/*

* Copyright (c) 2005 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 "mceaudiostream.h"

#include "mcecomaudiostream.h"

#include "mcecomaudiocodec.h"

#include "mcecommediasource.h"

#include "mcecommediasink.h"

#include "mcertpsource.h"

#include "mcertpsink.h"

#include "mceserial.h"

#include "mceevents.h"

#include "cleanupresetanddestroy.h"

#ifdef MCE_COMMON_SERVER_SIDE

#include <mmcccodecinformationfactory.h>

#include <mmcccodecinformation.h>

#endif//MCE_COMMON_SERVER_SIDE

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

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

// CMceComAudioStream::NewL

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

//

CMceComAudioStream* CMceComAudioStream::NewL()

    {

    CMceComAudioStream* self = NewLC();

    CleanupStack::Pop( self );

    return self;

    }

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

// CMceComAudioStream::NewLC

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

//

CMceComAudioStream* CMceComAudioStream::NewLC()

    {

    CMceComAudioStream* self = new (ELeave) CMceComAudioStream();

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

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

// CMceComAudioStream::~CMceComAudioStream

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

//

CMceComAudioStream::~CMceComAudioStream()

    {

    iCodecs.ResetAndDestroy();

    }

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

// CMceComAudioStream::CMceComAudioStream

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

//

CMceComAudioStream::CMceComAudioStream()

    :CMceComMediaStream( KMceAudio )

    {

    }

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

// CMceComAudioStream::AddCodecL

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

//

void CMceComAudioStream::AddCodecL( CMceComCodec* aCodec )

    {

    __ASSERT_ALWAYS( aCodec, User::Leave( KErrArgument ) );

    CMceComAudioCodec* codec = static_cast< CMceComAudioCodec* >( aCodec );

    iCodecs.AppendL( codec );

    }

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

// CMceComAudioStream::RemoveCodecL

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

//

void CMceComAudioStream::RemoveCodecL( CMceComCodec* aCodec )

    {

    TInt index = FindCodecFromList( aCodec );

    if ( index >= 0 )

        {

        RemoveCodecFromListL( index );

        }

    delete aCodec;

    }

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

// CMceComAudioStream::CodecL

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

//

CMceComAudioCodec* CMceComAudioStream::CodecL( TInt aIndex ) const

	{

	__ASSERT_ALWAYS( aIndex >= 0 && aIndex < iCodecs.Count(),

		User::Leave( KErrArgument ) );

	return iCodecs[aIndex];

	}

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

// CMceComAudioStream::CodecCount

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

//

TInt CMceComAudioStream::CodecCount() const

	{

	return iCodecs.Count();

	}

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

// CMceComAudioStream::Codecs

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

//

const RPointerArray<CMceComAudioCodec>& CMceComAudioStream::Codecs() const

    {

    return iCodecs;

    }

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

// CMceComAudioStream::FindCodecL

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

//

CMceComCodec* CMceComAudioStream::FindCodecL( CMceComCodec& aCodec )

    {

    CMceComCodec* foundCodec = NULL;

    CMceComAudioCodec* codec = static_cast<CMceComAudioCodec*>( &aCodec );

    TInt index = FindCodecFromList( codec );

    if ( index == KErrNotFound )

        {

        const TInt codecCount = CodecCount();

        for ( TInt i = 0 ; i < codecCount && !foundCodec; ++i )

            {

            if ( CodecL( i )->iSdpName.CompareF( aCodec.iSdpName ) == 0 )

                {

                foundCodec = CodecL( i );

                }     

            }

        }

    else

        {

        foundCodec = CodecL( index );

        }

    return foundCodec;

    }

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

// CMceComAudioStream::FindCodecFromList

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

//

TInt CMceComAudioStream::FindCodecFromList( CMceComCodec* aCodec ) const

	{

	CMceComAudioCodec* codec = static_cast< CMceComAudioCodec* >( aCodec );

	return iCodecs.Find( codec );

	}

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

// CMceComAudioStream::RemoveCodecFromListL

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

//

void CMceComAudioStream::RemoveCodecFromListL( TInt aIndex )

	{

	__ASSERT_ALWAYS( aIndex >= 0 && aIndex < iCodecs.Count(),

		User::Leave( KErrArgument ) );

	iCodecs.Remove( aIndex );

