// Helper function to create and zero fill a buffer of specified size
CMMFDataBuffer* CMMFRawFormatRead::CreateSourceBufferOfSizeL(TUint aSize)
{
//needs to create source buffer
CMMFDataBuffer* buffer = CMMFDataBuffer::NewL(aSize);
buffer->Data().FillZ(aSize);
return buffer;
}
// -----------------------------------------------------------------------------
// CMccUlDataPath::BufferFilledL
// Databuffer filled callback
// -----------------------------------------------------------------------------
void CMccUlDataPath::BufferFilledL( CMMFBuffer* aBuffer )
{
// Has the datapath stopped running, if so were not interested in any
// callbacks.
if( EStreaming == State() )
{
if ( !aBuffer )
{
ChangeDataPathTransferState( EEndOfData );
}
else
{
// Sink buffer is with datapath, see if there is anything to send
// to sink
IsBufferSupportedL( aBuffer );
aBuffer->SetStatus( EFull );
if ( iSinkBuffer != aBuffer )
{
CMMFDataBuffer* desBuffer = static_cast<CMMFDataBuffer*>(iSinkBuffer);
if ( (TInt) aBuffer->BufferSize() > desBuffer->Data().MaxLength() )
{
// if the buffer from source is too big, ignore it
// ask next one
__SUBCONTROLLER( "CMccUlDataPath::BufferFilledL, DATA IGNORED" )
__SUBCONTROLLER_INT1( "CMccUlDataPath::BufferFilledL, source", aBuffer->BufferSize() )
__SUBCONTROLLER_INT1( "CMccUlDataPath::BufferFilledL, dest", desBuffer->Data().MaxLength() )
iSinkBuffer->SetStatus( EAvailable );
aBuffer->SetStatus( EAvailable );
ChangeDataPathTransferState( ENeedSourceData );
return;
}
else
{
CopyBuffer( iSinkBuffer, aBuffer );
}
}
if( !aBuffer->BufferSize() || aBuffer->LastBuffer() )
{
//ignore zero length buffer request for next buffer from AudioInput
iSinkBuffer->SetStatus( EAvailable );
ChangeDataPathTransferState( ENeedSourceData, ETrue );
}
else
{
ChangeDataPathTransferState( ESendDataToSink );
}
}
}
else
{
User::Leave( KErrNotReady );
}
}
/** Verify CMMFDataBuffer buffer length setting
* Use case: N/A
* @test Req. under test REQ172.7.25
*/
TVerdict CTestStep_MMF_BASECL_U_0005::DoTestStepL( void )
{
TVerdict verdict = EPass;
CMMFDataBuffer* descriptorBuffer = CMMFDataBuffer::NewL(KMMFTestBufferSize); //create descriptor buffer
descriptorBuffer->Data().SetLength(KMMFTestBufferLengthSize);
if (descriptorBuffer->BufferSize() != KMMFTestBufferLengthSize) verdict = EFail;
delete descriptorBuffer;
return verdict;
}
/*
@see CMMFHwDevice::ThisHwBufferEmptied()
*/
TInt CMdfHwDeviceAdapter::ThisHwBufferEmptied(CMMFBuffer& /*aEmptyBufferPtr*/)
{
if (iOutputBuffer->LastBuffer())
{
CMMFDataBuffer* buffer = static_cast <CMMFDataBuffer*> (iOutputBuffer);
buffer->Data().SetLength(0);
iHwDeviceObserver->EmptyThisHwBuffer(*iOutputBuffer);
}
else
{
iCodecOutputPort->MopReadData(*iOutputBuffer);
}
return KErrNone;
}
void UT_CAmrPayloadDecoder::UT_CAmrPayloadDecoder_DecodePayloadL( )
{
CMMFDataBuffer* buf = CMMFDataBuffer::NewL( 50 );
CleanupStack::PushL(buf);
iDec->SetPayloadBuffer( buf->Data() );
TUint32 ts(2);
TUint32 tsInc( 5 );
iDec->DecodePayload( ts, tsInc );
CleanupStack::Pop(buf);
delete buf;
}
/** Verify CMMFBuffer timestamping
* Use case: N/A
* @test Req. under test REQ172.7.25
*/
TVerdict CTestStep_MMF_BASECL_U_0007::DoTestStepL( void )
{
TVerdict verdict = EPass;
const TInt KMMFTestTime = 1234567890;
CMMFDataBuffer* descriptorBuffer = CMMFDataBuffer::NewL(); //create descriptor buffer
//check that the initial time to play is 0
if (descriptorBuffer->TimeToPlay() != TTimeIntervalMicroSeconds(0)) verdict = EFail;
//assign a timestamp and check it is set correctly
descriptorBuffer->SetTimeToPlay(TTimeIntervalMicroSeconds(KMMFTestTime));
if (descriptorBuffer->TimeToPlay() != TTimeIntervalMicroSeconds(KMMFTestTime)) verdict = EFail;
delete descriptorBuffer;
return verdict;
}
/** Verify CMMFBuffer buffer stats
* Use case: N/A
* @test Req. under test REQ172.7.25
*/
TVerdict CTestStep_MMF_BASECL_U_0006::DoTestStepL( void )
{
TVerdict verdict = EPass;
CMMFDataBuffer* descriptorBuffer = CMMFDataBuffer::NewL(); //create descriptor buffer
//check that the buffer is initially available
if (descriptorBuffer->Status() != EAvailable) verdict = EFail;
//check we can write to the status - onlt try one option assume if one does the others do -since this
//is an enumeration this is a reasonable assumption
descriptorBuffer->SetStatus(EFull);
if (descriptorBuffer->Status() != EFull) verdict = EFail;
delete descriptorBuffer;
return verdict;
}
// ---------------------------------------------------------------------------
// CDTMFPayloadFormatWrite::DeliverPacketL
// Prepare the RTP packet header and deliver the packet to the datasink.
