/*

* 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 of base DLNA profile resolver class for av 

*                files.

*

*/

// includes

#include <badesca.h> // CDesC16ArrayFlat

#include <3gplibrary/mp4lib.h>

#include "upnpavsolverbase.h"

_LIT( KComponentLogfile, "dlnaprofiler.txt");

#include "upnplog.h"

// constants

_LIT8( KVideoMp4, "video/mp4" );

_LIT( KMpeg4_p2_mp4_sp_l2_aac,      "MPEG4_P2_MP4_SP_L2_AAC" );

_LIT( KMpeg4_p2_mp4_sp_aac,         "MPEG4_P2_MP4_SP_AAC" );

_LIT( KMpeg4_p2_mp4_sp_vga_aac,     "MPEG4_P2_MP4_SP_VGA_AAC" );

_LIT( KMpeg4_p2_mp4_sp_l5_aac,      "MPEG4_P2_MP4_SP_L5_AAC" );

_LIT( KAvc_mp4_bl_cif15_aac,        "AVC_MP4_BL_CIF15_AAC" );

_LIT( KAvc_mp4_bl_cif15_aac_520,    "AVC_MP4_BL_CIF15_AAC_520" );

const TUint32 KSimpleProfileLevel2 = 0x02;

const TUint32 KSimpleProfileLevel3 = 0x03;

const TUint32 KSimpleProfileLevel4 = 0x04;

const TUint32 KSimpleProfileLevel5 = 0x05;

const mp4_u32 KMaxXResolutionCif = 352;

const mp4_u32 KMaxYResolutionCif = 288;

const mp4_u32 KMaxXResolutionVga = 640;

const mp4_u32 KMaxYResolutionVga = 480;

//const TInt  KBitrateAverageToMaxFactor = 20;

//const mp4_u32 KMaxBitrateCif520 = 520;

//const mp4_u32 KMaxBitrateCif = 384;

//const TUint32 KAdvancedSimpleProfileLevel1 = 0x91;

//const TUint32 KAdvancedSimpleProfileLevel2 = 0x92;

//const TUint32 KAdvancedSimpleProfileLevel3 = 0x93;

//const TUint32 KAdvancedSimpleProfileLevel4 = 0x94;

//const TUint32 KAvcBaseline1_2 = 12;

/*

===========================================================================

Codec-specific details are explained here

(for the part that is currently required by upnp framework)

MPEG4 part2

------------

see ISO/IEC 14496-2, chapter 6.2.2 and annex G

(http://akuvian.org/src/x264/ISO-IEC-14496-2_2001_MPEG4_Visual.pdf.gz)

32 bit: visual_object_sequence_start_code (not interesting)

8 bit: profile_and_level_indication, where:

   0x02 = simple profile, level 2

   0x03 = simple profile, level 3

   0x04 = simple profile, level 4a

   0x05 = simple profile, level 5

   0x91 = advanced simple profile, level 1

   0x92 = advanced simple profile, level 2

   0x93 = advanced simple profile, level 3

   0x94 = advanced simple profile, level 4

...

MPEG4 part 10 (AVC)

-------------------

see ISO/IEC 14496-15, chapter 5.2.4.1.1

(http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=43178)

8 bit: version (not interesting)

8 bit: AVC profile indication, where

   0x42 = AVC baseline

   0x4D = AVC main

   0x58 = AVC extended

8 bit: compatibility flags (not interesting)

8 bit: AVC level indication, where

   10 = baseline level 1.0

   11 = baseline level 1.1

   12 = baseline level 1.2

   13 = baseline level 1.3

   20 = baseline level 2.0

   21 = baseline level 2.1

   22 = baseline level 2.2

   30 = baseline level 3.0

...

===========================================================================

*/

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

// CUpnpAvSolverBase C++ constructor

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

//

CUpnpAvSolverBase::CUpnpAvSolverBase()

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpAvSolverBase constructor" );

    }

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

// CUpnpAvSolverBase::ConstructL

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

//

void CUpnpAvSolverBase::ConstructL()

    {

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

    }

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

// CUpnpAvSolverBase::NewL

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

//

CUpnpAvSolverBase* CUpnpAvSolverBase::NewL()

    {

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

    CUpnpAvSolverBase* self = CUpnpAvSolverBase::NewLC();

    CleanupStack::Pop( self );

    return self;

    }

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

// CUpnpAvSolverBase::NewLC

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

//

CUpnpAvSolverBase* CUpnpAvSolverBase::NewLC()

    {

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

    CUpnpAvSolverBase* self = new( ELeave ) CUpnpAvSolverBase;

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

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

// CUpnpAvSolverBase destructor

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

//

CUpnpAvSolverBase::~CUpnpAvSolverBase()

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpAvSolverBase destructor" );

    }

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

// From class MUpnpProfiler.

