1 /* |
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2 * Copyright (c) 2003-2007 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: The CNssRecognitionHandler class performs the recognition function. |
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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 // INCLUDE FILES |
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20 #include <e32base.h> |
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21 #include <e32property.h> |
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22 #include "nssvascoreconstant.h" |
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23 |
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24 #include "nssvascrecognitionhandler.h" |
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25 #include "nssvasctagmgr.h" |
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26 #include "nssvascadaptationitem.h" |
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27 #include <nsssispeechrecognitionutilityobserver.h> |
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28 |
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29 #ifndef __WINS__ |
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30 // for hardware |
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31 #include <AudioPreference.h> |
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32 #else |
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33 // use default values for WINS |
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34 const TUint KAudioPriorityVoiceDial = 73; |
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35 |
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36 const TUint KAudioPrefVocosPlayback = 0x00030001; |
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37 const TUint KAudioPrefVocosTrain = 0x00020001; |
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38 const TUint KAudioPrefVocosRecog = 0x00010001; |
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39 #endif |
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40 #include "nssvascdbtagselectnotifier.h" |
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41 #include "nssvascoreconstant.h" |
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42 #include "nssvasmrecognizeinitcompletehandler.h" |
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43 #include "nssvascvasdbbuilder.h" |
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44 #include "rubydebug.h" |
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45 |
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46 // maximal number of results that can be handled |
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47 const TInt KMaxResults = 100; |
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48 |
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49 #ifdef _DEBUG |
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50 // Used under UDEB only |
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51 _LIT( KRecognitionHandlerPanic, "VasCNssRecognitionHandler.cpp" ); |
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52 #endif // _DEBUG |
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53 |
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54 |
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55 // ============================ MEMBER FUNCTIONS =============================== |
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56 |
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57 // ----------------------------------------------------------------------------- |
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58 // CNssRecognitionHandler::NewL |
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59 // Two-phased constructor. |
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60 // ----------------------------------------------------------------------------- |
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61 // |
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62 CNssRecognitionHandler* CNssRecognitionHandler::NewL() |
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63 { |
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64 RUBY_DEBUG_BLOCK( "CNssRecognitionHandler::NewL" ); |
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65 |
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66 // version of NewLC which leaves nothing on the cleanup stack |
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67 CNssRecognitionHandler* self=NewLC(); |
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68 CleanupStack::Pop( self ); |
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69 return self; |
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70 } |
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71 |
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72 // ----------------------------------------------------------------------------- |
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73 // CNssRecognitionHandler::NewLC |
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74 // Two-phased constructor. |
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75 // ----------------------------------------------------------------------------- |
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76 // |
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77 CNssRecognitionHandler* CNssRecognitionHandler::NewLC() |
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78 { |
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79 CNssRecognitionHandler* self = new (ELeave) CNssRecognitionHandler(); |
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80 CleanupStack::PushL(self); |
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81 // push onto cleanup stack |
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82 // (in case self->ConstructL leaves) |
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83 self->ConstructL(); // use two-stage construct |
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84 return self; |
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85 } |
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86 |
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87 // ----------------------------------------------------------------------------- |
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88 // CNssRecognitionHandler::~CNssRecognitionHandler |
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89 // Destructor |
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90 // ----------------------------------------------------------------------------- |
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91 // |
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92 CNssRecognitionHandler::~CNssRecognitionHandler() |
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93 { |
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94 RUBY_DEBUG0( "CNssRecognitionHandler::~CNssRecognitionHandler" ); |
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95 |
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96 Cleanup(); |
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97 |
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98 for ( TInt k( 0 ); k < iAdaptItemArray.Count(); k++ ) |
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99 { |
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100 iAdaptItemArray[k]->Disable(); |
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101 } |
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102 iAdaptItemArray.Close(); |
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103 |
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104 CNssVASDBBuilder::RemoveInstance(); // remove iVasDBBuilder instance |
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105 |
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106 TInt state( ERecognitionFail ); |
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107 RProperty::Get( KSINDUID, ERecognitionState, state ); |
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108 |
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109 if ( state == ERecognitionStarted || state == ERecognitionSpeechEnd ) |
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110 { |
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111 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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112 } |
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113 // Delete P&S property |
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114 RProperty::Delete( KSINDUID, ERecognitionState ); |
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115 } |
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116 |
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117 // ----------------------------------------------------------------------------- |
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118 // CNssRecognitionHandler::RecognizeInitL |
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119 // Method to perform initialization for the recognize funtion. |
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120 // ----------------------------------------------------------------------------- |
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121 // |
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122 MNssRecognitionHandler::TNssRecognitionResult CNssRecognitionHandler::RecognizeInitL( |
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123 MNssRecognizeInitCompleteHandler* aInitCompleteHandler, |
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124 const CArrayPtrFlat<MNssContext>& aRecognitionVocabulary, |
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125 TInt aMaxResults) |
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126 { |
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127 RUBY_DEBUG_BLOCK( "CNssRecognitionHandler::RecognizeInitL" ); |
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128 |
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129 MNssRecognitionHandler::TNssRecognitionResult res = EVasErrorNone; |
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130 |
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131 // Vocabulary independent initialization: |
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132 // CSISpeechRecognitionUtility and CSIClientResultSet. |
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133 res = CommonRecognizeInitL( aInitCompleteHandler, aMaxResults ); |
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134 |
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135 if ( res != EVasErrorNone ) |
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136 { |
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137 return( res ); |
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138 } |
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139 |
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140 // Agenda for vocab dependent init: |
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141 // 1. Get the list of global contexts from VAS DB. |
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142 // The information we need is: |
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143 // * Model Bank ID, which is the same for all contexts |
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144 // * Grammar ID for each context |
