Initial commit of Aricent codec contribution.
/*
* Copyright (c) 2009 Aricent and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Aricent - initial contribution.
*
* Contributors:
*
* Description:
* Implementation of member functions of Plugin class
* (CAriAmrNbEncMmfCodec).
*
*/
#include <ecom.h>
#include <implementationproxy.h>
#include "ariamrnbencwrapper.h"
#include "ariamrnbencmmfcodec.h"
#include "ariamrnbencmmfcodec_uid.hrh"
#include "AriPrint.h"
//Minimum bytes that contain 160 samples that has to be encoded at a time
const TUint KMinBytesInput = 320;
const TUint KMinDstLen = 32;
// --------------------------------------------------------------------------
// Two-phased constructor.
// Creates an instance of CAriAmrNbEncMmfCodec.
// Instance is not left on cleanup stack.
// --------------------------------------------------------------------------
//
CMMFCodec* CAriAmrNbEncMmfCodec::NewL()
{
PRINT_ENTRY;
CAriAmrNbEncMmfCodec* self = new ( ELeave ) CAriAmrNbEncMmfCodec();
CleanupStack::PushL( self );
self->ConstructL();
CleanupStack::Pop( self );
PRINT_EXIT;
return ( CMMFCodec* )self;
}
// --------------------------------------------------------------------------
// Destructor;Destroys the encoder instance and any internal buffers
// --------------------------------------------------------------------------
//
CAriAmrNbEncMmfCodec::~CAriAmrNbEncMmfCodec()
{
PRINT_ENTRY;
if ( iInternalInputBuffer )
{
delete iInternalInputBuffer;
iInternalInputBuffer = NULL;
}
if ( iInternalOutputBuffer )
{
delete iInternalOutputBuffer;
iInternalOutputBuffer = NULL;
}
if ( iCodec )
{
delete iCodec;
iCodec = NULL;
}
iConfigured = EFalse;
PRINT_EXIT;
}
// --------------------------------------------------------------------------
// From class CMMFCodec.
// The function sets codec configuration.
// value used for aConfigType must be KUidMmfCodecAudioSettings
// (defined in include\mmf\plugins\mmfCodecImplementationUIDs.hrh)
//
// --------------------------------------------------------------------------
//
void CAriAmrNbEncMmfCodec::ConfigureL( TUid /* aConfigType */,
const TDesC8& aParam )
{
PRINT_ENTRY;
if ( !iConfigured )
{
TInt encMode = 0;
TInt dtx = 0;
TInt offset = 0;
Mem::Copy( &encMode, aParam.Ptr() + offset, sizeof( TInt ) );
offset += sizeof(TInt);
Mem::Copy( &dtx, aParam.Ptr() + offset, sizeof( TInt ) );
offset += sizeof(TInt);
iParam.iMode = ( TInt16 )encMode;
iParam.iDtx = ( TInt16 )dtx;
PRINT_MSG( LEVEL_HIGH, ( "Mode: %d", iParam.iMode ) );
PRINT_MSG( LEVEL_HIGH, ( "DTX: %d", iParam.iDtx ) );
User::LeaveIfError( iCodec->Reset( &iParam ) );
iConfigured = ETrue;
}
PRINT_EXIT;
}
// ---------------------------------------------------------------------------
// From class CMMFCodec.
// This function is used to flush out status information when a
// reposition occurs.
// This is used if the codec requires resetting prior to use.
