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1 /* |
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2 * Copyright (c) 2004-2006 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: Class is used for configuring G711 codec. |
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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 __MCC_CODEC_G711_H__ |
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22 #define __MCC_CODEC_G711_H__ |
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23 |
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24 // INCLUDES |
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25 #include "mmcccodecinformation.h" |
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26 |
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27 // CONSTANTS |
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28 |
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29 // G.711 Codec possible bitrates |
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30 const TUint KG711Bitrate64 = 64000; |
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31 const TInt KG711DefaultHwFrameTime( 20 ); |
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32 const TUint8 KG711PayloadTypePCMU( 0 ); |
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33 const TUint8 KG711PayloadTypePCMA( 8 ); |
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34 |
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35 // CLASS DECLARATION |
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36 /** |
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37 * Container class for the codec information. |
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38 * |
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39 * @lib mmccinterface.dll |
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40 */ |
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41 NONSHARABLE_CLASS( CMCCCodecG711 ) : public CMccCodecInformation |
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42 { |
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43 public: // Constructors and destructor |
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44 |
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45 /** |
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46 * Two-phased constructor. |
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47 */ |
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48 static CMCCCodecG711* NewL( ); |
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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 ~CMCCCodecG711(); |
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54 |
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55 public: // From CMCCCodecInformation |
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56 |
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57 /** |
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58 * From CMCCCodecInformation |
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59 */ |
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60 CMccCodecInformation* CloneDefaultsL(); |
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61 |
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62 /** |
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63 * From CMCCCodecInformation |
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64 */ |
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65 CMccCodecInformation* CloneDetailedL(); |
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66 |
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67 /** |
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68 * From CMccCodecInformation |
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69 */ |
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70 TBool RequireSignalling( const CMccCodecInformation& aCandidate ) const; |
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71 |
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72 // sets |
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73 |
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74 /** |
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75 * From MccCodecInformation. Enable / Disable Voice Activity Detection. |
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76 * @since Series 60 3.0 |
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77 * @param aEnableVAD Boolean indicating whether to enable Voice Activity Detection |
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78 * @return KErrNotSupported if codec doesn't support VAD; otherwise KErrNone. |
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79 */ |
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80 TInt EnableVAD( TBool aEnableVAD ); |
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81 |
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82 /** |
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83 * From MccCodecInformation. Sets bitrate used with codec. |
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84 * @since Series 60 3.0 |
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85 * @param aBitrate New bitrate value |
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86 * @return KErrNotSupported if codec doesn't support bitrate value issued; otherwise KErrNone. |
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87 */ |
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88 TInt SetBitrate( TUint aBitrate ); |
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89 |
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90 /** |
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91 * From MccCodecInformation. Sets the sampling frequency. |
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92 * @since Series 60 3.0 |
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93 * @param aSamplingFreq Sampling frequency to be used |
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94 * @return KErrNotSupported if codec doesn't support sampling frequency issued; otherwise KErrNone. |
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95 */ |
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96 TInt SetSamplingFreq( TUint32 aSamplingFreq ); |
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97 |
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98 /** |
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99 * From MccCodecInformation. Sets the packet time. |
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100 * @since Series 60 3.0 |
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101 * @param aPTime PacketTime. |
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102 * @return One of the standard system-wide error codes. |
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103 */ |
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104 TInt SetPTime( TUint aPTime ); |
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105 |
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106 /** |
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107 * From MccCodecInformation. Sets max packet time. |
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108 * @since Series 60 3.0 |
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109 * @param aMaxPTime Maximum PacketTime |
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110 * @return One of the standard system-wide error codes. |
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111 */ |
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112 TInt SetMaxPTime( TUint aMaxPTime ); |
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113 |
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114 /** |
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115 * From MccCodecInformation. Sets the sdp name. |
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116 * @since Series 60 3.0 |
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117 * @param aRtpId - [input] RTP session ID |
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118 * @return One of the standard system-wide error codes. |
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119 */ |
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120 TInt SetSdpName( const TDesC8& aSdpName ); |
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121 |
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122 /** |
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123 * From MccCodecInformation. Sets the payload type. |
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124 * @since Series 60 3.0 |
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125 * @param aRtpId - [input] RTP session ID |
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126 * @return One of the standard system-wide error codes. |
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127 */ |
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128 TInt SetPayloadType( TUint8 aType ); |
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129 |
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130 /** |
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131 * From MccCodecInformation. Sets the codec mode. |
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132 * @since Series 60 3.0 |
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133 * @param aMode Codec mode ( e.g. ULAW/ALAW, Bandwidth efficient / octet aligned ) |
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134 * @return KErrNotSupported if codec doesnt' support codec mode value issued; otherwise KErrNone. |
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135 */ |
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136 TInt SetCodecMode( TCodecMode aCodecMode ); |
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137 |
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138 /** |
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139 * Enable / Disable Comfort noise generation. |
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140 * @param aComfortNoisePT Payloadtype value indicating what |
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141 * payload type should be used for comfort noise. |
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142 * KPayloadTypeUndefined can be used to turn comfor noise |
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143 * generation off. |
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144 * @return One of the standard system-wide error codes. |
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145 */ |
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146 TInt SetComfortNoiseGeneration( TUint8 aComfortNoisePT ); |
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147 |
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148 /** |
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149 * Set Allowed BitRate |
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150 * @since Series 60 3.0 |
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151 * @param aBitRateMask |
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152 * |
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153 * @return Etrue, if Mask is valid |
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154 */ |
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155 |
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156 TInt SetAllowedBitrates( TUint aBitrateMask ); |
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157 |
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158 private: |
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159 |
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160 /** |
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161 * C++ default constructor. |
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162 */ |
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163 CMCCCodecG711(); |
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164 |
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165 /** |
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166 * By default Symbian 2nd phase constructor is private. |
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167 */ |
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168 void ConstructL( ); |
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169 |
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170 }; |
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171 |
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172 |
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173 #endif //__MCC_CODEC_G711_H__ |
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174 |
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175 // End of File |