khronosfws/openmax_al/src/mmf_adaptation/cmmfbackendengine.cpp
author hgs
Fri, 28 May 2010 19:26:28 -0500
changeset 21 2ed61feeead6
parent 20 b67dd1fc57c5
child 25 6f7ceef7b1d1
permissions -rw-r--r--
201021

/*
* Copyright (c) 2009 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:
*
*/

#include "cmmfbackendengine.h"
#include <string.h>
#include <ctype.h>
#include <uri8.h>
#include <uri16.h>
#include "markerpositiontimer.h"
#include "positionupdatetimer.h"
#include "profileutilmacro.h"

extern "C" {
#include "xaadaptationmmf.h"
}

#define RET_IF_ERR(res, val) if (res != KErrNone) return val

const XAuint32 XA_PLAYSTATE_PLAYERUNINITIALIZED = 0;

CMMFBackendEngine* CMMFBackendEngine::NewL()
    {
    CMMFBackendEngine* self = new (ELeave) CMMFBackendEngine();
    CleanupStack::PushL(self);
    self->ConstructL();
    CleanupStack::Pop(self);
    return self;
    }

CMMFBackendEngine::~CMMFBackendEngine()
    {
    Close();
    Destroy();
    }

CMMFBackendEngine::CMMFBackendEngine()
:iPositionUpdatePeriod(1000), /* default is 1000 millisec */
 iUriPtr(NULL,0)
    {
/*    m_bWindowReferencePassed = FALSE;*/
    iRecordState = ERecorderNotReady;
    iPositionUpdateTimer = NULL;
    iMediaPlayerState = XA_PLAYSTATE_PLAYERUNINITIALIZED;
    iMMFPlayerState = EPlayerClosed;
    }

void CMMFBackendEngine::ConstructL()
    {
    iAPIBeingUsed = ENoUtility;
    iActiveSchedulerWait = new (ELeave) CActiveSchedulerWait;
    }

void CMMFBackendEngine::InitAudioRecorderUtilityL()
    {
    if (!iAudioRecorder)
        {
        iBaseAudioRecorder = CMdaAudioRecorderUtility::NewL(*this);
        iAudioRecorder = (CMdaAudioRecorderUtility*)iBaseAudioRecorder;
        }
    }

void CMMFBackendEngine::InitAudioPlayerUtilityL()
    {
    if (!iAudioPlayer)
        {
        iBaseAudioPlayer = CMdaAudioPlayerUtility::NewL(*this);
        iAudioPlayer = (CMdaAudioPlayerUtility*)iBaseAudioPlayer;
        }
    InitPlayerTimersL();
    }

void CMMFBackendEngine::InitVideoPlayerUtilityL()
    {
    if (!iVideoPlayer)
        {
        iBaseVideoPlayer = CVideoPlayerUtility2::NewL(*this, EMdaPriorityNormal, EMdaPriorityPreferenceTimeAndQuality);
        iVideoPlayer = (CVideoPlayerUtility2*)iBaseVideoPlayer;
        iVideoPlayer->RegisterForVideoLoadingNotification(*this);
        }
    InitPlayerTimersL();
    }

void CMMFBackendEngine::InitPlayerTimersL()
    {
    if (!iMarkerPositionTimer)
        {
        iMarkerPositionTimer = CMarkerPositionTimer::NewL(iAudioPlayer, iVideoPlayer);
        iMarkerPositionTimer->SetContext(iAdaptContext);
        }
    if (!iPlayItfPositionUpdateTimer)
        {
        iPlayItfPositionUpdateTimer = CPositionUpdateTimer::NewL(iAudioPlayer, iVideoPlayer);
        iPlayItfPositionUpdateTimer->SetContext(iAdaptContext);
        }
    iMarkerPositionTimer->Stop();
    iPlayItfPositionUpdateTimer->Stop();
    }

TInt CMMFBackendEngine::SetFileName(char* uri, XAuint32 format, TFuncInUse func)
    {
    TInt err(KErrNone);
    _LIT8(KFileSlash,"file:///");
    TInt fileslashlen = KFileSlash().Length();
    if (func == ERecord)
        {
        if (iRecordState == ERecorderNotReady)
            {
            iFileFormat = format;
            iAPIBeingUsed = DetermineAPIToUse(uri, ERecord);
            err = XA_RESULT_INTERNAL_ERROR;
            if (iAPIBeingUsed == EAudioRecorderUtility)
                {
                /* Initialize URI as needed by MMF utilities */
                err = InitializeURIForMMFUtil(uri);
                RET_IF_ERR(err, XA_RESULT_INTERNAL_ERROR);
                /* Initalize Recorder related objects */
                TRAP(err, InitAudioRecorderUtilityL());
                RET_IF_ERR(err, XA_RESULT_INTERNAL_ERROR);
    
                TRAP(err, iAudioRecorder->OpenFileL(iUriPtr));
                RET_IF_ERR(err, XA_RESULT_INTERNAL_ERROR);
                /* Wait until we receive moscostatechanged callback */
                if(!iActiveSchedulerWait->IsStarted())
                    {
                    iActiveSchedulerWait->Start();
                    }
                RET_IF_ERR(iErrorCode, XA_RESULT_INTERNAL_ERROR);
               }
            }
        }
    else
        {
        /* The second one is needed for dynamic source interface */
        if ((iMediaPlayerState == XA_PLAYSTATE_PLAYERUNINITIALIZED) ||
                (iMediaPlayerState == XA_PLAYSTATE_STOPPED))
            {
            iFileFormat = format;
            iAPIBeingUsed = DetermineAPIToUse(uri, EPlay);
            err = XA_RESULT_INTERNAL_ERROR;
            if (iAPIBeingUsed == EAudioPlayerUtility)
                {
                /* Initialize URI as needed by MMF utilities */
                err = InitializeURIForMMFUtil(uri);
                RET_IF_ERR(err, XA_RESULT_INTERNAL_ERROR);
                /* Initalize Player related objects */
                TRAP(err, InitAudioPlayerUtilityL());
                RET_IF_ERR(err, XA_RESULT_INTERNAL_ERROR);

                TAG_TIME_PROFILING_BEGIN;
                TRAP(err, iAudioPlayer->OpenFileL(iUriPtr));
                RET_IF_ERR(err, XA_RESULT_INTERNAL_ERROR);
                TAG_TIME_PROFILING_END;
                PRINT_TO_CONSOLE_TIME_DIFF;

                /* Wait until we receive mapc init complete */
                PRINT_TO_CONSOLE_HOME_TIME;
                if (!iActiveSchedulerWait->IsStarted())
                    {
                    iActiveSchedulerWait->Start();
                    }
                RET_IF_ERR(iErrorCode, XA_RESULT_INTERNAL_ERROR);
                }
            else if (iAPIBeingUsed == EVideoPlayerUtility)
                {
                /* Initialize URI as needed by MMF utilities */
                err = InitializeURIForMMFUtil(uri);
                RET_IF_ERR(err, XA_RESULT_INTERNAL_ERROR);
                /* Initalize Player related objects */
                TRAP(err, InitVideoPlayerUtilityL());
                RET_IF_ERR(err, XA_RESULT_INTERNAL_ERROR);

                if(iUriType == ELocal)
                    {
                    /* Open file */
                    TAG_TIME_PROFILING_BEGIN;
                    TRAP(err, iVideoPlayer->OpenFileL(iUriPtr));
                    RET_IF_ERR(err, XA_RESULT_INTERNAL_ERROR);
                    TAG_TIME_PROFILING_END;
                    PRINT_TO_CONSOLE_TIME_DIFF;
                    }
                else
                    {
                    /* Open URL */
                    TAG_TIME_PROFILING_BEGIN;
                    TRAP(err, iVideoPlayer->OpenUrlL(iUriPtr));
                    RET_IF_ERR(err, XA_RESULT_INTERNAL_ERROR);
                    TAG_TIME_PROFILING_END;
                    PRINT_TO_CONSOLE_TIME_DIFF;
                    }
                /* Wait until we receive  MvpuoOpenComplete */
                PRINT_TO_CONSOLE_HOME_TIME;
                if (!iActiveSchedulerWait->IsStarted())
                    {
                    iActiveSchedulerWait->Start();
                    }
                RET_IF_ERR(iErrorCode, XA_RESULT_INTERNAL_ERROR);

