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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 CMCECOMAUDIOCODEC_H |
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22 #define CMCECOMAUDIOCODEC_H |
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23 |
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24 // INCLUDES |
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25 #include "mcecomcodec.h" |
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26 |
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27 #ifdef MCE_COMMON_SERVER_SIDE |
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28 |
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29 class CMceMediaManager; |
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30 class CMceComAudioStream; |
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31 |
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32 #endif//MCE_COMMON_SERVER_SIDE |
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33 |
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34 // FUNCTION PROTOTYPES |
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35 |
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36 // CLASS DECLARATION |
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37 /** |
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38 * Container class for the codec information. |
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39 * |
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40 * @lib |
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41 * @since |
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42 */ |
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43 class CMceComAudioCodec : public CMceComCodec |
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44 { |
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45 |
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46 public: // Constructors and destructor |
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47 |
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48 /** |
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49 * Two-phased constructor. |
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50 * @param aSdpName sdp name |
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51 */ |
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52 static CMceComAudioCodec* NewL( TBuf8<KMceMaxSdpNameLength> aSdpName ); |
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53 |
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54 /** |
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55 * Two-phased constructor. |
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56 * @param aSdpName sdp name |
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57 */ |
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58 static CMceComAudioCodec* NewLC( TBuf8<KMceMaxSdpNameLength> aSdpName ); |
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59 |
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60 /** |
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61 * Destructor. |
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62 */ |
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63 ~CMceComAudioCodec(); |
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64 |
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65 |
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66 public: // from CMceComCodec |
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67 |
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68 /** |
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69 * Internalizes flat data |
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70 * @param aReadStream read stream |
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71 */ |
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72 void InternalizeFlatL( RReadStream& aReadStream ); |
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73 |
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74 /** |
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75 * Externalizes flat data |
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76 * @param aWriteStream write stream |
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77 */ |
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78 void ExternalizeFlatL( RWriteStream& aWriteStream ); |
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79 |
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80 /** |
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81 * Updates this object |
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82 * @param aUpdate object updates this |
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83 */ |
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84 void UpdateL( CMceComCodec& aCodec ); |
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85 |
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86 public: //new functions |
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87 |
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88 /** |
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89 * Clones |
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90 */ |
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91 virtual CMceComAudioCodec* CloneL(); |
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92 |
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93 /** |
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94 * Factory |
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95 * @return factory |
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96 */ |
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97 static TMceComAudioCodecFactory Factory(); |
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98 |
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99 static TInt CompareSdpIndex( const CMceComAudioCodec& aIndex1, |
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100 const CMceComAudioCodec& aIndex2 ); |
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101 |
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102 /** |
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103 * Sets the sampling frequency. |
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104 * @param aSamplingFreq, Sampling frequency to be used |
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105 * @return KErrNotSupported if codec doesn't support sampling frequency issued; otherwise KErrNone. |
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106 */ |
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107 virtual TInt SetSamplingFreq( TUint aSamplingFreq ); |
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108 |
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109 /** |
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110 * Sets the packetization rate. |
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111 * @param aPTime, Packetization rate, must be multiple of audio frame size. |
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112 * @return KErrNotSupported if codec doesn't support packetrate value issued; otherwise KErrNone. |
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113 */ |
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114 virtual TInt SetPTime( TUint aPTime ); |
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115 |
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116 /** |
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117 * Sets the maximum packetization rate. |
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118 * @param aMaxPTime, maximum allowed packetization rate, must be multiple of audio frame size. |
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119 * @return KErrNotSupported if codec doesn't support packetrate value issued; otherwise KErrNone. |
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120 */ |
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121 virtual TInt SetMaxPTime( TUint aMaxPTime ); |
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122 |
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123 #ifdef MCE_COMMON_SERVER_SIDE |
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124 |
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125 /** |
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126 * Assigns mcc codec |
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127 * @param aMccCodec mcc codec |
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128 * @return assigned codecs |
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129 */ |
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130 CMceComCodec& operator=( CMccCodecInformation& aMccCodec ); |
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131 |
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132 /** |
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133 * Decodes to mcc codec |
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134 * @param aMccCodec mcc codec |
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135 */ |
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136 void DoMccDecodeL( CMccCodecInformation& aMccCodec ); |
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137 |
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138 /** |
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139 * Encodes from mcc codec |
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140 * @param aMccCodec mcc codec |
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141 * @param aStream stream |
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142 */ |
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143 void DoMccEncodeL( CMccCodecInformation& aMccCodec, |
