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1 /* |
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2 * Copyright (c) 2002-2004 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: MCC AMR CodecInformation |
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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 FILES |
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22 #include <delimitedpathsegment8.h> |
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23 |
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24 #include "mmcccodecamr.h" |
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25 #include "mccuids.hrh" |
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26 #include "mmccinterfacelogs.h" |
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27 |
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28 |
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29 // CONSTANTS |
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30 const TInt KUndefinedMode( -1 ); |
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31 const TInt KMaxModeSetValue( 8 ); |
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32 |
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33 const TInt KNotSet = -1; |
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34 |
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35 const TInt KNumValue1 = 1; |
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36 const TInt KNumValue2 = 2; |
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37 |
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38 // MODULE DATA STRUCTURES |
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39 |
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40 const TUint8 KAmrKAPayloadSize = 6; |
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41 const TUint8 KAmrKeepAlivePayload[KAmrKAPayloadSize] = |
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42 { |
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43 0xF4, 0x00, 0x00, 0x00, 0x00, 0x00 |
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44 }; |
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45 |
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46 // ============================ MEMBER FUNCTIONS =============================== |
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47 |
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48 // ----------------------------------------------------------------------------- |
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49 // CMccCodecAMR::CMccCodecAMR |
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50 // default constructor |
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51 // ----------------------------------------------------------------------------- |
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52 // |
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53 CMccCodecAMR::CMccCodecAMR() : CMccCodecInformation() |
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54 { |
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55 iBitrateMask = KMccAllowedAmrNbBitrateAll; |
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56 iMaxRed = KNotSet; |
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57 iDefaultBitrateMask = KMccAllowedAmrNbBitrateAll; |
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58 iDefaultBitrate = KAmrNbBitrate122; |
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59 iAdditionalInfoMask = KMccAllowedAmrAdditionalInfo; |
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60 iMaxModeSetVal = KMaxModeSetValue; |
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61 } |
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62 |
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63 // ----------------------------------------------------------------------------- |
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64 // CMccCodecAMR::ConstructL |
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65 // Symbian 2nd phase constructor can leave. |
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66 // ----------------------------------------------------------------------------- |
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67 // |
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68 void CMccCodecAMR::ConstructL( ) |
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69 { |
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70 __INTERFACE( "CMccCodecAMR::ConstructL" ) |
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71 iSdpName.Copy( KAMRSdpName ); |
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72 iKeepAliveData.Copy( KAmrKeepAlivePayload ); |
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73 iFmtpAttr = HBufC8::NewL( 1 ); |
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74 TPtr8 ptr = iFmtpAttr->Des(); |
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75 ptr.Append( KNullDesC ); |
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76 |
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77 iFourCC = KMccFourCCIdAMRNB; |
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78 SetSamplingFreq( KAmrNbSamplingFreq ); |
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79 EnableVAD( EFalse ); |
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80 iHwFrameTime = KAMRDefaultHwFrameTime; // default 20ms |
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81 iFrameSize = KAMRDefaultFrameSize; |
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82 SetMaxPTime( KAMRDefaultMaxPTime ); // recommended "limit" 200ms |
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83 SetPTime( KAMRDefaultPTime ); // default 20ms |
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84 SetBitrate( KAmrNbBitrate122 ); // max bitrate |
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85 SetPayloadType( KDefaultAmrNbPT ); |
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86 SetCodecMode( EBandwidthEfficient ); |
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87 iNumOfChannels = 1; |
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88 |
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89 iPayloadFormatEncoder = KImplUidAmrPayloadFormatEncode; |
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90 iPayloadFormatDecoder = KImplUidAmrPayloadFormatDecode; |
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91 |
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92 __INTERFACE( "CMccCodecAMR::ConstructL, exit" ) |
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93 } |
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94 |
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95 // ----------------------------------------------------------------------------- |
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96 // CMccCodecAMR::NewL |
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97 // Static constructor. |
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98 // ----------------------------------------------------------------------------- |
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99 // |
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100 CMccCodecAMR* CMccCodecAMR::NewL() |
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101 { |
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102 CMccCodecAMR* self = new (ELeave) CMccCodecAMR; |
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103 CleanupStack::PushL( self ); |
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104 self->ConstructL(); |
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105 CleanupStack::Pop( self ); |
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106 return self; |
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107 } |
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108 |
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109 // ----------------------------------------------------------------------------- |
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110 // CMccCodecAMR::~CMccCodecAMR |
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111 // Destructor |
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112 // ----------------------------------------------------------------------------- |
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113 // |
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114 CMccCodecAMR::~CMccCodecAMR() |
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115 { |
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116 __INTERFACE( "CMccCodecAMR::~CMccCodecAMR" ) |
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117 } |
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118 |
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119 |
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120 // ----------------------------------------------------------------------------- |
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121 // CMccCodecAMR::GetFmtpL |
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122 // Gets the fmtp attribute |
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123 // ----------------------------------------------------------------------------- |
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124 // |
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125 TDesC8& CMccCodecAMR::GetFmtpL() |
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126 { |
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127 __INTERFACE( "CMccCodecAMR::GetFmtpL" ) |
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128 if ( iFmtpAttr ) |
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129 { |
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130 delete iFmtpAttr; |
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131 iFmtpAttr = NULL; |
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132 } |
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133 |
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134 if( iBitrateMask ) |
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135 { |
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136 RArray<TUint> array; |
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137 CleanupClosePushL( array ); |
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138 |