                /* Prepare utility */
                TAG_TIME_PROFILING_BEGIN_NO_VAR_DEF;
                iVideoPlayer->Prepare();
                TAG_TIME_PROFILING_END_NO_VAR_DEF;
                PRINT_TO_CONSOLE_TIME_DIFF;

                /* Wait until we receive  MvpuoPrepareComplete */
                PRINT_TO_CONSOLE_HOME_TIME_NO_VAR_DEF;
                if (!iActiveSchedulerWait->IsStarted())
                    {
                    iActiveSchedulerWait->Start();
                    }
                RET_IF_ERR(iErrorCode, XA_RESULT_INTERNAL_ERROR);
                }
           }
        }
    if (err != KErrNone)
        {
        err = XA_RESULT_INTERNAL_ERROR;
        }
    return err;
    }

TInt CMMFBackendEngine::DetermineAPIToUse(char* uri, TFuncInUse aFunc)
    {
    char* dotPtr = NULL;
    char ext[MAX_EXTENSION_SIZE] = { 0 };
    int extLen;

    int colpos;
    char urischeme[MAX_EXTENSION_SIZE] = { 0 };
    int urischemeLen;

    dotPtr = strrchr(uri, (int)'.');
    if (!dotPtr)
        {
        return KErrNotFound;
        }

    strncpy(ext, dotPtr,strlen(dotPtr));
    /*Null terminate the string*/
    ext[strlen(dotPtr)] = '\0';
    extLen = sizeof(ext);
    for(unsigned int i=0; i < extLen; i++)
        {
        ext[i] = tolower(ext[i]);
        }

    colpos = strcspn(uri,":");

    strncpy(urischeme, uri, colpos+1);
    /*Null terminate the string*/
    urischeme[colpos+1] = '\0';
    urischemeLen = sizeof(urischeme);
    for(unsigned int i=0; i < urischemeLen; i++)
        {
        urischeme[i] = tolower(urischeme[i]);
        }
    
    
    
    if (aFunc == ERecord)
        {
        return EAudioRecorderUtility;
        }
    else
        {
        if(!strcasecmp(urischeme, "file:"))
            {
            if (!strcasecmp(ext, ".mp3") ||
               !strcasecmp(ext, ".amr") ||
               !strcasecmp(ext, ".aac") ||
               !strcasecmp(ext, ".mid") ||
               !strcasecmp(ext, ".wav") ||
               !strcasecmp(ext, ".awb"))
                {
                return EAudioPlayerUtility;
                }
              else
                {
                return EVideoPlayerUtility;
                }
            }
        else
            {
            return EVideoPlayerUtility;
            }
        }
    }

//From MVidePlayerUtilityObserver
void CMMFBackendEngine::MvpuoOpenComplete(TInt aError)
    {
    PRINT_TO_CONSOLE_HOME_TIME;

    iErrorCode = aError;
    if (iErrorCode == KErrNone)
        {
        iMMFPlayerState = EPlayerOpened;
        }
    if (iActiveSchedulerWait->IsStarted())
        {
        iActiveSchedulerWait->AsyncStop();
        }
    }

void CMMFBackendEngine::MvpuoPrepareComplete(TInt aError)
    {
    PRINT_TO_CONSOLE_HOME_TIME;

    TAutoScaleType autoScale = EAutoScaleBestFit;
    iErrorCode = aError;
    iMediaPlayerState = XA_PLAYSTATE_PLAYERUNINITIALIZED;
    iMediaDuration = 0;
    iMarkerPositionTimer->ResetPlayer();
    iPlayItfPositionUpdateTimer->ResetPlayer();
    if (iErrorCode == KErrNone)
        {
        iMMFPlayerState = EPlayerPrepared;
        TAG_TIME_PROFILING_BEGIN;
        TRAP(iErrorCode, iMediaDuration = iVideoPlayer->DurationL());
        TAG_TIME_PROFILING_END;
        PRINT_TO_CONSOLE_TIME_DIFF;
        if (iErrorCode == KErrNone)
            {
            iPlaybackHead = 0;
            iMediaPlayerState = XA_PLAYSTATE_STOPPED;
            iMarkerPositionTimer->UseVideoPlayer();
            iPlayItfPositionUpdateTimer->UseVideoPlayer();
            if (m_pWs && m_pScr && m_pWindow)
                {
                TRect videoExtent = TRect(m_pWindow->Size());
                TRect clipRect = TRect(m_pWindow->Size());        
                TAG_TIME_PROFILING_BEGIN;
                TRAP_IGNORE(iVideoPlayer->AddDisplayWindowL(*m_pWs, *m_pScr, *m_pWindow, videoExtent, clipRect));
                TRAP_IGNORE(iVideoPlayer->SetAutoScaleL(*m_pWindow, autoScale));
                TAG_TIME_PROFILING_END;
                PRINT_TO_CONSOLE_TIME_DIFF;
                }
            }
        }
    if (iActiveSchedulerWait->IsStarted())
        {
        iActiveSchedulerWait->AsyncStop();
        }
    }

void CMMFBackendEngine::MvpuoFrameReady(CFbsBitmap& /*aFrame*/,TInt /*aError*/)
    {

    }
void CMMFBackendEngine::MvpuoPlayComplete(TInt aError)
    {
    iErrorCode = aError;
    if (iErrorCode == KErrNone)
        {
        iPlaybackHead = iMediaDuration;
        /* Per OpenMAX AL Spec, when playback is completed, media player stays in
         * paused state with playhead at the end of the media clip */
        iMediaPlayerState = XA_PLAYSTATE_PAUSED;
        DoPostEvent(XA_PLAYEVENT_HEADATEND);
        }
    else
        {
        iPlaybackHead = 0;
        iMediaPlayerState = XA_PLAYSTATE_STOPPED;
        XAAdaptEvent event = {XA_PLAYITFEVENTS, XA_OBJECT_EVENT_RESOURCES_LOST, 0, NULL};
        XAAdaptationBase_SendAdaptEvents((XAAdaptationBaseCtx*)iAdaptContext, &event );
        }
    iMMFPlayerState = EPlayerPrepared;
    iMarkerPositionTimer->Stop();
    iPlayItfPositionUpdateTimer->Stop();
    }

void CMMFBackendEngine::MvpuoEvent(class TMMFEvent const & event)
    {
    //RDebug::Print(_L("CMMFBackendEngine::MvpuoEvent (0x%x %d)"), event.iEventType, event.iErrorCode);

    if (event.iEventType == KMMFEventCategoryVideoPlayerGeneralError &&
        event.iErrorCode == KErrHardwareNotAvailable)
        {
        //RDebug::Print(_L("CMMFBackendEngine::MvpuoEvent: Hardware Not Available"));
        }

    else if (event.iEventType == KMMFEventCategoryVideoPlayerGeneralError &&
             event.iErrorCode == KErrMMPartialPlayback)
        {
        //RDebug::Print(_L("CMMFBackendEngine::MvpuoEvent: Partial playback"));
        }    
    if (event.iEventType == KMMFEventCategoryVideoPlayerGeneralError &&
        event.iErrorCode == -12014)
        {
        //RDebug::Print(_L("CMMFBackendEngine::MvpuoEvent: Audio Device taken"));
        PausePlayback();
        XAAdaptEvent event = {XA_PLAYITFEVENTS, XA_OBJECT_EVENT_RESOURCES_LOST, 0, NULL};
        XAAdaptationBase_SendAdaptEvents((XAAdaptationBaseCtx*)iAdaptContext, &event );
        }
    else if (event.iEventType == KMMFRefreshMetaData)
        {
        //RDebug::Print(_L("CMMFBackendEngine::MvpuoEvent: EventType == KMMFRefreshMetaData"));
        }
    else
        {
        //RDebug::Print(_L("CMMFBackendEngine::MvpuoEvent: Unhandled event"));
        }

