我希望我的应用程序能够捕获稳定的图像,但是我还没有找到实现它所需的配置。
这是我的代码:
let frontCamera = cameraWithPosition(AVCaptureDevicePosition.Front)
let captureSession = AVCaptureSession()
if captureSession.canSetSessionPreset(AVCaptureSessionPresetPhoto) {
captureSession.sessionPreset = AVCaptureSessionPresetPhoto
print("Session preset has been set ")
}
else {
print("Session preset couldn't be set ")
}
var error: NSError?
var input: AVCaptureDeviceInput!
do {
input = try AVCaptureDeviceInput(device: frontCamera)
} catch let error1 as NSError {
error = error1
input = nil
}
if error == nil && captureSession!.canAddInput(input) {
captureSession.addInput(input)
let stillImageOutput = AVCaptureStillImageOutput()
stillImageOutput.outputSettings = [AVVideoCodecKey: AVVideoCodecJPEG]
if stillImageOutput.stillImageStabilizationSupported {
stillImageOutput.automaticallyEnablesStillImageStabilizationWhenAvailable = true
print("Stabilization supported ")
}
else {
print("Stabilization is not supported ")
}
}
会话预设已经正确设置,但是不支持图像稳定。
我该怎么做来支持图像稳定?
** 在RHYTHMIC FISTMAN回答后的第二次尝试: **
我切换到了后置摄像头,在设置之前将输出添加到捕获会话中,但仍无法使图像稳定:
let backCamera = cameraWithPosition(AVCaptureDevicePosition.Back)
let captureSession = AVCaptureSession()
if captureSession.canSetSessionPreset(AVCaptureSessionPresetPhoto) {
captureSession.sessionPreset = AVCaptureSessionPresetPhoto
print("Session preset has been set ")
}
else {
print("Session preset couldn't be set ")
}
var error: NSError?
var input: AVCaptureDeviceInput!
do {
input = try AVCaptureDeviceInput(device: backCamera)
} catch let error1 as NSError {
error = error1
input = nil
}
if error == nil && captureSession.canAddInput(input) {
captureSession.addInput(input)
let stillImageOutput = AVCaptureStillImageOutput()
stillImageOutput.outputSettings = [AVVideoCodecKey: AVVideoCodecJPEG]
if captureSession.canAddOutput(stillImageOutput) {
captureSession.addOutput(stillImageOutput)
if stillImageOutput.stillImageStabilizationSupported == true {
stillImageOutput.automaticallyEnablesStillImageStabilizationWhenAvailable = true
print("Stabilization supported ")
}
else {
print("Stabilization is not supported ")
}
if stillImageOutput.stillImageStabilizationActive == true {
print("Stabilization is active ")
}
else {
print("Stabilization is not active ")
}
}
}
结果是:
稳定化不受支持
稳定化未激活