583 lines
19 KiB
C
583 lines
19 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 6 End-User License
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Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
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End User License Agreement: www.juce.com/juce-6-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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struct CameraDevice::Pimpl
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{
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#if defined (MAC_OS_X_VERSION_10_15) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_15
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#define JUCE_USE_NEW_APPLE_CAMERA_API 1
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#else
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#define JUCE_USE_NEW_APPLE_CAMERA_API 0
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#endif
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#if JUCE_USE_NEW_APPLE_CAMERA_API
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class PostCatalinaPhotoOutput
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{
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public:
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PostCatalinaPhotoOutput()
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{
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static PhotoOutputDelegateClass cls;
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delegate.reset ([cls.createInstance() init]);
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}
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void addImageCapture (AVCaptureSession* s)
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{
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if (imageOutput != nil)
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return;
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imageOutput = [[AVCapturePhotoOutput alloc] init];
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[s addOutput: imageOutput];
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}
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void removeImageCapture (AVCaptureSession* s)
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{
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if (imageOutput == nil)
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return;
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[s removeOutput: imageOutput];
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[imageOutput release];
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imageOutput = nil;
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}
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NSArray<AVCaptureConnection*>* getConnections() const
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{
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if (imageOutput != nil)
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return imageOutput.connections;
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return nil;
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}
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void triggerImageCapture (Pimpl& p)
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{
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if (imageOutput == nil)
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return;
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PhotoOutputDelegateClass::setOwner (delegate.get(), &p);
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[imageOutput capturePhotoWithSettings: [AVCapturePhotoSettings photoSettings]
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delegate: id<AVCapturePhotoCaptureDelegate> (delegate.get())];
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}
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static NSArray* getAvailableDevices()
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{
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auto* discovery = [AVCaptureDeviceDiscoverySession discoverySessionWithDeviceTypes: @[AVCaptureDeviceTypeBuiltInWideAngleCamera,
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AVCaptureDeviceTypeExternalUnknown]
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mediaType: AVMediaTypeVideo
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position: AVCaptureDevicePositionUnspecified];
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return [discovery devices];
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}
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private:
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class PhotoOutputDelegateClass : public ObjCClass<NSObject>
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{
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public:
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PhotoOutputDelegateClass() : ObjCClass<NSObject> ("PhotoOutputDelegateClass_")
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{
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addMethod (@selector (captureOutput:didFinishProcessingPhoto:error:), didFinishProcessingPhoto, "v@:@@@");
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addIvar<Pimpl*> ("owner");
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registerClass();
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}
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static void didFinishProcessingPhoto (id self, SEL, AVCapturePhotoOutput*, AVCapturePhoto* photo, NSError* error)
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{
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if (error != nil)
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{
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String errorString = error != nil ? nsStringToJuce (error.localizedDescription) : String();
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ignoreUnused (errorString);
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JUCE_CAMERA_LOG ("Still picture capture failed, error: " + errorString);
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jassertfalse;
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return;
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}
