--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/multimediacommscontroller/mmccg729payloadformat/src/g729payloadformatwrite.cpp Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,755 @@
+/*
+* Copyright (c) 2004-2007 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: Payload format component capable to write RTP payload
+* containing G729 audio.
+*
+*/
+
+
+
+
+// INCLUDE FILES
+#include "g729payloadformatwrite.h"
+#include "g729payloadformatutil.h"
+#include "mccrtpdatasink.h"
+#include "mmccinterfacedef.h"
+#include "mccuids.hrh"
+#include "mccdef.h"
+#include "streamformatter.h"
+#include "mccrtpmediaclock.h"
+#include "mccredpayloadwrite.h"
+
+
+// ============================= LOCAL FUNCTIONS ===============================
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::CG729PayloadFormatWrite
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CG729PayloadFormatWrite::CG729PayloadFormatWrite()
+ {
+
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::ConstructL (MDataSink* aSink)
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::ConstructL()") );
+ #endif
+
+ // Set default values
+ iFramesPerPacket = 2;
+ iFourCC.Set( KMccFourCCIdG729 );
+
+ // Set data sink
+ iIsRtpSink = ( KMccRtpSinkUid == aSink->DataSinkType() );
+ TBool isRedEncoder
+ = ( TUid::Uid( KImplUidRedPayloadFormatEncode ) == aSink->DataSinkType() );
+
+ if ( iIsRtpSink )
+ {
+ CMccRtpDataSink* tmp = static_cast<CMccRtpDataSink*>( aSink );
+ iRtpDataSink = static_cast<MMccRtpDataSink*>( tmp );
+ }
+ else if ( isRedEncoder )
+ {
+ CMccRedPayloadWrite* tmp = static_cast<CMccRedPayloadWrite*>( aSink );
+ iRtpDataSink = static_cast<MMccRtpDataSink*>( tmp );
+ iIsRtpSink = ETrue;
+ }
+ else
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::ConstructL, sink not RTP one" ) );
+ #endif
+ }
+
+ iClip = aSink;
+
+ // Initialize state machine
+ iStateMachine = CFormatEncodeStateMachine::NewL( this );
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CG729PayloadFormatWrite* CG729PayloadFormatWrite::NewL (MDataSink* aSink)
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print (_L ("CG729PayloadFormatWrite::NewL()"));
+ #endif
+
+ __ASSERT_ALWAYS( aSink, User::Leave( KErrArgument ) );
+
+ CG729PayloadFormatWrite* self = new (ELeave) CG729PayloadFormatWrite;
+ CleanupStack::PushL ( self );
+ self->ConstructL ( aSink );
+ CleanupStack::Pop( self );
+ return self;
+ }
+
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::~CG729PayloadFormatWrite
+// Destructor..
+// -----------------------------------------------------------------------------
+//
+CG729PayloadFormatWrite::~CG729PayloadFormatWrite ()
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::~CG729PayloadFormatWrite()") );
+ #endif
+
+ if ( iStateMachine )
+ {
+ iStateMachine->Cancel();
+ }
+
+ // Media clock is not owned
+ if ( iRtpMediaClock )
+ {
+ iRtpMediaClock->UnregisterMediaFormat( iKey );
+ }
+
+ delete iSourceBuffer;
+ delete iSinkBuffer;
+ delete iStateMachine;
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SinkThreadLogon
+// Passes the logon command to the sink clip
+// -----------------------------------------------------------------------------
+//
+TInt CG729PayloadFormatWrite::SinkThreadLogon(
+ MAsyncEventHandler& aEventHandler )
+ {
+ iClip->SinkThreadLogon( aEventHandler );
+ return KErrNone;
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SinkThreadLogoff
+// Passes the logoff command to the sink clip
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::SinkThreadLogoff()
+ {
+ iClip->SinkThreadLogoff();
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::CreateSinkBufferL
+// Create a sink buffer
+// -----------------------------------------------------------------------------
+//
+CMMFBuffer* CG729PayloadFormatWrite::CreateSinkBufferL( TMediaId aMediaId,
+ TBool &aReference )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::CreateSinkBufferL()") );
+ #endif
+
+ if ( KUidMediaTypeAudio != aMediaId.iMediaType )
+ {
+ User::Leave( KErrNotSupported );
+ }
+
+ aReference = ETrue;
+
+ // Create buffer for data transfer between ULDataPath and FormatWrite
+ return CreateSinkBufferOfSizeL( KG729CodecEncBufSize );
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::CreateSinkBufferOfSizeL
+// Create a sink buffer of the given size.
