--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/amrwb_dec/ariamrwbdecmmfcodec/src/ariamrwbdecmmfcodec.cpp Fri Jul 23 16:58:44 2010 +0100
@@ -0,0 +1,597 @@
+/*
+* Copyright (c) 2009 Aricent and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:
+* Aricent - initial contribution.
+*
+* Contributors:
+*
+* Description:
+* Implementation of member functions of Plugin class (CAriAmrWbDecMmfCodec).
+*
+*/
+
+
+// System includes
+#include <ecom.h>
+#include <implementationproxy.h>
+// User includes
+#include "ariamrwbdecwrapper.h"
+#include "ariamrwbdecmmfcodec.h"
+#include "ariamrwbdecmmfcodec_uid.hrh"
+#include "ariprint.h"
+
+// Maximum input and output buffer length
+const TUint KAMRWBMINOutBufLength = 640;
+
+
+//---------------------------------------------------------------------------
+// Two-phased constructor.
+// Creates an instance of CAriAmrWbDecMmfCodec.
+// Instance is not left on cleanup stack.
+//---------------------------------------------------------------------------
+//
+CMMFCodec* CAriAmrWbDecMmfCodec::NewL()
+ {
+ PRINT_ENTRY;
+ CAriAmrWbDecMmfCodec* self = new ( ELeave ) CAriAmrWbDecMmfCodec();
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ CleanupStack::Pop( self );
+ PRINT_EXIT;
+ return ( CMMFCodec* )self;
+ }
+
+//---------------------------------------------------------------------------
+// Destructor;Destroys the decoder instance and any internal buffers
+//---------------------------------------------------------------------------
+//
+CAriAmrWbDecMmfCodec::~CAriAmrWbDecMmfCodec()
+ {
+ PRINT_ENTRY;
+ if ( iInternalInputBuffer )
+ {
+ delete iInternalInputBuffer;
+ iInternalInputBuffer = NULL;
+ }
+ if ( iInternalOutputBuffer )
+ {
+ delete iInternalOutputBuffer;
+ iInternalOutputBuffer = NULL;
+ }
+
+ if ( iCodec )
+ {
+ delete iCodec;
+ iCodec = NULL;
+ }
+
+ PRINT_EXIT;
+ }
+
+//---------------------------------------------------------------------------
+// From class CMMFCodec.
+// The function Sets codec configuration.
+// The value used for aConfigType must be KUidMmfCodecAudioSettings
+// (defined in include\mmf\plugins\mmfCodecImplementationUIDs.hrh)
+//---------------------------------------------------------------------------
+//
+void CAriAmrWbDecMmfCodec::ConfigureL( TUid /* aConfigType */,
+ const TDesC8& /*aParam*/ )
+ {
+ PRINT_ENTRY;
+ PRINT_EXIT;
+ }
+//---------------------------------------------------------------------------
+// From class CMMFCodec.
+// This function is used to flush out status information when a
+// reposition occurs.
+// This is used if the codec requires resetting prior to use.
+//---------------------------------------------------------------------------
+//
+void CAriAmrWbDecMmfCodec::ResetL()
+ {
+ PRINT_ENTRY;
+ iInternalInputBufferResidueLen = 0;
+ iInternalOutputBufferPos = 0;
+ iInternalOutputBufferResidueLen = 0;
+ PRINT_EXIT;
+ }
+
+
+//---------------------------------------------------------------------------
+// From class CMMFCodec.
+// This function is used to decode the given source and fill the destination
+// buffer with the decode data.
+// The buffers can be of any size. Since the buffers can be of any size there
+// is no guarantee that all the source buffer can be processed to fill the
+// destination buffer or that the all the source buffer may be processed
+// before the destination is full. Therefore the ProcessL needs to return a
+// TCodecProcessResult returing the number of source bytes processed and the
+// number of destination bytes processed along with a process result code
+// defined thus:
+// - EProcessComplete: the codec processed all the source data into the sink
+// buffer
+// - EProcessIncomplete: the codec filled sink buffer before all the source
+// buffer was processed
+// - EDstNotFilled: the codec processed the source buffer but the sink buffer
+// was not filled
+// - EEndOfData: the codec detected the end data - all source data in
+// processed but sink may not be full
+// - EProcessError: the codec process error condition
+//
+// The ProcessL should start processing the source buffer from the iPosition
+// data member of the source data and start filling the destination buffer
+// from its iPosition.
