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1 /* |
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2 * Copyright (c) 2004-2006 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: Audio handler class. |
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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 CVTENGAUDIOHANDLER_H |
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21 #define CVTENGAUDIOHANDLER_H |
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22 |
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23 // INCLUDES |
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24 #include <e32base.h> |
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25 #include "MVtEngAudio.h" |
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26 #include "CVtEngOperation.h" |
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27 #include "MVtEngSettingPSObserver.h" |
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28 #include "CVTEngPubSubsListener.h" |
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29 #include "CVtEngAccessoryHandler.h" |
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30 #include "MVtEngAccessoryObserver.h" |
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31 // new audio routing |
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32 #include "TelephonyAudioRouting.h" |
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33 #include "MTelephonyAudioRoutingObserver.h" |
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34 #include <rphcltserver.h> |
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35 #include <mmf/server/sounddevice.h> |
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36 |
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37 // FORWARD DECLARATIONS |
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38 class CVtEngStateManager; |
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39 class CRoutingEnabler; |
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40 |
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41 /** |
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42 * Class for audio handling. |
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43 * |
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44 * @lib videoteleng.lib |
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45 * @since Series 60 2.6 |
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46 */ |
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47 NONSHARABLE_CLASS( CVtEngAudioHandler ) |
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48 : public CBase, |
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49 public MVtEngAudio, |
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50 private MVtEngAccessoryObserver, |
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51 private MTelephonyAudioRoutingObserver |
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52 { |
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53 public: // Constructors and destructor |
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54 |
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55 /** |
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56 * Two-phased constructor. |
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57 */ |
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58 static CVtEngAudioHandler* NewL(); |
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59 |
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60 /** |
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61 * Destructor. |
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62 */ |
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63 virtual ~CVtEngAudioHandler(); |
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64 |
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65 public: // New functions. |
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66 |
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67 /** |
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68 * Performs on operation in the handler. |
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69 * @param operation to be performed on the handler |
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70 */ |
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71 void HandleL( CVtEngOperation& aOperation ); |
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72 |
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73 /** |
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74 * Creates/releases temporary DevSound instance. |
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75 * @param aEnable |
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76 * ETrue creates devSound |
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77 * EFalse destructs devSound |
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78 */ |
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79 void SetRoutingEnablerL( const TBool aEnable ); |
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80 |
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81 /** |
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82 * Increases audio volume |
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83 */ |
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84 TBool IncreaseVolume(); |
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85 |
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86 /** |
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87 * Decreases audio volume |
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88 */ |
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89 TBool DecreaseVolume(); |
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90 |
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91 private: // Functions from base classes. |
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92 |
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93 // from MVtEngAccessoryObserver |
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94 |
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95 /** @see MVtEngAccessoryObserver */ |
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96 virtual void AccessoryModeChanged( const TAccMode& aMode, |
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97 const TBool aActivated ); |
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98 |
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99 // from MTelephonyAudioRoutingObserver |
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100 |
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101 /** @see MTelephonyAudioRoutingObserver::AvailableOutputsChanged */ |
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102 virtual void AvailableOutputsChanged( CTelephonyAudioRouting& aTelephonyAudioRouting ); |
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103 |
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104 /** @see MTelephonyAudioRoutingObserver::OutputChanged */ |
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105 virtual void OutputChanged( CTelephonyAudioRouting& aTelephonyAudioRouting ); |
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106 |
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107 /** @see MTelephonyAudioRoutingObserver::SetOutputComplete */ |
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108 virtual void SetOutputComplete( CTelephonyAudioRouting& aTelephonyAudioRouting, |
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109 TInt aError ); |
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110 |
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111 public: // Functions from base classes. |
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112 |
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113 /** @see MVtEngAudio::GetRoutingState. */ |
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114 virtual TInt GetRoutingState( TAudioRoutingState& aAudioRoutingState ); |
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115 |
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116 /** @see MVtEngAudio::GetRoutingAvailability. */ |
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117 virtual TInt GetRoutingAvailability( |
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118 const TAudioRoutingState aAudioRoutingState, |
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119 TBool& aAvailable ); |
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120 |
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121 /** @see MVtEngAudio::GetHeadsetType. */ |
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122 virtual TInt GetHeadsetType( TWiredHeadsetType& aHeadsetType ); |
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123 |
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124 /** @see MVtEngAudio::OutputVolume. */ |
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125 virtual TInt OutputVolume( const TBool aHandsetVolume ) const; |
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126 |
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127 private: |
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128 |
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129 /** |
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130 * C++ default constructor. |
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131 */ |
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132 CVtEngAudioHandler(); |
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133 |
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134 /** |
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135 * By default Symbian 2nd phase constructor is private. |
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136 */ |
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137 void ConstructL(); |
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138 |
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139 /** |
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140 * Completes operation. |
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141 * @param aResult error code |
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142 */ |
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143 void CompleteOperation( TInt aResult ); |
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144 |
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145 /** |
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146 * Sets loudspeaker on / off. |
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147 * @param aTurnOn ETrue if on, EFalse if off |
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148 * @param aShowNote ETrue if note is allowed to be shown, EFalse if not |
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149 */ |
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150 void SetLoudspeakerL( TBool aTurnOn, TBool aShowNote ); |
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151 |
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152 /** |
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153 * Sets Bluetooth on / off. |
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154 * @param aTurnOn ETrue if on, EFalse if off |
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155 */ |
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156 void SetBluetoothL( TBool aTurnOn ); |
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157 |
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158 /** |
