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1 /* |
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2 * Copyright (c) 2004-2008 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 ILBC 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 "ilbcpayloadformatwrite.h" |
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24 #include "mccrtpdatasink.h" |
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25 #include "ilbcpayloadformatutil.h" |
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26 #include "mccuids.hrh" |
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27 #include "mccdef.h" |
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28 #include "mccinternaldef.h" |
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29 #include "mccrtpmediaclock.h" |
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30 #include "mccredpayloadwrite.h" |
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31 |
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32 // MACROS |
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33 #ifdef _DEBUG |
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34 #define TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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35 #endif |
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36 |
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37 // ============================= LOCAL FUNCTIONS =============================== |
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38 |
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39 // ============================ MEMBER FUNCTIONS =============================== |
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40 |
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41 |
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42 // ----------------------------------------------------------------------------- |
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43 // CIlbcPayloadFormatWrite::CIlbcPayloadFormatWrite |
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44 // C++ default constructor can NOT contain any code, that |
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45 // might leave. |
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46 // ----------------------------------------------------------------------------- |
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47 // |
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48 CIlbcPayloadFormatWrite::CIlbcPayloadFormatWrite() |
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49 { |
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50 |
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51 }; |
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52 |
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53 // ----------------------------------------------------------------------------- |
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54 // CIlbcPayloadFormatWrite::ConstructL |
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55 // Symbian 2nd phase constructor can leave. |
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56 // ----------------------------------------------------------------------------- |
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57 // |
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58 void CIlbcPayloadFormatWrite::ConstructL( MDataSink* aSink ) |
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59 { |
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60 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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61 RDebug::Print( _L("CIlbcPayloadFormatWrite::ConstructL") ); |
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62 #endif |
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63 |
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64 __ASSERT_ALWAYS( aSink, User::Leave( KErrArgument ) ); |
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65 |
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66 // Set default values |
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67 iFramesPerPacket = 1; |
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68 iFourCC.Set( KMccFourCCIdILBC ); |
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69 |
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70 // Set data sink |
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71 iIsRtpSink = ( KMccRtpSinkUid == aSink->DataSinkType() ); |
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72 TBool isRedEncoder |
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73 = ( TUid::Uid( KImplUidRedPayloadFormatEncode ) == aSink->DataSinkType() ); |
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74 |
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75 if ( iIsRtpSink ) |
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76 { |
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77 CMccRtpDataSink* tmp = static_cast<CMccRtpDataSink*>( aSink ); |
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78 iRtpDataSink = static_cast<MMccRtpDataSink*>( tmp ); |
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79 } |
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80 else if ( isRedEncoder ) |
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81 { |
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82 CMccRedPayloadWrite* tmp = static_cast<CMccRedPayloadWrite*>( aSink ); |
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83 iRtpDataSink = static_cast<MMccRtpDataSink*>( tmp ); |
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84 iIsRtpSink = ETrue; |
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85 } |
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86 else |
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87 { |
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88 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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89 RDebug::Print( _L("CG711PayloadFormatWrite::ConstructL, sink not RTP one") ); |
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90 #endif |
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91 } |
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92 |
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93 iClip = aSink; |
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94 |
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95 // Initialize state machine |
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96 iStateMachine = CFormatEncodeStateMachine::NewL( this ); |
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97 iStateMachine->ChangeState( EEncodeIdle ); |
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98 }; |
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99 |
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100 // ----------------------------------------------------------------------------- |
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101 // CIlbcPayloadFormatWrite::NewL |
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102 // Two-phased constructor. |
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103 // ----------------------------------------------------------------------------- |
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104 // |
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105 CIlbcPayloadFormatWrite* CIlbcPayloadFormatWrite::NewL( MDataSink* aSink ) |
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106 { |
