1 /* |
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2 * Copyright (c) 2007 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 the License "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: Implementation of the Common Recording Engine RTP read class.* |
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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 // INCLUDE FILES |
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21 #include <ipvideo/CRtpMetaHeader.h> |
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22 #include <bsp.h> |
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23 #include <etelmm.h> |
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24 #include "videoserviceutilsLogger.h" |
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25 |
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26 // CONSTANTS |
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27 // None |
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28 |
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29 // ============================ MEMBER FUNCTIONS =============================== |
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30 |
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31 // ----------------------------------------------------------------------------- |
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32 // CRtpMetaHeader::NewL |
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33 // Static two-phased constructor. Leaves object to cleanup stack. |
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34 // ----------------------------------------------------------------------------- |
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35 // |
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36 CRtpMetaHeader* CRtpMetaHeader::NewL( RFile& aFile, const TMetaMode& aMode ) |
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37 { |
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38 CRtpMetaHeader* self = CRtpMetaHeader::NewLC( aFile, aMode ); |
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39 CleanupStack::Pop( self ); |
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40 return self; |
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41 } |
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42 |
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43 // ----------------------------------------------------------------------------- |
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44 // CRtpMetaHeader::NewLC |
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45 // Static two-phased constructor. Leaves object to cleanup stack. |
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46 // ----------------------------------------------------------------------------- |
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47 // |
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48 CRtpMetaHeader* CRtpMetaHeader::NewLC( RFile& aFile, const TMetaMode& aMode ) |
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49 { |
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50 CRtpMetaHeader* self = new( ELeave ) CRtpMetaHeader( aFile, aMode ); |
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51 CleanupStack::PushL( self ); |
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52 self->ConstructL(); |
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53 return self; |
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54 } |
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55 |
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56 // ----------------------------------------------------------------------------- |
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57 // CRtpMetaHeader::CRtpMetaHeader |
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58 // C++ default constructor can NOT contain any code, that might leave. |
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59 // ----------------------------------------------------------------------------- |
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60 // |
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61 CRtpMetaHeader::CRtpMetaHeader( RFile& aFile, const TMetaMode& aMode ) |
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62 : iFile( aFile ), |
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63 iMode( aMode ), |
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64 iMetaData( NULL ), |
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65 iDataPtr( 0, 0 ), |
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66 iEsgDataPoint( KErrNotFound ), |
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67 iSrtpDataPoint( KErrNotFound ), |
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68 iSdpDataPoint( KErrNotFound ), |
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69 iMetaTotal( KErrNotFound ) |
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70 { |
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71 // None |
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72 } |
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73 |
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74 // ----------------------------------------------------------------------------- |
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75 // CRtpMetaHeader::ConstructL |
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76 // Symbian 2nd phase constructor can leave. |
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77 // ----------------------------------------------------------------------------- |
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78 // |
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79 void CRtpMetaHeader::ConstructL() |
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80 { |
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81 LOG( "CRtpMetaHeader::ConstructL()" ); |
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82 |
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83 // Mode |
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84 if ( iMode == EMetaRead || iMode == EMetaUpdate ) |
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85 { |
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86 // Read whole meta area |
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87 ReadTintFromFileL( KMetaLengthPoint, iMetaTotal ); |
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88 |
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89 // Meta header has reasonable length? |
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90 if ( iMetaTotal > KMaxMetaHeaderLength || iMetaTotal <= 0 ) |
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91 { |
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92 LOG( "CRtpMetaHeader::ConstructL(), Meta Total Corrupted" ); |
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93 User::Leave( KErrCorrupt ); |
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94 } |
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95 |
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96 // Room for header |
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97 iMetaData = HBufC8::NewL( iMetaTotal ); |
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98 iDataPtr.Set( iMetaData->Des() ); |
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99 User::LeaveIfError( iFile.Read( KMetaLengthPoint, iDataPtr, iMetaTotal ) ); |
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100 |
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101 // All data exist in meta header? |
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102 if ( iDataPtr.Length() < iMetaTotal ) |
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103 { |
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104 LOG( "CRtpMetaHeader::ConstructL(), Meta Header Corrupted" ); |
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105 User::Leave( KErrCorrupt ); |
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106 } |
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107 |
