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1 /* |
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2 * Copyright (c) 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: |
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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 #include "mcecomavccodec.h" |
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22 |
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23 #ifdef MCE_COMMON_SERVER_SIDE |
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24 |
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25 #include <mmcccodecinformationfactory.h> |
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26 #include <mmcccodecinformation.h> |
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27 |
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28 #include "mcecommediastream.h" |
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29 |
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30 #endif |
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31 |
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32 |
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33 // CONSTANTS |
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34 _LIT8( KMceAvcProfileLevelIdFmtp, "profile-level-id=" ); |
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35 _LIT8( KMceAvcProfileLevel1, "42800A" ); |
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36 const TInt KMceAvcProfileLevelIdValLen = 6; |
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37 |
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38 _LIT8( KMceAvcPacketizationModeFmtp, "packetization-mode=" ); |
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39 _LIT8( KMceAvcPacketizationModeSingleNal, "0" ); |
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40 const TInt KMceAvcPacketizationModeValLen = 1; |
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41 |
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42 #ifdef MCE_COMMON_SERVER_SIDE |
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43 |
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44 _LIT8( KMceAvcProfileLevelOnly1, "0A" ); |
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45 const TInt KMceAvcProfileLevelValLen = 2; |
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46 const TInt KMceAvcProfileLevelValOffset = 4; |
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47 |
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48 _LIT8( KMceAvcProfileIopDefault, "80" ); |
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49 const TInt KMceAvcProfileIopValLen = 2; |
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50 const TInt KMceAvcProfileIopValOffset = 2; |
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51 |
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52 _LIT8( KMceAvcSpropParameterSetsFmtp, "sprop-parameter-sets="); |
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53 const TChar KMceAvcFmtpParameterSeparator = ';'; |
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54 const TChar KMceAvcFtmpParameterSpace = ' '; |
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55 |
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56 #endif |
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57 |
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58 // ============================ MEMBER FUNCTIONS =============================== |
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59 |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // CMceComAvcCodec::NewL |
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63 // ----------------------------------------------------------------------------- |
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64 // |
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65 CMceComAvcCodec* CMceComAvcCodec::NewL( TBuf8<KMceMaxSdpNameLength> aSdpName ) |
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66 { |
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67 CMceComAvcCodec* self = NewLC( aSdpName ); |
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68 CleanupStack::Pop( self ); |
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69 return self; |
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70 |
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71 } |
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72 |
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73 // ----------------------------------------------------------------------------- |
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74 // CMceComAvcCodec::NewLC |
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75 // ----------------------------------------------------------------------------- |
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76 // |
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77 CMceComAvcCodec* CMceComAvcCodec::NewLC( TBuf8<KMceMaxSdpNameLength> aSdpName ) |
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78 { |
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79 CMceComAvcCodec* self = new (ELeave) CMceComAvcCodec(); |
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80 CleanupStack::PushL( self ); |
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81 self->ConstructL( aSdpName ); |
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82 return self; |
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83 } |
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84 |
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85 |
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86 // ----------------------------------------------------------------------------- |
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87 // CMceComAvcCodec::~CMceComAvcCodec |
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88 // ----------------------------------------------------------------------------- |
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89 // |
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90 CMceComAvcCodec::~CMceComAvcCodec() |
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91 { |
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92 } |
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93 |
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94 |
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95 // ----------------------------------------------------------------------------- |
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96 // CMceComAvcCodec::CMceComAvcCodec |
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97 // ----------------------------------------------------------------------------- |
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98 // |
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99 CMceComAvcCodec::CMceComAvcCodec() |
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100 :CMceComVideoCodec() |
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101 { |
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102 iCodecMode = KMceAvcModeSingleNal; |