+// -----------------------------------------------------------------------------
+//
+CMMFDataBuffer* CG729PayloadFormatWrite::CreateSinkBufferOfSizeL( TUint aSize )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::CreateSinkBufferOfSizeL()") );
+ #endif
+
+ // Need to create a source buffer
+ if ( !iSourceBuffer )
+ {
+ iSourceBuffer = CMMFDataBuffer::NewL( aSize );
+ iSourceBuffer->Data().FillZ( aSize );
+ iSourceBuffer->SetRequestSizeL( aSize );
+ }
+
+ return iSourceBuffer;
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::EmptyBufferL
+// Empty the given source buffer
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::EmptyBufferL( CMMFBuffer* aBuffer,
+ MDataSource* aSupplier, TMediaId aMediaId )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL aBuffer[0x%x]"), aBuffer);
+ #endif
+
+ __ASSERT_ALWAYS( aBuffer, User::Leave( KErrArgument ) );
+ __ASSERT_ALWAYS ( aBuffer == iSourceBuffer, User::Leave( KErrArgument ) );
+ __ASSERT_ALWAYS( aSupplier, User::Leave( KErrArgument ) );
+ __ASSERT_ALWAYS( KUidMediaTypeAudio == aMediaId.iMediaType,
+ User::Leave( KErrNotSupported ) );
+
+ // Save source buffer parameters and change the state.
+ iDataPath = aSupplier;
+ iMediaId = aMediaId;
+ iSourceBuffer = static_cast<CMMFDataBuffer*>( aBuffer );
+
+ if ( !iSinkBuffer )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL, sink not ready!") );
+ #endif
+
+ iStateMachine->ChangeState( ESourceBufferEmptied );
+ return;
+ }
+
+ TUint32 ts = 0;
+ User::LeaveIfError( iRtpMediaClock->GetTimeStamp( iKey, ts ) );
+
+ if ( iRtpMediaClock->TimeBasedIncrement() )
+ {
+ iFirstPacketFinished = EFalse;
+ }
+
+ if ( 0 == iFrameIndex )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL, SetTimeToPlay") );
+ #endif
+
+ iSinkBuffer->SetTimeToPlay( TInt64( ts ) );
+ iSinkBuffer->SetFrameNumber( aBuffer->FrameNumber() );
+ }
+
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+
+ TDesC8& data = iSourceBuffer->Data();
+ RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL DATALEN: %d"), data.Length() );
+ RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL DATA_SZ: %d"), data.Size() );
+
+ if( data.Length() > KG729NumOfHeaderBytes )
+ {
+ RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL DATA[0]: %u"), data[0] );
+ RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL DATA[1]: %u"), data[1] );
+ }
+
+ #endif
+
+ iStateMachine->ChangeState( EEmptySourceBuffer );
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SetSinkDataTypeCode
+// Set the sink data type to the given four CC code for the given media
+// -----------------------------------------------------------------------------
+//
+TInt CG729PayloadFormatWrite::SetSinkDataTypeCode( TFourCC aSinkFourCC,
+ TMediaId aMediaId )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print (_L ("CG729PayloadFormatWrite::SetSinkDataTypeCode()"));
+ #endif
+
+ if ( KUidMediaTypeAudio != aMediaId.iMediaType )
+ {
+ return KErrNotSupported;
+ }
+
+ iFourCC = aSinkFourCC;
+
+ return KErrNone;
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SinkDataTypeCode
+// Return the sink data type (four CC code) for the given media ID
+// -----------------------------------------------------------------------------
+//
+TFourCC CG729PayloadFormatWrite::SinkDataTypeCode( TMediaId aMediaId )
+ {
+ if ( KUidMediaTypeAudio == aMediaId.iMediaType )
+ {
+ return iFourCC;
+ }
+ else
+ {
+ return TFourCC(); //defaults to 'NULL' fourCC
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::BufferEmptiedL
+// Called after payload buffer is completely emptied by RtpDataSink.