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107 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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108 RDebug::Print( _L("CIlbcPayloadFormatWrite::NewL") ); |
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109 #endif |
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110 |
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111 __ASSERT_ALWAYS( aSink, User::Leave( KErrArgument ) ); |
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112 |
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113 CIlbcPayloadFormatWrite* self = new ( ELeave ) CIlbcPayloadFormatWrite(); |
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114 CleanupStack::PushL( self ); |
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115 self->ConstructL ( aSink ); |
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116 CleanupStack::Pop( self ); |
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117 return self; |
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118 }; |
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119 |
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120 // Destructor |
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121 CIlbcPayloadFormatWrite::~CIlbcPayloadFormatWrite() |
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122 { |
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123 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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124 RDebug::Print( _L("CIlbcPayloadFormatWrite::~CIlbcPayloadFormatWrite") ); |
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125 #endif |
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126 |
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127 if ( iStateMachine ) |
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128 { |
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129 iStateMachine->Cancel(); |
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130 } |
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131 |
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132 // Media clock is not owned |
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133 if ( iRtpMediaClock ) |
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134 { |
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135 iRtpMediaClock->UnregisterMediaFormat( iKey ); |
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136 } |
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137 |
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138 delete iSourceBuffer; |
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139 delete iSinkBuffer; |
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140 delete iStateMachine; |
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141 } |
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142 |
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143 // ----------------------------------------------------------------------------- |
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144 // CIlbcPayloadFormatWrite::SinkThreadLogon |
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145 // Passes the logon command to the sink clip |
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146 // ----------------------------------------------------------------------------- |
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147 // |
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148 TInt CIlbcPayloadFormatWrite::SinkThreadLogon( |
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149 MAsyncEventHandler& aEventHandler ) |
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150 { |
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151 iClip->SinkThreadLogon( aEventHandler ); |
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152 return KErrNone; |
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153 } |
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154 |
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155 // ----------------------------------------------------------------------------- |
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156 // CIlbcPayloadFormatWrite::SinkThreadLogoff |
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157 // Passes the logoff command to the sink clip |
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158 // ----------------------------------------------------------------------------- |
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159 // |
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160 void CIlbcPayloadFormatWrite::SinkThreadLogoff() |
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161 { |
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162 iClip->SinkThreadLogoff(); |
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163 } |
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164 |
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165 // ----------------------------------------------------------------------------- |
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166 // CIlbcPayloadFormatWrite::CreateSinkBufferL |
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167 // Create a sink buffer |
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168 // ----------------------------------------------------------------------------- |
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169 // |
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170 CMMFBuffer* CIlbcPayloadFormatWrite::CreateSinkBufferL( TMediaId aMediaId, |
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171 TBool &aReference ) |
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172 { |
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173 if ( KUidMediaTypeAudio != aMediaId.iMediaType ) |
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174 { |
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175 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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176 RDebug::Print (_L ("CIlbcPayloadFormatWrite::CreateSinkBufferL KErrNotSupported")); |
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177 #endif |
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178 |
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179 User::Leave( KErrNotSupported ); |
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180 return NULL; |
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181 } |
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182 else |
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183 { |
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184 aReference = ETrue; |
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185 |
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186 // Create buffer for data transfer between UL datapth and FormatWrite. |
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187 // 30ms mode buffers can be used also for 20ms mode. |
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188 if ( KiLBCBitrateWith30ms == iCInfo.iBitrate || |
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189 KiLBCBitrateWith20ms == iCInfo.iBitrate ) |
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190 { |
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191 return CreateSinkBufferOfSizeL( |
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192 KiLBCNumOfHeaderBytes + KiLBCFrameSize30ms ); |
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193 } |
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194 else |
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195 { |