// ---------------------------------------------------------------------------
//
void CDTMFPayloadFormatWrite::DeliverPacketL( CMMFDataBuffer& aPayload,
TBool aMarkerBit )
{
DP_DTMF_WRITE4(
_L("CDTMFPayloadFormatWrite::DeliverPacketL - TSTAMP: %u, TDUR: %d, tick = %u"),
TUint32( aPayload.TimeToPlay().Int64() ), iToneDuration,
User::NTickCount() );
if ( KSignalOutbandDtmf == iGenerationMode )
{
// Set the marker bit if it is very first packet.
if ( aMarkerBit )
{
iRtpSendHeader.iMarker = 1;
}
else
{
iRtpSendHeader.iMarker = 0;
}
// Construct RTP header.
if ( EGenRedUsed == iCInfo.iAlgoUsed )
{
iRtpSendHeader.iPayloadType = iCInfo.iRedundantPayload;
}
else
{
iRtpSendHeader.iPayloadType = iCInfo.iPayloadType;
}
// Timestamp must be updated before coming here
iRtpSendHeader.iTimestamp = TUint32( aPayload.TimeToPlay().Int64() );
// Deliver the packet
iRtpDataSink->EmptyBufferL( &aPayload, this,
TMediaId( KUidMediaTypeAudio ), iRtpSendHeader );
// Do not reset payload buffer because update packets
// are send based on same buffer.
}
else
{
DP_DTMF_WRITE( _L("CDTMFPayloadFormatWrite::DeliverPacketL - INBAND TONE") );
}
}
/**
*
* PrintComparisonDataL
* @param aCodedData the coded data buffer
* @param aRefCodedData the reference coded data buffer
*
*/
void CMMFDataGenerator::PrintComparisonDataL( CMMFDataBuffer& aCodedData, CMMFDataBuffer& aRefCodedData )
{
//[precondition reference coded data is equal in size or longer than coded data ]
if( aRefCodedData.Data().Length() < aCodedData.Data().Length() )
{
//[coded data is longer than reference data]
// RDebug::Print(_L("Coded Data is longer than refernce data")); Commented under DEF105143
User::Leave( KErrCorrupt );
}
TUint8* ptr1 = CONST_CAST(TUint8*, aCodedData.Data().Ptr());
TUint8* ptr2 = CONST_CAST(TUint8*, aRefCodedData.Data().Ptr());
TInt length = aCodedData.Data().Length();
//[ now print the results for comparison ]
for( TInt i = 0; i < length; i++ )
{
RDebug::Print( _L("difference: %d, coded: %d, RefCoded: %d"), (*ptr1-*ptr2), *ptr1++, *ptr2++ );
}
}
void CPlayAudioFile::ReadNextBuffer(CMMFBuffer& aHwDataBuffer)
{
TBool finished = EFalse;
TInt length = iSourceFile->Size();
if (iSourceFilePos < length)
{
TInt size = length - iSourceFilePos;
CMMFDataBuffer* dataBuffer = static_cast<CMMFDataBuffer*>(&aHwDataBuffer);
if (size > dataBuffer->Data().MaxLength())
{
size = dataBuffer->Data().MaxLength();
}
else
{
dataBuffer->SetLastBuffer(ETrue);
finished = ETrue;
}
dataBuffer->Data().SetLength(size);
Mem::Copy((TAny*)dataBuffer->Data().Ptr(), (TAny*)iSourceFile->Mid(iSourceFilePos).Ptr(), size);
iSourceFilePos += size;
}
iHwDevice->ThisHwBufferFilled(aHwDataBuffer);
if (finished)
{
SetState(EHwDeviceAllowToComplete);
}
}
/**
Fills the aBuffer with audio data depends on interleaved or not.
@param aBuffer
*/
void CAviReader::FillAudioBufferL(CMMFBuffer* aBuffer)
{
if (!aBuffer)
{
User::Leave(KErrArgument);
}
iBufferFromDevSound = aBuffer;
iAudioRequestMade = ETrue;
if (iMainHeader.iFlags == KAVIF_ISINTERLEAVED)
{
//Here Audio and Video data are interleaved in the form of REc lists.
if (!iReadRequestMade)
{
//Read request for REC list is not yet made. So read the REC list into the sourcebuffer.
ReadNextFrameL(TUid::Null(), iSourcePos);
iReadRequestMade = ETrue;
}
else if (iReadCompleted)
{
//audio frame is already read into the audio buffer
//copy the data from the audio buffer to devsound buffer.
