camappengine/Engine/Inc/CaeEngineImp.h
changeset 0 9b3e960ffc8a
child 10 6bc4220d7f67
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camappengine/Engine/Inc/CaeEngineImp.h	Thu Dec 17 08:51:24 2009 +0200
@@ -0,0 +1,837 @@
+/*
+* Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Camera Application Engine implementation class
+*
+*/
+
+
+
+#ifndef CAEENGINEIMP_H
+#define CAEENGINEIMP_H
+
+//  INCLUDES
+#include <ecam.h>
+#include <videorecorder.h>
+#include "CamCControllerCustomCommands.h"
+#include "CaeEngine.h"
+#include "CaeEngineExtInterface.h"
+#include "CaeCommon.h"
+#include "CaeStillEncoder.h"
+#include "CaeStillDecoder.h"
+#include "CaeCallbackActive.h"              // For making method calls from callbacks.
+#include "CaeDbgUtilities.h"                // For debugging.
+
+#include <e32std.h>
+
+// CONSTANTS
+const TInt KVideoTimesIntervalDefault = 1000000; // Default time interval for Video Recording times call-back.
+
+const TInt KVideoTimesDelay = 100000; // Delay in starting to generate video times, in microseconds.
+
+const TInt KCameraPriority = -1; // Relative priority (-100...100) of camera HW
+
+const TUid KUidBurstModeVFOptimization = {0x4A758866}; // Custom command interface UID used by some products
+
+// FORWARD DECLARATIONS
+class CVideoRecorderUtility;
+class RWsSession;
+class CWsScreenDevice;
+class RWindowBase;
+class CFbsBitmap;
+class CCaeStillQualityLevelsCont;
+class CCaeVideoQualityLevelsCont;
+class CCaeVideoTimes;
+class CCaeStillBurst;
+class CCaeStillStatesActive;
+
+
+// CLASS DECLARATIONS
+
+/**
+* Camera application engine implementation class.
+*/
+
+NONSHARABLE_CLASS( CCaeEngineImp ): public CCaeEngine, 
+                                    public MCameraObserver,
+                                    public MExtensionCallbackInterface,
+					                public MCaeExtEngineInfoCallbackInterface,
+                                    public MVideoRecorderUtilityObserver,
+                                    public MCameraObserver2
+    {
+
+    friend void CCaeCallbackActive::RunL();
+	friend void CCaeCallbackActive::DoCancel();
+
+    public: // Construction and destruction
+
+        static CCaeEngineImp* NewL();
+
+        virtual ~CCaeEngineImp();
+
+    
+    public: // General methods / CCaeEngine.h
+
+        void SetCamAppEngineObserver( 
+            MCamAppEngineObserver& aObserver );
+
+        void GetInfo( 
+            TCamAppEngineInfo& aInfo ) const;
+
+        void InitL( 
+            TBool aCreateSnapImage = ETrue );
+
+        void InitL( 
+            TUid  aSdUidStillQltyLevels, 
+            TBool aCreateSnapImage = ETrue );
+
+        void InitVideoRecorderL();
+        
+        void InitVideoRecorderL( 
+            TUid aSdUidVideoQltyLevels );
+
+        void Reserve();
+
+        void Release();
+
+        void PowerOn();
+
+        void PowerOff();
+
+    
+    public: // Camera settings / CCaeEngine.h
+
+        void SetZoomModeL( 
+            TZoomMode aZoomMode = EZoomModeDigital );
+
+        TZoomMode ZoomMode() const;
+
+        void SetZoomValueL( 
+            TInt aZoomValue = 0 );
+
+        TInt ZoomValue() const;
+
+        void SetBrightnessL( 
+            TInt aBrightness = 0 );
+
+        TInt Brightness() const;
+
+        void SetContrastL( 
+            TInt aContrast = 0 );
+
+        TInt Contrast() const;
+
+        void SetExposureModeL( 
+            CCamera::TExposure aExposureMode = CCamera::EExposureAuto );
+
+        CCamera::TExposure ExposureMode() const;
+
+        void SetWhiteBalanceModeL( 
+            CCamera::TWhiteBalance aWhiteBalanceMode = CCamera::EWBAuto );
+
+        CCamera::TWhiteBalance WhiteBalanceMode() const;
+
+        void SetFlashModeL( 
+            CCamera::TFlash aFlashMode = CCamera::EFlashNone );
+
+        CCamera::TFlash FlashMode() const;
+
+        void ResetToDefaultsL();
+    
+    
+    public: // View Finder / CCaeEngine.h
+
+        void SetViewFinderMirrorL( 
