author | hgs |
Thu, 01 Apr 2010 22:35:56 +0300 | |
changeset 25 | 866c8dcf3377 |
parent 0 | 822a42b6c3f1 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007 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 the License "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: Common interface for sources* |
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*/ |
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|
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#ifndef MCRPACKETSOURCEBASE_H |
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#define MCRPACKETSOURCEBASE_H |
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|
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// INCLUDES |
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#include "CCRStreamingSession.h" |
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#include "MCRPacketSource.h" |
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#include "MCRConnectionObserver.h" |
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|
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// CONSTANTS |
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// None |
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|
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// MACROS |
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// None |
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|
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// DATA TYPES |
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// None |
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|
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// FORWARD DECLARATIONS |
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// None |
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|
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// CLASS DECLARATION |
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// None |
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|
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/** |
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* Interface to source. |
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* |
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* @lib CommonRecordingEngine.lib |
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* @since Series 60 3.0 |
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*/ |
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class CCRPacketSourceBase : public CBase, |
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public MCRPacketSource |
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{ |
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|
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public: // Constructors and destructors |
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|
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/** |
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* Destructor |
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*/ |
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virtual ~CCRPacketSourceBase(); |
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public: // Methods from base classes |
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|
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/** |
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* From MCRPacketSource. |
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* Method for setting buffers to packet source. |
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* @since Series 60 3.0 |
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* @param aBuffer is buffer to be set. |
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* @return none. |
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*/ |
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virtual void SetBuffer( CCRPacketBuffer* aBuffer ); |
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|
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/** |
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* From MCRPacketSource. |
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* Method for acquiring sdp. |
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* @since Series 60 3.0 |
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* @param aSdp is string pointer that will be .Set() to contain the sdp. |
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* If no sdp is available no .Set() will occur. |
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* @return KErrNotReady if no sdp available. |
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*/ |
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virtual TInt GetSdp( TPtrC8& aSdp ) = 0; |
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|
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/** |
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* From MCRPacketSource. |
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* Method for acquiring (almost) up-to-date sequence and ts numbers. |
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* @since Series 60 3.0 |
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* @param aAudioSeq is reference to TUint that will be set by this |
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* method to contain latest available sequence number for |
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* audio stream being received via this packet source. |
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* @param aAudioTS rtp timestamp for audio. |
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* @param aVideoSeq rtp seq for video. If no video, value will not be touched. |
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* @param aVideoTS rtp ts for video. |
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* @return KErrNone if data available. |
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*/ |
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virtual TInt SeqAndTS( TUint& aAudioSeq, |
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TUint& aAudioTS, |
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TUint& aVideoSeq, |
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TUint& aVideoTS ); |
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/** |
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* From MCRPacketSource. |
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* Method for ordering "play" for packet source. |
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* @since Series 60 3.0 |
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* @param aStartPos is start position in seconds. |
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* @param aEndPos is end position in seconds. |
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* @return a system wide error code. |
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*/ |
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virtual TInt Play( const TReal& aStartPos, |
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const TReal& aEndPos ); |
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|
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/** |
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* From MCRPacketSource. |
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* Method for pausing play from source. |
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* @since Series 60 3.0 |
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* @param none. |
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* @return a system wide error code. |
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*/ |
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virtual TInt Pause(); |
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|
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/** |
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* From MCRPacketSource. |
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* Method for stopping play from source. |
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* @since Series 60 3.0 |
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* @param none. |
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* @return a system wide error code. |
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*/ |
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virtual TInt Stop(); |
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|
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/** |
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* From MCRPacketSource. |
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* Setter for current position. |
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* @since Series 60 3.0 |
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* @param aPosition a postion of playback. |
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* @return a system wide error code. |
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*/ |
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virtual TInt SetPosition( const TInt64 aPosition ); |
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|
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/** |
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* From MCRPacketSource. |
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* Getter for current position. |
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* @since Series 60 3.0 |
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* @param aPosition a postion of playback. |
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* @param aDuration a duration of playback. |
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* @return a system wide error code. |
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*/ |
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virtual TInt GetPosition( TInt64& aPosition, |
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TInt64& aDuration ); |
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|
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/** |
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* From MCRPacketSource. |
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* Method for getting range of stream. If no range/duration |
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* is available this method will set the return values to |
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* 0.0,-1.0 and that may be quite normal state live streams. |
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* @since Series 60 3.0 |
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* @param aLower is where to start from. |
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If no value available, value of aLower must be set to 0. |
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* @param aUpper is where to stop. Negative values mean eternity. |
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* @return none. |
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*/ |
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virtual void GetRange( TReal& aLower, |
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TReal& aUpper ); |
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|
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/** |
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* From MCRPacketSource. |
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* Post action after source initialized. |
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* @since Series 60 3.0 |
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* @param none. |
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* @return none. |
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*/ |
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virtual void PostActionL(); |
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|
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/** |
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* From MCRPacketSource. |
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* Method for requesting more packets to buffer. |
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* @since Series 60 3.0 |
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* @param none. |
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* @return none. |
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*/ |
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virtual void Restore(); |
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|
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public: // New methods |
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|
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/** |
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* Method that owner of source may utilitze to distinguish |
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* between sources |
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* @since Series 60 3.0 |
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* @param none. |
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* @return Id that may have been set. |
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*/ |
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virtual CCRStreamingSession::TCRSourceId Id( void ) const; |
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|
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/** |
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* Registers connection observer. |
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* @since Series 60 3.0 |
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* @param aObserver aObserver. |
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* @return none. |
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*/ |
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virtual void RegisterConnectionObs( MCRConnectionObserver* aObserver ); |
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|
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protected: // Constructors and destructors |
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|
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/** |
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* Default constructor |
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*/ |
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CCRPacketSourceBase( CCRStreamingSession& aSession, |
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CCRStreamingSession::TCRSourceId aSourceId ); |
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|
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protected: // Data |
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/** |
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* Pointer to streaming session that owns us. |
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*/ |
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CCRStreamingSession& iOwningSession; |
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/** |
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* Buffer used by sources. |
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*/ |
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CCRPacketBuffer* iBuffer; |
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/** |
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* Source id, set by owner |
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*/ |
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const CCRStreamingSession::TCRSourceId iSourceId; |
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}; |
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#endif // MCRPACKETSOURCEBASE_H |
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// End of File |