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2014/10/15 ¤U¤È 10:04:11
iphone Programming Glossary: audiocapturedeviceiPhone AVCaptureDeviceInput How to Set Quality of Audio Capture? http://stackoverflow.com/questions/7796263/iphone-avcapturedeviceinput-how-to-set-quality-of-audio-capture the default. Since this interface is usable but not documented well anyone know of how to change the default quality audioCaptureDevice AVCaptureDevice defaultDeviceWithMediaType AVMediaTypeAudio captureSession AVCaptureSession alloc init audioInput AVCaptureDeviceInput.. AVMediaTypeAudio captureSession AVCaptureSession alloc init audioInput AVCaptureDeviceInput deviceInputWithDevice audioCaptureDevice error error captureSession addInput audioInput audioOutput AVCaptureAudioDataOutput alloc init audioOutput setSampleBufferDelegate..
iPhone take augmented reality screenshot with AVCaptureVideoPreviewLayer http://stackoverflow.com/questions/8980847/iphone-take-augmented-reality-screenshot-with-avcapturevideopreviewlayer a live preview on one of the views void startCapture captureSession AVCaptureSession alloc init AVCaptureDevice audioCaptureDevice nil AVCaptureDevice audioCaptureDevice AVCaptureDevice defaultDeviceWithMediaType AVMediaTypeVideo NSArray videoDevices.. void startCapture captureSession AVCaptureSession alloc init AVCaptureDevice audioCaptureDevice nil AVCaptureDevice audioCaptureDevice AVCaptureDevice defaultDeviceWithMediaType AVMediaTypeVideo NSArray videoDevices AVCaptureDevice devicesWithMediaType AVMediaTypeVideo.. in videoDevices if useFrontCamera if device.position AVCaptureDevicePositionFront FRONT FACING CAMERA EXISTS audioCaptureDevice device break else if device.position AVCaptureDevicePositionBack Rear FACING CAMERA EXISTS audioCaptureDevice device..
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