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103 iClockRate = KMceAvcDefaultFrameRate; |
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104 iFrameRate = KMceAvcDefaultFrameRate; |
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105 iResolutionWidth = KMceAvcDefaultFrameWidth; |
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106 iResolutionHeight = KMceAvcDefaultFrameHeight; |
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107 iBitrate = KMceAvcLevel1BitrateBps; |
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108 iMaxBitRate = KMceAvcLevel1BitrateBps; |
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109 iAllowedBitrates = KMceAvcDefaultAllowedBitrate; |
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110 iFrameSize = KMceAvcDefaultFrameSize; |
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111 // Defaults should be defined in MCE API |
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112 const TUint8 KMceDefaultAvcPayloadType = 98; |
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113 iPayloadType = KMceDefaultAvcPayloadType; |
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114 |
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115 iReceiveFrameRate = KMceAvcDefaultFrameRate; |
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116 } |
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117 |
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118 |
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119 // ----------------------------------------------------------------------------- |
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120 // CMceComAvcCodec::ConstructL |
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121 // ----------------------------------------------------------------------------- |
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122 // |
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123 CMceComVideoCodec* CMceComAvcCodec::CloneL() |
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124 { |
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125 CMceComAvcCodec* copy = new (ELeave) CMceComAvcCodec(); |
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126 CleanupStack::PushL( copy ); |
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127 copy->ConstructL( *this ); |
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128 CleanupStack::Pop( copy ); |
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129 return copy; |
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130 |
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131 } |
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132 |
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133 |
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134 // ----------------------------------------------------------------------------- |
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135 // CMceComAvcCodec::ConstructL |
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136 // ----------------------------------------------------------------------------- |
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137 // |
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138 void CMceComAvcCodec::ConstructL( TBuf8<KMceMaxSdpNameLength> aSdpName ) |
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139 { |
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140 CMceComVideoCodec::ConstructL( aSdpName ); |
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141 |
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142 } |
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143 |
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144 |
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145 // ----------------------------------------------------------------------------- |
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146 // CMceComAvcCodec::ConstructL |
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147 // ----------------------------------------------------------------------------- |
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148 // |
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149 void CMceComAvcCodec::ConstructL( CMceComAvcCodec& aCodec ) |
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150 { |
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151 CMceComVideoCodec::ConstructL( aCodec ); |
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152 } |
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153 |
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154 // ----------------------------------------------------------------------------- |
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155 // CMceComAvcCodec::SetBitrate |
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156 // ----------------------------------------------------------------------------- |
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157 // |
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158 TInt CMceComAvcCodec::SetBitrate( TUint aBitrate ) |
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159 { |
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160 return CMceComCodec::SetBitrate( aBitrate ); |
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161 } |
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162 |
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163 // ----------------------------------------------------------------------------- |
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164 // CMceComAvcCodec::SetAllowedBitrates |
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165 // ----------------------------------------------------------------------------- |
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166 // |
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167 TInt CMceComAvcCodec::SetAllowedBitrates( TUint aBitrates ) |
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168 { |
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169 TInt error = KErrNone; |
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170 |
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171 //Confirm that the bitrate mask is valid |
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172 //I.e. after all the valid bitrates are set to zero the value should be zero |
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173 if ( !aBitrates || |
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174 ( aBitrates >> 16 ) > 0 ) |
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175 { |
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176 error = KErrArgument; |
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177 } |
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178 else |
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179 { |
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180 const TUint KMceOtherInfoMask = 0xFF00; |
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181 |
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182 if ( aBitrates == KMceAllowedAvcBitrateAll ) |
