mmmw_plat/voip_audio_services_api/inc/voipdownlinkstream.h
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     1 /*
       
     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Defines VoIP downlink stream APIs.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #ifndef __VOIPDOWNLINKSTREAM_H
       
    20 #define __VOIPDOWNLINKSTREAM_H
       
    21 
       
    22 #include <voipaudiocommon.h>
       
    23 #include <voipdtmftoneplayer.h>
       
    24 
       
    25 
       
    26 // FORWARD DECLARATIONS
       
    27 class CVoIPAudioDownlinkStream;
       
    28 class CVoIPAudioDownlinkStreamImpl;
       
    29 class CVoIPDataBuffer;
       
    30 class CVoIPFormatIntfc;
       
    31 
       
    32 /**
       
    33  *  MVoIPDownlinkObserver class
       
    34  *
       
    35  *  ?more_complete_description
       
    36  *
       
    37  *  @lib VoIPAudioIntfc.dll
       
    38  *  @since S60 v5.0
       
    39  */
       
    40 class MVoIPDownlinkObserver
       
    41     {
       
    42 public:
       
    43     static const TUint KOpenComplete       = 1;
       
    44     static const TUint KDownlinkError      = 2;
       
    45     static const TUint KDownlinkClosed     = 3;
       
    46     static const TUint KAudioDeviceChanged = 4;
       
    47 
       
    48 public:
       
    49     /**
       
    50      * ?description
       
    51      *
       
    52      * @since S60 v5.0
       
    53      * @param const CVoIPAudioDownlinkStream&
       
    54      * @param CVoIPDataBuffer*
       
    55      * @return void
       
    56      */
       
    57     virtual void FillBuffer(const CVoIPAudioDownlinkStream& aSrc,
       
    58                             CVoIPDataBuffer* aBuffer) = 0;
       
    59     /**
       
    60      * ?description
       
    61      *
       
    62      * @since S60 v5.0
       
    63      * @param const CVoIPAudioDownlinkStream&
       
    64      * @param TInt - Event type
       
    65      * @param TInt - Status
       
    66      * @return void
       
    67      */
       
    68     virtual void Event(const CVoIPAudioDownlinkStream& aSrc,
       
    69                        TInt aEventType,
       
    70                        TInt aError) = 0;
       
    71     };
       
    72 
       
    73 
       
    74 /**
       
    75  *  CVoIPAudioDownlinkStream class
       
    76  *
       
    77  *  ?more_complete_description
       
    78  *
       
    79  *  @lib VoIPAudioIntfc.dll
       
    80  *  @since S60 v5.0
       
    81  */
       
    82 class CVoIPAudioDownlinkStream
       
    83     {
       
    84 public:
       
    85     /**
       
    86      *  TVoIPOutputDevice
       
    87      *  ?description
       
    88      *  @since S60 v5.0
       
    89      */
       
    90     enum TVoIPOutputDevice
       
    91         {
       
    92         EHandset,
       
    93         ELoudSpeaker,
       
    94         ENoPreference
       
    95         };
       
    96 
       
    97 public:
       