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145 // 2. Load a model bank from SRS DB. |
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146 // 3. Load the grammars from SRS DB. Each context has one grammar. |
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147 if ( !iContextList ) |
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148 { |
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149 iContextList = new (ELeave) TMNssContextList(1); |
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150 } |
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151 else |
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152 { |
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153 iContextList->Reset(); |
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154 } |
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155 |
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156 |
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157 for ( TInt k( 0 ); k < aRecognitionVocabulary.Count(); k++ ) |
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158 { |
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159 CNssContext* context = ((CNssContext*)aRecognitionVocabulary[k])->CopyL(); |
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160 CleanupStack::PushL( context ); |
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161 |
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162 iContextList->AppendL( context ); |
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163 |
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164 CleanupStack::Pop( context ); |
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165 } |
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166 iContextCount = iContextList->Count(); |
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167 |
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168 // Check if there are tags in the contexts. |
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169 // If there are, load a model bank. After that, further initializations |
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170 // follow: Loading lexicons and grammars. |
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171 // Check for Tags in contexts and continue recognition |
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172 TRAPD( err, HandleTagCheckL() ); |
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173 |
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174 if ( err != KErrNone ) |
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175 { |
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176 RUBY_DEBUG0( "CNssRecognitionHandler: TRAPD HandleTagCheckL() failed" ); |
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177 // Notify P&S |
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178 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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179 Cleanup(); |
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180 return EVasRecognitionInitFailed; |
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181 } |
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182 |
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183 return( EVasErrorNone ); |
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184 } |
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185 |
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186 // ----------------------------------------------------------------------------- |
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187 // CNssRecognitionHandler::RecognizeInitL |
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188 // Method to perform initialization for the recognize funtion. |
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189 // ----------------------------------------------------------------------------- |
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190 // |
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191 MNssRecognitionHandler::TNssRecognitionResult CNssRecognitionHandler::RecognizeInitL( |
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192 MNssRecognizeInitCompleteHandler* aInitCompleteHandler, |
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193 TInt aMaxResults) |
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194 { |
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195 RUBY_DEBUG_BLOCK( "CNssRecognitionHandler::RecognizeInitL" ); |
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196 |
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197 MNssRecognitionHandler::TNssRecognitionResult res = EVasErrorNone; |
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198 |
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199 // Vocabulary independent initialization: |
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200 // CSISpeechRecognitionUtility and CSIClientResultSet. |
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201 res = CommonRecognizeInitL( aInitCompleteHandler, aMaxResults ); |
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202 |
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203 if ( res != EVasErrorNone ) |
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204 { |
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205 return( res ); |
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206 } |
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207 |
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208 // Agenda for vocab dependent init: |
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209 // 1. Get the list of global contexts from VAS DB. |
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210 // The information we need is: |
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211 // * Model Bank ID, which is the same for all contexts |
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212 // * Grammar ID for each context |
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213 // 2. Load a model bank from SRS DB. |
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214 // 3. Load the grammars from SRS DB. Each context has one grammar. |
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215 |
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216 if ( iContextList ) |
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217 { |
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218 iContextList->Reset(); |
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219 delete iContextList; |
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220 } |
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221 |
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222 // Get Global Context List from Vas Db |
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223 iContextList = iContextMgr->GetGlobalContexts(); |
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224 |
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225 if ( !iContextList ) |
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226 { |
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227 return EVasRecognitionInitFailed; |
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228 } |
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229 |
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230 iContextCount = iContextList->Count(); |
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231 |
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232 |
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233 // Check for Tags in contexts and continue recognition |
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234 TRAPD( err, HandleTagCheckL() ); |
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235 |
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236 if ( err != KErrNone ) |
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237 { |
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238 RUBY_DEBUG0( "CNssRecognitionHandler: TRAPD HandleTagCheckL() failed" ); |
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239 |
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240 // Notify P&S |
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241 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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242 Cleanup(); |
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243 return EVasRecognitionInitFailed; |
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244 } |
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245 |
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246 return EVasErrorNone; |
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247 } |
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248 |
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249 // ----------------------------------------------------------------------------- |
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250 // CNssRecognitionHandler::Recognize |
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251 // Method to perform the recognize function. |
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252 // ----------------------------------------------------------------------------- |
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253 // |
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254 MNssRecognitionHandler::TNssRecognitionResult CNssRecognitionHandler::Recognize( |
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255 MNssRecognizeEventHandler* aEventHandler ) |
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256 { |
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257 RUBY_DEBUG0( "CNssRecognitionHandler::Recognize" ); |
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258 |
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259 if ( iRState != EVasWaitingForRecognize ) |
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260 { |
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261 RUBY_DEBUG0( "CNssRecognitionHandler::Recognize - Unexpected Request" ); |
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262 // Notify P&S |
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263 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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264 Cleanup(); |
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265 return EVasUnexpectedRequest; |
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266 } |
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267 |
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268 iEventHandler = aEventHandler; |
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269 |
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270 iRState = EVasWaitingForRecordStarted; |
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271 |
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272 RUBY_DEBUG0( "CNssRecognitionHandler: SRSF Record()" ); |
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273 |
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274 // Asynchronous call: next expected event: ERecordStarted |
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275 |
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276 TInt errorCode = iSrsApi->Record( KNssVASRecordTime ); |
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277 |
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278 if ( errorCode != KErrNone ) |
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279 { |