CMMFDataBuffer* bufferFromSink = static_cast<CMMFDataBuffer*>(aBuffer);
bufferFromSink->Data().Copy(iAudioBuffer->Data());
ReadComplete();
}
}
else
{
if (iAudioBuffer)
{
BufferFilledL(iAudioBuffer);
}
else
{
//non-interleaved
ReadNextFrameL(KUidMediaTypeAudio, iAudioPos);
}
}
}
void UT_CG729PayloadFormatRead::UT_CG729PayloadFormatRead_DoBitUnPackingL()
{
if ( !iAlloc )
{
_LIT( KData, "dummy");
TBool comfortNoise = EFalse;
HBufC8* sourceBuf = HBufC8::NewL( 6 );
CleanupStack::PushL(sourceBuf);
TPtr8 ptr = sourceBuf->Des();
ptr.Append( KData );
CMMFDataBuffer* destBuf = CMMFDataBuffer::NewL( KG729CodecDecBufSize );
TDes8& buf = destBuf->Data(); // cleanup stackiin sourceBuf ainakin
EUNIT_ASSERT_EQUALS( iRead->DoBitUnPacking( *sourceBuf, buf, comfortNoise ), KErrNone );
buf.Zero();
CleanupStack::Pop(sourceBuf);
delete destBuf;
delete sourceBuf;
}
else
{
_LIT( KData, "dummy");
TBool comfortNoise = EFalse;
HBufC8* sourceBuf = NULL;
HBufC8* destBuf = HBufC8::NewL( 6 );
TPtr8 ptr = destBuf->Des();
ptr.Append( KData );
EUNIT_ASSERT_EQUALS( iRead->DoBitUnPacking( *sourceBuf, ptr, comfortNoise ), KErrArgument );
delete destBuf;
}
}
void UT_CDTMFPayloadFormatRead::UT_CDTMFPayloadFormatRead_BufferFilledLL()
{
TMccCodecInfoBuffer buf( iCodec );
iRead->ConfigurePayloadFormatL( buf );
iRead->FillSourceBufferL( );
iHeaderInfo.iPayloadType = 102;
iRead->iCInfo.iPayloadType = 102;
CMMFDataBuffer* buffer = CMMFDataBuffer::NewL( KDTMFDefaultPayloadSize );
CleanupStack::PushL( buffer );
buffer->Data().FillZ( KDTMFDefaultPayloadSize );
iRead->DataBufferFilledL( buffer, iHeaderInfo );
CleanupStack::PopAndDestroy( buffer );
buffer = NULL;
buffer = CMMFDataBuffer::NewL( 0 );
CleanupStack::PushL( buffer );
iRead->DataBufferFilledL( buffer, iHeaderInfo );
CleanupStack::PopAndDestroy( buffer );
}
/**
*
* BuffersStatus
* @param source buffer containing the data to be coded
* @param destination buffer containing the coded data
* @return TBool EFalse indicates bad buffers
*
**/
TBool CMMFPcm16ToImaAdpcmCodec::BuffersStatus( const CMMFDataBuffer* source, const CMMFDataBuffer* destination )
{
TBool status = EFalse;
//[ demand source and destination positions are zero ]
CMMFDataBuffer* pDst = const_cast<CMMFDataBuffer*>( destination );
if( source->Position() || destination->Position() )
{
return status;
}
//[ Have we got full buffers ]
TInt sourceBuffers = source->Data().Length()/KSourceFrameSize;
TInt destBuffers = (pDst->Data().MaxLength())/KCodedFrameSize;
if( sourceBuffers <= destBuffers ) // the sink can process the source
{
return ETrue; // note this precondition has been weakened in line with other codecs
} // such that it can process partially full buffers
// ie you can if you wish use larger buffers than needed and only partially
// fill them. We do however expect all the input to be processed.
return status;
}
/**
*
* ProcessBuffers
* @param aSource
* @param aDestination
* @param aResult
* all we have to do is find out how many source frames there
* are to process and process them
* finally returning process complete and fillin the status of the result
*
**/
void CMMFPcm16ToImaAdpcmCodec::ProcessBuffers(const CMMFDataBuffer& aSource, CMMFDataBuffer& aDestination, CMMFSwCodec::TCodecProcessResult& aResult )
{
//[ calculate how many full buffers are to be processed ]
const TUint srcLen = aSource.Data().Length();
TInt numFullSrcFrames = srcLen/KSourceFrameSize;
TUint8* pSrc = const_cast<TUint8*>(aSource.Data().Ptr());
TUint8* pDst = const_cast<TUint8*>(aDestination.Data().Ptr());
TInt dstBytesAdded = 0;
// calculate number of pcm samples per source frame
const TInt KSamplesPerFrame = KSourceFrameSize/(sizeof(TInt16));
//[ convert all the buffers ]
for( TInt count = 0; count < numFullSrcFrames; count++ )
{
i16PcmToImaAdpcm.Convert(pSrc, pDst, KSamplesPerFrame );
pSrc += KSourceFrameSize;
pDst += KCodedFrameSize;
dstBytesAdded += KCodedFrameSize;
}
aResult.iSrcBytesProcessed = numFullSrcFrames*KSourceFrameSize;
aResult.iDstBytesAdded = dstBytesAdded;
aDestination.Data().SetLength( aResult.iDstBytesAdded);
}
void UT_CG729PayloadFormatRead::UT_CG729PayloadFormatRead_BufferFilledLL( )
{
TRtpRecvHeader test;
test.iPayloadType = 13;
if ( !iAlloc )
{
CMMFBuffer* buf = NULL;
EUNIT_ASSERT_SPECIFIC_LEAVE( iRead->DataBufferFilledL( buf, test ), KErrArgument );
CMMFDataBuffer* buffi = CMMFDataBuffer::NewL( 150 );
buf = buffi;
CleanupStack::PushL( buf );
iRtpDataSourceStub->FillBufferL( buf, iConsumer, KUidMediaTypeAudio );
EUNIT_ASSERT_NO_LEAVE( iRead->DataBufferFilledL( iRead->iSourceBuffer, test ) );
buffi->Data().Append( _L("12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890" ));
EUNIT_ASSERT_NO_LEAVE( iRead->DataBufferFilledL( iRead->iSourceBuffer, test ) );
CleanupStack::PopAndDestroy( buf );
}
else
{
CMMFBuffer* buf = NULL;
EUNIT_ASSERT_SPECIFIC_LEAVE( iRead->DataBufferFilledL( buf, test ), KErrArgument );
CMMFDataBuffer* buffi = CMMFDataBuffer::NewL( 150 );
buf = buffi;
CleanupStack::PushL( buf );
iRtpDataSourceStub->FillBufferL( buf, iConsumer, KUidMediaTypeAudio );
EUNIT_ASSERT_NO_LEAVE( iRead->DataBufferFilledL( iRead->iSourceBuffer, test ) );
buffi->Data().Append( _L("12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890" ));
EUNIT_ASSERT_NO_LEAVE( iRead->DataBufferFilledL( iRead->iSourceBuffer, test ) );
CleanupStack::PopAndDestroy( buf );
}
}
// -----------------------------------------------------------------------------
// CG711PayloadFormatRead::FillSinkBuffer
// Fill SinkBuffer.