+            TBool aMirror );
+
+        TBool ViewFinderMirror() const;
+
+        void StartViewFinderBitmapsL( 
+            TSize& aVfFrameSize );
+
+        void StartViewFinderBitmapsL( 
+            TSize& aVfFrameSize, 
+            TRect& aCropRect );
+        
+        void StartViewFinderDirectL( 
+            RWsSession&      aWs, 
+            CWsScreenDevice& aScreenDevice, 
+            RWindowBase&     aWindow, 
+            TRect&           aScreenRect );
+
+        void StartViewFinderDirectL( 
+            RWsSession&      aWs, 
+            CWsScreenDevice& aScreenDevice, 
+            RWindowBase&     aWindow, 
+            TRect&           aScreenRect, 
+            TRect&           aCropRect );
+        
+        void StopViewFinder();
+
+        TBool IsViewFinding() const;
+
+        void GetViewFinderSize( 
+            TSize& aVfFrameSize );
+
+    
+    public: // Still image capturing / CCaeEngine.h
+
+        void PrepareStillCaptureL( 
+            TInt aStillQualityIndex );
+        
+        void PrepareStillCaptureL( 
+            TInt         aStillQualityIndex, 
+            const TRect& aCropRect );
+
+        void PrepareStillCaptureL( 
+            const TSize&     aSize, 
+            CCamera::TFormat aFormat,
+            TInt             aCompressionQuality );
+
+        void PrepareStillCaptureL( 
+            const TSize&     aSize, 
+            CCamera::TFormat aFormat, 
+            TInt             aCompressionQuality, 
+            const TRect&     aCropRect );
+
+        TInt StillQualityIndex() const;
+
+        void GetStillFrameSize( 
+            TInt   aStillQualityIndex, 
+            TSize& aSize ) const;
+
+        TInt EstimatedStillSizeInBytes( 
+            TInt aStillQualityIndex ) const;
+
+        void CaptureStill(); 
+        
+        void CancelCaptureStill();
+
+    
+    public: // Video recording / CCaeEngine.h
+    
+        void SetVideoRecordingFileNameL( 
+            const TDesC& aVideoClipFileName );
+
+        void PrepareVideoRecordingL( 
+            TInt aVideoQualityIndex );
+
+        void PrepareVideoRecordingL( 
+            const TSize&  aFrameSize, 
+            TReal32       aFrameRate, 
+            TInt          aBitRate, 
+            TBool         aAudioEnabled,
+            const TDesC8& aMimeType, 
+            const TDesC&  aPreferredSupplier, 
+            const TDesC8& aVideoType = KNullDesC8, 
+            const TDesC8& aAudioType = KNullDesC8 );
+
+        void CloseVideoRecording();
+
+        TInt VideoQualityIndex() const;
+
+        void GetVideoFrameSize( 
+            TInt   aVideoQualityIndex, 
+            TSize& aSize ) const;
+
+        TReal32 VideoFrameRate( 
+            TInt aVideoQualityIndex ) const;
+
+        TInt EstimatedVideoRecordingBitRateL( 
+            TInt aVideoQualityIndex ) const;
+
+        void SetVideoClipMaxSizeL( 
+            TInt aMaxClipSizeInBytes = 0 );
+
+        TInt VideoClipMaxSize() const;
+
+        void SetVideoAudioL( 
+            TBool aAudioEnabled );
+
+        TBool VideoAudio() const;
+
+        void SetVideoTimesIntervalL( 
+            TTimeIntervalMicroSeconds aInterval );
+
+        TTimeIntervalMicroSeconds VideoTimesInterval() const;
+
+        void StartVideoRecording();
+
+        void StopVideoRecording();
+
+        void PauseVideoRecording();
+
+        void ResumeVideoRecording();
+
+        TTimeIntervalMicroSeconds RemainingVideoRecordingTime() const;
+
+        TBool IsVideoRecording() const;
+
+    public: // New overloading method for preparing video recording / CCaeEngine.h
+    
+        void PrepareVideoRecordingL( 
+            const TSize&  aFrameSize, 
+            TReal32       aFrameRate, 
+            TInt          aBitRate, 
+            TBool         aAudioEnabled,
+            TInt          aAudioBitRate, 
+            const TDesC8& aMimeType, 
+            const TDesC&  aPreferredSupplier, 