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196 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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197 RDebug::Print (_L ("CIlbcPayloadFormatWrite::CreateSinkBufferL KErrNotReady")); |
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198 #endif |
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199 |
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200 User::Leave( KErrNotReady ); |
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201 return NULL; |
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202 } |
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203 } |
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204 } |
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205 |
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206 // ----------------------------------------------------------------------------- |
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207 // CIlbcPayloadFormatWrite::CreateSinkBufferOfSizeL |
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208 // Create a sink buffer of the given size. |
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209 // ----------------------------------------------------------------------------- |
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210 // |
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211 CMMFDataBuffer* CIlbcPayloadFormatWrite::CreateSinkBufferOfSizeL( TUint aSize ) |
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212 { |
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213 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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214 RDebug::Print( _L("CIlbcPayloadFormatWrite::CreateSinkBufferOfSizeL") ); |
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215 #endif |
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216 |
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217 // Needs to create source buffer |
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218 if ( !iSourceBuffer ) |
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219 { |
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220 iSourceBuffer = CMMFDataBuffer::NewL( aSize ); |
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221 iSourceBuffer->Data().FillZ( aSize ); |
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222 iSourceBuffer->SetRequestSizeL( aSize ); |
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223 } |
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224 |
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225 return iSourceBuffer; |
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226 } |
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227 |
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228 // ----------------------------------------------------------------------------- |
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229 // CIlbcPayloadFormatWrite::EmptyBufferL |
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230 // Empty the given source buffer |
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231 // ----------------------------------------------------------------------------- |
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232 // |
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233 void CIlbcPayloadFormatWrite::EmptyBufferL( CMMFBuffer* aBuffer, |
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234 MDataSource* aSupplier, TMediaId aMediaId ) |
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235 { |
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236 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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237 RDebug::Print( _L("CIlbcPayloadFormatWrite::EmptyBufferL aBuffer = 0x%x"), |
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238 aBuffer ); |
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239 #endif |
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240 |
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241 __ASSERT_ALWAYS( aBuffer, User::Leave( KErrArgument ) ); |
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242 __ASSERT_ALWAYS ( aBuffer == iSourceBuffer, User::Leave( KErrArgument ) ); |
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243 __ASSERT_ALWAYS( aSupplier, User::Leave( KErrArgument ) ); |
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244 __ASSERT_ALWAYS( KUidMediaTypeAudio == aMediaId.iMediaType, |
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245 User::Leave( KErrNotSupported ) ); |
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246 |
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247 // Save source buffer parameters and change the state. |
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248 iDataPath = aSupplier; |
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249 iMediaId = aMediaId; |
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250 iSourceBuffer = static_cast<CMMFDataBuffer*>( aBuffer ); |
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251 |
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252 if ( !iSinkBuffer ) |
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253 { |
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254 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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255 RDebug::Print( _L("CIlbcPayloadFormatWrite::EmptyBufferL, sink not ready!") ); |
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256 #endif |
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257 iStateMachine->ChangeState( ESourceBufferEmptied ); |
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258 return; |
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259 } |
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260 |
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261 TUint32 ts = 0; |
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262 User::LeaveIfError( iRtpMediaClock->GetTimeStamp( iKey, ts ) ); |
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263 |
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264 if ( iRtpMediaClock->TimeBasedIncrement() ) |
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265 { |
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266 iFirstPacketFinished = EFalse; |
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267 } |
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268 |
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269 if ( 0 == iFrameIndex ) |
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270 { |
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271 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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272 RDebug::Print( _L("CIlbcPayloadFormatWrite::EmptyBufferL, SetTimeToPlay") ); |
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273 #endif |
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274 |
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275 iSinkBuffer->SetTimeToPlay( TInt64( ts ) ); |
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276 iSinkBuffer->SetFrameNumber( aBuffer->FrameNumber() ); |
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277 } |
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278 else |
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279 { |
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280 iSourceBuffer->SetTimeToPlay( TInt64( ts ) ); |
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281 } |
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282 |