	}

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

// CMceComAudioStream::DestroyCodecs

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

//

void CMceComAudioStream::DestroyCodecs()

	{

	iCodecs.ResetAndDestroy();

	}

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

// CMceComAudioStream::InternalizeFlatL

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

//

void CMceComAudioStream::InternalizeFlatL( RReadStream& aReadStream )

    {

    CMceComMediaStream::InternalizeFlatL( aReadStream );

    }

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

// CMceComAudioStream::ExternalizeFlatL

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

//

void CMceComAudioStream::ExternalizeFlatL( RWriteStream& aWriteStream )

    {

    CMceComMediaStream::ExternalizeFlatL( aWriteStream );

    }

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

// CMceComAudioStream::InternalizeL

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

//

void CMceComAudioStream::InternalizeL( MMceComSerializationContext& aSerCtx )

    {

    CMceComMediaStream::InternalizeL( aSerCtx );

    TMceAudioStreamSerializer<CMceComAudioStream> serial( *this );

    serial.InternalizeL( aSerCtx );

    }

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

// CMceComAudioStream::ExternalizeL

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

//

void CMceComAudioStream::ExternalizeL( MMceComSerializationContext& aSerCtx )

    {

    CMceComMediaStream::ExternalizeL( aSerCtx );

    TMceAudioStreamSerializer<CMceComAudioStream> serial( *this );

    serial.ExternalizeL( aSerCtx );

    }

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

// CMceComAudioStream::CloneL

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

//

CMceComMediaStream* CMceComAudioStream::CloneL()

    {

    CMceComAudioStream* copy = new (ELeave) CMceComAudioStream();

    CleanupStack::PushL( copy );

    copy->ConstructL( *this );

    CleanupStack::Pop( copy );

    return copy;

    }

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

// CMceComAudioStream::ConstructL

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

//

void CMceComAudioStream::ConstructL()

    {

    CMceComMediaStream::ConstructL();

    }

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

// CMceComAudioStream::ConstructL

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

//

void CMceComAudioStream::ConstructL( CMceComAudioStream& aStream )

    {

    CMceComMediaStream::ConstructL( aStream );

    const TInt codecCount = aStream.CodecCount();

    for ( TInt i = 0 ; i < codecCount ; ++i )

        {

        CMceComAudioCodec* codec = aStream.CodecL( i )->CloneL();

        CleanupStack::PushL( codec );

        AddCodecL( codec );

        CleanupStack::Pop( codec );

        }

    }

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

// CMceComAudioStream::ConstructL

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

//

void CMceComAudioStream::InitializeL( CMceComSession& aParent )

    {

    CMceComMediaStream::InitializeL( aParent );

	const TInt codecCount = CodecCount();

    for ( TInt i = 0 ; i < codecCount ; ++i )

        {

        CodecL( i )->InitializeL( *this );

        }

    }

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

// CMceComAudioStream::UpdateL

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

//

void CMceComAudioStream::UpdateL( CMceComMediaStream& aStream )

    {  

    CMceComMediaStream::UpdateL( aStream );

    CMceComAudioStream* stream = static_cast<CMceComAudioStream*>( &aStream );

    RPointerArray<CMceComAudioCodec> updated;

    MceCleanupResetAndDestroyPushL( updated );

    for ( TInt i = 0 ; i < stream->CodecCount() ; ++i )

        {

        CMceComAudioCodec* update = stream->CodecL( i );

        TBool isUpdated = EFalse;

        TInt j = 0;

        while( !isUpdated && j < CodecCount() )

            {

            CMceComAudioCodec* codec = CodecL( j );

            if ( codec->Id() == update->Id() )

                {

                codec->UpdateL( *update );

                stream->RemoveCodecFromListL( i );

                delete update;

                updated.AppendL( codec );

                RemoveCodecFromListL( j );

                i--;

                isUpdated = ETrue;

                }

            j++;

            }

        }

    if ( CodecCount() > 0 )	//	Codecs have been removed

        {

        Session()->IsStructureChanged() = ETrue;

        }

    DestroyCodecs();

    while( updated.Count() > 0 )

        {

        AddCodecL( updated[0] );

        updated.Remove( 0 );

