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1 /* |
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2 * Copyright (c) 2005 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: AVC Payload Format Write .. Payloadizes incoming frames into RTP packets |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 |
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21 |
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22 |
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23 // INCLUDE FILES |
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24 #include <e32base.h> |
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25 #include <mmf/common/mmffourcc.h> |
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26 #include <sysutil.h> |
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27 #include "avcpayloadformatwrite.h" |
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28 #include "mccrtpdatasink.h" |
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29 #include "mccinternaldef.h" |
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30 #include "mmcccodecavc.h" |
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31 #include "avcpayloadformatlogs.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 // ----------------------------------------------------------------------------- |
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40 // CAvcPayloadFormatWrite::CAvcPayloadFormatWrite |
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41 // |
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42 // CAvcPayloadFormatWrite default constructor, can NOT contain any code, |
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43 // that might leave |
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44 // Phase #1 of 2-phase constructor |
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45 // ----------------------------------------------------------------------------- |
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46 // |
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47 CAvcPayloadFormatWrite::CAvcPayloadFormatWrite ( ) |
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48 { |
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49 iFrameTimeInterval = 0; |
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50 iSourceBuffer = NULL; |
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51 } |
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52 |
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53 // ----------------------------------------------------------------------------- |
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54 // CAvcPayloadFormatWrite::NewL |
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55 // |
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56 // Two-phased constructor. |
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57 // Static function for creating and constructing an instance of the AVC formatter. |
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58 // |
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59 // Returns: CAvcPayloadFormatWrite* : pointer to created instance |
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60 // ----------------------------------------------------------------------------- |
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61 // |
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62 CAvcPayloadFormatWrite* CAvcPayloadFormatWrite::NewL( MDataSink* aSink ) |
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63 { |
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64 CAvcPayloadFormatWrite* self = new ( ELeave ) CAvcPayloadFormatWrite; |
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65 CleanupStack::PushL( self ); |
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66 self->ConstructL( aSink ); |
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67 CleanupStack::Pop(); |
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68 return self; |
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69 } |
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70 |
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71 // ----------------------------------------------------------------------------- |
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72 // CAvcPayloadFormatWrite::ConstructL |
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73 // |
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74 // Symbian 2nd phase constructor can leave. |
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75 // Phase #2 of 2-phase constructor |
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76 // Initializes the Encoder State Machine and Encoder |
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77 // Parameters: |
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78 // aSink : data sink |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 void CAvcPayloadFormatWrite::ConstructL( MDataSink* aSink ) |
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82 { |
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83 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::ConstructL") |
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84 |
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85 __ASSERT_ALWAYS( aSink, User::Leave ( KErrArgument ) ); |
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86 |
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87 // Set data sink |
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88 iClip = aSink; |
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89 |
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90 iIsRtpSink = ( KMccRtpSinkUid == iClip->DataSinkType() ); |
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91 |
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92 // Initialize state machine |
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93 iStateMachine = CFormatEncodeStateMachine::NewL( this ); |
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94 iStateMachine->ChangeState( EEncodeIdle ); |
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95 iCurDataSink = aSink; |
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96 |
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97 iEncoder = CRFC3984Encode::NewL(); |
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98 |
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99 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::ConstructL, exit") |
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100 } |
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101 |
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102 |
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103 // ----------------------------------------------------------------------------- |
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104 // CAvcPayloadFormatWrite::~CAvcPayloadFormatWrite |
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105 // |
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106 // Destructor. |
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107 // ----------------------------------------------------------------------------- |
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108 // |
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109 CAvcPayloadFormatWrite::~CAvcPayloadFormatWrite ( ) |
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110 { |
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111 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::~CAvcPayloadFormatWrite") |
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112 |
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113 delete iSourceBuffer; |
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114 delete iSinkBuffer; |
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115 delete iStateMachine; |
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116 delete iEncoder; |
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117 |
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118 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::~CAvcPayloadFormatWrite, exit") |
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119 } |
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120 |
