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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 CMCEMESSAGESDPCODEC_H |
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22 #define CMCEMESSAGESDPCODEC_H |
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23 |
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24 #include "mcemediasdpcodec.h" |
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25 #include "mcecommediastream.h" |
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26 #include "mcecommsrpsource.h" |
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27 #include "mcecommsrpsink.h" |
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28 #include <sdpmediafield.h> |
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29 |
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30 class CMceComMessageStream; |
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31 //class CMceComAudioCodec; |
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32 |
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33 |
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34 #define MCE_SDP_STRING_MESSAGEL()\ |
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35 SdpCodecStringPool::StringPoolL().OpenFStringL(KMceMediaMessage) |
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36 |
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37 struct TParsedHeader |
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38 { |
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39 TBuf8<256> iNameValue; |
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40 TBuf8<50> iTypeValue; |
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41 TPtrC8 iHash; |
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42 TInt64 iSize; |
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43 TBuf8<32> iFileTransferId; |
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44 }; |
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45 |
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46 /** |
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47 * |
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48 * |
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49 * @lib |
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50 */ |
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51 class CMceMessageSdpCodec: public CMceMediaSdpCodec |
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52 { |
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53 |
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54 public://constructor and destructor |
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55 |
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56 /** |
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57 * Constructor |
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58 */ |
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59 static CMceMessageSdpCodec* NewL(); |
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60 |
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61 /** |
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62 * Destructor |
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63 */ |
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64 ~CMceMessageSdpCodec(); |
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65 |
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66 |
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67 public: //from CMceSdpCodec |
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68 |
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69 /** |
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70 * Returns ETrue, if media is encoded by this codec |
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71 * @return ETrue, if media is encoded by this codec |
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72 */ |
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73 TBool Encodes( const CMceComMediaStream& aStream ) const; |
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74 |
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75 |
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76 public: //from CMceMediaSdpCodec |
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77 |
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78 |
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79 /** |
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80 * Returns codecs |
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81 * @param aStream media stream |
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82 * @param return codecs |
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83 * @leave if stream type does not macth codecs |
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84 */ |
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85 const RPointerArray<CMceComCodec>& CodecsL( CMceComMediaStream& aStream ) const; |
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86 |
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87 /** |
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88 * Encodes rtpmap -attribute |
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89 * @param aCodec codec encoded to rtpmap |
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90 * @leave system wide error |
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91 */ |
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92 CSdpFmtAttributeField* EncodeRtpmapAttributeLC( CMceComCodec& aCodec ) const; |
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93 |
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94 /** |
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95 * Encodes media related attributes |
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96 * @param aCodec the codec |
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97 * @param aMediaLine media line |
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98 * @param aRtpmap rtpmap attribute |
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99 * @leave system wide error |
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100 */ |
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101 void EncodeMediaAttributesL( CMceComCodec& aCodec, |
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102 CSdpMediaField& aMediaLine, |
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103 CSdpFmtAttributeField& aRtpmap ) const; |
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104 |
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105 /** |
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106 * Encodes message media related attributes |
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107 * @param aStream for media stream |
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108 * @param aMediaLine media line |
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109 * @leave system wide error |
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110 */ |
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111 void EncodeMessageMediaAttributesL( CMceComMessageStream& aStream, |
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112 CSdpMediaField& aMediaLine); |
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113 |
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114 /** |
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115 * Decodes media related attributes |
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116 * @param aMediaLine media line |
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117 * @param aCodec the codec |
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118 * @leave system wide error |
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119 */ |
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120 void DecodeMediaAttributesL( CSdpMediaField& aMediaLine, |
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121 CMceComCodec& aCodec, |
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122 CSdpFmtAttributeField& aRtpmap ) const; |
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123 |
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124 /** |
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125 * Creates media stream based on sdp type |
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126 * @param aType the sdp type sendrecv, sendonly or receive only |
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127 * @return media stream |
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128 * @leave system wide error |
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129 */ |
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130 CMceComMediaStream* CreateStreamLC( TInt aType ) const; |
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131 |
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132 /** |
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133 * Updates media based on received offer |
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134 * @param aStream media stream |
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135 * @param aDirection the direction |
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136 * @leave system wide error |
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137 */ |
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138 void UpdateStreamL( CMceComMediaStream& aStream, TInt aDirection ) const; |
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139 |
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140 /** |
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141 * Creates codec based on rtpmap line |
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142 * @param aRtpmap rtpmap line |
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143 * @return codec or NULL, if not supported |
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144 * @leave system wide error |
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145 */ |
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146 CMceComCodec* CreateCodecLC( CSdpFmtAttributeField& aRtpmap ) const; |
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147 |
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148 /** |
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149 * Creates codec based on payload type |
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150 * @param aPayload payload |
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151 * @param aMediaLine media line |
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152 * @return codec or NULL, if not supported |
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153 * @leave system wide error |
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154 */ |
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155 CMceComCodec* CreateCodecLC( TUint aPayload, CSdpMediaField& aMediaLine ) const; |
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156 |
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157 /** |
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158 * Decodes session level media attributes |
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159 * @param aStream media stream |
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160 * @param aSdpDocument sdp document |
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161 * @return codec or NULL, if not supported |
