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1 /* |
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2 * Copyright (c) 2004-2007 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 "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: Payload format component capable to write RTP payload |
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15 * containing G729 audio. |
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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 |
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22 // INCLUDE FILES |
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23 #include "g729payloadformatwrite.h" |
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24 #include "g729payloadformatutil.h" |
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25 #include "mccrtpdatasink.h" |
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26 #include "mmccinterfacedef.h" |
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27 #include "mccuids.hrh" |
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28 #include "mccdef.h" |
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29 #include "streamformatter.h" |
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30 #include "mccrtpmediaclock.h" |
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31 #include "mccredpayloadwrite.h" |
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32 |
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33 |
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34 // ============================= LOCAL FUNCTIONS =============================== |
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35 |
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36 // ============================ MEMBER FUNCTIONS =============================== |
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37 |
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38 // ----------------------------------------------------------------------------- |
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39 // CG729PayloadFormatWrite::CG729PayloadFormatWrite |
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40 // C++ default constructor can NOT contain any code, that |
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41 // might leave. |
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42 // ----------------------------------------------------------------------------- |
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43 // |
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44 CG729PayloadFormatWrite::CG729PayloadFormatWrite() |
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45 { |
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46 |
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47 } |
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48 |
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49 // ----------------------------------------------------------------------------- |
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50 // CG729PayloadFormatWrite::ConstructL |
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51 // Symbian 2nd phase constructor can leave. |
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52 // ----------------------------------------------------------------------------- |
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53 // |
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54 void CG729PayloadFormatWrite::ConstructL (MDataSink* aSink) |
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55 { |
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56 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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57 RDebug::Print( _L("CG729PayloadFormatWrite::ConstructL()") ); |
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58 #endif |
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59 |
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60 // Set default values |
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61 iFramesPerPacket = 2; |
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62 iFourCC.Set( KMccFourCCIdG729 ); |
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63 |
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64 // Set data sink |
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65 iIsRtpSink = ( KMccRtpSinkUid == aSink->DataSinkType() ); |
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66 TBool isRedEncoder |
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67 = ( TUid::Uid( KImplUidRedPayloadFormatEncode ) == aSink->DataSinkType() ); |
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68 |
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69 if ( iIsRtpSink ) |
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70 { |
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71 CMccRtpDataSink* tmp = static_cast<CMccRtpDataSink*>( aSink ); |
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72 iRtpDataSink = static_cast<MMccRtpDataSink*>( tmp ); |
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73 } |
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74 else if ( isRedEncoder ) |
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75 { |
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76 CMccRedPayloadWrite* tmp = static_cast<CMccRedPayloadWrite*>( aSink ); |
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77 iRtpDataSink = static_cast<MMccRtpDataSink*>( tmp ); |
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78 iIsRtpSink = ETrue; |
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79 } |
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80 else |
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81 { |
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82 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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83 RDebug::Print( _L("CG729PayloadFormatWrite::ConstructL, sink not RTP one" ) ); |
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84 #endif |
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85 } |
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86 |
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87 iClip = aSink; |
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88 |
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89 // Initialize state machine |
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90 iStateMachine = CFormatEncodeStateMachine::NewL( this ); |
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91 } |
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92 |
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93 // ----------------------------------------------------------------------------- |
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94 // CG729PayloadFormatWrite::NewL |
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95 // Two-phased constructor. |
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96 // ----------------------------------------------------------------------------- |
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97 // |