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::BufferEmptiedL( CMMFBuffer* /*aBuffer*/ )
+ {
+
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::NumChannels
+// Returns number of channels
+// -----------------------------------------------------------------------------
+//
+TUint CG729PayloadFormatWrite::NumChannels()
+ {
+ return KMono;
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SampleRate
+// Returns SampleRate
+// -----------------------------------------------------------------------------
+//
+TUint CG729PayloadFormatWrite::SampleRate()
+ {
+ return KG729SampleRate;
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SetSampleRate
+// Set SampleRate
+// -----------------------------------------------------------------------------
+//
+TInt CG729PayloadFormatWrite::SetSampleRate( TUint aSampleRate )
+ {
+ return ( KG729SampleRate == aSampleRate ) ? KErrNone : KErrNotSupported;
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::FrameTimeInterval
+// Return the frame time interval for the given media
+// -----------------------------------------------------------------------------
+//
+TTimeIntervalMicroSeconds CG729PayloadFormatWrite::FrameTimeInterval(
+ TMediaId aMediaId) const
+ {
+ if ( KUidMediaTypeAudio == aMediaId.iMediaType )
+ {
+ return iFrameTimeInterval;
+ }
+ else
+ {
+ return TTimeIntervalMicroSeconds( TInt64( 0 ) );
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::Duration
+// Return the frame time interval for the given media
+// NOT SUPPORTED
+// -----------------------------------------------------------------------------
+//
+TTimeIntervalMicroSeconds CG729PayloadFormatWrite::Duration(
+ TMediaId /*aMediaType*/) const
+ {
+ return TTimeIntervalMicroSeconds( TInt64( 0 ) );
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::EmptySourceBufferL
+// Empty the given sourcebuffer
+// Sourcebuffer is given in iSourceBuffer.
+// Called by statemachine
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::EmptySourceBufferL()
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print (_L ("CG729PayloadFormatWrite::EmptySourceBufferL - SRC BUF SIZE: %d"),
+ iSourceBuffer->Data().Size() );
+ #endif
+
+ TPtrC8 audioFrame( iSourceBuffer->Data().Mid( KG729NumOfHeaderBytes ) );
+ TPtrC8 dtxHeader( iSourceBuffer->Data().Left( KG729NumOfHeaderBytes ) );
+
+ if ( KAudioFrameHeaderByte == dtxHeader[0] )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print (_L ("CG729PayloadFormatWrite::EmptySourceBufferL - AUDIO FRAME") );
+ #endif
+
+ iFrameIndex++;
+ DoBitPacking( audioFrame, iSinkBuffer->Data(), EFalse );
+ }
+ else if ( KCNoiseFrameHeaderByte == dtxHeader[0] )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print (_L ("CG729PayloadFormatWrite::EmptySourceBufferL - CNOISE FRAME") );
+ #endif
+
+ // This is first comfort noise received. Audio in buffer must send
+ // immediately with CN frame at the end of buffer. RFC3551 4.5.6.
+ iFrameIndex = 0;
+ if ( KErrNone == DoBitPacking( audioFrame, iSinkBuffer->Data(), ETrue ) )
+ {
+ DeliverPacketL( *iSinkBuffer );
+ }
+ }
+ else
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print (_L ("CG729PayloadFormatWrite::EmptySourceBufferL - NULL BIT RATE FRAME") );
+ #endif
+ }
+
+ if ( iFrameIndex == iFramesPerPacket )
+ {
+ // Packetization interval amount of audio frames is received
+ iFrameIndex = 0;
+ DeliverPacketL( *iSinkBuffer );
+ }
+
+ iStateMachine->ChangeState( ESourceBufferEmptied );
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::DeliverPacketL
+// Prepare the packet header and deliver the packet to the datasink.
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::DeliverPacketL( CMMFDataBuffer& aPayload )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::DeliverPacketL - TSTAMP: %u"),
+ static_cast<TUint32>( aPayload.TimeToPlay().Int64() ) );
+ #endif
+
+ // Set the marker bit if it is very first packet.
+ if ( !iFirstPacketFinished )
+ {
+ iRtpSendHeader.iMarker = 1;
+ iFirstPacketFinished = ETrue;
+ }
+ else
+ {
+ iRtpSendHeader.iMarker = 0;
+ }
+
+ if ( !iClip )
+ {
+ User::Leave( KErrNotReady );
+ }
+
+ // Construct RTP header.
+ iRtpSendHeader.iPayloadType = iCInfo.iPayloadType;
+ iRtpSendHeader.iTimestamp
+ = static_cast<TUint32>( aPayload.TimeToPlay().Int64() );
+
+ if ( aPayload.Data().Size() )
+ {
+ if ( iIsRtpSink )
+ {
+ iRtpDataSink->EmptyBufferL( &aPayload, this, iMediaId, iRtpSendHeader );
+ }
+ else
+ {
+ aPayload.SetLastBuffer( iRtpSendHeader.iMarker );
+ iClip->EmptyBufferL( &aPayload, this, iMediaId );
+ }
+ }
+
+
+ // Reset the payload buffer -- only if previous EmptyBufferL() is a
+ // synchronous call
+ aPayload.Data().Zero();
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SourceBufferEmptiedL
+// Handle the event that sourcebuffer has been emptied.