    98     /**
       
    99      * Destructor
       
   100      *
       
   101      * @since S60 v5.0
       
   102      * @param none
       
   103      * @return none
       
   104      */
       
   105     IMPORT_C virtual ~CVoIPAudioDownlinkStream();
       
   106 
       
   107     /**
       
   108      * ?description
       
   109      *
       
   110      * @since S60 v5.0
       
   111      * @param MVoIPDownlinkObserver&
       
   112      * @return TInt
       
   113      */
       
   114     IMPORT_C TInt Open(MVoIPDownlinkObserver& aObserver);
       
   115 
       
   116     /**
       
   117      * ?description
       
   118      *
       
   119      * @since S60 v5.0
       
   120      * @param TVersion&
       
   121      * @return TInt
       
   122      */
       
   123     IMPORT_C TInt GetVersion(TVersion& aVersion);
       
   124 
       
   125     /**
       
   126      * ?description
       
   127      *
       
   128      * @since S60 v5.0
       
   129      * @param TInt&
       
   130      * @return TInt
       
   131      */
       
   132     IMPORT_C TInt GetMaxVolume(TInt& aVolume);
       
   133 
       
   134     /**
       
   135      * ?description
       
   136      *
       
   137      * @since S60 v5.0
       
   138      * @param TInt
       
   139      * @return TInt
       
   140      */
       
   141     IMPORT_C TInt SetVolume(TInt aVolume);
       
   142 
       
   143     /**
       
   144      * ?description
       
   145      *
       
   146      * @since S60 v5.0
       
   147      * @param TInt&
       
   148      * @return TInt
       
   149      */
       
   150     IMPORT_C TInt GetVolume(TInt& aVolume);
       
   151 
       
   152     /**
       
   153      * ?description
       
   154      *
       
   155      * @since S60 v5.0
       
   156      * @param TVoIPCodecFormat
       
   157      * @param CVoIPFormatIntfc*&
       
   158      * @return TInt
       
   159      */
       
   160     IMPORT_C TInt SetFormat(TVoIPCodecFormat aFormat,
       
   161                             CVoIPFormatIntfc*& aIntfc);
       
   162 
       
   163     /**
       
   164      * ?description
       
   165      *
       
   166      * @since S60 v5.0
       
   167      * @param TVoIPOutputDevice
       
   168      * @return TInt
       
   169      */
       
   170     IMPORT_C TInt SetAudioDevice(TVoIPOutputDevice aDevice);
       
   171 
       
   172     /**
       
   173      * ?description
       
   174      *
       
   175      * @since S60 v5.0
       
   176      * @param TVoIPOutputDevice&
       
   177      * @return TInt
       
   178      */
       
   179     IMPORT_C TInt GetAudioDevice(TVoIPOutputDevice& aDevice);
       
   180 
       
   181     /**
       
   182      * ?description
       
   183      *
       
   184      * @since S60 v5.0
       
   185      * @param none
       
   186      * @return TInt
       
   187      */
       
   188     IMPORT_C TInt Start();
       
   189 
       
   190     /**
       
   191      * ?description
       
   192      *
       
   193      * @since S60 v5.0
       
   194      * @param none
       
   195      * @return TInt
       
   196      */
       
   197     IMPORT_C TInt Stop();
       
   198 
       
   199     /**
       
   200      * ?description
       
   201      *
       
   202      * @since S60 v5.0
       
   203      * @param none
       
   204      * @return void
       
   205      */
       
   206     IMPORT_C void Close();
       
   207 
       
   208     /**
       
   209      * ?description
       
   210      *
       
   211      * @since S60 v5.0
       
   212      * @param CVoIPDataBuffer*
       
   213      * @return TInt
       
   214      */
       
   215     IMPORT_C TInt BufferFilled(CVoIPDataBuffer* aBuffer);
       
   216 
       
   217 protected:
       
   218 
       
   219     /**
       
   220      * Constructor
       
   221      *
       
   222      * @since S60 v5.0
       
   223      * @param none
       
   224      * @return TInt
       
   225      */
       
   226     CVoIPAudioDownlinkStream();
       
   227 
       
   228     /**
       
   229      * Symbian constructor
       
   230      *
       
   231      * @since S60 v5.0
       
   232      * @param none
       
   233      * @return TInt
       
   234      */
       
   235      void ConstructL(
       
   236           CVoIPAudioDownlinkStreamImpl* aVoIPAudioDownlinkStreamImpl);
       
   237 
       
   238 private:
       
   239     /**
       
   240      * For internal use only
       
   241      */
       
   242     friend class CDTMFTonePlayer;
       
   243 
       
   244 private:
       
   245 
       
   246     CVoIPAudioDownlinkStreamImpl* iVoIPAudioDownlinkStreamImpl;
       
   247 
       
   248     };
       
   249 
       
   250 #endif //__VOIPDOWNLINKSTREAM_H
       
   251 
       
   252 
       
   253 // End of file