// -----------------------------------------------------------------------------
//
void CG711PayloadFormatRead::FillSinkBufferL()
{
DP_G711_READ( "CG711PayloadFormatRead::FillSinkBuffer()" );
CMMFDataBuffer* curFrameBuffer = NULL;
if ( EBufferOne == iCurrentBuffer )
{
curFrameBuffer = iFrameBufferOne;
}
else
{
curFrameBuffer = iFrameBufferTwo;
}
TDes8& curFrameData( curFrameBuffer->Data() );
curFrameData.SetLength( KVoIPHeaderLength );
// Put next frame decoded from RTP payload to the framebuffer
iBufferToReadExists = GetNextFrame( curFrameData );
// G.711 Gwc expects 2 bytes for dtx-decision
if ( iCnFrame )
{
DP_G711_READ( "CG711PayloadFormatRead::FillSinkBufferL add dtx-header" );
curFrameData[0] = KVoIPCNFrame;
curFrameData[1] = 0;
}
else
{
DP_G711_READ( "CG711PayloadFormatRead::FillSinkBufferL add voice-header" );
curFrameData[0] = KVoIPAudioFrame;
curFrameData[1] = 0;
}
curFrameBuffer->SetFrameNumber( iRecvHeader.iTimestamp + ( ( iFrameIndex - 1 )
* TUint( iCInfo.iHwFrameTime * KDefaultSampleRateInkHz ) ) );
DP_G711_READ2( "CG711PayloadFormatRead::FillSinkBuffer - FRAMENUM: %u",
curFrameBuffer->FrameNumber() );
const TInt dataLen( ( iCInfo.iHwFrameTime * KBitsPerByte )
+ KVoIPHeaderLength );
curFrameData.SetLength( dataLen );
curFrameBuffer->SetStatus( EFull );
DP_G711_READ2( "CG711PayloadFormatRead: Filled framebuffer with buf. size: %d",
curFrameBuffer->BufferSize() );
iStateMachine->ChangeState( EEmptyDataToSink );
DP_G711_READ( "CG711PayloadFormatRead::FillSinkBuffer - DONE" );
}
/** Verify CMMFBuffer buffer framenumbers
* Use case: N/A
* @test Req. under test REQ172.7.25
*/
TVerdict CTestStep_MMF_BASECL_U_0008::DoTestStepL( void )
{
TVerdict verdict = EPass;
CMMFDataBuffer* descriptorBuffer = CMMFDataBuffer::NewL(); //create descriptor buffer
//check initial frame number is 0
if (descriptorBuffer->FrameNumber() != 0) verdict = EFail;
//check setting a framenumber
descriptorBuffer->SetFrameNumber(KMMFTestFrameNumber);
if (descriptorBuffer->FrameNumber() != KMMFTestFrameNumber) verdict = EFail;
//check incrementing the framenumber
descriptorBuffer->NextFrame();
if (descriptorBuffer->FrameNumber() != (KMMFTestFrameNumber+1)) verdict = EFail;
delete descriptorBuffer;
return verdict;
}
// --------------------------------------------------------------------------
// From class CMMFCodec.
// This function is used to encode the given source and fill the destination
// buffer with the encode 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 is
// 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 CAriAacLCEncMmfCodec::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;
TInt internalInputBufferLen = 0;
// temporary variable to use for copying the sorce or destination data
TInt numberOfBytesCopied;
/**
* 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();
PRINT_MSG( LEVEL_HIGH, ( "Src Buffer Pos: %d",srcBufferPos ) );
PRINT_MSG( LEVEL_HIGH, ( "Dst Buffer Pos: %d",dstBufferPos ) );
PRINT_MSG( LEVEL_HIGH, ( "Residue in internal output buffer: %d",
iInternalOutputBufferResidueLen - iInternalOutputBufferPos ) );
PRINT_MSG( LEVEL_HIGH, ( "Residue in internal input buffer: %d",
iInternalInputBufferResidueLen ) );
TInt srcBufferRemainingBytes = 0;
srcBufferRemainingBytes = srcBufferLen - srcBufferPos -
totalSrcBytesCopied;
TInt totRemainingSrc = srcBufferRemainingBytes +
iInternalInputBufferResidueLen;
if ( ( iInternalOutputBufferResidueLen - iInternalOutputBufferPos == 0 )
&& ( totRemainingSrc < iSrclenToProcess ) && ( lastFrame ) )
{
totalSrcBytesCopied = 0;
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
/**
* 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 ) )
{
totalSrcBytesCopied = 0;
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
iInternalOutputBufferPos = 0;
iInternalOutputBufferResidueLen = 0;
}
}
TInt dstBufferRemainingBytes = 0;
dstBufferRemainingBytes = dstMaxLen - dstBufferPos - totalDstBytesAdded;
if ( dstBufferRemainingBytes == 0 )
{
PRINT_EXIT;
return Result( TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
//generate header for ADIF and Raw encoded formats
if ( !iHeaderGenerated )
{
if ( ( iParam.iOutputFormat == EFormatADIF ) ||
( iParam.iOutputFormat == EFormatRaw ) )
{
TInt retval = KErrNone;
TInt headerLen = KMinDstLen;
retval = iCodec->GetHeader( iInternalOutputBuffer,headerLen );
/**
* Fill Destination Buffer