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280 RUBY_DEBUG1( "CNssRecognitionHandler: Record Err = %d", errorCode ); |
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281 |
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282 // Notify P&S |
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283 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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284 Cleanup(); |
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285 return EVasRecognitionFailed; |
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286 } |
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287 |
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288 return EVasErrorNone; |
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289 } |
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290 |
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291 // ----------------------------------------------------------------------------- |
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292 // CNssRecognitionHandler::PreStartSampling |
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293 // Method to start pre-sampling before the actual recognition start. |
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294 // ----------------------------------------------------------------------------- |
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295 // |
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296 MNssRecognitionHandler::TNssRecognitionResult |
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297 CNssRecognitionHandler::PreStartSampling( MNssRecognizeInitCompleteHandler* aInitCompleteHandler ) |
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298 { |
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299 RUBY_DEBUG0( "" ); |
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300 |
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301 // State check |
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302 if ( iRState != EVasIdle ) |
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303 { |
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304 RUBY_DEBUG0( "Unexpected Request" ); |
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305 return EVasUnexpectedRequest; |
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306 } |
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307 |
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308 // Check callback |
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309 if ( !aInitCompleteHandler ) |
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310 { |
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311 return EVasInvalidParameter; |
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312 } |
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313 |
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314 iInitCompleteHandler = aInitCompleteHandler; |
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315 |
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316 if ( !iSrsApi ) |
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317 { |
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318 TRAPD( err, CreateSrfL() ); |
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319 if ( err != KErrNone ) |
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320 { |
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321 RUBY_DEBUG0( "SRS creation fails" ); |
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322 iSrsApi = NULL; |
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323 Cleanup(); |
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324 return EVasRecognitionInitFailed; |
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325 } |
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326 } |
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327 |
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328 iSrsApi->SetAudioPriority( KAudioPriorityVoiceDial, |
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329 KAudioPrefVocosTrain, |
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330 KAudioPrefVocosPlayback, |
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331 KAudioPrefVocosRecog ); |
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332 |
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333 TInt errorCode = iSrsApi->PreStartSampling(); |
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334 |
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335 if ( errorCode != KErrNone ) |
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336 { |
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337 RUBY_DEBUG1( "PreStartSampling Err = %d", errorCode ); |
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338 Cleanup(); |
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339 return EVasRecognitionInitFailed; |
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340 } |
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341 |
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342 return EVasErrorNone; |
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343 } |
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344 |
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345 // ----------------------------------------------------------------------------- |
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346 // CNssRecognitionHandler::SelectTagL |
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347 // Method to initiate the Select Tag event. |
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348 // ----------------------------------------------------------------------------- |
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349 // |
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350 MNssRecognitionHandler::TNssRecognitionResult CNssRecognitionHandler::SelectTagL( |
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351 MNssTag *aClientTag) |
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352 { |
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353 return SelectTagL( aClientTag, ETrue ); |
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354 } |
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355 |
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356 // ----------------------------------------------------------------------------- |
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357 // CNssRecognitionHandler::SelectTagL |
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358 // Method to initiate the Select Tag event. |
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359 // ----------------------------------------------------------------------------- |
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360 // |
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361 MNssRecognitionHandler::TNssRecognitionResult CNssRecognitionHandler::SelectTagL( |
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362 MNssTag* aClientTag, |
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363 TBool aNotifyHandlers ) |
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364 { |
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365 RUBY_DEBUG_BLOCK( "CNssRecognitionHandler::SelectTagL" ); |
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366 |
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367 if ( iRState != EVasWaitingForSelectTag ) |
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368 { |
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369 RUBY_DEBUG0( "CNssRecognitionHandler::SelectTagL - Unexpected Request" ); |
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370 |
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371 // Notify P&S |
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372 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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373 |
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374 Cleanup(); |
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375 return EVasUnexpectedRequest; |
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376 } |
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377 |
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378 if ( !aClientTag ) |
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379 { |
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380 RUBY_DEBUG0( "CNssRecognitionHandler: Invalid Parameter" ); |
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381 |
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382 // Notify P&S |
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383 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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384 |
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385 Cleanup(); |
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386 return EVasInvalidParameter; |
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387 } |
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388 |
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389 // Check if we want to notify GlobalContext handlers |
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390 if ( !aNotifyHandlers ) |
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391 { |
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392 // No; just cleanup |
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393 Cleanup(); |
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394 } |
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395 else |
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396 { // Yes |
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397 // make a copy of the client tag, aClientTag, so the client can delete it |
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398 CNssTag* internalTag = ((CNssTag*)aClientTag)->CopyL(); |
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399 |
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400 Cleanup(); |
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401 |
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402 CNssDBTagSelectNotifier *selectNotifier = iVasDBBuilder->GetTagSelectNotifier(); |
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403 |
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404 selectNotifier->HandleSelection(internalTag); |
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405 |
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406 delete internalTag; |
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407 } |
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408 |
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409 return EVasErrorNone; |
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410 } |
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411 |
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412 // ----------------------------------------------------------------------------- |
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413 // CNssRecognitionHandler::RejectTagL |
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414 // Method to perform Reject Tag, i.e. blacklisting. |
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415 // ----------------------------------------------------------------------------- |
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416 // |
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417 MNssRecognitionHandler::TNssRecognitionResult CNssRecognitionHandler::RejectTagL( |