+//---------------------------------------------------------------------------
+//
+TCodecProcessResult CAriAmrWbDecMmfCodec::ProcessL( const CMMFBuffer& aSrc,
+ CMMFBuffer& aDst )
+ {
+ PRINT_ENTRY;
+
+ // total decoded bytes added to the dst buffer
+ TInt totalDstBytesAdded = 0;
+ // total src bytes added to the internal src buffer
+ TInt totalSrcBytesCopied = 0;
+ // temporary variable to use for copying the sorce or destination data
+ TInt numberOfBytesCopied;
+ // Flag for finding valid sync
+ TBool syncFound = EFalse;
+
+ /**
+ * Process the dst buffer, update the dstBufferPos and check
+ * whether dst buffer is NULL or not.
+ */
+ CMMFDataBuffer* dst = static_cast<CMMFDataBuffer*>( &aDst );
+
+ const TInt dstMaxLen = dst->Data().MaxLength();
+ TUint8* dstPtr = const_cast<TUint8*>( dst->Data().Ptr() );
+ TInt dstBufferPos = dst->Position();
+
+ /**
+ * Process the src buffer, update srcbuffer length, position and
+ * flag for last frame. check whether src buffer is NULL or not
+ * and check src buffer contains any data
+ */
+ const CMMFDataBuffer* src = static_cast<const CMMFDataBuffer*>( &aSrc );
+
+ TUint8* srcPtr = const_cast <TUint8*>( src->Data().Ptr() );
+ TInt srcBufferLen = src->Data().Length();
+ TInt srcBufferPos = src->Position();
+ TBool lastFrame = src->LastBuffer();
+
+ if ( srcBufferLen == 0 && iInternalInputBufferResidueLen == 0 )
+ {
+ PRINT_ERR( "source buffer length is zero" );
+ User::Leave( KErrArgument );
+ }
+
+ /**
+ * if any destination bytes from internal destination buffer is not
+ * given to the dst buffer from the previous call, give it to the
+ * dst buffer. After this block, it ensures that no bytes are remaining
+ * in the internal destination buffer.
+ */
+ if ( iInternalOutputBufferResidueLen - iInternalOutputBufferPos > 0 )
+ {
+ numberOfBytesCopied = CopyToDstBuffer( dst, totalDstBytesAdded );
+
+ if ( iInternalOutputBufferResidueLen - iInternalOutputBufferPos > 0 )
+ {
+ PRINT_EXIT;
+ return Result( TCodecProcessResult::EProcessIncomplete,
+ totalSrcBytesCopied, totalDstBytesAdded );
+ }
+ else
+ {
+ if ( ( lastFrame ) && ( srcBufferLen - srcBufferPos == 0 )&&
+ ( iInternalInputBufferResidueLen == 0 ) )
+ {
+ iInternalOutputBufferResidueLen = 0;
+ iInternalInputBufferResidueLen = 0;
+ iInternalOutputBufferPos = 0;
+ PRINT_EXIT;
+ return Result( TCodecProcessResult::EEndOfData,
+ totalSrcBytesCopied, totalDstBytesAdded );
+ }
+ iInternalOutputBufferPos = 0;
+ iInternalOutputBufferResidueLen = 0;
+ }
+ }
+
+ /**
+ * copy the src buffer data into the internal buffer till internal buffer
+ * holds minimum bytes to process i.e KMinBytesInput. After this block, it
+ * ensures that internal source buffer holds KMinBytesInput.
+ * if it is a last frame, treat remaining residual buffer as internal
+ * buffer.
+ */
+ if ( ( KAMRWBMINOutBufLength - iInternalInputBufferResidueLen > 0 )
+ && ( srcBufferLen - srcBufferPos > 0 ) )
+ {
+ numberOfBytesCopied = CopyFromSrcBuffer( src, totalSrcBytesCopied );
+ }
+
+ if ( ( KAMRWBMINOutBufLength > iInternalInputBufferResidueLen )
+ && ( !lastFrame ) )
+ {
+ PRINT_EXIT;
+ return Result( TCodecProcessResult::EDstNotFilled,
+ srcBufferLen - srcBufferPos, totalDstBytesAdded );
+ }
+
+ /**
+ * process the src buffer till destination buffer or source buffer
+ * or both buffers are exhausted.
+ */
+ do
+ {
+ TInt srcBufferRemainingBytes = srcBufferLen
+ - srcBufferPos
+ - totalSrcBytesCopied;
+ TInt dstBufferRemainingBytes = dstMaxLen
+ - dstBufferPos
+ - totalDstBytesAdded;
+ TInt internalInputBufferPos = 0;
+
+
+ /**
+ * initialize the variables like srcUsed and dstLen accordingly.