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121 // ----------------------------------------------------------------------------- |
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122 // CAvcPayloadFormatWrite::SetPayloadType |
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123 // Set PayloadType |
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124 // ----------------------------------------------------------------------------- |
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125 // |
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126 void CAvcPayloadFormatWrite::SetPayloadType( TUint8 aPayloadType ) |
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127 { |
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128 iCInfo.iPayloadType = aPayloadType; |
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129 } |
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130 |
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131 |
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132 // ----------------------------------------------------------------------------- |
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133 // CAvcPayloadFormatWrite::FrameTimeInterval |
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134 // |
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135 // Return the frame time interval for the given media |
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136 // ----------------------------------------------------------------------------- |
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137 // |
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138 TTimeIntervalMicroSeconds CAvcPayloadFormatWrite::FrameTimeInterval( TMediaId aMediaId ) const |
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139 { |
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140 if ( aMediaId.iMediaType == KUidMediaTypeVideo ) |
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141 { |
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142 return iFrameTimeInterval; |
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143 } |
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144 else |
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145 { |
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146 return TTimeIntervalMicroSeconds( 0 ); |
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147 } |
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148 } |
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149 |
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150 // ----------------------------------------------------------------------------- |
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151 // CAvcPayloadFormatWrite::CreateSinkBufferL |
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152 // |
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153 // Create a source buffer for the given media and indicate in aReference if buffer |
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154 // is created. |
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155 // ----------------------------------------------------------------------------- |
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156 // |
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157 CMMFBuffer* CAvcPayloadFormatWrite::CreateSinkBufferL( TMediaId aMediaId, |
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158 TBool &aReference ) |
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159 { |
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160 |
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161 if ( aMediaId.iMediaType != KUidMediaTypeVideo ) |
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162 { |
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163 User::Leave( KErrNotSupported ); |
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164 } |
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165 |
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166 aReference = ETrue; |
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167 return CreateSinkBufferOfSizeL( iCInfo.iFrameSize ); |
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168 } |
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169 |
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170 // ----------------------------------------------------------------------------- |
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171 // CAvcPayloadFormatWrite::CreateSinkBufferOfSizeL |
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172 // |
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173 // Create a sink buffer of the given size. |
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174 // ----------------------------------------------------------------------------- |
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175 // |
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176 CMMFDataBuffer* CAvcPayloadFormatWrite::CreateSinkBufferOfSizeL( TUint aSize ) |
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177 { |
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178 // the buffer is created once and the component retains ownership in order to delete the resource |
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179 |
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180 if(NULL == iSourceBuffer) |
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181 { |
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182 //needs to create source buffer |
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183 iSourceBuffer = CMMFDataBuffer::NewL( aSize ); |
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184 iSourceBuffer->Data().FillZ( aSize ); |
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185 iSourceBuffer->SetRequestSizeL( aSize ); |
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186 } |
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187 |
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188 return iSourceBuffer; |
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189 } |
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190 |
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191 // ----------------------------------------------------------------------------- |
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192 // CAvcPayloadFormatWrite::SinkDataTypeCode |
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193 // |
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194 // Return the sink data type ( four CC code ) for the given media |
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195 // ----------------------------------------------------------------------------- |
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196 // |
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197 TFourCC CAvcPayloadFormatWrite::SinkDataTypeCode( TMediaId aMediaId ) |
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198 { |
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199 if ( aMediaId.iMediaType == KUidMediaTypeVideo ) |
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200 { |
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201 return iCInfo.iFourCC; |
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202 } |
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203 else |
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204 { |
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205 return TFourCC( ); //defaults to 'NULL' fourCC |
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206 } |
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207 } |
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208 |
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209 // ----------------------------------------------------------------------------- |
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210 // CAvcPayloadFormatWrite::SetSinkDataTypeCode |
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211 // |
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212 // Set the sink data type to the given four CC code for the given media |
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213 // ----------------------------------------------------------------------------- |