// ---------------------------------------------------------------------------
//
void CAriAmrNbEncMmfCodec::ResetL()
{
PRINT_ENTRY;
User::LeaveIfError( iCodec->Reset( &iParam ) );
PRINT_EXIT;
}
// --------------------------------------------------------------------------
// 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 CAriAmrNbEncMmfCodec::ProcessL( const CMMFBuffer& aSrc,
CMMFBuffer& aDst )
{
PRINT_ENTRY;
// total encoded 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;
TInt srcBufferRemainingBytes = 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
{
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;
}
}
/**
* 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 );
}
if ( ( iSrclenToProcess > iInternalInputBufferResidueLen ) &&
( !lastFrame ) )
{
PRINT_EXIT;
return Result( TCodecProcessResult::EDstNotFilled,
srcBufferLen - srcBufferPos, totalDstBytesAdded );
}
srcBufferRemainingBytes = srcBufferLen - srcBufferPos -
totalSrcBytesCopied;
dstBufferRemainingBytes = dstMaxLen - dstBufferPos - totalDstBytesAdded;
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 index;
TInt srcUsed = iSrclenToProcess;
TInt dstLen = KMinDstLen;
TInt* tempIn = NULL;
TInt len = KMinBytesInput / sizeof( TInt );
tempIn = ( TInt* ) ( ( iInternalInputBuffer +
internalInputBufferPos ) );
for ( index = 0; index < len; index++ )
{
tempIn[index] &= 0xfff8fff8;
}
TInt error = iCodec->Encode( tempIn, srcUsed,
iInternalOutputBuffer, dstLen );
if ( error != 0 )
{
iInternalInputBufferResidueLen = 0;
totalSrcBytesCopied = srcBufferLen;
PRINT_ERR( error );
return Result(
TCodecProcessResult::EProcessError,
totalSrcBytesCopied, totalDstBytesAdded + dstBufferPos );
}
/**
* Fill Destination Buffer
*/
iInternalOutputBufferResidueLen = dstLen;
numberOfBytesCopied = CopyToDstBuffer( dst, totalDstBytesAdded );
dstBufferRemainingBytes -= numberOfBytesCopied;
/***
* Fill Source Buffer
*/
internalInputBufferPos += srcUsed ;
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 >=
iSrclenToProcess )
{
if( dstBufferRemainingBytes == 0 )
{
PRINT_EXIT;
return Result(
TCodecProcessResult::EProcessIncomplete,
totalSrcBytesCopied, totalDstBytesAdded );
}
}
else
{
// dst buffer has availabe space for encoded bytes
if ( dstBufferRemainingBytes > 0 )
{
if ( lastFrame )
{
if ( iInternalInputBufferResidueLen == 0 )
{
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 );
}
// --------------------------------------------------------------------------
// Default constructor for performing 1st stage construction.
// Should not contain any code that could leave.
// --------------------------------------------------------------------------
//
CAriAmrNbEncMmfCodec::CAriAmrNbEncMmfCodec()
{
PRINT_ENTRY;
iCodec = NULL;
iConfigured = EFalse;
iSrclenToProcess = KMinBytesInput;
iInternalInputBufferResidueLen = 0;
iInternalOutputBufferResidueLen = 0;
iInternalOutputBufferPos = 0;
iInternalInputBuffer = NULL;
iInternalOutputBuffer = NULL;
//default Parameters
iParam.iMode = 0;
iParam.iDtx = 0;
iParam.iFileFormat = 0;
PRINT_EXIT;
}
// --------------------------------------------------------------------------
// Second phase of the two-phased constructor.
// Creates an instance of encoder
// --------------------------------------------------------------------------
//
void CAriAmrNbEncMmfCodec::ConstructL()
{
PRINT_ENTRY;
iCodec = CAriAmrNbEncWrapper::NewL();
iInternalInputBuffer = ( TUint8* ) User::AllocZL( KMinBytesInput );
iInternalOutputBuffer = ( TUint8* ) User::AllocZL( KMinDstLen );
PRINT_MSG( LEVEL_HIGH, ( "Default mode: %d", iParam.iMode ) );
PRINT_MSG( LEVEL_HIGH, ( "Default DTX: %d", iParam.iDtx ) );
//Reset encoder with default parameters
User::LeaveIfError( iCodec->Reset( &iParam ) );
PRINT_EXIT;
}
//----------------------------------------------------------------------------
// Updates the result of the processing
//----------------------------------------------------------------------------
//
TCodecProcessResult CAriAmrNbEncMmfCodec::Result(
TCodecProcessResult::TCodecProcessResultStatus aStatus,
TInt aSrcBytesConsumed, TInt aDstBytesAdded )
{
PRINT_ENTRY;
TCodecProcessResult result;
result.iDstBytesAdded = aDstBytesAdded;
result.iSrcBytesProcessed = aSrcBytesConsumed;
switch ( aStatus )
{
case TCodecProcessResult::EProcessComplete:
result.iStatus = TCodecProcessResult::EProcessComplete;
break;
case TCodecProcessResult::EProcessIncomplete:
result.iStatus = TCodecProcessResult::EProcessIncomplete;
break;
case TCodecProcessResult::EEndOfData:
result.iStatus = TCodecProcessResult::EEndOfData;
break;
case TCodecProcessResult::EDstNotFilled:
result.iStatus = TCodecProcessResult::EDstNotFilled;
break;
case TCodecProcessResult::EProcessError:
result.iStatus = TCodecProcessResult::EProcessError;
break;
default:
result.iStatus = TCodecProcessResult::EProcessError;
break;
}
PRINT_MSG( LEVEL_HIGH, ( "result.iSrcBytesProcessed = %d",
result.iSrcBytesProcessed ) );
PRINT_MSG( LEVEL_HIGH, ( "result.iDstBytesAdded = %d",
result.iDstBytesAdded ) );
PRINT_MSG( LEVEL_HIGH, ( "result.iStatus = %d",
result.iStatus ) );
PRINT_EXIT;
return result;
}
//----------------------------------------------------------------------------
// Copy the bytes to destination buffer from the internal buffer
// first checks whether the number of bytes to be copied is lesser of the
// destination buffer reamining bytes and internal input internal remaining
// remaining bytes and then copies that many bytes.