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159 * Updates current volume that should be used. |
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160 */ |
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161 void UpdateCurrentVolume(); |
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162 |
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163 /** |
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164 * Checks if given audio output route is available. |
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165 * @return ETrue if given audio output route is available |
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166 */ |
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167 TBool IsOutputAvailable( const CTelephonyAudioRouting::TAudioOutput aOutput ); |
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168 |
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169 /** |
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170 * Modifies the volume by aDelta. |
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171 */ |
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172 TBool AdjustVolume( const TInt aDelta ); |
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173 |
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174 private: // Data |
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175 |
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176 // Enumeration flags used in the implementation. |
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177 enum |
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178 { |
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179 // Handset |
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180 EFlagHandset = 1, |
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181 // Loudspeaker |
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182 EFlagLoudspeaker = 2, |
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183 // Bluetooth handsfree |
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184 EFlagBT = 4, |
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185 // Wired headset |
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186 EFlagWiredHeadset = 8 |
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187 }; |
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188 |
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189 // Accessory mode listener class. |
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190 CVtEngAccessoryHandler* iAccHandler; |
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191 |
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192 // Contains the current accessory and it's audio mode. |
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193 TAccPolAccessoryMode iAccMode; |
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194 |
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195 // Pointer to telephony audio routing instance |
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196 CTelephonyAudioRouting* iTelephonyAudioRouting; |
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197 |
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198 // Current audio routing state |
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199 CTelephonyAudioRouting::TAudioOutput iCurrentAudioOutput; |
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200 |
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201 // Holds old routing state. |
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202 TAudioRoutingState iOldAudioRoutingState; |
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203 |
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204 // Pointer to an operation. |
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205 CVtEngOperation* iOperation; |
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206 |
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207 /** |
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208 * For enabling audio routing before actual |
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209 * DevSound for play is created. |
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210 */ |
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211 CRoutingEnabler* iRoutingEnabler; |
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212 }; |
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213 |
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214 /** |
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215 * Class for handling dummy DevSound. It enables audio routing |
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216 * before video call is connected. Proper devSound instance |
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217 * must exist in order to control audio routing. Actual instance |
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218 * is created in protocol in later phase of the stack |
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219 * initialization and one in here is deleted. |
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220 */ |
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221 NONSHARABLE_CLASS( CRoutingEnabler ) : |
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222 public CBase, |
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223 private MDevSoundObserver |
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224 { |
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225 public: // constructor and destructor |
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226 |
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227 // Constructor |
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228 static CRoutingEnabler* NewL(); |
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229 |
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230 // Destructor |
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231 ~CRoutingEnabler(); |
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232 |
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233 private: // constructors |
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234 |
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235 // c++ constructor |
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236 CRoutingEnabler(); |
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237 |
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238 /** |
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239 * Creates and starts devSound. |
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240 */ |
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241 void StartL(); |
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242 |
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243 public: // new functions |
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244 |
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245 public: // from MDevSoundObserver |
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246 |
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247 /** |
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248 * @see MDevSoundObserver |
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249 */ |
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250 virtual void InitializeComplete( TInt aError ); |
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251 |
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252 /** |
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253 * @see MDevSoundObserver |
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254 */ |
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255 virtual void ToneFinished( TInt aError ); |
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256 |
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257 /** |
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258 * @see MDevSoundObserver |
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259 */ |
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260 virtual void BufferToBeFilled( CMMFBuffer* aBuffer ); |
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261 |
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262 /** |
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263 * @see MDevSoundObserver |
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264 */ |
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265 virtual void PlayError( TInt aError ); |
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266 |
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267 /** |
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268 * @see MDevSoundObserver |
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269 */ |
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270 virtual void BufferToBeEmptied( CMMFBuffer* aBuffer ); |
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271 |
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272 /** |
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273 * @see MDevSoundObserver |
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274 */ |
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275 virtual void RecordError( TInt aError ); |
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276 |
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277 /** |
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278 * @see MDevSoundObserver |
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279 */ |
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280 virtual void ConvertError( TInt aError ); |
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281 |
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282 /** |
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283 * @see MDevSoundObserver |
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284 */ |
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285 virtual void DeviceMessage( |
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286 TUid aMessageType, |
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287 const TDesC8& aMsg ); |
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288 |
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289 private: |
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290 // Temporary DevSound instance to enable audio routing |
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291 // before actual instance in protocol is ready. |
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292 // Routing can be changed already when MO call is alerting. |
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293 CMMFDevSound* iDevSound; |
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294 |
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295 // Variable to detect failure in Devsound initialization or PlayInitL(). |
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296 // If failure happens, Devsound instance is deleted outside callback |
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297 // in desctructor. ETrue; failure happened, EFalse; all OK |
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298 TBool iDevsoundInitializeFailure; |
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299 }; |
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300 |
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301 |
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302 #endif // CVTENGAUDIOHANDLER_H |
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303 |
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304 // End of File |