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98 CG729PayloadFormatWrite* CG729PayloadFormatWrite::NewL (MDataSink* aSink) |
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99 { |
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100 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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101 RDebug::Print (_L ("CG729PayloadFormatWrite::NewL()")); |
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102 #endif |
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103 |
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104 __ASSERT_ALWAYS( aSink, User::Leave( KErrArgument ) ); |
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105 |
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106 CG729PayloadFormatWrite* self = new (ELeave) CG729PayloadFormatWrite; |
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107 CleanupStack::PushL ( self ); |
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108 self->ConstructL ( aSink ); |
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109 CleanupStack::Pop( self ); |
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110 return self; |
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111 } |
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112 |
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113 |
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114 // ----------------------------------------------------------------------------- |
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115 // CG729PayloadFormatWrite::~CG729PayloadFormatWrite |
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116 // Destructor.. |
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117 // ----------------------------------------------------------------------------- |
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118 // |
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119 CG729PayloadFormatWrite::~CG729PayloadFormatWrite () |
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120 { |
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121 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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122 RDebug::Print( _L("CG729PayloadFormatWrite::~CG729PayloadFormatWrite()") ); |
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123 #endif |
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124 |
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125 if ( iStateMachine ) |
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126 { |
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127 iStateMachine->Cancel(); |
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128 } |
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129 |
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130 // Media clock is not owned |
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131 if ( iRtpMediaClock ) |
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132 { |
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133 iRtpMediaClock->UnregisterMediaFormat( iKey ); |
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134 } |
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135 |
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136 delete iSourceBuffer; |
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137 delete iSinkBuffer; |
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138 delete iStateMachine; |
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139 } |
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140 |
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141 // ----------------------------------------------------------------------------- |
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142 // CG729PayloadFormatWrite::SinkThreadLogon |
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143 // Passes the logon command to the sink clip |
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144 // ----------------------------------------------------------------------------- |
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145 // |
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146 TInt CG729PayloadFormatWrite::SinkThreadLogon( |
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147 MAsyncEventHandler& aEventHandler ) |
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148 { |
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149 iClip->SinkThreadLogon( aEventHandler ); |
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150 return KErrNone; |
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151 } |
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152 |
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153 // ----------------------------------------------------------------------------- |
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154 // CG729PayloadFormatWrite::SinkThreadLogoff |
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155 // Passes the logoff command to the sink clip |
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156 // ----------------------------------------------------------------------------- |
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157 // |
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158 void CG729PayloadFormatWrite::SinkThreadLogoff() |
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159 { |
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160 iClip->SinkThreadLogoff(); |
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161 } |
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162 |
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163 // ----------------------------------------------------------------------------- |
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164 // CG729PayloadFormatWrite::CreateSinkBufferL |
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165 // Create a sink buffer |
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166 // ----------------------------------------------------------------------------- |
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167 // |
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168 CMMFBuffer* CG729PayloadFormatWrite::CreateSinkBufferL( TMediaId aMediaId, |
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169 TBool &aReference ) |
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170 { |
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171 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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172 RDebug::Print( _L("CG729PayloadFormatWrite::CreateSinkBufferL()") ); |
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173 #endif |
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174 |
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175 if ( KUidMediaTypeAudio != aMediaId.iMediaType ) |
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176 { |
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177 User::Leave( KErrNotSupported ); |
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178 } |
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179 |