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183 { |
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184 // Start using recommended high bitrate |
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185 aBitrates = KMceAvcAllowedBitrateRecommendedHigh; |
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186 } |
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187 |
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188 CMceComCodec::SetAllowedBitrates( KMceAllowedAvcBitrateAll ); |
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189 iAllowedBitrates &= aBitrates; |
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190 TUint maxBitrate = GetMaxBitRate(); |
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191 CMceComVideoCodec::SetMaxBitrate( maxBitrate ); |
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192 if ( iBitrate > maxBitrate ) |
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193 { |
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194 error = CMceComCodec::SetBitrate( maxBitrate ); |
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195 } |
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196 |
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197 // Update also other avc codec information stored inside |
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198 // allowed bitrates mask |
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199 iAllowedBitrates |= ( aBitrates & KMceOtherInfoMask ); |
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200 } |
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201 |
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202 return error; |
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203 } |
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204 |
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205 |
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206 |
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207 // ----------------------------------------------------------------------------- |
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208 // CMceComAvcCodec::GetMaxBitRate |
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209 // ----------------------------------------------------------------------------- |
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210 // |
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211 TUint CMceComAvcCodec::GetMaxBitRate() |
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212 { |
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213 TUint maxBitrate( 0 ); |
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214 if( iAllowedBitrates & KMceAvcBitrateLevel1 ) |
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215 { |
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216 maxBitrate = KMceAvcLevel1BitrateBps; |
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217 } |
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218 else if( iAllowedBitrates & KMceAvcBitrateLevel1b ) |
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219 { |
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220 maxBitrate = KMceAvcLevel1bBitrateBps; |
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221 } |
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222 else if( iAllowedBitrates & KMceAvcBitrateLevel1_1 ) |
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223 { |
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224 maxBitrate = KMceAvcLevel11BitrateBps; |
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225 } |
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226 else if( iAllowedBitrates & KMceAvcBitrateLevel1_2 ) |
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227 { |
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228 maxBitrate = KMceAvcLevel12BitrateBps; |
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229 } |
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230 else if( iAllowedBitrates & KMceAvcBitrateLevel1_3 ) |
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231 { |
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232 maxBitrate = KMceAvcLevel13BitrateBps; |
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233 } |
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234 else if( iAllowedBitrates & KMceAvcBitrateLevel2 ) |
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235 { |
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236 maxBitrate = KMceAvcLevel2BitrateBps; |
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237 } |
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238 else |
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239 { |
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240 // NOP |
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241 } |
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242 |
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243 return maxBitrate; |
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244 } |
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245 |
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246 // ----------------------------------------------------------------------------- |
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247 // CMceComAvcCodec::SetMaxBitrate |
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248 // ----------------------------------------------------------------------------- |
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249 // |
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250 TInt CMceComAvcCodec::SetMaxBitrate( TUint aMaxBitrate ) |
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251 { |
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252 TInt status = KErrNone; |
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253 switch( aMaxBitrate ) |
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254 { |
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255 case KMceAvcLevel1BitrateBps: |
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256 { |
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257 status = SetAllowedBitrates( KMceAvcCodecProfileIdBaseline | |
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258 KMceAvcCodecProfileIopConstraintSet | |
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259 KMceAvcBitrateLevel1 ); |
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260 break; |
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261 } |
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262 case KMceAvcLevel1bBitrateBps: |
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263 { |
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264 status = SetAllowedBitrates( KMceAvcCodecProfileIdBaseline | |
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265 KMceAvcCodecProfileIopConstraintSet | |
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266 KMceAvcBitrateLevel1b ); |
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267 break; |
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268 } |