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139 if( GetAllowedBitratesArrayL( array ) == KErrNone ) |
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140 { |
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141 CreateFmtpAttrListL( array ); |
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142 } |
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143 else |
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144 { |
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145 CreateFmtpAttrListL(); |
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146 } |
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147 |
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148 CleanupStack::Pop( &array ); |
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149 array.Close(); |
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150 } |
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151 else |
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152 { |
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153 CreateFmtpAttrListL(); |
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154 } |
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155 |
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156 |
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157 __INTERFACE_STR( "CMccCodecAMR::GetFmtpL", *iFmtpAttr); |
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158 return *iFmtpAttr; |
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159 } |
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160 |
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161 // ----------------------------------------------------------------------------- |
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162 // CMccCodecAMR::GetBitrateModeSet |
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163 // Get the mode from the bitrate |
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164 // ----------------------------------------------------------------------------- |
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165 // |
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166 TInt CMccCodecAMR::GetBitrateModeSet( TUint aBitrate ) |
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167 { |
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168 __INTERFACE( "CMccCodecAMR::GetBitrateModeSet" ) |
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169 TInt mode( KUndefinedMode ); |
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170 |
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171 switch ( aBitrate ) |
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172 { |
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173 case KAmrNbBitrate475: |
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174 { |
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175 mode = KAMRMode0; |
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176 break; |
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177 } |
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178 case KAmrNbBitrate515: |
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179 { |
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180 mode = KAMRMode1; |
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181 break; |
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182 } |
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183 case KAmrNbBitrate590: |
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184 { |
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185 mode = KAMRMode2; |
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186 break; |
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187 } |
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188 case KAmrNbBitrate670: |
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189 { |
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190 mode = KAMRMode3; |
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191 break; |
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192 } |
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193 case KAmrNbBitrate740: |
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194 { |
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195 mode = KAMRMode4; |
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196 break; |
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197 } |
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198 case KAmrNbBitrate795: |
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199 { |
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200 mode = KAMRMode5; |
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201 break; |
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202 } |
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203 case KAmrNbBitrate102: |
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204 { |
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205 mode = KAMRMode6; |
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206 break; |
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207 } |
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208 case KAmrNbBitrate122: |
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209 { |
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210 mode = KAMRMode7; |
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211 break; |
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212 } |
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213 default: |
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214 { |
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215 break; |
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216 } |
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217 } |
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218 |
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219 __INTERFACE_INT1( "CMccCodecAMR::GetBitrateModeSet, exit with mode", mode ) |
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220 return mode; |
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221 } |
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222 |
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223 // ----------------------------------------------------------------------------- |
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224 // CMccCodecAMR::SetBitrateModeSet |
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225 // Sets the bitrate used with AMR codec from the mode . |
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226 // ----------------------------------------------------------------------------- |
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227 // |
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228 void CMccCodecAMR::SetBitrateModeSet( TUint aModeSet ) |
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229 { |
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230 __INTERFACE( "CMccCodecAMR::SetBitrateModeSet" ) |
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231 switch ( aModeSet ) |
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232 { |
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233 case KAMRMode0: |
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234 { |
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235 SetBitrate( KAmrNbBitrate475 ); |
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236 break; |
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237 } |
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238 case KAMRMode1: |
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239 { |
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240 SetBitrate( KAmrNbBitrate515 ); |
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241 break; |
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242 } |
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243 case KAMRMode2: |
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244 { |
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245 SetBitrate( KAmrNbBitrate590 ); |
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246 break; |
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247 } |
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248 case KAMRMode3: |
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249 { |
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250 SetBitrate( KAmrNbBitrate670 ); |
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251 break; |
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252 } |
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253 case KAMRMode4: |
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254 { |
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255 SetBitrate( KAmrNbBitrate740 ); |
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256 break; |
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257 } |
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258 case KAMRMode5: |
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259 { |
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260 SetBitrate( KAmrNbBitrate795 ); |
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261 break; |
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262 } |
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263 case KAMRMode6: |
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264 { |
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265 SetBitrate( KAmrNbBitrate102 ); |
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266 break; |
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267 } |
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268 case KAMRMode7: |
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269 { |
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270 SetBitrate( KAmrNbBitrate122 ); |
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271 break; |
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272 } |
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273 default: |
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274 { |
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275 SetBitrate( KAmrNbBitrate475 ); |
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276 break; |
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277 } |
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278 } |
