1 /* |
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2 * Copyright (c) 2005-2007 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: Virtualizes audio channels. |
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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 // INCLUDE FILES |
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21 #include <logger.h> |
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22 #include "cammsemcaudiovirtualizercontrol.h" |
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23 |
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24 |
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25 // CONSTANTS |
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26 const TInt KAMMSEMCDefaultStereoWideningLevel = 100; |
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27 |
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28 // ============================ MEMBER FUNCTIONS =============================== |
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29 |
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30 |
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31 // ----------------------------------------------------------------------------- |
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32 // CAMMSEMCAudioVirtualizerControl::NewLC |
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33 // Two-phased constructor. |
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34 // ----------------------------------------------------------------------------- |
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35 CAMMSEMCAudioVirtualizerControl* CAMMSEMCAudioVirtualizerControl::NewLC( |
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36 CMMAPlayer* aPlayer) |
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37 { |
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38 CAMMSEMCAudioVirtualizerControl* self = |
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39 new(ELeave) CAMMSEMCAudioVirtualizerControl(aPlayer); |
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40 |
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41 CleanupStack::PushL(self); |
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42 self->ConstructL(); |
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43 |
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44 return self; |
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45 } |
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46 |
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47 // Destructor |
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48 CAMMSEMCAudioVirtualizerControl::~CAMMSEMCAudioVirtualizerControl() |
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49 { |
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50 LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl::~CAMMSEMCAudioVirtualizerControl"); |
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51 |
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52 // Perform DeallocateControl, if the state change has not yet performed it. |
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53 DeallocateControl(); |
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54 if (iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility) |
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55 delete iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility; |
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56 delete iPresetNames; |
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57 |
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58 } |
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59 |
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60 // ----------------------------------------------------------------------------- |
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61 // CAMMSEMCAudioVirtualizerControl::SetPresetL |
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62 // Sets the effect according to the given preset. |
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63 // ----------------------------------------------------------------------------- |
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64 // |
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65 void CAMMSEMCAudioVirtualizerControl::SetPresetL(const TDesC& aPreset) |
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66 { |
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67 |
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68 LOG1( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl::SetPresetL \"%S\"", |
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69 aPreset.Ptr()); |
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70 CStereoWidening *iStereoWidening = NULL; |
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71 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->PrepareEmptyStereoWideningUtilitiesL(); |
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72 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->GetPresetNamesL(*iPresetNames); |
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73 TInt presetPosition = 0; |
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74 TInt findPreset = iPresetNames->Find(aPreset, presetPosition); |
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75 if (findPreset == 0) // Find returns zero, if a matching element is found. |
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76 { |
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77 iStereoWidening = iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->GetStereoWideningAtPresetIndexL(presetPosition); |
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78 iCurrentPreset = presetPosition; |
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79 } |
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80 else |
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81 { |
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82 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->DeleteEmptyStereoWideningUtilities(); |
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83 User::Leave(KErrArgument); |
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84 } |
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85 |
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86 if (!iStereoWidening) |
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87 { |
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88 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->DeleteEmptyStereoWideningUtilities(); |
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89 return; |
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90 } |
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91 //Get all preset data here |
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92 TUint8 iStereoWideningLevel = iStereoWidening->StereoWideningLevel(); |
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93 // Set all preset data to EMC |
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94 iMStereoWideningControl->SetStereoWideningLevel(iStereoWideningLevel); |
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95 iMStereoWideningControl->Apply(); |
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96 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->DeleteEmptyStereoWideningUtilities(); |
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97 LOG1( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl::SetPresetL \"%S\" GetPresetL OK", |
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98 aPreset.Ptr()); |
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99 } |
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100 |
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101 // ----------------------------------------------------------------------------- |
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102 // CAMMSEMCAudioVirtualizerControl::PresetNamesL |
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103 // Gets the available preset names. |
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104 // ----------------------------------------------------------------------------- |
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105 // |
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106 const CDesCArray& CAMMSEMCAudioVirtualizerControl::PresetNamesL() |
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107 { |
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108 // Returns an array of all preset names (pre-defined and user-defined). |
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109 // The pre-defined presets are in the beginning of the list. |
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110 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->PrepareEmptyStereoWideningUtilitiesL(); |
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111 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->GetPresetNamesL(*iPresetNames); |
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112 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->DeleteEmptyStereoWideningUtilities(); |
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113 return *iPresetNames; |
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114 } |
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115 |
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116 // ----------------------------------------------------------------------------- |
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117 // CAMMSEMCAudioVirtualizerControl::PresetL |
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118 // Gets the current preset. |