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269 case KMceAvcLevel11BitrateBps: |
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270 { |
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271 status = SetAllowedBitrates( KMceAvcCodecProfileIdBaseline | |
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272 KMceAvcCodecProfileIopConstraintSet | |
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273 KMceAvcBitrateLevel1_1 ); |
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274 break; |
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275 } |
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276 case KMceAvcLevel12BitrateBps: |
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277 { |
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278 status = SetAllowedBitrates( KMceAvcCodecProfileIdBaseline | |
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279 KMceAvcCodecProfileIopConstraintSet | |
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280 KMceAvcBitrateLevel1_2 ); |
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281 break; |
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282 } |
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283 case KMceAvcLevel13BitrateBps: |
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284 { |
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285 status = SetAllowedBitrates( KMceAvcCodecProfileIdBaseline | |
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286 KMceAvcCodecProfileIopConstraintSet | |
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287 KMceAvcBitrateLevel1_3 ); |
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288 break; |
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289 } |
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290 case KMceAvcLevel2BitrateBps: |
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291 { |
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292 status = SetAllowedBitrates( KMceAvcCodecProfileIdBaseline | |
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293 KMceAvcCodecProfileIopConstraintSet | |
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294 KMceAvcBitrateLevel2 ); |
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295 break; |
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296 } |
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297 default: |
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298 { |
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299 status = KErrNotSupported; |
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300 break; |
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301 } |
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302 } |
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303 |
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304 return status; |
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305 |
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306 } |
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307 |
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308 // ----------------------------------------------------------------------------- |
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309 // CMceComAvcCodec::ResolveAllowedBitrates |
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310 // ----------------------------------------------------------------------------- |
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311 // |
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312 TInt CMceComAvcCodec::ResolveAllowedBitrates( |
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313 TUint aBitrate, TUint& aAllowedBitrates ) |
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314 { |
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315 TInt retVal( KErrNone ); |
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316 |
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317 if ( aBitrate <= KMceAvcLevel1BitrateBps ) |
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318 { |
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319 aAllowedBitrates = KMceAvcCodecProfileIdBaseline | |
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320 KMceAvcCodecProfileIopConstraintSet | |
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321 KMceAvcBitrateLevel1; |
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322 } |
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323 else if ( aBitrate <= KMceAvcLevel1bBitrateBps ) |
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324 { |
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325 aAllowedBitrates = KMceAvcCodecProfileIdBaseline | |
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326 KMceAvcCodecProfileIopConstraintSet | |
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327 KMceAvcBitrateLevel1b; |
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328 } |
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329 else if ( aBitrate <= KMceAvcLevel11BitrateBps ) |
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330 { |
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331 aAllowedBitrates = KMceAvcCodecProfileIdBaseline | |
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332 KMceAvcCodecProfileIopConstraintSet | |
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333 KMceAvcBitrateLevel1_1; |
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334 } |
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335 else if ( aBitrate <= KMceAvcLevel12BitrateBps ) |
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336 { |
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337 aAllowedBitrates = KMceAvcCodecProfileIdBaseline | |
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338 KMceAvcCodecProfileIopConstraintSet | |
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339 KMceAvcBitrateLevel1_2; |
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340 } |
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341 else if ( aBitrate <= KMceAvcLevel13BitrateBps ) |
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342 { |
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343 aAllowedBitrates = KMceAvcCodecProfileIdBaseline | |
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344 KMceAvcCodecProfileIopConstraintSet | |
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345 KMceAvcBitrateLevel1_3; |
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346 } |
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347 else if ( aBitrate <= KMceAvcLevel2BitrateBps ) |
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348 { |
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349 aAllowedBitrates = KMceAvcCodecProfileIdBaseline | |
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350 KMceAvcCodecProfileIopConstraintSet | |
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351 KMceAvcBitrateLevel2; |
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352 } |
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353 else |
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354 { |