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180 aReference = ETrue; |
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181 |
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182 // Create buffer for data transfer between ULDataPath and FormatWrite |
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183 return CreateSinkBufferOfSizeL( KG729CodecEncBufSize ); |
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184 } |
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185 |
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186 // ----------------------------------------------------------------------------- |
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187 // CG729PayloadFormatWrite::CreateSinkBufferOfSizeL |
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188 // Create a sink buffer of the given size. |
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189 // ----------------------------------------------------------------------------- |
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190 // |
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191 CMMFDataBuffer* CG729PayloadFormatWrite::CreateSinkBufferOfSizeL( TUint aSize ) |
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192 { |
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193 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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194 RDebug::Print( _L("CG729PayloadFormatWrite::CreateSinkBufferOfSizeL()") ); |
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195 #endif |
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196 |
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197 // Need to create a source buffer |
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198 if ( !iSourceBuffer ) |
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199 { |
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200 iSourceBuffer = CMMFDataBuffer::NewL( aSize ); |
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201 iSourceBuffer->Data().FillZ( aSize ); |
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202 iSourceBuffer->SetRequestSizeL( aSize ); |
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203 } |
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204 |
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205 return iSourceBuffer; |
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206 } |
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207 |
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208 // ----------------------------------------------------------------------------- |
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209 // CG729PayloadFormatWrite::EmptyBufferL |
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210 // Empty the given source buffer |
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211 // ----------------------------------------------------------------------------- |
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212 // |
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213 void CG729PayloadFormatWrite::EmptyBufferL( CMMFBuffer* aBuffer, |
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214 MDataSource* aSupplier, TMediaId aMediaId ) |
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215 { |
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216 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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217 RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL aBuffer[0x%x]"), aBuffer); |
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218 #endif |
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219 |
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220 __ASSERT_ALWAYS( aBuffer, User::Leave( KErrArgument ) ); |
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221 __ASSERT_ALWAYS ( aBuffer == iSourceBuffer, User::Leave( KErrArgument ) ); |
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222 __ASSERT_ALWAYS( aSupplier, User::Leave( KErrArgument ) ); |
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223 __ASSERT_ALWAYS( KUidMediaTypeAudio == aMediaId.iMediaType, |
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224 User::Leave( KErrNotSupported ) ); |
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225 |
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226 // Save source buffer parameters and change the state. |
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227 iDataPath = aSupplier; |
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228 iMediaId = aMediaId; |
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229 iSourceBuffer = static_cast<CMMFDataBuffer*>( aBuffer ); |
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230 |
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231 if ( !iSinkBuffer ) |
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232 { |
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233 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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234 RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL, sink not ready!") ); |
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235 #endif |
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236 |
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237 iStateMachine->ChangeState( ESourceBufferEmptied ); |
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238 return; |
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239 } |
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240 |
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241 TUint32 ts = 0; |
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242 User::LeaveIfError( iRtpMediaClock->GetTimeStamp( iKey, ts ) ); |
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243 |
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244 if ( iRtpMediaClock->TimeBasedIncrement() ) |
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245 { |
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246 iFirstPacketFinished = EFalse; |
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247 } |
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248 |
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249 if ( 0 == iFrameIndex ) |
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250 { |
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251 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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252 RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL, SetTimeToPlay") ); |
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253 #endif |
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254 |
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255 iSinkBuffer->SetTimeToPlay( TInt64( ts ) ); |
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256 iSinkBuffer->SetFrameNumber( aBuffer->FrameNumber() ); |
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257 } |
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258 |
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259 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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260 |