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119 // ----------------------------------------------------------------------------- |
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120 // |
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121 const TDesC& CAMMSEMCAudioVirtualizerControl::PresetL() |
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122 { |
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123 //if no preset is set, return null |
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124 if (iCurrentPreset < 0) |
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125 { |
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126 return KNullDesC; |
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127 } |
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128 |
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129 else |
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130 { |
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131 // Retrieves a Preset with the given index from the utility class |
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132 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->PrepareEmptyStereoWideningUtilitiesL(); |
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133 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->GetPresetAtIndexL(iPresetName , iCurrentPreset); |
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134 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->DeleteEmptyStereoWideningUtilities(); |
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135 return iPresetName; |
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136 } |
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137 } |
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138 |
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139 // ----------------------------------------------------------------------------- |
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140 // CAMMSEMCAudioVirtualizerControl::SetEnabledL |
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141 // Enables/disables the effect. |
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142 // ----------------------------------------------------------------------------- |
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143 // |
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144 void CAMMSEMCAudioVirtualizerControl::SetEnabledL(TBool aEnable) |
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145 { |
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146 if (aEnable) |
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147 { |
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148 // Enable the effect. |
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149 LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl::SetEnabledL(true)."); |
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150 iMStereoWideningControl->Enable(); |
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151 iMStereoWideningControl->SetStereoWideningLevel(KAMMSEMCDefaultStereoWideningLevel); |
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152 iMStereoWideningControl->Apply(); |
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153 } |
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154 else |
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155 { |
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156 // Disable the effect |
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157 |
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158 LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl::SetEnabledL(false)."); |
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159 iMStereoWideningControl->Disable(); |
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160 } |
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161 |
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162 } |
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163 |
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164 // ----------------------------------------------------------------------------- |
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165 // CAMMSEMCAudioVirtualizerControl::PrepareControlL |
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166 // Function which is called after the correct state is set in Player. |
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167 // ----------------------------------------------------------------------------- |
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168 // |
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169 void CAMMSEMCAudioVirtualizerControl::PrepareControlL() |
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170 { |
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171 // Perform the action only for the first time, skip if called afterwards |
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172 if (!iMStereoWideningControl) |
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173 { |
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174 LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl::PrepareControlL"); |
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175 //Create AudioVirtualizer Effect Control |
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176 iStreamControl = (static_cast<CMMAEMCAudioPlayer*>(iMMAPlayer))->StreamControl(); |
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177 iFactory = (static_cast<CMMAEMCAudioPlayer*>(iMMAPlayer))->MMFactory(); |
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178 |
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179 MEffectControl* temp(NULL); |
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180 User::LeaveIfError(iFactory->CreateEffectControl(KStereoWideningEffectControl, temp)); |
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181 iMStereoWideningControl = static_cast<MStereoWideningControl*>(temp); |
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182 User::LeaveIfError(iStreamControl->AddEffect(*iMStereoWideningControl)); |
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183 } |
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184 } |
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185 |
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186 // ----------------------------------------------------------------------------- |
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187 // CAMMSEMCAudioVirtualizerControl::DeallocateControl |
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188 // Function which is called after the correct state is set in Player. |
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189 // ----------------------------------------------------------------------------- |
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190 // |
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191 void CAMMSEMCAudioVirtualizerControl::DeallocateControl() |
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192 { |
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193 |
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194 if (iMStereoWideningControl) |
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195 { |
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196 LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl::DeallocateControl"); |
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197 |
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198 // StereoWidening for Audio can be disabled or enabled |
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199 TRAPD(err,iMStereoWideningControl->Disable()); |
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200 if (err != KErrNone) |
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201 { |
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202 //Some EMC Error |
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203 ELOG1( EJavaAMMS, "AMMS::CAMMSEMCAudioVirtualizerControl::DeallocateControl err = %d",err); |
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204 } |
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205 //return the control to factory |
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206 MEffectControl* temp = iMStereoWideningControl; |
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207 iStreamControl->RemoveEffect(*temp); |
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208 // Delete the Effect |
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209 MEffectControl* tempCtrl = iMStereoWideningControl; |
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210 iFactory->DeleteEffectControl(tempCtrl); |
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211 iMStereoWideningControl = NULL; |
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212 } |
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213 } |
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214 |
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215 const TDesC& CAMMSEMCAudioVirtualizerControl::ClassName() const |
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216 { |
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217 return KAMMSEMCAudioVirtualizerControl; |
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218 } |
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219 |
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220 |
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221 // ----------------------------------------------------------------------------- |
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222 // CAMMSEMCAudioVirtualizerControl::SetEnforcedL |