// SupportedProfilesL returns DLNA profiles that are currently supported.

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

//

TInt CUpnpAvSolverBase::SupportedProfilesL( 

                                        CDesC16ArrayFlat* aProfiles ) const

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpAvSolverBase::SupportedProfilesL" );

    TInt retval = KErrNone;

        if ( !aProfiles ) 

        {

        // Invalid parameter

        retval = KErrArgument;

        }

    else 

        {

        // append all new profiles recognized by this solver

        // do not allow duplicates

        TInt tempPos = KErrNotFound;

        if ( aProfiles->Find( KMpeg4_p2_mp4_sp_l2_aac(), 

                              tempPos, 

                              ECmpFolded ) ) 

            {

            aProfiles->AppendL( KMpeg4_p2_mp4_sp_l2_aac() );

            }

        if ( aProfiles->Find( KMpeg4_p2_mp4_sp_aac(), 

                              tempPos, 

                              ECmpFolded ) ) 

            {

            aProfiles->AppendL( KMpeg4_p2_mp4_sp_aac() );

            }

        if ( aProfiles->Find( KMpeg4_p2_mp4_sp_vga_aac(), 

                              tempPos, 

                              ECmpFolded ) ) 

            {

            aProfiles->AppendL( KMpeg4_p2_mp4_sp_vga_aac() );

            }

        if ( aProfiles->Find( KMpeg4_p2_mp4_sp_l5_aac(), 

                              tempPos, 

                              ECmpFolded ) ) 

            {

            aProfiles->AppendL( KMpeg4_p2_mp4_sp_l5_aac() );

            }

        if ( aProfiles->Find( KAvc_mp4_bl_cif15_aac(), 

                              tempPos, 

                              ECmpFolded ) ) 

            {

            aProfiles->AppendL( KAvc_mp4_bl_cif15_aac() );

            }

        if ( aProfiles->Find( KAvc_mp4_bl_cif15_aac_520(), 

                              tempPos, 

                              ECmpFolded ) ) 

            {

            aProfiles->AppendL( KAvc_mp4_bl_cif15_aac_520() );

            }

        }

    return retval;

    }

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

// From class MUpnpProfiler.

// ProfileForFileL is for resolving a DLNA profile of a given file. Besides 

// of file name, also mime type of the file is passed as a parameter in order

// to avoid re-opening the file.

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

//

HBufC* CUpnpAvSolverBase::ProfileForFileL( const TDesC& /*aFilename*/,

                                           const TDesC8& aMimetype, 

                                           RFile& aFile )

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpAvSolverBase::\

ProfileForFileL" );

    HBufC* retval = NULL;

    if ( aMimetype.Compare( KVideoMp4() ) == 0 ) 

        {

        GetVideoFileInformationL( aFile );

        if ( iVideoType == MP4_TYPE_MPEG4_VIDEO &&

             iAudioType == MP4_TYPE_MPEG4_AUDIO )

            {

            // MPEG4 level 2

            TUint32 level = iCodecInfo.iData[1] & 0x000000FF;

            __LOG1( "[CUpnpAvSolverBase] CUpnpAvSolverBase::\

            GetVideoFileInformationL level %d", level );

            if ( level == KSimpleProfileLevel2 )

                {

                // Simple profile level 2

                retval = HBufC::NewL( KMpeg4_p2_mp4_sp_l2_aac().Length() );

                retval->Des().Append( KMpeg4_p2_mp4_sp_l2_aac() ); 

                }

            else if ( level == KSimpleProfileLevel3 )

                {

                // Simple profile level 3

                if ( iVideoResolutionX <= KMaxXResolutionCif &&

                    iVideoResolutionY <= KMaxYResolutionCif )

                    {

                    // resolution below CIF standard

                    retval = HBufC::NewL( KMpeg4_p2_mp4_sp_aac().Length() );

                    retval->Des().Append( KMpeg4_p2_mp4_sp_aac() ); 

                    }

                else if ( iVideoResolutionX <= KMaxXResolutionVga &&

                    iVideoResolutionY <= KMaxYResolutionVga )

                    {

                    // resolution below VGA standard

                    retval = HBufC::NewL(

                        KMpeg4_p2_mp4_sp_vga_aac().Length() );

                    retval->Des().Append( KMpeg4_p2_mp4_sp_vga_aac() ); 

                    }

                }

            else if ( level == KSimpleProfileLevel4 )