*/
iInternalOutputBufferResidueLen = headerLen;
numberOfBytesCopied = CopyToDstBuffer( dst, totalDstBytesAdded );
dstBufferRemainingBytes -= numberOfBytesCopied;
iHeaderGenerated = ETrue;
if ( ( iInternalOutputBufferResidueLen -
iInternalOutputBufferPos > 0 ) ||
dstBufferRemainingBytes == 0 )
{
totalSrcBytesCopied = 0;
PRINT_EXIT;
return Result(
TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
else
{
iHeaderGenerated = ETrue;
}
}
TInt newSrcCopied = 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 ( ( iSrclenToProcess - iInternalInputBufferResidueLen > 0 ) &&
( srcBufferLen - srcBufferPos > 0 ) )
{
numberOfBytesCopied = CopyFromSrcBuffer( src, totalSrcBytesCopied );
newSrcCopied = numberOfBytesCopied;
}
if ( iSrclenToProcess > iInternalInputBufferResidueLen )
{
if ( !lastFrame )
{
PRINT_EXIT;
return Result( TCodecProcessResult::EDstNotFilled,
srcBufferLen - srcBufferPos, totalDstBytesAdded );
}
else
{
totalSrcBytesCopied = 0;
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
srcBufferRemainingBytes = srcBufferLen - srcBufferPos -
totalSrcBytesCopied;
if ( lastFrame && ( ( iSrclenToProcess > iInternalInputBufferResidueLen )
&& ( iSrclenToProcess > srcBufferRemainingBytes ) )
&& ( iInternalOutputBufferResidueLen -
iInternalOutputBufferPos == 0 ) )
{
totalSrcBytesCopied = 0;
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
if ( iInternalOutputBufferResidueLen - iInternalOutputBufferPos == 0 )
{
iInternalOutputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
}
/**
* process the src buffer till destination buffer or source buffer or
* both buffers are exhausted.
*/
do
{
srcBufferRemainingBytes = srcBufferLen - srcBufferPos -
totalSrcBytesCopied;
dstBufferRemainingBytes = dstMaxLen - dstBufferPos -
totalDstBytesAdded;
TInt internalInputBufferPos = 0;
/**
* initialize the variables like srcUsed and dstLen accordingly.
* call Encode.
*/
TInt srcUsed = iSrclenToProcess;
TInt dstLen = KMinDstLen;
TInt16* tempIn = NULL;
tempIn = ( TInt16* ) ( ( iInternalInputBuffer +
internalInputBufferPos ) );
TInt error = iCodec->Encode( tempIn, srcUsed, iInternalOutputBuffer,
dstLen );
if ( error != KErrNone )
{
iInternalInputBufferResidueLen = 0;
totalSrcBytesCopied = srcBufferLen;
PRINT_ERR( error );
return Result(
TCodecProcessResult::EProcessError,
totalSrcBytesCopied, totalDstBytesAdded + dstBufferPos );
}
/**
* Fill Destination Buffer
*/
PRINT_MSG( LEVEL_HIGH, ( "dstLen: %d",dstLen ) );
iInternalOutputBufferResidueLen = dstLen;
numberOfBytesCopied = CopyToDstBuffer( dst, totalDstBytesAdded );
dstBufferRemainingBytes -= numberOfBytesCopied;
/***
* Fill Source Buffer if FillBuffer flag is true
*/
internalInputBufferPos += srcUsed ;
ShiftData( internalInputBufferPos, 0 );
if ( iFillBuffer )
{
numberOfBytesCopied = CopyFromSrcBuffer( src,
totalSrcBytesCopied );
srcBufferRemainingBytes -= numberOfBytesCopied;
}
/***
* check four conditions if else for src and if else for dst
*/
// src has available bytes
TInt totSrcUsed = 0;
if ( ( iSrclenToProcess > srcBufferRemainingBytes ) &&
( iSrclenToProcess > iInternalInputBufferResidueLen ) &&
( lastFrame ) )
{
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
if ( srcBufferRemainingBytes > 0 || iInternalInputBufferResidueLen >=
iSrclenToProcess )
{
if ( dstBufferRemainingBytes > 0 )
{
if ( !iFillBuffer )
{
totSrcUsed = srcBufferPos + srcUsed;
totalSrcBytesCopied = newSrcCopied;
PRINT_EXIT;
return Result(
TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
else
{
PRINT_EXIT;
return Result(
TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
else
{
if ( dstBufferRemainingBytes > 0 )
{
if ( lastFrame )
{
if ( iInternalInputBufferResidueLen >= iSrclenToProcess )
{
if ( !iFillBuffer )
{
totSrcUsed = srcBufferPos + srcUsed;
totalSrcBytesCopied = newSrcCopied;
PRINT_EXIT;
return Result(
TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
else
{
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
else
{
PRINT_EXIT;
return Result( TCodecProcessResult::EDstNotFilled,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
else
{
if ( iInternalOutputBufferResidueLen -
iInternalOutputBufferPos > 0 )
{
PRINT_EXIT;
return Result( TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
else
{
if( lastFrame && (iInternalInputBufferResidueLen == 0 ) )
{
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
else
{
PRINT_EXIT;