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355 retVal = KErrNotSupported; |
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356 } |
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357 |
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358 return retVal; |
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359 } |
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360 |
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361 // ----------------------------------------------------------------------------- |
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362 // CMceComAvcCodec::Decodes |
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363 // For AVC, fmtp value contains profile level and packetization mode |
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364 // information which need to be taken in count (same codec cannot be |
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365 // used for different levels or packetization modes). If less strict matching |
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366 // is used, profile level is ignored but packetization mode is still checked |
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367 // ----------------------------------------------------------------------------- |
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368 // |
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369 TBool CMceComAvcCodec::Decodes( |
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370 const TDesC8& aRtpmapValue, |
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371 const TDesC8& aFmtpValue, |
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372 TBool aIsStrictMatch ) |
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373 { |
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374 TBool decodes = CMceComCodec::Decodes( aRtpmapValue, aFmtpValue, aIsStrictMatch ); |
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375 if ( decodes ) |
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376 { |
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377 TPtrC8 existingFmtpVal = FmtpAttr(); |
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378 |
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379 TPtrC8 packetizationMode = ParsePacketizationMode( aFmtpValue ); |
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380 TPtrC8 existingPacketizationMode = ParsePacketizationMode( existingFmtpVal ); |
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381 decodes = ( packetizationMode.CompareF( existingPacketizationMode ) == 0 ); |
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382 |
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383 if ( decodes && aIsStrictMatch ) |
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384 { |
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385 TPtrC8 profileLevelId = ParseProfileLevelId( aFmtpValue ); |
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386 |
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387 TPtrC8 existingProfileLevelId = ParseProfileLevelId( existingFmtpVal ); |
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388 decodes = ( profileLevelId.CompareF( existingProfileLevelId ) == 0 ); |
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389 } |
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390 } |
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391 return decodes; |
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392 } |
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393 |
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394 // ----------------------------------------------------------------------------- |
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395 // CMceComAvcCodec::ParseProfileLevelId |
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396 // ----------------------------------------------------------------------------- |
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397 // |
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398 TPtrC8 CMceComAvcCodec::ParseProfileLevelId( const TDesC8& aFmtpValue ) |
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399 { |
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400 // Non-existing profile-level-id means level 1 |
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401 TPtrC8 profileLevelIdVal = |
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402 GetFmtpAttributeValuePart( aFmtpValue, |
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403 KMceAvcProfileLevelIdFmtp(), |
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404 KMceAvcProfileLevelIdValLen, |
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405 KMceAvcProfileLevel1 ); |
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406 |
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407 return profileLevelIdVal; |
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408 } |
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409 |
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410 // ----------------------------------------------------------------------------- |
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411 // CMceComAvcCodec::ParseProfileLevelIdValPart |
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412 // ----------------------------------------------------------------------------- |
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413 // |
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414 TPtrC8 CMceComAvcCodec::ParseProfileLevelIdValPart( |
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415 const TDesC8& aFmtpValue, |
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416 TInt aValPartOffset, |
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417 TInt aValPartLen, |
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418 const TDesC8& aDefaultVal ) |
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419 { |
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420 TPtrC8 profileLevelVal( aDefaultVal ); |
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421 |
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422 TPtrC8 profileLevelIdVal = ParseProfileLevelId( aFmtpValue ); |
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423 if ( profileLevelIdVal.Length() >= aValPartOffset + aValPartLen ) |
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424 { |
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425 // Take just value part |
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426 profileLevelVal.Set( profileLevelIdVal.Mid( aValPartOffset, aValPartLen ) ); |
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427 } |
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428 |
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429 return profileLevelVal; |
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430 } |
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431 |
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432 // ----------------------------------------------------------------------------- |
