/*

* Copyright (c) 2006-2007 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:      Implementation file of CUpnpResResolver class. 

*                CUpnpResResolver is a class used for resolving res field 

*                attributes for a given file.

*

*/

// system includes

#include <f32file.h> // RFile

#include <apgcli.h> // RApaLsSession

#include <upnpdlnaprotocolinfo.h> // CUpnpDlnaProtocolInfo

#include <imageconversion.h> // CImageDecoder

#include <caf/caftypes.h> // ContentAccess

#include <3gplibrary/mp4lib.h> // MP4ParseRequestAudioDescription

#include <escapeutils.h> // EscapeUtils::ConvertFromUnicodeToUtf8L

// user includes

#include "upnpresresolver.h"

#include "upnpdlnaprofiler.h"

#include "upnpresparameters.h"

_LIT( KComponentLogfile, "dlnaprofiler.txt");

#include "upnplog.h"

// constants

_LIT8( KHttpGet8, "http-get" );

_LIT8( KStar8, "*" );

const TInt KMicrosecondsInSecond = 1000000;

const TInt KMilliSecondsInSecond = 1000;

// ======== LOCAL FUNCTIONS ========

// NONE

// ======== MEMBER FUNCTIONS ========

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

// CUpnpResResolver C++ constructor

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

//

CUpnpResResolver::CUpnpResResolver() : iDuration(0)

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver constructor" );

    }

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

// CUpnpResResolver::ConstructL

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

//

void CUpnpResResolver::ConstructL()

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::ConstructL" );

    }

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

// CUpnpResResolver::NewL

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

//

EXPORT_C CUpnpResResolver* CUpnpResResolver::NewL()

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::NewL" );

    CUpnpResResolver* self = CUpnpResResolver::NewLC();

    CleanupStack::Pop( self );

    return self;

    }

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

// CUpnpResResolver::NewLC

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

//

EXPORT_C CUpnpResResolver* CUpnpResResolver::NewLC()

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::NewLC" );

    CUpnpResResolver* self = new( ELeave ) CUpnpResResolver;

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

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

// CUpnpResResolver destructor

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

//

CUpnpResResolver::~CUpnpResResolver()

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver destructor" );

    }

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

// CUpnpResResolver::GetResParametersL

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

//

EXPORT_C CUpnpResParameters* CUpnpResResolver::GetResParametersL( 

                                                    const TDesC& aFilename ) 

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::GetResParametersL" );

    // check that aFileName is reasonable

    if ( aFilename.Length() <= 0 ) 

        {

        User::Leave( KErrArgument );

        }

    // Create object that will be returned.

    CUpnpResParameters* retval = CUpnpResParameters::NewLC();

    // try to open file specified by aFileName

    RFs fsSession;

    User::LeaveIfError( fsSession.Connect() ); // connect session

    CleanupClosePushL( fsSession );

    // without calling ShareProtected() RApaLsSession::RecognizeData 

    // does not work (leaves with KErrBadHandle).

    fsSession.ShareProtected();

    RFile file;

    User::LeaveIfError( file.Open( fsSession, 

                                   aFilename, 

                                   EFileShareReadersOrWriters|EFileRead ) );

    CleanupClosePushL( file );

    // Obtain mimetype of the file

    HBufC8* mimetype = GetMimetypeL( file );

    CleanupStack::PushL( mimetype );

    retval->SetMimetypeL( *mimetype );

    // Obtain file size

    TInt filesize = GetFileSizeL( file );

    retval->SetFileSize( filesize );

    // Obtain duration for video&audio files and resolution for images.

    TSize imageResolution( KErrNotFound, KErrNotFound );

    if ( mimetype->Left( KMimeStartLength ).Compare( KVideo() ) == 0 ) 

        {

        GetVideoDurationL( file );

        retval->SetDurationInSeconds( iDuration.Int64() );

        }

    else if ( mimetype->Left( KMimeStartLength ).Compare( KAudio() ) == 0 ) 

        {

        GetAudioDurationL( aFilename );

        retval->SetDurationInSeconds( 

                                iDuration.Int64() / KMicrosecondsInSecond );

        }

    else if ( mimetype->Left( KMimeStartLength ).Compare( KImage() ) == 0 ) 

        {

        TRAPD( err, imageResolution = GetImageResolutionL( file, 

                                                           *mimetype ) );

        if ( !err ) 

            {

            retval->SetResolution( imageResolution );

            }

        }

    // Construct CUpnpDlnaProtocolInfo object.