return Result(
TCodecProcessResult::EProcessComplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
}
}
}while ( 1 );
}
/**
Fills the buffer with audio/Video data and informs the observer
@param aBuffer
*/
void CAviReader::BufferFilledL(CMMFBuffer* aBuffer)
{
if (!aBuffer)
{
User::Leave(KErrArgument);
}
if (aBuffer == iVideoBuffer)
{
//callback for video read when the file is not interleaved(No REC lists)
iBufferFromDevVideo->iData.Copy(iVideoBuffer->Data());
iObserver.VideoBufferFilled(iBufferFromDevVideo);
}
else if (aBuffer == iAudioBuffer)
{
//callback for audio read when the file is not interleaved(No REC lists)
CMMFDataBuffer* bufferFromSink = static_cast<CMMFDataBuffer*>(iBufferFromDevSound);
TInt sinkBufLen = bufferFromSink->Data().MaxSize();
TInt audBufLen = iAudioBuffer->Data().Length();
if (sinkBufLen < audBufLen)
{
bufferFromSink->Data().Copy(iAudioBuffer->Data().Ptr(), sinkBufLen);
CMMFDescriptorBuffer* tempBuffer = CMMFDescriptorBuffer::NewL(audBufLen - sinkBufLen);
tempBuffer->Data().Copy(iAudioBuffer->Data().Mid(sinkBufLen));
delete iAudioBuffer;
iAudioBuffer = tempBuffer;
}
else
{
// DEF113319 - call SetLastBuffer when sending last audio chunk
TInt position = 0;
position = (iMainHeader.iFlags == KAVIF_ISINTERLEAVED) ? iSourcePos : iAudioPos;
if(!IsAudioDataAvailableL(position))
{
bufferFromSink->SetLastBuffer(ETrue);
SetMediaEOS(KUidMediaTypeAudio);
}
bufferFromSink->Data().Copy(iAudioBuffer->Data());
delete iAudioBuffer;
iAudioBuffer = NULL;
}
iObserver.AudioBufferFilled();
}
else if (aBuffer == iSourceBuffer)//callback for REC list
{
//callback for REC list read. We need to extract video and audio chunks from the sourcebuffer
TUint8* rawform = &(iSourceBuffer->Data()[0]);
TInt desPos = 0; //position in descriptor
//Now we should be pointing to audio or video chunks
TInt bufLen = iSourceBuffer->Data().Length();
if(bufLen < 4)
{
User::Leave(KErrCorrupt);
}
rawform += 4; //skip the fourcc of REC
desPos += 4; //byte count corresponding to where rawform points to
if (bufLen - desPos < 8)
{
//if the buffer is not long enough to accomodate - chunk id and size leave
User::Leave(KErrCorrupt);
}
for (TUint8 i=0; i < iMainHeader.iStreams; i++)//we expect only 2 streams at the moment
{
if (desPos == bufLen) //caution check for the necessity of the block
{
//Sometimes we only have one stream in this list. No more data to read
break;
}
if (bufLen - desPos < 8 && i== 1)
{
//if the buffer is not long enough to accomodate - chunk id and size leave
break;
}
TUint32 dwChunkId = Read32(rawform);
rawform += 4; //Skip chunkId
desPos += 4;
TBool bAudioId = EFalse;
TBool bVideoId = EFalse;
switch (dwChunkId) //identify chunk
{
case KRiffChunkName00db:
case KRiffChunkName00dc:
case KRiffChunkName01db:
case KRiffChunkName01dc:
bVideoId = ETrue;
break;
case KRiffChunkName00wb:
case KRiffChunkName01wb:
bAudioId = ETrue;
break;
default:
User::Leave(KErrCorrupt);
}
if (!bAudioId && !bVideoId)
{
//we are supposed to get audio or video stream here. if anything else, we return KErrCorrupt
User::Leave(KErrCorrupt);
}
TUint32 dwChunkSz = Read32(rawform);
if (dwChunkSz > bufLen - desPos)
{
User::Leave(KErrCorrupt); //caution - check
}
rawform += 4; //Skip chunkSize
desPos += 4;
TPtr8 temp = iSourceBuffer->Data().MidTPtr(desPos, dwChunkSz);
if (bVideoId)// video
{
if (iVideoRequestMade)
{
//if video request is already made we can copy the data directly into the devvideo buffer
//instead of iVideoBuffer
iBufferFromDevVideo->iData.Copy(temp);
}
else
{
//DevVideo request is not made. So copy the data into video buffer
delete iVideoBuffer;
iVideoBuffer = NULL;
iVideoBuffer = CMMFDescriptorBuffer::NewL(dwChunkSz);
iVideoBuffer->Data().Copy(temp);
}
}
else if (bAudioId)//audio
{
if (iAudioRequestMade)
{
//if audio request is already made, copy the data into devsound buffer
CMMFDataBuffer* bufferFromSink = static_cast<CMMFDataBuffer*>(iBufferFromDevSound);
bufferFromSink->Data().Copy(temp);
}
else
{
//DevSound request is not made. copy the audio chunk into audio buffer
delete iAudioBuffer;
iAudioBuffer = NULL;
iAudioBuffer = CMMFDescriptorBuffer::NewL(dwChunkSz);
iAudioBuffer->Data().Copy(temp);
}
}
rawform += dwChunkSz;//Skip video/audio chunk
desPos += dwChunkSz;
}
iReadCompleted = ETrue;//REC list is read
// we send the bufferfilled callbacks after both audio and video requests are made.