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283 iStateMachine->ChangeState( EEmptySourceBuffer ); |
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284 } |
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285 |
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286 // ----------------------------------------------------------------------------- |
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287 // CIlbcPayloadFormatWrite::SetSinkDataTypeCode |
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288 // Set the sink data type to the given four CC code for the given media |
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289 // ----------------------------------------------------------------------------- |
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290 // |
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291 TInt CIlbcPayloadFormatWrite::SetSinkDataTypeCode( TFourCC aSinkFourCC, |
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292 TMediaId aMediaId ) |
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293 { |
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294 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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295 RDebug::Print (_L ("CIlbcPayloadFormatWrite::SetSinkDataTypeCode()")); |
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296 #endif |
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297 |
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298 if ( KUidMediaTypeAudio != aMediaId.iMediaType ) |
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299 { |
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300 return KErrNotSupported; |
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301 } |
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302 |
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303 iFourCC = aSinkFourCC; |
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304 return KErrNone; |
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305 } |
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306 |
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307 // ----------------------------------------------------------------------------- |
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308 // CIlbcPayloadFormatWrite::SinkDataTypeCode |
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309 // Return the sink data type (four CC code) for the given media |
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310 // ----------------------------------------------------------------------------- |
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311 // |
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312 TFourCC CIlbcPayloadFormatWrite::SinkDataTypeCode( TMediaId aMediaId ) |
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313 { |
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314 if ( KUidMediaTypeAudio == aMediaId.iMediaType ) |
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315 { |
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316 return iFourCC; |
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317 } |
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318 else |
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319 { |
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320 return TFourCC(); //defaults to 'NULL' fourCC |
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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 // CIlbcPayloadFormatWrite::BufferEmptiedL |
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326 // Called after payload buffer is completely emptied by RtpDataSink. |
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327 // ----------------------------------------------------------------------------- |
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328 // |
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329 void CIlbcPayloadFormatWrite::BufferEmptiedL( CMMFBuffer* /*aBuffer*/ ) |
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330 { |
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331 |
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332 } |
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333 |
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334 // ----------------------------------------------------------------------------- |
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335 // CIlbcPayloadFormatWrite::NumChannels |
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336 // Returns number of channels |
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337 // ----------------------------------------------------------------------------- |
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338 // |
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339 TUint CIlbcPayloadFormatWrite::NumChannels() |
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340 { |
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341 return KMono; |
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342 } |
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343 |
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344 // ----------------------------------------------------------------------------- |
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345 // CIlbcPayloadFormatWrite::SampleRate |
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346 // Returns SampleRate |
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347 // ----------------------------------------------------------------------------- |
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348 // |
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349 TUint CIlbcPayloadFormatWrite::SampleRate() |
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350 { |
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351 return KiLBCSampleRate; |
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352 } |
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353 |
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354 // ----------------------------------------------------------------------------- |
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355 // CIlbcPayloadFormatWrite::SetSampleRate |
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356 // Set SampleRate |
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357 // ----------------------------------------------------------------------------- |
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358 // |
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359 TInt CIlbcPayloadFormatWrite::SetSampleRate( TUint aSampleRate ) |
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360 { |
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361 return ( KiLBCSampleRate == aSampleRate ) ? KErrNone : KErrNotSupported; |
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362 } |
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363 |
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364 // ----------------------------------------------------------------------------- |
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365 // CIlbcPayloadFormatWrite::FrameTimeInterval |
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366 // Return the frame time interval for the given media |
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367 // ----------------------------------------------------------------------------- |
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368 // |
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369 TTimeIntervalMicroSeconds CIlbcPayloadFormatWrite::FrameTimeInterval( |
