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 TMSAUDIODTMFTONEPLAYER_H |
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19 #define TMSAUDIODTMFTONEPLAYER_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 "tmsdtmftoneplayerobserver.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 |
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35 namespace TMS { |
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36 |
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37 class TMSAudioDtmfTonePlayer : public MDevSoundObserver |
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38 { |
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39 public: |
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40 // Constructors and destructor |
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41 |
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42 /** |
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43 * Two-phased constructor. |
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44 */ |
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45 static TMSAudioDtmfTonePlayer* NewL(TMSDTMFTonePlayerObserver& obsrvr, |
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46 guint audioPreference, guint audioPriority); |
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47 |
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48 /** |
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49 * Destructor. |
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50 */ |
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51 virtual ~TMSAudioDtmfTonePlayer(); |
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52 |
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53 public: |
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54 |
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55 /** |
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56 * Sets volume. |
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57 * @param aVolume volume value or KDtmfSilent. |
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58 * @return None. |
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59 */ |
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60 void SetVolume(gint volume); |
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61 |
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62 /** |
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63 * Starts playing given dtmf tone infinitely. |
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64 * @param aTone Tone to be played. |
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65 * @return None. |
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66 */ |
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67 void PlayDtmfTone(TDes& tone); |
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68 |
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69 /** |
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70 * Cancels playing. |
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71 * @param None. |
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72 * @return None. |
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73 */ |
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74 void Cancel(); |
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75 |
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76 public: |
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77 //From MDevSoundObserver |
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78 /** |
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79 * See MDevSoundObserver |
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80 */ |
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81 void InitializeComplete(TInt aError); |
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82 |
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83 /** |
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84 * See MDevSoundObserver |
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85 */ |
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86 void ToneFinished(TInt aError); |
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87 |
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88 /** |
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89 * See MDevSoundObserver |
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90 */ |
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91 void BufferToBeFilled(CMMFBuffer* /*aBuffer*/) {} |
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92 |
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93 /** |
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94 * See MDevSoundObserver |
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95 */ |
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96 void PlayError(TInt /*aError*/) {} |
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97 |
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98 /** |
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99 * See MDevSoundObserver |
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100 */ |
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101 void BufferToBeEmptied(CMMFBuffer* /*aBuffer*/) {} |
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102 |
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103 /** |
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104 * See MDevSoundObserver |
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105 */ |
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106 void RecordError(TInt /*aError*/) {} |
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107 |
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108 /** |
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109 * See MDevSoundObserver |
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110 */ |
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111 void ConvertError(TInt /*aError*/) {} |
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112 /** |
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113 * See MDevSoundObserver |
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114 */ |
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115 void DeviceMessage(TUid /*aMessageType*/, const TDesC8& /*aMsg*/) {} |
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116 |
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117 protected: |
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118 |
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119 /** |
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120 * C++ default constructor. |
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121 */ |
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122 TMSAudioDtmfTonePlayer(TMSDTMFTonePlayerObserver& obsrvr, |
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123 guint audioPreference, guint audioPriority); |
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124 |
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125 void ConstructL(); |
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126 |
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127 /** |
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128 * Normalize tone. |
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129 * @param aTone dtmf tone. |
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130 * @return None. |
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131 */ |
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132 void Normalize(TChar& tone); |
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133 |
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134 private: |
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135 //new functions |
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136 |
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137 /** |
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138 * Converts the given value to the one that matches tha range used by |
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139 * CMMFDevSound. The CMMFDevSound uses valuess that can from 0 to the |
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140 * value returned by a call to CMMFDevSound::MaxVolume(). |
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141 */ |
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142 gint ConvertVolumeLevel(gint volume); |
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143 |
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144 protected: |
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145 // Data |
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146 |
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147 // Current volume setting. |
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148 gint iVolume; |
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149 |
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150 // DTMF player instance |
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151 CMMFDevSound* iDTMFPlayer; |
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152 |
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153 TMSDTMFTonePlayerObserver& iObserver; |
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154 guint iPref; |
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155 guint iPrior; |
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156 }; |
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157 |
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158 } //namespace TMS |
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159 |
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160 #endif // TMSAUDIODTMFTONEPLAYER_H |
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161 |
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162 // End of File |
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