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418 MNssRejectTagCompleteHandler* aRejectTagCompleteHandler, |
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419 CArrayPtrFlat<MNssTag>* aClientTagList) |
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420 { |
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421 RUBY_DEBUG_BLOCK( "CNssRecognitionHandler::RejectTagL" ); |
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422 |
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423 if ( iRState != EVasWaitingForSelectTag ) |
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424 { |
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425 RUBY_DEBUG0( "CNssRecognitionHandler::RejectTagL - Unexpected Request" ); |
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426 |
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427 // Notify P&S |
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428 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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429 Cleanup(); |
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430 return EVasUnexpectedRequest; |
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431 } |
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432 |
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433 // Begin a Loop to unload rules. A rule is contained in a tag. |
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434 // The unload rule requests are Asynchronous. The |
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435 // loop is continued and completed in the event handler logic, |
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436 // MsruoEvent(aEvent=UnloadRuleComplete). |
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437 // Loop through the input client tag list to build a Rule List, one rule |
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438 // for each tag. Unload the rule corresponding to each tag. |
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439 // iRejectTagCurrentLoopCount and iRejectTagCount control the loop. |
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440 |
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441 iRejectTagCompleteHandler = aRejectTagCompleteHandler; |
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442 |
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443 if (aClientTagList == 0) |
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444 { |
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445 // client tag list is NULL error |
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446 RUBY_DEBUG0( "CNssRecognitionHandler: Invalid Parm: Tag List Null" ); |
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447 |
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448 // Notify P&S |
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449 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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450 Cleanup(); |
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451 return EVasInvalidParameter; |
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452 } |
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453 iRejectTagCount = aClientTagList->Count(); |
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454 |
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455 if (iRejectTagCount == 0) |
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456 { |
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457 // tag list is empty error |
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458 RUBY_DEBUG0( "NssRecognitionHandler: Invalid Parm: Tag List Empty" ); |
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459 |
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460 // Notify P&S |
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461 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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462 Cleanup(); |
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463 return EVasInvalidParameter; |
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464 } |
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465 |
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466 iRejectTagCurrentLoopCount = 0; |
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467 |
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468 if (!iRuleList) |
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469 { |
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470 iRuleList = new (ELeave) CArrayFixFlat<TRuleEntry>(iRejectTagCount); |
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471 } |
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472 |
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473 TRuleEntry ruleEntry; |
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474 |
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475 for ( TInt index=0; index < iRejectTagCount; index++ ) |
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476 { |
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477 CNssTag* tempTag = (CNssTag*)aClientTagList->At(index); |
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478 CNssSpeechItem* speechItem = (CNssSpeechItem*)tempTag->SpeechItem(); |
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479 TUint32 ruleID = speechItem->RuleID(); |
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480 |
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481 CNssContext* context = (CNssContext*)tempTag->Context(); |
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482 TUint32 grammarID = context->GrammarId(); |
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483 |
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484 ruleEntry.ruleId = ruleID; |
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485 ruleEntry.grammarId = grammarID; |
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486 |
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487 iRuleList->AppendL(ruleEntry); |
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488 } |
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489 |
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490 // get the first iRuleList entry = 0. The rest of the entries are |
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491 // processed in the event handler, MsruoEvent(aEvent=UnloadRuleComplete) |
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492 ruleEntry = iRuleList->At(iRejectTagCurrentLoopCount); |
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493 TUint32 ruleID = ruleEntry.ruleId; |
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494 TUint32 grammarID = ruleEntry.grammarId; |
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495 |
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496 iRState = EVasWaitingForUnloadRuleComplete; |
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497 |
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498 RUBY_DEBUG0( "CNssRecognitionHandler: SRSF UnloadRule()" ); |
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499 |
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500 TInt errorCode = iSrsApi->UnloadRule( (TSIGrammarID)grammarID, ruleID ); |
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501 if ( errorCode ) |
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502 { |
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503 RUBY_DEBUG1( "CNssRecognitionHandler: UnloadRule Err = %d", errorCode ); |
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504 |
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505 // Notify P&S |
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506 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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507 Cleanup(); |
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508 return EVasRejectTagFailed; |
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509 } |
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510 |
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511 return EVasErrorNone; |
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512 } |
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513 |
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514 // ----------------------------------------------------------------------------- |
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515 // CNssRecognitionHandler::Cancel |
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516 // Method to cancel the last recognition function. |
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517 // ----------------------------------------------------------------------------- |
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518 // |
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519 MNssRecognitionHandler::TNssRecognitionResult CNssRecognitionHandler::Cancel() |
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520 { |
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521 RUBY_DEBUG1( "CNssRecognitionHandler::Cancel() iRState = %d", iRState ); |
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522 |
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523 // a Cancel request for the Idle state requires no action. |
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524 if ( iRState == EVasIdle ) |
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525 { |
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526 return EVasErrorNone; |
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527 } |
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528 |
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529 // Notify P&S |
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530 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
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531 |
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532 // for all states except Idle call Cleanup which calls SRF cancel and |
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533 // transitions to Idle state. |
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534 Cleanup(); |
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535 return EVasErrorNone; |
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536 } |
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537 |
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538 // ----------------------------------------------------------------------------- |
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539 // CNssRecognitionHandler::GetAdaptationItemL |
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540 // Method to get the adaptation data. |
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541 // ----------------------------------------------------------------------------- |
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542 // |
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543 MNssAdaptationItem* CNssRecognitionHandler::GetAdaptationItemL(void) |
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544 { |
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545 RUBY_DEBUG_BLOCK( "CNssRecognitionHandler::GetAdaptationItemL" ); |
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546 |
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547 // Check state |
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548 if ( iRState != EVasWaitingForSelectTag ) |
