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1 /* |
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2 * Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #ifndef AUDIOSTREAMMANAGER_H |
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21 #define AUDIOSTREAMMANAGER_H |
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22 |
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23 #include <e32base.h> |
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24 #include <ecom/ecom.h> |
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25 #include <a3f/a3f_trace_utils.h> |
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26 #include <a3f/a3fbase.h> |
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27 #include <a3f/maudiostream.h> |
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28 |
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29 /** |
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30 A generic AudioComponent base class implementation. |
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31 @see MAudioProcessingUnit |
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32 */ |
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33 NONSHARABLE_CLASS(CAudioStreamManager) : public CBase, |
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34 public MAudioStream |
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35 { |
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36 public: |
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37 static CAudioStreamManager* NewL(TUid aImplementationUid); |
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38 /** |
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39 Destructor. |
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40 Releases all resources and deletes all objects owned by this instance. |
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41 */ |
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42 virtual ~CAudioStreamManager(); |
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43 |
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44 //From MAudioStream |
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45 virtual TInt RegisterAudioStreamObserver(MAudioStreamObserver& aObserver); |
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46 virtual void UnregisterAudioStreamObserver(MAudioStreamObserver& aObserver); |
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47 virtual TInt SetAudioType(const TAudioTypeSettings& aAudioTypeSettings); |
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48 virtual void GetAudioType(TAudioTypeSettings& aAudioTypeSettings) const; |
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49 virtual TAudioStreamId InstanceId() const; |
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50 CAudioStreamManager(); |
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51 |
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52 protected: // data |
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53 TAudioStreamId iAudioStreamId; |
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54 TAudioTypeSettings iAudioTypeSettings; |
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55 RPointerArray<MAudioStreamObserver> iAudioStreamObserver; |
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56 |
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57 private: |
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58 TUid iDtor_ID_Key; |
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59 |
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60 }; |
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61 |
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62 |
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63 // Interface's (abstract base class's) destructor |
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64 inline CAudioStreamManager::~CAudioStreamManager() |
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65 { |
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66 iAudioStreamObserver.Close(); |
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67 REComSession::DestroyedImplementation(iDtor_ID_Key); |
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68 } |
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69 |
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70 // Interface's (abstract base class's) static factory method implementation. |
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71 // Asks ECOM plugin framework to instantiate appropriate concret plugin |
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72 // implementation. |
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73 inline CAudioStreamManager* CAudioStreamManager::NewL(TUid aImplementationUid) |
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74 { |
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75 TAny* ptr = REComSession::CreateImplementationL( aImplementationUid , _FOFF(CAudioStreamManager, iDtor_ID_Key)); |
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76 return static_cast<CAudioStreamManager*>(ptr); |
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77 } |
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78 |
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79 inline CAudioStreamManager::CAudioStreamManager() |
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80 { |
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81 //iAudioStreamId |
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82 } |
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83 |
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84 // --------------------------------------------------------------------------- |
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85 // CAudioStreamManager::RegisterAudioStreamObserver |
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86 // --------------------------------------------------------------------------- |
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87 inline TInt CAudioStreamManager::RegisterAudioStreamObserver(MAudioStreamObserver& aObserver) |
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88 { |
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89 TInt err = iAudioStreamObserver.Find(&aObserver); |
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90 if(err == KErrNotFound) |
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91 { |
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92 err = iAudioStreamObserver.Append(&aObserver); |
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93 } |
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94 else |
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95 { |
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96 err = KErrAlreadyExists; |
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97 } |
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98 return err; |
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99 } |
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100 |
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101 // --------------------------------------------------------------------------- |
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102 // CAudioStreamManager::UnregisterAudioStreamObserver |
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103 // --------------------------------------------------------------------------- |
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104 inline void CAudioStreamManager::UnregisterAudioStreamObserver(MAudioStreamObserver& aObserver) |
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105 { |
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106 TInt idxOrErr = iAudioStreamObserver.Find(&aObserver); |
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107 if( idxOrErr != KErrNotFound ) |
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108 { |
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109 iAudioStreamObserver.Remove(idxOrErr); |
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110 } |
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111 } |
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112 |
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113 // --------------------------------------------------------------------------- |
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114 // CAudioStreamManager::InstanceId |
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115 // --------------------------------------------------------------------------- |
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116 inline TAudioStreamId CAudioStreamManager::InstanceId() const |
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117 { |
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118 return iAudioStreamId; |
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119 } |
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120 |
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121 // --------------------------------------------------------------------------- |
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122 // CAudioStreamManager::SetAudioType |
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123 // --------------------------------------------------------------------------- |
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124 inline TInt CAudioStreamManager::SetAudioType(const TAudioTypeSettings& aAudioTypeSettings) |
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125 { |
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126 TInt err(KErrNone); |
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127 iAudioTypeSettings = aAudioTypeSettings; |
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128 return err; |
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129 } |
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130 |
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131 // --------------------------------------------------------------------------- |
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132 // CAudioStreamManager::GetAudioType |
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133 // --------------------------------------------------------------------------- |
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134 inline void CAudioStreamManager::GetAudioType(TAudioTypeSettings& aAudioTypeSettings) const |
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135 { |
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136 aAudioTypeSettings = iAudioTypeSettings; |
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137 } |
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138 #endif // CAUDIOSTREAMFACTORY_H |