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370 TMediaId aMediaId ) const |
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371 { |
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372 if ( KUidMediaTypeAudio == aMediaId.iMediaType ) |
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373 { |
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374 return iFrameTimeInterval; |
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375 } |
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376 else |
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377 { |
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378 return TTimeIntervalMicroSeconds( TInt64( 0 ) ); |
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379 } |
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380 } |
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381 |
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382 // ----------------------------------------------------------------------------- |
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383 // CIlbcPayloadFormatWrite::Duration |
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384 // Return the frame time interval for the given media |
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385 // ----------------------------------------------------------------------------- |
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386 // |
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387 TTimeIntervalMicroSeconds CIlbcPayloadFormatWrite::Duration( |
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388 TMediaId /*aMediaType*/) const |
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389 { |
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390 return TTimeIntervalMicroSeconds( TInt64( 0 ) ); |
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391 } |
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392 |
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393 |
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394 // ----------------------------------------------------------------------------- |
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395 // CIlbcPayloadFormatWrite::EmptySourceBufferL |
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396 // Empty the given sourcebuffer |
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397 // Sourcebuffer is given in iSourceBuffer |
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398 // Called by statemachine |
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399 // ----------------------------------------------------------------------------- |
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400 // |
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401 void CIlbcPayloadFormatWrite::EmptySourceBufferL() |
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402 { |
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403 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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404 RDebug::Print( _L("CIlbcPayloadFormatWrite::EmptySourceBufferL - SIZE OF SRC BUF: %d"), |
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405 iSourceBuffer->Data().Size() ); |
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406 #endif |
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407 |
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408 TPtrC8 audioFrame( iSourceBuffer->Data().Mid( KiLBCNumOfHeaderBytes ) ); |
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409 TPtrC8 frameHeader = iSourceBuffer->Data().Left( KiLBCNumOfHeaderBytes ); |
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410 TDes8& destDes = iSinkBuffer->Data(); |
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411 |
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412 if ( audioFrame.Size() > destDes.MaxSize() - destDes.Size() || !frameHeader.Length() ) |
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413 { |
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414 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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415 RDebug::Print( _L("CIlbcPayloadFormatWrite::EmptySourceBufferL \ |
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416 AUDIOFRAME DOES NOT FIT TO SINK BUF") ); |
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417 RDebug::Print( _L("%d > %d || !%d"), audioFrame.Size(), destDes.MaxSize()-destDes.Size(), |
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418 !frameHeader.Length() ); |
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419 #endif |
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420 } |
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421 else |
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422 { |
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423 if ( KAudioFrameHeaderByte == frameHeader[0] ) |
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424 { |
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425 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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426 RDebug::Print( _L("CIlbcPayloadFormatWrite::EmptySourceBufferL AUDIO FRAME") ); |
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427 #endif |
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428 if ( iCNModeON ) |
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429 { |
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430 iCNModeON = EFalse; |
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431 iFirstPacketFinished = EFalse; |
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432 } |
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433 |
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434 destDes.Append( audioFrame ); |
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435 iFrameIndex++; |
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436 } |
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437 else if ( KCNoiseFrameHeaderByte == frameHeader[0] ) |
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438 { |
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439 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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440 RDebug::Print( _L("CIlbcPayloadFormatWrite::EmptySourceBufferL CNOISE FRAME") ); |
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441 #endif |
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442 if ( destDes.Size() ) |
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443 { |
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444 // Send audio frames first |
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445 DeliverPacketL( *iSinkBuffer ); |
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446 iSinkBuffer->SetTimeToPlay( iSourceBuffer->TimeToPlay() ); |
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447 } |
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448 |
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449 iCNModeON = ETrue; |
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450 destDes.Append( audioFrame ); |
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451 |
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452 // Only one comfort noise frame per RTP packet |
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453 iFrameIndex = iFramesPerPacket; |
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454 } |
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455 else |