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108 // ESG data point ( device info point + device info data ) |
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109 iEsgDataPoint = KDeviceInfoPoint + KStringLengthBytes + |
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110 iDataPtr[KDeviceInfoPoint]; |
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111 |
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112 // SRTP data point ( ESG data point + Service name + Program name ) |
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113 TInt snp( iEsgDataPoint + KStringLengthBytes + iDataPtr[iEsgDataPoint] ); |
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114 iSrtpDataPoint = snp + KStringLengthBytes + iDataPtr[snp]; |
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115 |
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116 // SDD file point ( SRTP data point + SRTP data ) |
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117 const TInt srtplen( CRtpUtil::GetValueL( |
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118 iDataPtr.Mid( iSrtpDataPoint, KIntegerBytes ) ) ); |
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119 User::LeaveIfError( srtplen ); |
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120 iSdpDataPoint = iSrtpDataPoint + KIntegerBytes + srtplen; |
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121 } |
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122 else // Write |
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123 { |
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124 iMetaData = HBufC8::NewL( 0 ); |
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125 // Room for meta length |
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126 iMetaTotal = KMetaLengthPoint; |
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127 AddIntegerL( KMetaLengthPoint, KErrNotFound ); |
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128 } |
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129 } |
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130 |
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131 // ----------------------------------------------------------------------------- |
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132 // Destructor |
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133 // |
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134 CRtpMetaHeader::~CRtpMetaHeader() |
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135 // ----------------------------------------------------------------------------- |
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136 { |
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137 LOG( "CRtpMetaHeader::~CRtpMetaHeader()" ); |
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138 |
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139 delete iMetaData; |
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140 } |
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141 |
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142 // ----------------------------------------------------------------------------- |
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143 // CRtpMetaHeader::SeekHeaderPoint |
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144 // Getter for seek header point. |
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145 // Returns: Point to seek header |
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146 // ----------------------------------------------------------------------------- |
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147 // |
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148 TInt CRtpMetaHeader::SeekHeaderPoint() |
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149 { |
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150 return iMetaTotal; |
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151 } |
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152 |
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153 // ----------------------------------------------------------------------------- |
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154 // CRtpMetaHeader::CommitL |
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155 // Writes meta header to the clip. |
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156 // ----------------------------------------------------------------------------- |
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157 // |
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158 void CRtpMetaHeader::CommitL() |
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159 { |
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160 LOG( "CRtpMetaHeader::CommitL() in" ); |
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161 |
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162 User::LeaveIfError( iMetaTotal ); |
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163 User::LeaveIfError( ( iMetaTotal > KMaxMetaHeaderLength ) * KErrCorrupt ); |
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164 |
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165 if ( iMode == EMetaWrite ) |
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166 { |
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167 User::LeaveIfError( iEsgDataPoint ); |
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168 User::LeaveIfError( iSrtpDataPoint ); |
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169 User::LeaveIfError( iSdpDataPoint ); |
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170 |
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171 // Meta length |
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172 iDataPtr.Delete( KMetaLengthPoint, KIntegerBytes ); |
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173 AddIntegerL( KMetaLengthPoint, iMetaTotal ); |
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174 |
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175 User::LeaveIfError( iFile.Write( iDataPtr, iMetaTotal ) ); |
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176 } |
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177 |
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178 LOG( "CRtpMetaHeader::CommitL() out" ); |
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179 } |
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180 |
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181 // ----------------------------------------------------------------------------- |
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182 // CRtpMetaHeader::WriteAttributesL |
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183 // Writes atributes to meta data header of the clip. |
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184 // ----------------------------------------------------------------------------- |
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185 // |
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186 void CRtpMetaHeader::WriteAttributesL( const SAttributes& aAtt ) |
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187 { |
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188 TInt data( 0 ); |
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189 data|= aAtt.iOngoing << KOngoingFlagShift; |
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190 data|= aAtt.iCompleted << KCompletedFlagShift; |
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191 data|= aAtt.iProtected << KProtectedFlagShift; |
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192 data|= aAtt.iFailed << KFailedFlagShift; |
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193 data|= aAtt.iVersion << KVersionFieldShift; |
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194 data|= aAtt.iQuality << KQualityFieldShift; |
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195 data|= aAtt.iPostRule << KPostRuleFieldShift; |
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196 data|= aAtt.iParental << KParentalFieldShift; |