+ * call Decode.
+ */
+
+ TInt32 srcUsed = iInternalInputBufferResidueLen
+ - internalInputBufferPos;
+ TInt32 dstLen = KAMRWBMINOutBufLength;
+
+ TInt error =
+ iCodec->Decode( &iInternalInputBuffer[internalInputBufferPos],
+ srcUsed,( TInt32* )iInternalOutputBuffer, dstLen );
+
+ if ( KErrNone != error )
+ {
+ iInternalInputBufferResidueLen = 0;
+ PRINT_ERR( "Amr Wb Decoder decoding is failed" );
+ return Result(
+ TCodecProcessResult::EProcessError,
+ totalSrcBytesCopied, totalDstBytesAdded );
+ }
+
+ /**
+ * Fill Destination Buffer
+ */
+
+ iInternalOutputBufferResidueLen = dstLen;
+ numberOfBytesCopied = CopyToDstBuffer( dst, totalDstBytesAdded );
+ dstBufferRemainingBytes -= numberOfBytesCopied;
+
+ /***
+ * Fill Sorce Buffer
+ */
+
+ internalInputBufferPos += srcUsed ;
+ ShiftData( internalInputBufferPos, 0 );
+ numberOfBytesCopied = CopyFromSrcBuffer( src, totalSrcBytesCopied );
+ srcBufferRemainingBytes -= numberOfBytesCopied;
+ internalInputBufferPos = 0;
+
+ /***
+ * check four conditions if else for src and if else for dst
+ */
+
+ // src buffer has available bytes to decode
+ if ( srcBufferRemainingBytes > 0 )
+ {
+ if ( dstBufferRemainingBytes == 0 )
+ {
+ PRINT_EXIT;
+ return Result( TCodecProcessResult::EProcessIncomplete,
+ totalSrcBytesCopied, totalDstBytesAdded );
+ }
+ }
+
+ else
+ {
+ // dst buffer has availabe space for decoded bytes
+ if ( dstBufferRemainingBytes > 0 )
+ {
+ // last frame of the input stream
+ if ( lastFrame )
+ {
+ if ( iInternalInputBufferResidueLen == 0 )
+ {
+ PRINT_EXIT;
+ return Result( TCodecProcessResult::EEndOfData,
+ totalSrcBytesCopied, totalDstBytesAdded );
+ }
+ }
+ else
+ {
+ PRINT_EXIT;
+ return Result( TCodecProcessResult::EDstNotFilled,
+ totalSrcBytesCopied, totalDstBytesAdded );
+ }
+ }
+ else
+ {
+ /**
+ *internal output buffer has decoded bytes which is not
+ *given to dst buffer.
+ */
+ if ( iInternalOutputBufferResidueLen
+ - iInternalOutputBufferPos > 0 )
+ {
+ PRINT_EXIT;
+ return Result( TCodecProcessResult::EProcessIncomplete,
+ totalSrcBytesCopied, totalDstBytesAdded );
+ }
+ // last frame of the input stream
+ else if ( lastFrame )
+ {
+ // if internal buffer has available bytes to decode
+ if ( iInternalInputBufferResidueLen > 0 )
+ {
+ PRINT_EXIT;
+ return Result(
+ TCodecProcessResult::EProcessIncomplete,
+ totalSrcBytesCopied, totalDstBytesAdded );
+ }
+ else
+ {
+ iInternalInputBufferResidueLen = 0;
+ PRINT_EXIT;
+ return Result( TCodecProcessResult::EEndOfData,
+ totalSrcBytesCopied, totalDstBytesAdded );
+ }
+ }
+ else
+ {
+ PRINT_EXIT;
+ return Result( TCodecProcessResult::EProcessComplete,
+ totalSrcBytesCopied, totalDstBytesAdded );
+ }
+ }
+ }
+ }while ( 1 );
+ }
+
+
+
+//---------------------------------------------------------------------------
+// Default constructor for performing 1st stage construction.
+// Should not contain any code that could leave.
