/** Verify CMMFBuffer & CMMFDescriptorBuffer positioning
* Use case: N/A
* @test Req. under test REQ172.7.25
*/
TVerdict CTestStep_MMF_BASECL_U_0009::DoTestStepL( void )
{
TVerdict verdict = EPass;
CMMFDataBuffer* descriptorBuffer = CMMFDataBuffer::NewL(KMMFTestBufferSize); //create descriptor buffer
//check initial frame number is 0
if (descriptorBuffer->Position() != 0) verdict = EFail;
//check setting a framenumber with no data size - This should keep the position to 0
//because there is no buffer size as yet!
descriptorBuffer->SetPosition(KMMFTestPosition);
if (descriptorBuffer->Position() != 0) verdict = EFail;
//check set position
descriptorBuffer->Data().SetLength((TInt)KMMFTestBufferLengthSize);
descriptorBuffer->SetPosition(KMMFTestPosition);
if (descriptorBuffer->Position() != KMMFTestPosition) verdict = EFail;
//try positioning beyond the datalength - should set position to the data length ie buffer size
descriptorBuffer->SetPosition(KMMFTestBufferLengthSize*2);
if (descriptorBuffer->Position() != descriptorBuffer->BufferSize()) 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 );
}
//---------------------------------------------------------------------------
// 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 );
}
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 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 );
}