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197 |
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198 AddIntegerL( KAttributesPoint, data ); |
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199 AddIntegerL( KPlayCountPoint, aAtt.iPlayCount ); |
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200 AddIntegerL( KPlaySpotPoint, aAtt.iPlaySpot ); |
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201 |
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202 // Reserved room for 4 integers |
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203 AddIntegerL( KReservedPoint1, 0 ); |
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204 AddIntegerL( KReservedPoint2, 0 ); |
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205 AddIntegerL( KReservedPoint3, 0 ); |
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206 AddIntegerL( KReservedPoint4, 0 ); |
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207 } |
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208 |
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209 // ----------------------------------------------------------------------------- |
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210 // CRtpMetaHeader::WriteStartTimeL |
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211 // Writes start date/time info to meta header of the clip. |
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212 // ----------------------------------------------------------------------------- |
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213 // |
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214 void CRtpMetaHeader::WriteStartTimeL( const TTime& aTime ) |
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215 { |
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216 AddTimeL( KStartTimePoint, aTime ); |
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217 } |
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218 |
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219 // ----------------------------------------------------------------------------- |
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220 // CRtpMetaHeader::WriteEndTimeL |
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221 // Writes end date/time info to meta header of the clip. |
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222 // ----------------------------------------------------------------------------- |
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223 // |
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224 void CRtpMetaHeader::WriteEndTimeL( const TTime& aTime ) |
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225 { |
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226 AddTimeL( KEndTimePoint, aTime ); |
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227 } |
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228 |
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229 // ----------------------------------------------------------------------------- |
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230 // CRtpMetaHeader::WriteDurationL |
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231 // Writes duration of clip to meta header of the clip. |
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232 // ----------------------------------------------------------------------------- |
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233 // |
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234 void CRtpMetaHeader::WriteDurationL( const TInt aDuration ) |
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235 { |
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236 AddIntegerL( KDurationPoint, aDuration ); |
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237 } |
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238 |
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239 // ----------------------------------------------------------------------------- |
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240 // CRtpMetaHeader::WriteSeekArrayPointL |
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241 // Writes seek array point of clip to meta header of the clip. |
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242 // ----------------------------------------------------------------------------- |
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243 // |
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244 void CRtpMetaHeader::WriteSeekArrayPointL( const TInt aPoint ) |
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245 { |
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246 AddIntegerL( KSeekArrayPoint, aPoint ); |
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247 } |
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248 |
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249 // ----------------------------------------------------------------------------- |
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250 // CRtpMetaHeader::WriteUserIdL |
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251 // Writes user id to meta header of the clip. |
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252 // ----------------------------------------------------------------------------- |
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253 // |
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254 void CRtpMetaHeader::WriteUserIdL( const TDesC& aId ) |
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255 { |
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256 WriteStringDataL( KUserIdPoint, aId ); |
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257 } |
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258 |
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259 // ----------------------------------------------------------------------------- |
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260 // CRtpMetaHeader::WriteDeviceInfoL |
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261 // Writes device info to meta header of the clip. |
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262 // ----------------------------------------------------------------------------- |
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263 // |
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264 void CRtpMetaHeader::WriteDeviceInfoL( const TDesC& aInfo ) |
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265 { |
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266 WriteStringDataL( KDeviceInfoPoint, aInfo ); |
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267 iEsgDataPoint = KDeviceInfoPoint + KStringLengthBytes + aInfo.Length(); |
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268 } |
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269 |
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270 // ----------------------------------------------------------------------------- |
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271 // CRtpMetaHeader::WriteEsgDataL |
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272 // Writes ESG data to meta header of the clip. |
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273 // ----------------------------------------------------------------------------- |
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274 // |
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275 void CRtpMetaHeader::WriteEsgDataL( const TDesC& aService, const TDesC& aProgram ) |
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276 { |
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277 // Device info must exist first |
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278 User::LeaveIfError( iEsgDataPoint ); |
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279 |
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280 // Service name |
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281 WriteStringDataL( iEsgDataPoint, aService ); |
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282 |