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549 { |
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550 User::Leave( KErrNotReady ); |
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551 } |
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552 |
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553 // Client Result Set should be there since the state is what it is. |
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554 if ( !iSIClientResultSet ) |
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555 { |
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556 User::Leave( KErrCorrupt ); |
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557 } |
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558 |
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559 // Construct adaptation item |
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560 CNssAdaptationItem* adaptationItem = CNssAdaptationItem::NewL( this, iSIClientResultSet ); |
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561 // Adaptation item now owns the previous Client Result Set. |
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562 iSIClientResultSet = 0; |
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563 |
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564 // Add the item to our catalog of adaptation items. |
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565 CleanupStack::PushL( adaptationItem ); |
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566 User::LeaveIfError( iAdaptItemArray.Append( adaptationItem ) ); |
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567 CleanupStack::Pop( adaptationItem ); |
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568 |
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569 return( adaptationItem ); |
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570 } |
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571 |
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572 // ----------------------------------------------------------------------------- |
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573 // CNssRecognitionHandler::GetAdaptationItemL |
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574 // Method to get the adaptation data. |
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575 // ----------------------------------------------------------------------------- |
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576 // |
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577 void CNssRecognitionHandler::RemoveAdaptationItem(CNssAdaptationItem* anItem) |
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578 { |
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579 for ( TInt k( 0 ); k < iAdaptItemArray.Count(); k++ ) |
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580 { |
|
581 if ( iAdaptItemArray[k] == anItem ) |
|
582 { |
|
583 iAdaptItemArray.Remove( k ); |
|
584 break; |
|
585 } |
|
586 } |
|
587 } |
|
588 |
|
589 // ----------------------------------------------------------------------------- |
|
590 // CNssRecognitionHandler::MsruoEvent |
|
591 // Method to process the events from SRS utility object |
|
592 // ----------------------------------------------------------------------------- |
|
593 // |
|
594 void CNssRecognitionHandler::MsruoEvent( TUid aEvent, TInt aResult ) |
|
595 { |
|
596 RUBY_DEBUG2( "CNssRecognitionHandler::MsruoEvent Event = 0x%x, Result = %d", aEvent.iUid, aResult ); |
|
597 |
|
598 switch ( aEvent.iUid ) |
|
599 { |
|
600 case KUidAsrEventLoadModelsVal: |
|
601 { |
|
602 if (aResult == KErrNone) |
|
603 { |
|
604 DoLoadModelsComplete(); |
|
605 } |
|
606 else |
|
607 { |
|
608 DoLoadModelsFailed(); |
|
609 } |
|
610 break; |
|
611 } |
|
612 |
|
613 case KUidAsrEventLoadGrammarVal: |
|
614 { |
|
615 if (aResult == KErrNone) |
|
616 { |
|
617 DoLoadGrammarComplete(); |
|
618 } |
|
619 else |
|
620 { |
|
621 DoLoadGrammarFailed(); |
|
622 } |
|
623 break; |
|
624 } |
|
625 case KUidAsrEventRecognitionReadyVal: |
|
626 { |
|
627 if (aResult == KErrNone) |
|
628 { |
|
629 DoRecognitionReady(); |
|
630 } |
|
631 else |
|
632 { |
|
633 DoRecognitionFailed(); |
|
634 } |
|
635 break; |
|
636 } |
|
637 case KUidAsrEventRecognitionVal: |
|
638 { |
|
639 |
|
640 if (aResult == KErrNone) |
|
641 { |
|
642 DoRecognitionComplete(); |
|
643 } |
|
644 else if ((aResult == KErrAsrNoSpeech) || |
|
645 (aResult == KErrAsrSpeechTooEarly) || |
|
646 (aResult == KErrAsrSpeechTooLong) || |
|
647 (aResult == KErrAsrSpeechTooShort)) |
|
648 { |
|
649 DoRecognitionFailedNoSpeech(aResult); |
|
650 } |
|
651 else if (aResult == KErrAsrNoMatch) |
|
652 { |
|
653 DoRecognitionFailedNoMatch(); |
|
654 } |
|
655 // Handle Cancelled the same as Failed |
|
656 else |
|
657 { |
|
658 DoRecognitionFailed(); |
|
659 } |
|
660 break; |
|
661 } |
|
662 case KUidAsrEventRecordStartedVal: |
|
663 { |
|
664 DoRecordStarted(); |
|
665 break; |
|
666 } |
|
667 case KUidAsrEventRecordVal: |
|
668 { |
|
669 if (aResult != KErrNone) |
|
670 { |
|
671 DoRecordFailed(aResult); |
|
672 } |
|
673 // ignore Record KErrNone |
|
674 break; |
|
675 } |
|
676 case KUidAsrEventEouDetectedVal: |
|
677 { |
|
678 DoEouDetected(); |
|
679 break; |
|
680 } |
|
681 |
|
682 case KUidAsrEventUnloadRuleVal: |
|
683 { |
|
684 if (aResult == KErrNone) |
|
685 { |
|
686 DoUnloadRuleComplete(); |
|
687 } |
|
688 else |
|
689 { |
|
690 DoUnloadRuleFailed(); |
|
691 } |
|
692 break; |
|
693 } |
|
694 |
|
695 case KUidAsrEventAdaptVal: |
|
696 { |
|
697 if ( iRState != EVasDirectAdaptation && iRState != EVasIdleAdaptation ) |
|
698 { |
|
699 #ifdef _DEBUG |
|
700 User::Panic( KRecognitionHandlerPanic, __LINE__ ); |
|
701 #endif |
|
702 return; |
|
703 } |
|
704 |
|
705 if ( iRState == EVasIdleAdaptation ) |
|
706 { |
|
707 Cleanup(); |
|
708 } |
|
709 |
|
710 if ( aResult == KErrNone ) |
|
711 { |
|
712 iAdaptationHandler->HandleAdaptComplete( KErrNone ); |
|
713 } |
|
714 else{ |
|
715 iAdaptationHandler->HandleAdaptComplete( KErrGeneral ); |
|
716 } |
|
717 iRState = EVasWaitingForSelectTag; |
|
718 break; |
|
719 } |
|
720 |
|
721 case KUidAsrEventRemoveRuleVal: |
|
722 { |
|
723 if ( iRState == EVasCorrectingPluginDatabase ) |
|
724 { |
|
725 if ( iWait.IsStarted() ) |
|
726 { |
|
727 iWait.AsyncStop(); |
|
728 } |
|
729 } |
|
730 else |
|
731 { |
|
732 Cleanup(); |
|
733 } |
|
734 break; |
|
735 } |
|
736 |
|
737 case KUidAsrEventPreStartSamplingVal: |
|
738 { |
|
739 DoPreStartSamplingComplete( aResult ); |
|
740 break; |
|
741 } |
|
742 |
|
743 default: |
|
744 { |
|
745 UnexpectedEvent(); |
|
746 } |
|
747 } |
|
748 } |
|
749 |
|
750 // ----------------------------------------------------------------------------- |
|
751 // CNssRecognitionHandler::CNssRecognitionHandler |
|
752 // C++ default constructor can NOT contain any code, that |
|
753 // might leave. |
|
754 // ----------------------------------------------------------------------------- |
|
755 // |
|
756 CNssRecognitionHandler::CNssRecognitionHandler() |
|
757 { |
|
758 } |
|
759 |
|
760 // ----------------------------------------------------------------------------- |
|
761 // CNssRecognitionHandler::ConstructL |
|
762 // Symbian 2nd phase constructor can leave. |
|
763 // ----------------------------------------------------------------------------- |
|
764 // |
|
765 void CNssRecognitionHandler::ConstructL() |
|
766 { |
|
767 RUBY_DEBUG_BLOCK( "CNssRecognitionHandler::ConstructL" ); |
|
768 iVasDBBuilder = CNssVASDBBuilder::InstanceL(); |
|
769 iVasDBBuilder->InitializeL(); |
|
770 |
|
771 iContextMgr = iVasDBBuilder->GetContextMgr(); |
|
772 |
|
773 iTagMgr = iVasDBBuilder->GetTagMgr(); |
|
774 |
|
775 iRState = EVasIdle; |
|
776 |
|
777 // Define P&S property |
|
778 TInt err = RProperty::Define( KSINDUID, ERecognitionState, RProperty::EInt); |
|
779 if ( err != KErrNotFound && err != KErrAlreadyExists ) |
|
780 { |
|
781 User::LeaveIfError( err ); |
|
782 } |
|
783 } |
|
784 |
|
785 // ----------------------------------------------------------------------------- |
|
786 // CNssRecognitionHandler::CleanupRecognizeInitFailed |
|
787 // Perform required cleanup to get back to the Idle state and issue the |
|
788 // HandleRecognizeInitError event with RecognizeInitFailed error code |
|
789 // ----------------------------------------------------------------------------- |
|
790 // |
|
791 void CNssRecognitionHandler::CleanupRecognizeInitFailed() |
|
792 { |
|
793 RUBY_DEBUG0( "CNssRecognitionHandler::CleanupRecognizeInitFailed" ); |
|
794 |
|
795 // Notify P&S |
|
796 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
797 |
|
798 Cleanup(); |
|
799 iInitCompleteHandler->HandleRecognizeInitComplete( |
|
800 MNssRecognizeInitCompleteHandler::EVasRecognizeInitFailed ); |
|
801 } |
|
802 |
|
803 // ----------------------------------------------------------------------------- |
|
804 // CNssRecognitionHandler::CleanupRecognizeFailed |
|
805 // Perform required cleanup to get back to the Idle state and issue the |
|
806 // HandleRecognizeError event with RecognizeFailed error code |
|
807 // ----------------------------------------------------------------------------- |
|
808 // |
|
809 void CNssRecognitionHandler::CleanupRecognizeFailed() |
|
810 { |
|
811 RUBY_DEBUG0( "CNssRecognitionHandler::CleanupRecognizeFailed" ); |
|
812 |
|
813 // Notify P&S |
|
814 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
815 |
|
816 Cleanup(); |
|
817 iEventHandler->HandleRecognizeComplete( NULL, |
|
818 MNssRecognizeEventHandler::EVasRecognizeFailed); |
|
819 } |
|
820 |
|
821 // ----------------------------------------------------------------------------- |
|
822 // CNssRecognitionHandler::CleanupRejectTagFailed |
|
823 // Perform required cleanup to get back to the Idle state and issue the |
|
824 // HandleRejectTagError event with RejectTagFailed error code |
|
825 // ----------------------------------------------------------------------------- |
|
826 // |
|
827 void CNssRecognitionHandler::CleanupRejectTagFailed() |
|
828 { |
|
829 RUBY_DEBUG0( "CNssRecognitionHandler::CleanupRejectTagFailed" ); |
|
830 |
|
831 // Notify P&S |
|
832 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
833 |
|
834 Cleanup(); |
|
835 iRejectTagCompleteHandler->HandleRejectTagComplete( |
|
836 MNssRejectTagCompleteHandler::EVasRejectTagFailed); |
|
837 } |
|
838 |
|
839 // ----------------------------------------------------------------------------- |
|
840 // CNssRecognitionHandler::Cleanup |
|
841 // Perform required cleanup to get back to the Idle state |
|
842 // ----------------------------------------------------------------------------- |
|
843 // |
|
844 void CNssRecognitionHandler::Cleanup() |
|
845 { |
|
846 RUBY_DEBUG0( "CNssRecognitionHandler::Cleanup" ); |
|
847 |
|
848 if ( iTagMgr ) |
|
849 { |
|
850 iTagMgr->CancelGetTag(); |
|
851 } |
|
852 if ( iContextMgr ) |
|
853 { |
|
854 iContextMgr->CancelGetContext(); |
|
855 } |
|
856 DeleteSrf(); |
|
857 ClearContextList(); |
|
858 ClearTagList(); |
|
859 ClearRuleList(); |
|
860 ClearContextStatus(); |
|
861 |
|
862 iRState = EVasIdle; |
|
863 } |
|
864 |
|
865 // ----------------------------------------------------------------------------- |
|
866 // CNssRecognitionHandler:: DeleteSrf |
|
867 // Gracefully terminate and delete the SRF object, iSrsApi. |
|
868 // ----------------------------------------------------------------------------- |
|
869 // |
|
870 void CNssRecognitionHandler::DeleteSrf() |
|
871 { |
|