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433 // CMceComAvcCodec::ReplaceProfileLevelIdValuePart |
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434 // ----------------------------------------------------------------------------- |
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435 // |
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436 TInt CMceComAvcCodec::ReplaceProfileLevelIdValuePart( |
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437 TDes8& aModifiedFmtp, |
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438 const TDesC8& aReplacement, |
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439 TInt aValPartOffset ) |
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440 { |
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441 TInt err( KErrArgument ); |
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442 |
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443 TInt startIndex = aModifiedFmtp.FindF( KMceAvcProfileLevelIdFmtp() ); |
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444 startIndex = ( startIndex != KErrNotFound ) ? |
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445 ( startIndex + KMceAvcProfileLevelIdFmtp().Length() ) : startIndex; |
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446 if ( startIndex != KErrNotFound && |
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447 ( startIndex + aValPartOffset + aReplacement.Length() ) <= aModifiedFmtp.Length() ) |
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448 { |
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449 aModifiedFmtp.Replace( |
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450 startIndex + aValPartOffset, |
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451 aReplacement.Length(), |
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452 aReplacement ); |
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453 err = KErrNone; |
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454 } |
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455 return err; |
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456 } |
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457 |
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458 // ----------------------------------------------------------------------------- |
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459 // CMceComAvcCodec::ParsePacketizationMode |
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460 // ----------------------------------------------------------------------------- |
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461 // |
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462 TPtrC8 CMceComAvcCodec::ParsePacketizationMode( const TDesC8& aFmtpValue ) |
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463 { |
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464 // Non-existing packetization mode means single nal mode |
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465 TPtrC8 packetizationModeVal = |
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466 GetFmtpAttributeValuePart( aFmtpValue, |
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467 KMceAvcPacketizationModeFmtp(), |
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468 KMceAvcPacketizationModeValLen, |
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469 KMceAvcPacketizationModeSingleNal ); |
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470 |
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471 return packetizationModeVal; |
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472 } |
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473 |
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474 // ----------------------------------------------------------------------------- |
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475 // CMceComAvcCodec::GetFmtpAttributeValuePart |
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476 // ----------------------------------------------------------------------------- |
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477 // |
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478 TPtrC8 CMceComAvcCodec::GetFmtpAttributeValuePart( |
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479 const TDesC8& aFmtpValue, |
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480 const TDesC8& aFmtpAttributeName, |
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481 TInt aValLen, |
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482 const TDesC8& aDefaultVal ) |
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483 { |
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484 TPtrC8 outputValuePart( aDefaultVal ); |
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485 |
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486 TInt valPos = aFmtpValue.FindF( aFmtpAttributeName ); |
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487 valPos = ( valPos != KErrNotFound ) ? |
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488 ( valPos + aFmtpAttributeName.Length() ) : valPos; |
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489 if ( valPos != KErrNotFound && |
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490 ( valPos + aValLen ) <= aFmtpValue.Length() ) |
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491 { |
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492 outputValuePart.Set( aFmtpValue.Mid( valPos, aValLen ) ); |
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493 } |
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494 return outputValuePart; |
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495 } |
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496 |
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497 #ifdef MCE_COMMON_SERVER_SIDE |
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498 |
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499 // ----------------------------------------------------------------------------- |
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500 // CMceComAvcCodec::SetFmtpProposalL |
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501 // ----------------------------------------------------------------------------- |
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502 // |
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503 TBool CMceComAvcCodec::SetFmtpProposalL( const TDesC8& aFmtpProposal ) |
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504 { |
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505 HBufC8* proposal = aFmtpProposal.AllocL(); |
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506 delete iFmtpProposal; |
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507 iFmtpProposal = proposal; |
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508 |
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509 CMccCodecInformationFactory* factory = CMccCodecInformationFactory::NewL(); |
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510 CleanupStack::PushL( factory ); |