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261 TDesC8& data = iSourceBuffer->Data(); |
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262 RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL DATALEN: %d"), data.Length() ); |
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263 RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL DATA_SZ: %d"), data.Size() ); |
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264 |
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265 if( data.Length() > KG729NumOfHeaderBytes ) |
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266 { |
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267 RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL DATA[0]: %u"), data[0] ); |
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268 RDebug::Print( _L("CG729PayloadFormatWrite::EmptyBufferL DATA[1]: %u"), data[1] ); |
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269 } |
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270 |
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271 #endif |
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272 |
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273 iStateMachine->ChangeState( EEmptySourceBuffer ); |
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274 } |
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275 |
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276 // ----------------------------------------------------------------------------- |
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277 // CG729PayloadFormatWrite::SetSinkDataTypeCode |
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278 // Set the sink data type to the given four CC code for the given media |
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279 // ----------------------------------------------------------------------------- |
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280 // |
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281 TInt CG729PayloadFormatWrite::SetSinkDataTypeCode( TFourCC aSinkFourCC, |
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282 TMediaId aMediaId ) |
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283 { |
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284 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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285 RDebug::Print (_L ("CG729PayloadFormatWrite::SetSinkDataTypeCode()")); |
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286 #endif |
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287 |
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288 if ( KUidMediaTypeAudio != aMediaId.iMediaType ) |
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289 { |
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290 return KErrNotSupported; |
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291 } |
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292 |
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293 iFourCC = aSinkFourCC; |
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294 |
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295 return KErrNone; |
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296 } |
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297 |
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298 // ----------------------------------------------------------------------------- |
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299 // CG729PayloadFormatWrite::SinkDataTypeCode |
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300 // Return the sink data type (four CC code) for the given media ID |
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301 // ----------------------------------------------------------------------------- |
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302 // |
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303 TFourCC CG729PayloadFormatWrite::SinkDataTypeCode( TMediaId aMediaId ) |
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304 { |
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305 if ( KUidMediaTypeAudio == aMediaId.iMediaType ) |
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306 { |
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307 return iFourCC; |
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308 } |
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309 else |
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310 { |
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311 return TFourCC(); //defaults to 'NULL' fourCC |
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312 } |
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313 } |
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314 |
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315 // ----------------------------------------------------------------------------- |
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316 // CG729PayloadFormatWrite::BufferEmptiedL |
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317 // Called after payload buffer is completely emptied by RtpDataSink. |
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318 // ----------------------------------------------------------------------------- |
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319 // |
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320 void CG729PayloadFormatWrite::BufferEmptiedL( CMMFBuffer* /*aBuffer*/ ) |
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321 { |
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322 |
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323 } |
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324 |
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325 // ----------------------------------------------------------------------------- |
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326 // CG729PayloadFormatWrite::NumChannels |
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327 // Returns number of channels |
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328 // ----------------------------------------------------------------------------- |
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329 // |
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330 TUint CG729PayloadFormatWrite::NumChannels() |
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331 { |
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332 return KMono; |
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333 } |
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334 |
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335 // ----------------------------------------------------------------------------- |
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336 // CG729PayloadFormatWrite::SampleRate |
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337 // Returns SampleRate |
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338 // ----------------------------------------------------------------------------- |
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339 // |