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283 // Program name |
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284 const TInt prog( iEsgDataPoint + KStringLengthBytes + aService.Length() ); |
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285 WriteStringDataL( prog, aProgram ); |
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286 iSrtpDataPoint = prog + KStringLengthBytes + aProgram.Length(); |
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287 } |
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288 |
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289 // ----------------------------------------------------------------------------- |
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290 // CRtpMetaHeader::WriteSrtpDataL |
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291 // Writes SRTP data to meta header of the clip. |
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292 // ----------------------------------------------------------------------------- |
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293 // |
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294 void CRtpMetaHeader::WriteSrtpDataL( const TDesC8& aSrtpData ) |
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295 { |
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296 // ESG data must exist first |
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297 User::LeaveIfError( iSrtpDataPoint ); |
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298 User::LeaveIfError( ( iMode!=EMetaWrite ) * KErrAccessDenied ); |
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299 |
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300 AddIntegerL( iSrtpDataPoint, aSrtpData.Length() ); |
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301 AddDataL( iSrtpDataPoint + KIntegerBytes, aSrtpData ); |
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302 iSdpDataPoint = iSrtpDataPoint + KIntegerBytes + aSrtpData.Length(); |
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303 } |
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304 |
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305 // ----------------------------------------------------------------------------- |
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306 // CRtpMetaHeader::WriteSdpDataL |
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307 // Writes SDP file data to meta header of the clip. |
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308 // ----------------------------------------------------------------------------- |
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309 // |
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310 void CRtpMetaHeader::WriteSdpDataL( const TDesC8& aSdpData ) |
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311 { |
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312 // SRTP data must exist first |
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313 User::LeaveIfError( iSdpDataPoint ); |
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314 User::LeaveIfError( ( iMode != EMetaWrite ) * KErrAccessDenied ); |
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315 |
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316 if ( aSdpData.Length() ) |
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317 { |
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318 AddIntegerL( iSdpDataPoint, aSdpData.Length() ); |
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319 AddDataL( iSdpDataPoint + KIntegerBytes, aSdpData ); |
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320 } |
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321 else |
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322 { |
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323 AddIntegerL( iSdpDataPoint, 0 ); |
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324 } |
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325 } |
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326 |
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327 // ----------------------------------------------------------------------------- |
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328 // CRtpMetaHeader::ReadAttributesL |
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329 // Reads attributes of meta data header from clip. |
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330 // ----------------------------------------------------------------------------- |
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331 // |
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332 void CRtpMetaHeader::ReadAttributesL( SAttributes& aAtt ) |
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333 { |
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334 aAtt.iVersion = 0; |
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335 |
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336 // Attributes |
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337 HBufC8* bytes = iDataPtr.Mid( KAttributesPoint, KIntegerBytes ).AllocLC(); |
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338 TUint data( CRtpUtil::GetValueL( bytes->Des() ) ); |
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339 CleanupStack::PopAndDestroy( bytes ); |
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340 aAtt.iOngoing = ( data >> KOngoingFlagShift ) & ETrue; |
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341 aAtt.iCompleted = ( data >> KCompletedFlagShift ) & ETrue; |
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342 aAtt.iProtected = ( data >> KProtectedFlagShift ) & ETrue; |
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343 aAtt.iFailed = ( data >> KFailedFlagShift ) & ETrue; |
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344 aAtt.iVersion = ( TUint8 )( ( data >> KVersionFieldShift ) & 0xF ); |
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345 aAtt.iQuality = ( TUint8 )( ( data >> KQualityFieldShift ) & KMaxTUint8 ); |
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346 aAtt.iPostRule = ( TUint8 )( ( data >> KPostRuleFieldShift ) & KMaxTUint8 ); |
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347 aAtt.iParental = ( TUint8 )( ( data >> KParentalFieldShift ) & KMaxTUint8 ); |
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348 |
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349 // Play count |
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350 bytes = iDataPtr.Mid( KPlayCountPoint, KIntegerBytes ).AllocLC(); |
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351 aAtt.iPlayCount = CRtpUtil::GetValueL( bytes->Des() ); |
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352 CleanupStack::PopAndDestroy( bytes ); |
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353 |
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354 // Play start spot |
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355 bytes = iDataPtr.Mid( KPlaySpotPoint, KIntegerBytes ).AllocLC(); |
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356 aAtt.iPlaySpot = CRtpUtil::GetValueL( bytes->Des() ); |
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357 CleanupStack::PopAndDestroy( bytes ); |
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358 |
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359 // Reserved room for 4 integers |
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360 /* |
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361 bytes = iDataPtr.Mid( KReservedPoint1, KIntegerBytes ).AllocLC(); |
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362 aAtt.iReservedX = CRtpUtil::GetValueL( bytes->Des() ); |
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363 CleanupStack::PopAndDestroy( bytes ); |
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364 |
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365 bytes = iDataPtr.Mid( KReservedPoint2, KIntegerBytes ).AllocLC(); |
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366 aAtt.iReservedX = CRtpUtil::GetValueL( bytes->Des() ); |