+//---------------------------------------------------------------------------
+//
+CAriAmrWbDecMmfCodec::CAriAmrWbDecMmfCodec():
+iCodec( NULL ), iInternalInputBuffer( NULL ),
+iInternalOutputBuffer( NULL ), iInternalInputBufferResidueLen( 0 ),
+iInternalOutputBufferResidueLen( 0 ), iInternalOutputBufferPos( 0 )
+ {
+ PRINT_ENTRY;
+ PRINT_EXIT;
+ }
+
+//---------------------------------------------------------------------------
+// Destructor;Destroys the decoder instance and any internal buffers
+//---------------------------------------------------------------------------
+//
+void CAriAmrWbDecMmfCodec::ConstructL()
+ {
+ PRINT_ENTRY;
+
+ iCodec = CAriAmrWbDecWrapper::NewL();
+
+ if ( !iCodec )
+ {
+ PRINT_ERR( "Amr Nb Decoder creation is failed" );
+ User::Leave( KErrGeneral );
+ }
+
+ User::LeaveIfError( iCodec->Reset() ) ;
+
+ iInternalInputBuffer = new( ELeave ) TUint8[KAMRWBMINOutBufLength];
+ if ( !iInternalInputBuffer )
+ {
+ PRINT_ERR( "internal input buffer creation is failed" );
+ User::Leave( KErrNoMemory );
+ }
+
+ iInternalOutputBuffer = new( ELeave ) TUint8[KAMRWBMINOutBufLength];
+ if ( !iInternalOutputBuffer )
+ {
+ PRINT_ERR( "internal output buffer creation is failed" );
+ User::Leave( KErrNoMemory );
+ }
+
+ PRINT_EXIT;
+ }
+
+//----------------------------------------------------------------------------
+// Updates the result of the processing
+//----------------------------------------------------------------------------
+//
+TCodecProcessResult CAriAmrWbDecMmfCodec::Result(
+ TCodecProcessResult::TCodecProcessResultStatus aStatus,
+ TInt aSrcBytesConsumed, TInt aDstBytesAdded )
+
+ {
+ PRINT_ENTRY;
+ TCodecProcessResult result;
+ // update destination bytes
+ result.iDstBytesAdded = aDstBytesAdded;
+ // update source bytes
+ result.iSrcBytesProcessed = aSrcBytesConsumed;
+
+ // update status
+ switch ( aStatus )
+ {
+ case TCodecProcessResult::EProcessComplete:
+ result.iStatus = TCodecProcessResult::EProcessComplete;
+ break;
+ case TCodecProcessResult::EProcessIncomplete:
+ result.iStatus = TCodecProcessResult::EProcessIncomplete;
+ break;
+ case TCodecProcessResult::EEndOfData:
+ result.iStatus = TCodecProcessResult::EEndOfData;
+ break;
+ case TCodecProcessResult::EDstNotFilled:
+ result.iStatus = TCodecProcessResult::EDstNotFilled;
+ break;
+ case TCodecProcessResult::EProcessError:
+ result.iStatus = TCodecProcessResult::EProcessError;
+ break;
+ default:
+ result.iStatus = TCodecProcessResult::EProcessError;
+ break;
+ }
+ PRINT_MSG( LEVEL_HIGH, ( "result.iSrcBytesProcessed = %d",
+ result.iSrcBytesProcessed ) );
+ PRINT_MSG( LEVEL_HIGH, ( "result.iDstBytesAdded = %d",
+ result.iDstBytesAdded ) );
+ PRINT_MSG( LEVEL_HIGH, ( "result.iStatus = %d",
+ result.iStatus ) );
+ PRINT_EXIT;
+ return result;
+ }
+
+//----------------------------------------------------------------------------
+// Copy the bytes to destination buffer from the internal buffer
+// first checks whether the number of bytes to be copied is lesser of the
+// destination buffer reamining bytes and internal input internal remaining
+// remaining bytes and then copies that many bytes.