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340 TUint CG729PayloadFormatWrite::SampleRate() |
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341 { |
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342 return KG729SampleRate; |
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343 } |
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344 |
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345 // ----------------------------------------------------------------------------- |
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346 // CG729PayloadFormatWrite::SetSampleRate |
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347 // Set SampleRate |
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348 // ----------------------------------------------------------------------------- |
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349 // |
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350 TInt CG729PayloadFormatWrite::SetSampleRate( TUint aSampleRate ) |
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351 { |
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352 return ( KG729SampleRate == aSampleRate ) ? KErrNone : KErrNotSupported; |
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353 } |
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354 |
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355 // ----------------------------------------------------------------------------- |
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356 // CG729PayloadFormatWrite::FrameTimeInterval |
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357 // Return the frame time interval for the given media |
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358 // ----------------------------------------------------------------------------- |
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359 // |
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360 TTimeIntervalMicroSeconds CG729PayloadFormatWrite::FrameTimeInterval( |
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361 TMediaId aMediaId) const |
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362 { |
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363 if ( KUidMediaTypeAudio == aMediaId.iMediaType ) |
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364 { |
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365 return iFrameTimeInterval; |
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366 } |
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367 else |
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368 { |
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369 return TTimeIntervalMicroSeconds( TInt64( 0 ) ); |
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370 } |
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371 } |
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372 |
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373 // ----------------------------------------------------------------------------- |
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374 // CG729PayloadFormatWrite::Duration |
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375 // Return the frame time interval for the given media |
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376 // NOT SUPPORTED |
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377 // ----------------------------------------------------------------------------- |
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378 // |
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379 TTimeIntervalMicroSeconds CG729PayloadFormatWrite::Duration( |
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380 TMediaId /*aMediaType*/) const |
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381 { |
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382 return TTimeIntervalMicroSeconds( TInt64( 0 ) ); |
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383 } |
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384 |
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385 // ----------------------------------------------------------------------------- |
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386 // CG729PayloadFormatWrite::EmptySourceBufferL |
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387 // Empty the given sourcebuffer |
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388 // Sourcebuffer is given in iSourceBuffer. |
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389 // Called by statemachine |
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390 // ----------------------------------------------------------------------------- |
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391 // |
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392 void CG729PayloadFormatWrite::EmptySourceBufferL() |
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393 { |
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394 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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395 RDebug::Print (_L ("CG729PayloadFormatWrite::EmptySourceBufferL - SRC BUF SIZE: %d"), |
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396 iSourceBuffer->Data().Size() ); |
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397 #endif |
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398 |
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399 TPtrC8 audioFrame( iSourceBuffer->Data().Mid( KG729NumOfHeaderBytes ) ); |
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400 TPtrC8 dtxHeader( iSourceBuffer->Data().Left( KG729NumOfHeaderBytes ) ); |
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401 |
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402 if ( KAudioFrameHeaderByte == dtxHeader[0] ) |
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403 { |
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404 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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405 RDebug::Print (_L ("CG729PayloadFormatWrite::EmptySourceBufferL - AUDIO FRAME") ); |
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406 #endif |
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407 |
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408 iFrameIndex++; |
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409 DoBitPacking( audioFrame, iSinkBuffer->Data(), EFalse ); |
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410 } |
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411 else if ( KCNoiseFrameHeaderByte == dtxHeader[0] ) |
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412 { |
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413 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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414 RDebug::Print (_L ("CG729PayloadFormatWrite::EmptySourceBufferL - CNOISE FRAME") ); |
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415 #endif |
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416 |
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417 // This is first comfort noise received. Audio in buffer must send |
