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1 /* |
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2 * Copyright (c) 2005 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: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 |
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21 #ifndef CMCEREDCODEC_H |
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22 #define CMCEREDCODEC_H |
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23 |
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24 // INCLUDES |
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25 #include <mceaudiocodec.h> |
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26 #include <mcedefs.h> |
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27 |
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28 // CONSTANTS |
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29 |
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30 // Red Default Payload Type |
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31 const TUint8 KMceDefaultRedPayloadType = 99; |
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32 |
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33 // Default Sampling Rate |
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34 const TUint KMceRedSamplingFreq = 8000; |
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35 |
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36 // PTime and MaxPTime |
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37 const TUint KMceRedDefaultPtime = 20; |
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38 const TUint KMceRedDefaultMaxPtime = 200; |
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39 |
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40 |
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41 // CLASS DECLARATION |
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42 |
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43 /** |
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44 * Class for the Redundancy codec information. |
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45 * |
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46 * It checks the validity of inserted values for Red. |
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47 * |
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48 * @l |
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49 mceclient.lib |
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50 */ |
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51 class CMceRedCodec : public CMceAudioCodec |
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52 { |
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53 public: // Constructors and destructor |
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54 |
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55 /** |
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56 * Destructor. |
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57 */ |
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58 IMPORT_C ~CMceRedCodec(); |
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59 |
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60 public: // From base class |
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61 |
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62 /** |
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63 * Enable / Disable Voice Activity Detection. |
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64 * @param aEnableVAD, Boolean indicating whether to enable Voice Activity Detection |
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65 * @return KErrNotSupported if codec doesn't support VAD; otherwise KErrNone. |
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66 */ |
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67 IMPORT_C TInt EnableVAD(TBool aEnableVAD); |
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68 |
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69 /** |
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70 * Sets bitrate used with codec for encoding. |
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71 * @param aBitrate, bitrate value for encoding |
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72 * @return KErrNotSupported if codec doesn't support bitrate value issued; otherwise KErrNone. |
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73 */ |
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74 IMPORT_C TInt SetBitrate(TUint aBitrate); |
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75 |
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76 /** |
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77 * Sets bitrates allowed with codec. |
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78 * @param aBitrates, allowed bitrate values |
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79 * @return KErrNotSupported if codec doesn't support bitrate value issued; otherwise KErrNone. |
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80 */ |
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81 IMPORT_C TInt SetAllowedBitrates(TUint aBitrates); |
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82 |
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83 /** |
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84 * Sets the sampling frequency. |
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85 * @param aSamplingFreq, Sampling frequency to be used |
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86 * @return KErrNotSupported if codec doesn't support sampling frequency issued; otherwise KErrNone. |
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87 */ |
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88 IMPORT_C TInt SetSamplingFreq(TUint aSamplingFreq); |
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89 |
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90 /** |
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91 * Sets the packetization rate. |
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92 * @param aPTime, Packetization rate, must be multiple of audio frame size. |
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93 * @return KErrNotSupported if codec doesn't support packetrate value issued; otherwise KErrNone. |
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94 */ |
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95 IMPORT_C TInt SetPTime(TUint aPTime); |
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96 |
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97 /** |
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98 * Sets the maximum packetization rate. |
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99 * @param aMaxPTime, maximum allowed packetization rate, must be multiple of audio frame size. |
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100 * @return KErrNotSupported if codec doesn't support packetrate value issued; otherwise KErrNone. |
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101 */ |
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102 IMPORT_C TInt SetMaxPTime(TUint aMaxPTime); |
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103 |
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104 /** |
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105 * Sets the payload type identifier. |
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106 * @param aPayloadType payload type identifier. |
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107 * @return One of the standard system-wide error codes. |
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108 */ |
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109 IMPORT_C TInt SetPayloadType(TUint8 aPayloadType); |
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110 |
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111 /** |
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112 * Sets the codec mode. |
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113 * @param aCodecMode Codec mode |
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114 * @return KErrNotSupported if codec doesnt' support codec mode value issued; otherwise KErrNone. |
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115 */ |
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116 IMPORT_C TInt SetCodecMode(TUint aCodecMode); |
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117 |
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118 /** |
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119 * Clones codec, ownership is transferred. |
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120 * @return cloned codec |
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121 */ |
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122 IMPORT_C CMceAudioCodec* CloneL() const; |
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123 |
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124 /** |
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125 * Set redundancy payload types. |
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126 * @param aRedPaylodTypes, array of redundancy payload types |
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127 */ |
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128 IMPORT_C void SetRedPayloadTypesL( const RArray<TUint>& aRedPaylodTypes ); |
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129 |
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130 /** |
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131 * Get redundancy payload types. |
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132 * @param aRedPaylodTypes, on return contains current redundancy payload types |
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133 */ |
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134 IMPORT_C void RedPayloadTypesL( RArray<TUint>& aRedPayloadTypes ); |
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135 |
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136 public: |
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137 |
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138 /** |
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139 * Two-phased constructor. |
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140 * @param aSdpName sdp name |
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141 */ |
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142 static CMceRedCodec* NewL( TBuf8<KMceMaxSdpNameLength> aSdpName); |
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143 |
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144 /** |
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145 * Two-phased constructor. |
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146 * @param aSdpName sdp name |
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147 */ |
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148 static CMceRedCodec* NewLC(TBuf8<KMceMaxSdpNameLength> aSdpName); |
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149 |
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150 |
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151 private: |
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152 |
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153 /** |
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154 * C++ default constructor. |
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155 */ |
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156 CMceRedCodec(); |
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157 |
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158 /** |
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159 * By default Symbian 2nd phase constructor is private. |
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160 */ |
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161 void ConstructL( TBuf8<KMceMaxSdpNameLength> aSdpName); |
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162 |
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163 /** |
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164 * Sets the sdp name. |
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165 * @param aSdpName the sdp name |
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166 */ |
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167 void SetSdpNameL( const TDesC8& aSdpName ); |
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168 |
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169 //for testing |
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170 |
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171 MCE_UNIT_TEST_DEFS |
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172 }; |
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173 |
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174 |
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175 #endif |
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176 |
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177 // End of File |
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178 |