// Copyright (c) 2003-2009 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:

//

/**

 @file

 @publishedPartner

*/

#include <bluetooth/logger.h>

#include <bluetoothav.h>

#include "gavdpinterface.h"

#ifdef __FLOG_ACTIVE

_LIT8(KLogComponent, LOG_COMPONENT_AVLIB);

#endif

#ifdef _DEBUG

PANICCATEGORY("medcodec");

#endif

TAvdtpMediaCodecCapabilities::TAvdtpMediaCodecCapabilities(

					SymbianBluetoothAV::TBluetoothMediaType aMediaType,

					TBluetoothMediaCodecType aCodecType,

					TInt aLOSC)

: TAvdtpServiceCapability(EServiceCategoryMediaCodec, aLOSC),

iMediaType(aMediaType),

iMediaCodecType(aCodecType)

	{

	}

/**

Parse AVDTP protocol-domain buffer representing media codec capabilities into this

@param aPtr the buffer

@internalTechnology

*/	

EXPORT_C /*virtual*/ void TAvdtpMediaCodecCapabilities::Parse(const TDesC8& aPtr)

	{

	ASSERT_DEBUG(aPtr.Length()>=2);	// the parse broke if this is not true

	iMediaType = static_cast<SymbianBluetoothAV::TBluetoothMediaType>(aPtr[0]>>4);

	iMediaCodecType = static_cast<TBluetoothMediaCodecType>(aPtr[1]);

	}

/**

Allocate a concrete codec capability from an AVDTP-protocol domain buffer

*/

/*static*/ TAvdtpMediaCodecCapabilities* TAvdtpMediaCodecCapabilities::AllocCodecFromPDUL(const TDesC8& aBuf)

	{

	const TInt KMinMediaCodecLOSC = 2;

	if (aBuf.Length() < KMinMediaCodecLOSC)

		{

		User::Leave(KErrCorrupt);

		}

	using namespace SymbianBluetoothAV;

	TAvdtpMediaCodecCapabilities* res = NULL;

	static const TInt KMediaTypeOffset = 0;	

	TBluetoothMediaType type = static_cast

		<TBluetoothMediaType>(aBuf[KMediaTypeOffset]);

	static const TInt KMediaCodecTypeOffset = 1;	

	TBluetoothMediaCodecType codec = static_cast

		<TBluetoothMediaCodecType>(aBuf[KMediaCodecTypeOffset]);

	switch (codec)

		{

		// at present only support SBC

		// more useful for SymbianOS as nearly always want to mix anyway

		// which means decoding to PCM

		// must then re-encode to something, and that might as well be SBC as mandatory

		case EAudioCodecSBC:

			{

			res = new (ELeave) TSBCCodecCapabilities;

			}

			break;

		// to allow other codecs just arrange for a descriptor - clients don't

		// get the parsing done for free			

		// later could use ECOM plugins to support other codecs

		// other codecs can be added compile time in the style of the SBC codec

		default:

			{

			res = new (ELeave) TNonSBCCodecCapabilities(type, codec);

			}

		}

	return res;

	}

/**

Returns the media type

@return media type

@see SymbianBluetoothAV::TBluetoothMediaType

*/

EXPORT_C SymbianBluetoothAV::TBluetoothMediaType TAvdtpMediaCodecCapabilities::MediaType() const

	{

	return iMediaType;	

	}

/**

Returns the media codec type

@return media codec type

@see SymbianBluetoothAV::TBluetoothMediaType

*/

EXPORT_C TBluetoothMediaCodecType TAvdtpMediaCodecCapabilities::MediaCodecType() const

	{

	return iMediaCodecType;

	}