872 if ( iSrsApi ) |
|
873 { |
|
874 RUBY_DEBUG0( "CNssRecognitionHandler::DeleteSrf" ); |
|
875 |
|
876 iSrsApi->CancelUtility(); |
|
877 |
|
878 iSrsApi->EndRecSession(); // no need to check return code |
|
879 |
|
880 iSrsApi->SetEventHandler(NULL); |
|
881 |
|
882 delete iSrsApi; |
|
883 |
|
884 iSrsApi=NULL; |
|
885 } |
|
886 |
|
887 if ( iSIClientResultSet ) |
|
888 { |
|
889 delete iSIClientResultSet; |
|
890 iSIClientResultSet = NULL; |
|
891 } |
|
892 } |
|
893 |
|
894 // ----------------------------------------------------------------------------- |
|
895 // CNssRecognitionHandler::ClearContextList |
|
896 // Delete the context objects from iContextList |
|
897 // ----------------------------------------------------------------------------- |
|
898 // |
|
899 void CNssRecognitionHandler::ClearContextList() |
|
900 { |
|
901 if (iContextList) |
|
902 { |
|
903 iContextList->ResetAndDestroy(); |
|
904 delete iContextList; |
|
905 iContextList = NULL; |
|
906 } |
|
907 } |
|
908 |
|
909 // ----------------------------------------------------------------------------- |
|
910 // CNssRecognitionHandler::ClearTagList |
|
911 // Delete the tag objects and tag list, iTagList |
|
912 // ----------------------------------------------------------------------------- |
|
913 // |
|
914 void CNssRecognitionHandler::ClearTagList() |
|
915 { |
|
916 // The client deletes iTagList, its pointers, and its tags |
|
917 // There is a window in RecognitionComplete while looping |
|
918 // through the ClientResultData and getting corresponding tags from |
|
919 // VasDb (GetTag). If a VasDb error occurs during this loop, |
|
920 // Recognition still owns the iTagList tags and must delete them. |
|
921 // Otherwise at the end of the GetTag loop the list is given to the |
|
922 // client, and the client deletes the tags. |
|
923 |
|
924 // if iTagList is not NULL, delete iTagList and its tags. |
|
925 |
|
926 if ( iTagList ) |
|
927 { |
|
928 iTagList->ResetAndDestroy(); |
|
929 delete iTagList; |
|
930 iTagList = NULL; |
|
931 } |
|
932 } |
|
933 |
|
934 // ----------------------------------------------------------------------------- |
|
935 // CNssRecognitionHandler::ClearRuleList |
|
936 // Delete the TRuleEntry objects from iRuleList |
|
937 // ----------------------------------------------------------------------------- |
|
938 // |
|
939 void CNssRecognitionHandler::ClearRuleList() |
|
940 { |
|
941 if ( iRuleList ) |
|
942 { |
|
943 iRuleList->Reset(); |
|
944 delete iRuleList; |
|
945 iRuleList = NULL; |
|
946 } |
|
947 } |
|
948 |
|
949 // ----------------------------------------------------------------------------- |
|
950 // CNssRecognitionHandler::ClearContextStatus |
|
951 // Delete the entries from iContextStatus |
|
952 // ----------------------------------------------------------------------------- |
|
953 // |
|
954 void CNssRecognitionHandler::ClearContextStatus() |
|
955 { |
|
956 if ( iContextStatus ) |
|
957 { |
|
958 iContextStatus->Reset(); |
|
959 delete iContextStatus; |
|
960 iContextStatus = NULL; |
|
961 } |
|
962 } |
|
963 |
|
964 // ----------------------------------------------------------------------------- |
|
965 // CNssRecognitionHandler::UnexpectedEvent |
|
966 // Unexpected event occurred. . |
|
967 // ----------------------------------------------------------------------------- |
|
968 // |
|
969 void CNssRecognitionHandler::UnexpectedEvent() |
|
970 { |
|
971 RUBY_DEBUG1( "CNssRecognitionHandler - UnexpectedEvent() iRState = %d", iRState ); |
|
972 |
|
973 switch ( iRState ) |
|
974 { |
|
975 case EVasIdle: |
|
976 { |
|
977 RUBY_DEBUG0( "CNssRecognitionHandler - Idle, Unexpected Srs Event" ); |
|
978 break; |
|
979 } |
|
980 |
|
981 // RecognitionInit |
|
982 case EVasWaitingForLoadModelsComplete: |
|
983 case EVasWaitingForLoadLexiconComplete: |
|
984 case EVasWaitingForLoadGrammarComplete: |
|
985 case EVasWaitingForRecognitionReadyRecognitionInit: |
|
986 { |
|
987 CleanupRecognizeInitFailed(); |
|
988 break; |
|
989 } |
|
990 |
|
991 // Recognition |
|
992 case EVasWaitingForRecordStarted: |
|
993 case EVasWaitingForEouDetected: |
|
994 case EVasWaitingForRecognitionComplete: |
|
995 { |
|
996 CleanupRecognizeFailed(); |
|
997 break; |
|
998 } |
|
999 |
|
1000 // RejectTag |
|
1001 case EVasWaitingForUnloadRuleComplete: |
|
1002 case EVasWaitingForRecognitionReadyRejectTag: |
|
1003 { |
|
1004 CleanupRejectTagFailed(); |
|
1005 break; |
|
1006 } |
|
1007 case EVasWaitingForRecognize: |
|
1008 case EVasWaitingForSelectTag: |
|
1009 { |
|
1010 // There is no event handler to return to. |
|
1011 // Notify P&S |
|
1012 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
1013 Cleanup(); |
|
1014 RUBY_DEBUG1( "CNssRecognitionHandler - Invalid State = %d", iRState ); |
|
1015 break; |
|
1016 } |
|
1017 default: |
|
1018 { |
|
1019 // unknown state - do not know event handler to return to |
|
1020 // Notify P&S |
|
1021 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
1022 Cleanup(); |
|
1023 RUBY_DEBUG1( "CNssRecognitionHandler - Unknown State = %d", iRState ); |
|
1024 } |
|
1025 } |
|
1026 } |
|
1027 |
|
1028 // ----------------------------------------------------------------------------- |
|
1029 // CNssRecognitionHandler::DoPreStartSamplingComplete |
|
1030 // Handle PreStartSampling SRSF event |
|
1031 // ----------------------------------------------------------------------------- |
|
1032 // |
|
1033 void CNssRecognitionHandler::DoPreStartSamplingComplete( TInt aError ) |
|
1034 { |
|
1035 iInitCompleteHandler->HandlePreSamplingStarted( aError ); |
|
1036 } |
|
1037 |
|
1038 // ----------------------------------------------------------------------------- |
|
1039 // CNssRecognitionHandler::DoLoadModelsComplete |
|
1040 // Handle LoadModelsComplete SRF event |
|
1041 // ----------------------------------------------------------------------------- |
|
1042 // |
|
1043 void CNssRecognitionHandler::DoLoadModelsComplete() |
|
1044 { |
|
1045 if ( iRState != EVasWaitingForLoadModelsComplete ) |
|
1046 { |
|
1047 UnexpectedEvent(); |
|
1048 return; |
|
1049 } |
|
1050 /* iRState = EVasWaitingForLoadLexiconComplete; |
|
1051 TUint32 lexiconId = iContextList-> |
|
1052 At(iContextCurrentLoopCount)->LexiconId(); |
|
1053 |
|
1054 TInt errorCode = iSrsApi->LoadLexicon( (TSILexiconID)lexiconId ); |
|
1055 if (errorCode) |
|
1056 { |
|
1057 CleanupRecognizeInitFailed(); |
|
1058 } |
|
1059 */ |
|
1060 iRState = EVasWaitingForLoadGrammarComplete; |
|
1061 |
|
1062 // iContextCurrentLoopCount is 0 |
|
1063 // set loop count to -1 so Load Grammar Complete converts it back to 0 |
|
1064 iContextCurrentLoopCount = -1; |
|
1065 DoLoadGrammarComplete(); |
|
1066 } |
|
1067 |
|
1068 // ----------------------------------------------------------------------------- |
|
1069 // CNssRecognitionHandler::DoLoadModelsFailed |
|
1070 // Handle LoadModelsFailed SRF event |
|
1071 // ----------------------------------------------------------------------------- |
|
1072 // |
|
1073 void CNssRecognitionHandler::DoLoadModelsFailed() |
|
1074 { |
|
1075 if ( iRState != EVasWaitingForLoadModelsComplete ) |
|
1076 { |
|
1077 UnexpectedEvent(); |
|
1078 return; |
|
1079 } |
|
1080 CleanupRecognizeInitFailed(); |
|
1081 } |
|
1082 |
|
1083 // ----------------------------------------------------------------------------- |
|
1084 // CNssRecognitionHandler::DoLoadLexiconComplete |
|
1085 // Handle LoadLexiconComplete SRF event |
|
1086 // ----------------------------------------------------------------------------- |
|
1087 // |
|
1088 void CNssRecognitionHandler::DoLoadLexiconComplete() |
|
1089 { |
|
1090 if ( iRState != EVasWaitingForLoadLexiconComplete ) |
|
1091 { |
|
1092 UnexpectedEvent(); |
|
1093 return; |
|
1094 } |
|
1095 iRState = EVasWaitingForLoadGrammarComplete; |
|
1096 |
|
1097 // iContextCurrentLoopCount is 0 |
|
1098 // set loop count to -1 so Load Grammar Complete converts it back to 0 |
|
1099 iContextCurrentLoopCount--; |
|
1100 DoLoadGrammarComplete(); |
|
1101 } |
|
1102 |
|
1103 // ----------------------------------------------------------------------------- |
|
1104 // CNssRecognitionHandler::DoLoadLexiconFailed |
|
1105 // Handle LoadLexiconFailed SRF event |
|
1106 // ----------------------------------------------------------------------------- |
|
1107 // |
|
1108 void CNssRecognitionHandler::DoLoadLexiconFailed() |
|
1109 { |
|
1110 if ( iRState != EVasWaitingForLoadLexiconComplete ) |
|
1111 { |
|
1112 UnexpectedEvent(); |
|
1113 return; |
|
1114 } |
|
1115 CleanupRecognizeInitFailed(); |
|
1116 } |
|
1117 |
|
1118 // ----------------------------------------------------------------------------- |
|
1119 // CNssRecognitionHandler::DoLoadGrammarComplete |
|
1120 // Handle LoadGrammarComplete SRF event |
|
1121 // ----------------------------------------------------------------------------- |
|
1122 // |
|
1123 void CNssRecognitionHandler::DoLoadGrammarComplete() |
|
1124 { |
|
1125 if ( iRState != EVasWaitingForLoadGrammarComplete ) |
|
1126 { |
|
1127 UnexpectedEvent(); |
|
1128 return; |
|
1129 } |
|
1130 // if there are more contexts, |
|
1131 // continue loading Grammars, into the SRS |
|
1132 iContextCurrentLoopCount++; |
|
1133 |
|
1134 while ( iContextCurrentLoopCount < iContextCount ) |
|
1135 { |
|
1136 TBool status = iContextStatus->At( iContextCurrentLoopCount ); |
|
1137 // if True, there are tags in the context load the grammar |
|
1138 if ( status ) |
|
1139 { |
|
1140 TUint32 grammarId = iContextList-> |
|
1141 At( iContextCurrentLoopCount )->GrammarId(); |
|
1142 TInt errorCode = iSrsApi->LoadGrammar( (TSIGrammarID) grammarId ); |
|
1143 if ( errorCode ) |
|
1144 { |
|
1145 RUBY_DEBUG1( "CNssRecognitionHandler: LoadGrammar Err = %d", errorCode ); |
|
1146 CleanupRecognizeInitFailed(); |
|
1147 } |
|
1148 return; |
|
1149 } |
|
1150 |
|
1151 // else False, skip the context and go to the next |
|
1152 else |
|
1153 { |
|
1154 iContextCurrentLoopCount++; |
|
1155 } |
|
1156 } |
|
1157 |
|
1158 // are done loading contexts; |
|
1159 iRState = EVasWaitingForRecognitionReadyRecognitionInit; |
|
1160 |
|
1161 RUBY_DEBUG0( "CNssRecognitionHandler: SRF Recognize" ); |
|
1162 |
|
1163 // Asynchronous call: next expected event: ERecognitionReady |
|
1164 // dereference iClientResult ptr to make it a reference |
|
1165 TInt errorCode = iSrsApi->Recognize( *iSIClientResultSet ); |
|
1166 |
|
1167 if ( errorCode ) // Check if errorCode is zero (KErrNone) or non-zero. |
|
1168 { |
|
1169 RUBY_DEBUG1( "CNssRecognitionHandler: Recognize Err = %d", errorCode ); |
|
1170 CleanupRecognizeInitFailed(); |
|
1171 } |
|
1172 } |
|
1173 |
|
1174 // ----------------------------------------------------------------------------- |
|
1175 // CNssRecognitionHandler::DoLoadGrammarFailed |
|
1176 // Handle LoadGrammarFailed SRF event |
|
1177 // ----------------------------------------------------------------------------- |
|
1178 // |
|
1179 void CNssRecognitionHandler::DoLoadGrammarFailed() |
|
1180 { |
|
1181 if ( iRState != EVasWaitingForLoadGrammarComplete ) |
|
1182 { |
|
1183 UnexpectedEvent(); |
|
1184 return; |
|
1185 } |
|
1186 CleanupRecognizeInitFailed(); |
|
1187 } |
|
1188 |
|
1189 // ----------------------------------------------------------------------------- |
|
1190 // CNssRecognitionHandler::DoRecognitionReady |
|
1191 // Handle RecognitionReady SRF event |
|
1192 // ----------------------------------------------------------------------------- |
|
1193 // |
|