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367 CleanupStack::PopAndDestroy( bytes ); |
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368 |
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369 bytes = iDataPtr.Mid( KReservedPoint3, KIntegerBytes ).AllocLC(); |
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370 aAtt.iReservedX = CRtpUtil::GetValueL( bytes->Des() ); |
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371 CleanupStack::PopAndDestroy( bytes ); |
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372 |
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373 bytes = iDataPtr.Mid( KReservedPoint4, KIntegerBytes ).AllocLC(); |
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374 aAtt.iReservedX = CRtpUtil::GetValueL( bytes->Des() ); |
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375 CleanupStack::PopAndDestroy( bytes ); |
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376 */ |
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377 } |
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378 |
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379 // ----------------------------------------------------------------------------- |
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380 // CRtpMetaHeader::ReadStartTimeL |
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381 // Reads date/time of meta header from the clip. |
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382 // ----------------------------------------------------------------------------- |
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383 // |
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384 void CRtpMetaHeader::ReadStartTimeL( TTime& aTime ) |
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385 { |
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386 GetTimeL( KStartTimePoint, aTime ); |
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387 } |
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388 |
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389 // ----------------------------------------------------------------------------- |
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390 // CRtpMetaHeader::ReadEndTimeL |
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391 // Reads date/time of meta header from the clip. |
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392 // ----------------------------------------------------------------------------- |
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393 // |
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394 void CRtpMetaHeader::ReadEndTimeL( TTime& aTime ) |
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395 { |
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396 GetTimeL( KEndTimePoint, aTime ); |
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397 } |
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398 |
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399 // ----------------------------------------------------------------------------- |
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400 // CRtpMetaHeader::ReadDurationL |
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401 // Reads clip duration of meta header from the clip. |
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402 // ----------------------------------------------------------------------------- |
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403 // |
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404 void CRtpMetaHeader::ReadDurationL( TInt& aDuration ) |
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405 { |
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406 HBufC8* bytes = iDataPtr.Mid( KDurationPoint, KIntegerBytes ).AllocLC(); |
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407 aDuration = CRtpUtil::GetValueL( bytes->Des() ); |
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408 User::LeaveIfError( aDuration ); |
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409 CleanupStack::PopAndDestroy( bytes ); |
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410 } |
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411 |
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412 // ----------------------------------------------------------------------------- |
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413 // CRtpMetaHeader::ReadSeekArrayPointL |
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414 // Reads seek array point of meta header from the clip. |
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415 // ----------------------------------------------------------------------------- |
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416 // |
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417 void CRtpMetaHeader::ReadSeekArrayPointL( TInt& aPoint ) |
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418 { |
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419 HBufC8* bytes = iDataPtr.Mid( KSeekArrayPoint, KIntegerBytes ).AllocLC(); |
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420 aPoint = CRtpUtil::GetValueL( bytes->Des() ); |
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421 User::LeaveIfError( aPoint ); |
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422 CleanupStack::PopAndDestroy( bytes ); |
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423 } |
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424 |
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425 // ----------------------------------------------------------------------------- |
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426 // CRtpMetaHeader::ReadUserIdL |
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427 // Reads user id of meta header from the clip. |
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428 // ----------------------------------------------------------------------------- |
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429 // |
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430 void CRtpMetaHeader::ReadUserIdL( TDes& aId ) |
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431 { |
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432 ReadStringDataL( KUserIdPoint, aId ); |
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433 } |
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434 |
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435 // ----------------------------------------------------------------------------- |
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436 // CRtpMetaHeader::ReadDeviceInfoL |
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437 // Reads device info of meta header from the clip. |
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438 // ----------------------------------------------------------------------------- |
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439 // |
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440 void CRtpMetaHeader::ReadDeviceInfoL( TDes& aInfo ) |
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441 { |
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442 ReadStringDataL( KDeviceInfoPoint, aInfo ); |
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443 } |
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444 |
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445 // ----------------------------------------------------------------------------- |
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446 // CRtpMetaHeader::ReadEsgDataL |
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447 // Reads ESG data of meta header from the clip. |
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448 // ----------------------------------------------------------------------------- |
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449 // |
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450 void CRtpMetaHeader::ReadEsgDataL( TDes& aService, TDes& aProgram ) |
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451 { |