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144 CMceSrvStream& aStream ); |
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145 |
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146 /** |
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147 * Validates codec values based on mcc codec |
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148 * @param aMccCodec mcc codec |
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149 * @param aStream stream |
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150 * @param aRole role |
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151 */ |
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152 CMceComCodec* DoMccValidateL( CMccCodecInformation& aMccCodec, |
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153 CMceSrvStream& aStream, |
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154 TMceNegotiationRole aRole ); |
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155 |
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156 /** |
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157 * Adjust codec values based on mcc codec |
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158 * @param aMccCodec mcc codec |
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159 * @param aStream stream |
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160 */ |
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161 void DoMccAdjustL( CMccCodecInformation& aMccCodec, |
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162 CMceSrvStream& aStream ); |
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163 |
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164 /** |
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165 * Checks, if signalling is required |
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166 * @param aStream stream |
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167 * @param aMccCurentCodec current mcc codec |
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168 * @param aMccUpdateCodec to be used mcc codec |
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169 */ |
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170 TInt DoMccRequireSignalling( |
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171 const CMceSrvStream& aStream, |
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172 const CMccCodecInformation& aMccCurentCodec, |
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173 const CMccCodecInformation& aMccUpdateCodec ) const; |
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174 |
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175 /** |
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176 * Creates server stream(s) for this codec |
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177 * @param aCodecIndex |
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178 * @param aStreams stream is added to the array |
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179 * @param aAudio |
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180 * @param aManager |
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181 */ |
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182 virtual void DoDecodeAudioL( TInt aCodecIndex, |
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183 RPointerArray<CMceSrvStream>& aStreams, |
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184 CMceComAudioStream& aAudio, |
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185 CMceMediaManager& aManager ); |
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186 |
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187 protected: // from CMceComCodec |
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188 |
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189 /** |
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190 * Set default fmtp line |
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191 */ |
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192 void DoSetDefaultFmtpAttributeL(); |
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193 |
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194 protected: |
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195 |
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196 void DoMccEncodeComfortNoiseL( CMccCodecInformation& aMccCodec, |
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197 CMceSrvStream& aStream ); |
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198 |
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199 void DoMccEncodeRedundancyL( CMccCodecInformation& aMccCodec, |
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200 CMceSrvStream& aStream ); |
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201 |
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202 void UpdateSendCodec( TInt& aCodecIndex, |
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203 CMceComAudioStream& aAudio, |
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204 CMceComAudioCodec& aCodec ); |
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205 |
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206 #endif//MCE_COMMON_SERVER_SIDE |
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207 |
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208 protected: |
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209 |
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210 /** |
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211 * C++ default constructor. |
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212 */ |
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213 CMceComAudioCodec(); |
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214 |
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215 /** |
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216 * second-phase copy constructor |
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217 */ |
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218 void ConstructL( CMceComAudioCodec& aCodec ); |
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219 |
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220 |
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221 /** |
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222 * second-phase copy constructor |
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223 */ |
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224 void ConstructL( TBuf8<KMceMaxSdpNameLength> aSdpName ); |
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225 |
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226 |
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227 |
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228 public: // Owned serialized Data |
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229 |
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230 |
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231 |
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232 /** |
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233 * Enables or disables VAD |
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234 */ |
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235 TBool iEnableVAD; |
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236 |
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237 /** |
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238 * Sampling frequency used with codec |
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239 */ |
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240 TUint iSamplingFreq; |
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241 |
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242 /** |
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243 * Stream's packet time |
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244 */ |
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245 TUint iPTime; |
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246 |
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247 /** |
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248 * Stream's max packet time |
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249 */ |
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250 TUint iMaxPTime; |
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251 |
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252 /** |
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253 * Payload type of associated red codec |
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254 */ |
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255 TUint8 iRedPayloadType; |
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256 |
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257 /** |
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258 * Redundancy level |
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259 */ |
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260 TUint iRedCount; |
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261 |
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262 /** |
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263 * Comfort noise |
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264 */ |
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265 TBool iComfortNoiseEnabled; |
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266 |
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267 }; |
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268 |
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269 |
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270 |
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271 #endif |
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272 |
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273 // End of File |