/*

* 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 <mmf/common/mmferrors.h>

#include <NokiaAudioPreference.h>

#include <coedef.h>

#include <QStringList>

#include <hxmetadatakeys.h>

#include "irqmetadata.h"

#include "irqenums.h"

#include "irqmmfadapter.h"

//Constants

const TUid KUidController        = { 0x101F8514 }; // Helix Video controller UID

const TInt KConnectingTime       = 30*1000000;     // 30 seconds

const TInt KVolumeMinPercentage  = 0;              // Minimum volume percentage

const TInt KVolumeMaxPercentage  = 100;            // Maximum volume percentage

const TInt KLoadingCompletePercentage = 100;       // Loading Complete percentage

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::IRQMMFAdapter

//  Constructor

//  Initialize viriants

// ---------------------------------------------------------------------------

//

IRQMMFAdapter::IRQMMFAdapter() :

    iVideoPlayer(NULL)

    ,iQMetaData(NULL)

    ,iPrepareTimer(NULL)

{

    iPlayState = EStopped;

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::~IRQMMFAdapter

//  Destructor

//  Clean up resources

// ---------------------------------------------------------------------------

//

IRQMMFAdapter::~IRQMMFAdapter()

{

    destroyPlayer();

    delete iQMetaData;

    iQMetaData = NULL;

    if (iPrepareTimer)

    {

        if (iPrepareTimer->IsActive())

        {

            iPrepareTimer->Cancel();

        }

        delete iPrepareTimer;

        iPrepareTimer = NULL;

    }

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::playStation

//  IRQPlayerAdapterInterface method

//  Play url via specific access point id

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::playStation(const QString &aUrl, int aApId)

{

    TRAPD(error, playL(aUrl, aApId));

    if (NULL == iQMetaData)

    {

        emit errorOccured(EIRQErrorOutOfMemory);

    }

    if (KErrNone != error)

    {

        emit errorOccured(EIRQPlayerErrorGeneral);

    }

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::playL

//  Play url via specific access point id

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::playL(const QString &aUrl, int aApId)

{

    // Save stream Url

    if (NULL == iQMetaData)

    {

        iQMetaData = new (ELeave) IRQMetaData();

    }

    else

    {

        // Clear MetaData

        iQMetaData->clear();

    }

    iQMetaData->setStreamUrl(aUrl);

    // Transfer url from QString to TDesC

    TPtrC stationUrl(reinterpret_cast<const TUint16*>(aUrl.utf16()));

    // Create player if it doesn't exist

    if (NULL == iVideoPlayer)

    {

        createPlayerL();

    }

    // If the status is not stopped, clean up last playback resources

    stop();

    // Open url

    iVideoPlayer->OpenUrlL(stationUrl, aApId, KNullDesC8, KUidController);

    iPlayState = EOpenning;

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::stop

//  IRQPlayerAdapterInterface method

//  Stop playback, call Close() to clean up allocated resources

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::stop()

{

    if (iVideoPlayer && EStopped != iPlayState)

    {

        if (iPrepareTimer)

        {

            if (iPrepareTimer->IsActive())

            {

                iPrepareTimer->Cancel();

            }

        }

        iVideoPlayer->Stop();

        iVideoPlayer->Close();

        iPlayState = EStopped;

    }

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::setVolume

//  IRQPlayerAdapterInterface method

//  Set volume to player

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::setVolume(int aVolume)

{

    if (iVideoPlayer && iPlayState > EOpenning)

    {

        // aVolume is a percentage

        if (aVolume < KVolumeMinPercentage)

        {

            aVolume = KVolumeMinPercentage;

        }

        else if (aVolume > KVolumeMaxPercentage)

        {

            aVolume = KVolumeMaxPercentage;

        }

        int volume = aVolume*iVideoPlayer->MaxVolume()/KVolumeMaxPercentage;

        TRAPD(error, iVideoPlayer->SetVolumeL(volume));

        if (KErrNone != error)

        {

            emit errorOccured(EIRQPlayerErrorGeneral);

        }

    }

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::getVolume

//  IRQPlayerAdapterInterface method

//  Get current volume value from player

// ---------------------------------------------------------------------------

//

int IRQMMFAdapter::getVolume()

{

    int volume = KVolumeMinPercentage;

    if (iVideoPlayer && iPlayState > EOpenning)