//----------------------------------------------------------------------------
//
TInt CAriAmrNbEncMmfCodec::CopyToDstBuffer( CMMFDataBuffer* aDst,
TInt &aDstBytesConsumed )
{
PRINT_ENTRY;
TInt numberOfBytesToBeCopied;
const TInt dstMaxLen = aDst->Data().MaxLength();
TUint8* dstPtr = const_cast<TUint8*>( aDst->Data().Ptr() );
TInt dstBufferPos = aDst->Position();
TInt dstBufferRemainingBytes = dstMaxLen
- dstBufferPos
- aDstBytesConsumed;
TInt internalOutputBufferRemainingBytes =
iInternalOutputBufferResidueLen
- iInternalOutputBufferPos;
if ( internalOutputBufferRemainingBytes > dstBufferRemainingBytes )
{
numberOfBytesToBeCopied = dstBufferRemainingBytes;
}
else
{
numberOfBytesToBeCopied = internalOutputBufferRemainingBytes;
iInternalOutputBufferResidueLen = 0;
}
Mem::Copy( dstPtr + dstBufferPos + aDstBytesConsumed,
iInternalOutputBuffer + iInternalOutputBufferPos,
numberOfBytesToBeCopied );
if( iInternalOutputBufferResidueLen )
{
iInternalOutputBufferPos += dstBufferRemainingBytes;
}
else
{
iInternalOutputBufferPos = 0;
}
aDstBytesConsumed += numberOfBytesToBeCopied;
aDst->Data().SetLength( dstBufferPos + aDstBytesConsumed );
PRINT_EXIT;
return numberOfBytesToBeCopied;
}
//---------------------------------------------------------------------------
// Copy the bytes from the source buffer to the internal input buffer.
// first it checks number of bytes to be copied is lesser of the source buffer
// remaining bytes or internal input buffer remaining bytes and then copies
// that many bytes.
//---------------------------------------------------------------------------
//
TInt CAriAmrNbEncMmfCodec::CopyFromSrcBuffer(const CMMFDataBuffer* aSrc,
TInt &aSrcBytesConsumed )
{
PRINT_ENTRY;
TInt numberOfBytesToBeCopied;
TUint8* srcPtr = const_cast <TUint8*>( aSrc->Data().Ptr() );
TInt srcBufferLen = aSrc->Data().Length();
TInt srcBufferPos = aSrc->Position();
TInt srcBufferRemainingBytes = srcBufferLen - srcBufferPos
- aSrcBytesConsumed;
TInt internalInputBufferRemaingBytes = KMinBytesInput
- iInternalInputBufferResidueLen;
if ( internalInputBufferRemaingBytes > srcBufferRemainingBytes )
{
numberOfBytesToBeCopied = srcBufferRemainingBytes;
}
else
{
numberOfBytesToBeCopied = internalInputBufferRemaingBytes;
}
Mem::Copy( iInternalInputBuffer + iInternalInputBufferResidueLen,
srcPtr + srcBufferPos + aSrcBytesConsumed,
numberOfBytesToBeCopied );
iInternalInputBufferResidueLen += numberOfBytesToBeCopied;
aSrcBytesConsumed += numberOfBytesToBeCopied;
PRINT_EXIT;
return numberOfBytesToBeCopied;
}
//---------------------------------------------------------------------------
// Moves the data of the internal input buffer to the start position
//---------------------------------------------------------------------------
//
void CAriAmrNbEncMmfCodec::ShiftData( TInt aFromPos, TInt aToPos )
{
PRINT_ENTRY;
for ( TInt i = aFromPos; i < ( iInternalInputBufferResidueLen -
aFromPos ); i++ )
{
iInternalInputBuffer[i] =
iInternalInputBuffer[i + aFromPos];
}
iInternalInputBufferResidueLen -= aFromPos;
PRINT_EXIT;
}
// --------------------------------------------------------------------------
// Exported proxy for instantiation method resolution
// Define the interface UIDs
// --------------------------------------------------------------------------
//
const TImplementationProxy ImplementationTable[] =
{
IMPLEMENTATION_PROXY_ENTRY( KUidAmrNbEncMmfImplUid,
CAriAmrNbEncMmfCodec::NewL )
};
EXPORT_C const TImplementationProxy* ImplementationGroupProxy(
TInt& aTableCount )
{
PRINT_ENTRY;
aTableCount = sizeof( ImplementationTable ) /
sizeof( TImplementationProxy );
PRINT_EXIT;
return ImplementationTable;
}