public override void ViewDidLoad()
{
base.ViewDidLoad();
View.BackgroundColor = UIColor.FromRGBA(0.0f, 0.0f, 0.0f, 1f);
// ここにInitUI()の呼び出しを書く
// Disable UI. The UI is enabled if and only if the session starts running.
CameraButton.Enabled = false;
RecordButton.Enabled = false;
PhotoButton.Enabled = false;
LivePhotoModeButton.Enabled = false;
CaptureModeControl.Enabled = false;
// Setup the preview view.
PreviewView.Session = session;
// Check video authorization status. Video access is required and audio access is optional.
// If audio access is denied, audio is not recorded during movie recording.
switch (AVCaptureDevice.GetAuthorizationStatus(AVMediaType.Video))
{
// The user has previously granted access to the camera.
case AVAuthorizationStatus.Authorized:
break;
// The user has not yet been presented with the option to grant video access.
// We suspend the session queue to delay session setup until the access request has completed to avoid
// asking the user for audio access if video access is denied.
// Note that audio access will be implicitly requested when we create an AVCaptureDeviceInput for audio during session setup.
case AVAuthorizationStatus.NotDetermined:
sessionQueue.Suspend();
AVCaptureDevice.RequestAccessForMediaType(AVMediaType.Video, granted => {
if (!granted)
{
setupResult = AVCamSetupResult.CameraNotAuthorized;
}
sessionQueue.Resume();
});
break;
// The user has previously denied access.
default:
setupResult = AVCamSetupResult.CameraNotAuthorized;
break;
}
// Setup the capture session.
// In general it is not safe to mutate an AVCaptureSession or any of its inputs, outputs, or connections from multiple threads at the same time.
// Why not do all of this on the main queue?
// Because AVCaptureSession.StartRunning is a blocking call which can take a long time. We dispatch session setup to the sessionQueue
// so that the main queue isn't blocked, which keeps the UI responsive.
sessionQueue.DispatchAsync(ConfigureSession);
}
//-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Create the AVCaptureSession.
session = new AVCaptureSession();
// Set up the preview view.
PreviewView.Session = session;
setupResult = AVCamSetupResult.Success;
switch (AVCaptureDevice.GetAuthorizationStatus(AVMediaType.Video))
{
case AVAuthorizationStatus.Authorized:
// The user has previously granted access to the camera.
break;
case AVAuthorizationStatus.NotDetermined:
/*
* The user has not yet been presented with the option to grant
* video access. We suspend the session queue to delay session
* setup until the access request has completed.
*
* Note that audio access will be implicitly requested when we
* create an AVCaptureDeviceInput for audio during session setup.
*/
AVCaptureDevice.RequestAccessForMediaType(AVMediaType.Video, (bool granted) => {
if (!granted)
{
setupResult = AVCamSetupResult.CameraNotAuthorized;
}
});
break;
default:
{
// The user has previously denied access.
setupResult = AVCamSetupResult.CameraNotAuthorized;
break;
}
}
ConfigureSession();
}
public AVCamCameraView()
{
#region UIVIew adds
session = new AVCaptureSession();
VideoPreviewLayer = new AVCaptureVideoPreviewLayer(session)
{
Frame = Bounds,
VideoGravity = AVLayerVideoGravity.ResizeAspectFill
};
var videoDevices = AVCaptureDevice.DevicesWithMediaType(AVMediaType.Video);
var cameraPosition = (cameraOptions == CameraOptions.Front) ? AVCaptureDevicePosition.Front : AVCaptureDevicePosition.Back;
var device = videoDevices.FirstOrDefault(d => d.Position == cameraPosition);
if (device == null)
{
return;
}
NSError error;
var input = new AVCaptureDeviceInput(device, out error);
session.AddInput(input);
Layer.AddSublayer(VideoPreviewLayer);
//session.StartRunning();
IsPreviewing = true;
#endregion
// Create a device discovery session.
videoDeviceDiscoverySession = AVCaptureDeviceDiscoverySession.Create(
new AVCaptureDeviceType[] { AVCaptureDeviceType.BuiltInWideAngleCamera, AVCaptureDeviceType.BuiltInDualCamera },
AVMediaType.Video,
AVCaptureDevicePosition.Unspecified
);
// Communicate with the session and other session objects on this queue.
sessionQueue = new DispatchQueue("session queue", false);
setupResult = AVCamSetupResult.Success;
}
// Call this on the session queue.
void ConfigureSession()
{
if (setupResult != AVCamSetupResult.Success)
{
return;
}
NSError error = null;
session.BeginConfiguration();
/*
* We do not create an AVCaptureMovieFileOutput when setting up the session because the
* AVCaptureMovieFileOutput does not support movie recording with AVCaptureSessionPresetPhoto.
