/*

* Copyright (c) 2006 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 FILES

#include <delimitedpathsegment8.h>

#include "mmcccodech263.h"

#include "mccuids.hrh"

#include "mmccinterfacelogs.h"

// EXTERNAL DATA STRUCTURES

// EXTERNAL FUNCTION PROTOTYPES  

// CONSTANTS

const TInt KMaxFmtpAttrLength( 50 );

const TInt KH263DefaultFrameSize( 3000 );

const TInt KH263DefaultMaxBitrate( 64000 );

const TInt KH263DefaultBitrate( 64000 );

const TInt KH263DefaultAllowedBitrate( 1 );

const TInt KH263DefaultFreq( 90000 );

const TUint KMccAllowedH263Bitrate1 = 0x0001;

const TUint KMccAllowedH263Bitrate2 = 0x0002;

const TUint KMccAllowedH263BitrateAll = 0x0003;

const TInt  KH263Bitrate64( 64000 );

const TInt  KH263Bitrate128( 128000 );

// MACROS

// LOCAL CONSTANTS AND MACROS

// MODULE DATA STRUCTURES

// LOCAL FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

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

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

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

// CMccCodecH263::CMccCodecH263

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CMccCodecH263::CMccCodecH263() : CMccCodecInformation()

    {

    }

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

// CMccCodecH263::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CMccCodecH263::ConstructL()

    {

    iSdpName.Copy( KH2632000SdpName );

    iType = KUidMediaTypeVideo; 

    iFmtpAttr = HBufC8::NewL( KMaxFmtpAttrLength );

    iFourCC = KMccFourCCIdH263;

    iSamplingFreq = KH263DefaultFreq;

    iPayloadFormatEncoder = KImplUidH263PayloadFormatEncode;

    iPayloadFormatDecoder = 0;

    SetCodecMode( KH263FormatModeNew );

    SetPTime( KH263PTime );

    SetPayloadType( KH263PayloadType );

    SetFramerate( KH263Framerate );

	SetLevelBasedBitrate( KH263DefaultBitrate );

    SetMaxBitrate( KH263DefaultMaxBitrate );

    SetAllowedBitrates( KH263DefaultAllowedBitrate );

    SetFrameHeight( KH263FrameHeight );

    SetFrameWidth( KH263FrameWidth );

    iFrameSize = KH263DefaultFrameSize;

    }

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

// CMccCodecH263::NewL

// Two-phased constructor.

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

//

CMccCodecH263* CMccCodecH263::NewL()

    {

    CMccCodecH263* self = new( ELeave ) CMccCodecH263;

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CMccCodecH263::~CMccCodecH263

// 

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

//

CMccCodecH263::~CMccCodecH263()

    {

    }

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

// CMccCodecH263::RequireSignalling

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

//

TBool CMccCodecH263::RequireSignalling(

    const CMccCodecInformation& aCandidate ) const      

    {

    return CMccCodecInformation::RequireSignalling( aCandidate );

    }

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

// CMccCodecH263::SetBitrate

// Sets the bitrate used with AMR codec.

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

//

TInt CMccCodecH263::SetBitrate( TUint aBitrate )

	{

    if ( aBitrate <= KH263Bitrate128 )

    	{

    	iBitrate = aBitrate;

    	iBitrateSet = ETrue;

    	return KErrNone;

    	}

    else

    	{

    	return KErrNotSupported;

    	}

	}

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

// CMccCodecH263::SetSamplingFreq

// Sets the sampling frequency. 

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

//

TInt CMccCodecH263::SetSamplingFreq( TUint32 /*aSamplingFreq*/ )

    {

    return KErrNone;

    }

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

// CMccCodecH263::SetSdpName

// Sets the SDP name

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

//

TInt CMccCodecH263::SetSdpName( const TDesC8& aSdpName )

    {

    if ( !aSdpName.CompareF( KH263SdpName ) || 

         !aSdpName.CompareF( KH2632000SdpName ))

        {

        iSdpName.Copy( KH2632000SdpName );

        if ( iCodecMode != KH263FormatModeNew )

            {

            SetCodecMode( KH263FormatModeNew );    

            }

        }

    else if( !aSdpName.CompareF( KH2631998SdpName ))

        {

        iSdpName.Copy( KH2631998SdpName );

        if ( iCodecMode != KH263FormatModeOld )

            {

            SetCodecMode( KH263FormatModeOld );    

            }

        }

    else 

        {

        return KErrNotSupported;

        }

    return KErrNone;

    }

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

// CMccCodecH263::PayloadType

// Sets the payload type

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

//

TInt CMccCodecH263::SetPayloadType( TUint8 aPayloadType )

    {

    if ( aPayloadType < KMinDynamicPT ||

         aPayloadType > KMaxPayloadType ) 

        {

        return KErrNotSupported;

        }

    else 

        {

        iPayloadType = aPayloadType;

        }

    return KErrNone;

    }

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

// CMccCodecH263::SetCodecMode

// Sets the codec mode.