    {

        // Return a percentage

        volume = iVideoPlayer->Volume()*KVolumeMaxPercentage/iVideoPlayer->MaxVolume();

    }

    return volume;

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::getPlayerInstance

//  IRQPlayerAdapterInterface method

//  Get audio player instance

// ---------------------------------------------------------------------------

//

void* IRQMMFAdapter::getPlayerInstance()

{

    return (void*)iVideoPlayer;

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::MvpuoOpenComplete

//  Callback function, MVideoPlayerUtilityObserver method

//  Called after calling CVideoPlayerUtility::OpenUrlL()

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::MvpuoOpenComplete(TInt aError)

{

    if (KErrNone == aError)

    {

        if (NULL == iPrepareTimer)

        {

            TRAPD(error, iPrepareTimer = CPeriodic::NewL(CPeriodic::EPriorityStandard));

            if (KErrNone != error)

            {

                emit errorOccured(EIRQErrorOutOfMemory);

                return;

             }

        }

        // Prepare to playback

        iVideoPlayer->Prepare();

        iPlayState = EConnecting;

        // Start a timer to check preparation status

        if (iPrepareTimer->IsActive())

        {

            // Cancel the previous request if pending

            iPrepareTimer->Cancel();

        }

        TTimeIntervalMicroSeconds32 interval(KConnectingTime);

        iPrepareTimer->Start(interval,interval,

                             TCallBack(IRQMMFAdapter::isPrepareCompleted,this));

    }

    else

    {

        emit errorOccured(EIRQPlayerErrorConnectingFailed);

    }

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::MvpuoPrepareComplete

//  Callback function, MVideoPlayerUtilityObserver method

//  Called after calling CVideoPlayerUtility::Prepare. Since some audio types

//  are not explicitly(hxmmffourccmap.cpp), they are not retrieved here.

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::MvpuoPrepareComplete(TInt aError)

{

    // Cancel the previous request if pending

    if (iPrepareTimer->IsActive())

    {

        iPrepareTimer->Cancel();

    }

    if (KErrNone == aError)

    {

        // Get volume from preset

        int volumeval = KVolumeMaxPercentage/2;

        emit volumeExpected(volumeval);

        setVolume(volumeval);

        // Save bit rate

        int bitrate = 0;

        TRAPD(error, bitrate = iVideoPlayer->AudioBitRateL());

        if (KErrNone == error)

        {

            iQMetaData->setBitrate(bitrate/1000);

        }

        // Send signal ConnectionEstablished

        emit connectionEstablished(iQMetaData->getBitrate());

        // Set specific event to get meta data from player

        setMetadataEventConfig();

        // Start playback

        iVideoPlayer->Play();

        iPlayState = EBuffering;

    }

    else if (KErrServerBusy == aError)

    {

        emit errorOccured(EIRQPlayerErrorServerFull);

    }

    else

    {

        emit errorOccured(EIRQPlayerErrorConnectingFailed);

    }

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::MvpuoPlayComplete

//  Callback function, MVideoPlayerUtilityObserver method

//  Notification that video playback has completed. This is not called if play

//  back is explicitly stopped by calling Stop. Moreover, radio station stream

//  has no end. So it should be NEVER called.

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::MvpuoPlayComplete(TInt aError)

{

    if (KErrNone != aError)

    {

        emit errorOccured(EIRQPlayerErrorGeneral);

    }

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::MvpuoEvent

//  Callback function, MVideoPlayerUtilityObserver method

//  Handle events from player.

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::MvpuoEvent(TMMFEvent const & aEvent)

{

    if (KMMFEventCategoryVideoPlayerGeneralError == aEvent.iEventType)

    {

        switch (aEvent.iErrorCode)

        {

            case KErrHardwareNotAvailable:

            case KErrMMAudioDevice:

                // Higher priority application has taken over the

                // audio device. --> Do stop.

                emit errorOccured(EIRQPlayerErrorAudioDeviceLost);

                break;

            case KErrDisconnected:

                emit errorOccured(EIRQPlayerErrorConnectionLost);

                break;

            case KErrTimedOut:    

                emit errorOccured(EIRQPlayerErrorTimeOut);

                break;

            case KErrServerBusy:    

                emit errorOccured(EIRQPlayerErrorServerFull);

                break;                                            

            default:

                emit errorOccured(EIRQPlayerErrorGeneral);			

                break;

        }

    }

    else if (KMMFRefreshMetaData == aEvent.iEventType)