+//----------------------------------------------------------------------------
+//
+ TInt CAriAmrWbDecMmfCodec::CopyToDstBuffer( CMMFDataBuffer* aDst,
+ TInt &aDstBytesConsumed )
+ {
+ PRINT_ENTRY;
+ TInt numberOfBytesToBeCopied;
+ const TInt dstMaxLen = aDst->Data().MaxLength();
+ TUint8* dstPtr = const_cast<TUint8*>( aDst->Data().Ptr() );
+ TInt dstBufferPos = aDst->Position();
+
+ // destination buffer remaining bytes
+ TInt dstBufferRemainingBytes = dstMaxLen
+ - dstBufferPos
+ - aDstBytesConsumed;
+ // internal output buffer remaining bytes
+ TInt internalOutputBufferRemainingBytes =
+ iInternalOutputBufferResidueLen
+ - iInternalOutputBufferPos;
+
+ if ( internalOutputBufferRemainingBytes > dstBufferRemainingBytes )
+ {
+ numberOfBytesToBeCopied = dstBufferRemainingBytes;
+ }
+ else
+ {
+ numberOfBytesToBeCopied = internalOutputBufferRemainingBytes;
+ iInternalOutputBufferResidueLen = 0;
+ }
+
+ // copy data to destination buffer from internal ouput buffer
+ Mem::Copy( dstPtr + dstBufferPos + aDstBytesConsumed,
+ iInternalOutputBuffer + iInternalOutputBufferPos,
+ numberOfBytesToBeCopied );
+
+ // update internal output buffer position
+ if( iInternalOutputBufferResidueLen )
+ {
+ iInternalOutputBufferPos += dstBufferRemainingBytes;
+ }
+ else
+ {
+ iInternalOutputBufferPos = 0;
+ }
+
+ aDstBytesConsumed += numberOfBytesToBeCopied;
+ aDst->Data().SetLength( dstBufferPos + aDstBytesConsumed );
+ PRINT_EXIT;
+ return numberOfBytesToBeCopied;
+ }
+
+//---------------------------------------------------------------------------
+// Copy the bytes from the source buffer to the internal input buffer.
+// first it checks number of bytes to be copied is lesser of the source buffer
+// remaining bytes or internal input buffer remaining bytes and then copies
+// that many bytes.
+//---------------------------------------------------------------------------
+//
+ TInt CAriAmrWbDecMmfCodec::CopyFromSrcBuffer( const CMMFDataBuffer* aSrc,
+ TInt &aSrcBytesConsumed )
+ {
+ PRINT_ENTRY;
+ TInt numberOfBytesToBeCopied;
+ TUint8* srcPtr = const_cast <TUint8*>( aSrc->Data().Ptr() );
+ TInt srcBufferLen = aSrc->Data().Length();
+ TInt srcBufferPos = aSrc->Position();
+
+ // calculate the source buffer remaining bytes
+ TInt srcBufferRemainingBytes = srcBufferLen - srcBufferPos
+ - aSrcBytesConsumed;
+
+ // calculate internal input buffer remaining bytes
+ TInt internalInputBufferRemaingBytes = KAMRWBMINOutBufLength
+ - iInternalInputBufferResidueLen;
+
+ if ( internalInputBufferRemaingBytes > srcBufferRemainingBytes )
+ {
+ numberOfBytesToBeCopied = srcBufferRemainingBytes;
+ }
+ else
+ {
+ numberOfBytesToBeCopied = internalInputBufferRemaingBytes;
+ }
+
+ // copy data from source buffer to internal input buffer
+ Mem::Copy( iInternalInputBuffer + iInternalInputBufferResidueLen,
+ srcPtr + srcBufferPos + aSrcBytesConsumed,
+ numberOfBytesToBeCopied );
+
+ // update internal input buffer residue length
+ iInternalInputBufferResidueLen += numberOfBytesToBeCopied;
+ aSrcBytesConsumed += numberOfBytesToBeCopied;
+ PRINT_EXIT;
+ return numberOfBytesToBeCopied;
+ }
+//---------------------------------------------------------------------------
+// Moves the data of the internal input buffer to the start position
+//---------------------------------------------------------------------------
+//
+void CAriAmrWbDecMmfCodec::ShiftData( TInt aFromPos, TInt aToPos )
+ {
+ PRINT_ENTRY;
+ for ( TInt i = aToPos; i < ( iInternalInputBufferResidueLen - aFromPos );
+ i++ )
+ {
+ iInternalInputBuffer[i] = iInternalInputBuffer[i + aFromPos];
+ }
+ iInternalInputBufferResidueLen -= aFromPos;
+ PRINT_EXIT;
+ }
+
+// __________________________________________________________________________
+// ********************* ECOM Instantiation *********************
+// __________________________________________________________________________
+
+const TImplementationProxy ImplementationTable[] =
+ {
+ IMPLEMENTATION_PROXY_ENTRY(KUidARIAMRWBDecImplUid,
+ CAriAmrWbDecMmfCodec::NewL)
+ };
+
+EXPORT_C const TImplementationProxy*
+ ImplementationGroupProxy( TInt& aTableCount )
+ {
+ PRINT_ENTRY;
+ aTableCount = sizeof( ImplementationTable) /
+ sizeof(TImplementationProxy );
+ PRINT_EXIT;
+ return ImplementationTable;
+ }