+            const TDesC8& aVideoType, 
+            const TDesC8& aAudioType );
+
+    public: // Still image burst capturing interface methods / CCaeEngine.h
+
+        void SetCaeStillBurstObserver( 
+            MCaeStillBurstObserver& aObserver );
+
+        TInt SetStillCaptureImageCountL( 
+            TInt aImageCount );
+
+        TInt StillCaptureImageCount() const;
+
+        void SetStillBurstCaptureIntervalL( 
+            TTimeIntervalMicroSeconds aInterval );
+
+        TTimeIntervalMicroSeconds StillBurstCaptureInterval() const;
+
+        void StopStillBurstCapture();
+
+        void PrepareStillCaptureL( 
+            TInt         aStillQualityIndex, 
+            TSize&       aSnapSize );
+
+        void PrepareStillCaptureL( 
+            const TSize&     aSize, 
+            CCamera::TFormat aFormat,  
+            TInt             aCompressionQuality, 
+            const TRect&     aCropRect,
+            TSize&           aSnapSize );
+
+        void SetEvCompensationL( 
+            TInt aEvIndex = 0 );
+
+        TInt EvCompensation() const;
+        
+    public: // Method for switching snap-image creation on/off. / CCaeEngine.h
+    
+        void SetSnapImageCreation( 
+            TBool aCreateSnapImage = ETrue );
+
+    public: // New methods since 2.6 and 2.8 / CCaeEngine.h
+
+    	static CCaeEngineImp* NewL(
+    	    TInt aCameraIndex, TInt aDisplayIndex );
+
+    	void EnumerateStillCaptureSizes(
+    	    TSize& aSize,
+    	    TInt aSizeIndex,
+    	    CCamera::TFormat aFormat ) const;
+
+    	void SetJpegQuality(
+    	    TInt aQuality );
+
+    	TInt JpegQuality() const;
+
+        TAny* CustomInterface(
+			TUid aInterface );
+
+        void SetSnapImageSizeL(
+            TSize& aSize );
+
+        void SetSnapImageColorMode(
+            TDisplayMode aMode );
+
+        void GetOrderL( 
+			RCaeOrderedFeatureList& aOrderedFeatureList );
+
+        void SetOrderL( 
+			const RCaeOrderedFeatureList& aOrderedFeatureList );
+
+        void SetSnapImageSourceL(
+            TSnapImageSource aSnapImageSource );
+
+        void SetImageCodecsL( 
+        	TUid aDecoderUid, TUid aEncoderUid );
+
+        TInt EnumerateVideoFrameSizeL(const TSize& aSize);
+        
+        TInt CCameraHandle() const;
+        	
+        void SetCaeExtensionModeL( TBool aExtModeActive, TBool aCreateSnapImage );
+
+        void ProcessExtViewFinderFrameReadyL( CFbsBitmap& aFrame );
+
+        void ProcessExtSnapImageL( CFbsBitmap& aSnapImage );
+
+        void ProcessExtCapturedImageL( CFbsBitmap& aBitmap, TBool aLastImage );
+        
+        void ProcessExtCapturedImageL( HBufC8* aImageData, TBool aLastImage );
+        
+        void ProcessExtCapturedImageL( TDesC8& aImageDataDes, TBool aLastImage );
+
+        void ProcessExtCancel();
+
+        void SkippedExtensionListL( RCaeOrderedFeatureList& aDisabledExtensions );
+
+        void SetSkippedExtensionList( RCaeOrderedFeatureList& aDisabledExtensions );
+
+        void EnableVideoRecording();
+        
+        void DisableVideoRecording();
+
+        TInt SetAsyncVideoStopMode( TBool aAsyncVideoStopEnabled );
+
+    public: // New public methods
+
+        /**
+        * Checks if still image burst capture should be completed.
+        * @since 2.6
+        * @return Boolean indicating if the burst should be completed.
+        */
+        TBool CheckForStillBurstCompletion();
+        
+    private: // From Camera Observer / ECam.h
+
+        void ReserveComplete( 
+            TInt aError );
+
+        void PowerOnComplete( 
+            TInt aError );
+
+        void ViewFinderFrameReady( 
+            CFbsBitmap& aFrame );
+
+        void ImageReady( 
+            CFbsBitmap* aBitmap, 
+            HBufC8*     aData, 
+            TInt        aError );
+
+        void FrameBufferReady( 
+            MFrameBuffer* /*aFrameBuffer*/, 
+            TInt          /*aError*/ ) {}; // Empty default because not in use.