    }

// From MRebufferCallback
void CMMFBackendEngine::MvloLoadingStarted()
    {
    }

void CMMFBackendEngine::MvloLoadingComplete()
    {
    //file playing
    }

//MMdaAudioPlayerCallback
void CMMFBackendEngine::MapcInitComplete(TInt aError,
                                          const TTimeIntervalMicroSeconds& aDuration)
    {
    PRINT_TO_CONSOLE_HOME_TIME;

    iErrorCode = aError;
    iMediaPlayerState = XA_PLAYSTATE_PLAYERUNINITIALIZED;
    iMMFPlayerState = EPlayerClosed;
    iMediaDuration = 0;
    iMarkerPositionTimer->ResetPlayer();
    iPlayItfPositionUpdateTimer->ResetPlayer();
    if (iErrorCode == KErrNone)
        {
        iMediaDuration = aDuration;
        iPlaybackHead = 0;
        iMediaPlayerState = XA_PLAYSTATE_STOPPED;
        iMMFPlayerState = EPlayerOpened;
        iMarkerPositionTimer->UseAudioPlayer();
        iPlayItfPositionUpdateTimer->UseAudioPlayer();
        }
    if (iActiveSchedulerWait->IsStarted())
        {
        iActiveSchedulerWait->AsyncStop();
        }
    }


void CMMFBackendEngine::MapcPlayComplete(TInt aError)
    {
    iErrorCode = aError;
    if (iErrorCode == KErrNone)
        {
        /* Now we should have better value. Start using that */
        iAudioPlayer->Duration(iMediaDuration);
        iPlaybackHead = iMediaDuration;
        /* Per OpenMAX AL Spec, when playback is completed, media player stays in
         * paused state with playhead at the end of the media clip */
        iMediaPlayerState = XA_PLAYSTATE_PAUSED;
        DoPostEvent(XA_PLAYEVENT_HEADATEND);
        iMMFPlayerState = EPlayerOpened;
        }
    else
        {
        iAudioPlayer->GetPosition(iPlaybackHead);
        iMediaPlayerState = XA_PLAYSTATE_PAUSED;
        iMMFPlayerState = EPlayerPaused;
        XAAdaptEvent event = {XA_PLAYITFEVENTS, XA_OBJECT_EVENT_RESOURCES_LOST, 0, NULL};
        XAAdaptationBase_SendAdaptEvents((XAAdaptationBaseCtx*)iAdaptContext, &event );
        }
    iMarkerPositionTimer->Stop();
    iPlayItfPositionUpdateTimer->Stop();
    }

// from MMdaObjectStateChangeObserver
void CMMFBackendEngine::MoscoStateChangeEvent(CBase* /*aObject*/, TInt aPreviousState, TInt aCurrentState, TInt aErrorCode)
    {
    TInt err(KErrNone);
    iPreviousRecordState = aPreviousState;
    iCurrentRecordState = aCurrentState;
    iErrorCode = aErrorCode;
    //RDebug::Print(_L("CMMFBackendEngine::MoscoStateChangeEvent 1 Error[%d]"),aErrorCode);
    if (iCurrentRecordState == CMdaAudioClipUtility::EOpen)  //EOpen
        {
        //outputfile is open and ready for recording
        iRecordState = CMMFBackendEngine::ERecorderOpen;
        if (iErrorCode == KErrNone)
            {
            if (iPreviousRecordState == CMdaAudioClipUtility::ENotReady)
                {
                //RDebug::Print(_L("CMMFBackendEngine::MoscoStateChangeEvent 2"));
                TRAP(err,iAudioInputRecord = CAudioInput::NewL( *iAudioRecorder ));
                if(err == KErrNone)
                    {
                    RArray<CAudioInput::TAudioInputPreference> inputArray;
                    inputArray.Append( CAudioInput::EDefaultMic );
                    // Set Audio Input
                    TRAP(err, iAudioInputRecord->SetAudioInputL( inputArray.Array( ) ));
                    inputArray.Close();
                    }
                TMMFMessageDestination destination(KUidMetaDataWriteCustomCommand);
                TMMFMessageDestinationPckg pckg = TMMFMessageDestinationPckg(destination);
                TInt ret = iAudioRecorder->RecordControllerCustomCommandSync(pckg, 0, KNullDesC8, KNullDesC8);
                //RDebug::Print(_L("CMMFBackendEngine::MoscoStateChangeEvent 3 [%d]"),ret);
                if (ret != KErrNone && iFileFormat == XA_CONTAINERTYPE_MP4)
                    {
                    iPauseSupportMP4 = FALSE;
                    }
                if (iActiveSchedulerWait->IsStarted())
                    {
                    iActiveSchedulerWait->AsyncStop();
                    }
                }
            }
        else
            {
            XAAdaptEvent event = {XA_RECORDITFEVENTS, XA_OBJECT_EVENT_RESOURCES_LOST, 0, NULL};
            XAAdaptationBase_SendAdaptEvents((XAAdaptationBaseCtx*)iAdaptContext, &event );
            }
        }
    else if (iCurrentRecordState == CMdaAudioClipUtility::ERecording)  //ERecording
        {
        iRecordState = CMMFBackendEngine::ERecorderRecording;
        iPositionUpdateTimer->Start(iTimerDelay);
        XAAdaptEvent event = {XA_RECORDITFEVENTS, XA_RECORDEVENT_HEADMOVING, 0, NULL};
        XAAdaptationBase_SendAdaptEvents((XAAdaptationBaseCtx*)iAdaptContext, &event );
        }
    else   //ENotReady
        {
        //outputfile is not open
        iRecordState = CMMFBackendEngine::ERecorderNotReady;
        }
    }

TInt CMMFBackendEngine::SetRecorderState(TRecorderState state, XAboolean stopCalled)
    {
    TInt err(KErrNone);

    if (iAPIBeingUsed != EAudioRecorderUtility)
        {
        return XA_RESULT_INTERNAL_ERROR;
        }

    switch(state)
        {
        case ERecorderNotReady:
            iAudioRecorder->Close();
            iRecordState = ERecorderNotReady;
            break;
        case ERecorderOpen:
            if (iFileFormat == XA_CONTAINERTYPE_MP4 && !iPauseSupportMP4 && !stopCalled)
                {
                err = KErrNotSupported;
                return err;
                }
            iPositionUpdateTimer->Stop();
            iAudioRecorder->Stop();
            iRecordState = ERecorderOpen;
            break;
        case ERecorderRecording:
            TRAP(err, iAudioRecorder->RecordL());
            break;
        }
    return err;
    }

void CMMFBackendEngine::Close()
    {
    if (iMarkerPositionTimer)
        {
        iMarkerPositionTimer->Stop();
        }
    if (iPlayItfPositionUpdateTimer)
        {
        iPlayItfPositionUpdateTimer->Stop();
        }

    if (iBaseVideoPlayer && iVideoPlayer)
        {
        switch(iMMFPlayerState)
            {
            case EPlayerPlaying:
            case EPlayerPaused:
            case EPlayerPrepared:
                iVideoPlayer->Stop();
            case EPlayerOpened:
            if (m_pWs && m_pScr && m_pWindow)
                {
                iVideoPlayer->RemoveDisplayWindow(*m_pWindow);
                }
                iVideoPlayer->Close();
            case EPlayerClosed:
            default:
                break;
            };
        }
    