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auto* imageData = [photo fileDataRepresentation];
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auto image = ImageFileFormat::loadFrom (imageData.bytes, (size_t) imageData.length);
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getOwner (self).imageCaptureFinished (image);
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}
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static Pimpl& getOwner (id self) { return *getIvar<Pimpl*> (self, "owner"); }
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static void setOwner (id self, Pimpl* t) { object_setInstanceVariable (self, "owner", t); }
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};
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AVCapturePhotoOutput* imageOutput = nil;
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std::unique_ptr<NSObject, NSObjectDeleter> delegate;
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};
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#else
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struct PreCatalinaStillImageOutput
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{
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public:
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void addImageCapture (AVCaptureSession* s)
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{
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if (imageOutput != nil)
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return;
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const auto codecType =
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#if defined (MAC_OS_X_VERSION_10_13) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_13
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AVVideoCodecTypeJPEG;
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#else
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AVVideoCodecJPEG;
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#endif
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imageOutput = [[AVCaptureStillImageOutput alloc] init];
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auto imageSettings = [[NSDictionary alloc] initWithObjectsAndKeys: codecType, AVVideoCodecKey, nil];
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[imageOutput setOutputSettings: imageSettings];
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[imageSettings release];
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[s addOutput: imageOutput];
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}
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void removeImageCapture (AVCaptureSession* s)
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{
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if (imageOutput == nil)
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return;
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[s removeOutput: imageOutput];
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[imageOutput release];
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imageOutput = nil;
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}
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NSArray<AVCaptureConnection*>* getConnections() const
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{
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if (imageOutput != nil)
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return imageOutput.connections;
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return nil;
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}
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void triggerImageCapture (Pimpl& p)
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{
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if (auto* videoConnection = p.getVideoConnection())
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{
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[imageOutput captureStillImageAsynchronouslyFromConnection: videoConnection
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completionHandler: ^(CMSampleBufferRef sampleBuffer, NSError* error)
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{
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if (error != nil)
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{
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JUCE_CAMERA_LOG ("Still picture capture failed, error: " + nsStringToJuce (error.localizedDescription));
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jassertfalse;
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return;
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}
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auto* imageData = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation: sampleBuffer];
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auto image = ImageFileFormat::loadFrom (imageData.bytes, (size_t) imageData.length);
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p.imageCaptureFinished (image);
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}];
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}
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}
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static NSArray* getAvailableDevices()
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{
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return [AVCaptureDevice devicesWithMediaType: AVMediaTypeVideo];
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}
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private:
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AVCaptureStillImageOutput* imageOutput = nil;
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};
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#endif
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Pimpl (CameraDevice& ownerToUse, const String& deviceNameToUse, int /*index*/,
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int /*minWidth*/, int /*minHeight*/,
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int /*maxWidth*/, int /*maxHeight*/,
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bool useHighQuality)
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: owner (ownerToUse),
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deviceName (deviceNameToUse)