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418 // immediately with CN frame at the end of buffer. RFC3551 4.5.6. |
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419 iFrameIndex = 0; |
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420 if ( KErrNone == DoBitPacking( audioFrame, iSinkBuffer->Data(), ETrue ) ) |
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421 { |
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422 DeliverPacketL( *iSinkBuffer ); |
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423 } |
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424 } |
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425 else |
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426 { |
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427 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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428 RDebug::Print (_L ("CG729PayloadFormatWrite::EmptySourceBufferL - NULL BIT RATE FRAME") ); |
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429 #endif |
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430 } |
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431 |
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432 if ( iFrameIndex == iFramesPerPacket ) |
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433 { |
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434 // Packetization interval amount of audio frames is received |
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435 iFrameIndex = 0; |
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436 DeliverPacketL( *iSinkBuffer ); |
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437 } |
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438 |
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439 iStateMachine->ChangeState( ESourceBufferEmptied ); |
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440 } |
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441 |
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442 // ----------------------------------------------------------------------------- |
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443 // CG729PayloadFormatWrite::DeliverPacketL |
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444 // Prepare the packet header and deliver the packet to the datasink. |
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445 // ----------------------------------------------------------------------------- |
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446 // |
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447 void CG729PayloadFormatWrite::DeliverPacketL( CMMFDataBuffer& aPayload ) |
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448 { |
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449 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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450 RDebug::Print( _L("CG729PayloadFormatWrite::DeliverPacketL - TSTAMP: %u"), |
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451 static_cast<TUint32>( aPayload.TimeToPlay().Int64() ) ); |
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452 #endif |
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453 |
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454 // Set the marker bit if it is very first packet. |
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455 if ( !iFirstPacketFinished ) |
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456 { |
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457 iRtpSendHeader.iMarker = 1; |
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458 iFirstPacketFinished = ETrue; |
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459 } |
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460 else |
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461 { |
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462 iRtpSendHeader.iMarker = 0; |
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463 } |
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464 |
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465 if ( !iClip ) |
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466 { |
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467 User::Leave( KErrNotReady ); |
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468 } |
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469 |
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470 // Construct RTP header. |
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471 iRtpSendHeader.iPayloadType = iCInfo.iPayloadType; |
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472 iRtpSendHeader.iTimestamp |
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473 = static_cast<TUint32>( aPayload.TimeToPlay().Int64() ); |
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474 |
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475 if ( aPayload.Data().Size() ) |
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476 { |
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477 if ( iIsRtpSink ) |
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478 { |
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479 iRtpDataSink->EmptyBufferL( &aPayload, this, iMediaId, iRtpSendHeader ); |
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480 } |
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481 else |
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482 { |
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483 aPayload.SetLastBuffer( iRtpSendHeader.iMarker ); |
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484 iClip->EmptyBufferL( &aPayload, this, iMediaId ); |
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485 } |
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486 } |
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487 |
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488 |
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489 // Reset the payload buffer -- only if previous EmptyBufferL() is a |
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490 // synchronous call |
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491 aPayload.Data().Zero(); |
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492 } |
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493 |
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494 // ----------------------------------------------------------------------------- |
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495 // CG729PayloadFormatWrite::SourceBufferEmptiedL |
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496 // Handle the event that sourcebuffer has been emptied. |
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497 // Sourcebuffer is given in "iSourceBuffer". |
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498 // Called by the statemachine. |
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499 // ----------------------------------------------------------------------------- |
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500 // |
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501 void CG729PayloadFormatWrite::SourceBufferEmptiedL() |