    CUpnpDlnaProtocolInfo* protocolInfo = CUpnpDlnaProtocolInfo::NewL(); 

    CleanupStack::PushL( protocolInfo ); 

    protocolInfo->SetFirstFieldL( KHttpGet8() ); 

    protocolInfo->SetSecondFieldL( KStar8() ); 

    protocolInfo->SetThirdFieldL( *mimetype ); 

    // Obtain DLNA Profile ID

    CUpnpDlnaProfiler* profiler = CUpnpDlnaProfiler::NewLC();

    HBufC* PnParameter = NULL;

    TRAPD( profileErr, 

           PnParameter = profiler->ProfileForFileL( aFilename,

                                                    file,

                                                    *retval ) );

    CleanupStack::PopAndDestroy( profiler );

    if ( PnParameter && !profileErr ) 

        {

        // Set DLNA Profile name (PN parameter)

        CleanupStack::PushL( PnParameter );

        HBufC8* profileName8bit = 

            EscapeUtils::ConvertFromUnicodeToUtf8L( *PnParameter );

        CleanupStack::PushL( profileName8bit );

        protocolInfo->SetPnParameterL( *profileName8bit );

        CleanupStack::PopAndDestroy( profileName8bit );

        // OP parameter is always the same in our CDS.

        protocolInfo->SetOpParameterL( 

                                   UpnpDlnaProtocolInfo::KDEFAULT_DLNA_OP ); 

        // Set Flags according to file type.

        if ( mimetype->Left( KMimeStartLength ).Compare( KVideo() ) == 0 ) 

            {

            protocolInfo->SetFlagsParameterL( 

                           UpnpDlnaProtocolInfo::KDEFAULT_DLNA_FLAGS_AV );

            }

        else if 

           ( mimetype->Left( KMimeStartLength ).Compare( KAudio() ) == 0 ) 

            {

            protocolInfo->SetFlagsParameterL( 

                           UpnpDlnaProtocolInfo::KDEFAULT_DLNA_FLAGS_AUDIO );

            }

        else if 

           ( mimetype->Left( KMimeStartLength ).Compare( KImage() ) == 0 ) 

            {

            protocolInfo->SetFlagsParameterL( 

                           UpnpDlnaProtocolInfo::KDEFAULT_DLNA_FLAGS_IMAGE );

            }

        CleanupStack::PopAndDestroy( PnParameter );

        }

    retval->SetProtocolInfoL( protocolInfo->ProtocolInfoL() );

    // clean up

    CleanupStack::PopAndDestroy( protocolInfo );

    CleanupStack::PopAndDestroy( mimetype );

    CleanupStack::PopAndDestroy( &file );

    CleanupStack::PopAndDestroy( &fsSession );

    CleanupStack::Pop( retval );

    return retval;

    }

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

// CUpnpResResolver::GetMimetypeL

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

//

HBufC8* CUpnpResResolver::GetMimetypeL( RFile& aFile ) 

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::GetMimetypeL" );

    HBufC8* retval = NULL;

    // Create an AppArc server session for mime type recognition 

    RApaLsSession sess;

    User::LeaveIfError( sess.Connect() );

    CleanupClosePushL( sess );

    // Try to get mime type from AppArc server

    TDataRecognitionResult mimeResult;

    User::LeaveIfError( sess.RecognizeData( aFile, mimeResult ) );

    // close session handle

    CleanupStack::PopAndDestroy( &sess );

    // Data recognition done. Check results.

    retval = mimeResult.iDataType.Des8().AllocL();

    return retval;

    }

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

// CUpnpResResolver::GetVideoDurationL

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

//

void CUpnpResResolver::GetVideoDurationL( RFile& aFile )  

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::GetVideoDurationL" );

    mp4_u32 videolength = 0;  

    mp4_double framerate = 0; 

    mp4_u32 videotype = 0;    

    mp4_u32 videowidth = 0;   

    mp4_u32 videoheight = 0;  

    mp4_u32 timescale = 0; 

    MP4Handle myMp4Handle;

