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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Telephony Multimedia Service |
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15 * |
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16 */ |
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17 |
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18 #ifndef CPEAUDIODTMFTONEPLAYER_H |
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19 #define CPEAUDIODTMFTONEPLAYER_H |
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20 |
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21 // INCLUDES |
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22 #include <glib.h> |
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23 #include <sounddevice.h> |
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24 #include "dtmftoneplayerobserver.h" |
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25 |
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26 // FORWARD DECLARATIONS |
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27 class CMMFDevSound; |
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28 |
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29 // CLASS DECLARATION |
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30 |
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31 /** |
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32 * plays DTMF tones using media server |
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33 * |
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34 * @lib audiohandling.lib |
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35 */ |
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36 |
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37 namespace TMS { |
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38 |
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39 class TMSAudioDtmfTonePlayer : public MDevSoundObserver |
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40 { |
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41 public: |
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42 // Constructors and destructor |
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43 |
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44 /** |
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45 * Two-phased constructor. |
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46 */ |
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47 static TMSAudioDtmfTonePlayer* NewL(TMSDTMFTonePlayerObserver& obsrvr, |
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48 guint aAudioPreference, guint aAudioPriority); |
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49 |
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50 /** |
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51 * Destructor. |
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52 */ |
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53 virtual ~TMSAudioDtmfTonePlayer(); |
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54 |
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55 public: |
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56 |
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57 /** |
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58 * Sets volume. |
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59 * @param aVolume volume value or KDtmfSilent. |
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60 * @return None. |
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61 */ |
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62 void SetVolume(gint aVolume); |
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63 |
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64 /** |
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65 * Starts playing given dtmf tone infinitely. |
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66 * @param aTone Tone to be played. |
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67 * @return None. |
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68 */ |
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69 //void PlayDtmfTone( TChar aTone ); |
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70 void PlayDtmfTone(TDes& tone); |
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71 |
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72 /** |
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73 * Cancels playing. |
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74 * @param None. |
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75 * @return None. |
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76 */ |
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77 void Cancel(); |
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78 |
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79 public: |
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80 //From MDevSoundObserver |
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81 /** |
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82 * See MDevSoundObserver |
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83 */ |
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84 void InitializeComplete(TInt aError); |
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85 |
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86 /** |
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87 * See MDevSoundObserver |
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88 */ |
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89 void ToneFinished(TInt aError); |
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90 |
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91 /** |
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92 * See MDevSoundObserver |
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93 */ |
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94 void BufferToBeFilled(CMMFBuffer* aBuffer); |
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95 |
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96 /** |
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97 * See MDevSoundObserver |
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98 */ |
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99 void PlayError(TInt aError); |
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100 |
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101 /** |
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102 * See MDevSoundObserver |
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103 */ |
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104 void BufferToBeEmptied(CMMFBuffer* aBuffer); |
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105 |
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106 /** |
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107 * See MDevSoundObserver |
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108 */ |
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109 void RecordError(TInt aError); |
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110 |
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111 /** |
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112 * See MDevSoundObserver |
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113 */ |
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114 void ConvertError(TInt aError); |
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115 /** |
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116 * See MDevSoundObserver |
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117 */ |
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118 void DeviceMessage(TUid aMessageType, const TDesC8& aMsg); |
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119 |
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120 protected: |
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121 |
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122 /** |
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123 * C++ default constructor. |
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124 */ |
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125 TMSAudioDtmfTonePlayer(TMSDTMFTonePlayerObserver& obsrvr, |
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126 guint aAudioPreference, guint aAudioPriority); |
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127 |
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128 void ConstructL(); |
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129 |
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130 /** |
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131 * Normalize tone. |
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132 * @param aTone dtmf tone. |
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133 * @return None. |
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134 */ |
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135 void Normalize(TChar& aTone); |
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136 |
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137 private: |
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138 //new functions |
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139 |
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140 /** |
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141 * Converts the given value to the one that matches tha range used by |
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142 * CMMFDevSound. The CMMFDevSound uses valuess that can from 0 to the |
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143 * value returned by a call to CMMFDevSound::MaxVolume(). |
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144 */ |
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145 gint ConvertVolume(gint aVolume); |
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146 |
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147 protected: |
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148 // Data |
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149 |
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150 // Current volume setting. |
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151 gint iVolume; |
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152 |
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153 // DTMF player instance |
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154 CMMFDevSound* iDTMFPlayer; |
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155 |
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156 TMSDTMFTonePlayerObserver& iObserver; |
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157 guint iPref; |
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158 guint iPrior; |
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159 |
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160 }; |
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161 |
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162 } //namespace TMS |
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163 |
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164 #endif // CPEAUDIODTMFTONEPLAYER_H |
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165 |
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166 // End of File |