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502 { |
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503 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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504 RDebug::Print (_L ("CG729PayloadFormatWrite::SourceBufferEmptiedL()")); |
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505 #endif |
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506 |
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507 iDataPath->BufferEmptiedL(iSourceBuffer); |
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508 } |
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509 |
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510 // ----------------------------------------------------------------------------- |
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511 // CG729PayloadFormatWrite::SinkPrimeL |
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512 // Prime sink |
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513 // ----------------------------------------------------------------------------- |
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514 // |
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515 void CG729PayloadFormatWrite::SinkPrimeL() |
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516 { |
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517 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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518 RDebug::Print (_L ("CG729PayloadFormatWrite::SinkPrimeL()")); |
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519 #endif |
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520 |
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521 iClip->SinkPrimeL(); |
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522 } |
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523 |
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524 // ----------------------------------------------------------------------------- |
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525 // CG729PayloadFormatWrite::SinkPlayL |
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526 // Start playing. |
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527 // ----------------------------------------------------------------------------- |
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528 // |
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529 void CG729PayloadFormatWrite::SinkPlayL() |
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530 { |
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531 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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532 RDebug::Print (_L ("CG729PayloadFormatWrite::SinkPlayL()")); |
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533 #endif |
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534 |
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535 // Allocate buffer for data transfer between |
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536 // FormatWrite - MDataSink AND FormatWrite - redundancy payload encoder |
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537 delete iSinkBuffer; |
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538 iSinkBuffer = NULL; |
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539 iSinkBuffer = CMMFDataBuffer::NewL( iCInfo.iFrameSize * iFramesPerPacket ); |
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540 |
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541 // Start state machine |
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542 iStateMachine->ChangeState( EEncodeIdle ); |
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543 // RTP Header marker-bit must be set to 1 when starting stream |
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544 iFirstPacketFinished = EFalse; |
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545 |
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546 // Start a new cycle of frame collecting |
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547 iFrameIndex = 0; |
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548 |
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549 if ( iSinkBuffer ) |
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550 { |
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551 iSinkBuffer->SetLastBuffer( EFalse ); |
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552 } |
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553 |
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554 iClip->SinkPlayL(); |
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555 } |
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556 |
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557 // ----------------------------------------------------------------------------- |
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558 // CG729PayloadFormatWrite::SinkPauseL |
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559 // Pause sink |
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560 // ----------------------------------------------------------------------------- |
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561 // |
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562 void CG729PayloadFormatWrite::SinkPauseL() |
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563 { |
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564 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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565 RDebug::Print (_L ("CG729PayloadFormatWrite::SinkPauseL()")); |
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566 #endif |
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567 |
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568 iStateMachine->Cancel(); |
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569 iStateMachine->ChangeState( EEncodeIdle ); |
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570 |
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571 iClip->SinkPauseL(); |
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572 } |
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573 |
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574 // ----------------------------------------------------------------------------- |
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575 // CG729PayloadFormatWrite::SinkStopL |
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576 // Stop sink |
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577 // ----------------------------------------------------------------------------- |
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578 // |
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579 void CG729PayloadFormatWrite::SinkStopL() |
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580 { |
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581 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
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582 RDebug::Print( _L("CG729PayloadFormatWrite::SinkStopL") ); |
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583 #endif |