*/
session.SessionPreset = AVCaptureSession.PresetPhoto;
// Add video input.
// Choose the back dual camera if available, otherwise default to a wide angle camera.
var videoDevice = AVCaptureDevice.GetDefaultDevice(AVCaptureDeviceType.BuiltInDualCamera, AVMediaType.Video, AVCaptureDevicePosition.Back);
if (videoDevice == null)
{
// If the back dual camera is not available, default to the back wide angle camera.
videoDevice = AVCaptureDevice.GetDefaultDevice(AVCaptureDeviceType.BuiltInWideAngleCamera, AVMediaType.Video, AVCaptureDevicePosition.Back);
// In some cases where users break their phones, the back wide angle camera is not available. In this case, we should default to the front wide angle camera.
if (videoDevice == null)
{
videoDevice = AVCaptureDevice.GetDefaultDevice(AVCaptureDeviceType.BuiltInWideAngleCamera, AVMediaType.Video, AVCaptureDevicePosition.Front);
}
}
var lVideoDeviceInput = AVCaptureDeviceInput.FromDevice(videoDevice, out error);
if (lVideoDeviceInput == null)
{
Console.WriteLine($"Could not create video device input: {error}");
setupResult = AVCamSetupResult.SessionConfigurationFailed;
session.CommitConfiguration();
return;
}
if (session.CanAddInput(lVideoDeviceInput))
{
session.AddInput(lVideoDeviceInput);
videoDeviceInput = lVideoDeviceInput;
DispatchQueue.MainQueue.DispatchAsync(() =>
{
/*
* Why are we dispatching this to the main queue?
* Because AVCaptureVideoPreviewLayer is the backing layer for AVCamPreviewView and UIView
* can only be manipulated on the main thread.
* Note: As an exception to the above rule, it is not necessary to serialize video orientation changes
* on the AVCaptureVideoPreviewLayer’s connection with other session manipulation.
*
* Use the status bar orientation as the initial video orientation. Subsequent orientation changes are
* handled by -[AVCamCameraViewController viewWillTransitionToSize:withTransitionCoordinator:].
*/
var statusBarOrientation = UIApplication.SharedApplication.StatusBarOrientation;
var initialVideoOrientation = AVCaptureVideoOrientation.Portrait;
if (statusBarOrientation != UIInterfaceOrientation.Unknown)
{
initialVideoOrientation = (AVCaptureVideoOrientation)statusBarOrientation;
}
VideoPreviewLayer.Connection.VideoOrientation = initialVideoOrientation;
});
}
else
{
Console.WriteLine(@"Could not add video device input to the session");
setupResult = AVCamSetupResult.SessionConfigurationFailed;
session.CommitConfiguration();
return;
}
// Add audio input.
var audioDevice = AVCaptureDevice.GetDefaultDevice(AVMediaType.Audio);
var audioDeviceInput = AVCaptureDeviceInput.FromDevice(audioDevice, out error);
if (audioDeviceInput == null)
{
Console.WriteLine($"Could not create audio device input: {error}");
}
if (session.CanAddInput(audioDeviceInput))
{
session.AddInput(audioDeviceInput);
}
else
{
Console.WriteLine(@"Could not add audio device input to the session");
}
// Add photo output.
var lPhotoOutput = new AVCapturePhotoOutput();
if (session.CanAddOutput(lPhotoOutput))
{
session.AddOutput(lPhotoOutput);
photoOutput = lPhotoOutput;
photoOutput.IsHighResolutionCaptureEnabled = true;
photoOutput.IsLivePhotoCaptureEnabled = photoOutput.IsLivePhotoCaptureSupported;
//photoOutput.IsDepthDataDeliveryEnabled(photoOutput.IsDepthDataDeliverySupported());
livePhotoMode = photoOutput.IsLivePhotoCaptureSupported ? AVCamLivePhotoMode.On : AVCamLivePhotoMode.Off;
//depthDataDeliveryMode = photoOutput.IsDepthDataDeliverySupported() ? AVCamDepthDataDeliveryMode.On : AVCamDepthDataDeliveryMode.Off;
inProgressPhotoCaptureDelegates = new Dictionary <long, AVCamPhotoCaptureDelegate>();
inProgressLivePhotoCapturesCount = 0;
}
else
{
Console.WriteLine(@"Could not add photo output to the session");
setupResult = AVCamSetupResult.SessionConfigurationFailed;
session.CommitConfiguration();
return;
}
backgroundRecordingId = UIApplication.BackgroundTaskInvalid;
session.CommitConfiguration();
}
void ConfigureSession()
{
if (setupResult != AVCamSetupResult.Success)
{
return;
}
session.BeginConfiguration();
// We do not create an AVCaptureMovieFileOutput when setting up the session because the
// AVCaptureMovieFileOutput does not support movie recording with AVCaptureSessionPresetPhoto.
session.SessionPreset = AVCaptureSession.PresetPhoto;
// Add video input.