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214 // |
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215 TInt CAvcPayloadFormatWrite::SetSinkDataTypeCode( TFourCC aSinkFourCC, |
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216 TMediaId aMediaId ) |
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217 { |
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218 if ( aMediaId.iMediaType != KUidMediaTypeVideo ) |
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219 { |
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220 return KErrNotSupported; |
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221 } |
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222 else |
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223 { |
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224 iCInfo.iFourCC = aSinkFourCC; |
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225 } |
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226 |
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227 return KErrNone; |
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228 } |
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229 |
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230 // ----------------------------------------------------------------------------- |
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231 // CAvcPayloadFormatWrite::SinkThreadLogon |
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232 // |
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233 // Passes the logon command to the sink clip |
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234 // ----------------------------------------------------------------------------- |
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235 // |
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236 TInt CAvcPayloadFormatWrite::SinkThreadLogon( MAsyncEventHandler& aEventHandler ) |
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237 { |
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238 iCurDataSink->SinkThreadLogon( aEventHandler ); |
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239 return KErrNone; |
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240 } |
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241 |
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242 // ----------------------------------------------------------------------------- |
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243 // CAvcPayloadFormatWrite::SinkThreadLogoff |
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244 // |
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245 // Log out of the sink thread. |
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246 // ----------------------------------------------------------------------------- |
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247 // |
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248 void CAvcPayloadFormatWrite::SinkThreadLogoff ( ) |
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249 { |
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250 iCurDataSink->SinkThreadLogoff( ); |
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251 } |
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252 |
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253 // ----------------------------------------------------------------------------- |
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254 // CAvcPayloadFormatWrite::ProcessFramesL |
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255 // |
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256 // Packetize the AVC frames received from AVC codec and deliver the packets. |
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257 // The AVC frames are stored in "iSourceBuffer". |
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258 // return value - Current talk spurt finished, ETrue. Otherwise, EFalse |
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259 // ----------------------------------------------------------------------------- |
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260 // |
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261 TBool CAvcPayloadFormatWrite::ProcessFramesL( ) |
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262 { |
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263 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::ProcessFramesL") |
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264 |
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265 __ASSERT_ALWAYS( iSourceBuffer, User::Leave( KErrNotReady ) ); |
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266 |
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267 TInt nalCount = 0; |
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268 TUint32 markerBit = 0; |
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269 TDes8& srcDes = iSourceBuffer->Data(); |
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270 HBufC8* bufPtr = NULL; |
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271 TInt count = 0; |
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272 TBool retVal = EFalse; |
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273 |
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274 if ( !iSinkBuffer ) |
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275 { |
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276 __AVCPLFORMAT_CONTROLL( |
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277 "CAvcPayloadFormatWrite::ProcessFramesL, sink not ready, exit") |
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278 return retVal; |
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279 } |
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280 |
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281 // Get timestamp to RTP header. conversion to 90kHz clock |
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282 iRtpSendHeader.iTimestamp = iSourceBuffer->TimeToPlay().Int64() / 100 * 9; |
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283 |
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284 iEncoder->PayloadizeFrameL( srcDes, iRtpSendHeader.iTimestamp, markerBit, nalCount ); |
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285 |
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286 for ( count = 0; count < nalCount; count++ ) |
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287 { |
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288 __AVCPLFORMAT_CONTROLL("looping") |
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289 |
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290 // getting data |
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291 bufPtr = iEncoder->GetNalUnitsInOrder( count ); |
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292 User::LeaveIfNull( bufPtr ); |
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293 TPtr8 ptr = bufPtr->Des(); |
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294 |
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295 // copying data to sink |
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296 TDes8& dataDes = iSinkBuffer->Data(); |
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297 |
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298 dataDes.Copy( ptr.Ptr(), ptr.Length() ); |
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299 |
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300 // filling RTP Header structure |
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301 |
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302 iSinkBuffer->SetFrameNumber( iSourceBuffer->FrameNumber() + iSeqNumIncrementer ); |
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303 |
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304 // Setting marker bit only for last packet if more than one NAL unit |
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305 // for same ts, marker bit is never set for sps or pps |
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306 if ( nalCount > 1 && ( count != nalCount-1 ) ) |
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307 { |
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308 iRtpSendHeader.iMarker = 0; |