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452 User::LeaveIfError( iEsgDataPoint ); |
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453 |
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454 // Service name |
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455 ReadStringDataL( iEsgDataPoint, aService ); |
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456 |
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457 // Program name |
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458 const TInt prog( iEsgDataPoint + KStringLengthBytes + aService.Length() ); |
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459 ReadStringDataL( prog, aProgram ); |
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460 } |
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461 |
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462 // ----------------------------------------------------------------------------- |
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463 // CRtpMetaHeader::ReadSrtpDataL |
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464 // Reads SRTP data of meta header from the clip. |
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465 // ----------------------------------------------------------------------------- |
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466 // |
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467 HBufC8* CRtpMetaHeader::ReadSrtpDataL() |
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468 { |
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469 User::LeaveIfError( iSrtpDataPoint ); |
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470 |
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471 // Length |
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472 const TInt len( CRtpUtil::GetValueL( |
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473 iDataPtr.Mid( iSrtpDataPoint, KIntegerBytes ) ) ); |
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474 // Data |
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475 const TInt total( iSrtpDataPoint + KIntegerBytes + len ); |
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476 User::LeaveIfError( ( len < 0 || total > iDataPtr.MaxLength() ) * KErrCorrupt ); |
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477 HBufC8* buf = iDataPtr.Mid( iSrtpDataPoint + KIntegerBytes, len ).AllocL(); |
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478 return buf; |
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479 } |
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480 |
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481 // ----------------------------------------------------------------------------- |
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482 // CRtpMetaHeader::ReadSdpDataL |
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483 // Reads SDP file data of meta header from the clip. |
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484 // ----------------------------------------------------------------------------- |
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485 // |
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486 HBufC8* CRtpMetaHeader::ReadSdpDataL() |
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487 { |
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488 User::LeaveIfError( iSdpDataPoint ); |
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489 |
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490 // Length |
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491 const TInt len( CRtpUtil::GetValueL( |
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492 iDataPtr.Mid( iSdpDataPoint, KIntegerBytes ) ) ); |
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493 // Data |
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494 const TInt total( iSdpDataPoint + KIntegerBytes + len ); |
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495 User::LeaveIfError( ( len <= 0 || total > iDataPtr.MaxLength() ) * KErrCorrupt ); |
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496 HBufC8* buf = iDataPtr.Mid( iSdpDataPoint + KIntegerBytes, len ).AllocL(); |
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497 return buf; |
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498 } |
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499 |
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500 // ----------------------------------------------------------------------------- |
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501 // CRtpMetaHeader::WriteStringDataL |
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502 // Writes data with length info to meta header of the clip. |
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503 // ----------------------------------------------------------------------------- |
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504 // |
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505 void CRtpMetaHeader::WriteStringDataL( const TInt aPosition, const TDesC& aData ) |
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506 { |
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507 const TInt len( aData.Length() ); |
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508 User::LeaveIfError( ( len > TInt( KMaxTUint8 ) ) * KErrArgument ); |
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509 User::LeaveIfError( ( iMode != EMetaWrite ) * KErrAccessDenied ); |
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510 |
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511 // Length |
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512 TBuf8<KStringLengthBytes> buf( KNullDesC8 ); |
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513 buf.Append( KCharSpace ); |
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514 buf[0] = ( TUint8 )( len ); |
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515 AddDataL( aPosition, buf ); |
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516 |
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517 // Data to 8-bit |
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518 HBufC8* data = HBufC8::NewLC( aData.Length() ); |
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519 TPtr8 ptr( data->Des() ); |
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520 ptr.Copy( aData ); |
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521 AddDataL( aPosition + KStringLengthBytes, ptr ); |
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522 CleanupStack::PopAndDestroy( data ); |
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523 } |
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524 |
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525 // ----------------------------------------------------------------------------- |
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526 // CRtpMetaHeader::ReadStringDataL |
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527 // Reads data with length info of meta header from the clip. |
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528 // ----------------------------------------------------------------------------- |
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529 // |
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530 void CRtpMetaHeader::ReadStringDataL( const TInt aPosition, TDes& aData ) |
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531 { |
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532 User::LeaveIfError( ( aPosition < 0 || aPosition > iDataPtr.Length() ) |
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533 * KErrArgument ); |
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534 const TInt len( iDataPtr[aPosition] ); |
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535 User::LeaveIfError( ( len < 0 || len > TInt( KMaxTUint8 ) ) * KErrCorrupt ); |
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536 User::LeaveIfError( ( len > aData.MaxLength() ) * KErrArgument ); |
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537 |