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{
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session = [[AVCaptureSession alloc] init];
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session.sessionPreset = useHighQuality ? AVCaptureSessionPresetHigh
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: AVCaptureSessionPresetMedium;
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refreshConnections();
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static DelegateClass cls;
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callbackDelegate = (id<AVCaptureFileOutputRecordingDelegate>) [cls.createInstance() init];
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DelegateClass::setOwner (callbackDelegate, this);
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JUCE_BEGIN_IGNORE_WARNINGS_GCC_LIKE ("-Wundeclared-selector")
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[[NSNotificationCenter defaultCenter] addObserver: callbackDelegate
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selector: @selector (captureSessionRuntimeError:)
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name: AVCaptureSessionRuntimeErrorNotification
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object: session];
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JUCE_END_IGNORE_WARNINGS_GCC_LIKE
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}
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~Pimpl()
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{
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[[NSNotificationCenter defaultCenter] removeObserver: callbackDelegate];
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[session stopRunning];
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removeInput();
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removeImageCapture();
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removeMovieCapture();
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[session release];
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[callbackDelegate release];
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}
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//==============================================================================
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bool openedOk() const noexcept { return openingError.isEmpty(); }
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void startSession()
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{
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if (! [session isRunning])
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[session startRunning];
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}
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void takeStillPicture (std::function<void (const Image&)> pictureTakenCallbackToUse)
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{
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if (pictureTakenCallbackToUse == nullptr)
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{
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jassertfalse;
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return;
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}
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pictureTakenCallback = std::move (pictureTakenCallbackToUse);
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triggerImageCapture();
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}
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void startRecordingToFile (const File& file, int /*quality*/)
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{
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stopRecording();
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refreshIfNeeded();
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firstPresentationTime = Time::getCurrentTime();
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file.deleteFile();
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startSession();
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isRecording = true;
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[fileOutput startRecordingToOutputFileURL: createNSURLFromFile (file)
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recordingDelegate: callbackDelegate];
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}
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void stopRecording()
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{
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if (isRecording)
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{
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[fileOutput stopRecording];
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isRecording = false;
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}
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}
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Time getTimeOfFirstRecordedFrame() const
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{
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return firstPresentationTime;
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}
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void addListener (CameraDevice::Listener* listenerToAdd)
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{
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const ScopedLock sl (listenerLock);
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listeners.add (listenerToAdd);
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if (listeners.size() == 1)
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triggerImageCapture();
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}
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void removeListener (CameraDevice::Listener* listenerToRemove)
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{
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const ScopedLock sl (listenerLock);
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listeners.remove (listenerToRemove);
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}
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static StringArray getAvailableDevices()
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{