        }

    CleanupStack::PopAndDestroy();	// updated

    if ( stream->CodecCount() > 0 )	// Streams have been added

        {

        Session()->IsStructureChanged() = ETrue;

        while( stream->CodecCount() > 0 )

            {

            CMceComAudioCodec* add = stream->CodecL( 0 );

            AddCodecL( add );

            stream->RemoveCodecFromListL( 0 );

            }

        }

    }

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

// CMceComAudioStream::ReorderCodecs

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

//

void CMceComAudioStream::ReorderCodecs()

    {

    TLinearOrder<CMceComAudioCodec> order( CMceComAudioCodec::CompareSdpIndex );

    iCodecs.Sort( order );

    }

#ifdef MCE_COMMON_SERVER_SIDE

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

// CMceComAudioStream::SynchronizeL

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

//

void CMceComAudioStream::SynchronizeL( TBool aRoleAnswerer )

    {

    TInt codecIndex( 0 );

    while ( codecIndex < CodecCount() )

        {

        CMceComCodec& codec = *CodecL( codecIndex );

        //When role is offerer stream cannot remove codecs. 

        //It will be done by mediamanager together with mcc

        //if there is session update decoded there might be codecs

        //which are not valid anymore, and thus, needed to be removed.

        TBool remove( !codec.iIsNegotiated && aRoleAnswerer );

        if ( BoundStream() )

            {

            CMceComCodec* sync = BoundStreamL().FindCodecL( codec );

            if ( remove )

                {

                BoundStreamL().RemoveCodecL( sync );

                }

            else if ( sync )

                {

                sync->SynchronizeL( codec, aRoleAnswerer );

                }

            else if ( aRoleAnswerer )

                {

                MCE_DEFINE_AUDIO_CODEC( audioCodec, codec );

                CMceComAudioCodec* copy = audioCodec.CloneL();

                CleanupStack::PushL( copy );

                copy->InitializeL( BoundStreamL() );

                MCE_AUDIO( BoundStreamL() ).AddCodecL( copy );

                CleanupStack::Pop( copy );

                }

            else

                {

                //NOP

                }

            }

        if ( remove )

            {

            RemoveCodecL( &codec );

            }

        else

            {

            codecIndex++;

            }

        }

    }

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

// CMceComAudioStream::UpdateDefaultCodecL

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

//

void CMceComAudioStream::UpdateDefaultCodecL()

    {

    CMceComCodec* highestPrioritySendCodec = NULL;

    CMceComCodec* codec = NULL;

    const RPointerArray< CMceComCodec >& allCodecs = reinterpret_cast< const RPointerArray<CMceComCodec>& >( Codecs() );

    CMceComCodec::TIterator codecs( allCodecs, 

                                    CMceComCodec::TIterator::EFilterIsNegotiated );

    MCE_ITERATOR_FIND_NEXT( codecs, highestPrioritySendCodec, 

                            highestPrioritySendCodec->SendSupported() );

    // If no negotiated send codecs, disable all.

    // If send codec changed, enable new one and disable other send codecs.                                       

    if ( !highestPrioritySendCodec ||

       ( highestPrioritySendCodec &&

         !highestPrioritySendCodec->iIsEnabled ) )

        {

        TBool newDefaultCodecSet( EFalse );

        codecs.Reset();

        codecs.SetFilter( CMceComCodec::TIterator::EFilterNone );

        while( codecs.Next( codec ) )

            {

            if ( !newDefaultCodecSet && codec->iIsNegotiated && codec->SendSupported() )

                {

                codec->SetEnabled( ETrue );

                newDefaultCodecSet = ETrue;

                }

            else

                {

                codec->SetEnabled( EFalse );

                }

            }

        }

    }

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

// CMceComAudioStream::PrepareL

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

//

void CMceComAudioStream::PrepareL()

    {

    __ASSERT_ALWAYS ( CodecCount() > 0, User::Leave( KErrArgument ) );

    if ( BoundStream() )

    	{

    	MCE_DEFINE_AUDIO( boundStream, BoundStreamL() );

        __ASSERT_ALWAYS ( boundStream.CodecCount() > 0, User::Leave( KErrArgument ) );

    	}

    }

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

// CMceComAudioStream::MccStreamType

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

//

TInt CMceComAudioStream::MccStreamType() const

    {

    TInt type = KMccAudioLocalStream;