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

//

TInt CMccCodecH263::SetCodecMode( TCodecMode aCodecMode )

    {

    iCodecMode = aCodecMode;

    if ( iCodecMode == KH263FormatModeNew &&

         iSdpName.CompareF( KH2632000SdpName ))

        {

        SetSdpName( KH2632000SdpName );    

        }

    if ( iCodecMode == KH263FormatModeOld &&

	     iSdpName.CompareF( KH2631998SdpName ))

        {

        SetSdpName( KH2631998SdpName );    

        // Ensure that default dynamic pt is not the same for two different

        // codec modes

        if ( iPayloadType == KH263PayloadType )

            {

            SetPayloadType( KH2631998PayloadType );

            }

        }

    return KErrNone;

    }

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

// CMccCodecH263::EnableVAD

// Enable / Disable VAD

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

//

TInt CMccCodecH263::EnableVAD( TBool /*aEnableVAD*/ ) 

    {

    return KErrNotSupported;

    }

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

// CMccCodecH263::SetPTime

// Set PTime

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

//

TInt CMccCodecH263::SetPTime( TUint aPTime )

    {

    if ( aPTime && ( aPTime <= 200 ) && (( aPTime % 10 )  == 0 ))

        {

        iPTime = aPTime;

        return KErrNone;    

        }

    else

        {

        return KErrNotSupported;

        }

    }

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

// CMccCodecH263::SetMaxPTime

// Set Max PTime

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

//

TInt CMccCodecH263::SetMaxPTime( TUint aMaxPTime )

    {

    if ( aMaxPTime && ( aMaxPTime <= 200 ) && (( aMaxPTime % 10 )  == 0 ))

        {

        iMaxPTime = aMaxPTime;

        return KErrNone;    

        }

    else

        {

        return KErrNotSupported;

        }

    }

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

// CMccCodecH263:SetConfigKeyL

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

// 

void CMccCodecH263::SetConfigKeyL( const TDesC8& /*aConfigKey*/ )

    {

    // NOP

    }

// CMccCodecH263::SetAllowedBitrates

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

//

TInt CMccCodecH263::SetAllowedBitrates( TUint aBitrateMask )

    {

    //Confirm that the bitrate mask is valid

    //I.e. after all the valid bitrates are set to zero the value should be zero

    if ( (aBitrateMask >> 8 ) > 0 )

        {

        return KErrArgument;

        }

    else

        {

        /*

        In the future the allowed bitrates will be fetched from the codec

        I.e. the KMccAllowedH263BitrateAll will be changed to the bitrates

        supported by the codec

        */

        iBitrateMask = KMccAllowedH263BitrateAll;

        iBitrateMask &= aBitrateMask;

        SetMaxBitrateFromBitrateMask( iBitrateMask );

        }

    return KErrNone;

    }

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

// CMccCodecH263::CloneDefaultsL

// Make a default setting clone from this codec

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

//

CMccCodecInformation* CMccCodecH263::CloneDefaultsL()

    {

    CMccCodecInformation* codec = CMccCodecH263::NewL();

    CleanupStack::PushL( codec );

    if ( 0 == this->SdpName().CompareF( KH2632000SdpName ) )

        {

        User::LeaveIfError( codec->SetCodecMode( KH263FormatModeNew ) );

        }

    else

        {

        User::LeaveIfError( codec->SetCodecMode( KH263FormatModeOld ) );

        }

    CleanupStack::Pop( codec );

    return codec;

    }

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

// CMccCodecH263::CloneDetailedL

// Make a detailed clone from this codec

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

//

CMccCodecInformation* CMccCodecH263::CloneDetailedL()

    {

    CMccCodecH263* newCodec = CMccCodecH263::NewL();

    CleanupStack::PushL( newCodec );       

    newCodec->SetBitrate( this->Bitrate() );

    newCodec->SetCodecMode( this->CodecMode() );

    newCodec->SetMaxPTime( this->MaxPTime() );

    newCodec->SetPayloadType( this->PayloadType() );

    newCodec->SetPTime( this->PTime() );

    newCodec->SetSamplingFreq( this->SamplingFreq() );

    newCodec->SetSdpName( this->SdpName() );

    CleanupStack::Pop( newCodec );   

    return newCodec;

    }

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

// CMccCodecH263::GetFmtpL

// Gets the fmtp attribute

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

//

TDesC8& CMccCodecH263::GetFmtpL()