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309 |
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310 // If frame is divided in several packets, sequence numbers of following |
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311 // packets have to be modified |
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312 iSeqNumIncrementer++; |
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313 } |
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314 else if ( TMccCodecInfo::IsAvcPpsOrSpsData( ptr, ETrue ) ) |
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315 { |
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316 iRtpSendHeader.iMarker = 0; |
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317 } |
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318 else |
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319 { |
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320 iRtpSendHeader.iMarker = 1; |
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321 } |
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322 |
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323 iRtpSendHeader.iPayloadType = iCInfo.iPayloadType; // as per configured |
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324 |
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325 if ( iIsRtpSink ) |
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326 { |
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327 CMccRtpDataSink* rtpSink = static_cast<CMccRtpDataSink*>( iCurDataSink ); |
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328 rtpSink->EmptyBufferL( iSinkBuffer, this, iMediaId, iRtpSendHeader ); |
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329 } |
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330 else |
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331 { |
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332 iSinkBuffer->SetTimeToPlay( iRtpSendHeader.iTimestamp ); |
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333 iSinkBuffer->SetLastBuffer( iRtpSendHeader.iMarker ); |
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334 iCurDataSink->EmptyBufferL( iSinkBuffer, this, iMediaId ); |
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335 } |
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336 } |
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337 |
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338 // this clears the buffers in the encoder filled with data, necessary to do this |
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339 iEncoder->ClearNalBuffers(); |
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340 |
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341 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::ProcessFramesL, exit") |
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342 // probably it always returns false because in TRUE case, S/M goes IDLE, |
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343 // which is not desired in video |
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344 return retVal; |
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345 } |
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346 |
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347 // ----------------------------------------------------------------------------- |
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348 // CAvcPayloadFormatWrite::EmptyBufferL |
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349 // |
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350 // Empty the given source buffer by formatting the AVC frames into RTP payload. |
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351 // ----------------------------------------------------------------------------- |
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352 // |
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353 void CAvcPayloadFormatWrite::EmptyBufferL( CMMFBuffer* aBuffer, |
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354 MDataSource* aSupplier, |
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355 TMediaId aMediaId ) |
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356 { |
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357 |
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358 if ( aMediaId.iMediaType != KUidMediaTypeVideo ) |
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359 { |
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360 User::Leave( KErrNotSupported ); |
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361 } |
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362 |
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363 // MMF buffer must never be NULL |
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364 __ASSERT_ALWAYS (aBuffer, User::Leave(KErrArgument)); |
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365 |
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366 // Make sure that the very buffer is passed on, which we created once... |
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367 // This is necessary to avoid double-deletion problems etc. |
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368 __ASSERT_ALWAYS (aBuffer == iSourceBuffer, User::Leave(KErrArgument)); |
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369 |
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370 // if same buffer is passed then no need to save the pointer; we already have it |
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371 |
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372 // Save source buffer parameters and change the state. |
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373 iDataPath = aSupplier; |
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374 iMediaId = aMediaId; |
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375 |
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376 // we request S/M to call our EmptySourceBufferL() function |
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377 iStateMachine->ChangeState( EEmptySourceBuffer ); |
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378 |
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379 } |
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380 |
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381 // ----------------------------------------------------------------------------- |
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382 // CAvcPayloadFormatWrite::EmptySourceBufferL |
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383 // |
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384 // Empty the given source buffer by formatting the AMR frames into RTP payload. |
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385 // Source buffer is given in "iSourceBuffer". |
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386 // Called by the state machine. |
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387 // ----------------------------------------------------------------------------- |
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388 // |
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389 void CAvcPayloadFormatWrite::EmptySourceBufferL( ) |
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390 { |
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391 |
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392 if ( this->ProcessFramesL( ) ) |
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393 { |
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394 // Current talk spurt is finished. Either last buffer |
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395 iStateMachine->ChangeState( EEncodeIdle ); |
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396 } |
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397 else |
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398 { |
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399 // Just one step in a talk spurt |
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400 iStateMachine->ChangeState( ESourceBufferEmptied ); |
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401 } |
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402 } |
