diff -r 000000000000 -r 1bce908db942 multimediacommsengine/mmceshared/src/mcecomamrcodec.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/multimediacommsengine/mmceshared/src/mcecomamrcodec.cpp Tue Feb 02 01:04:58 2010 +0200 @@ -0,0 +1,440 @@ +/* +* Copyright (c) 2008 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 "mceamrcodec.h" +#include "mcecomamrcodec.h" + +#ifdef MCE_COMMON_SERVER_SIDE + +#include + +_LIT8( KDefaultAmrFmtp, "octet-align=0; mode-set=0,1,2,3,4,5,6,7" ); + +#endif//MCE_COMMON_SERVER_SIDE + +const TUint KMceAmrFrameTime( 20 ); + + +// ============================ MEMBER FUNCTIONS =============================== + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::NewL +// ----------------------------------------------------------------------------- +// +CMceComAMRCodec* CMceComAMRCodec::NewL( TBuf8 aSdpName ) + { + CMceComAMRCodec* self = NewLC( aSdpName ); + CleanupStack::Pop( self ); + return self; + + } + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::NewLC +// ----------------------------------------------------------------------------- +// +CMceComAMRCodec* CMceComAMRCodec::NewLC( TBuf8 aSdpName ) + { + CMceComAMRCodec* self = new (ELeave) CMceComAMRCodec(); + CleanupStack::PushL( self ); + self->ConstructL( aSdpName ); + return self; + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::~CMceComAMRCodec +// ----------------------------------------------------------------------------- +// +CMceComAMRCodec::~CMceComAMRCodec() + { + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::CMceComAMRCodec +// ----------------------------------------------------------------------------- +// +CMceComAMRCodec::CMceComAMRCodec() + : CMceComAudioCodec() + { + iFourCC = 0; + iEnableVAD = EFalse; + iSamplingFreq = KMceAmrNbSamplingFreq; + iPTime = KMceDefaultPtime; + iMaxPTime = KMceDefaultMaxPtime; + iBitrate = KMceAmrNbBitrate122; + iAllowedBitrates = KMceAllowedAmrNbBitrate475| + KMceAllowedAmrNbBitrate515| + KMceAllowedAmrNbBitrate590| + KMceAllowedAmrNbBitrate670| + KMceAllowedAmrNbBitrate740| + KMceAllowedAmrNbBitrate795| + KMceAllowedAmrNbBitrate102| + KMceAllowedAmrNbBitrate122; + + const TUint8 KMceDefaultAmrPayloadType = 96; + iPayloadType = KMceDefaultAmrPayloadType; + iCodecMode = EMceBandwidthEfficient; + iFrameSize = KMceAmrFrameTime; + } + + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::CloneL +// ----------------------------------------------------------------------------- +// +CMceComAudioCodec* CMceComAMRCodec::CloneL() + { + CMceComAMRCodec* copy = new (ELeave) CMceComAMRCodec(); + CleanupStack::PushL( copy ); + copy->ConstructL( *this ); + CleanupStack::Pop( copy ); + return copy; + + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::ConstructL +// ----------------------------------------------------------------------------- +// +void CMceComAMRCodec::ConstructL( TBuf8 aSdpName ) + { + CMceComAudioCodec::ConstructL( aSdpName ); + + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::ConstructL +// ----------------------------------------------------------------------------- +// +void CMceComAMRCodec::ConstructL( CMceComAMRCodec& aCodec ) + { + CMceComAudioCodec::ConstructL( aCodec ); + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::SetBitrate +// ----------------------------------------------------------------------------- +// +TInt CMceComAMRCodec::SetBitrate( TUint aBitrate ) + { + TBool isValid = ETrue; + + switch ( aBitrate ) + { + case