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/*
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* Copyright (c) 2004-2006 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Provides a comfort noise generator class
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*
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*/
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#ifndef MSRPPAYLOADFORMATREAD_H
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#define MSRPPAYLOADFORMATREAD_H
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// INCLUDES
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#include <e32base.h>
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#include <e32std.h>
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#include <rtpheader.h>
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#include <mmfformat.h>
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#include <rtpheader.h>
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#include "formatstatemachine.h"
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#include "mccinternalcodecs.h"
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// CLASS DECLARATION
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class CMMFBuffer;
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class TStringElement;
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/**
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*
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*/
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class CMsrpPayloadFormatRead : public CPayloadFormatRead,
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public MPayloadFormatRead
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{
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public: // Constructors and destructor
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/**
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* Two-phased constructor.
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* @param aSource Source of the data for the payload format plugin
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*/
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static CMsrpPayloadFormatRead* NewL ( MDataSource* aSource );
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/**
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* Destructor.
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*/
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virtual ~CMsrpPayloadFormatRead ( );
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public: // New functions
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/**
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* Get number of audio packets received on downlink in last talk spurt.
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* @since Series-60 2.1
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* @return Number of audio packets received
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*/
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virtual TInt LastDlPacketCount( );
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/**
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* Cancel any requests from DataPath and Stop state machine also
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* @since Series-60 2.1
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* @return None
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*/
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virtual void CancelDlRequest( );
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/**
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* Send full sink buffer with AMR frames to data path.
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* Sink buffer is decided on one of the two frame buffers
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* Called by the state machine.
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* @since Series-60 2.1
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* @return None
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*/
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void SendDataToSinkL( );
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/*
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* Fill the sink buffer by decoding the RTP payload into AMR frames
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* Sink buffer is decided on one of the two frame buffers
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* Called by the state machine.
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* @since Series-60 2.1
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* @return None
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*/
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void FillSinkBufferL( );
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/**
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* Request the RTPSource to fill the source buffer with RTP payload
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* Source buffer is decided by the RTPSource.
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* Called by the state machine.
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* @since Series-60 2.1
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* @return None
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*/
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void FillSourceBufferL( );
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public: // From CMMFFormatDecode
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/**
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* From CMMFFormatDecode. Return number of audio streams for the given
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* media Raw audio files can only have 1 audio stream.
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*
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* @param aMediaType KUidMediaTypeAudio or KUidMediaTypeVideo
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* @return Number of audio streams
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*/
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TUint Streams( TUid aMediaType ) const;
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/**
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* Return the frame time interval for the given media
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*
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* @param aMediaType KUidMediaTypeAudio or KUidMediaTypeVideo
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*
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* @return Time interval in micro seconds
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*/
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TTimeIntervalMicroSeconds FrameTimeInterval( TMediaId aMediaType ) const;
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/** *** NOT SUPPORTED ***
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* Return the clip duration for the given media
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*
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* @param aMediaType KUidMediaTypeAudio or KUidMediaTypeVideo
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*
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* @return Clip duration in micro seconds
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*/
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TTimeIntervalMicroSeconds Duration( TMediaId aMediaType ) const;
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/**
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* From CMMFFormatDecode
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*/
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TFourCC SinkDataTypeCode( TMediaId aMediaId );
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public: // From MDataSource. CAmrPayloadFormatRead is data source to the data path and AMR codec.
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/**
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* From MDataSource. Read the next block of data from file into the
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* given buffer.
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*
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* @param aBuffer source data buffer for the AMR-NB data read
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* @param aConsumer data sink pointer
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* @param aMediaId contains the media type KUidMediaTypeAudio or KUidMediaTypeVideo
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*
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* @return
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*/
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void FillBufferL( CMMFBuffer* aBuffer,
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MDataSink* aConsumer,
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TMediaId aMediaId );
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/**
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* From MDataSource. Primes the source.
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* @since Series 60 3.0
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* @return None
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*/
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void SourcePrimeL( );
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/**
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* From MDataSource. Plays the source.
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* @since Series 60 3.0
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* @return None
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*/
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void SourcePlayL( );
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/**
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* From MDataSource. Pauses the source.
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* @since Series 60 3.0
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* @return None
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*/
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void SourcePauseL( );
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/**
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* From MDataSource. Stops the source.
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* @since Series 60 3.0
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* @return None
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*/
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void SourceStopL( );
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/**
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* Create a source buffer for the given media
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*
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* @param aMediaId contains the media type KUidMediaTypeAudio or KUidMediaTypeVideo
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* @param aReference value of False is returned to caller if source buffer is created
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*
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* @return Pointer to source buffer created
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*/
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CMMFBuffer* CreateSourceBufferL( TMediaId aMediaId,
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TBool &aReference );
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/**
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* Create a source buffer for the given media, setting frame size to match
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* the given sink buffer
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*
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* @param aMediaId contains the media type KUidMediaTypeAudio or KUidMediaTypeVideo
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* @param aSinkBuffer address of sink buffer
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* @param aReference value of False is returned to caller if source buffer is created
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*
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* @return Pointer to source buffer created
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*/
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CMMFBuffer* CreateSourceBufferL( TMediaId aMediaId,
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CMMFBuffer& aSinkBuffer,
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TBool &aReference );
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/**
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* Return the four CC code for the given media
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*
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* @param aMediaId contains the media type KUidMediaTypeAudio or KUidMediaTypeVideo
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*
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* @return FourCC code
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*/
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TFourCC SourceDataTypeCode( TMediaId aMediaId );
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/**
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* Set the source data type to the given four CC code for the given media
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*
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* @param aSourceFourCC fourCC code
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* @param aMediaId contains the media type KUidMediaTypeAudio or KUidMediaTypeVideo
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*
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* @return error code KErrNotSupported if invalid media ID, else return KErrNone
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*/
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TInt SetSourceDataTypeCode( TFourCC aSourceFourCC,
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TMediaId aMediaId );
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/**
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* Log in to the source thread - this funtion merely passes the command to
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* its source clip data source object. The source clip object will handle
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* the thread log on procedures.