// Choose the back dual camera if available, otherwise default to a wide angle camera.
var defaultVideoDevice = AVCaptureDevice.GetDefaultDevice(AVCaptureDeviceType.BuiltInDuoCamera, AVMediaType.Video, AVCaptureDevicePosition.Back)
?? AVCaptureDevice.GetDefaultDevice(AVCaptureDeviceType.BuiltInWideAngleCamera, AVMediaType.Video, AVCaptureDevicePosition.Back)
?? AVCaptureDevice.GetDefaultDevice(AVCaptureDeviceType.BuiltInWideAngleCamera, AVMediaType.Video, AVCaptureDevicePosition.Front);
NSError error;
var input = AVCaptureDeviceInput.FromDevice(defaultVideoDevice, out error);
if (error != null)
{
Console.WriteLine($"Could not create video device input: {error.LocalizedDescription}");
setupResult = AVCamSetupResult.SessionConfigurationFailed;
session.CommitConfiguration();
return;
}
if (session.CanAddInput(input))
{
session.AddInput(input);
videoDeviceInput = input;
DispatchQueue.MainQueue.DispatchAsync(() => {
// Why are we dispatching this to the main queue?
// Because AVCaptureVideoPreviewLayer is the backing layer for PreviewView and UIView
// can only be manipulated on the main thread.
// Note: As an exception to the above rule, it is not necessary to serialize video orientation changes
// on the AVCaptureVideoPreviewLayer’s connection with other session manipulation.
// Use the status bar orientation as the initial video orientation. Subsequent orientation changes are handled by
// ViewWillTransitionToSize method.
var statusBarOrientation = UIApplication.SharedApplication.StatusBarOrientation;
var initialVideoOrientation = AVCaptureVideoOrientation.Portrait;
AVCaptureVideoOrientation videoOrientation;
if (statusBarOrientation != UIInterfaceOrientation.Unknown && TryConvertToVideoOrientation(statusBarOrientation, out videoOrientation))
{
initialVideoOrientation = videoOrientation;
}
PreviewView.VideoPreviewLayer.Connection.VideoOrientation = initialVideoOrientation;
});
}
else
{
Console.WriteLine("Could not add video device input to the session");
setupResult = AVCamSetupResult.SessionConfigurationFailed;
session.CommitConfiguration();
return;
}
// Add audio input.
//var audioDevice = AVCaptureDevice.DefaultDeviceWithMediaType(AVMediaType.Audio);
var audioDevice = AVCaptureDevice.GetDefaultDevice(AVMediaType.Audio);
var audioDeviceInput = AVCaptureDeviceInput.FromDevice(audioDevice, out error);
if (error != null)
{
Console.WriteLine($"Could not create audio device input: {error.LocalizedDescription}");
}
if (session.CanAddInput(audioDeviceInput))
{
session.AddInput(audioDeviceInput);
}
else
{
Console.WriteLine("Could not add audio device input to the session");
}
// Add photo output.
if (session.CanAddOutput(photoOutput))
{
session.AddOutput(photoOutput);
photoOutput.IsHighResolutionCaptureEnabled = true;
photoOutput.IsLivePhotoCaptureEnabled = photoOutput.IsLivePhotoCaptureSupported;
livePhotoMode = photoOutput.IsLivePhotoCaptureSupported ? LivePhotoMode.On : LivePhotoMode.Off;
}
else
{
Console.WriteLine("Could not add photo output to the session");
setupResult = AVCamSetupResult.SessionConfigurationFailed;
session.CommitConfiguration();
return;
}
session.CommitConfiguration();
}
public override void ViewDidLoad ()
{
base.ViewDidLoad ();
// Disable UI. The UI is enabled if and only if the session starts running.
CameraButton.Enabled = false;
RecordButton.Enabled = false;
PhotoButton.Enabled = false;
LivePhotoModeButton.Enabled = false;
CaptureModeControl.Enabled = false;
// Setup the preview view.
PreviewView.Session = session;
// Check video authorization status. Video access is required and audio access is optional.
// If audio access is denied, audio is not recorded during movie recording.
switch (AVCaptureDevice.GetAuthorizationStatus (AVMediaType.Video)) {
// The user has previously granted access to the camera.
case AVAuthorizationStatus.Authorized:
break;
// The user has not yet been presented with the option to grant video access.
// We suspend the session queue to delay session setup until the access request has completed to avoid
// asking the user for audio access if video access is denied.