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279 __INTERFACE( "CMccCodecAMR::SetBitrateModeSet, exit" ) |
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280 } |
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281 |
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282 // ----------------------------------------------------------------------------- |
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283 // CMccCodecAMR::GetBitrateMaskFromMode |
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284 // Get the bitrate mask from the mode |
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285 // ----------------------------------------------------------------------------- |
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286 // |
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287 TInt CMccCodecAMR::GetBitrateMaskFromMode( TUint aMode, TUint& aBitrateMask ) |
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288 { |
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289 __INTERFACE( "CMccCodecAMR::GetBitrateMaskFromMode" ) |
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290 switch ( aMode ) |
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291 { |
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292 case KAMRMode0: |
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293 { |
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294 aBitrateMask = KMccAllowedAmrNbBitrate475; |
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295 break; |
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296 } |
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297 |
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298 case KAMRMode1: |
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299 { |
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300 aBitrateMask = KMccAllowedAmrNbBitrate515; |
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301 break; |
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302 } |
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303 |
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304 case KAMRMode2: |
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305 { |
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306 aBitrateMask = KMccAllowedAmrNbBitrate590; |
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307 break; |
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308 } |
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309 |
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310 case KAMRMode3: |
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311 { |
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312 aBitrateMask = KMccAllowedAmrNbBitrate670; |
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313 break; |
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314 } |
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315 case KAMRMode4: |
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316 { |
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317 aBitrateMask = KMccAllowedAmrNbBitrate740; |
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318 break; |
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319 } |
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320 case KAMRMode5: |
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321 { |
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322 aBitrateMask = KMccAllowedAmrNbBitrate795; |
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323 break; |
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324 } |
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325 case KAMRMode6: |
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326 { |
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327 aBitrateMask = KMccAllowedAmrNbBitrate102; |
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328 break; |
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329 } |
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330 case KAMRMode7: |
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331 { |
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332 aBitrateMask = KMccAllowedAmrNbBitrate122; |
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333 break; |
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334 } |
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335 |
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336 default: |
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337 { |
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338 __INTERFACE( "CMccCodecAMR::GetBitrateMaskFromMode, exit KErrNotFound" ) |
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339 return KErrNotFound; |
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340 } |
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341 } |
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342 |
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343 __INTERFACE( "CMccCodecAMR::GetBitrateMaskFromMode, exit" ) |
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344 return KErrNone; |
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345 } |
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346 |
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347 // ----------------------------------------------------------------------------- |
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348 // CMccCodecAMR::CreateFmtpModeSet |
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349 // Creates the mode-set value of the FMTP according to the bitrates |
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350 // ----------------------------------------------------------------------------- |
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351 // |
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352 TBool CMccCodecAMR::CreateFmtpModeSet( TDes8& aBuf, |
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353 const RArray<TUint>& aBitrates ) |
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354 { |
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355 __INTERFACE( "CMccCodecAMR::CreateFmtpModeSet" ) |
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356 TInt tempMode; |
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357 TBool modeSetStringAdded( EFalse ); |
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358 _LIT8( KTxtTempMode, "%d" ); |
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359 _LIT8( KTxtComma, "," ); |
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360 |
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361 TInt count( aBitrates.Count() ); |
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362 |
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363 if ( count > iMaxModeSetVal ) |
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364 { |
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365 return modeSetStringAdded; |
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366 } |
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367 |
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368 for ( TInt i = 0; i < count; i++ ) |
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369 { |
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370 tempMode = this->GetBitrateModeSet( aBitrates[i] ); |
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371 // Do not modify the buffer until we have a recognized mode value |
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372 if ( tempMode >= 0 ) |
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373 { |
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374 if ( !modeSetStringAdded ) |
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375 { |
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376 // Insert the mode string before the first value |
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377 aBuf.Append( KTxtModeSet ); // "mode-set=" |
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378 modeSetStringAdded = ETrue; |
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379 |
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380 // Also clear the bitrate mask |
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381 SetBitrateMask( 0, ETrue ); |
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382 } |
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383 else |
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384 { |
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385 // Insert a comma before all other values |
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386 aBuf.Append( KTxtComma ); |
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387 } |
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388 // Update the bitrate mask |
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389 TUint currentMask( 0 ); |
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390 GetBitrateMaskFromMode( tempMode, currentMask ); |
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391 |
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392 SetBitrateMask( ( iBitrateMask | currentMask ), ETrue ); |
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393 |
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394 // Update the FMTP string |
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395 aBuf.AppendFormat( KTxtTempMode, tempMode ); |
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396 } |
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397 } |
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398 __INTERFACE( "CMccCodecAMR::CreateFmtpModeSet, exit" ) |
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399 return modeSetStringAdded; |
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400 } |
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401 |
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402 // ----------------------------------------------------------------------------- |
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403 // CMccCodecAMR::SetBitrate |
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404 // Sets the bitrate used with AMR codec. |
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405 // ----------------------------------------------------------------------------- |
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406 // |