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511 CMccCodecInformation* codec = |
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512 factory->CreateCodecInformationL( iSdpName ); |
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513 CleanupStack::PushL( codec ); |
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514 |
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515 TRAPD( err, codec->SetFmtpAttrL( *iFmtpProposal ) ); |
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516 if ( err == KErrNoMemory ) |
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517 { |
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518 User::Leave( err ); |
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519 } |
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520 |
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521 CleanupStack::PopAndDestroy( codec ); |
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522 CleanupStack::PopAndDestroy( factory ); |
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523 |
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524 return ( err == KErrNone ); |
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525 } |
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526 |
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527 // ----------------------------------------------------------------------------- |
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528 // CMceComAvcCodec::SetFmtpFromIncomingSdpL |
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529 // ----------------------------------------------------------------------------- |
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530 // |
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531 void CMceComAvcCodec::SetFmtpFromIncomingSdpL( |
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532 const TDesC8& aFmtpAttribute, |
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533 TBool aRoleAnswerer, |
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534 TBool aReset ) |
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535 { |
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536 HBufC8* fmtp = aFmtpAttribute.AllocLC(); |
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537 TPtr8 ptrFmtp( fmtp->Des() ); |
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538 |
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539 if ( !aRoleAnswerer ) |
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540 { |
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541 // If no strict match, we are accepting fmtp even it is against specs. |
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542 // In that case, replace level value with existing level |
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543 TBool decodes = Decodes( iSdpName, aFmtpAttribute ); |
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544 if ( !decodes ) |
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545 { |
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546 TPtrC8 existingLevel = |
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547 ParseProfileLevelIdValPart( FmtpAttr(), |
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548 KMceAvcProfileLevelValOffset, |
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549 KMceAvcProfileLevelValLen, |
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550 KMceAvcProfileLevelOnly1 ); |
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551 ReplaceProfileLevelIdValuePart( |
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552 ptrFmtp, existingLevel, KMceAvcProfileLevelValOffset ); |
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553 } |
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554 |
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555 // In offerer side, tolerate also incorrect iop part usage |
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556 // by using existing iop val |
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557 TPtrC8 existingIop = |
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558 ParseProfileLevelIdValPart( FmtpAttr(), |
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559 KMceAvcProfileIopValOffset, |
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560 KMceAvcProfileIopValLen, |
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561 KMceAvcProfileIopDefault ); |
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562 ReplaceProfileLevelIdValuePart( |
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563 ptrFmtp, existingIop, KMceAvcProfileIopValOffset ); |
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564 } |
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565 |
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566 if ( iStream && iStream->BoundStream() ) |
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567 { |
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568 // In case of two-way video streams, sprop-parameter-set (configkey) |
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569 // from incoming sdp is put to receive stream and it will not override |
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570 // existing key in sendstream |
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571 if ( IS_SENDSTREAM( iStream ) && IS_RECEIVESTREAM( &iStream->BoundStreamL() ) ) |
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572 { |
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573 CMceComVideoCodec* boundCodec = |
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574 static_cast<CMceComVideoCodec*>( |
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575 iStream->BoundStreamL().FindCodecL( *this ) ); |
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576 |
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577 HBufC8* spropParameterSetsVal = |
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578 StripFmtpParameterL( ptrFmtp, KMceAvcSpropParameterSetsFmtp() ); |
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579 CleanupStack::PushL( spropParameterSetsVal ); |
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580 if ( boundCodec && |
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581 CMceComVideoCodec::IsConfigKeyValid( spropParameterSetsVal ) ) |
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582 { |
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583 boundCodec->SetConfigKeyL( spropParameterSetsVal ); |
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584 } |
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585 CleanupStack::PopAndDestroy( spropParameterSetsVal ); |
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586 } |
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587 } |
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588 |
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589 SetFmtpAttributeL( ptrFmtp, aReset ); |
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590 |
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591 CleanupStack::PopAndDestroy( fmtp ); |
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592 } |