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403 |
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404 // ----------------------------------------------------------------------------- |
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405 // CAvcPayloadFormatWrite::SourceBufferEmptiedL |
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406 // |
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407 // Hanlde the event that source buffer has been emptied. |
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408 // Source buffer is given in "iSourceBuffer". |
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409 // Called by the state machine. |
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410 // ----------------------------------------------------------------------------- |
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411 // |
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412 void CAvcPayloadFormatWrite::SourceBufferEmptiedL( ) |
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413 { |
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414 __ASSERT_ALWAYS( iDataPath, User::Leave( KErrNotReady ) ); |
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415 iDataPath->BufferEmptiedL( iSourceBuffer ); |
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416 } |
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417 |
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418 // ----------------------------------------------------------------------------- |
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419 // CAvcPayloadFormatWrite::BufferEmptiedL |
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420 // |
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421 // ----------------------------------------------------------------------------- |
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422 // |
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423 void CAvcPayloadFormatWrite::BufferEmptiedL( CMMFBuffer* /*aBuffer*/ ) |
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424 { |
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425 // We're using synchronous EmptyBufferL( aBuffer ) function call to RTP Sink. |
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426 // The aBuffer is ready to be used again when the EmptyBufferL returns back. |
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427 // So BufferEmptiedL( aBuffer ) is not really used. |
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428 } |
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429 |
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430 // ----------------------------------------------------------------------------- |
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431 // CAvcPayloadFormatWrite::Duration |
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432 // |
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433 // Return the clip duration for the given media. Returns a big value, |
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434 // which is not usable since this function is not being used for video. |
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435 // The return value should be ignored. |
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436 // ----------------------------------------------------------------------------- |
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437 // |
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438 TTimeIntervalMicroSeconds CAvcPayloadFormatWrite::Duration( TMediaId /*aMediaType*/ ) const |
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439 { |
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440 return TTimeIntervalMicroSeconds( 1000000000 ); |
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441 } |
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442 |
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443 |
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444 // ----------------------------------------------------------------------------- |
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445 // CAvcPayloadFormatWrite::CancelUlRequest |
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446 // Cancel UL Request |
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447 // ----------------------------------------------------------------------------- |
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448 // |
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449 void CAvcPayloadFormatWrite::CancelUlRequest( ) |
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450 { |
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451 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::CancelUlRequest") |
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452 |
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453 iStateMachine->Cancel( ); |
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454 iStateMachine->ChangeState( EEncodeIdle ); |
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455 |
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456 // Reset the payload buffer |
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457 if ( iSinkBuffer ) |
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458 { |
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459 TDes8& dataDes = iSinkBuffer->Data(); |
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460 dataDes.SetLength( 0 ); |
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461 } |
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462 } |
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463 |
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464 // ----------------------------------------------------------------------------- |
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465 // CAvcPayloadFormatWrite::SinkPrimeL( ) |
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466 // Primes sink |
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467 // ----------------------------------------------------------------------------- |
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468 // |
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469 void CAvcPayloadFormatWrite::SinkPrimeL( ) |
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470 { |
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471 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::SinkPrimeL") |
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472 |
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473 iCurDataSink->SinkPrimeL(); |
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474 |
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475 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::SinkPrimeL, exit") |
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476 } |
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477 |
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478 // ----------------------------------------------------------------------------- |
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479 // CAvcPayloadFormatWrite::SinkPlayL( ) |
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480 // Plays sink |
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481 // ----------------------------------------------------------------------------- |
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482 // |
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483 void CAvcPayloadFormatWrite::SinkPlayL( ) |
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484 { |
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485 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::SinkPlayL") |
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486 |
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487 // Allocate buffer for data transfer between |
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488 // FormatWrite - MDataSink AND FormatWrite - redundancy payload encoder |
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489 |
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490 delete iSinkBuffer; |
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491 iSinkBuffer = NULL; |