+   
+    private: // From Video Recorder Utility Observer / VideoRecorder.h
+
+        void MvruoOpenComplete( 
+            TInt aError );
+
+        void MvruoPrepareComplete( 
+            TInt aError );
+
+        void MvruoRecordComplete( 
+            TInt aError );
+
+        void MvruoEvent( 
+            const TMMFEvent& aEvent );
+
+    
+    private: // Private member methods
+
+        /**
+        * C++ constructor.
+        */
+        CCaeEngineImp();
+
+        /**
+        * Symbian OS 2nd phase constructor that can leave.
+        * @param aCameraIndex Index from 0 to CamerasAvailable()-1 inclusive 
+        * specifying the camera device to use.
+        * @param aDisplayIndex Display index specifying the display to use.
+        * @return void
+        */
+        void ConstructL( TInt aCameraIndex, TInt aDisplayIndex );
+
+        /**
+        * Finds all extension dlls and populates the extension arrays.
+        * @since 2.8
+        * @return void
+        */
+		void PopulateExtensionArrayL();
+
+    //// General and settings related private methods. ////
+
+        /**
+        * Initializes the info class ("structure").
+        * @since 2.1
+        * @param aCamera Camera object.
+        * @return void
+        */
+        void InitializeInfo( 
+            const CCamera& aCamera );
+
+        /**
+        * Checks that power is on. If not, then leaves.
+        * @since 2.1
+        * @return void
+        */
+        void CheckPowerL();
+
+        /**
+        * Cancels view finder, still capturing, and video recording.
+        * @since 2.1
+        * @return void
+        */
+        void CancelAllActivities();
+
+        /**
+        * Re-sets settings to the previous values (before releasing camera).
+        * @since 2.1
+        * @return void
+        */
+        void ResetToPreviousSettingsL();
+
+    //// Video recording related private methods. ////
+
+        /**
+        * Cancels video recording.
+        * @since 2.1
+        * @return void
+        */
+        void CancelVideoRecording();
+
+        /**
+        * Prepares video recording settings.
+        * @since 2.1
+        * @return void
+        */
+        void PrepareVideoSettingsL();
+
+        /**
+        * Changes video clip file name.
+        * @since 2.1
+        * @return void
+        */
+        void ChangeVideoFileNameL();
+
+        /**
+        * Finds video type and format UIDs using ECOM.
+        * @since 2.1
+        * @param aMimeType MIME type.
+        * @param aPreferredSupplier Preferred supplier of video encoder.
+        * @return void
+        */
+        void FindVideoUidsL(
+            const TDesC8& aMimeType, 
+            const TDesC&  aPreferredSupplier );
+
+        /**
+        * Convert audio type from TDesC8 to TFourCC.
+        * @since 2.1
+        * @param aAudioType Audio type.
+        * @return Audio type TFourCC code
+        */
+        TFourCC ConvertAndSetVideoAudioTypeL(
+            const TDesC8& aAudioType );
+
+        /**
+        * Generates video recording times via
+        * MCamAppEngineObserver::McaeoVideoRecordingTimes implemented by client.
+        * @since 2.1
+        * @param aEngineImp Camera Application Engine implementation object (this) 
+        * @return ETrue
+        */
+        static TInt VideoRecordingTimesCallback( 
+            TAny* aEngineImp );
+
+    //// Still image burst capturing related private methods. ////
+
+        /**
+        * Gets option flag for still burst support.
+        * @since 2.1
+        * @return Option flag for still burst support
+        */
+        TCamAppEngineInfo::TOptions StillBurstSupport();
+
+        /**
+        * Compares two extension interface array items.
+        * @since 2.8
+        * @param aFirst First item
+        * @param aSecond Second item
+        * @return TInt Result of the comparison
+        */
+        static TBool MatchEqualImplUid( const TCaeExtensionInterfaceImplItem& aFirst, const TCaeExtensionInterfaceImplItem& aSecond );
+
+        /**
+        * Compares two extension interface array items.
+        * @since 2.8
+        * @param aFirst First item
+        * @param aSecond Second item
+        * @return TInt Result of the comparison
+        */
+        static TBool MatchEqualImplPtr( const TCaeExtensionInterfaceImplItem& aFirst, const TCaeExtensionInterfaceImplItem& aSecond );
+
+        /**
+        * Compares two extension interface array items.