    // deleting the AudioInput object
    if(iAudioInputRecord)
        {
          delete iAudioInputRecord;
          iAudioInputRecord = NULL;
        }
    
    if (iBaseAudioPlayer && iAudioPlayer)
        {
        iAudioPlayer->Close();
        }

    if (iBaseAudioRecorder)
        {
        iAudioRecorder->Close();
        }

    if(iPositionUpdateTimer)
        {
        iPositionUpdateTimer->Stop();
        }

    if (iActiveSchedulerWait && iActiveSchedulerWait->IsStarted())
        {
        iActiveSchedulerWait->AsyncStop();
        }
    }

void CMMFBackendEngine::Destroy()
    {
    delete iPositionUpdateTimer;
    iPositionUpdateTimer = NULL;
    delete iUri;
    iUri = NULL;
    delete iMarkerPositionTimer;
    iMarkerPositionTimer = NULL;
    delete iPlayItfPositionUpdateTimer;
    iPlayItfPositionUpdateTimer = NULL;
    delete iBaseVideoPlayer;
    iBaseVideoPlayer = NULL;
    iVideoPlayer = NULL;
    delete iBaseAudioPlayer;
    iBaseAudioPlayer = NULL;
    iAudioPlayer = NULL;
    delete iBaseAudioRecorder;
    iBaseAudioRecorder = NULL;
    iAudioRecorder = NULL;
    delete iActiveSchedulerWait;
    iActiveSchedulerWait = NULL;
    delete m_pScr;
    m_pScr = NULL;
    }

TInt CMMFBackendEngine::GetRecordPosition(XAuint64* position)
    {
    TInt err(KErrNone);
    *position = iAudioRecorder->Position().Int64();
    return err;
    }

TInt CMMFBackendEngine::SetPositionUpdatePerioed(XAmillisecond period)
    {
    TInt err(KErrNone);
    iTimerDelay = period;
    return err;
    }

TInt CMMFBackendEngine::SetAdaptContext(void* adaptcontext)
    {
    TInt err(KErrNone);
    iAdaptContext = adaptcontext;
    TRAP(err, iPositionUpdateTimer = new (ELeave) LocalTimer(this, iAdaptContext));
    if (!err)
        {
        iPositionUpdateTimer->PostInit();
        }
    return err;
    }

TInt CMMFBackendEngine::GetCodecId(XAuint32* codecid)
    {
    TInt err(KErrNone);

    if(iAPIBeingUsed == EAudioRecorderUtility)
        {
        if(iRecordState != CMMFBackendEngine::ERecorderNotReady)
            {
            TFourCC dest;
            TRAP(err, dest = iAudioRecorder->DestinationDataTypeL());
            if(err == KErrNone)
                {
                *codecid = dest.FourCC();
                }
            }
        }
    else if(iAPIBeingUsed == EAudioPlayerUtility)
        {
        if(iMediaPlayerState != XA_PLAYSTATE_PLAYERUNINITIALIZED)
            {
            TMMFMessageDestinationPckg pckg(KUidInterfaceMMFAudioController);
            TPckgBuf<TMMFAudioConfig> configPackage;
            TInt err =  iAudioPlayer->CustomCommandSync(pckg,
                                                        EMMFAudioControllerGetSourceDataType,
                                                        KNullDesC8,
                                                        KNullDesC8,
                                                        configPackage);
            if(err == KErrNone)
                {
                *codecid = configPackage().iSourceDataTypeCode.FourCC();
                }
            }
        }
    return err;
    }

TInt CMMFBackendEngine::GetBitRate(XAuint32* bitrate)
    {
    TInt err(KErrNone);
    TUint br(0);
    if(iAPIBeingUsed == EAudioRecorderUtility)
        {
        if(iRecordState != CMMFBackendEngine::ERecorderNotReady)
            {
            TRAP(err, br = iAudioRecorder->DestinationBitRateL());
            if(err == KErrNone)
                {
                *bitrate = br;
                }
            }
        }
    else if(iAPIBeingUsed == EAudioPlayerUtility)
        {
        if(iMediaPlayerState != XA_PLAYSTATE_PLAYERUNINITIALIZED)
            {
            TInt err =  iAudioPlayer->GetBitRate(br);
            *bitrate = br;
            }
        }
    return err;
    }

TInt CMMFBackendEngine::GetSampleRate(XAmilliHertz* samplerate)
    {
    TInt err(KErrNone);
    TUint sr(0);
    if(iAPIBeingUsed == EAudioRecorderUtility)
        {
        if(iRecordState != CMMFBackendEngine::ERecorderNotReady)
            {
            TRAP(err, sr = iAudioRecorder->DestinationSampleRateL());
            if(err == KErrNone)
                {
                *samplerate = sr*1000;
                }
            }
        }
    else if(iAPIBeingUsed == EAudioPlayerUtility)
        {
        if(iMediaPlayerState != XA_PLAYSTATE_PLAYERUNINITIALIZED)
            {
            TMMFMessageDestinationPckg pckg(KUidInterfaceMMFAudioController);
            TPckgBuf<TMMFAudioConfig> configPackage;
            TInt err =  iAudioPlayer->CustomCommandSync(pckg,
                                                        EMMFAudioControllerGetSourceSampleRate,
                                                        KNullDesC8,
                                                        KNullDesC8,
                                                        configPackage);
            if(err == KErrNone)
                {
                *samplerate = configPackage().iSampleRate*1000;
                }
            }
        }
    return err;
    }

TInt CMMFBackendEngine::GetChannels(XAuint32* channels)
    {
    TInt err(KErrNone);
    TUint ch(0);
    if(iAPIBeingUsed == EAudioRecorderUtility)
        {
        if(iRecordState != CMMFBackendEngine::ERecorderNotReady)
            {
            TRAP(err,ch = iAudioRecorder->DestinationNumberOfChannelsL());
            if(err == KErrNone)
                {
                *channels = ch;
                }
            }
        }
    else if(iAPIBeingUsed == EAudioPlayerUtility)
        {
        if(iMediaPlayerState != XA_PLAYSTATE_PLAYERUNINITIALIZED)
            {
            TMMFMessageDestinationPckg pckg(KUidInterfaceMMFAudioController);
            TPckgBuf<TMMFAudioConfig> configPackage;
            TInt err =  iAudioPlayer->CustomCommandSync(  pckg,
                                                        EMMFAudioControllerGetSourceNumChannels,
                                                        KNullDesC8,
                                                        KNullDesC8,
                                                        configPackage   );
            if(err == KErrNone)
                {
                *channels = configPackage().iChannels;
                }
            }
        }
    return err;
    }

TInt CMMFBackendEngine::SetDestinationBitRate(XAuint32* bitrate)
    {
    TInt err(KErrNone);
    if(iRecordState == CMMFBackendEngine::ERecorderOpen)
        {
        TRAP(err, iAudioRecorder->SetDestinationBitRateL(*bitrate));
        if(err != KErrNone)
            {
            return XA_RESULT_PARAMETER_INVALID;
            }
        }
    return err;
    }

TInt CMMFBackendEngine::SetDestinationSampleRate(XAmilliHertz* samplerate)
    {
    TInt err(KErrNone);
    if(iRecordState == CMMFBackendEngine::ERecorderOpen)
        {
        TRAP(err, iAudioRecorder->SetDestinationSampleRateL(*samplerate/1000));
        if(err != KErrNone)
            {
            return XA_RESULT_PARAMETER_INVALID;
            }
        }
    return err;
    }

TInt CMMFBackendEngine::SetDestinationChannels(XAuint32* channels)
    {
    TInt err(KErrNone);
    if (iRecordState == CMMFBackendEngine::ERecorderOpen)
        {
        TRAP(err,iAudioRecorder->SetDestinationNumberOfChannelsL(*channels));
        if (err != KErrNone)
            {
            return XA_RESULT_PARAMETER_INVALID;
            }
        }
    return err;
    }