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456 { |
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457 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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458 RDebug::Print( _L("CIlbcPayloadFormatWrite::EmptySourceBufferL NULL BIT RATE FRAME") ); |
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459 #endif |
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460 } |
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461 } |
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462 |
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463 if ( iFrameIndex == iFramesPerPacket ) |
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464 { |
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465 // Reset variables |
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466 iFrameIndex = 0; |
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467 this->DeliverPacketL( *iSinkBuffer ); |
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468 destDes.Zero(); |
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469 } |
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470 |
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471 iStateMachine->ChangeState( ESourceBufferEmptied ); |
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472 } |
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473 |
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474 // ----------------------------------------------------------------------------- |
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475 // CIlbcPayloadFormatWrite::DeliverPacketL |
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476 // Prepare the packet header and deliver the packet to the datasink. |
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477 // ----------------------------------------------------------------------------- |
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478 // |
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479 void CIlbcPayloadFormatWrite::DeliverPacketL( CMMFDataBuffer& aPayload ) |
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480 { |
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481 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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482 RDebug::Print( _L("CIlbcPayloadFormatWrite::DeliverPacketL - TSTAMP: %u"), |
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483 static_cast<TUint32>( aPayload.TimeToPlay().Int64() ) ); |
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484 #endif |
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485 |
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486 if ( !iClip ) |
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487 { |
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488 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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489 RDebug::Print( _L("CIlbcPayloadFormatWrite::DeliverPacketL - NO DATASINK") ); |
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490 #endif |
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491 User::Leave( KErrNotReady ); |
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492 } |
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493 |
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494 // Construct RTP header. |
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495 if ( !iFirstPacketFinished && !iCNModeON ) |
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496 { |
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497 iRtpSendHeader.iMarker = 1; |
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498 iFirstPacketFinished = ETrue; |
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499 } |
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500 else |
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501 { |
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502 iRtpSendHeader.iMarker = 0; |
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503 } |
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504 |
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505 if ( !iRtpDataSink ) |
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506 { |
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507 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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508 RDebug::Print( _L("CIlbcPayloadFormatWrite::DeliverPacketL - NO DATASINK") ); |
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509 #endif |
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510 User::Leave( KErrNotReady ); |
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511 } |
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512 |
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513 iRtpSendHeader.iTimestamp |
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514 = static_cast<TUint32>( aPayload.TimeToPlay().Int64() ); |
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515 |
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516 if ( iCNModeON ) |
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517 { |
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518 if ( iCInfo.iComfortNoiseGenerationPt != KPayloadTypeUndefined ) |
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519 { |
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520 iRtpSendHeader.iPayloadType = iCInfo.iComfortNoiseGenerationPt; |
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521 |
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522 if ( aPayload.Data().Size() ) |
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523 { |
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524 if ( iIsRtpSink ) |
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525 { |
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526 iRtpDataSink->EmptyBufferL( &aPayload, this, iMediaId, iRtpSendHeader ); |
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527 } |
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528 else |
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529 { |
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530 aPayload.SetLastBuffer( iRtpSendHeader.iMarker ); |
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531 iClip->EmptyBufferL( &aPayload, this, iMediaId ); |
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532 } |
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533 } |
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534 } |
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535 } |
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536 else |
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537 { |
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538 iRtpSendHeader.iPayloadType = iCInfo.iPayloadType; |
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539 |
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540 if ( aPayload.Data().Size() ) |
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541 { |
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542 if ( iIsRtpSink ) |
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543 { |
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544 iRtpDataSink->EmptyBufferL( &aPayload, this, iMediaId, iRtpSendHeader ); |
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545 } |
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546 else |
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547 { |
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548 aPayload.SetLastBuffer( iRtpSendHeader.iMarker ); |