                {

                // Simple profile level 4a

                retval = HBufC::NewL( KMpeg4_p2_mp4_sp_vga_aac().Length() );

                retval->Des().Append( KMpeg4_p2_mp4_sp_vga_aac() ); 

                }

            else if ( level == KSimpleProfileLevel5 )

                {

                // Simple profile level 5

                retval = HBufC::NewL( KMpeg4_p2_mp4_sp_l5_aac().Length() );

                retval->Des().Append( KMpeg4_p2_mp4_sp_l5_aac() ); 

                }                

/*

Not needed yet:

            else if ( level == KAdvancedSimpleProfileLevel1 ||

                level == KAdvancedSimpleProfileLevel2 ||

                level == KAdvancedSimpleProfileLevel3 ||

                level == KAdvancedSimpleProfileLevel4 )

                {

                // Advanced simple profile (levels 1-4)

                retval = HBufC::NewL( KMpeg4_p2_mp4_sp_l5_aac().Length() );

                retval->Des().Append( KMpeg4_p2_mp4_sp_l5_aac() ); 

                }

*/

            }

/*

  Temporary solution, based on AVC video resolution. 

  iLevel should be used instead, see above Mp4 P2.

*/

        else if ( iVideoType == MP4_TYPE_AVC_PROFILE_BASELINE &&

            iAudioType == MP4_TYPE_MPEG4_AUDIO )

            {

            // MPEG4 part 10 (AVC)

            	if (iVideoResolutionX <= KMaxXResolutionCif && 

            		iVideoResolutionY <= KMaxYResolutionCif )

            	{

                    retval = HBufC::NewL( KAvc_mp4_bl_cif15_aac_520().Length() );

                    retval->Des().Append( KAvc_mp4_bl_cif15_aac_520() );            		

            	}

            }

        }

    return retval;

    }

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

// GetVideoFileInformationL is for resolving audio file attributes by using 

// CMdaAudioConvertUtility. 

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

//

TInt CUpnpAvSolverBase::GetVideoFileInformationL( RFile& aFile )

    {

    __LOG( "[UPnPDlnaProfiler] CUpnpAvSolverBase::\

GetVideoFileInformationL" );

    TInt retval = KErrNone;

    // video description

    mp4_u32 videolength;

    mp4_u32 videotimescale;

    // audio params

    mp4_u32 audiolength = 0;

    mp4_u8 audioframes = 0;

    mp4_u32 audiotimescale = 0;

    mp4_u32 audiobitrate = 0;

    // stream params

    mp4_u32 streamsize = 0;

    // reset old values 

    iStreamAverageBitrate = 0;

    MP4Handle myMp4Handle;

    // try open mp4 file handle

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

    if ( openerr == MP4_OK )

        {

        MP4Err requesterr = MP4ParseRequestVideoDescription(

                                            myMp4Handle,

                                            &videolength,

                                            &iVideoFramerate,

                                            &iVideoType,

                                            &iVideoResolutionX,

                                            &iVideoResolutionY,

                                            &videotimescale );

        if ( requesterr != MP4_OK )

            {

            MP4ParseClose( myMp4Handle );

            User::Leave( KErrGeneral );

            }

        requesterr = MP4ParseRequestAudioDescription( 

                                            myMp4Handle, 

                                            &audiolength, 

                                            &iAudioType,

                                            &audioframes, 

                                            &audiotimescale, 

                                            &audiobitrate );

        if ( requesterr != MP4_OK )

            {

            MP4ParseClose( myMp4Handle );

            User::Leave( KErrGeneral );

            }

        requesterr = MP4ParseRequestStreamDescription(

                                            myMp4Handle, 

                                            &streamsize, 

                                            &iStreamAverageBitrate );

        if ( requesterr != MP4_OK )

            {

            MP4ParseClose( myMp4Handle );

            User::Leave( KErrGeneral );

            }

        TMP4DecoderSpecificInfo iDecoderInfo;

        mp4_u32 decoderInfoSize;

        requesterr = MP4ParseReadVideoDecoderSpecificInfo(

                                            myMp4Handle,

                                            (mp4_u8*)&iDecoderInfo,

                                            sizeof( iDecoderInfo ),

                                            &decoderInfoSize );

		iCodecInfo = iDecoderInfo;

        // close mp4 file handle

        MP4Err closeerr = MP4ParseClose( myMp4Handle );

        if ( closeerr ) 

            {

            User::Leave( KErrGeneral );

            }

        }

    else 

        {

        // can not open file

        User::Leave( KErrBadHandle );

        }

    return retval;

    }

// end of file