    {

    __INTERFACE( "CMccCodecH263::GetFmtpL" )      

    if ( iFmtpAttr )

        {

        delete iFmtpAttr;

        iFmtpAttr = NULL;

        }

    TInt level = KH263Level10;

    if ( iMaxBitrate > KH263Level10Bitrate && 

         iMaxBitrate <= KH263Level45Bitrate )  

        {

        __INTERFACE( "CMccCodecH263::GetFmtpL, level set 45" )        

        level = KH263Level45;     

        }

    iFmtpAttr = HBufC8::NewL( KMaxFmtpAttrLength );

    iFmtpAttr->Des().Format( KH263FmtpLine, level );                

    __INTERFACE( "CMccCodecH263::GetFmtpL, exit" )      

    return *iFmtpAttr;    

    }

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

// CMccCodecH263::SetFmtpAttrL

// Gets the fmtp attribute

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

//

void CMccCodecH263::SetFmtpAttrL( const TDesC8& aFmtp, TBool /*parseFmtp*/ )

    {

    __INTERFACE( "CMccCodecH263::SetFmtpAttrL" )      

    if ( iFmtpAttr )

        {

        delete iFmtpAttr;

        iFmtpAttr = NULL;

        }

    iFmtpAttr = HBufC8::NewL( aFmtp.Length() );

    iFmtpAttr->Des().Copy( aFmtp );

    ParseFmtpAttrL( *iFmtpAttr );          

    __INTERFACE( "CMccCodecH263::SetFmtpAttrL, exit" )      

    }        

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

// CMccCodecH263::ParseFmtpAttrL

// Parse the fmtp string, but doesn't update the iFmtpAttr

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

//

TBool CMccCodecH263::ParseFmtpAttrL( const TDesC8& aFmtp )

    {

    __INTERFACE( "CMccCodecH263::ParseFmtpAttrL" )      

    const TUint8* pointerC = aFmtp.Ptr();

    TUint8* pointer        = const_cast<TUint8*>( pointerC );

    TPtr8 descriptor( pointer, aFmtp.Length(), aFmtp.Length() );

    descriptor.Trim();

    TDelimitedPathSegmentParser8 parser;

    parser.Parse( aFmtp );

    TPtrC8 segment;

    TBool updated( EFalse );

    while ( parser.GetNext( segment ) != KErrNotFound )

        {

        if ( ParseFmtpSegmentL( segment ) )

            {

            updated = ETrue;

            }

        }

    __INTERFACE( "CMccCodecH263::ParseFmtpAttrL, exit" )      

    return updated;

    }

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

// CMccCodecH263::ParseFmtpSegmentL

// Parse and updates the matched param

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

//    

TBool CMccCodecH263::ParseFmtpSegmentL( const TDesC8& aSeg )

    {

    __INTERFACE( "CMccCodecH263::ParseFmtpSegmentL" )      

    TBool success( ETrue );

    _LIT8( KEqualSign, "=" );

    // Check for first '=' sign 

    TInt index = aSeg.Find( KEqualSign );

    if ( index > 0 )

        {

        // Check if match profile

        if ( aSeg.Left( index).Match( KH263Profile ) != KErrNotFound )

            {

            success = ParseProfileL( aSeg.Right( aSeg.Length() - ( index + 1 ) ) );

            }

        // Check if match level

        else 

            {

            if ( aSeg.Left( index).Match( KH263Level ) != KErrNotFound )

                {

                success = ParseLevelL( aSeg.Right( aSeg.Length() - ( index + 1 ) ) );

                }

            }

        }  

    __INTERFACE( "CMccCodecH263::ParseFmtpSegmentL, exit" )      

    return success;

    }

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

// CMccCodecH263::ParseProfile

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

//    

TBool CMccCodecH263::ParseProfileL( const TDesC8& aFmtp )

    {

    __INTERFACE( "CMccCodecH263::ParseProfileL, exit" )      

    TBool success( ETrue );

    TLex8 myLex( aFmtp );

    TInt value;

    TInt err = myLex.Val( value );

    if ( err == KErrNone )

        {

        switch ( value )

            {

            case 0:

                __INTERFACE( "CMccCodecH263::ParseProfileL, profile 0" )      

                break;

            default:

                __INTERFACE( "CMccCodecH263::ParseProfileL, unsupported profile" )      

                success = EFalse;

                break;

            }

        } 

    else

        {

        success = EFalse;

        }

    if ( !success )

        {

        __INTERFACE( "CMccCodecH263::ParseProfileL, leaving with KErrArgument" )              

        User::Leave( KErrArgument );

        }

    __INTERFACE( "CMccCodecH263::ParseProfileL, exit" )

    return ETrue;

    }