ReadComplete();
}
else
{
User::Leave(KErrCorrupt);
}
}
// ---------------------------------------------------------------------------
// 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 CAriHeAacDecMmfCodec::ProcessL( const CMMFBuffer& aSrc,
CMMFBuffer& aDst )
{
PRINT_ENTRY;
if ( !iConfigured )
{
PRINT_ERR( "Decoder not yet configured" );
User::Leave( KErrNotReady );
}
// 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 = 0;
TInt dstBufferRemainingBytes = 0;
/**
* 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();
PRINT_MSG( LEVEL_HIGH, ( "Src Buffer Pos: %d", srcBufferPos ) );
PRINT_MSG( LEVEL_HIGH, ( "Dst Buffer Pos: %d", dstBufferPos ) );
PRINT_MSG( LEVEL_HIGH, ( "Residue in internal output buffer: %d",
iInternalOutputBufferResidueLen - iInternalOutputBufferPos ) );
PRINT_MSG( LEVEL_HIGH, ( "Residue in internal input buffer: %d",
iInternalInputBufferResidueLen ) );
/**
* 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
{
//Decode NULL frame to handle error concealment
if ( lastFrame && ( srcBufferLen - srcBufferPos == 0 )&&
( iInternalInputBufferResidueLen == 0 && !iLastFrameDecoded ) )
{
dstBufferRemainingBytes = dstMaxLen - dstBufferPos -
totalDstBytesAdded;
if ( dstBufferRemainingBytes == 0 )
{
iInternalOutputBufferPos = 0;
iInternalOutputBufferResidueLen = 0;
totalSrcBytesCopied = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
TInt dstLen = iOutFrameSize;
DecodeLastFrame(dstLen);
iInternalOutputBufferResidueLen = dstLen;
numberOfBytesCopied =
CopyToDstBuffer( dst, totalDstBytesAdded );
totalDstBytesAdded += numberOfBytesCopied;
dstBufferRemainingBytes -= numberOfBytesCopied;
if ( ( iInternalOutputBufferResidueLen -
iInternalOutputBufferPos == 0 ) && iLastFrameDecoded )
{
totalSrcBytesCopied = 0;
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
else
{
totalSrcBytesCopied = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
iInternalOutputBufferPos = 0;
iInternalOutputBufferResidueLen = 0;
}
}
else
{
if ( lastFrame && ( srcBufferLen - srcBufferPos == 0 )&&
( iInternalInputBufferResidueLen == 0 && !iLastFrameDecoded ) )
{
TInt dstLen = iOutFrameSize;
DecodeLastFrame(dstLen);
iInternalOutputBufferResidueLen = dstLen;
numberOfBytesCopied = CopyToDstBuffer( dst, totalDstBytesAdded );
totalDstBytesAdded += numberOfBytesCopied;
dstBufferRemainingBytes -= numberOfBytesCopied;
if ( ( iInternalOutputBufferResidueLen -
iInternalOutputBufferPos == 0 ) && iLastFrameDecoded )
{
totalSrcBytesCopied = 0;
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
else
{
totalSrcBytesCopied = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
}
/**
* 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 ( ( KMinBytesInput - iInternalInputBufferResidueLen > 0 ) &&
( srcBufferLen - srcBufferPos > 0 ) )
{
numberOfBytesCopied = CopyFromSrcBuffer( src, totalSrcBytesCopied );
}
/**
* update the internal buffer length.
*/
if ( ( KMinBytesInput > iInternalInputBufferResidueLen ) &&
( !lastFrame ) )
{
PRINT_EXIT;
return Result( TCodecProcessResult::EDstNotFilled,
srcBufferLen - srcBufferPos, totalDstBytesAdded );
}
if ( iLastFrameDecoded && iInternalInputBufferResidueLen == 0 &&
iInternalOutputBufferResidueLen == 0 )
{
totalSrcBytesCopied = 0;
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
/**
* process the src buffer till destination buffer or source buffer or
* both buffers are exhausted.
*/
do
{
TInt srcBufferRemainingBytes = srcBufferLen - srcBufferPos -
totalSrcBytesCopied;
dstBufferRemainingBytes = dstMaxLen - dstBufferPos -
totalDstBytesAdded;
TInt internalInputBufferPos = 0;
/**
* initialize the variables like iSrcUsed and dstLen accordingly.
* call Decode.
*/
iSrcUsed = iInternalInputBufferResidueLen - internalInputBufferPos;
TInt dstLen = iOutFrameSize;
TInt error = iCodec->Decode(
&iInternalInputBuffer[internalInputBufferPos],
iSrcUsed, iInternalOutputBuffer, dstLen );
if ( error != 0 )
{
iInternalInputBufferResidueLen = 0;
totalSrcBytesCopied = srcBufferLen;
PRINT_ERR( error );
return Result(
TCodecProcessResult::EProcessError,
totalSrcBytesCopied, totalDstBytesAdded + dstBufferPos);
}
iFrameNum++;
PRINT_MSG( LEVEL_HIGH, ( "Frame: %d", iFrameNum ) );
PRINT_MSG( LEVEL_HIGH, ( "iSrcUsed: %d", iSrcUsed ) );
PRINT_MSG( LEVEL_HIGH, ( "dstLen: %d", dstLen ) );
/**
* Fill Destination Buffer
*/
iInternalOutputBufferResidueLen = dstLen;
numberOfBytesCopied = CopyToDstBuffer( dst, totalDstBytesAdded );
dstBufferRemainingBytes -= numberOfBytesCopied;
/**
* Fill Source Buffer
*/
internalInputBufferPos += iSrcUsed ;
ShiftData( internalInputBufferPos, 0 );
numberOfBytesCopied = CopyFromSrcBuffer( src, totalSrcBytesCopied );
srcBufferRemainingBytes -= numberOfBytesCopied;
/**
* check four conditions if else for src and if else for dst
*/
/**
* src has available bytes
*/
if ( srcBufferRemainingBytes > 0 ||
iInternalInputBufferResidueLen >= KMinBytesInput )
{
if ( dstBufferRemainingBytes == 0 )
{
PRINT_EXIT;
return Result(
TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
else
{
// dst buffer has availabe space for decoded bytes
if ( dstBufferRemainingBytes > 0 )
{
if ( lastFrame )
{
if ( iInternalInputBufferResidueLen == 0 )
{
TInt dstLen = iOutFrameSize;
DecodeLastFrame(dstLen);
iInternalOutputBufferResidueLen = dstLen;
numberOfBytesCopied =
CopyToDstBuffer( dst, totalDstBytesAdded );
totalDstBytesAdded += numberOfBytesCopied;
dstBufferRemainingBytes -= numberOfBytesCopied;
if ( ( iInternalOutputBufferResidueLen -
iInternalOutputBufferPos == 0 ) &&
iLastFrameDecoded )
{
totalSrcBytesCopied = 0;
iInternalOutputBufferResidueLen = 0;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result( TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
else
{
totalSrcBytesCopied = 0;
PRINT_EXIT;
return Result(
TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
}
else
{
PRINT_EXIT;
return Result( TCodecProcessResult::EDstNotFilled,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
else
{
if ( iInternalOutputBufferResidueLen -
iInternalOutputBufferPos > 0 )
{
PRINT_EXIT;
return Result( TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
else
{
if ( lastFrame )
{
PRINT_EXIT;
return Result(
TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
else
{
PRINT_EXIT;
return Result(
TCodecProcessResult::EProcessComplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
}
}
}while ( 1 );
}
TCodecProcessResult CAriMp3DecMmfCodec::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 ( ( KMinBytesInput - iInternalInputBufferResidueLen > 0 )
&& ( srcBufferLen - srcBufferPos > 0 ) )
{
numberOfBytesCopied = CopyFromSrcBuffer( src, totalSrcBytesCopied );
}
if ( ( KMinBytesInput > 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
{
/**
* call seeksync to find the valid fram start offset i.e syncpos.