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*
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* @param aEventHandler address of event handler
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*
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* @return error code returned by source clip
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*/
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TInt SourceThreadLogon( MAsyncEventHandler& aEventHandler );
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/**
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* Log out of the source thread - this funtion merely passes the command to
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* its source clip data source object. The source clip object will handle
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* the thread log off procedures.
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*
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* @return None
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*/
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void SourceThreadLogoff( );
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/**
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* Negotiate source settings ( buffer size ) to match
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* given source object
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*
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* @param aDataSink address of sink object
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*
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* @return None
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*/
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void NegotiateSourceL( MDataSink& aDataSink );
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public: // From MDataSink. CAmrPayloadFormatRead is data sink to the RTP data source.
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/**
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* Called after the data buffer is filled. Update the number of bytes read
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* and the current read position for the next read operation.
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*
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* @param aBuffer data buffer filled
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* @param aHeaderInfo RTP packet header information
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* @return None
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*/
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virtual void DataBufferFilledL( CMMFBuffer* aBuffer,
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const TRtpRecvHeader& aHeaderInfo );
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public: // only for videosource-anyformatter-filesink
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void BufferFilledL( CMMFBuffer* aBuffer );
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public:
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/**
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* Configures payload format with format spesific parameters.
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* Leaves with KErrArgument if parameters are invalid.
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*
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* @since Series 60 3.0
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* @param aConfigParams Configuration parameters
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* @return void
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*/
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virtual void ConfigurePayloadFormatL( const TDesC8& aConfigParams );
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protected: // Functions from base classes
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private:
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/**
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* C++ default constructor.
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*/
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CMsrpPayloadFormatRead();
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/**
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* By default Symbian 2nd phase constructor is private.
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*
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* @param aSource Source of the data for the payload format plugin
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*/
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void ConstructL( MDataSource* aSource );
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/**
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* Creates a buffer used in data transfer between format read and
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* its datasource.
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*
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* @since Series 60 3.2
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* @param aSize Suggested buffer size
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* @param aIsOwnBuffer Indicates ownership of the buffer
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* @return Created buffer
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*/
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CMMFDataBuffer* CreateClipBufferL( TUint aSize, TBool& aIsOwnBuffer );
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TBool FilterUnwantedData(const TDesC8& aBuffer);
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void UpdateConfigurationL( const TDesC8& aConfigParams );
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TInt DecodePayloadL( const TDesC8& aSourceBuffer );
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TInt HandleRedundancyL(TInt aErrNo);
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void SelectFrameBuffer(const TRtpRecvHeader& aRtpHeader);
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TUint32 Read32( const TUint8* const aPointer );
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TUint32 Read24( const TUint8* const aPointer );
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TUint32 Read8 ( const TUint8* const aPointer );
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TInt ParseRedHeader(TUint32 aheader, TUint16& aLenght, TUint16& aTimeStamp );
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void ResetBuffers();
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void ResetPacketBuffers();
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private: // data
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// Flag used to determine which buffer is currently used as a sink buffer
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enum TCurrentBuffer
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{
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EBufferOne = 0,
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EBufferTwo,
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EBufferNone
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};
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// Data source providing RTP data
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MDataSource* iRtpDataSource;
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TFourCC iFourCC;
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TMediaId iMediaId;
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TBool iFillRequested;
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TBool iBufferToReadExists;
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// Format decoding state machine
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CFormatDecodeStateMachine* iStateMachine;
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// Buffer one to store data
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CMMFDataBuffer* iFrameBufferOne;
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// Buffer two to store data
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CMMFDataBuffer* iFrameBufferTwo;
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// Current buffer in use
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CMMFDataBuffer* iCurrentBuffer;
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// Buffer to hold payload got from RtpSourceSink
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CMMFDataBuffer* iPayloadBuffer;
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// decodedData
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CMMFDataBuffer* iDecodedBuffer;
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// Indicates whether payload read has ownership of source buffer
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TBool iSourceBufOwnership;
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// Parameters relating to data decoding
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TMccCodecInfo iCodecInfo;
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// MMF AsyncEventHandler
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MAsyncEventHandler* iEventHandler;
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TInt iPacketCount;
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TInt iDroppedPacketCount;
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TInt64 iSatisfySecNumber;
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TInt64 iCheckSum;
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TBool iFirstPacketsMissing;
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TInt iLevelsMissing;
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CArrayFixFlat< TStringElement >* iRedData;
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HBufC8* iCharData;
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//Flag to indicate have we getten the check sum seed
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TBool iPacketSecNumber;
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//#ifdef TEST_EUNIT
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// For EUnit test cases
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friend class UT_CMsrpPayloadFormatRead;
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//#endif
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};
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#endif
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