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162 * @leave system wide error |
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163 */ |
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164 void DecodeSessionMediaAttributesL( CMceComMediaStream& aStream, |
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165 CSdpDocument& aSdpDocument ) const; |
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166 |
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167 |
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168 |
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169 private: |
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170 |
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171 |
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172 /** |
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173 * C++ Constructor |
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174 * @param aMedia media |
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175 */ |
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176 CMceMessageSdpCodec( RStringF aMedia ); |
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177 |
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178 /** |
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179 * Creates uplink audio stream with mic and rtp sink |
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180 * @return uplink audio stream |
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181 */ |
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182 CMceComMessageStream* CreateUplinkStreamL() const; |
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183 |
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184 /** |
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185 * Creates downlink audio stream with rtp source and speaker |
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186 * @return downlink audio stream |
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187 */ |
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188 CMceComMessageStream* CreateDownlinkStreamL() const; |
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189 |
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190 /** |
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191 * Creates fmtlist that can be used as media field fmt list -attribute |
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192 * @param aCodecs codecs |
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193 * @return fmtp list |
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194 */ |
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195 HBufC8* CreateFormatListL( CMceComCodec::TIterator& aCodecs ) const; |
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196 |
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197 /** |
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198 * Decodes media line's format list to payload type array |
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199 * @param aMediaLine Media line |
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200 * @param aPayloadTypes payload types as an array |
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201 */ |
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202 void DecodeFormatListL( CSdpMediaField& aMedia, |
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203 RArray<TUint>& aPayloadTypes ) const; |
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204 |
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205 /** |
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206 * Decodes media line's format list to payload type array |
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207 * @param aMediaLine Media line |
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208 * @param aPayloadTypes payload types as an array |
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209 * @return system wide error |
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210 */ |
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211 TInt DecodeFormatList( CSdpMediaField& aMedia, |
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212 RArray<TUint>& aPayloadTypes ) const; |
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213 |
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214 /** |
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215 * Decodes static payloads if payload wasn't defined as rtpmap |
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216 * @param aMediaLine Media line |
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217 * @param aStream stream |
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218 * @param aPayloadTypes payload types as an array |
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219 * @param aRole role of negotiation |
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220 * @return number of lines decoded |
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221 */ |
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222 TInt DecodeStaticPayloadsL( CSdpMediaField& aMediaLine, |
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223 CMceComMediaStream& aStream, |
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224 RArray<TUint>& aPayloadTypes, |
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225 TMceNegotiationRole aRole ) const; |
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226 |
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227 /** |
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228 * If the path attribute is set for the message streams then this funtion |
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229 * extracts the host and port informaiotn and sets accordinlgy to the |
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230 * media stream |
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231 */ |
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232 void SetHostAddrFromPathAttrL(const TUriC8& aMsrpUri, |
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233 CSdpMediaField& aMediaLine); |
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234 |
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235 /** |
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236 * Set MSRP path SDP attribute to the media line |
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237 */ |
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238 void SetPathAttributeL(CMceComMessageStream& aMsgStream, |
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239 CMceComMsrpSource* msrpSource, |
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240 CMceComMsrpSink* msrpSink, |
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241 CSdpMediaField& aMediaLine); |
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242 |
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243 /** |
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244 * Set MSRP SDP AcceptTypes attribte to the media line |
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245 */ |
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246 void SetAcceptTypesAttributeL(CMceComMsrpSource* msrpSource, CMceComMsrpSink* msrpSink, |
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247 CSdpMediaField& aMediaLine); |
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248 |
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249 /** |
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250 * Set MSRP SDP AcceptWrappedTypes attribte to the media line |
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251 */ |
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252 void SetAcceptWrappedAttributeL(CMceComMsrpSource* msrpSource, CMceComMsrpSink* msrpSink, |
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253 CSdpMediaField& aMediaLine); |
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254 |
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255 /* |
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256 * Set file share attribure |
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257 */ |
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258 void SetFileShareAttributeL(CMceComMsrpSource* msrpSource, CMceComMsrpSink* msrpSink, |
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259 CSdpMediaField& aMediaLine); |
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260 |
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261 /* |
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262 * Parsing remotesdplines |
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263 */ |
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264 TInt ParseSomeHeader(const TDesC8& aHeaderToParse, TParsedHeader& aParsedHeader) const; |
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265 |
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266 /** |
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267 * Creates File-Selector attributes and appends it to media line |
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268 * |
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269 */ |
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270 |
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271 void EncodeFileAttributeL( CMceComMediaStream& aStream, |
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272 CSdpMediaField& aMediaLine ) const; |
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273 |
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274 /** |
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275 * Sets the MSRP connection usage for the MSRP based m-lines |
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276 */ |
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277 void SetConnectionAttributeL(CMceComMessageStream& aStream, |
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278 CSdpMediaField& aMediaLine); |
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279 |
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280 void DecodeClientAttributesL( CSdpMediaField& aMediaLine, |
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281 CMceComMediaStream& aStream ) const; |
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282 |
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283 private: |
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284 RStringF iFileSelectorStr; |
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285 RStringF iFileTransferidStr; |
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286 RStringF iFileDispositionStr; |
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287 RStringF iAcceptWrappedTypesStr; |
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288 RStringF iPathStr; |
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289 RStringF iAcceptTypesStr; |
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290 RStringF iNetType; |
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291 RStringF iAddressType; |
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292 RStringF iConnectionStr; |
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293 }; |
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294 |
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295 |
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296 |
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297 #endif //CMceMessageSdpCodec_H |
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298 |