* update internal buffer position to that offset position if it is
* success.if it is failed then there is no valid frame start in
* the available buffer. Go for new src buffer. all bytes present
* in the internal buffer are discarded.
*/
TInt syncpos;
TInt srcBufferRemainingBytes = srcBufferLen
- srcBufferPos
- totalSrcBytesCopied;
TInt dstBufferRemainingBytes = dstMaxLen
- dstBufferPos
- totalDstBytesAdded;
TInt internalInputBufferPos = 0;
if ( KErrNone != iCodec->SeekSync(
&iInternalInputBuffer[internalInputBufferPos],
( iInternalInputBufferResidueLen - internalInputBufferPos ),
syncpos ) )
{
TCodecProcessResult result = GetNewData( src, totalSrcBytesCopied,
totalDstBytesAdded );
if ( result.iStatus == TCodecProcessResult::EDstNotFilled ||
result.iStatus == TCodecProcessResult::EEndOfData )
{
return result;
}
}
else
{
syncFound = ETrue;
internalInputBufferPos += syncpos;
}
/**
* call GetFrameInfo to find whether valid frame is present in the
* availabel buffer.if it is success and framelength is 0 then
* there is no valid frame is present, discard the present buffer
* till sync position and add new buffer.
*/
if ( syncFound )
{
TInt frameLen;
TMp3FrameInfo frameInfo;
if ( KErrNone != iCodec->GetFrameInfo(
&iInternalInputBuffer[internalInputBufferPos],
( iInternalInputBufferResidueLen - internalInputBufferPos ),
frameLen, frameInfo ) )
{
PRINT_ERR( "Decoder Getframeinfo failed" );
User::Leave( KErrGeneral );
}
if ( frameLen == 0 )
{
TCodecProcessResult result = GetNewData( src,
totalSrcBytesCopied, totalDstBytesAdded );
if ( result.iStatus == TCodecProcessResult::EDstNotFilled ||
result.iStatus == TCodecProcessResult::EEndOfData )
{
return result;
}
}
/**
* if the buffer has less than framelen then fill the internal
* sorce buffer with KMinBytesInput bytes.
*/
if ( frameLen > ( iInternalInputBufferResidueLen
- internalInputBufferPos ) )
{
if( lastFrame )
{
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
PRINT_EXIT;
return Result(
TCodecProcessResult::EEndOfData,
totalSrcBytesCopied, totalDstBytesAdded );
}
ShiftData( internalInputBufferPos, 0 );
numberOfBytesCopied = CopyFromSrcBuffer( src,
totalSrcBytesCopied );
internalInputBufferPos = 0;
if ( iInternalInputBufferResidueLen < KMinBytesInput )
{
PRINT_EXIT;
return Result(
TCodecProcessResult::EDstNotFilled,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
/**
* initialize the variables like srcUsed and dstLen accordingly.
* call Decode.
*/
TInt srcUsed = iInternalInputBufferResidueLen
- internalInputBufferPos;
TInt dstLen = iOutFrameSize;
TInt error = iCodec->Decode(
&iInternalInputBuffer[internalInputBufferPos],
srcUsed, iInternalOutputBuffer, dstLen );
if ( KErrNone != error )
{
iInternalInputBufferResidueLen = 0;
PRINT_ERR( error );
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 );
}
//---------------------------------------------------------------------------
// 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 CAriAmrNbDecMmfCodec::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 ( ( KAMRNBMinOutBufLength - iInternalInputBufferResidueLen > 0 )
&& ( srcBufferLen - srcBufferPos > 0 ) )
{
numberOfBytesCopied = CopyFromSrcBuffer( src, totalSrcBytesCopied );
}
if ( ( KAMRNBMinOutBufLength > 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.
*/
TInt srcUsed = iInternalInputBufferResidueLen
- internalInputBufferPos;
TInt dstLen = KAMRNBMinOutBufLength;
TInt error =
iCodec->Decode( &iInternalInputBuffer[internalInputBufferPos],
srcUsed, ( TInt* )iInternalOutputBuffer, dstLen );
if ( KErrNone != error )
{
iInternalInputBufferResidueLen = 0;
PRINT_ERR( "Amr Nb Decoder decodes fails" );
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 );
}