1194 void CNssRecognitionHandler::DoRecognitionReady() |
|
1195 { |
|
1196 if ( iRState == EVasWaitingForRecognitionReadyRecognitionInit ) |
|
1197 { |
|
1198 ClearContextStatus(); |
|
1199 iRState = EVasWaitingForRecognize; |
|
1200 |
|
1201 RUBY_DEBUG0( "CNssRecognitionHandler: HandleRecognizeInitComplete" ); |
|
1202 |
|
1203 iInitCompleteHandler->HandleRecognizeInitComplete( |
|
1204 MNssRecognizeInitCompleteHandler::EVasErrorNone ); |
|
1205 } |
|
1206 else if ( iRState == EVasWaitingForRecognitionReadyRejectTag ) |
|
1207 { |
|
1208 iRState = EVasWaitingForRecognize; |
|
1209 |
|
1210 RUBY_DEBUG0( "CNssRecognitionHandler: HandleRejectTagComplete" ); |
|
1211 |
|
1212 iRejectTagCompleteHandler->HandleRejectTagComplete( |
|
1213 MNssRejectTagCompleteHandler::EVasErrorNone ); |
|
1214 } |
|
1215 else |
|
1216 { |
|
1217 UnexpectedEvent(); |
|
1218 } |
|
1219 } |
|
1220 |
|
1221 // ----------------------------------------------------------------------------- |
|
1222 // CNssRecognitionHandler::DoRecognitionComplete |
|
1223 // Handle RecognitionComplete SRF event |
|
1224 // ----------------------------------------------------------------------------- |
|
1225 // |
|
1226 void CNssRecognitionHandler::DoRecognitionComplete() |
|
1227 { |
|
1228 if ( iRState != EVasWaitingForRecognitionComplete ) |
|
1229 { |
|
1230 UnexpectedEvent(); |
|
1231 return; |
|
1232 } |
|
1233 |
|
1234 TInt resultSetCount = iSIClientResultSet->ResultCount(); |
|
1235 |
|
1236 // allocate the Tag List - the client is responsible for deleting this |
|
1237 if (!iTagList) |
|
1238 { |
|
1239 iTagList = new CArrayPtrFlat<CNssTag>( 1 ); |
|
1240 if ( !iTagList ) |
|
1241 { |
|
1242 RUBY_DEBUG0( "CNssRecognitionHandler: TRAPD new CTAG Array failed" ); |
|
1243 CleanupRecognizeFailed(); |
|
1244 return; |
|
1245 } |
|
1246 } |
|
1247 |
|
1248 // Loop to convert result set data to tags and put the tags |
|
1249 // into a Tag List |
|
1250 // Since getTag is asynchronous the loop continues at |
|
1251 // member function GetTagCompleted(). Use loop control variables: |
|
1252 // iTagCurrentLoopCount and iTagCount |
|
1253 |
|
1254 iTagCurrentLoopCount = 0; |
|
1255 iTagCount = resultSetCount; |
|
1256 /* |
|
1257 const CSDClientResult& clientResult = iClientResultSet->At(0); |
|
1258 */ |
|
1259 TInt count( iSIClientResultSet->ResultCount() ); |
|
1260 TInt k( 0 ); |
|
1261 TInt err( KErrNone ); |
|
1262 |
|
1263 for ( k = 0; k < count; k++ ) |
|
1264 { |
|
1265 const CSIClientResult* clientResult( NULL ); |
|
1266 TRAP( err, clientResult = &iSIClientResultSet->AtL( k ) ); |
|
1267 if ( err != KErrNone ) |
|
1268 { |
|
1269 break; |
|
1270 } |
|
1271 |
|
1272 // Get the tag from DB |
|
1273 CNssTag* tag = iTagMgr->GetTag( |
|
1274 clientResult->GrammarID(), |
|
1275 clientResult->RuleID() ); |
|
1276 |
|
1277 if ( !tag ) |
|
1278 { |
|
1279 RUBY_DEBUG0( "CNssRecognitionHandler::DoRecognitionComplete found a tag which is NOT in VAS database" ); |
|
1280 TNssRState oldState = iRState; |
|
1281 iRState = EVasCorrectingPluginDatabase; |
|
1282 |
|
1283 TInt error = iSrsApi->RemoveRule( clientResult->GrammarID(), clientResult->RuleID() ); |
|
1284 if ( error == KErrNone && !iWait.IsStarted() ) |
|
1285 { |
|
1286 iWait.Start(); |
|
1287 } |
|
1288 iRState = oldState; |
|
1289 } |
|
1290 else |
|
1291 { |
|
1292 // Append it to the "our" tag list (which will be copied |
|
1293 // to produce client tag list) |
|
1294 TRAP( err, iTagList->AppendL( tag ) ); |
|
1295 |
|
1296 if ( err != KErrNone ) |
|
1297 { |
|
1298 break; |
|
1299 } |
|
1300 } |
|
1301 } |
|
1302 |
|
1303 // If no tags could be found |
|
1304 if ( iTagList->Count() == 0 ) |
|
1305 { |
|
1306 RUBY_DEBUG0( "CNssRecognitionHandler::DoRecognitionComplete no tags found at all" ); |
|
1307 // Cleans and makes the "RecognizeFailed" callback. |
|
1308 CleanupRecognizeFailed(); |
|
1309 return; |
|
1310 } |
|
1311 |
|
1312 // Copy the tag list. The copy is sent to the client. |
|
1313 CArrayPtrFlat<MNssTag>* clientTagList = NULL; |
|
1314 |
|
1315 clientTagList = new CArrayPtrFlat<MNssTag>(1); |
|
1316 |
|
1317 if ( clientTagList == 0 ) |
|
1318 { |
|
1319 // Cleans and makes the "RecognizeFailed" callback. |
|
1320 CleanupRecognizeFailed(); |
|
1321 return; |
|
1322 } |
|
1323 |
|
1324 for ( k = 0; k < iTagList->Count(); k++ ) |
|
1325 { |
|
1326 MNssTag* tag = STATIC_CAST( MNssTag*, (*iTagList)[k] ); |
|
1327 |
|
1328 TRAP( err, clientTagList->AppendL( tag ) ); |
|
1329 |
|
1330 if ( err != KErrNone ) |
|
1331 { |
|
1332 RUBY_DEBUG0( "CRecognitionHandler: TRAPD DestList AppendL failed" ); |
|
1333 |
|
1334 // Don't do the "ResetAndDestroy()" : iTagList still owns the tags. |
|
1335 clientTagList->Reset(); |
|
1336 delete clientTagList; |
|
1337 |
|
1338 // Cleans and makes the "RecognizeFailed" callback. |
|
1339 CleanupRecognizeFailed(); |
|
1340 return; |
|
1341 } |
|
1342 } |
|
1343 |
|
1344 iRState = EVasWaitingForSelectTag; |
|
1345 |
|
1346 // After this, clientTagList owns the tags: |
|
1347 iTagList->Reset(); |
|
1348 delete iTagList; |
|
1349 iTagList = 0; |
|
1350 |
|
1351 RUBY_DEBUG0( "CRecognitionHandler: HandleRecognizeComplete" ); |
|
1352 |
|
1353 // Notify P&S |
|
1354 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionSuccess ); |
|
1355 |
|
1356 iEventHandler->HandleRecognizeComplete( |
|
1357 clientTagList, MNssRecognizeEventHandler::EVasErrorNone ); |
|
1358 |
|
1359 // const CSIClientResult& clientResult = iSIClientResultSet->AtL(0); |
|
1360 |
|
1361 /******************** Debug recognized tags *********************/ |
|
1362 /* |
|
1363 RFs session; |
|
1364 RFile file; |
|
1365 _LIT( aFileName, "c:\\documents\\recotag.txt" ); |
|
1366 |
|
1367 session.Connect(); |
|
1368 if ( file.Open( session, aFileName, EFileWrite ) != KErrNone ) |
|
1369 { |
|
1370 if ( file.Create( session, aFileName, EFileWrite ) != KErrNone ) |
|
1371 { |
|
1372 User::Panic( _L("SDContrlDebug"), __LINE__ ); |
|
1373 } |
|
1374 } |
|
1375 |
|
1376 for ( TInt k( 0 ); k < iSIClientResultSet->ResultCount(); k++ ) |
|
1377 { |
|
1378 const CSIClientResult& clientResult = iSIClientResultSet->AtL(k); |
|
1379 |
|
1380 TBuf8<100> debugBuf; |
|
1381 debugBuf.AppendFormat( _L8("Recognized tag with RID:%d, GID:%d\n"), clientResult.RuleID(), clientResult.GrammarID() ); |
|
1382 file.Write( debugBuf ); |
|
1383 } |
|
1384 |
|
1385 |
|
1386 file.Close(); |
|
1387 session.Close(); |
|
1388 */ |
|
1389 /****************************************************************/ |
|
1390 |
|
1391 // get next tag |
|
1392 /* TUint32 grammarId = clientResult.GrammarID(); |
|
1393 TUint32 ruleId = clientResult.RuleID(); |
|
1394 |
|
1395 TInt dbErrorCode; |
|
1396 dbErrorCode = iTagMgr->GetTag( this, |
|
1397 grammarId, |
|
1398 ruleId); |
|
1399 if (dbErrorCode!=KErrNone) |
|
1400 { |
|
1401 CleanupRecognizeFailed(); |
|
1402 } |
|
1403 */ |
|
1404 } |
|
1405 |
|
1406 // ----------------------------------------------------------------------------- |
|
1407 // CNssRecognitionHandler::DoRecognitionFailedNoSpeech |
|
1408 // Handle RecognitionFailedNoSpeech, RecognitionFailedTooEarly, |
|
1409 // RecognitionFailedTooLong, and RecognitionFailedTooShort SRF events |
|
1410 // ----------------------------------------------------------------------------- |
|
1411 // |
|
1412 void CNssRecognitionHandler::DoRecognitionFailedNoSpeech( TInt aResult ) |
|
1413 { |
|
1414 if ( iRState != EVasWaitingForRecognitionComplete ) |
|
1415 { |
|
1416 UnexpectedEvent(); |
|
1417 return; |
|
1418 } |
|
1419 |
|
1420 MNssRecognizeEventHandler::TNssRecognizeError errCode; |
|
1421 errCode = MNssRecognizeEventHandler::EVasRecognizeFailed; |
|
1422 if ( aResult == KErrAsrNoSpeech ) |
|
1423 { |
|
1424 errCode = MNssRecognizeEventHandler::EVasRecognitionFailedNoSpeech; |
|
1425 } |
|
1426 else if ( aResult == KErrAsrSpeechTooEarly ) |
|
1427 { |
|
1428 errCode = MNssRecognizeEventHandler::EVasRecognitionFailedTooEarly; |
|
1429 } |
|
1430 else if ( aResult == KErrAsrSpeechTooLong ) |
|
1431 { |
|
1432 errCode = MNssRecognizeEventHandler::EVasRecognitionFailedTooLong; |
|
1433 } |
|
1434 else if ( aResult == KErrAsrSpeechTooShort ) |
|
1435 { |
|
1436 errCode = MNssRecognizeEventHandler::EVasRecognitionFailedTooShort; |
|
1437 } |
|
1438 |
|
1439 // Notify P&S |
|
1440 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
1441 |
|
1442 Cleanup(); |
|
1443 iEventHandler->HandleRecognizeComplete( NULL, errCode ); |
|
1444 } |
|
1445 |
|
1446 // ----------------------------------------------------------------------------- |
|
1447 // CNssRecognitionHandler::DoRecognitionFailedNoMatch |
|
1448 // Handle RecognitionFailedNoMatch SRF event |
|
1449 // ----------------------------------------------------------------------------- |
|
1450 // |
|
1451 void CNssRecognitionHandler::DoRecognitionFailedNoMatch() |
|
1452 { |
|
1453 if ( iRState == EVasWaitingForRecognitionReadyRecognitionInit ) |
|
1454 { |
|
1455 CleanupRecognizeInitFailed(); |
|
1456 } |
|
1457 else if ( iRState == EVasWaitingForRecognitionComplete ) |
|
1458 { |
|
1459 // Notify P&S |
|
1460 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
1461 Cleanup(); |
|
1462 iEventHandler->HandleRecognizeComplete( NULL, |
|
1463 MNssRecognizeEventHandler::EVasRecognitionFailedNoMatch ); |
|
1464 } |
|
1465 else if ( iRState == EVasWaitingForRecognitionReadyRejectTag ) |
|
1466 { |
|
1467 // Notify P&S |
|
1468 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
1469 Cleanup(); |
|
1470 iRejectTagCompleteHandler->HandleRejectTagComplete( |
|
1471 MNssRejectTagCompleteHandler::EVasNoTagInContexts); |
|
1472 } |
|
1473 else |
|
1474 { |
|
1475 UnexpectedEvent(); |
|
1476 } |
|
1477 } |
|
1478 |
|
1479 // ----------------------------------------------------------------------------- |
|
1480 // CNssRecognitionHandler::DoRecognitionFailed |
|
1481 // Handle RecognitionFailed SRF event |
|
1482 // ----------------------------------------------------------------------------- |
|
1483 // |
|
1484 void CNssRecognitionHandler::DoRecognitionFailed() |
|
1485 { |
|
1486 switch ( iRState ) |
|
1487 { |
|
1488 case EVasWaitingForRecognitionReadyRecognitionInit: |
|
1489 { |
|
1490 CleanupRecognizeInitFailed(); |
|
1491 break; |
|
1492 } |
|
1493 case EVasWaitingForRecordStarted: |
|
1494 case EVasWaitingForEouDetected: |
|
1495 case EVasWaitingForRecognitionComplete: |
|
1496 { |
|
1497 CleanupRecognizeFailed(); |
|
1498 break; |
|
1499 } |
|
1500 case EVasWaitingForRecognitionReadyRejectTag: |
|
1501 { |
|
1502 CleanupRejectTagFailed(); |
|
1503 break; |
|
1504 } |
|
1505 default: |
|
1506 { |
|
1507 UnexpectedEvent(); |
|
1508 } |
|
1509 } |
|
1510 } |
|
1511 |
|
1512 // ----------------------------------------------------------------------------- |
|
1513 // CNssRecognitionHandler::DoRecordStarted |
|
1514 // Handle RecordStarted SRF event |
|
1515 // ----------------------------------------------------------------------------- |
|
1516 // |
|
1517 void CNssRecognitionHandler::DoRecordStarted() |
|
1518 { |
|
1519 if ( iRState != EVasWaitingForRecordStarted ) |
|
1520 { |
|
1521 UnexpectedEvent(); |
|
1522 return; |
|
1523 } |
|
1524 iRState = EVasWaitingForEouDetected; |
|
1525 |
|
1526 // Notify P&S |
|
1527 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionStarted ); |
|
1528 |
|
1529 iEventHandler->HandleRecordStarted(); |
|
1530 } |
|
1531 |
|
1532 // ----------------------------------------------------------------------------- |
|
1533 // CNssRecognitionHandler::DoRecordFailed |
