multimediacommsengine/mmcesrv/mmcemediamanager/inc/mceaudiosdpcodec.h
changeset 0 1bce908db942
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/multimediacommsengine/mmcesrv/mmcemediamanager/inc/mceaudiosdpcodec.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,174 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:    
+*
+*/
+
+
+
+
+#ifndef CMCEAUDIOSDPCODEC_H
+#define CMCEAUDIOSDPCODEC_H
+
+#include "mcemediasdpcodec.h"
+
+class CMceComAudioStream;
+class CMceComAudioCodec;
+
+
+#define MCE_SDP_STRING_AUDIOL()\
+        SdpCodecStringPool::StringPoolL().StringF( \
+        SdpCodecStringConstants::EMediaAudio,\
+        SdpCodecStringPool::StringTableL() )
+
+/**
+ * 
+ *
+ * @lib 
+ */
+class CMceAudioSdpCodec: public CMceMediaSdpCodec
+    {
+
+    public://constructor and destructor
+    
+        /**
+        * Constructor
+        */
+        static CMceAudioSdpCodec* NewL();
+        
+        /**
+        * Destructor
+        */
+        ~CMceAudioSdpCodec();
+        
+
+    public: //from CMceSdpCodec
+        
+        /**
+        * Returns ETrue, if media is encoded by this codec
+        * @return ETrue, if media is encoded by this codec
+        */
+        TBool Encodes( const CMceComMediaStream& aStream ) const;
+        
+        
+    public: //from CMceMediaSdpCodec
+    
+
+        /**
+        * Returns codecs
+        * @param aStream media stream
+        * @param return codecs
+        * @leave if stream type does not macth codecs
+        */
+        const RPointerArray<CMceComCodec>& CodecsL( CMceComMediaStream& aStream ) const;
+
+        /**
+        * Encodes rtpmap -attribute
+        * @param aCodec codec encoded to rtpmap
+        * @leave system wide error
+        */
+        CSdpFmtAttributeField* EncodeRtpmapAttributeLC( CMceComCodec& aCodec ) const;
+        
+        /**
+        * Encodes media related attributes
+        * @param aCodec the codec
+        * @param aMediaLine media line
+        * @param aRtpmap rtpmap attribute
+        * @leave system wide error
+        */
+        void EncodeMediaAttributesL( CMceComCodec& aCodec, 
+                                     CSdpMediaField& aMediaLine, 
+                                     CSdpFmtAttributeField& aRtpmap ) const;
+
+        /**
+        * Decodes media related attributes
+        * @param aMediaLine media line
+        * @param aCodec the codec
+        * @leave system wide error
+        */
+       	void DecodeMediaAttributesL( CSdpMediaField& aMediaLine, 
+                                     CMceComCodec& aCodec,
+                                     CSdpFmtAttributeField& aRtpmap ) const;
+
+        /**
+        * Creates media stream based on sdp type
+        * @param aType the sdp type sendrecv, sendonly or receive only
+        * @return media stream
+        * @leave system wide error
+        */
+        CMceComMediaStream* CreateStreamLC( TInt aType ) const;
+        
+        /**
+        * Updates media based on received offer
+        * @param aStream media stream
+        * @param aDirection the direction 
+        * @leave system wide error
+        */
+        void UpdateStreamL( CMceComMediaStream& aStream, TInt aDirection ) const;
+        
+        /**
+        * Creates codec based on rtpmap line
+        * @param aRtpmap rtpmap line
+        * @return codec or NULL, if not supported
+        * @leave system wide error
+        */
+        CMceComCodec* CreateCodecLC( CSdpFmtAttributeField& aRtpmap ) const;
+        
+        /**
+        * Creates codec based on payload type
+        * @param aPayload payload
+        * @param aMediaLine media line
+        * @return codec or NULL, if not supported
+        * @leave system wide error
+        */
+        CMceComCodec* CreateCodecLC( TUint aPayload, CSdpMediaField& aMediaLine ) const;
+        
+        /**
+        * Decodes session level media attributes
+        * @param aStream media stream
+        * @param aSdpDocument sdp document
+        * @return codec or NULL, if not supported
+        * @leave system wide error
+        */
+        void DecodeSessionMediaAttributesL( CMceComMediaStream& aStream, 
+                                            CSdpDocument& aSdpDocument ) const;
+         
+    private:
+                                 
+
+        /**
+        * C++ Constructor
+        * @param aMedia media
+        */
+        CMceAudioSdpCodec( RStringF aMedia );
+
+        /**
+        * Creates uplink audio stream with mic and rtp sink
+        * @return uplink audio stream
+        */
+        CMceComAudioStream* CreateUplinkStreamL() const;
+        
+        /**
+        * Creates downlink audio stream with rtp source and speaker
+        * @return downlink audio stream
+        */
+        CMceComAudioStream* CreateDownlinkStreamL() const;
+        
+    
+    };
+
+
+
+#endif //CMCEAUDIOSDPCODEC_H
+