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492 iSinkBuffer = CMMFDataBuffer::NewL( iCInfo.iFrameSize ); |
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493 |
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494 // Initialize payload encoder |
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495 TDes8& dataDes = iSinkBuffer->Data(); |
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496 dataDes.SetLength( 0 ); // for first packet length |
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497 |
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498 iSinkBuffer->SetLastBuffer( EFalse ); |
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499 |
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500 iCurDataSink->SinkPlayL(); |
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501 |
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502 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::SinkPlayL, exit") |
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503 } |
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504 |
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505 // ----------------------------------------------------------------------------- |
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506 // CAvcPayloadFormatWrite::SinkPauseL( ) |
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507 // Pauses sink |
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508 // ----------------------------------------------------------------------------- |
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509 // |
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510 void CAvcPayloadFormatWrite::SinkPauseL( ) |
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511 { |
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512 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::SinkPauseL") |
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513 |
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514 iCurDataSink->SinkPauseL( ); |
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515 |
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516 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::SinkPauseL, exit") |
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517 } |
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518 |
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519 // ----------------------------------------------------------------------------- |
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520 // CAvcPayloadFormatWrite::SinkStopL( ) |
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521 // Stops sink |
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522 // ----------------------------------------------------------------------------- |
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523 // |
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524 void CAvcPayloadFormatWrite::SinkStopL( ) |
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525 { |
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526 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::SinkStopL") |
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527 |
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528 if ( EEmptySourceBuffer == iStateMachine->CurrentState( ) ) |
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529 { |
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530 return; |
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531 } |
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532 |
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533 // Stop state machine |
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534 CancelUlRequest( ); |
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535 |
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536 iCurDataSink->SinkStopL( ); |
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537 |
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538 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::SinkStopL, exit") |
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539 } |
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540 |
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541 // ----------------------------------------------------------------------------- |
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542 // CAvcPayloadFormatWrite::ConfigurePayloadFormatL |
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543 // Configure payload encoding parameters. |
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544 // ----------------------------------------------------------------------------- |
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545 // |
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546 void CAvcPayloadFormatWrite::ConfigurePayloadFormatL( |
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547 const TDesC8& aConfigParams, |
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548 CMccRtpMediaClock& /*aClock*/ ) |
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549 { |
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550 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::ConfigurePayloadFormatL") |
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551 |
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552 if ( aConfigParams.Size() == sizeof( TMccCodecInfo ) ) |
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553 { |
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554 TMccCodecInfoBuffer infoBuffer; |
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555 infoBuffer.Copy( aConfigParams ); |
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556 iCInfo = infoBuffer(); |
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557 |
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558 // use values passed in to set parameter variables |
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559 __AVCPLFORMAT_CONTROLL_INT1( "packetization mode:", iCInfo.iCodecMode ) |
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560 __ASSERT_ALWAYS( iCInfo.iCodecMode == KAvcFormatModeSingleNal || |
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561 iCInfo.iCodecMode == KAvcFormatModeNonInterleaved, |
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562 User::Leave( KErrNotSupported ) ); |
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563 |
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564 __ASSERT_ALWAYS( iCInfo.iPayloadType < KMccPayloadTypeMax, |
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565 User::Leave( KErrArgument ) ); |
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566 |
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567 __ASSERT_ALWAYS( iCInfo.iFrameSize > 0, User::Leave( KErrArgument ) ); |
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568 __ASSERT_ALWAYS( iCInfo.iMTUSize > 0, User::Leave( KErrArgument ) ); |
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569 |
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570 iEncoder->SetPacketizationMode( iCInfo.iCodecMode ); |
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571 |
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572 iEncoder->SetFrameRate( static_cast<TInt>( iCInfo.iFramerate ) ); |
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573 |
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574 iEncoder->SetMTUSize( iCInfo.iMTUSize ); |
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575 } |
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576 else |
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577 { |
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578 User::Leave( KErrArgument ); |
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579 } |
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580 |
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581 __AVCPLFORMAT_CONTROLL("CAvcPayloadFormatWrite::ConfigurePayloadFormatL, exit") |
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582 } |
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583 |
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584 // ----------------------------------------------------------------------------- |
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585 |