/*
XAresult CMMFBackendEngine::SetWindowHandle(void* display_info)
    {
    XADataLocator_NativeDisplay* nativeDisplay;
    XADataSink* videoSink = (XADataSink*)display_info;

    nativeDisplay = (XADataLocator_NativeDisplay*) (videoSink->pLocator);

    m_pWindow = ((RWindow*)(nativeDisplay->hWindow));
    m_pWs =     ((RWsSession*)(nativeDisplay->hDisplay));

    m_bWindowReferencePassed = TRUE;
    return XA_RESULT_SUCCESS;
    }

*/
XAresult CMMFBackendEngine::CreateAndConfigureWindowL()
    {
#ifdef USE_LOCAL_WINDOW_RESOURCES
    // create window for attaching the surface as its background
    //RWsSession ws;
    //TInt err2(KErrNone);
    TInt err2 = m_ws.Connect();
    m_pScr = new(ELeave) CWsScreenDevice(m_ws);
    err2 = m_pScr->Construct();
    CWindowGc* gc = NULL;
    err2 = m_pScr->CreateContext(gc);
    RWindowGroup grp(m_ws);
    err2 = grp.Construct(0xf00f00);
    const TSize KWinSize(320, 240);
    m_pWindow = new (ELeave) RWindow(m_ws);
    err2 = m_pWindow->Construct(grp, 0xfeefee);
    m_pWindow->SetExtent(TPoint(), KWinSize);
    m_pWindow->SetBackgroundColor(TRgb(255,0,0,128));
    //win.SetBackgroundColor(TRgb(0,0,0,0));
    m_pWindow->Activate();
    m_pWindow->Invalidate();
    m_pWindow->BeginRedraw();
    gc->Activate(*m_pWindow);
    m_pWindow->EndRedraw();
    m_ws.Flush();

    //Create MediaClientUitlity for NGA Surfaces
    TInt displayId = m_pScr->GetScreenNumber();

    // Add the display window
    m_cropRegion = TRect(m_pWindow->Size());
    m_clipRect = TRect(m_pWindow->Size());
    m_videoExtent = TRect(m_pWindow->Size());
    m_rotation = EVideoRotationNone;
#endif /* USE_LOCAL_WINDOW_RESOURCES */

    return XA_RESULT_SUCCESS;
    }

XAresult CMMFBackendEngine::SetNativeDisplayInformation(void* display_info)
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    //display_info is of type XADataSink
    //display_info.pLocator is of type XADataLocator_NativeDisplay
    XADataLocator_NativeDisplay* nativeDisplay;
    XADataSink* videoSink = (XADataSink*)display_info;

    if (videoSink)
        {
        nativeDisplay = (XADataLocator_NativeDisplay*) (videoSink->pLocator);
        m_pWindow = ((RWindow*)(nativeDisplay->hWindow));
        m_pWs = ((RWsSession*)(nativeDisplay->hDisplay));
    /*
        m_cropRegion = TRect(m_pWindow->Size());
        m_videoExtent = TRect(m_pWindow->Size());
        m_cropRect = TRect(m_pWindow->Size());
        m_clipRect = TRect(m_pWindow->Size());
        m_cropRegion = TRect(m_pWindow->Size());
    */
        if (m_pWs)
            {
            delete m_pScr;
            m_pScr = NULL;
            TRAPD(err, m_pScr = new CWsScreenDevice(*m_pWs));
            RET_IF_ERR(err, XA_RESULT_MEMORY_FAILURE);
            m_pScr->Construct();
            }
        }
    return retVal;
    }

XAresult CMMFBackendEngine::ResumePlayback()
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    TBool postHeadMovingEvent(EFalse);
    switch (iMediaPlayerState)
        {
        case XA_PLAYSTATE_STOPPED:
        case XA_PLAYSTATE_PAUSED:
            /* If we are already at the end of clip, do nothing
             * check ::MapcPlayComplete for documentation */
            if ((iPlaybackHead < iMediaDuration) &&
                    ((iAPIBeingUsed == EAudioPlayerUtility) ||
                     (iAPIBeingUsed == EVideoPlayerUtility)) )
                {
                if (iAPIBeingUsed == EAudioPlayerUtility)
                    {
                    TAG_TIME_PROFILING_BEGIN;
                    iAudioPlayer->Play();
                    TAG_TIME_PROFILING_END;
                    PRINT_TO_CONSOLE_TIME_DIFF;                    
                    }
                else if (iAPIBeingUsed == EVideoPlayerUtility)
                    {
                    TAG_TIME_PROFILING_BEGIN;
                    //iVideoPlayer->Play( iPlaybackHead, iMediaDuration);
                    iVideoPlayer->Play();
                    TAG_TIME_PROFILING_END;
                    PRINT_TO_CONSOLE_TIME_DIFF;
                    }
                postHeadMovingEvent = ETrue;
                iMediaPlayerState = XA_PLAYSTATE_PLAYING;
                iMMFPlayerState = EPlayerPlaying;
                iMarkerPositionTimer->Start();
                iPlayItfPositionUpdateTimer->Start();
                }
            break;
        case XA_PLAYSTATE_PLAYING:
            break;
        case XA_PLAYSTATE_PLAYERUNINITIALIZED:
        default:
            retVal = XA_RESULT_INTERNAL_ERROR;
            break;
        }

    if (postHeadMovingEvent)
        {
        DoPostEvent(XA_PLAYEVENT_HEADMOVING);
        }
    return retVal;
    }

XAresult CMMFBackendEngine::PausePlayback()
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    switch (iMediaPlayerState)
        {
        case XA_PLAYSTATE_PLAYING:
        case XA_PLAYSTATE_STOPPED:
            if ((iAPIBeingUsed == EAudioPlayerUtility) ||
                (iAPIBeingUsed == EVideoPlayerUtility) )
                {
                TInt pauseOpRes(KErrNone);
                if (iAPIBeingUsed == EAudioPlayerUtility)
                    {
                    TAG_TIME_PROFILING_BEGIN;
                    pauseOpRes = iAudioPlayer->Pause();
                    TAG_TIME_PROFILING_END;
                    PRINT_TO_CONSOLE_TIME_DIFF;
                    }
                else if (iAPIBeingUsed == EVideoPlayerUtility)
                    {
                    TAG_TIME_PROFILING_BEGIN;
                    TRAP(pauseOpRes, iVideoPlayer->PauseL());
                    if (pauseOpRes == KErrNone)
                        {
                        TRAPD(err, iPlaybackHead = iVideoPlayer->PositionL());
                        if (err != KErrNone)
                            {
                            iPlaybackHead = 0;
                            }
                        }
                    TAG_TIME_PROFILING_END;
                    PRINT_TO_CONSOLE_TIME_DIFF;
                    }
                if ( pauseOpRes == KErrNone)
                    {
                    iMediaPlayerState = XA_PLAYSTATE_PAUSED;
                    iMMFPlayerState = EPlayerPaused;
                    iMarkerPositionTimer->Stop();
                    iPlayItfPositionUpdateTimer->Stop();
                    }
                }
            break;
        case XA_PLAYSTATE_PAUSED:
            break;
        case XA_PLAYSTATE_PLAYERUNINITIALIZED:
        default:
            retVal = XA_RESULT_INTERNAL_ERROR;
            break;
        }
    return retVal;
    }

XAresult CMMFBackendEngine::StopPlayback()
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    switch (iMediaPlayerState)
        {
        case XA_PLAYSTATE_PAUSED:
        case XA_PLAYSTATE_PLAYING:
            if ((iAPIBeingUsed == EAudioPlayerUtility) ||
                (iAPIBeingUsed == EVideoPlayerUtility) )
                {
                if (iAPIBeingUsed == EAudioPlayerUtility)
                    {
                    TAG_TIME_PROFILING_BEGIN;
                    iAudioPlayer->Stop();
                    TAG_TIME_PROFILING_END;
                    PRINT_TO_CONSOLE_TIME_DIFF;

                    iMMFPlayerState = EPlayerOpened;
                    }
                else if (iAPIBeingUsed == EVideoPlayerUtility)
                    {
                    TAG_TIME_PROFILING_BEGIN;
                    iVideoPlayer->Stop();
                    TAG_TIME_PROFILING_END;
                    PRINT_TO_CONSOLE_TIME_DIFF;
                    
                    iMMFPlayerState = EPlayerPrepared;
                    }
                iMediaPlayerState = XA_PLAYSTATE_STOPPED;
                iPlaybackHead = 0;
                iMarkerPositionTimer->Stop();
                iPlayItfPositionUpdateTimer->Stop();
                }
            break;
        case XA_PLAYSTATE_STOPPED:
            break;
        case XA_PLAYSTATE_PLAYERUNINITIALIZED:
        default:
            retVal = XA_RESULT_INTERNAL_ERROR;
            break;
        }
    return retVal;
    }
XAresult CMMFBackendEngine::GetPlayState(XAuint32 *pState)
    {
    XAresult retVal(XA_RESULT_INTERNAL_ERROR);
    switch (iMediaPlayerState)
        {
        case XA_PLAYSTATE_STOPPED:
        case XA_PLAYSTATE_PAUSED:
        case XA_PLAYSTATE_PLAYING:
            *pState = iMediaPlayerState;
            retVal = XA_RESULT_SUCCESS;
            break;
        case XA_PLAYSTATE_PLAYERUNINITIALIZED:
        default:
            break;
        }
    return retVal;
    }