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407 TInt CMccCodecAMR::SetBitrate( TUint aBitrate ) |
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408 { |
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409 TBool isValid( ETrue ); |
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410 |
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411 switch ( aBitrate ) |
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412 { |
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413 case KAmrNbBitrate475: |
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414 break; |
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415 case KAmrNbBitrate515: |
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416 break; |
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417 case KAmrNbBitrate590: |
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418 break; |
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419 case KAmrNbBitrate670: |
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420 break; |
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421 case KAmrNbBitrate740: |
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422 break; |
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423 case KAmrNbBitrate795: |
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424 break; |
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425 case KAmrNbBitrate102: |
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426 break; |
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427 case KAmrNbBitrate122: |
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428 break; |
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429 default: |
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430 isValid = EFalse; |
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431 break; |
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432 } |
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433 if ( isValid ) |
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434 { |
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435 iBitrate = aBitrate; |
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436 return KErrNone; |
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437 } |
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438 else |
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439 { |
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440 return KErrNotSupported; |
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441 } |
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442 } |
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443 |
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444 // ----------------------------------------------------------------------------- |
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445 // CMccCodecAMR::SetBitrateFromBitrateMask |
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446 // Sets the bitrate used with AMR codec from the bitrateMask. |
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447 // ----------------------------------------------------------------------------- |
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448 // |
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449 TInt CMccCodecAMR::SetBitrateFromBitrateMask( TUint aBitrateMask ) |
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450 { |
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451 if ( aBitrateMask & KMccAllowedModeChangePeriod2 ) |
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452 { |
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453 SetModeChangePeriod( KNumValue2 ); |
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454 } |
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455 |
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456 if ( aBitrateMask & KMccAllowedModeChangeNeighbor1 ) |
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457 { |
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458 SetModeChangeNeighbor( ETrue ); |
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459 } |
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460 |
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461 if( aBitrateMask & KMccAllowedAmrNbBitrate122 ) |
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462 { |
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463 SetBitrate( KAmrNbBitrate122 ); |
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464 return KErrNone; |
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465 } |
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466 else if( aBitrateMask & KMccAllowedAmrNbBitrate102 ) |
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467 { |
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468 SetBitrate( KAmrNbBitrate102 ); |
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469 return KErrNone; |
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470 } |
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471 else if( aBitrateMask & KMccAllowedAmrNbBitrate795 ) |
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472 { |
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473 SetBitrate( KAmrNbBitrate795 ); |
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474 return KErrNone; |
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475 } |
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476 else if( aBitrateMask & KMccAllowedAmrNbBitrate740 ) |
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477 { |
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478 SetBitrate( KAmrNbBitrate740 ); |
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479 return KErrNone; |
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480 } |
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481 else if( aBitrateMask & KMccAllowedAmrNbBitrate670 ) |
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482 { |
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483 SetBitrate( KAmrNbBitrate670 ); |
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484 return KErrNone; |
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485 } |
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486 else if( aBitrateMask & KMccAllowedAmrNbBitrate590 ) |
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487 { |
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488 SetBitrate( KAmrNbBitrate590 ); |
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489 return KErrNone; |
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490 } |
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491 else if( aBitrateMask & KMccAllowedAmrNbBitrate515 ) |
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492 { |
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493 SetBitrate( KAmrNbBitrate515 ); |
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494 return KErrNone; |
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495 } |
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496 else if( aBitrateMask & KMccAllowedAmrNbBitrate475 ) |
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497 { |
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498 SetBitrate( KAmrNbBitrate475 ); |
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499 return KErrNone; |
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500 } |
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501 else |
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502 { |
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503 return KErrArgument; |
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504 } |
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505 } |
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506 |
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507 // ----------------------------------------------------------------------------- |
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508 // CMccCodecAMR::SetSamplingFreq |
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509 // Sets the sampling frequency. |
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510 // ----------------------------------------------------------------------------- |
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511 // |
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512 TInt CMccCodecAMR::SetSamplingFreq( TUint32 aSamplingFreq ) |
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513 { |
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514 // AMR-WB is not supported yet |
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515 if ( KAmrNbSamplingFreq == aSamplingFreq /* || KAmrWbSamplingFreq == aSamplingFreq */ ) |
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516 { |
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517 iSamplingFreq = aSamplingFreq; |
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518 return KErrNone; |
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519 } |
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520 else |
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521 { |
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522 return KErrNotSupported; |
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523 } |
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524 } |
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525 |
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526 // ----------------------------------------------------------------------------- |
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527 // CMccCodecAMR::SetSdpName |
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528 // Sets the SDP name |
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529 // ----------------------------------------------------------------------------- |
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530 TInt CMccCodecAMR::SetSdpName( const TDesC8& aSdpName ) |
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531 { |
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532 if ( !aSdpName.CompareF( KAMRSdpName ) ) |
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533 { |
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534 iSdpName.Copy( aSdpName ); |
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535 } |
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536 else |
