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1 /* |
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2 * Copyright (c) 2004-2008 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 G729 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_ILBC_H__ |
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22 #define __MCC_CODEC_ILBC_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 const TUint KIlbcMaxPTime30 = 180; |
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29 |
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30 // iLBC Codec possible bitrates |
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31 const TInt KIlbcBitrate20 = 15200; |
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32 const TInt KIlbcBitrate30 = 13330; |
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33 |
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34 // Other iLBC related constants |
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35 const TInt KIlbcSampleRate( 8000 ); |
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36 const TInt KIlbcPTime( 30 ); |
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37 const TInt KIlbcHwFrameTime( 30 ); |
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38 const TInt KIlbcMaxPTime( 180 ); |
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39 const TInt KIlbcPTime20( 20 ); |
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40 const TInt KIlbcPTime30( 30 ); |
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41 |
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42 // CLASS DECLARATION |
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43 |
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44 /** |
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45 * Container class for the iLBC codec information. |
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46 * |
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47 * @lib mmccinterface.dll |
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48 */ |
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49 NONSHARABLE_CLASS( CMCCCodecILBC ): public CMccCodecInformation |
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50 { |
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51 public: // Constructors and destructor |
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52 |
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53 /** |
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54 * Two-phased constructor. |
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55 */ |
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56 static CMCCCodecILBC* NewL(); |
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57 |
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58 /** |
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59 * Destructor. |
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60 */ |
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61 virtual ~CMCCCodecILBC(); |
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62 |
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63 public: // From CMccCodecInformation |
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64 |
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65 /** |
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66 * From CMccCodecInformation |
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67 */ |
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68 CMccCodecInformation* CloneDefaultsL(); |
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69 |
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70 /** |
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71 * From CMccCodecInformation |
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72 */ |
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73 CMccCodecInformation* CloneDetailedL(); |
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74 |
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75 /** |
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76 * From CMccCodecInformation |
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77 */ |
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78 TBool RequireSignalling( const CMccCodecInformation& aCandidate ) const; |
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79 |
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80 /** |
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81 * From MccCodecInformation. Enable / Disable Voice Activity Detection. |
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82 * @since Series 60 3.0 |
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83 * @param aEnableVAD Boolean indicating whether to enable Voice Activity Detection |
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84 * @return KErrNotSupported if codec doesn't support VAD; otherwise KErrNone. |
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85 */ |
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86 TInt EnableVAD( TBool aEnableVAD ); |
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87 |
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88 /** |
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89 * From MccCodecInformation. Sets bitrate used with codec. |
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90 * @since Series 60 3.0 |
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91 * @param aBitrate New bitrate value |
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92 * @return KErrNotSupported if codec doesn't support bitrate value issued; otherwise KErrNone. |
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93 */ |
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94 TInt SetBitrate( TUint aBitrate ); |
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95 |
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96 /** |
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97 * From MccCodecInformation. Sets the sampling frequency. |
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98 * @since Series 60 3.0 |
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99 * @param aSamplingFreq Sampling frequency to be used |
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100 * @return KErrNotSupported if codec doesn't support sampling frequency issued; otherwise KErrNone. |
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101 */ |
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102 TInt SetSamplingFreq( TUint32 aSamplingFreq ); |
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103 |
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104 /** |
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105 * From MccCodecInformation. Sets the sdp name. |
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106 * @since Series 60 3.0 |
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107 * @param aRtpId - [input] RTP session ID |
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108 * @return One of the standard system-wide error codes. |
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109 */ |
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110 TInt SetSdpName( const TDesC8& aSdpName ); |
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111 |
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112 /** |
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113 * From MccCodecInformation. Sets the payload type. |
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114 * @since Series 60 3.0 |
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115 * @param aRtpId - [input] RTP session ID |
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116 * @return One of the standard system-wide error codes. |
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117 */ |
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118 TInt SetPayloadType( TUint8 aPayloadType ); |
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119 |
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120 /** |
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121 * From MccCodecInformation. Sets the codec mode. |
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122 * @since Series 60 3.0 |
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123 * @param aMode Codec mode ( e.g. ULAW/ALAW, Bandwidth efficient / octet aligned ) |
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124 * @return KErrNotSupported if codec doesnt' support codec mode value issued; otherwise KErrNone. |
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125 */ |
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126 TInt SetCodecMode( TCodecMode aCodecMode ); |
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127 |
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128 /** |
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129 * Creates the fmtp string from internal values |
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130 * @since Series 60 3.0 |
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131 * @return void |
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132 */ |
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133 void CreateFmtpAttrListL(); |
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134 |
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135 /** |
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136 * Parses the fmtp attributes, and updates the internal values |
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137 * except the iFmtpAttr attribute |
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138 * @since Series 60 3.0 |
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139 * @param aFmtp Fmtp attribute |
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140 * @return True if any param was updated |
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141 */ |
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142 TBool ParseFmtpAttrL( const TDesC8& aFmtp ); |
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143 |
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144 /** |
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145 * Get the fmtp string |
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146 * @since Series 60 3.0 |
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147 * @return Fmtp. |
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148 */ |
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149 TDesC8& GetFmtpL( ); |
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150 |
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151 /** |
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152 * From MccCodecInformation. Sets max packet time. |
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153 * @since Series 60 3.0 |
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154 * @param aMaxPTime Maximum PacketTime |
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155 * @return One of the standard system-wide error codes. |
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156 */ |
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157 TInt SetMaxPTime( TUint aMaxPTime ); |
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158 |
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159 /** |
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160 * From MccCodecInformation. Sets the packet time. |
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161 * @since Series 60 3.0 |
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162 * @param aPTime PacketTime. |
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163 * @return One of the standard system-wide error codes. |
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164 */ |
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165 TInt SetPTime( TUint aPTime ); |
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166 |
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167 /** |
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168 * Enable / Disable Comfort noise generation. |
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169 * @param aComfortNoisePT Payloadtype value indicating what |
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170 * payload type should be used for comfort noise. |
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171 * KPayloadTypeUndefined can be used to turn comfor noise |
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172 * generation off. |
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173 * @return One of the standard system-wide error codes. |
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174 */ |
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175 TInt SetComfortNoiseGeneration( TUint8 aComfortNoisePT ); |
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176 |
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177 /** |
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178 * Set Allowed BitRate |
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179 * @since Series 60 3.0 |
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180 * @param aBitRateMask |
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181 * |
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182 * @return Etrue, if Mask is valid |
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183 */ |
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184 |
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185 TInt SetAllowedBitrates( TUint aBitrateMask ); |
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186 |
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187 private: |
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188 |
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189 /** |
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190 * C++ default constructor. |
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191 */ |
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192 CMCCCodecILBC(); |
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193 |
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194 /** |
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195 * By default Symbian 2nd phase constructor is private. |
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196 */ |
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197 void ConstructL(); |
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198 |
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199 /** |
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200 * Adjust codec. |
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201 */ |
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202 void AdjustCodec(); |
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203 |
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204 public: // Data |
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205 |
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206 protected: // Data |
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207 |
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208 private: // Data |
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209 |
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210 public: // Friend classes |
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211 |
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212 protected: // Friend classes |
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213 |
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214 private: // Friend classes |
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215 |
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216 }; |
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217 |
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218 |
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219 #endif //__MCC_CODEC_ILBC_H__ |
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220 |
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221 // End of File |