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584 |
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585 // Stop state machine |
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586 iStateMachine->Cancel(); |
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587 iStateMachine->ChangeState( EEncodeIdle ); |
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588 iClip->SinkStopL(); |
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589 } |
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590 |
|
591 // --------------------------------------------------------------------------- |
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592 // CG729PayloadFormatWrite::DoBitPacking |
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593 // Does bit-packing for encoded speech parameters got from encoder. |
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594 // --------------------------------------------------------------------------- |
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595 // |
|
596 TInt CG729PayloadFormatWrite::DoBitPacking( const TDesC8& aSourceBuf, |
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597 TDes8& aDestBuf, TBool aIsCNoise ) const |
|
598 { |
|
599 if ( aDestBuf.MaxLength() - aDestBuf.Length() < KG729FrameSize10ms ) |
|
600 { |
|
601 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
|
602 RDebug::Print ( _L ( "CG729PayloadFormatWrite::DoBitPacking - DESTINATION BUF TOO SMALL!" ) ); |
|
603 #endif |
|
604 |
|
605 return KErrArgument; |
|
606 } |
|
607 else |
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608 { |
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609 TStreamEncoder encoder; |
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610 encoder.Initialize( const_cast<TUint8*>( aDestBuf.Ptr() ), aDestBuf.Length(), 0 ); |
|
611 |
|
612 TUint8 numOfParams( 0 ); |
|
613 if ( aIsCNoise ) |
|
614 { |
|
615 numOfParams = KG729NumOfCNoiseParams; |
|
616 aDestBuf.SetLength( aDestBuf.Length() + KG729CNFrameSize ); |
|
617 } |
|
618 else |
|
619 { |
|
620 numOfParams = KG729NumOfAudioParams; |
|
621 aDestBuf.SetLength( aDestBuf.Length() + KG729FrameSize10ms ); |
|
622 } |
|
623 |
|
624 TUint8 curParamBits( 0 ); |
|
625 TInt byteIndex( 0 ); |
|
626 TUint8 lsb( 0 ); |
|
627 TUint8 msb( 0 ); |
|
628 |
|
629 for ( TInt i = 0; i < numOfParams; i++ ) |
|
630 { |
|
631 if ( aIsCNoise ) |
|
632 { |
|
633 curParamBits = KG729CodecBufCNoiseBits[i]; |
|
634 } |
|
635 else |
|
636 { |
|
637 curParamBits = KG729CodecBufAudioBits[i]; |
|
638 } |
|
639 |
|
640 if ( KBitsInByte >= curParamBits ) |
|
641 { |
|
642 lsb = aSourceBuf[ byteIndex ]; |
|
643 encoder.Encode( TUint32( lsb ), curParamBits ); |
|
644 } |
|
645 else |
|
646 { |
|
647 lsb = aSourceBuf[ byteIndex ]; |
|
648 msb = aSourceBuf[ byteIndex + 1 ]; |
|
649 encoder.Encode( TUint32( msb ), curParamBits - KBitsInByte ); |
|
650 encoder.Encode( TUint32( lsb ), KBitsInByte ); |
|
651 } |
|
652 |
|
653 byteIndex += 2; |
|
654 } |
|
655 |
|
656 return KErrNone; |
|
657 } |
|
658 } |
|
659 |
|
660 // --------------------------------------------------------------------------- |
|
661 // CG729PayloadFormatWrite::ConfigurePayloadFormatL |
|
662 // Configure payload encoding parameters |
|
663 // --------------------------------------------------------------------------- |
|
664 // |
|
665 void CG729PayloadFormatWrite::ConfigurePayloadFormatL( |
|
666 const TDesC8& aConfigParams, |
|
667 CMccRtpMediaClock& aClock ) |
|
668 { |
|
669 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
|
670 RDebug::Print( _L("CG729PayloadFormatWrite::ConfigurePayloadFormatL IN") ); |
|
671 #endif |
|
672 __ASSERT_ALWAYS( aConfigParams.Size() == sizeof( TMccCodecInfo ), |
|
673 User::Leave( KErrArgument ) ); |
|
674 |
|
675 TMccCodecInfoBuffer infoBuffer; |
|
676 infoBuffer.Copy( aConfigParams ); |
|
677 |
|
678 if ( !infoBuffer().iIsUpdate ) |
|
679 { |
|
680 iCInfo = infoBuffer(); |
|
681 iRtpMediaClock = &aClock; |
|
682 iKey = iRtpMediaClock->RegisterMediaFormat( KG729SampleRate ,iCInfo.iHwFrameTime ); |
|
683 |
|
684 iCInfo.iHwFrameTime = KG729FrameTimeInMs; |
|
685 iFramesPerPacket = iCInfo.iPtime / iCInfo.iHwFrameTime; |
|
686 iCInfo.iFrameSize = KG729FrameSize10ms; |
|
687 iFrameTimeInterval = TInt64( iCInfo.iHwFrameTime * TInt8( iFramesPerPacket ) ); |
|
688 |
|
689 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
|
690 RDebug::Print( _L( "CG729PayloadFormatWrite::ConfigurePayloadFormatL - FramesPerPacket: %d, FrameSize: %d" ), iFramesPerPacket, iCInfo.iFrameSize ); |
|
691 #endif |
|
692 |
|
693 if ( EGenRedUsed == iCInfo.iAlgoUsed ) |
|
694 { |
|
695 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
|
696 RDebug::Print( _L("CG729PayloadFormatWrite::ConfigurePayloadFormatL, RED LEVEL: %d"), |
|
697 iCInfo.iRedundancyCount ); |
|
698 #endif |
|
699 |
|
700 CPayloadFormatWrite* redEncoder |
|
701 = static_cast<CMccRedPayloadWrite*>( iClip ); |
|
702 |
|
703 TMccRedPayloadWriteConfig config; |
|
704 config.iRedBlockCount = iCInfo.iRedundancyCount; |
|
705 config.iMaxPayloadSize = iCInfo.iFrameSize * iFramesPerPacket; |
|
706 config.iNumOfEncodings = 1; |
|
707 config.iRedPayloadType = iCInfo.iRedundantPayload; |
|
708 config.InitPayloadTypes(); |
|
709 config.iEncPayloadTypes[0] = iCInfo.iPayloadType; |
|
710 TMccRedPayloadWritePckg pckg( config ); |
|
711 redEncoder->ConfigurePayloadFormatL( pckg, *iRtpMediaClock ); |
|
712 } |
|
713 } |
|
714 else |
|
715 { |
|
716 UpdateConfigurationL( infoBuffer() ); |
|
717 } |
|
718 |
|
719 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
|
720 RDebug::Print ( _L ( "CG729PayloadFormatWrite::ConfigurePayloadFormatL OUT" ) ); |
|
721 #endif |
|
722 } |
|
723 |
|
724 // ----------------------------------------------------------------------------- |
|
725 // CG729PayloadFormatWrite::UpdateConfigurationL |
|
726 // Update payload encoding parameters |
|
727 // ----------------------------------------------------------------------------- |
|
728 // |
|
729 void CG729PayloadFormatWrite::UpdateConfigurationL( const TMccCodecInfo& aCodecInfo ) |
|
730 { |
|
731 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
|
732 RDebug::Print( _L("CG729PayloadFormatWrite::UpdateConfigurationL IN") ); |
|
733 #endif |
|
734 |
|
735 iCInfo.iPtime = aCodecInfo.iPtime; |
|
736 iCInfo.iPayloadType = aCodecInfo.iPayloadType; |
|
737 iFramesPerPacket = iCInfo.iPtime / iCInfo.iHwFrameTime; |
|
738 iFrameTimeInterval = TInt64( iCInfo.iHwFrameTime * TInt8( iFramesPerPacket ) ); |
|
739 |
|
740 // Allocate buffer for data transfer between |
|
741 // FormatWrite - MDataSink AND FormatWrite - redundancy payload encoder |
|
742 delete iSinkBuffer; |
|
743 iSinkBuffer = NULL; |
|
744 iSinkBuffer = CMMFDataBuffer::NewL( iCInfo.iFrameSize * iFramesPerPacket ); |
|
745 |
|
746 // Start a new cycle of frame collecting |
|
747 iFrameIndex = 0; |
|
748 |
|
749 #ifdef TRACE_G729_PAYLOAD_FORMAT_WRITE |
|
750 RDebug::Print( _L("CG729PayloadFormatWrite::UpdateConfigurationL OUT") ); |
|
751 #endif |
|
752 } |
|
753 // ========================== OTHER EXPORTED FUNCTIONS ========================= |
|
754 |
|
755 // End of File |