diff -r 826cea16efd9 -r 13a33d82ad98 dvrengine/CommonRecordingEngine/inc/MCRPacketSource.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dvrengine/CommonRecordingEngine/inc/MCRPacketSource.h	Wed Sep 01 12:20:37 2010 +0100
@@ -0,0 +1,190 @@
+/*
+* Copyright (c) 2007 Nokia Corporation 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:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:    Class for all rtp packet sources*
+*/
+
+
+
+#ifndef MCRPACKRTSOURCE_H
+#define MCRPACKRTSOURCE_H
+
+// INCLUDES
+#include <e32def.h>
+#include <e32cmn.h>
+
+// CONSTANTS
+const TReal KRealZero( 0.0 ); 
+const TReal KRealMinusOne( -1.0 ); 
+
+// MACROS
+// None
+
+// DATA TYPES
+// None
+
+// FORWARD DECLARATIONS
+class CCRPacketBuffer;
+
+// CLASS DECLARATION
+
+/**
+* Interface for packet sources
+*
+*  @lib CommonRecordingEngine.lib
+*  @since Series 60 3.0
+*/
+class MCRPacketSource
+    {
+
+public: // Data types
+
+    /**
+    * Enum for indicating what stream an individual rtp packet belongs to.
+    */
+    enum TCRPacketStreamId
+        {
+        EAudioStream = 0,           /**< This rtp stream carries audio content data */
+        EAudioControlStream = 1,    /**< This rtp stream carries audio control data */
+        EVideoStream = 2,           /**< This rtp stream carries video content data */
+        EVideoControlStream = 3,    /**< This rtp stream carries video control data */
+        ESubTitleStream = 4,        /**< This rtp stream carries sub title content data */
+        ESubTitleControlStream = 5, /**< This rtp stream carries sub title control data */
+        EDisContinousStream = 6,    /**< This is info of discontinous point in stream */
+        EStreamEndTag = 7,          /**< This is info of end point of stream */
+        EStreamIdCount              /**< Number of different sources */
+        };    
+
+    /** 
+    * Enum for indicating rtp packet source state.
+    */
+    enum TCRPacketSourceState
+        {
+        ERtpStateIdle = 0,          /**< Nothing started yet */
+        ERtpStateSdpAvailable,      /**< SDP received */
+        ERtpStateSeqAndTSAvailable, /**< Should be ready for prime-time */
+        ERtpStateSetupRepply,       /**< Setup repply received */
+        ERtpStatePlaying,           /**< Stream is playing */
+        ERtpStateClosing,           /**< Stream is about to end */
+        ERtpStateCount              /**< Count number of different states */
+        };
+            
+public: // New methods
+
+    /**
+    * Method for acquiring sdp. 
+    * @since Series 60 3.0
+    * @param aSdp is string pointer that will be .Set() to contain
+    *        the sdp. If no sdp is available no .Set() will occur.
+    * @return KErrNotReady if no sdp available. 
+    */
+    virtual TInt GetSdp( TPtrC8& aSdp ) = 0;
+
+    /**
+    * Method for acquiring (almost) up-to-date sequence and ts numbers.
+    * @since Series 60 3.0
+    * @param aAudioSeq is reference to TUint that will be set by this
+    *        method to contain latest available sequence number for
+    *        audio stream being received via this packet source. 
+    * @param aAudioTS rtp timestamp for audio
+    * @param aVideoSeq rtp seq for video. If no video,
+             value will not be touched.
+    * @param aVideoTS rtp ts for video.
+    * @return KErrNone if data available. 
+    */
+    virtual TInt SeqAndTS( TUint& aAudioSeq,
+                           TUint& aAudioTS,
+                           TUint& aVideoSeq,
+                           TUint& aVideoTS ) = 0; 
+
+    /** 
+    * Method for ordering "play" for packet source.
+    * @since Series 60 3.0
+    * @param aStartPos is start position in sends.
+    * @param aEndPos is play end position in seconds.
+    * @return a system wide error code.
+    */         
+    virtual TInt Play( const TReal& aStartPos,
+                       const TReal& aEndPos ) = 0;
+
+    /** 
+    * Method for ordering "pause" for packet source.
+    * @since Series 60 3.0
+    * @param none.
+    * @return a system wide error code.
+    */         
+    virtual TInt Pause() = 0;
+                
+    /** 
+    * Method for stopping play from source.
+    * @since Series 60 3.0
+    * @param none.
+    * @return a system wide error code.
+    */
+    virtual TInt Stop() = 0;
+        
+    /**
+    * Method for getting range of stream. If no range/duration
+    * is available this method will set the return values to
+    * 0.0,-1.0 and that may be quite normal state live streams. 
+    * Also, depending on type of source this data may not be always
+    * available, for instance rtsp sources know the range after
+    * play command has been issued but not before. 
+    * @since Series 60 3.0
+    * @param aLower is where to start from. If no value available, 
+    *        value of aLower must be set to 0
+    * @param aUpper is where to stop. Negative values mean eternity.
+    * @return none
+    */      
+    virtual void GetRange( TReal& aLower,
+                           TReal& aUpper ) = 0; 
+    
+    /**
+    * Post action after source initialized.
+    * @since Series 60 3.0
+    * @param none.
+    * @return none.
+    */
+    virtual void PostActionL() = 0;
+
+    /**
+    * Method for requesting more packets to buffer.
+    * @since Series 60 3.0
+    * @param none.
+    * @return none.
+    */
+    virtual void Restore() = 0;
+
+    /**
+    * Setter for current position.
+    * @since Series 60 3.0
+    * @param aPosition a postion of playback.
+    * @return a system wide error code.
+    */
+    virtual TInt SetPosition( const TInt64 aPosition ) = 0;
+    
+    /**
+    * Getter for current position.
+    * @since Series 60 3.0
+    * @param aPosition a postion of playback.
+    * @param aDuration a duration of playback.
+    * @return a system wide error code.
+    */
+    virtual TInt GetPosition( TInt64& aPosition,
+                              TInt64& aDuration ) = 0;
+    
+    };
+
+#endif // MCRPACKRTSOURCE_H
+
+//  End of File