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537 { |
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538 return KErrNotSupported; |
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539 } |
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540 |
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541 return KErrNone; |
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542 } |
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543 |
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544 // ----------------------------------------------------------------------------- |
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545 // CMccCodecAMR::PayloadType |
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546 // Sets the payload type |
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547 // ----------------------------------------------------------------------------- |
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548 // |
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549 TInt CMccCodecAMR::SetPayloadType( TUint8 aPayloadType ) |
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550 { |
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551 if ( aPayloadType < KMinDynamicPT || |
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552 aPayloadType > KMaxPayloadType ) |
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553 { |
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554 return KErrArgument; |
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555 } |
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556 else |
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557 { |
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558 iPayloadType = aPayloadType; |
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559 return KErrNone; |
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560 } |
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561 } |
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562 |
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563 // ----------------------------------------------------------------------------- |
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564 // CMccCodecAMR::SetCodecMode |
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565 // Sets the codec mode |
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566 // ----------------------------------------------------------------------------- |
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567 // |
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568 TInt CMccCodecAMR::SetCodecMode( TCodecMode aCodecMode ) |
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569 { |
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570 if ( EBandwidthEfficient == aCodecMode || EOctetAligned == aCodecMode ) |
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571 { |
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572 iCodecMode = aCodecMode; |
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573 return KErrNone; |
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574 } |
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575 else |
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576 { |
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577 return KErrNotSupported; |
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578 } |
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579 } |
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580 |
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581 // ----------------------------------------------------------------------------- |
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582 // CMccCodecAMR::SetAllowedBitrates |
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583 // Set allowed bitrates |
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584 // ----------------------------------------------------------------------------- |
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585 // |
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586 TInt CMccCodecAMR::SetAllowedBitrates( TUint aBitrateMask ) |
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587 { |
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588 //Confirm that the bitrate mask is valid |
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589 //I.e. after all the valid bitrates are set to zero the value should be zero |
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590 if ( (aBitrateMask >> 12 ) > 0 ) |
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591 { |
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592 return KErrArgument; |
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593 } |
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594 else |
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595 { |
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596 /* |
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597 In the future the allowed bitrates will be fetched from the codec |
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598 I.e. the KMccAllowedAmrNbBitrateAll will be changed to the bitrates |
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599 supported by the codec |
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600 */ |
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601 SetBitrateMask( KMccAllowedAmrNbBitrateAll & aBitrateMask ); |
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602 SetBitrateMaskAdditionalInfo( aBitrateMask ); |
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603 |
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604 SetBitrateFromBitrateMask( iBitrateMask ); |
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605 } |
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606 |
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607 return KErrNone; |
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608 } |
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609 |
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610 // ----------------------------------------------------------------------------- |
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611 // CMccCodecAMR::SetRedCount |
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612 // Sets level of redundancy. |
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613 // ----------------------------------------------------------------------------- |
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614 // |
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615 TInt CMccCodecAMR::SetRedCount( TUint aRedCount ) |
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616 { |
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617 TInt retVal( KErrArgument ); |
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618 if ( iMaxRed != KNotSet ) |
|
619 { |
|
620 if ( KMaxAmrFecRedCount >= aRedCount ) |
|
621 { |
|
622 TAlgoUsed algo = aRedCount > 0 ? EAmrFecUsed : ENoAlgoUsed; |
|
623 SetAlgo( algo ); |
|
624 iRedCount = aRedCount; |
|
625 retVal = KErrNone; |
|
626 } |
|
627 } |
|
628 else if ( KMaxGenRedCount >= aRedCount ) |
|
629 { |
|
630 TAlgoUsed algo = aRedCount > 0 ? EGenRedUsed : ENoAlgoUsed; |
|
631 SetAlgo( algo ); |
|
632 iRedCount = aRedCount; |
|
633 retVal = KErrNone; |
|
634 } |
|
635 else |
|
636 { |
|
637 // NOP |
|
638 } |
|
639 return retVal; |
|
640 } |
|
641 |
|
642 // ----------------------------------------------------------------------------- |
|
643 // CMccCodecAMR::GetAllowedBitratesArrayL |
|
644 // Get allowed bitrates in an array |
|
645 // ----------------------------------------------------------------------------- |
|
646 // |
|
647 TInt CMccCodecAMR::GetAllowedBitratesArrayL( RArray<TUint>& aBitratesArray ) |
|
648 { |
|
649 if( iBitrateMask & KMccAllowedAmrNbBitrate475 ) |
|
650 { |
|
651 User::LeaveIfError( aBitratesArray.Append( KAmrNbBitrate475 ) ); |
|
652 } |
|
653 if( iBitrateMask & KMccAllowedAmrNbBitrate515 ) |
|
654 { |
|
655 User::LeaveIfError( aBitratesArray.Append( KAmrNbBitrate515 ) ); |
|
656 } |
|
657 if( iBitrateMask & KMccAllowedAmrNbBitrate590 ) |
|
658 { |
|
659 User::LeaveIfError( aBitratesArray.Append( KAmrNbBitrate590 ) ); |
|
660 } |
|
661 if( iBitrateMask & KMccAllowedAmrNbBitrate670 ) |
|
662 { |
|
663 User::LeaveIfError( aBitratesArray.Append( KAmrNbBitrate670 ) ); |
|
664 } |
|
665 if( iBitrateMask & KMccAllowedAmrNbBitrate740 ) |
|
666 { |
|
667 User::LeaveIfError( aBitratesArray.Append( KAmrNbBitrate740 ) ); |
|
668 } |
|
669 if( iBitrateMask & KMccAllowedAmrNbBitrate795 ) |
|
670 { |
|
671 User::LeaveIfError( aBitratesArray.Append( KAmrNbBitrate795 ) ); |
|
672 } |
|
673 if( iBitrateMask & KMccAllowedAmrNbBitrate102 ) |
|
674 { |
|
675 User::LeaveIfError( aBitratesArray.Append( KAmrNbBitrate102 ) ); |
|
676 } |
|
677 if( iBitrateMask & KMccAllowedAmrNbBitrate122 ) |
|
678 { |
|
679 User::LeaveIfError( aBitratesArray.Append( KAmrNbBitrate122 ) ); |
|
680 } |
|
681 |
|
682 return KErrNone; |
|
683 } |
|
684 |
|
685 // ----------------------------------------------------------------------------- |
|
686 // CMccCodecAMR::EnableVAD |
|
687 // Enable / Disable VAD |
|
688 // ----------------------------------------------------------------------------- |
|
689 // |
|
690 TInt CMccCodecAMR::EnableVAD( TBool aEnableVAD ) |
|
691 { |
|
692 iEnableVAD = aEnableVAD; |
|
693 return KErrNone; |
|
694 } |
|
695 |
|
696 |
|
697 // ----------------------------------------------------------------------------- |
|
698 // CMccCodecAMR::SetPTime |
|
699 // Set PTime |
|
700 // ----------------------------------------------------------------------------- |
|
701 // |
|
702 TInt CMccCodecAMR::SetPTime( TUint aPTime ) |
|
703 { |
|
704 if ( ( aPTime <= iMaxPTime ) && (( aPTime % KDefaultPtime ) == 0 ) && |
|
705 aPTime && ( KMinPtime < aPTime ) ) |
|
706 { |
|
707 iPTime = aPTime; |
|
708 return KErrNone; |
|
709 } |
|
710 else |
|
711 { |
|
712 return KErrArgument; |
|
713 } |
|
714 } |
|
715 |
|
716 // ----------------------------------------------------------------------------- |
|
717 // CMccCodecAMR::SetMaxPTime |
|
718 // Set Max PTime |
|
719 // ----------------------------------------------------------------------------- |
|
720 // |
|
721 TInt CMccCodecAMR::SetMaxPTime( TUint aMaxPTime ) |
|
722 { |
|