XAresult CMMFBackendEngine::GetDuration(XAmillisecond *pMsec)
    {
    XAresult retVal(XA_RESULT_INTERNAL_ERROR);
    /* to convert from microseconds to milliseconds */
    TInt64 divider(1000);
    switch (iMediaPlayerState)
        {
        case XA_PLAYSTATE_STOPPED:
        case XA_PLAYSTATE_PAUSED:
        case XA_PLAYSTATE_PLAYING:
            /* TODO Check if we query from MMF*/
            *pMsec = iMediaDuration.Int64() / divider;
            retVal = XA_RESULT_SUCCESS;
            break;
        case XA_PLAYSTATE_PLAYERUNINITIALIZED:
        default:
            break;
        }
    return retVal;
    }

XAresult CMMFBackendEngine::GetPosition(XAmillisecond *pMsec)
    {
    XAresult retVal(XA_RESULT_INTERNAL_ERROR);
    TInt64 divider(1000);
    TTimeIntervalMicroSeconds pos;
    switch (iMediaPlayerState)
        {
        case XA_PLAYSTATE_STOPPED:
        case XA_PLAYSTATE_PAUSED:
        case XA_PLAYSTATE_PLAYING:
            if (iAPIBeingUsed == EAudioPlayerUtility)
                {
                if (iAudioPlayer->GetPosition(pos) == KErrNone)
                    {
                    *pMsec = pos.Int64() / divider;
                    retVal = XA_RESULT_SUCCESS;
                    }
                }
            else if (iAPIBeingUsed == EVideoPlayerUtility)
                {
                TInt err(KErrNone);
                TRAP(err, pos = iVideoPlayer->PositionL());
                if (err == KErrNone)
                    {
                    *pMsec = pos.Int64() / divider; 
                    retVal = XA_RESULT_SUCCESS;
                    }
                }
            break;
        case XA_PLAYSTATE_PLAYERUNINITIALIZED:
        default:
            break;
        }
    return retVal;
    }

XAresult CMMFBackendEngine::SetPosition(XAmillisecond pMsec)
    {
    XAresult retVal(XA_RESULT_INTERNAL_ERROR);
    TInt64 multiplier(1000);
    TTimeIntervalMicroSeconds pos;
    switch (iMediaPlayerState)
        {
        case XA_PLAYSTATE_STOPPED:
        case XA_PLAYSTATE_PAUSED:
        case XA_PLAYSTATE_PLAYING:
            if(iAPIBeingUsed == EAudioPlayerUtility)
                {
                pos = pMsec * multiplier;
                TAG_TIME_PROFILING_BEGIN;
                iAudioPlayer->SetPosition(pos);
                TAG_TIME_PROFILING_END;
                PRINT_TO_CONSOLE_TIME_DIFF;

                retVal = XA_RESULT_SUCCESS;
                }
            else if (iAPIBeingUsed == EVideoPlayerUtility)
                {
                pos = pMsec * multiplier;
                TAG_TIME_PROFILING_BEGIN;
                TRAPD(err, iVideoPlayer->SetPositionL(pos));
                TAG_TIME_PROFILING_END;
                PRINT_TO_CONSOLE_TIME_DIFF;
                if (err == KErrNone)
                    {
                    retVal = XA_RESULT_SUCCESS;
                    }
                }
            break;
        case XA_PLAYSTATE_PLAYERUNINITIALIZED:
        default:
            break;
        }
    return retVal;
    }

XAresult CMMFBackendEngine::SetRepeats(XAboolean repeat)
    {
    XAresult retVal(XA_RESULT_INTERNAL_ERROR);
    TInt numRepeats(0);
    switch (iMediaPlayerState)
        {
        case XA_PLAYSTATE_STOPPED:
        case XA_PLAYSTATE_PAUSED:
        case XA_PLAYSTATE_PLAYING:
            if(iAPIBeingUsed == EAudioPlayerUtility)
                {
                numRepeats = repeat ? -2 : 0;
                iAudioPlayer->SetRepeats(numRepeats, 0);
                retVal = XA_RESULT_SUCCESS;
                }
            else
                {
                }
            break;
        case XA_PLAYSTATE_PLAYERUNINITIALIZED:
        default:
            break;
        }
    return retVal;
    }

XAresult CMMFBackendEngine::SetPlayWindow(XAmillisecond start, XAmillisecond end)
    {
    XAresult retVal(XA_RESULT_INTERNAL_ERROR);
    TInt64 multiplier(1000);
    TTimeIntervalMicroSeconds startpos(0);
    TTimeIntervalMicroSeconds endpos(0);

    switch (iMediaPlayerState)
        {
        case XA_PLAYSTATE_STOPPED:
        case XA_PLAYSTATE_PAUSED:
        case XA_PLAYSTATE_PLAYING:
            if(iAPIBeingUsed == EAudioPlayerUtility)
                {
                startpos = start * multiplier;
                endpos = end * multiplier;
                retVal = iAudioPlayer->SetPlayWindow(startpos,endpos);
                }
            else
                {
                }
            break;
        case XA_PLAYSTATE_PLAYERUNINITIALIZED:
        default:
            break;
        }
    return retVal;
    }

XAresult CMMFBackendEngine::SetPlayAdaptContext(void * adaptcontext)
    {
    XAresult retVal(XA_RESULT_SUCCESS);

    iAdaptContext = adaptcontext;

    return retVal;
    }

XAresult CMMFBackendEngine::RegisterCallback(xaPlayCallback cbFunction)
    {
    iPlayItfCBFunction = cbFunction;
    return DoHandlePlayItfAttributesChanged();
    }

XAresult CMMFBackendEngine::SetCallbackEventsMask(XAuint32 eventflags)
    {
    iPlayItfEventFlags = eventflags;
    return DoHandlePlayItfAttributesChanged();
    }

XAresult CMMFBackendEngine::SetMarkerPosition(XAmillisecond mSec)
    {
    iMarkerPosition = mSec;
    return DoHandlePlayItfAttributesChanged();
    }

XAresult CMMFBackendEngine::ClearMarkerPosition()
    {
    iMarkerPosition = XA_TIME_UNKNOWN;
    DoHandlePlayItfAttributesChanged();
    return XA_RESULT_SUCCESS;
    }

XAresult CMMFBackendEngine::SetPositionUpdatePeriod(XAmillisecond mSec)
    {
    iPositionUpdatePeriod = mSec;
    DoHandlePlayItfAttributesChanged();
    return XA_RESULT_SUCCESS;
    }

