,以便我可以在录制直播时即时将其发送到服务器。
答案 0 :(得分:0)
您需要创建一个AVCaptureVideoDataOutput
并将其连接到您的会话,然后实施
- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer fromConnection:(AVCaptureConnection *)connection
在此处sampleBuffer
保存框架的数据
同样,我建议您查看RosyWriter示例应用程序,因为它有一个以像素为单位获取帧数据的示例