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223 // Enforces the effect to be in use. |
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224 // ----------------------------------------------------------------------------- |
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225 // |
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226 void CAMMSEMCAudioVirtualizerControl::SetEnforcedL(TBool aEnforced) |
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227 { |
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228 LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl:SetEnforcedL"); |
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229 // Indicate the effect is to be enforced or not. ETrue = Enforced. |
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230 |
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231 iMStereoWideningControl->Enforce(aEnforced); |
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232 |
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233 ApplySettingsL(); |
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234 |
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235 } |
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236 |
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237 // ----------------------------------------------------------------------------- |
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238 // CAMMSEMCAudioVirtualizerControl::Enforced |
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239 // Returns the current enforced setting of the effect. |
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240 // ----------------------------------------------------------------------------- |
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241 // |
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242 TBool CAMMSEMCAudioVirtualizerControl::Enforced() |
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243 { |
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244 // Returns ETrue if the effect is enforced, EFalse if not enforced. |
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245 TBool enforced; |
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246 iMStereoWideningControl->IsEnforced(enforced); |
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247 return enforced; |
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248 |
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249 } |
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250 |
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251 // ----------------------------------------------------------------------------- |
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252 // CAMMSEMCAudioVirtualizerControl::SetScopeL |
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253 // Sets the scope of the effect. |
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254 // ----------------------------------------------------------------------------- |
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255 // |
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256 void CAMMSEMCAudioVirtualizerControl::SetScopeL(TInt aScope) |
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257 { |
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258 LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl:SetScopeL"); |
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259 __ASSERT_DEBUG( |
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260 (aScope == CAMMSEffectControlGroup::EScopeLiveOnly), |
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261 User::Invariant()); |
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262 // Just to suppress warning in release build |
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263 (void)aScope; |
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264 } |
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265 |
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266 // ----------------------------------------------------------------------------- |
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267 // CAMMSEMCAudioVirtualizerControl::Scope |
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268 // Returns the scope in which the effect is present. |
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269 // ----------------------------------------------------------------------------- |
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270 // |
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271 TInt CAMMSEMCAudioVirtualizerControl::Scope() |
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272 { |
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273 // For now only the (LIVE_ONLY) scope is supported. |
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274 return CAMMSEffectControlGroup::EScopeLiveOnly; |
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275 } |
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276 |
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277 // ----------------------------------------------------------------------------- |
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278 // CAMMSEMCAudioVirtualizerControl::ApplySettingsL |
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279 // Apply changed settings if Effect is in enabled state. |
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280 // ----------------------------------------------------------------------------- |
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281 void CAMMSEMCAudioVirtualizerControl::ApplySettingsL() |
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282 { |
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283 LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl:ApplySettingsL called, checking state"); |
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284 TBool enabled; |
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285 iMStereoWideningControl->IsEnabled(enabled); |
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286 if (enabled) |
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287 { |
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288 LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCAudioVirtualizerControl:ApplySettingsL calling ApplyL"); |
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289 iMStereoWideningControl->Apply(); |
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290 } |
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291 } |
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292 |
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293 |
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294 // ----------------------------------------------------------------------------- |
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295 // CAMMSEMCAudioVirtualizerControl::ConstructL |
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296 // Symbian 2nd phase constructor can leave. |
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297 // ----------------------------------------------------------------------------- |
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298 void CAMMSEMCAudioVirtualizerControl::ConstructL() |
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299 { |
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300 // Create array for preset names |
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301 iPresetNames = new(ELeave) CDesCArrayFlat(1); |
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302 |
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303 // Set current preset to a negative value as it is not set yet |
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304 iCurrentPreset = -1; |
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305 |
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306 CAMMSEffectControl::ConstructL(); |
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307 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility = |
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308 new(ELeave)CAMMSEMCAudioVirtualizerEnvironmentalPresetUtility; |
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309 iAMMSEMCAudioVirtualizerEnvironmentalPresetUtility->ConstructL(); |
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310 } |
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311 |
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312 // ----------------------------------------------------------------------------- |
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313 // CAMMSEMCAudioVirtualizerControl::CAMMSEMCAudioVirtualizerControl |
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314 // C++ default constructor can NOT contain any code, that |
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315 // might leave. |
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316 // ----------------------------------------------------------------------------- |
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317 CAMMSEMCAudioVirtualizerControl::CAMMSEMCAudioVirtualizerControl( |
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318 CMMAPlayer* aPlayer) |
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319 : CAMMSEffectControl(aPlayer) |
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320 { |
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321 iMMAPlayer = aPlayer; |
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322 } |
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323 |
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324 // End of File |
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