+// Sourcebuffer is given in "iSourceBuffer".
+// Called by the statemachine.
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::SourceBufferEmptiedL()
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print (_L ("CG729PayloadFormatWrite::SourceBufferEmptiedL()"));
+ #endif
+
+ iDataPath->BufferEmptiedL(iSourceBuffer);
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SinkPrimeL
+// Prime sink
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::SinkPrimeL()
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print (_L ("CG729PayloadFormatWrite::SinkPrimeL()"));
+ #endif
+
+ iClip->SinkPrimeL();
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SinkPlayL
+// Start playing.
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::SinkPlayL()
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print (_L ("CG729PayloadFormatWrite::SinkPlayL()"));
+ #endif
+
+ // Allocate buffer for data transfer between
+ // FormatWrite - MDataSink AND FormatWrite - redundancy payload encoder
+ delete iSinkBuffer;
+ iSinkBuffer = NULL;
+ iSinkBuffer = CMMFDataBuffer::NewL( iCInfo.iFrameSize * iFramesPerPacket );
+
+ // Start state machine
+ iStateMachine->ChangeState( EEncodeIdle );
+ // RTP Header marker-bit must be set to 1 when starting stream
+ iFirstPacketFinished = EFalse;
+
+ // Start a new cycle of frame collecting
+ iFrameIndex = 0;
+
+ if ( iSinkBuffer )
+ {
+ iSinkBuffer->SetLastBuffer( EFalse );
+ }
+
+ iClip->SinkPlayL();
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SinkPauseL
+// Pause sink
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::SinkPauseL()
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print (_L ("CG729PayloadFormatWrite::SinkPauseL()"));
+ #endif
+
+ iStateMachine->Cancel();
+ iStateMachine->ChangeState( EEncodeIdle );
+
+ iClip->SinkPauseL();
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::SinkStopL
+// Stop sink
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::SinkStopL()
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::SinkStopL") );
+ #endif
+
+ // Stop state machine
+ iStateMachine->Cancel();
+ iStateMachine->ChangeState( EEncodeIdle );
+ iClip->SinkStopL();
+ }
+
+// ---------------------------------------------------------------------------
+// CG729PayloadFormatWrite::DoBitPacking
+// Does bit-packing for encoded speech parameters got from encoder.
+// ---------------------------------------------------------------------------
+//
+TInt CG729PayloadFormatWrite::DoBitPacking( const TDesC8& aSourceBuf,
+ TDes8& aDestBuf, TBool aIsCNoise ) const
+ {
+ if ( aDestBuf.MaxLength() - aDestBuf.Length() < KG729FrameSize10ms )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print ( _L ( "CG729PayloadFormatWrite::DoBitPacking - DESTINATION BUF TOO SMALL!" ) );
+ #endif
+
+ return KErrArgument;
+ }
+ else
+ {
+ TStreamEncoder encoder;
+ encoder.Initialize( const_cast<TUint8*>( aDestBuf.Ptr() ), aDestBuf.Length(), 0 );
+
+ TUint8 numOfParams( 0 );
+ if ( aIsCNoise )
+ {
+ numOfParams = KG729NumOfCNoiseParams;
+ aDestBuf.SetLength( aDestBuf.Length() + KG729CNFrameSize );
+ }
+ else
+ {
+ numOfParams = KG729NumOfAudioParams;
+ aDestBuf.SetLength( aDestBuf.Length() + KG729FrameSize10ms );
+ }
+
+ TUint8 curParamBits( 0 );
+ TInt byteIndex( 0 );
+ TUint8 lsb( 0 );
+ TUint8 msb( 0 );
+
+ for ( TInt i = 0; i < numOfParams; i++ )
+ {
+ if ( aIsCNoise )
+ {
+ curParamBits = KG729CodecBufCNoiseBits[i];
+ }
+ else
+ {
+ curParamBits = KG729CodecBufAudioBits[i];
+ }
+
+ if ( KBitsInByte >= curParamBits )
+ {
+ lsb = aSourceBuf[ byteIndex ];
+ encoder.Encode( TUint32( lsb ), curParamBits );