723 if ( aMaxPTime && ( aMaxPTime <= KAMRDefaultMaxPTime ) && |
|
724 ( ( aMaxPTime % KDefaultPtime ) == 0 ) && ( KMinPtime < aMaxPTime ) |
|
725 && iPTime <= aMaxPTime ) |
|
726 { |
|
727 iMaxPTime = aMaxPTime; |
|
728 return KErrNone; |
|
729 } |
|
730 else |
|
731 { |
|
732 return KErrArgument; |
|
733 } |
|
734 } |
|
735 |
|
736 // ----------------------------------------------------------------------------- |
|
737 // CMccCodecAMR::CloneDefaultsL |
|
738 // Make a default setting clone from this AMR codec |
|
739 // ----------------------------------------------------------------------------- |
|
740 // |
|
741 CMccCodecInformation* CMccCodecAMR::CloneDefaultsL() |
|
742 { |
|
743 __INTERFACE( "CMccCodecAMR::CloneDefaultsL" ) |
|
744 return CMccCodecAMR::NewL(); |
|
745 } |
|
746 |
|
747 // ----------------------------------------------------------------------------- |
|
748 // CMccCodecAMR::CloneDetailedL |
|
749 // Make a detailed clone from this AMR codec |
|
750 // ----------------------------------------------------------------------------- |
|
751 // |
|
752 CMccCodecInformation* CMccCodecAMR::CloneDetailedL() |
|
753 { |
|
754 CMccCodecAMR* newCodec = CMccCodecAMR::NewL(); |
|
755 CleanupStack::PushL( newCodec ); |
|
756 newCodec->SetBitrate( this->Bitrate() ); |
|
757 newCodec->SetCodecMode( this->CodecMode() ); |
|
758 newCodec->SetMaxPTime( this->MaxPTime() ); |
|
759 newCodec->SetPayloadType( this->PayloadType() ); |
|
760 newCodec->SetPTime( this->PTime() ); |
|
761 newCodec->SetSamplingFreq( this->SamplingFreq() ); |
|
762 newCodec->SetSdpName( this->SdpName() ); |
|
763 newCodec->SetFmtpAttrL( this->GetFmtpL(), EFalse ); |
|
764 CleanupStack::Pop( newCodec ); |
|
765 return newCodec; |
|
766 } |
|
767 |
|
768 // ----------------------------------------------------------------------------- |
|
769 // CMccCodecAMR::RequireSignalling |
|
770 // ----------------------------------------------------------------------------- |
|
771 // |
|
772 TBool CMccCodecAMR::RequireSignalling( |
|
773 const CMccCodecInformation& aCandidate ) const |
|
774 { |
|
775 __INTERFACE( "CMccCodecAMR::RequireSignalling" ) |
|
776 TBool ret = EFalse; |
|
777 |
|
778 if ( iPTime != aCandidate.PTime() ) |
|
779 { |
|
780 __INTERFACE( "CMccCodecAMR::RequireSignalling, PTime changed" ) |
|
781 ret = ETrue; |
|
782 } |
|
783 |
|
784 if ( iMaxPTime != aCandidate.MaxPTime() ) |
|
785 { |
|
786 __INTERFACE( "CMccCodecAMR::RequireSignalling, MaxPTime changed" ) |
|
787 ret = ETrue; |
|
788 } |
|
789 |
|
790 if ( iPayloadType != aCandidate.PayloadType() ) |
|
791 { |
|
792 __INTERFACE( "CMccCodecAMR::RequireSignalling, PayloadType changed" ) |
|
793 ret = ETrue; |
|
794 } |
|
795 |
|
796 __INTERFACE_INT1( "CMccCodecAMR::RequireSignalling, bitrate mask 1", iBitrateMask ) |
|
797 __INTERFACE_INT1( "CMccCodecAMR::RequireSignalling, bitrate mask 2", aCandidate.AllowedBitrates() ) |
|
798 |
|
799 if ( iBitrateMask != aCandidate.AllowedBitrates() ) |
|
800 { |
|
801 if ( iBitrateMask != ( KMccAllowedModeChangeNeighbor1 | KMccAllowedAmrNbBitrateAll ) && |
|
802 iBitrateMask != KMccAllowedModeChangeNeighbor1 ) |
|
803 { |
|
804 __INTERFACE( "CMccCodecAMR::RequireSignalling, BitrateMask changed" ) |
|
805 ret = ETrue; |
|
806 } |
|
807 if ( aCandidate.AllowedBitrates() != ( KMccAllowedModeChangeNeighbor1 | |
|
808 KMccAllowedAmrNbBitrateAll ) && |
|
809 aCandidate.AllowedBitrates() != KMccAllowedModeChangeNeighbor1 ) |
|
810 { |
|
811 __INTERFACE( "CMccCodecAMR::RequireSignalling, BitrateMask changed" ) |
|
812 ret = ETrue; |
|
813 } |
|
814 } |
|
815 |
|
816 if ( iCodecMode != aCandidate.CodecMode() ) |
|
817 { |
|
818 __INTERFACE( "CMccCodecAMR::RequireSignalling, CodecMode changed" ) |
|
819 ret = ETrue; |
|
820 } |
|
821 |
|
822 __INTERFACE_INT1( "CMccCodecAMR::RequireSignalling, exit with", ret ) |
|
823 return ret; |
|
824 } |
|
825 |
|
826 // ----------------------------------------------------------------------------- |
|
827 // CMccCodecAMR::ParseFmtpAttrL |
|
828 // Parse the fmtp string, but doesn't update the iFmtpAttr |
|
829 // ----------------------------------------------------------------------------- |
|
830 // |
|
831 TBool CMccCodecAMR::ParseFmtpAttrL( const TDesC8& aFmtp ) |
|
832 { |
|
833 // These booleans needed in FMTP parsing to handle where parameters |
|
834 // not present in FMTP |
|
835 |
|
836 iModesExist = EFalse; |
|
837 iOctetAlignExist = EFalse; |
|
838 iModeChangePeriodExist = EFalse; |
|
839 iModeChangeNeighborExist = EFalse; |
|
840 iMaxRedExist = EFalse; |
|
841 |
|
842 //Remove all white space from begining and end, |
|
843 //Convert the content of the descriptor to lower case |
|
844 const TUint8* pointerC = aFmtp.Ptr(); |
|
845 TUint8* pointer = const_cast<TUint8*>( pointerC ); |
|
846 TPtr8 descriptor( pointer, aFmtp.Length(), aFmtp.Length() ); |
|
847 descriptor.Trim(); |
|
848 |
|
849 /* |
|
850 TDelimitedPathSegmentParser8 Parses path segments whose |
|
851 components are delimited by the ';' character, |
|
852 as defined in RFC2396. |
|
853 */ |
|
854 TDelimitedPathSegmentParser8 parser; |
|
855 parser.Parse( aFmtp ); |
|
856 TPtrC8 segment; |
|
857 TBool updated( EFalse ); |
|
858 |
|
859 while ( parser.GetNext( segment ) != KErrNotFound ) |
|
860 { |
|
861 if ( ParseFmtpSegmentL( segment ) ) |
|
862 { |
|
863 updated = ETrue; |
|
864 } |
|
865 } |
|
866 |
|
867 if ( !iModesExist ) |
|
868 { |
|
869 // Allow all modes |
|
870 SetBitrateMask( iDefaultBitrateMask, ETrue ); |
|
871 SetBitrate( iDefaultBitrate ); // max bitrate |
|
872 } |
|
873 |
|
874 if ( !iOctetAlignExist ) |
|
875 { |
|
876 SetCodecMode( EBandwidthEfficient ); |
|
877 } |
|
878 |
|
879 if ( !iModeChangePeriodExist ) |
|
880 { |
|
881 SetModeChangePeriod( KDefaultModeChangePeriod ); |
|
882 } |
|
883 |
|
884 if ( !iModeChangeNeighborExist ) |
|
885 { |
|
886 SetModeChangeNeighbor( EFalse ); |
|
887 } |
|
888 |
|
889 if ( !iMaxRedExist ) |
|
890 { |
|
891 SetMaxRed( KNotSet ); |
|
892 } |
|
893 |
|
894 return updated; |
|
895 } |
|
896 |
|
897 // ----------------------------------------------------------------------------- |
|
898 // CMccCodecAMR::ParseFmtpSegmentL |
|
899 // Parse and updates the matched param |
|
900 // ----------------------------------------------------------------------------- |
|
901 // |
|
902 TBool CMccCodecAMR::ParseFmtpSegmentL( const TDesC8& aSeg ) |
|
903 { |
|
904 TBool update( EFalse ); |
|
905 _LIT8( KEqualSign, "=" ); |
|
906 |
|
907 // Check for first '=' sign |
|
908 TInt index = aSeg.Find( KEqualSign ); |
|
909 |
|
910 if ( index > 0 ) |
|
911 { |
|
912 // Check if match mode-set |
|
913 if ( aSeg.Left( index ).Match( KMatchModeSet ) != KErrNotFound ) |
|
914 { |
|
915 update = ParseFmtpModeSetL( aSeg.Right( aSeg.Length() - ( index + 1 ) ) ); |
|
916 iModesExist = ETrue; |
|
917 } |
|
918 // Check if match octet-align |
|
919 else if ( aSeg.Left( index ).Match( KMatchOctetAlign ) != KErrNotFound ) |
|
920 { |
|
921 update = ParseFmtpOctetAlignL( aSeg.Right( aSeg.Length() - ( index + 1 ) ) ); |
|
922 iOctetAlignExist = ETrue; |
|
923 } |
|
924 |
|
925 // Check if match mode-change-period |
|
926 else if ( aSeg.Left( index ).Match( KMatchModeChangePeriod ) != KErrNotFound ) |
|
927 { |
|
928 update = ParseFmtpModeChangePeriodL( aSeg.Right( aSeg.Length() - ( index + 1 ) ) ); |
|
929 iModeChangePeriodExist = ETrue; |
|
930 } |
|
931 // Check if match mode-change-neighbor |
|
932 else if ( aSeg.Left( index ).Match( KMatchModeChangeNeighbor ) != KErrNotFound ) |
|
933 { |
|
934 update = ParseFmtpModeChangeNeighborL( aSeg.Right( aSeg.Length() - ( index + 1 ) ) ); |
|
935 iModeChangeNeighborExist = ETrue; |
|
936 } |
|
937 // Check if match crc |
|
938 else if ( aSeg.Left( index ).Match( KCrc ) != KErrNotFound ) |
|
939 { |
|
940 update = ParseFmtpCrcL( aSeg.Right( aSeg.Length() - ( index + 1 ) ) ); |
|
941 } |
|
942 // Check if match crc |
|
943 else if ( aSeg.Left( index ).Match( KRobustSorting ) != KErrNotFound ) |
|
944 { |
|
945 update = ParseFmtpRobustSortingL( aSeg.Right( aSeg.Length() - ( index + 1 ) ) ); |
|
946 } |
|
947 // Check if match interleaving |
|
948 else if ( aSeg.Left( index ).Match( KInterleaving ) != KErrNotFound ) |
|
949 { |
|
950 update = ParseFmtpInterleavingL( aSeg.Right( aSeg.Length() - ( index + 1 ) ) ); |
|
951 } |
|
952 else if ( aSeg.Left( index ).Match( KMaxRed ) != KErrNotFound ) |
|
953 { |
|
954 update = ParseFmtpMaxRedL( aSeg.Right( aSeg.Length() - ( index + 1 ) ) ); |
|
955 } |
|
956 else |
|
957 { |
|
958 // Make PC-LINT happy. |
|
959 } |
|
960 } |
|
961 |
|
962 return update; |
|
963 } |
|
964 |
|
965 // ----------------------------------------------------------------------------- |
|
966 // CMccCodecAMR::ParseFmtpModeSet |
|
967 // Parses and updates the bitrate |
|
968 // ----------------------------------------------------------------------------- |
|
969 // |
|
970 TBool CMccCodecAMR::ParseFmtpModeSetL( const TDesC8& aFmtpModeSet ) |
|
971 { |
|
972 /** |
|
973 * RFC 3267, page 39 |
|
974 * |
|
975 * mode-set: Requested AMR mode set. Restricts the active codec mode |
|
976 * set to a subset of all modes. Possible values are a comma separetad |
|
977 * list of modes from the set: 0,..,7. If such mode set is specified by |
|
978 * the decoder, the encoder MUST abide by the request and MUST NOT use |
|
979 * modes outside of the subset. If not present, all codec modes are |
|
980 * allowed for the session |
|
981 **/ |
|
982 |
|
983 TInt err( KErrNone ); |
|
984 TInt error( KErrNone ); |
|
985 |
|
986 HBufC8* hBuf = HBufC8::NewLC( aFmtpModeSet.Length() ); |
|
987 |
|
988 hBuf->Des().Copy( aFmtpModeSet ); |
|
989 TPtr8 ptr( hBuf->Des() ); |
|
990 |
|
991 // Convert descriptor to integer using TLex8 |
|
992 TLex8 lex; |
|
993 TInt index( KErrNone ); |
|
994 TInt maxValue( 0 ); |
|
995 TInt currentValue( 0 ); |
|
996 |
|
997 TUint bitrateMaskCurrent( 0 ); |
|
998 TUint bitrateMaskUpdated( 0 ); |
|
999 |
|
1000 TBool more( ETrue ); |
|
1001 |
|
1002 while ( more ) |
|
1003 { |
|
1004 ptr.TrimAll(); |
|
1005 |
|
1006 // Find comma sign |
|
1007 index = ptr.Find( KCommaSign ); |
|
1008 |
|
1009 if ( index == KErrNotFound ) |
|
1010 { |
|
1011 // No commas found, this must be the last value |
|
1012 lex.Assign( ptr ); |
|
1013 err = lex.Val( currentValue ); |
|
1014 more = EFalse; |
|
1015 } |
|
1016 else |
|
1017 { |
|