|
1534 // Handle RecordFailed SRF event |
|
1535 // ----------------------------------------------------------------------------- |
|
1536 // |
|
1537 void CNssRecognitionHandler::DoRecordFailed( TInt aResult ) |
|
1538 { |
|
1539 if ( iRState != EVasWaitingForEouDetected ) |
|
1540 { |
|
1541 UnexpectedEvent(); |
|
1542 return; |
|
1543 } |
|
1544 if ( ( aResult == KErrDied ) || |
|
1545 ( aResult == KErrAccessDenied ) ) |
|
1546 { |
|
1547 |
|
1548 Cleanup(); |
|
1549 iEventHandler->HandleRecognizeComplete( NULL, |
|
1550 MNssRecognizeEventHandler::EVasRecognizeAccessDeny ); |
|
1551 } |
|
1552 else |
|
1553 { |
|
1554 CleanupRecognizeFailed(); |
|
1555 } |
|
1556 } |
|
1557 |
|
1558 // ----------------------------------------------------------------------------- |
|
1559 // CNssRecognitionHandler::DoEouDetected |
|
1560 // Handle EouDetected SRF event |
|
1561 // ----------------------------------------------------------------------------- |
|
1562 // |
|
1563 void CNssRecognitionHandler::DoEouDetected() |
|
1564 { |
|
1565 if ( iRState != EVasWaitingForEouDetected ) |
|
1566 { |
|
1567 UnexpectedEvent(); |
|
1568 return; |
|
1569 } |
|
1570 iRState = EVasWaitingForRecognitionComplete; |
|
1571 // Notify P&S |
|
1572 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionSpeechEnd ); |
|
1573 |
|
1574 iEventHandler->HandleEouDetected(); |
|
1575 } |
|
1576 |
|
1577 // ----------------------------------------------------------------------------- |
|
1578 // CNssRecognitionHandler::DoUnloadRuleComplete |
|
1579 // Handle UnloadRuleComplete SRF event |
|
1580 // ----------------------------------------------------------------------------- |
|
1581 // |
|
1582 void CNssRecognitionHandler::DoUnloadRuleComplete() |
|
1583 { |
|
1584 if ( iRState != EVasWaitingForUnloadRuleComplete ) |
|
1585 { |
|
1586 UnexpectedEvent(); |
|
1587 return; |
|
1588 } |
|
1589 // if there are more tags |
|
1590 // continue unloading rules, from the SRS |
|
1591 iRejectTagCurrentLoopCount++; |
|
1592 if ( iRejectTagCurrentLoopCount < iRejectTagCount ) |
|
1593 { |
|
1594 TRuleEntry ruleEntry = iRuleList->At( iRejectTagCurrentLoopCount ); |
|
1595 TUint32 ruleID = ruleEntry.ruleId; |
|
1596 TUint32 grammarID = ruleEntry.grammarId; |
|
1597 |
|
1598 RUBY_DEBUG0( "CNssRecognitionHandler: SRF UnloadRule" ); |
|
1599 |
|
1600 TInt errorCode = iSrsApi->UnloadRule( (TSIGrammarID)grammarID, ruleID ); |
|
1601 if ( errorCode ) |
|
1602 { |
|
1603 RUBY_DEBUG1( "CNssRecognitionHandler: UnloadRule Err = %d", errorCode ); |
|
1604 |
|
1605 CleanupRejectTagFailed(); |
|
1606 } |
|
1607 } |
|
1608 else |
|
1609 { |
|
1610 ClearRuleList(); |
|
1611 iRState = EVasWaitingForRecognitionReadyRejectTag; |
|
1612 |
|
1613 RUBY_DEBUG0( "CNssRecognitionHandler: SRF Recognize" ); |
|
1614 |
|
1615 // dereference iClientResult ptr to make it a reference |
|
1616 //TInt errorCode = iSrsApi->Recognize(*iClientResultSet); |
|
1617 TInt errorCode = iSrsApi->Recognize( *iSIClientResultSet ); |
|
1618 if ( errorCode ) |
|
1619 { |
|
1620 RUBY_DEBUG1( "CNssRecognitionHandler: Recognize Err = %d", errorCode ); |
|
1621 |
|
1622 CleanupRejectTagFailed(); |
|
1623 } |
|
1624 } |
|
1625 } |
|
1626 |
|
1627 // ----------------------------------------------------------------------------- |
|
1628 // CNssRecognitionHandler::DoUnloadRuleFailed |
|
1629 // Handle UnloadRuleFailed SRF event |
|
1630 // ----------------------------------------------------------------------------- |
|
1631 // |
|
1632 void CNssRecognitionHandler::DoUnloadRuleFailed() |
|
1633 { |
|
1634 ClearRuleList(); |
|
1635 if ( iRState != EVasWaitingForUnloadRuleComplete ) |
|
1636 { |
|
1637 UnexpectedEvent(); |
|
1638 return; |
|
1639 } |
|
1640 CleanupRejectTagFailed(); |
|
1641 } |
|
1642 |
|
1643 // ----------------------------------------------------------------------------- |
|
1644 // CNssRecognitionHandler::HandleTagCheckL |
|
1645 // Loop through the contexts to build the ContextStatus array. |
|
1646 // If there are any tags in any context, |
|
1647 // Then proceed on with recognition and load models, |
|
1648 // Else return with EVasNoTagInContexts. |
|
1649 // ----------------------------------------------------------------------------- |
|
1650 // |
|
1651 void CNssRecognitionHandler::HandleTagCheckL() |
|
1652 { |
|
1653 TBool anyTag = EFalse; |
|
1654 CNssContext* context; |
|
1655 |
|
1656 if ( !iContextStatus ) |
|
1657 { |
|
1658 iContextStatus = new (ELeave) CArrayFixFlat<TBool>( iContextCount ); |
|
1659 } |
|
1660 |
|
1661 __ASSERT_DEBUG( iContextCount == iContextList->Count(), User::Panic( KRecognitionHandlerPanic, __LINE__ ) ); |
|
1662 |
|
1663 for ( TInt index=0; index < iContextCount; index++ ) |
|
1664 { |
|
1665 context = iContextList->At( index ); |
|
1666 // if a tag exists in the requested context, status is set to true |
|
1667 // if there are no tags in the requested context, status is set to false |
|
1668 TBool status = iContextMgr->TagExist( context ); |
|
1669 |
|
1670 iContextStatus->AppendL( status ); |
|
1671 if ( status ) |
|
1672 { |
|
1673 // if a tag is found, set to True |
|
1674 anyTag = ETrue; |
|
1675 } |
|
1676 } |
|
1677 |
|
1678 if ( anyTag ) |
|
1679 { |
|
1680 // True: there are tags, continue recognition |
|
1681 iRState = EVasWaitingForLoadModelsComplete; |
|
1682 |
|
1683 TUint32 modelBankID = iContextList->At( 0 )->ModelBankId(); |
|
1684 TInt errorCode = iSrsApi->LoadModels( (TSIModelBankID)modelBankID ); |
|
1685 if ( errorCode ) |
|
1686 { |
|
1687 RUBY_DEBUG1( "CNssRecognitionHandler: LoadModels Err = %d", errorCode ); |
|
1688 |
|
1689 CleanupRecognizeInitFailed(); |
|
1690 } |
|
1691 } |
|
1692 else |
|
1693 { |
|
1694 // Notify P&S |
|
1695 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
1696 // False: There are no tags in any context. |
|
1697 Cleanup(); |
|
1698 iInitCompleteHandler->HandleRecognizeInitComplete( |
|
1699 MNssRecognizeInitCompleteHandler::EVasNoTagInContexts ); |
|
1700 } |
|
1701 } |
|
1702 |
|
1703 // ----------------------------------------------------------------------------- |
|
1704 // CNssRecognitionHandler::CreateSrfL |
|
1705 // Create the SRF object, iSrsApi. |
|
1706 // ----------------------------------------------------------------------------- |
|
1707 // |
|
1708 void CNssRecognitionHandler::CreateSrfL() |
|
1709 { |
|
1710 RUBY_DEBUG_BLOCK( "CNssRecognitionHandler::CreateSrfL" ); |
|
1711 // passing the CNssRecognitionHandler object as an active event handler |
|
1712 // and passing the VAS Api's UID |
|
1713 iSrsApi = CNssSiUtilityWrapper::NewL(*this, KNssVASApiUid); |
|
1714 } |
|
1715 |
|
1716 // ----------------------------------------------------------------------------- |
|
1717 // CNssRecognitionHandler::AdaptL |
|
1718 // Starts adaptation. Called by MNssAdaptationItem. |
|
1719 // ----------------------------------------------------------------------------- |
|
1720 // |
|
1721 void CNssRecognitionHandler::AdaptL( MNssAdaptationEventHandler* aHandler, |
|
1722 CSIClientResultSet* aResult, |
|
1723 TInt aCorrect ) |
|
1724 { |
|
1725 RUBY_DEBUG_BLOCK( "CNssRecognitionHandler::AdaptL" ); |
|
1726 |
|
1727 if ( !aHandler || !aResult ) |
|
1728 { |
|
1729 User::Leave( KErrArgument ); |
|
1730 } |
|
1731 |
|
1732 // We can do an adaptation either |
|
1733 // * directly after a recognition (direct adaptation), or |
|
1734 // * when the state is idle (idle adaptation). |
|
1735 // In IDLE Adaptation: We need to create and destroy SRS Utility object. |
|
1736 // In DIRECT Adaptation: We need to return to the same state where we left. |
|
1737 |
|
1738 if ( iRState == EVasIdle ) |
|
1739 { |
|
1740 iRState = EVasIdleAdaptation; |
|
1741 |
|
1742 CreateSrfL(); |
|
1743 |
|
1744 User::LeaveIfError( iSrsApi->Adapt( *aResult, aCorrect ) ); |
|
1745 } |
|
1746 else if ( iRState == EVasWaitingForSelectTag ) |
|
1747 { |
|
1748 iRState = EVasDirectAdaptation; |
|
1749 |
|
1750 if ( !iSrsApi ) |
|
1751 { |
|
1752 User::Leave( KErrNotReady ); |
|
1753 } |
|
1754 |
|
1755 User::LeaveIfError( iSrsApi->Adapt( *aResult, aCorrect ) ); |
|
1756 } |
|
1757 else |
|
1758 { |
|
1759 User::Leave( KErrNotReady ); |
|
1760 } |
|
1761 |
|
1762 iAdaptationHandler = aHandler; |
|
1763 } |
|
1764 |
|
1765 // ----------------------------------------------------------------------- |
|
1766 // CNssRecognitionHandler::CommonRecognizeInitL |
|
1767 // |
|
1768 // Called by RecognizeInitL -variants |
|
1769 // to perform those initializations, |
|
1770 // which do not depend on vocabulary. |
|
1771 // ----------------------------------------------------------------------- |
|
1772 // |
|
1773 MNssRecognitionHandler::TNssRecognitionResult |
|
1774 CNssRecognitionHandler::CommonRecognizeInitL( |
|
1775 MNssRecognizeInitCompleteHandler* aInitCompleteHandler, |
|
1776 TInt aMaxResults ) |
|
1777 { |
|
1778 // Agenda: |
|
1779 // 1. Create CSISpeechRecognitoinUtility object |
|
1780 // |
|
1781 // 2. Call SetPrioritySettings & StartRecSession |
|
1782 // - nothing interesting happens there |
|
1783 // |
|
1784 // 4. Initialize CSIClientResultSet for storing recongition results |
|
1785 // |
|
1786 if ( iRState != EVasIdle ) |
|
1787 { |
|
1788 RUBY_DEBUG0( "CNssRecognitionHandler::RecognizeInitL - Unexpected Request" ); |
|
1789 |
|
1790 // Notify P&S |
|
1791 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
1792 Cleanup(); |
|
1793 return EVasUnexpectedRequest; |
|
1794 } |
|
1795 |
|
1796 // Check callback |
|
1797 if ( !aInitCompleteHandler ) |
|
1798 { |
|
1799 return EVasInvalidParameter; |
|
1800 } |
|
1801 iInitCompleteHandler = aInitCompleteHandler; |
|
1802 |
|
1803 // Check that aMaxResults is reasonable (100 is an arbitrary limit) |
|
1804 if ( aMaxResults < 0 || aMaxResults > KMaxResults ) |
|
1805 { |
|
1806 return EVasInvalidParameter; |
|
1807 } |
|
1808 iMaxResults = aMaxResults; |
|
1809 |
|
1810 if ( !iSrsApi ) |
|
1811 { |
|
1812 // Put a trap in case instantiation of SRF leaves |
|
1813 TRAPD( err, CreateSrfL() ); |
|
1814 if ( err != KErrNone ) |
|
1815 { |
|
1816 RUBY_DEBUG0( "CNssRecognitionHandler::RecognizeInitL - create SRS fail" ); |
|
1817 |
|
1818 iSrsApi = NULL; // For clean up purpose |
|
1819 |
|
1820 // Notify P&S |
|
1821 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
1822 |
|
1823 Cleanup(); |
|
1824 return EVasRecognitionInitFailed; |
|
1825 } |
|
1826 } |
|
1827 |
|
1828 // Set audio priority. If some other application wants to play/record |
|
1829 // while we are recognizing, these priorities determine who gets the access. |
|
1830 iSrsApi->SetAudioPriority( KAudioPriorityVoiceDial, |
|
1831 KAudioPrefVocosTrain, |
|
1832 KAudioPrefVocosPlayback, |
|
1833 KAudioPrefVocosRecog ); |
|
1834 |
|
1835 // speaker independent mode recognition session |
|
1836 TInt errorCode = iSrsApi->StartRecSession( ENSSSiMode ); |
|
1837 |
|
1838 if ( errorCode != KErrNone ) |
|
1839 { |
|
1840 RUBY_DEBUG1( "CNssRecognitionHandler: StartRecSession Err = %d", errorCode ); |
|
1841 |
|
1842 // Notify P&S |
|
1843 RProperty::Set( KSINDUID, ERecognitionState, ERecognitionFail ); |
|
1844 |
|
1845 Cleanup(); |
|
1846 return EVasRecognitionInitFailed; |
|
1847 } |
|
1848 |
|
1849 // Create the structure for recognition results |
|
1850 if ( !iSIClientResultSet ) |
|
1851 { |
|
1852 iSIClientResultSet = CSIClientResultSet::NewL(); |
|
1853 } |
|
1854 iSIClientResultSet->SetMaxResultsL( iMaxResults ); |
|
1855 |
|
1856 return EVasErrorNone; |
|
1857 } |
|
1858 |
|
1859 // End of file |
|