+ }
+ else
+ {
+ lsb = aSourceBuf[ byteIndex ];
+ msb = aSourceBuf[ byteIndex + 1 ];
+ encoder.Encode( TUint32( msb ), curParamBits - KBitsInByte );
+ encoder.Encode( TUint32( lsb ), KBitsInByte );
+ }
+
+ byteIndex += 2;
+ }
+
+ return KErrNone;
+ }
+ }
+
+// ---------------------------------------------------------------------------
+// CG729PayloadFormatWrite::ConfigurePayloadFormatL
+// Configure payload encoding parameters
+// ---------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::ConfigurePayloadFormatL(
+ const TDesC8& aConfigParams,
+ CMccRtpMediaClock& aClock )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::ConfigurePayloadFormatL IN") );
+ #endif
+ __ASSERT_ALWAYS( aConfigParams.Size() == sizeof( TMccCodecInfo ),
+ User::Leave( KErrArgument ) );
+
+ TMccCodecInfoBuffer infoBuffer;
+ infoBuffer.Copy( aConfigParams );
+
+ if ( !infoBuffer().iIsUpdate )
+ {
+ iCInfo = infoBuffer();
+ iRtpMediaClock = &aClock;
+ iKey = iRtpMediaClock->RegisterMediaFormat( KG729SampleRate ,iCInfo.iHwFrameTime );
+
+ iCInfo.iHwFrameTime = KG729FrameTimeInMs;
+ iFramesPerPacket = iCInfo.iPtime / iCInfo.iHwFrameTime;
+ iCInfo.iFrameSize = KG729FrameSize10ms;
+ iFrameTimeInterval = TInt64( iCInfo.iHwFrameTime * TInt8( iFramesPerPacket ) );
+
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L( "CG729PayloadFormatWrite::ConfigurePayloadFormatL - FramesPerPacket: %d, FrameSize: %d" ), iFramesPerPacket, iCInfo.iFrameSize );
+ #endif
+
+ if ( EGenRedUsed == iCInfo.iAlgoUsed )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::ConfigurePayloadFormatL, RED LEVEL: %d"),
+ iCInfo.iRedundancyCount );
+ #endif
+
+ CPayloadFormatWrite* redEncoder
+ = static_cast<CMccRedPayloadWrite*>( iClip );
+
+ TMccRedPayloadWriteConfig config;
+ config.iRedBlockCount = iCInfo.iRedundancyCount;
+ config.iMaxPayloadSize = iCInfo.iFrameSize * iFramesPerPacket;
+ config.iNumOfEncodings = 1;
+ config.iRedPayloadType = iCInfo.iRedundantPayload;
+ config.InitPayloadTypes();
+ config.iEncPayloadTypes[0] = iCInfo.iPayloadType;
+ TMccRedPayloadWritePckg pckg( config );
+ redEncoder->ConfigurePayloadFormatL( pckg, *iRtpMediaClock );
+ }
+ }
+ else
+ {
+ UpdateConfigurationL( infoBuffer() );
+ }
+
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print ( _L ( "CG729PayloadFormatWrite::ConfigurePayloadFormatL OUT" ) );
+ #endif
+ }
+
+// -----------------------------------------------------------------------------
+// CG729PayloadFormatWrite::UpdateConfigurationL
+// Update payload encoding parameters
+// -----------------------------------------------------------------------------
+//
+void CG729PayloadFormatWrite::UpdateConfigurationL( const TMccCodecInfo& aCodecInfo )
+ {
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::UpdateConfigurationL IN") );
+ #endif
+
+ iCInfo.iPtime = aCodecInfo.iPtime;
+ iCInfo.iPayloadType = aCodecInfo.iPayloadType;
+ iFramesPerPacket = iCInfo.iPtime / iCInfo.iHwFrameTime;
+ iFrameTimeInterval = TInt64( iCInfo.iHwFrameTime * TInt8( iFramesPerPacket ) );
+
+ // Allocate buffer for data transfer between
+ // FormatWrite - MDataSink AND FormatWrite - redundancy payload encoder
+ delete iSinkBuffer;
+ iSinkBuffer = NULL;
+ iSinkBuffer = CMMFDataBuffer::NewL( iCInfo.iFrameSize * iFramesPerPacket );
+
+ // Start a new cycle of frame collecting
+ iFrameIndex = 0;
+
+ #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE
+ RDebug::Print( _L("CG729PayloadFormatWrite::UpdateConfigurationL OUT") );
+ #endif
+ }
+// ========================== OTHER EXPORTED FUNCTIONS =========================
+
+// End of File