1018 // Read what is to the left of the comma |
|
1019 lex.Assign( ptr.Left( index ) ); |
|
1020 err = lex.Val( currentValue ); |
|
1021 |
|
1022 // Delete the processed characters and the comma |
|
1023 ptr.Delete( 0, ( index + 1 ) ); |
|
1024 } |
|
1025 |
|
1026 // Get the value if conversion succeeded |
|
1027 if ( err == KErrNone ) |
|
1028 { |
|
1029 error = GetBitrateMaskFromMode( currentValue, bitrateMaskCurrent ); |
|
1030 |
|
1031 //Update bitrateMask |
|
1032 if( error == KErrNone ) |
|
1033 { |
|
1034 bitrateMaskUpdated |= bitrateMaskCurrent; |
|
1035 } |
|
1036 //if mode not supported, then leave |
|
1037 else |
|
1038 { |
|
1039 User::Leave( KErrArgument ); |
|
1040 } |
|
1041 |
|
1042 //Update max mode-set value |
|
1043 if ( currentValue > maxValue ) |
|
1044 { |
|
1045 maxValue = currentValue; |
|
1046 } |
|
1047 } |
|
1048 |
|
1049 // This is for the case when the last character is a comma, |
|
1050 // e.g. "mode-set=0," |
|
1051 if ( ptr.Length() == 0 ) |
|
1052 { |
|
1053 more = EFalse; |
|
1054 } |
|
1055 } |
|
1056 |
|
1057 User::LeaveIfError( err ); |
|
1058 |
|
1059 // Delete the copy |
|
1060 if( hBuf ) |
|
1061 { |
|
1062 CleanupStack::PopAndDestroy( hBuf ); |
|
1063 hBuf = NULL; |
|
1064 } |
|
1065 |
|
1066 // Set bitrate to the maximum value found in the string |
|
1067 SetBitrateModeSet( maxValue ); |
|
1068 |
|
1069 //Update the bitrateMask |
|
1070 SetBitrateMask( bitrateMaskUpdated, ETrue ); |
|
1071 |
|
1072 return ETrue; |
|
1073 } |
|
1074 |
|
1075 // ----------------------------------------------------------------------------- |
|
1076 // CMccCodecAMR::ParseFmtpOctetAlign |
|
1077 // Updates the CodecMode to either EOctetAligned/EBandwidthEfficient |
|
1078 // ----------------------------------------------------------------------------- |
|
1079 // |
|
1080 TBool CMccCodecAMR::ParseFmtpOctetAlignL( const TDesC8& aFmtpOctetAlign ) |
|
1081 { |
|
1082 /** |
|
1083 * RFC 3267, page 39 |
|
1084 * |
|
1085 * octet-align: Permissible values are 0 and 1. If 1, octet-aligned operation |
|
1086 * SHALL be used. If 0 or if not present, bandwidth efficient operation is |
|
1087 * employed |
|
1088 */ |
|
1089 |
|
1090 TBool update( ETrue ); |
|
1091 |
|
1092 // Convert descriptor to integer |
|
1093 TLex8 myLex( aFmtpOctetAlign ); |
|
1094 TInt octetAlign; |
|
1095 User::LeaveIfError( myLex.Val( octetAlign ) ); |
|
1096 |
|
1097 switch ( octetAlign ) |
|
1098 { |
|
1099 case 0: |
|
1100 SetCodecMode( EBandwidthEfficient ); |
|
1101 break; |
|
1102 |
|
1103 case 1: |
|
1104 SetCodecMode( EOctetAligned ); |
|
1105 break; |
|
1106 |
|
1107 default: |
|
1108 update = EFalse; |
|
1109 break; |
|
1110 } // switch |
|
1111 |
|
1112 return update; |
|
1113 } |
|
1114 |
|
1115 // ----------------------------------------------------------------------------- |
|
1116 // CMccCodecAMR::ParseFmtpModeChangePeriodL |
|
1117 // ----------------------------------------------------------------------------- |
|
1118 // |
|
1119 TBool CMccCodecAMR::ParseFmtpModeChangePeriodL( const TDesC8& aFmtpModeChangePeriod ) |
|
1120 { |
|
1121 /** |
|
1122 * RFC 3267, page 39-40 |
|
1123 * |
|
1124 * Specifies a number of frame-blocks, N, that is |
|
1125 * the interval at which codec mode changes are allowed. |
|
1126 * The initial phase of the interval is arbitrary, but |
|
1127 * changes must be separated by multiples of N frame-blocks. |
|
1128 * If this parameter is not present, mode changes are |
|
1129 * allowed at any time during the session. |
|
1130 */ |
|
1131 |
|
1132 // Convert descriptor to integer |
|
1133 TLex8 myLex( aFmtpModeChangePeriod ); |
|
1134 TInt modeChangePeriod; |
|
1135 User::LeaveIfError( myLex.Val( modeChangePeriod ) ); |
|
1136 |
|
1137 User::LeaveIfError( this->SetModeChangePeriod( modeChangePeriod ) ); |
|
1138 |
|
1139 return ETrue; |
|
1140 } |
|
1141 |
|
1142 // ----------------------------------------------------------------------------- |
|
1143 // CMccCodecAMR::ParseFmtpModeChangeNeighborL |
|
1144 // ----------------------------------------------------------------------------- |
|
1145 // |
|
1146 TBool CMccCodecAMR::ParseFmtpModeChangeNeighborL( const TDesC8& aFmtpModeChangeNeighbor ) |
|
1147 { |
|
1148 // Convert descriptor to integer |
|
1149 TLex8 myLex( aFmtpModeChangeNeighbor ); |
|
1150 TInt modeChangeNeighbor; |
|
1151 User::LeaveIfError( myLex.Val( modeChangeNeighbor ) ); |
|
1152 |
|
1153 User::LeaveIfError( this->SetModeChangeNeighbor( modeChangeNeighbor ) ); |
|
1154 |
|
1155 return ETrue; |
|
1156 } |
|
1157 |
|
1158 // ----------------------------------------------------------------------------- |
|
1159 // CMccCodecAMR::ParseFmtpCrcL |
|
1160 // ----------------------------------------------------------------------------- |
|
1161 // |
|
1162 TBool CMccCodecAMR::ParseFmtpCrcL( const TDesC8& aFmtpCrc ) |
|
1163 { |
|
1164 // Convert descriptor to integer |
|
1165 TLex8 myLex( aFmtpCrc ); |
|
1166 TInt crc; |
|
1167 User::LeaveIfError( myLex.Val( crc ) ); |
|
1168 |
|
1169 User::LeaveIfError( this->SetCrc( crc ) ); |
|
1170 |
|
1171 return ETrue; |
|
1172 } |
|
1173 |
|
1174 // ----------------------------------------------------------------------------- |
|
1175 // CMccCodecAMR::ParseFmtpRobustSortingL |
|
1176 // ----------------------------------------------------------------------------- |
|
1177 // |
|
1178 TBool CMccCodecAMR::ParseFmtpRobustSortingL( const TDesC8& aFmtpRobustSorting ) |
|
1179 { |
|
1180 // Convert descriptor to integer |
|
1181 TLex8 myLex( aFmtpRobustSorting ); |
|
1182 TInt robustSorting; |
|
1183 User::LeaveIfError( myLex.Val( robustSorting ) ); |
|
1184 |
|
1185 User::LeaveIfError( this->SetRobustSorting( robustSorting ) ); |
|
1186 |
|
1187 return ETrue; |
|
1188 } |
|
1189 |
|
1190 // ----------------------------------------------------------------------------- |
|
1191 // CMccCodecAMR::ParseFmtpInterleaving |
|
1192 // ----------------------------------------------------------------------------- |
|
1193 // |
|
1194 TBool CMccCodecAMR::ParseFmtpInterleavingL( const TDesC8& aFmtpInterleaving ) |
|
1195 { |
|
1196 // Convert descriptor to integer |
|
1197 TLex8 myLex( aFmtpInterleaving ); |
|
1198 TInt interleaving; |
|
1199 User::LeaveIfError( myLex.Val( interleaving ) ); |
|
1200 |
|
1201 User::LeaveIfError( this->SetInterleaving( interleaving ) ); |
|
1202 |
|
1203 return ETrue; |
|
1204 } |
|
1205 |
|
1206 // ----------------------------------------------------------------------------- |
|
1207 // CMccCodecAMR::ParseFmtpMaxRedL |
|
1208 // ----------------------------------------------------------------------------- |
|
1209 // |
|
1210 TBool CMccCodecAMR::ParseFmtpMaxRedL( const TDesC8& aFmtpMaxRed ) |
|
1211 { |
|
1212 // Convert descriptor to integer |
|
1213 TLex8 myLex( aFmtpMaxRed ); |
|
1214 TInt maxRed; |
|
1215 User::LeaveIfError( myLex.Val( maxRed ) ); |
|
1216 User::LeaveIfError( this->SetMaxRed( maxRed ) ); |
|
1217 |
|
1218 return ETrue; |
|
1219 } |
|
1220 |
|
1221 // ----------------------------------------------------------------------------- |
|
1222 // CMccCodecAMR::CreateFmtpOctetAlign |
|
1223 // Creates the octet-alignment value of the FMTP according to the codec |
|
1224 // ----------------------------------------------------------------------------- |
|
1225 // |
|
1226 TBool CMccCodecAMR::CreateFmtpOctetAlign( TDes8& aBuf ) |
|
1227 { |
|
1228 TBool octetAlignAdded( EFalse ); |
|
1229 // Append only if octet-aligned is EOctetAligned |
|
1230 if( CodecMode() == EOctetAligned ) |
|
1231 { |
|
1232 TInt octetAlignValue( 1 ); |
|
1233 // Append it to the buffer |
|
1234 _LIT8( KFmtpOctetAlign, "octet-align=%d" ); |
|
1235 aBuf.AppendFormat( KFmtpOctetAlign, octetAlignValue ); |
|
1236 octetAlignAdded = ETrue; |
|
1237 } |
|
1238 return octetAlignAdded; |
|
1239 } |
|
1240 |
|
1241 // ----------------------------------------------------------------------------- |
|
1242 // CMccCodecAMR::CreateFmtpModeChangePeriod |
|
1243 // Creates the mode-change-period value of the FMTP according to the codec |
|
1244 // ----------------------------------------------------------------------------- |
|
1245 // |
|
1246 TBool CMccCodecAMR::CreateFmtpModeChangePeriod( TDes8& aBuf ) |
|
1247 { |
|
1248 TBool modeChangePeriodAdded( EFalse ); |
|
1249 // No need to add to fmtp if mode-change-period=1 (default) |
|
1250 if ( iModeChangePeriod == KNumValue2 ) |
|
1251 { |
|
1252 // Append it to the buffer |
|
1253 _LIT8( KFmtpModeChangePeriod, "mode-change-period=%d" ); |
|
1254 aBuf.AppendFormat( KFmtpModeChangePeriod, iModeChangePeriod ); |
|
1255 modeChangePeriodAdded = ETrue; |
|
1256 } |
|
1257 |
|
1258 return modeChangePeriodAdded; |
|
1259 } |
|
1260 |
|
1261 // ----------------------------------------------------------------------------- |
|
1262 // CMccCodecAMR::CreateFmtpModeChangeNeighbor |
|
1263 // Creates the mode-change-neighbor value of the FMTP according to the codec |
|
1264 // ----------------------------------------------------------------------------- |
|
1265 // |
|
1266 TBool CMccCodecAMR::CreateFmtpModeChangeNeighbor( TDes8& aBuf ) |
|
1267 { |
|
1268 TBool modeChangeNeighborAdded( EFalse ); |
|
1269 // Append only if mode-change-neighbor is ETrue |
|
1270 if ( iNeighbor ) |
|
1271 { |
|
1272 // Append it to the buffer |
|
1273 _LIT8( KFmtpModeChangeNeighbor, "mode-change-neighbor=%d" ); |
|
1274 aBuf.AppendFormat( KFmtpModeChangeNeighbor, iNeighbor ); |
|
1275 modeChangeNeighborAdded = ETrue; |
|
1276 |
|
1277 } |
|
1278 |
|
1279 return modeChangeNeighborAdded; |
|
1280 } |
|
1281 |
|
1282 // ----------------------------------------------------------------------------- |
|
1283 // CMccCodecAMR::CreateFmtpMaxRed |
|
1284 // ----------------------------------------------------------------------------- |
|
1285 // |
|
1286 TBool CMccCodecAMR::CreateFmtpMaxRed( TDes8& aBuf ) |
|
1287 { |
|
1288 TBool maxRedAdded( EFalse ); |
|
1289 |
|
1290 if ( KNotSet < iMaxRed && EAmrFecUsed == iAlgoUsed ) |
|
1291 { |
|
1292 // Append it to the buffer |
|
1293 _LIT8( KFmtpMaxRed, "max-red=%d" ); |
|
1294 aBuf.AppendFormat( KFmtpMaxRed, iMaxRed ); |
|
1295 maxRedAdded = ETrue; |
|
1296 } |
|
1297 |
|
1298 return maxRedAdded; |
|
1299 } |
|
1300 |
|
1301 // ----------------------------------------------------------------------------- |
|
1302 // CMccCodecAMR::CreateFmtpAttrListL |
|