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538 aData.Copy( iDataPtr.Mid( aPosition + KStringLengthBytes, len ) ); |
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539 } |
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540 |
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541 // ----------------------------------------------------------------------------- |
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542 // CRtpMetaHeader::AddTimeL |
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543 // Writes data/time or duration of clip to meta header of the clip. |
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544 // ----------------------------------------------------------------------------- |
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545 // |
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546 void CRtpMetaHeader::AddTimeL( const TInt aPosition, const TTime& aTime ) |
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547 { |
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548 HBufC8* bytes = CRtpUtil::MakeBytesLC( I64LOW( aTime.Int64() ) ); |
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549 AddDataL( aPosition, bytes->Des() ); |
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550 CleanupStack::PopAndDestroy( bytes ); |
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551 |
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552 bytes = CRtpUtil::MakeBytesLC( I64HIGH( aTime.Int64() ) ); |
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553 AddDataL( aPosition + KIntegerBytes, bytes->Des() ); |
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554 CleanupStack::PopAndDestroy( bytes ); |
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555 } |
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556 |
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557 // ----------------------------------------------------------------------------- |
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558 // CRtpMetaHeader::GetTimeL |
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559 // Reads time value of meta header from the clip. |
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560 // ----------------------------------------------------------------------------- |
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561 // |
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562 void CRtpMetaHeader::GetTimeL( const TInt aPosition, TTime& aTime ) |
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563 { |
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564 TUint low( CRtpUtil::GetValueL( |
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565 iDataPtr.Mid( aPosition, KIntegerBytes ) ) ); |
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566 TUint high( CRtpUtil::GetValueL( |
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567 iDataPtr.Mid( aPosition + KIntegerBytes, KIntegerBytes ) ) ); |
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568 |
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569 aTime = TInt64( MAKE_TINT64( high, low ) ); |
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570 } |
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571 |
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572 // ----------------------------------------------------------------------------- |
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573 // CRtpMetaHeader::AddIntegerL |
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574 // ----------------------------------------------------------------------------- |
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575 // |
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576 void CRtpMetaHeader::AddIntegerL( const TInt aPosition, const TInt aValue ) |
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577 { |
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578 HBufC8* bytes = CRtpUtil::MakeBytesLC( aValue ); |
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579 AddDataL( aPosition, bytes->Des() ); |
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580 CleanupStack::PopAndDestroy( bytes ); |
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581 } |
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582 |
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583 // ----------------------------------------------------------------------------- |
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584 // CRtpMetaHeader::AddDataL |
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585 // ----------------------------------------------------------------------------- |
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586 // |
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587 void CRtpMetaHeader::AddDataL( const TInt aPosition, const TDesC8& aData ) |
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588 { |
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589 // Write must be in certain order |
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590 User::LeaveIfError( ( aPosition > iMetaTotal ) * KErrWrite ); |
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591 |
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592 switch ( iMode ) |
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593 { |
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594 case EMetaWrite: |
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595 iMetaTotal = iMetaData->Length() + aData.Length(); |
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596 iMetaData = iMetaData->ReAllocL( iMetaTotal ); |
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597 iDataPtr.Set( iMetaData->Des() ); |
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598 iDataPtr.Insert( aPosition, aData ); |
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599 break; |
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600 |
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601 case EMetaUpdate: |
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602 User::LeaveIfError( iFile.Write( aPosition, aData, aData.Length() ) ); |
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603 break; |
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604 |
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605 default: |
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606 User::Leave( KErrNotSupported ); |
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607 break; |
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608 } |
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609 } |
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610 |
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611 // ----------------------------------------------------------------------------- |
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612 // CRtpMetaHeader::ReadTintFromFileL |
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613 // ----------------------------------------------------------------------------- |
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614 // |
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615 void CRtpMetaHeader::ReadTintFromFileL( const TInt& aPosition, TInt& aValue ) |
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616 { |
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617 HBufC8* bytes = HBufC8::NewLC( KIntegerBytes ); |
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618 TPtr8 ptr( bytes->Des() ); |
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619 User::LeaveIfError( iFile.Read( aPosition, ptr, KIntegerBytes ) ); |
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620 |
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621 aValue = CRtpUtil::GetValueL( ptr ); |
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622 CleanupStack::PopAndDestroy( bytes ); |
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623 } |
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624 |
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625 // End of File |
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