XAresult CMMFBackendEngine::DoHandlePlayItfAttributesChanged()
    {
    XAresult retVal(XA_RESULT_SUCCESS);

    iMarkerPositionTimer->SetCallbackEventMask(iPlayItfEventFlags);
    iMarkerPositionTimer->RegisterCallback(iPlayItfCBFunction);
    iMarkerPositionTimer->SetMarkerPosition(iMarkerPosition);

    iPlayItfPositionUpdateTimer->SetCallbackEventMask(iPlayItfEventFlags);
    iPlayItfPositionUpdateTimer->RegisterCallback(iPlayItfCBFunction);
    iPlayItfPositionUpdateTimer->SetPositionUpdatePeriod(iPositionUpdatePeriod);

    switch (iMediaPlayerState)
        {
        case XA_PLAYSTATE_STOPPED:
        case XA_PLAYSTATE_PAUSED:
            break;
        case XA_PLAYSTATE_PLAYING:
            iMarkerPositionTimer->Start();
            iPlayItfPositionUpdateTimer->Start();
            break;
        case XA_PLAYSTATE_PLAYERUNINITIALIZED:
        default:
            break;
        }
    return retVal;
    }

void CMMFBackendEngine::DoPostEvent(XAuint32 event)
    {
    if ((iPlayItfEventFlags & event) &&
        (iPlayItfCBFunction != NULL))
        {
        XAAdaptEvent xaevent = {XA_PLAYITFEVENTS, event, 0, 0 };
        XAAdaptationBase_SendAdaptEvents((XAAdaptationBaseCtx*)iAdaptContext, &xaevent );
        }
    }

XAresult CMMFBackendEngine::GetNumStreams(XAuint32* numstreams)
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    TInt bitRate(0);
    TInt numS(0);
    if(iAPIBeingUsed == EAudioPlayerUtility)
        {
        numS = 1;
        *numstreams = numS;
        }
    else if (iAPIBeingUsed == EVideoPlayerUtility)
        {
        TRAPD(err, bitRate = iVideoPlayer->VideoBitRateL());
        if(!err && bitRate)
            {
            numS++;
            *numstreams = numS;
            }
        
        bitRate = 0;
        TRAP(err, bitRate = iVideoPlayer->AudioBitRateL());
        if(!err && bitRate)
            {
            numS++;
            *numstreams = numS;
            }
        }
    return retVal;
    }

XAresult CMMFBackendEngine::GetStreamInfo(XAuint32 streamindex, XAuint32* streamtype)
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    if(iAPIBeingUsed == EAudioPlayerUtility)
        {
        *streamtype = XA_DOMAINTYPE_AUDIO;
        }
    else if (iAPIBeingUsed == EVideoPlayerUtility)
        {
        switch(streamindex)
            {
            case 1:
                *streamtype = XA_DOMAINTYPE_VIDEO;
                break;
            case 2:
                *streamtype = XA_DOMAINTYPE_AUDIO;
                break;
            default:
                retVal = XA_RESULT_PARAMETER_INVALID;
                break;
            }
        }
    return retVal;
    }


XAresult CMMFBackendEngine::GetVideoFrameSize(XAuint32* height, XAuint32* width, XAuint32* frameRate)
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    if(iAPIBeingUsed == EVideoPlayerUtility)
        {
        if(iMediaPlayerState != XA_PLAYSTATE_PLAYERUNINITIALIZED)
            {
            TSize size;
            TReal32 framerate(0);
            TRAPD(err, iVideoPlayer->VideoFrameSizeL(size));
            if(!err)
                {
                *height = size.iHeight;
                *width = size.iWidth;
                }
            else
                {
                retVal = err;
                }

            TRAP(err, framerate = iVideoPlayer->VideoFrameRateL());
            if(!err)
                {
                *frameRate = framerate;
                }
            }
        else
            {
            retVal = XA_RESULT_PRECONDITIONS_VIOLATED;
            }
        }
    else
        {
        retVal = XA_RESULT_FEATURE_UNSUPPORTED;
        }
    return retVal;
    }

XAresult CMMFBackendEngine::SetActiveState(XAuint32 streamindex, XAboolean active)
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    TInt err(KErrNone);
    if(iAPIBeingUsed == EAudioPlayerUtility)
        {
        retVal = XA_RESULT_FEATURE_UNSUPPORTED;
        }
    else if (iAPIBeingUsed == EVideoPlayerUtility)
        {
        switch(streamindex)
            {
            case 1:
                TRAP(err, iVideoPlayer->SetVideoEnabledL(active));
                retVal = err;
                break;
            case 2:
                TRAP(err, iVideoPlayer->SetAudioEnabledL(active));
                retVal = err;
                break;
            default:
                retVal = XA_RESULT_PARAMETER_INVALID;
                break;
            }
        }
    return retVal;
    }

TInt CMMFBackendEngine::InitializeURIForMMFUtil(char *uri)
    {
    /* Initializes and save uri param into iUri structure */
    TInt err(KErrNone);
    TInt uriLen;
    
    if (!uri)
        return KErrArgument;

    if (iUri)
        {
        delete iUri;
        iUri = NULL;
        }
    
    uriLen = strlen(uri);
    TPtr8 uriParam((TUint8*)uri, uriLen, uriLen);
    
    TRAP(err, iUri = HBufC::NewL(uriLen));
    if (err != KErrNone)
        return err;

    iUriPtr.Set(iUri->Des());
    iUriPtr.Copy(uriParam); /* Copy data*/
    //iUriPtr.LowerCase();

    /* For file scheme convert from file:///c:/folder/file.ext
     * format to c:\\folder\\file.ext using TUriParser. */
    _LIT(KFileScheme,"file:///");
    if (iUriPtr.Find(KFileScheme) >= 0)
        {
        iUriType = ELocal;
        TPtr tmp(const_cast<TUint16 *>(iUriPtr.Ptr()) + KFileScheme().Length(),
                iUriPtr.Length(),
                iUriPtr.Length());
        /* Convert from c:/folder/file.ext format to
         * c:\\folder\\file.ext using TUriParser.
         * TUriParser8 accepts uri in format file:///c/folder/file.ext,
         * so get rid of ':' after drive letter (if any) */
        TInt pos = tmp.Find(_L(":"));
        if (pos != KErrNotFound)
            {
            iUriPtr.Delete(KFileScheme().Length() + pos, 1);
            }

        TUriParser16 uriParser;
        err = uriParser.Parse(iUriPtr);
        if (err != KErrNone)
            return err;

        HBufC* file = NULL;
        TRAP(err, file = uriParser.GetFileNameL());
        if (err != KErrNone)
            return err;

        iUriPtr.Copy(file->Des());
        delete file;
        file = NULL;

        }
    else
        {
        iUriType = EStreaming;
        }
    return err;
    }


XAresult CMMFBackendEngine::SetVolume(XAuint32 volume)
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    TInt err(KErrNone);
    if(iAPIBeingUsed == EAudioPlayerUtility)
        {
        retVal = iAudioPlayer->SetVolume(volume);
        }
    else if (iAPIBeingUsed == EVideoPlayerUtility)
        {
        TRAP(err, iVideoPlayer->SetVolumeL(volume));
        retVal = err;
        }
    else if(iAPIBeingUsed == EAudioRecorderUtility)
        {
        retVal = iAudioRecorder->SetVolume(volume);
        }
    return retVal;    
    }

XAresult CMMFBackendEngine::GetMaxVolume(XAuint32* maxvolume)
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    if(iAPIBeingUsed == EAudioPlayerUtility)
        {
        *maxvolume = iAudioPlayer->MaxVolume();
        }
    else if (iAPIBeingUsed == EVideoPlayerUtility)
        {
        *maxvolume = iVideoPlayer->MaxVolume();
        }
    else if(iAPIBeingUsed == EAudioRecorderUtility)
        {
        *maxvolume = iAudioRecorder->MaxVolume();
        }
    return retVal;     
    }