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auto* devices = decltype (imageOutput)::getAvailableDevices();
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StringArray results;
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for (AVCaptureDevice* device : devices)
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results.add (nsStringToJuce ([device localizedName]));
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return results;
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}
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AVCaptureSession* getCaptureSession()
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{
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return session;
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}
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NSView* createVideoCapturePreview()
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{
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// The video preview must be created before the capture session is
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// started. Make sure you haven't called `addListener`,
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// `startRecordingToFile`, or `takeStillPicture` before calling this
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// function.
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jassert (! [session isRunning]);
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startSession();
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JUCE_AUTORELEASEPOOL
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{
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NSView* view = [[NSView alloc] init];
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[view setLayer: [AVCaptureVideoPreviewLayer layerWithSession: getCaptureSession()]];
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return view;
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}
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}
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private:
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//==============================================================================
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struct DelegateClass : public ObjCClass<NSObject>
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{
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DelegateClass() : ObjCClass<NSObject> ("JUCECameraDelegate_")
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{
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addIvar<Pimpl*> ("owner");
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addProtocol (@protocol (AVCaptureFileOutputRecordingDelegate));
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addMethod (@selector (captureOutput:didStartRecordingToOutputFileAtURL: fromConnections:), didStartRecordingToOutputFileAtURL, "v@:@@@");
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addMethod (@selector (captureOutput:didPauseRecordingToOutputFileAtURL: fromConnections:), didPauseRecordingToOutputFileAtURL, "v@:@@@");
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addMethod (@selector (captureOutput:didResumeRecordingToOutputFileAtURL: fromConnections:), didResumeRecordingToOutputFileAtURL, "v@:@@@");
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addMethod (@selector (captureOutput:willFinishRecordingToOutputFileAtURL:fromConnections:error:), willFinishRecordingToOutputFileAtURL, "v@:@@@@");
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JUCE_BEGIN_IGNORE_WARNINGS_GCC_LIKE ("-Wundeclared-selector")
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addMethod (@selector (captureSessionRuntimeError:), sessionRuntimeError, "v@:@");
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JUCE_END_IGNORE_WARNINGS_GCC_LIKE
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registerClass();
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}
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static void setOwner (id self, Pimpl* owner) { object_setInstanceVariable (self, "owner", owner); }
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static Pimpl& getOwner (id self) { return *getIvar<Pimpl*> (self, "owner"); }
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private:
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static void didStartRecordingToOutputFileAtURL (id, SEL, AVCaptureFileOutput*, NSURL*, NSArray*) {}
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static void didPauseRecordingToOutputFileAtURL (id, SEL, AVCaptureFileOutput*, NSURL*, NSArray*) {}
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static void didResumeRecordingToOutputFileAtURL (id, SEL, AVCaptureFileOutput*, NSURL*, NSArray*) {}
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static void willFinishRecordingToOutputFileAtURL (id, SEL, AVCaptureFileOutput*, NSURL*, NSArray*, NSError*) {}
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static void sessionRuntimeError (id self, SEL, NSNotification* notification)
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{
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JUCE_CAMERA_LOG (nsStringToJuce ([notification description]));
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NSError* error = notification.userInfo[AVCaptureSessionErrorKey];
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auto errorString = error != nil ? nsStringToJuce (error.localizedDescription) : String();
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getOwner (self).cameraSessionRuntimeError (errorString);
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}
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};
|
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//==============================================================================
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void addImageCapture()
|
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{
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imageOutput.addImageCapture (session);
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}
|
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|
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void addMovieCapture()
|
||
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{