KMceAmrNbBitrate475: + case KMceAmrNbBitrate515: + case KMceAmrNbBitrate590: + case KMceAmrNbBitrate670: + case KMceAmrNbBitrate740: + case KMceAmrNbBitrate795: + case KMceAmrNbBitrate102: + case KMceAmrNbBitrate122: + { + if ( aBitrate > GetMaxBitRate() ) + { + isValid = EFalse; + } + break; + } + default: + isValid = EFalse; + break; + } + + if ( isValid ) + { + return CMceComCodec::SetBitrate( aBitrate ); + } + else + { + return KErrNotSupported; + } + + } + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::SetAllowedBitrates +// ----------------------------------------------------------------------------- +// +TInt CMceComAMRCodec::SetAllowedBitrates( TUint aBitrates ) + { + TInt error = KErrNone; + + //Confirm that the bitrate mask is valid + //I.e. after all the valid bitrates are set to zero the value should be zero + if ( !aBitrates || + ( aBitrates >> 12 ) > 0 ) + { + error = KErrArgument; + } + else + { + CMceComCodec::SetAllowedBitrates( KMceAllowedAmrNbBitrateAll ); + iAllowedBitrates &= aBitrates; + TUint maxBitrate = GetMaxBitRate(); + if ( iBitrate > maxBitrate ) + { + error = CMceComCodec::SetBitrate( maxBitrate ); + } + + // Update also other amr codec information stored inside + // allowed bitrates mask + const TUint KMceOtherInfoMask = 0x0F00; + iAllowedBitrates |= ( aBitrates & KMceOtherInfoMask ); + } + + return error; + + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::SetCodecMode +// ----------------------------------------------------------------------------- +// +TInt CMceComAMRCodec::SetCodecMode( TUint aCodecMode ) + { + if ( EMceBandwidthEfficient == aCodecMode || EMceOctetAligned == aCodecMode ) + { + iCodecMode = aCodecMode; + return KErrNone; + } + else + { + return KErrNotSupported; + } + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::SetPayloadType +// ----------------------------------------------------------------------------- +// +TInt CMceComAMRCodec::SetPayloadType( TUint8 aPayloadType ) + { + if ( KMinDynPayloadType <= aPayloadType ) + { + return CMceComCodec::SetPayloadType( aPayloadType ); + } + else + { + return KErrNotSupported; + } + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::GetMaxBitRate +// ----------------------------------------------------------------------------- +// +TUint CMceComAMRCodec::GetMaxBitRate() + { + if( iAllowedBitrates & KMceAllowedAmrNbBitrate122 ) + { + return KMceAmrNbBitrate122; + } + else if( iAllowedBitrates & KMceAllowedAmrNbBitrate102 ) + { + return KMceAmrNbBitrate102; + } + else if( iAllowedBitrates & KMceAllowedAmrNbBitrate795 ) + { + return KMceAmrNbBitrate795; + } + else if( iAllowedBitrates & KMceAllowedAmrNbBitrate740 ) + { + return KMceAmrNbBitrate740; + } + else if( iAllowedBitrates & KMceAllowedAmrNbBitrate670 ) + { + return KMceAmrNbBitrate670; + } + else if( iAllowedBitrates & KMceAllowedAmrNbBitrate590 ) + { + return KMceAmrNbBitrate590; + } + else if( iAllowedBitrates & KMceAllowedAmrNbBitrate515 ) + { + return KMceAmrNbBitrate515; + } + else if( iAllowedBitrates & KMceAllowedAmrNbBitrate475 ) + { + return KMceAmrNbBitrate475; + } + else + { + return 0; + } + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::ResolveAllowedBitrates +// ----------------------------------------------------------------------------- +// +TInt CMceComAMRCodec::ResolveAllowedBitrates( + TUint aBitrate, TUint& aAllowedBitrates ) + { + TInt retVal( KErrNone ); + + if ( aBitrate <= KMceAmrNbBitrate475 ) + { + aAllowedBitrates = KMceAllowedAmrNbBitrate475; + } + else if ( aBitrate <= KMceAmrNbBitrate515 ) + { + aAllowedBitrates = KMceAllowedAmrNbBitrate515; + } + else if ( aBitrate <= KMceAmrNbBitrate590 ) + { + aAllowedBitrates = KMceAllowedAmrNbBitrate590; + } + else if ( aBitrate <= KMceAmrNbBitrate670 ) + { + aAllowedBitrates = KMceAllowedAmrNbBitrate670; + } + else if ( aBitrate <= KMceAmrNbBitrate740 ) + { + aAllowedBitrates = KMceAllowedAmrNbBitrate740; + } + else if ( aBitrate <= KMceAmrNbBitrate795 ) + { + aAllowedBitrates = KMceAllowedAmrNbBitrate795; + } + else if ( aBitrate <= KMceAmrNbBitrate102 ) + { + aAllowedBitrates = KMceAllowedAmrNbBitrate102; + } + else if ( aBitrate <= KMceAmrNbBitrate122 ) + { + aAllowedBitrates = KMceAllowedAmrNbBitrateAll; + } + else + { + retVal = KErrNotSupported; + } + + return retVal; + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::SetSamplingFreq +// ----------------------------------------------------------------------------- +// +TInt CMceComAMRCodec::SetSamplingFreq( TUint aSamplingFreq ) + { + if ( KMceAmrNbSamplingFreq == aSamplingFreq || + KMceAmrWbSamplingFreq == aSamplingFreq ) + { + iSamplingFreq = aSamplingFreq; + return KErrNone; + } + else + { + return KErrNotSupported; + } + } + + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::SetPTime +// ----------------------------------------------------------------------------- +// +TInt CMceComAMRCodec::SetPTime( TUint aPTime ) + { + if ( ( aPTime % KMceAmrFrameTime ) == 0 ) + { + return CMceComAudioCodec::SetPTime( aPTime ); + } + else + { + return KErrNotSupported; + } + } + + +// ----------------------------------------------------------------------------- +// CMceComAudioCodec::SetMaxPTime +// ----------------------------------------------------------------------------- +// +TInt CMceComAMRCodec::SetMaxPTime( TUint aMaxPTime ) + { + if ( ( aMaxPTime % KMceAmrFrameTime ) == 0 ) + { + return CMceComAudioCodec::SetMaxPTime( aMaxPTime ); + } + else + { + return KErrNotSupported; + } + } + + +#ifdef MCE_COMMON_SERVER_SIDE + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::DoMccValidateL +// ----------------------------------------------------------------------------- +// +CMceComCodec* CMceComAMRCodec::DoMccValidateL( CMccCodecInformation& aMccCodec, + CMceSrvStream& /*aStream*/, + TMceNegotiationRole aRole ) + { + //if answerer mcc codec represents the received offer and codec the answer + //if offerer codec represents the sent offer and mcc codec the answer + + // Bitrates field contains also additional information, mask it away + TUint mccBitrates = ( aMccCodec.AllowedBitrates() & KMceAllowedAmrNbBitrateAll ); + TUint mceBitrates = ( iAllowedBitrates & KMceAllowedAmrNbBitrateAll ); + + TBool notValid = aRole == EMceRoleAnswerer ? + ( mceBitrates && mccBitrates == 0 || + mceBitrates > mccBitrates ) : + ( mceBitrates && mccBitrates == 0 || + mceBitrates < mccBitrates ); + + User::LeaveIfError( notValid ? KErrNotSupported : KErrNone ); + if ( aMccCodec.CodecMode() != (TCodecMode)iCodecMode ) + { + // codec-mode was different, fail. + User::Leave(KErrNotSupported); + } + return NULL; + } + +// ----------------------------------------------------------------------------- +// CMceComAMRCodec::DoSetDefaultFmtpAttributeL +// ----------------------------------------------------------------------------- +// +void CMceComAMRCodec::DoSetDefaultFmtpAttributeL() + { + SetFmtpAttributeL( KDefaultAmrFmtp ); + } + +#endif + +// End of File