+        * @since 2.8
+        * @param aFirst First item
+        * @param aSecond Second item
+        * @return TInt Result of the comparison
+        */
+        static TBool MatchSmallerInitialPriorityAndImplUid( const TCaeExtensionInterfaceImplItem& aFirst, const TCaeExtensionInterfaceImplItem& aSecond );
+
+        /**
+        * Compares two extension interface array items.
+        * @since 2.8
+        * @param aFirst First item
+        * @param aSecond Second item
+        * @return TInt Result of the comparison
+        */
+        static TBool Match( const TCaeOrderedFeatureListItem& aFirst, const TCaeOrderedFeatureListItem& aSecond );
+
+        /**
+        * Updates item order in the internal array or checks aOrderedFeatureArray validity.
+        * @since 2.8
+        * @param aOrderedFeatureArray Feature array sorted by the wanted calling order in an interface.
+        * @param iUpdate Whether to update the internal raays or just to check validity of aOrderedFeatureArray.
+        * @return void.
+        */
+		void DoSetOrderL( const RCaeOrderedFeatureList& aOrderedFeatureList, TBool iUpdate );
+
+	private: // From MCaeEngineExtensionInterface
+
+		TBool IsInterfaceSupported( TUid aInterfaceUid );
+
+		TInt AddExtensionInterface( TUid aInterfaceUid, TUid aExtensionUid, TAny* aImplementationPtr, TInt aInitialPriority = 0 );
+
+		TInt RemoveExtensionInterface( TUid aInterfaceUid, TAny* aImplementationPtr );
+
+		TInt AddCustomInterface( TUid aInterfaceUid, TAny* aImplementationPtr );
+
+		TAny* GetCallbackInterface( TUid aInterfaceUid );
+
+        void RegisterFlags( TUint32 aFlags );
+
+        void DeregisterFlags( TUint32 aFlags );
+
+	private: // From MCaeExtEngineInfoCallbackInterface
+
+		TSize McaeExtStillImageSize();
+
+		TSize McaeExtSnapImageSize();
+
+		TSize McaeExtViewFinderSize();
+
+		void McaeExtCheckPowerL();
+
+		TInt McaeExtDisplayIndex();
+
+    private: // From Camera Observer2 / ECam.h
+
+        void HandleEvent(const TECAMEvent& aEvent);
+
+        void ViewFinderReady(MCameraBuffer& aCameraBuffer,TInt aError);
+
+        void ImageBufferReady(MCameraBuffer& aCameraBuffer,TInt aError);
+    
+        void VideoBufferReady(MCameraBuffer& aCameraBuffer,TInt aError);
+
+    private: // Data
+    
+    //// Pointers. ////
+
+        // Camera API implementation object.
+        CCamera* iCamera;
+
+        // State machine for still capturing.
+        CCaeStillStatesActive* iStillStatesActive; 
+
+		// All CAE Extension modules
+		RPointerArray<MExtension> iExtension;
+
+		// All extension interface implementations.
+		RArray<TCaeExtensionInterfaceImplListItem> iExtInterfaceImplementationLists;
+
+		// All custom interface implementations.
+		RArray<TCaeCustomInterfaceImplItem> iExtCustomInterfaceImplementations;
+
+        // Video Recorder API implementation object.
+        CVideoRecorderUtility* iVideoRecorder;
+
+        // Camera Application Engine observer.
+        MCamAppEngineObserver* iCaeObserver;
+
+        // Camera Application Engine info object.
+        TCamAppEngineInfo* iInfo;
+
+        // Still image capturing quality levels container.
+        CCaeStillQualityLevelsCont* iStillQualityLevelsCont;
+
+        // Video recording quality levels container.
+        CCaeVideoQualityLevelsCont* iVideoQualityLevelsCont;
+
+        // Active object for calling Camera Application Engine methods 
+        // indirectly from callbacks.
+        CCaeCallbackActive* iCallbackActive;
+
+        // Video recording frame size.
+        // This is ptr because video recorder is not necessarily initialized.
+        TSize* iVideoFrameSize;
+
+        // Video recording frame size (to be prepared).
+        // This is ptr because video recorder is not necessarily initialized.
+        TSize* iVideoFrameSizePrep;
+
+        // Video recording times generator.
+        CCaeVideoTimes *iVideoTimes;
+
+        // Video recording times callback.
+        TCallBack* iVideoTimesCallback;
+
+        // Video clip file name.
+        HBufC* iVideoClipFileName;
+        
+        // Video Recorder video type.