XAresult CMMFBackendEngine::GetVolume(XAuint32* volume)
    {
    XAresult retVal(XA_RESULT_SUCCESS);
    TInt mmfvolume(0);
    if(iAPIBeingUsed == EAudioPlayerUtility)
        {
        retVal = iAudioPlayer->GetVolume(mmfvolume);
        if(retVal == XA_RESULT_SUCCESS)
            {
            *volume = mmfvolume;
            }
        }
    else if (iAPIBeingUsed == EVideoPlayerUtility)
        {
        *volume = iVideoPlayer->Volume();
        }
    else if(iAPIBeingUsed == EAudioRecorderUtility)
        {
        retVal = iAudioRecorder->GetVolume(mmfvolume);
        if(retVal == XA_RESULT_SUCCESS)
            {
            *volume = mmfvolume;
            }
        }
    return retVal;     
    }

extern "C" {

    int mmf_backend_engine_init(void** engine)
    {
        TRAPD(err, *engine = CMMFBackendEngine::NewL());
        return err;
    }

    void mmf_backend_engine_deinit(void* engine)
    {
        delete ((CMMFBackendEngine*)engine);
    }

    int mmf_set_recorder_uri(void* context, char* uri, XAuint32 format)
    {
        return ((CMMFBackendEngine*)(context))->SetFileName(uri,format,CMMFBackendEngine::ERecord);
    }

    int mmf_set_adapt_context(void* context, void* adaptcontext)
    {
        return ((CMMFBackendEngine*)(context))->SetAdaptContext(adaptcontext);
    }

    void mmf_close(void* context)
    {
        ((CMMFBackendEngine*)context)->Close();
    }

    int mmf_start_recording(void* context)
    {
        return ((CMMFBackendEngine*)(context))->SetRecorderState(CMMFBackendEngine::ERecorderRecording,FALSE);
    }

    int mmf_stop_recording(void* context, XAboolean stopCalled )
    {
        return ((CMMFBackendEngine*)(context))->SetRecorderState(CMMFBackendEngine::ERecorderOpen, stopCalled);
    }

    int mmf_get_record_position(void* context, XAuint64* position)
    {
        return ((CMMFBackendEngine*)(context))->GetRecordPosition(position);
    }

    int mmf_set_record_position_update_period(void* context, XAmillisecond msec)
    {
        return ((CMMFBackendEngine*)(context))->SetPositionUpdatePerioed(msec);
    }

    int mmf_get_codec_id(void* context, XAuint32* encoderId)
    {
        return ((CMMFBackendEngine*)(context))->GetCodecId(encoderId);
    }

    int mmf_get_channels(void* context, XAuint32* channelsIn)
    {
        return ((CMMFBackendEngine*)(context))->GetChannels(channelsIn);
    }

    int mmf_get_samplerate(void* context, XAmilliHertz* sampleRate)
    {
        return ((CMMFBackendEngine*)(context))->GetSampleRate(sampleRate);
    }

    int mmf_get_bitrate(void* context, XAuint32* bitRate)
    {
        return ((CMMFBackendEngine*)(context))->GetBitRate(bitRate);
    }

    int mmf_set_destination_channels(void* context, XAuint32* channelsIn)
    {
        return ((CMMFBackendEngine*)(context))->SetDestinationChannels(channelsIn);
    }

    int mmf_set_destination_samplerate(void* context, XAmilliHertz* sampleRate)
    {
        return ((CMMFBackendEngine*)(context))->SetDestinationSampleRate(sampleRate);
    }

    int mmf_set_destination_bitrate(void* context, XAuint32* bitRate)
    {
        return ((CMMFBackendEngine*)(context))->SetDestinationBitRate(bitRate);
    }

    XAresult mmf_set_play_adapt_context(void * context, void * adaptcontext)
    {
        return ((CMMFBackendEngine *)(context))->SetPlayAdaptContext(adaptcontext);
    }

    XAresult mmf_set_player_uri(void * context, char * uri, XAuint32 format)
    {
        return ((CMMFBackendEngine *)(context))->SetFileName(uri,format,CMMFBackendEngine::EPlay);
    }

/*
    XAresult mmf_set_window_handle(void * context, void *  display_info)
    {
        return ((CMMFBackendEngine *)(context))->SetWindowHandle(display_info);
    }

*/
    XAresult mmf_setup_native_display(void * context, void * display_info)
    {
        return ((CMMFBackendEngine *)(context))->SetNativeDisplayInformation(display_info);
    }

    XAresult mmf_playitf_resume_playback(void * context)
    {
        return ((CMMFBackendEngine *)(context))->ResumePlayback();
    }

    XAresult mmf_playitf_pause_playback(void * context)
    {
        return ((CMMFBackendEngine *)(context))->PausePlayback();
    }

    XAresult mmf_playitf_stop_playback(void * context)
    {
        return ((CMMFBackendEngine *)(context))->StopPlayback();
    }

    XAresult mmf_playitf_get_play_state(void * context, XAuint32 * pState)
    {
        return ((CMMFBackendEngine *)(context))->GetPlayState(pState);
    }

    XAresult mmf_playitf_get_duration(void * context, XAmillisecond * pMsec)
    {
        return ((CMMFBackendEngine *)(context))->GetDuration(pMsec);
    }

    XAresult mmf_playitf_get_position(void * context, XAmillisecond * pMsec)
    {
        return ((CMMFBackendEngine *)(context))->GetPosition(pMsec);
    }

    XAresult mmf_playitf_register_callback(void * context, xaPlayCallback callback)
    {
        return ((CMMFBackendEngine *)(context))->RegisterCallback(callback);
    }

    XAresult mmf_playitf_set_callback_events_mask(void * context, XAuint32 eventflags)
    {
        return ((CMMFBackendEngine *)(context))->SetCallbackEventsMask(eventflags);
    }

    XAresult mmf_playitf_set_marker_position(void * context, XAmillisecond mSec)
    {
        return ((CMMFBackendEngine *)(context))->SetMarkerPosition(mSec);
    }

    XAresult mmf_playitf_clear_marker_position(void * context)
    {
        return ((CMMFBackendEngine *)(context))->ClearMarkerPosition();

    }

    XAresult mmf_playitf_set_position_update_period(void * context, XAmillisecond mSec)
    {
        return ((CMMFBackendEngine *)(context))->SetPositionUpdatePeriod(mSec);
    }

    XAresult mmf_seekitf_set_position(void * context, XAmillisecond pMsec)
    {
        return ((CMMFBackendEngine *)(context))->SetPosition(pMsec);
    }

    XAresult mmf_seekitf_set_playwindow(void * context, XAmillisecond start, XAmillisecond end)
    {
        return ((CMMFBackendEngine *)(context))->SetPlayWindow(start,end);
    }

    XAresult mmf_seekitf_set_repeats(void * context, XAboolean repeat)
    {
        return ((CMMFBackendEngine *)(context))->SetRepeats(repeat);
    }

    XAresult mmf_streaminformationitf_get_streaminfo(void * context, XAuint32 streamindex,
                                                                    XAuint32* streamtype)
    {
        return ((CMMFBackendEngine *)(context))->GetStreamInfo(streamindex, streamtype);
    }

    XAresult mmf_streaminformationitf_get_numstreams(void * context, XAuint32* numstreams)
    {
        return ((CMMFBackendEngine *)(context))->GetNumStreams(numstreams);
    }

    XAresult mmf_streaminformationitf_get_videoframesize(void * context, XAuint32* height,
                                                        XAuint32* width, XAuint32* frameRate)
    {
        return ((CMMFBackendEngine *)(context))->GetVideoFrameSize(height,width,frameRate);
    }

    XAresult mmf_streaminformationitf_set_activestream(void * context, XAuint32 streamindex,
                                                                    XAboolean active)
    {
        return ((CMMFBackendEngine *)(context))->SetActiveState(streamindex, active);
    }
    
    XAresult mmf_volumeitf_set_volume(void * context, XAuint32 volume)
    {
        return ((CMMFBackendEngine *)(context))->SetVolume(volume);
    }    

    XAresult mmf_volumeitf_get_maxvolume(void * context, XAuint32* volume)
    {
        return ((CMMFBackendEngine *)(context))->GetMaxVolume(volume);
    }    
    
    XAresult mmf_volumeitf_get_volume(void * context, XAuint32* volume)
    {
        return ((CMMFBackendEngine *)(context))->GetVolume(volume);
    }     
}