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593 |
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594 // ----------------------------------------------------------------------------- |
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595 // CMceComAvcCodec::FtmpForOutgoingSdpLC |
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596 // ----------------------------------------------------------------------------- |
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597 // |
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598 HBufC8* CMceComAvcCodec::FtmpForOutgoingSdpLC() |
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599 { |
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600 HBufC8* fmtp = CMceComCodec::FtmpForOutgoingSdpLC(); |
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601 if ( iStream && iStream->BoundStream() ) |
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602 { |
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603 // In case of two-way video streams, sprop-parameter-set (configkey) |
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604 // for outgoing sdp is taken from send stream |
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605 if ( IS_RECEIVESTREAM( iStream ) && IS_SENDSTREAM( &iStream->BoundStreamL() ) ) |
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606 { |
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607 TPtr8 ptrFmtp( fmtp->Des() ); |
|
608 |
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609 CMceComVideoCodec* boundCodec = |
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610 static_cast<CMceComVideoCodec*>( |
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611 iStream->BoundStreamL().FindCodecL( *this ) ); |
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612 if ( boundCodec && boundCodec->IsConfigKeyValid() ) |
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613 { |
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614 HBufC8* spropParameterSetsVal = |
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615 StripFmtpParameterL( ptrFmtp, KMceAvcSpropParameterSetsFmtp() ); |
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616 delete spropParameterSetsVal; |
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617 |
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618 HBufC8* newFmtp = AddFmtpParameterL( ptrFmtp, |
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619 KMceAvcSpropParameterSetsFmtp(), |
|
620 *boundCodec->iConfigKey ); |
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621 CleanupStack::PopAndDestroy( fmtp ); |
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622 fmtp = newFmtp; |
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623 CleanupStack::PushL( fmtp ); |
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624 } |
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625 |
|
626 } |
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627 } |
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628 return fmtp; |
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629 } |
|
630 |
|
631 // ----------------------------------------------------------------------------- |
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632 // CMceComAvcCodec::StripFmtpParameterL |
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633 // ----------------------------------------------------------------------------- |
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634 // |
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635 HBufC8* CMceComAvcCodec::StripFmtpParameterL( |
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636 TPtr8& aInputFmtp, |
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637 const TDesC8& aStrippedParameter ) |
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638 { |
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639 HBufC8* strippedParameter = NULL; |
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640 TInt startIndex = aInputFmtp.FindF( aStrippedParameter ); |
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641 if ( startIndex != KErrNotFound ) |
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642 { |
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643 TPtrC8 parameterVal = aInputFmtp.Mid( startIndex + aStrippedParameter.Length() ); |
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644 TInt endIndex = parameterVal.Locate( KMceAvcFmtpParameterSeparator ); |
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645 if ( endIndex == KErrNotFound ) |
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646 { |
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647 endIndex = parameterVal.Length(); |
|
648 } |
|
649 |
|
650 if ( endIndex > 0 ) |
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651 { |
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652 strippedParameter = parameterVal.Mid( 0, endIndex ).AllocLC(); |
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653 |
|
654 // Remove stripped part from input fmtp |
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655 TInt deleteLen( endIndex + aStrippedParameter.Length() + 1 ); |
|
656 |
|
657 aInputFmtp.Delete( startIndex, deleteLen ); |
|
658 aInputFmtp.Trim(); |
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659 |
|
660 CleanupStack::Pop( strippedParameter ); |
|
661 } |
|
662 } |
|
663 return strippedParameter; |
|
664 } |
|
665 |
|
666 // ----------------------------------------------------------------------------- |
|
667 // CMceComAvcCodec::AddFmtpParameterL |
|
668 // ----------------------------------------------------------------------------- |
|
669 // |
|
670 HBufC8* CMceComAvcCodec::AddFmtpParameterL( |
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671 const TDesC8& aInputFmtp, |
|
672 const TDesC8& aAddedParameter, |
|
673 const TDesC8& aAddedParameterVal ) |
|
674 { |
|
675 const TInt KMceAvcAdditionalLen = 2; |
|
676 HBufC8* outputFmtp = HBufC8::NewL( aInputFmtp.Length() + |
|
677 aAddedParameter.Length() + |
|
678 aAddedParameterVal.Length() + |
|
679 KMceAvcAdditionalLen ); |
|
680 TPtr8 ptrOutputFmtp( outputFmtp->Des() ); |
|
681 |
|
682 // Add original param |
|
683 ptrOutputFmtp.Append( aInputFmtp ); |
|
684 |
|
685 // Add separators if needed |
|
686 TInt lastSeparatorIndex = aInputFmtp.LocateReverse( KMceAvcFmtpParameterSeparator ); |
|
687 if ( aInputFmtp.Length() > 0 && lastSeparatorIndex < ( aInputFmtp.Length() - 2 ) ) |
|
688 { |
|
689 ptrOutputFmtp.Append( KMceAvcFmtpParameterSeparator ); |
|
690 } |
|
691 TInt lastSpaceIndex = aInputFmtp.LocateReverse( KMceAvcFtmpParameterSpace ); |
|
692 if ( aInputFmtp.Length() > 0 && lastSpaceIndex < ( aInputFmtp.Length() - 1 ) ) |
|
693 { |
|
694 ptrOutputFmtp.Append( KMceAvcFtmpParameterSpace ); |
|
695 } |
|
696 |
|
697 // Add new parameter |
|
698 ptrOutputFmtp.Append( aAddedParameter ); |
|
699 ptrOutputFmtp.Append( aAddedParameterVal ); |
|
700 |
|
701 return outputFmtp; |
|
702 } |
|
703 |
|
704 #endif |
|
705 |
|
706 // End of File |
|
707 |
|
708 |