+        HBufC8* iVideoType;
+
+    //// Booleans (mostly reporting state). ////
+
+        // Boolean indicating if camera module is reserved for the engine.
+        TBool iReserved;
+
+        // Boolean indicating if camera module power is on.
+        TBool iPowerOn;
+
+        // Boolean indicating if video recording is initialized.
+        TBool iVideoInitialized;
+
+        // Boolean indicating if still image capture is prepared.
+        TBool iStillPrepared;
+
+        // Boolean indicating if video recording is opened.
+        TBool iVideoOpened;
+
+        // Boolean indicating if video recording is prepared.
+        TBool iVideoPrepared;
+
+        // Boolean indicating if view finder is currently running.
+        TBool iViewFinderRunning;
+
+        // Boolean indicating if video recording is currently running.
+        TBool iVideoRecordingRunning;
+
+        // Boolean indicating if video recording is currently paused.
+        TBool iVideoRecordingPaused;
+
+        // Boolean indicating if the engine should reset its basic settings 
+        // to the previous ones when re-reserving.
+        TBool iResetToPreviousSettings;
+
+    //// Camera module settings related variables. ////
+
+        // Current zoom mode.
+        TZoomMode iZoomMode;
+
+        // Current zoom value.
+        TInt iZoomValue;
+
+        // Current brightness value.
+        TInt iBrightness;
+
+        // Current contrast value.
+        TInt iContrast;
+
+        // Camera exposure mode.
+        CCamera::TExposure iExposureMode;
+
+        // Camera white balance mode.
+        CCamera::TWhiteBalance iWhiteBalanceMode;
+
+        // Camera flash mode.
+        CCamera::TFlash iFlashMode;
+
+    //// View finder related variables. ////
+
+        // View finder size when viewfinder has been started.
+        TSize iTrueViewFinderSize;
+
+    //// Still capturing related variables. ////
+
+        // Still image capture quality level index currently prepared.
+        TInt iStillQualityIndex; 
+
+        // Display index
+        TInt iDisplayIndex;
+
+      //// Video recording related variables. ////
+
+        // Video recording quality level index currently prepared.
+        TInt iVideoQualityIndex;
+
+        // Handle to the camera used.
+        TInt iCameraHandle;
+
+        // Video Recorder controller UID.
+        TUid iVideoControllerUid;
+
+        // Video Recorder format UID.
+        TUid iVideoFormatUid;
+
+        // Video Recorder audio type.
+        TFourCC iVideoAudioType;
+
+        // Interval for calling McaeoVideoRecordingTimes.
+        TTimeIntervalMicroSeconds32 iVideoTimesInterval;
+
+		// Previous valid elapsed time value
+    	TTimeIntervalMicroSeconds iPrevTimeElapsed;
+    	
+		// Previous valid remaining time value
+    	TTimeIntervalMicroSeconds iPrevTimeRemaining;
+    	
+    //// Video recording parameters prepared. ////
+        
+        // Video recording frame rate.
+        TReal32 iVideoFrameRate;
+
+        // Video recording bit rate.
+        TInt iVideoBitRate;
+
+        // Boolean indicating if audio is enabled with video recording.
+        TBool iVideoAudioEnabled;
+
+        // Video recording audio bit rate.
+        TInt iVideoAudioBitRate;
+
+        // Video recording maximum clip size in bytes.
+        TInt iMaxClipSizeInBytes;
+
+    //// Video recording parameters to be prepared. ////
+
+        // Video recording frame rate (to be prepared).
+        TReal32 iVideoFrameRatePrep;
+
+        // Video recording bit rate (to be prepared).
+        TInt iVideoBitRatePrep;
+
+        // Boolean indicating if audio is enabled with video recording (to be prepared).
+        TBool iVideoAudioEnabledPrep;
+
+        // Video recording audio bit rate (to be prepared).
+        TInt iVideoAudioBitRatePrep;
+
+        // Video recording maximum clip size in bytes (to be prepared).
+        TInt iMaxClipSizeInBytesPrep;
+
+        // Boolean indicating if parameters are/were prepared in video recording preparation..
+        TBool iPrepPars;
+
+        // Boolean indicating if video audio bit rate should be prepared.
+        TBool iPrepareVideoAudioBitRate;
+        
+        // Boolean indicating if video stopping should be asynchronously or synchronously (default).
+        TBool iAsyncVideoStopEnabled;
+    };
+
+
+#endif // CAEENGINEIMP_H