1303 // If fmtp does not exist, then create it |
|
1304 // ----------------------------------------------------------------------------- |
|
1305 // |
|
1306 void CMccCodecAMR::CreateFmtpAttrListL() |
|
1307 { |
|
1308 RArray<TUint> array; |
|
1309 CleanupClosePushL( array ); |
|
1310 |
|
1311 this->GetAllowedBitratesArrayL( array ); |
|
1312 |
|
1313 this->CreateFmtpAttrListL( array ); |
|
1314 |
|
1315 CleanupStack::Pop( &array ); |
|
1316 array.Close(); |
|
1317 } |
|
1318 |
|
1319 // ----------------------------------------------------------------------------- |
|
1320 // CMccCodecAMR::CreateFmtpAttrListL |
|
1321 // If fmtp does not exist, then create it |
|
1322 // ----------------------------------------------------------------------------- |
|
1323 // |
|
1324 void CMccCodecAMR::CreateFmtpAttrListL( const RArray<TUint>& aBitrates ) |
|
1325 { |
|
1326 // Create the fmtp string: octet-align=0/1; mode-set=[0][,1][,2]...[,7] |
|
1327 // mode-change-period=1/2; mode-change-neighbor=0/1 |
|
1328 HBufC8* buf = HBufC8::NewLC( KMaxFmtpLen ); |
|
1329 TPtr8 bufPtr = buf->Des(); |
|
1330 |
|
1331 TBool previousParamAdded( EFalse ); |
|
1332 |
|
1333 if ( CreateFmtpOctetAlign( bufPtr ) ) |
|
1334 { |
|
1335 previousParamAdded = ETrue; |
|
1336 } |
|
1337 |
|
1338 TInt semicolonPos( bufPtr.Length() ); |
|
1339 |
|
1340 if ( CreateFmtpModeSet( bufPtr, aBitrates ) ) |
|
1341 { |
|
1342 // Previous param was added, so we need a semi-colon and a space |
|
1343 if ( previousParamAdded ) |
|
1344 { |
|
1345 bufPtr.Insert( semicolonPos, KSemicolonSpace ); |
|
1346 } |
|
1347 previousParamAdded = ETrue; |
|
1348 } |
|
1349 |
|
1350 semicolonPos = bufPtr.Length(); |
|
1351 |
|
1352 if ( CreateFmtpModeChangePeriod( bufPtr ) ) |
|
1353 { |
|
1354 // Previous param was added, so we need a semi-colon and a space |
|
1355 if ( previousParamAdded ) |
|
1356 { |
|
1357 bufPtr.Insert( semicolonPos, KSemicolonSpace ); |
|
1358 } |
|
1359 previousParamAdded = ETrue; |
|
1360 } |
|
1361 |
|
1362 semicolonPos = bufPtr.Length(); |
|
1363 |
|
1364 if ( CreateFmtpModeChangeNeighbor( bufPtr ) ) |
|
1365 { |
|
1366 // Previous param was added, so we need a semi-colon and a space |
|
1367 if ( previousParamAdded ) |
|
1368 { |
|
1369 bufPtr.Insert( semicolonPos, KSemicolonSpace ); |
|
1370 } |
|
1371 previousParamAdded = ETrue; |
|
1372 } |
|
1373 |
|
1374 semicolonPos = bufPtr.Length(); |
|
1375 |
|
1376 if ( CreateFmtpMaxRed( bufPtr ) ) |
|
1377 { |
|
1378 // Previous param was added, so we need a semi-colon and a space |
|
1379 if ( previousParamAdded ) |
|
1380 { |
|
1381 bufPtr.Insert( semicolonPos, KSemicolonSpace ); |
|
1382 } |
|
1383 //previousParamAdded = ETrue; not necessery if no more attributes |
|
1384 } |
|
1385 |
|
1386 // Remove extra space from the end |
|
1387 bufPtr.TrimRight(); |
|
1388 |
|
1389 // Update iFmtpAttr |
|
1390 SetFmtpAttrL( bufPtr, EFalse ); |
|
1391 |
|
1392 CleanupStack::PopAndDestroy( buf ); |
|
1393 |
|
1394 __INTERFACE_STR8( "CMccCodecAMR::CreateFmtpAttrListL, *iFmtpAttr", *iFmtpAttr ) |
|
1395 } |
|
1396 |
|
1397 // ----------------------------------------------------------------------------- |
|
1398 // CMccCodecAMR::SetModeChangePeriod |
|
1399 // Set mode change period |
|
1400 // ----------------------------------------------------------------------------- |
|
1401 // |
|
1402 TInt CMccCodecAMR::SetModeChangePeriod( const TInt aPeriod ) |
|
1403 { |
|
1404 // valid value 1 or 2 |
|
1405 if( KNumValue1 > aPeriod || KNumValue2 < aPeriod ) |
|
1406 { |
|
1407 return KErrArgument; |
|
1408 } |
|
1409 |
|
1410 iModeChangePeriod = aPeriod; |
|
1411 |
|
1412 SetBitrateMaskAdditionalInfo( |
|
1413 ( iModeChangePeriod == KNumValue2 ) ? KMccAllowedModeChangePeriod2 : 0 ); |
|
1414 |
|
1415 return KErrNone; |
|
1416 } |
|
1417 |
|
1418 // ----------------------------------------------------------------------------- |
|
1419 // CMccCodecAMR::ModeChangePeriod |
|
1420 // Get mode change period |
|
1421 // ----------------------------------------------------------------------------- |
|
1422 // |
|
1423 TInt CMccCodecAMR::ModeChangePeriod( ) const |
|
1424 { |
|
1425 return iModeChangePeriod; |
|
1426 } |
|
1427 |
|
1428 // ----------------------------------------------------------------------------- |
|
1429 // CMccCodecAMR::SetModeChangeNeighbor |
|
1430 // Set mode change neighbor |
|
1431 // ----------------------------------------------------------------------------- |
|
1432 // |
|
1433 TInt CMccCodecAMR::SetModeChangeNeighbor( const TBool aNeighbor ) |
|
1434 { |
|
1435 // Default value is ETrue |
|
1436 iNeighbor = aNeighbor; |
|
1437 |
|
1438 SetBitrateMaskAdditionalInfo( |
|
1439 iNeighbor ? KMccAllowedModeChangeNeighbor1 : 0 ); |
|
1440 |
|
1441 return KErrNone; |
|
1442 } |
|
1443 |
|
1444 // ----------------------------------------------------------------------------- |
|
1445 // CMccCodecAMR::ModeChangeNeighbor |
|
1446 // Get mode change neighbor |
|
1447 // ----------------------------------------------------------------------------- |
|
1448 // |
|
1449 TBool CMccCodecAMR::ModeChangeNeighbor( ) const |
|
1450 { |
|
1451 return iNeighbor; |
|
1452 } |
|
1453 |
|
1454 // ----------------------------------------------------------------------------- |
|
1455 // CMccCodecAMR::SetCrc |
|
1456 // Set boolean type CRC value |
|
1457 // ----------------------------------------------------------------------------- |
|
1458 // |
|
1459 TInt CMccCodecAMR::SetCrc( const TBool aCrc ) |
|
1460 { |
|
1461 return ( aCrc ? KErrNotSupported : KErrNone ); |
|
1462 } |
|
1463 |
|
1464 // ----------------------------------------------------------------------------- |
|
1465 // CMccCodecAMR::GetCrc |
|
1466 // Get boolean type CRC value |
|
1467 // ----------------------------------------------------------------------------- |
|
1468 // |
|
1469 TBool CMccCodecAMR::GetCrc( ) const |
|
1470 { |
|
1471 return iCrc; |
|
1472 } |
|
1473 |
|
1474 // ----------------------------------------------------------------------------- |
|
1475 // CMccCodecAMR::SetRobustSorting |
|
1476 // Default implementation |
|
1477 // ----------------------------------------------------------------------------- |
|
1478 // |
|
1479 TInt CMccCodecAMR::SetRobustSorting( const TBool aRobust ) |
|
1480 { |
|
1481 return ( aRobust ? KErrNotSupported : KErrNone ); |
|
1482 } |
|
1483 |
|
1484 // ----------------------------------------------------------------------------- |
|
1485 // CMccCodecAMR::GetRobustSorting |
|
1486 // Default implementation |
|
1487 // ----------------------------------------------------------------------------- |
|
1488 // |
|
1489 TBool CMccCodecAMR::GetRobustSorting( ) const |
|
1490 { |
|
1491 return iRobust; |
|
1492 } |
|
1493 |
|
1494 // ----------------------------------------------------------------------------- |
|
1495 // CMccCodecAMR::SetInterleaving |
|
1496 // Default implementation |
|
1497 // ----------------------------------------------------------------------------- |
|
1498 // |
|
1499 TInt CMccCodecAMR::SetInterleaving( const TInt /*aFrameBlockCount*/ ) |
|
1500 { |
|
1501 return KErrNotSupported; |
|
1502 } |
|
1503 |
|
1504 // ----------------------------------------------------------------------------- |
|
1505 // CMccCodecAMR:GetInterleaving |
|
1506 // Default implementation |
|
1507 // ----------------------------------------------------------------------------- |
|
1508 // |
|
1509 TInt CMccCodecAMR::GetInterleaving( ) const |
|
1510 { |
|
1511 return iFrameBlockCount; |
|
1512 } |
|
1513 |
|
1514 // ----------------------------------------------------------------------------- |
|
1515 // CMCPAMRCodec::SetChannels |
|
1516 // ----------------------------------------------------------------------------- |
|
1517 // |
|
1518 TInt CMccCodecAMR::SetChannels( TInt aNumOfChannels ) |
|
1519 { |
|
1520 if ( aNumOfChannels != 1 ) |
|
1521 { |
|
1522 return KErrNotSupported; |
|
1523 } |
|
1524 |
|
1525 iNumOfChannels = aNumOfChannels; |
|
1526 |
|
1527 return KErrNone; |
|
1528 } |
|
1529 |
|
1530 // ----------------------------------------------------------------------------- |
|
1531 // CMCPAMRCodec:GetChannels |
|
1532 // ----------------------------------------------------------------------------- |
|
1533 // |
|
1534 TInt CMccCodecAMR::GetChannels( TInt& aNumOfChannels ) const |
|
1535 { |
|
1536 aNumOfChannels = iNumOfChannels; |
|
1537 return KErrNone; |
|
1538 } |
|
1539 |
|
1540 // ----------------------------------------------------------------------------- |
|
1541 // CMccCodecAMR:SetMaxRed |
|
1542 // ----------------------------------------------------------------------------- |
|
1543 // |
|
1544 TInt CMccCodecAMR::SetMaxRed( TInt aMaxRed ) |
|
1545 { |
|
1546 if ( ( KNotSet > aMaxRed ) || |
|
1547 ( aMaxRed % TInt( KDefaultPtime ) ) != 0 ) |
|
1548 { |
|
1549 return KErrArgument; |
|
1550 } |
|
1551 |
|
1552 iMaxRed = aMaxRed; |
|
1553 return KErrNone; |
|
1554 } |
|
1555 |
|
1556 // ----------------------------------------------------------------------------- |
|
1557 // CMccCodecAMR:SetBitrateMask |
|
1558 // ----------------------------------------------------------------------------- |
|
1559 // |
|
1560 void CMccCodecAMR::SetBitrateMask( TUint aBitrateMask, TBool aKeepAdditionalInfo ) |
|
1561 { |
|
1562 __INTERFACE_INT1( "CMccCodecAMR::SetBitrateMask, entry mask ", aBitrateMask ) |
|
1563 TUint oldBitrateMask = iBitrateMask; |
|
1564 iBitrateMask = aBitrateMask; |
|
1565 |
|
1566 if ( aKeepAdditionalInfo ) |
|
1567 { |
|
1568 iBitrateMask |= ( oldBitrateMask & iAdditionalInfoMask ); |
|
1569 } |
|
1570 else |
|
1571 { |
|
1572 SetBitrateMaskAdditionalInfo( aBitrateMask ); |
|
1573 } |
|
1574 |
|
1575 __INTERFACE_INT1( "CMccCodecAMR::SetBitrateMask, exit mask ", iBitrateMask ) |
|
1576 } |
|
1577 |
|
1578 // ----------------------------------------------------------------------------- |
|
1579 // CMccCodecAMR:SetBitrateMaskAdditionalInfo |
|
1580 // ----------------------------------------------------------------------------- |
|
1581 // |
|
1582 void CMccCodecAMR::SetBitrateMaskAdditionalInfo( TUint aAdditionalInfo ) |
|
1583 { |
|
1584 iBitrateMask |= ( aAdditionalInfo & iAdditionalInfoMask ); |
|
1585 } |
|
1586 |
|
1587 // ========================== OTHER EXPORTED FUNCTIONS ========================= |
|
1588 |
|
1589 // End of File |