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549 iClip->EmptyBufferL( &aPayload, this, iMediaId ); |
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550 } |
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551 } |
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552 |
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553 } |
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554 |
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555 // Reset the payload buffer -- only if previous EmptyBufferL() is a |
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556 // synchronous call |
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557 aPayload.Data().Zero(); |
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558 } |
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559 |
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560 // ----------------------------------------------------------------------------- |
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561 // CIlbcPayloadFormatWrite::SourceBufferEmptiedL |
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562 // Handle the event that sourcebuffer has been emptied. |
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563 // Sourcebuffer is given in "iSourceBuffer". |
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564 // Called by the statemachine. |
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565 // ----------------------------------------------------------------------------- |
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566 // |
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567 void CIlbcPayloadFormatWrite::SourceBufferEmptiedL() |
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568 { |
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569 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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570 RDebug::Print( _L("CIlbcPayloadFormatWrite::SourceBufferEmptiedL") ); |
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571 #endif |
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572 |
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573 iDataPath->BufferEmptiedL( iSourceBuffer ); |
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574 } |
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575 |
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576 // ----------------------------------------------------------------------------- |
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577 // CIlbcPayloadFormatWrite::SinkPrimeL |
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578 // Prime sink |
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579 // ----------------------------------------------------------------------------- |
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580 // |
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581 void CIlbcPayloadFormatWrite::SinkPrimeL() |
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582 { |
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583 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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584 RDebug::Print (_L ("CIlbcPayloadFormatWrite::SinkPrimeL()")); |
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585 #endif |
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586 |
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587 iClip->SinkPrimeL(); |
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588 } |
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589 |
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590 // ----------------------------------------------------------------------------- |
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591 // CIlbcPayloadFormatWrite::SinkPlayL |
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592 // Start playing |
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593 // ----------------------------------------------------------------------------- |
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594 // |
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595 void CIlbcPayloadFormatWrite::SinkPlayL() |
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596 { |
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597 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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598 RDebug::Print (_L ("CIlbcPayloadFormatWrite::SinkPlayL()")); |
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599 #endif |
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600 |
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601 // Allocate buffer for data transfer between |
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602 // FormatWrite - MDataSink AND FormatWrite - redundancy payload encoder |
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603 delete iSinkBuffer; |
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604 iSinkBuffer = NULL; |
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605 iSinkBuffer = CMMFDataBuffer::NewL( iCInfo.iFrameSize * iFramesPerPacket ); |
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606 |
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607 // Start state machine |
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608 iStateMachine->ChangeState( EEncodeIdle ); |
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609 // RTP Header marker-bit must be set to 1 when starting stream |
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610 iFirstPacketFinished = EFalse; |
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611 |
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612 // Start a new cycle of frame collecting |
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613 iFrameIndex = 0; |
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614 |
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615 if ( iSinkBuffer ) |
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616 { |
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617 iSinkBuffer->SetLastBuffer( EFalse ); |
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618 } |
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619 |
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620 iClip->SinkPlayL(); |
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621 } |
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622 |
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623 // ----------------------------------------------------------------------------- |
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624 // CIlbcPayloadFormatWrite::SinkPauseL |
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625 // Pause sink |
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626 // ----------------------------------------------------------------------------- |
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627 // |
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628 void CIlbcPayloadFormatWrite::SinkPauseL() |
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629 { |
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630 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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631 RDebug::Print( _L("CIlbcPayloadFormatWrite::SinkPauseL") ); |
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632 #endif |
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633 |
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634 iStateMachine->Cancel(); |
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635 iStateMachine->ChangeState( EEncodeIdle ); |