    {

        // Get refreshed meta data

        TRAPD(error, getRefreshedMetaDataL(aEvent.iErrorCode));

        if (KErrNone != error)

        {

            emit errorOccured(EIRQPlayerErrorGeneral);

        }

    }

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::MvpuoFrameReady

//  Callback function, MVideoPlayerUtilityObserver method

//  For video stream only, never called

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::MvpuoFrameReady(CFbsBitmap& aFrame,TInt aError)

{

    Q_UNUSED(aFrame);

    Q_UNUSED(aError);

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::MvloLoadingStarted

//  Callback function, MVideoLoadingObserver method

//  Start buffering after CVideoPlayerUtility::Play() is called

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::MvloLoadingStarted()

{

    // Get buffering progress and send it to application

    int percentageComplete = 0;

    TRAPD(error, iVideoPlayer->GetVideoLoadingProgressL(percentageComplete));

    if (KErrNone == error)

    {

        // Send signal to UpdateProgress

        emit percentageBuffered(percentageComplete);

    }

    else

    {

        emit errorOccured(EIRQPlayerErrorGeneral);

    }

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::MvloLoadingComplete

//  Callback function, MVideoLoadingObserver method

//  Send 100% buffering status out

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::MvloLoadingComplete()

{

    iPlayState = EPlaying;

    // Send signal to update progress, 100%

    emit percentageBuffered(KLoadingCompletePercentage);

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::getRefreshedMetaData

//  Get refreshed meta data according to the index

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::getRefreshedMetaDataL(TInt index)

{

    if (iQMetaData)

    {

        CMMFMetaDataEntry* pMetadataEntry = iVideoPlayer->MetaDataEntryL(index);

        QString entryName = QString::fromUtf16(pMetadataEntry->Name().Ptr(),

                                               pMetadataEntry->Name().Length());

        // If the meta data is the same as last, we don't need to report it.

        if (iLastArtistSongName == entryName)

        {

            return;

        }

        else

        {

            iLastArtistSongName = entryName;

        }

        // Artist, song name

        if (entryName == HXAuthor)

        {

            QString songArtist = QString::fromUtf16(pMetadataEntry->Value().Ptr(),

                                                    pMetadataEntry->Value().Length());

            iQMetaData->setArtistSongName(songArtist);

            // Send signal HandleMetaDataReceived

            emit metaDataReceived(*iQMetaData);

        }

    }

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::createPlayer

//  Create player instance

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::createPlayerL()

{

    // Create player instance

    iVideoPlayer = CVideoPlayerUtility2::NewL(*this,KAudioPriorityAudioPlaybackStreaming ,

                                             (TMdaPriorityPreference)KAudioPrefRealOneStreaming);

    // Register loading notification

    iVideoPlayer->RegisterForVideoLoadingNotification(*this);

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::destroyPlayer

//  Destroy player

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::destroyPlayer()

{

    delete iVideoPlayer;

    iVideoPlayer = NULL;

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::SetMetadataEventConfig

//  Enable meta data event

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::setMetadataEventConfig()

{

    TMMFMessageDestinationPckg  destinationPckg(KUidInterfaceMMFControllerMetadataEventMsg);

    TPckgBuf<TBool>             metadataEventPckg(EMMFEnableMetadataEvent);

    //  Enable meta data event.

    iVideoPlayer->CustomCommandSync(destinationPckg,

                                    EMMFSetMetadataEventConfig,

                                    metadataEventPckg,

                                    KNullDesC8);

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::isPrepareCompleted

//  Static function for periodic call

// ---------------------------------------------------------------------------

//

TInt IRQMMFAdapter::isPrepareCompleted(TAny* aPtr)

{

    IRQMMFAdapter* self = static_cast<IRQMMFAdapter*>(aPtr);

    if (self)

    {

        self->checkPrepare();

    }

    return KErrNone;

}

// ---------------------------------------------------------------------------

//  IRQMMFAdapter::checkPrepare

//  Check if the preparation is complete

// ---------------------------------------------------------------------------

//

void IRQMMFAdapter::checkPrepare()

{

    if (iPrepareTimer->IsActive())

    {

        // Cancel the previous request if pending

        iPrepareTimer->Cancel();

    }

    if (EConnecting == iPlayState)

    {

        emit errorOccured(EIRQPlayerErrorConnectingFailed);

        stop();

    }

}