// Note that audio access will be implicitly requested when we create an AVCaptureDeviceInput for audio during session setup.
case AVAuthorizationStatus.NotDetermined:
sessionQueue.Suspend ();
AVCaptureDevice.RequestAccessForMediaType (AVMediaType.Video, granted => {
if (!granted)
setupResult = AVCamSetupResult.CameraNotAuthorized;
sessionQueue.Resume ();
});
break;
// The user has previously denied access.
default:
setupResult = AVCamSetupResult.CameraNotAuthorized;
break;
}
// Setup the capture session.
// In general it is not safe to mutate an AVCaptureSession or any of its inputs, outputs, or connections from multiple threads at the same time.
// Why not do all of this on the main queue?
// Because AVCaptureSession.StartRunning is a blocking call which can take a long time. We dispatch session setup to the sessionQueue
// so that the main queue isn't blocked, which keeps the UI responsive.
sessionQueue.DispatchAsync (ConfigureSession);
}
void ConfigureSession ()
{
if (setupResult != AVCamSetupResult.Success)
return;
session.BeginConfiguration ();
// We do not create an AVCaptureMovieFileOutput when setting up the session because the
// AVCaptureMovieFileOutput does not support movie recording with AVCaptureSessionPresetPhoto.
session.SessionPreset = AVCaptureSession.PresetPhoto;
// Add video input.
// Choose the back dual camera if available, otherwise default to a wide angle camera.
AVCaptureDevice defaultVideoDevice = AVCaptureDevice.GetDefaultDevice (AVCaptureDeviceType.BuiltInDuoCamera, AVMediaType.Video, AVCaptureDevicePosition.Back)
?? AVCaptureDevice.GetDefaultDevice (AVCaptureDeviceType.BuiltInWideAngleCamera, AVMediaType.Video, AVCaptureDevicePosition.Back)
?? AVCaptureDevice.GetDefaultDevice (AVCaptureDeviceType.BuiltInWideAngleCamera, AVMediaType.Video, AVCaptureDevicePosition.Front);
NSError error;
var input = AVCaptureDeviceInput.FromDevice (defaultVideoDevice, out error);
if (error != null) {
Console.WriteLine ($"Could not create video device input: {error.LocalizedDescription}");
setupResult = AVCamSetupResult.SessionConfigurationFailed;
session.CommitConfiguration ();
return;
}
if (session.CanAddInput (input)) {
session.AddInput (input);
videoDeviceInput = input;
DispatchQueue.MainQueue.DispatchAsync (() => {
// Why are we dispatching this to the main queue?
// Because AVCaptureVideoPreviewLayer is the backing layer for PreviewView and UIView
// can only be manipulated on the main thread.
// Note: As an exception to the above rule, it is not necessary to serialize video orientation changes
// on the AVCaptureVideoPreviewLayer’s connection with other session manipulation.
// Use the status bar orientation as the initial video orientation. Subsequent orientation changes are handled by
// ViewWillTransitionToSize method.
var statusBarOrientation = UIApplication.SharedApplication.StatusBarOrientation;
var initialVideoOrientation = AVCaptureVideoOrientation.Portrait;
AVCaptureVideoOrientation videoOrientation;
if (statusBarOrientation != UIInterfaceOrientation.Unknown && TryConvertToVideoOrientation(statusBarOrientation, out videoOrientation))
initialVideoOrientation = videoOrientation;
PreviewView.VideoPreviewLayer.Connection.VideoOrientation = initialVideoOrientation;
});
} else {
Console.WriteLine ("Could not add video device input to the session");
setupResult = AVCamSetupResult.SessionConfigurationFailed;
session.CommitConfiguration ();
return;
}
// Add audio input.
var audioDevice = AVCaptureDevice.DefaultDeviceWithMediaType (AVMediaType.Audio);
var audioDeviceInput = AVCaptureDeviceInput.FromDevice (audioDevice, out error);
if (error != null)
Console.WriteLine ($"Could not create audio device input: {error.LocalizedDescription}");
if (session.CanAddInput (audioDeviceInput))
session.AddInput (audioDeviceInput);
else
Console.WriteLine ("Could not add audio device input to the session");
// Add photo output.
if (session.CanAddOutput (photoOutput)) {
session.AddOutput (photoOutput);
photoOutput.IsHighResolutionCaptureEnabled = true;
photoOutput.IsLivePhotoCaptureEnabled = photoOutput.IsLivePhotoCaptureSupported;
livePhotoMode = photoOutput.IsLivePhotoCaptureSupported ? LivePhotoMode.On : LivePhotoMode.Off;
} else {
Console.WriteLine ("Could not add photo output to the session");
setupResult = AVCamSetupResult.SessionConfigurationFailed;
session.CommitConfiguration ();
return;
}
session.CommitConfiguration ();
}