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if (fileOutput == nil)
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||
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{
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fileOutput = [[AVCaptureMovieFileOutput alloc] init];
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[session addOutput: fileOutput];
|
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}
|
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}
|
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void removeImageCapture()
|
||
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{
|
||
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imageOutput.removeImageCapture (session);
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}
|
||
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|
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void removeMovieCapture()
|
||
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{
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||
|
|
if (fileOutput != nil)
|
||
|
|
{
|
||
|
|
[session removeOutput: fileOutput];
|
||
|
|
[fileOutput release];
|
||
|
|
fileOutput = nil;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void removeCurrentSessionVideoInputs()
|
||
|
|
{
|
||
|
|
if (session != nil)
|
||
|
|
{
|
||
|
|
NSArray<AVCaptureDeviceInput*>* inputs = session.inputs;
|
||
|
|
|
||
|
|
for (AVCaptureDeviceInput* input : inputs)
|
||
|
|
if ([input.device hasMediaType: AVMediaTypeVideo])
|
||
|
|
[session removeInput:input];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void addInput()
|
||
|
|
{
|
||
|
|
if (currentInput == nil)
|
||
|
|
{
|
||
|
|
auto* availableDevices = decltype (imageOutput)::getAvailableDevices();
|
||
|
|
|
||
|
|
for (AVCaptureDevice* device : availableDevices)
|
||
|
|
{
|
||
|
|
if (deviceName == nsStringToJuce ([device localizedName]))
|
||
|
|
{
|
||
|
|
removeCurrentSessionVideoInputs();
|
||
|
|
|
||
|
|
NSError* err = nil;
|
||
|
|
AVCaptureDeviceInput* inputDevice = [[AVCaptureDeviceInput alloc] initWithDevice: device
|
||
|
|
error: &err];
|
||
|
|
|
||
|
|
jassert (err == nil);
|
||
|
|
|
||
|
|
if ([session canAddInput: inputDevice])
|
||
|
|
{
|
||
|
|
[session addInput: inputDevice];
|
||
|
|
currentInput = inputDevice;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
jassertfalse;
|
||
|
|
[inputDevice release];
|
||
|
|
}
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void removeInput()
|
||
|
|
{
|
||
|
|
if (currentInput != nil)
|
||
|
|
{
|
||
|
|
[session removeInput: currentInput];
|
||
|
|
[currentInput release];
|
||
|
|
currentInput = nil;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void refreshConnections()
|
||
|
|
{
|
||
|
|
[session beginConfiguration];
|
||
|
|
removeInput();
|
||
|
|
removeImageCapture();
|
||
|
|
removeMovieCapture();
|
||
|
|
addInput();
|
||
|
|
addImageCapture();
|
||
|
|
addMovieCapture();
|
||
|
|
[session commitConfiguration];
|
||
|
|
}
|
||
|
|
|
||
|
|
void refreshIfNeeded()
|
||
|
|
{
|
||
|
|
if (getVideoConnection() == nullptr)
|
||
|
|
refreshConnections();
|
||
|
|
}
|
||
|
|
|
||
|
|
AVCaptureConnection* getVideoConnection() const
|
||
|
|
{
|
||
|
|
auto* connections = imageOutput.getConnections();
|
||
|
|
|
||
|
|
if (connections != nil)
|
||
|
|
for (AVCaptureConnection* connection in connections)
|
||
|
|
if ([connection isActive] && [connection isEnabled])
|
||
|
|
for (AVCaptureInputPort* port in [connection inputPorts])
|
||
|
|
if ([[port mediaType] isEqual: AVMediaTypeVideo])
|
||
|
|
return connection;
|
||
|
|
|
||
|
|
return nil;
|
||
|
|
}
|
||
|
|
|
||
|
|
void imageCaptureFinished (const Image& image)
|
||
|
|
{
|
||
|
|
handleImageCapture (image);
|
||
|
|
|
||
|
|
MessageManager::callAsync ([weakRef = WeakReference<Pimpl> { this }, image]() mutable
|
||
|
|
{
|
||
|
|
if (weakRef != nullptr && weakRef->pictureTakenCallback != nullptr)
|
||
|
|
weakRef->pictureTakenCallback (image);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
void handleImageCapture (const Image& image)
|
||
|
|
{
|
||
|
|
const ScopedLock sl (listenerLock);
|
||
|
|
listeners.call ([=] (Listener& l) { l.imageReceived (image); });
|
||
|
|
|
||
|
|
if (! listeners.isEmpty())
|
||
|
|
triggerImageCapture();
|
||
|
|
}
|
||
|
|
|
||
|
|
void triggerImageCapture()
|
||
|
|
{
|
||
|
|
refreshIfNeeded();
|
||
|
|
|
||
|
|
startSession();
|
||
|
|
|
||
|
|
if (auto* videoConnection = getVideoConnection())
|
||
|
|
imageOutput.triggerImageCapture (*this);
|
||
|
|
}
|
||
|
|
|
||
|
|
void cameraSessionRuntimeError (const String& error)
|
||
|
|
{
|
||
|
|
JUCE_CAMERA_LOG ("cameraSessionRuntimeError(), error = " + error);
|
||
|
|
|
||
|
|
if (owner.onErrorOccurred != nullptr)
|
||
|
|
owner.onErrorOccurred (error);
|
||
|
|
}
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
CameraDevice& owner;
|
||
|
|
String deviceName;
|
||
|
|
|
||
|
|
AVCaptureSession* session = nil;
|
||
|
|
AVCaptureMovieFileOutput* fileOutput = nil;
|
||
|
|
#if JUCE_USE_NEW_APPLE_CAMERA_API
|
||
|
|
PostCatalinaPhotoOutput imageOutput;
|
||
|
|
#else
|
||
|
|
PreCatalinaStillImageOutput imageOutput;
|
||
|
|
#endif
|
||
|
|
AVCaptureDeviceInput* currentInput = nil;
|
||
|
|
|
||
|
|
id<AVCaptureFileOutputRecordingDelegate> callbackDelegate = nil;
|
||
|
|
String openingError;
|
||
|
|
Time firstPresentationTime;
|
||
|
|
bool isRecording = false;
|
||
|
|
|
||
|
|
CriticalSection listenerLock;
|
||
|
|
ListenerList<Listener> listeners;
|
||
|
|
|
||
|
|
std::function<void (const Image&)> pictureTakenCallback = nullptr;
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
JUCE_DECLARE_WEAK_REFERENCEABLE (Pimpl)
|
||
|
|
JUCE_DECLARE_NON_COPYABLE (Pimpl)
|
||
|
|
};
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
struct CameraDevice::ViewerComponent : public NSViewComponent
|
||
|
|
{
|
||
|
|
ViewerComponent (CameraDevice& device)
|
||
|
|
{
|
||
|
|
setView (device.pimpl->createVideoCapturePreview());
|
||
|
|
}
|
||
|
|
|
||
|
|
~ViewerComponent()
|
||
|
|
{
|
||
|
|
setView (nil);
|
||
|
|
}
|
||
|
|
|
||
|
|
JUCE_DECLARE_NON_COPYABLE (ViewerComponent)
|
||
|
|
};
|
||
|
|
|
||
|
|
String CameraDevice::getFileExtension()
|
||
|
|
{
|
||
|
|
return ".mov";
|
||
|
|
}
|
||
|
|
|
||
|
|
#undef JUCE_USE_NEW_APPLE_CAMERA_API
|