    // try open mp4 file handle

    MP4Err openerr = MP4ParseOpenFileHandle( &myMp4Handle, &aFile );

    switch ( openerr )

        {

        case MP4_OK :

        	{

        	// obtain necessary information from file

            MP4Err requesterr = MP4ParseRequestVideoDescription( 

                                                myMp4Handle, 

                                                &videolength,   

                                                &framerate,     

                                                &videotype,     

                                                &videowidth,    

                                                &videoheight,   

                                                &timescale );

            // close mp4 file handle

            MP4Err closeerr = MP4ParseClose( myMp4Handle );

            if ( closeerr || requesterr ) 

                {

                User::Leave( KErrGeneral );

                }

        	}

        	break;

        case MP4_ERROR :

        	{

        	User::Leave( KErrGeneral );

        	}

        	break;

        case MP4_OUT_OF_MEMORY :

        	{

        	User::Leave( KErrNoMemory );

        	}

        	break;

        case MP4_FILE_ERROR :

        	{

        	User::Leave( KErrAccessDenied );

        	}

        	break;

        default :

            User::Leave( KErrGeneral );

            break;

        }

    // videolength in milliseconds

    iDuration = videolength/KMilliSecondsInSecond;

    }

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

// CUpnpResResolver::GetAudioDurationL

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

//

void CUpnpResResolver::GetAudioDurationL( const TDesC& aFilename ) 

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::GetAudioDurationL" );

    // create audioplayer if it does not exist

    if ( !iAudioplayer ) 

        {

        iAudioplayer = CMdaAudioPlayerUtility::NewL( *this );

        }

    // Create iWait if it does not exist. Create it here rather than after 

    // OpenL-call so that there will be no problems if somehow OpenFileL 

    // calls MapcInitComplete-callback before iWait is created and started.

    if ( !iWait ) 

        {

        iWait = new( ELeave ) CActiveSchedulerWait;

        }

    // Open file specified in aFilename. This is an asynchronic operation. 

    // Calls MapcInitComplete callback after completed.

    iAudioplayer->OpenFileL( aFilename );

    // start CActiveSchedulerWait which is completed in MapcInitComplete

    iWait->Start();

    // clean up

    delete iAudioplayer;

    iAudioplayer = NULL;

    delete iWait;

    iWait = NULL;

    }

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

// CUpnpResResolver::GetFileSizeL

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

//

TInt CUpnpResResolver::GetFileSizeL( RFile& aFile ) 

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::GetFileSizeL" );

    TInt retval = KErrNone;

    User::LeaveIfError( aFile.Size( retval ) );

    return retval;

    }

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

// CUpnpResResolver::GetImageResolutionL

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

//  

TSize CUpnpResResolver::GetImageResolutionL( RFile& aFile, 

                                             const TDesC8& aMimetype )

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::GetImageResolutionL" );

    CImageDecoder* imageDecoder = NULL;

    TRAPD( createError, imageDecoder = CImageDecoder::FileNewL(

                                                    aFile,

                                                    aMimetype, 

                                                    ContentAccess::EPeek ) );

    if ( createError ) 

        {

        __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::GetImageResolutionL \

CreateError" );

        User::Leave( createError );

        }

    CleanupStack::PushL( imageDecoder );

    TSize imageResolution = imageDecoder->FrameInfo().iOverallSizeInPixels;

    CleanupStack::PopAndDestroy( imageDecoder );

    return imageResolution;

    }

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

// From class MMdaAudioPlayerCallback.

// MapcPlayComplete callback (not used)

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

//

void CUpnpResResolver::MapcPlayComplete( TInt /*aError*/ ) 

    {

    //this callback is not needed

    }

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

// From class MMdaAudioPlayerCallback.

// MapcInitComplete callback is called after a call to 

// CMdaAudioConvertUtility::OpenL has completed.

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

//

void CUpnpResResolver::MapcInitComplete( 

                                TInt aError, 

                                const TTimeIntervalMicroSeconds& aDuration ) 

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpResResolver::MapcInitComplete" );

    // if opening was successful, save duration to member variable

    if( KErrNone == aError )

        {

        iDuration = aDuration;

        }

    // continue execution in GetAudioDurationL-method by stopping 

    // ActiveSchedulerWait

    iWait->AsyncStop();

    }

// end of file