|
636 |
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637 iClip->SinkPauseL(); |
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638 } |
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639 |
|
640 // ----------------------------------------------------------------------------- |
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641 // CIlbcPayloadFormatWrite::SinkStopL |
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642 // Stop sink |
|
643 // ----------------------------------------------------------------------------- |
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644 // |
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645 void CIlbcPayloadFormatWrite::SinkStopL() |
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646 { |
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647 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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648 RDebug::Print( _L("CIlbcPayloadFormatWrite::SinkStopL") ); |
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649 #endif |
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650 |
|
651 // Stop state machine |
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652 iStateMachine->Cancel(); |
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653 iStateMachine->ChangeState( EEncodeIdle ); |
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654 iClip->SinkStopL(); |
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655 } |
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656 |
|
657 // ----------------------------------------------------------------------------- |
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658 // CIlbcPayloadFormatWrite::ConfigurePayloadFormatL |
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659 // Configure payload encoding parameters. |
|
660 // ----------------------------------------------------------------------------- |
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661 // |
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662 void CIlbcPayloadFormatWrite::ConfigurePayloadFormatL( const TDesC8& aConfigParams, |
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663 CMccRtpMediaClock& aClock ) |
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664 { |
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665 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
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666 RDebug::Print( _L("CIlbcPayloadFormatWrite::ConfigurePayloadFormatL IN") ); |
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667 #endif |
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668 __ASSERT_ALWAYS( aConfigParams.Size() == sizeof( TMccCodecInfo ), |
|
669 User::Leave( KErrArgument ) ); |
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670 |
|
671 iRtpMediaClock = &aClock; |
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672 |
|
673 TMccCodecInfoBuffer infoBuffer; |
|
674 infoBuffer.Copy( aConfigParams ); |
|
675 |
|
676 if ( !infoBuffer().iIsUpdate ) |
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677 { |
|
678 DoConfigurePayloadFormatL( infoBuffer() ); |
|
679 } |
|
680 else |
|
681 { |
|
682 UpdateConfigurationL( infoBuffer() ); |
|
683 } |
|
684 |
|
685 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
|
686 RDebug::Print( _L("CIlbcPayloadFormatWrite::ConfigurePayloadFormatL OUT") ); |
|
687 #endif |
|
688 } |
|
689 |
|
690 // ----------------------------------------------------------------------------- |
|
691 // CIlbcPayloadFormatWrite::UpdateConfigurationL |
|
692 // Update payload encoding parameters |
|
693 // ----------------------------------------------------------------------------- |
|
694 // |
|
695 void CIlbcPayloadFormatWrite::UpdateConfigurationL( const TMccCodecInfo& aCodecInfo ) |
|
696 { |
|
697 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
|
698 RDebug::Print( _L("CIlbcPayloadFormatWrite::UpdateConfigurationL") ); |
|
699 #endif |
|
700 |
|
701 iCInfo.iPayloadType = aCodecInfo.iPayloadType; |
|
702 |
|
703 if ( iCInfo.iMaxPtime != aCodecInfo.iMaxPtime || |
|
704 iCInfo.iPtime != aCodecInfo.iPtime || |
|
705 iCInfo.iHwFrameTime != aCodecInfo.iHwFrameTime || |
|
706 iCInfo.iBitrate != aCodecInfo.iBitrate || |
|
707 iCInfo.iComfortNoiseGenerationPt != aCodecInfo.iComfortNoiseGenerationPt ) |
|
708 { |
|
709 DoConfigurePayloadFormatL( aCodecInfo ); |
|
710 |
|
711 // Allocate buffer for data transfer between |
|
712 // FormatWrite - MDataSink AND FormatWrite - redundancy payload encoder |
|
713 delete iSinkBuffer; |
|
714 iSinkBuffer = NULL; |
|
715 iSinkBuffer = CMMFDataBuffer::NewL( iCInfo.iFrameSize * iFramesPerPacket ); |
|
716 |
|
717 // Start a new cycle of frame collecting |
|
718 iFrameIndex = 0; |
|
719 } |
|
720 |
|
721 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
|
722 RDebug::Print( _L("CIlbcPayloadFormatWrite::UpdateConfigurationL OUT") ); |
|
723 #endif |
|
724 } |
|
725 |
|
726 // ----------------------------------------------------------------------------- |
|
727 // CIlbcPayloadFormatWrite::DoConfigurePayloadFormatL |
|
728 // ----------------------------------------------------------------------------- |
|
729 // |
|
730 void CIlbcPayloadFormatWrite::DoConfigurePayloadFormatL( const TMccCodecInfo& aCodecInfo ) |
|
731 { |
|
732 __ASSERT_ALWAYS( aCodecInfo.iHwFrameTime != 0, User::Leave( KErrArgument ) ); |
|
733 |
|
734 iCInfo = aCodecInfo; |
|
735 iKey = iRtpMediaClock->RegisterMediaFormat( KiLBCSampleRate, iCInfo.iHwFrameTime ); |
|
736 |
|
737 if ( KiLBCBitrateWith20ms == iCInfo.iBitrate ) |
|
738 { |
|
739 iCInfo.iHwFrameTime = KiLBCFrameTime20ms; |
|
740 // Maximum number of frames in RTP payload |
|
741 iFramesPerPacket = iCInfo.iPtime / iCInfo.iHwFrameTime; |
|
742 iCInfo.iFrameSize = KiLBCFrameSize20ms; |
|
743 iFrameTimeInterval = TInt64( KiLBCFrameTime20ms * TUint8( iFramesPerPacket ) ); |
|
744 } |
|
745 else if ( KiLBCBitrateWith30ms == iCInfo.iBitrate ) |
|
746 { |
|
747 iCInfo.iHwFrameTime = KiLBCFrameTime30ms; |
|
748 // Maximum number of frames in RTP payload |
|
749 iFramesPerPacket = iCInfo.iPtime / iCInfo.iHwFrameTime; |
|
750 iCInfo.iFrameSize = KiLBCFrameSize30ms; |
|
751 iFrameTimeInterval = TInt64( KiLBCFrameTime30ms * TUint8( iFramesPerPacket ) ); |
|
752 } |
|
753 else |
|
754 { |
|
755 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
|
756 RDebug::Print( _L("CIlbcPayloadFormatWrite::ConfigurePayloadFormatL - BITRATE INVALID: %d"), iCInfo.iBitrate ); |
|
757 #endif |
|
758 User::Leave( KErrArgument ); |
|
759 } |
|
760 |
|
761 if ( EGenRedUsed == iCInfo.iAlgoUsed ) |
|
762 { |
|
763 #ifdef TRACE_ILBC_PAYLOAD_FORMAT_WRITE |
|
764 RDebug::Print( _L("CIlbcPayloadFormatWrite::ConfigurePayloadFormatL, RED LEVEL: %d"), |
|
765 iCInfo.iRedundancyCount ); |
|
766 #endif |
|
767 |
|
768 CPayloadFormatWrite* redEncoder |
|
769 = static_cast<CMccRedPayloadWrite*>( iClip ); |
|
770 |
|
771 TMccRedPayloadWriteConfig config; |
|
772 config.iRedBlockCount = iCInfo.iRedundancyCount; |
|
773 config.iMaxPayloadSize = iCInfo.iFrameSize * iFramesPerPacket; |
|
774 config.iNumOfEncodings = 1; |
|
775 config.iRedPayloadType = iCInfo.iRedundantPayload; |
|
776 config.InitPayloadTypes(); |
|
777 config.iEncPayloadTypes[0] = iCInfo.iPayloadType; |
|
778 TMccRedPayloadWritePckg pckg( config ); |
|
779 redEncoder->ConfigurePayloadFormatL( pckg, *iRtpMediaClock ); |
|
780 } |
|
781 } |
|
782 |
|
783 // ========================== OTHER EXPORTED FUNCTIONS ========================= |
|
784 |
|
785 // End of File |