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1 /* |
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2 * Copyright (c) 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: |
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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 @file |
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21 @internalComponent |
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22 */ |
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23 |
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24 #include "comxil3gpmuxeraudioinputport.h" |
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25 #include "comxil3gpmuxervideoinputport.h" |
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26 #include "c3gpmuxer.h" |
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27 #include "log.h" |
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28 #include <openmax/il/common/omxilcallbacknotificationif.h> |
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29 |
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30 _LIT(K3GPMuxerPanic, "C3GPMuxer"); |
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31 const TUint KAudioTimeScale = 44100; |
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32 static const TUint KThreadStackSize = 8192; // 8KB |
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33 const TInt KMaxBufferSize = 62400 * 2; |
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34 const TInt KMicroSecondsPerSecond = 1000000; |
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35 |
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36 |
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37 C3GPMuxer* C3GPMuxer::NewL(MOmxILCallbackNotificationIf& aCallbacks) |
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38 { |
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39 DEBUG_PRINTF(_L8("C3GPMuxer::NewL")); |
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40 C3GPMuxer* self = new (ELeave) C3GPMuxer(aCallbacks); |
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41 CleanupStack::PushL(self); |
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42 self->ConstructL(); |
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43 CleanupStack::Pop(self); |
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44 return self; |
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45 } |
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46 |
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47 C3GPMuxer::C3GPMuxer(MOmxILCallbackNotificationIf& aCallbacks): |
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48 CActive(EPriorityStandard), |
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49 iCallbacks(aCallbacks) |
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50 { |
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51 } |
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52 |
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53 void C3GPMuxer::ConstructL() |
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54 { |
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55 User::LeaveIfError(iVideoQueue.CreateLocal(KMaxVideoBuffers)); |
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56 iPartialFrame.CreateL(KMaxBufferSize); |
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57 User::LeaveIfError(iAudioQueue.CreateLocal(KMaxAudioBuffers)); |
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58 User::LeaveIfError(iRemoveQueue.CreateLocal(Max(KMaxVideoBuffers, KMaxAudioBuffers))); |
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59 User::LeaveIfError(iQueMutex.CreateLocal()); |
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60 |
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61 iComposer = C3GPCompose::NewL(); |
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62 } |
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63 |
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64 void C3GPMuxer::StartL(TBool aAudioPortEnabled, TBool aVideoPortEnabled) |
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65 { |
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66 DEBUG_PRINTF(_L8("C3GPMuxer::StartL")); |
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67 |
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68 iPaused = EFalse; |
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69 |
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70 if (!iThreadRunning) |
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71 { |
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72 iAudioPortEnabled = aAudioPortEnabled; |
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73 iVideoPortEnabled = aVideoPortEnabled; |
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74 |
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75 TBuf<40> threadName; |
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76 threadName.Format(_L("C3GPMuxerThread@%08X"), this); |
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77 |
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78 User::LeaveIfError(iThread.Create(threadName, ThreadEntryPoint, KThreadStackSize, NULL, this)); |
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79 |
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80 // start the thread and wait for it to start the active scheduler |
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81 TRequestStatus status; |
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82 iThread.Rendezvous(status); |
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83 iThread.Resume(); |
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84 User::WaitForRequest(status); |
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85 User::LeaveIfError(status.Int()); |
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86 } |
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87 else |
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88 { |
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89 // self complete |
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90 iQueMutex.Wait(); |
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91 if (!iRequestOutstanding) |
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92 { |
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93 TRequestStatus* statusPtr = &iStatus; |
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94 iThread.RequestComplete(statusPtr, KErrNone); |
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95 } |
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96 iQueMutex.Signal(); |
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97 } |
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98 } |
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99 |
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100 TInt C3GPMuxer::ThreadEntryPoint(TAny* aPtr) |
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101 { |
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102 CTrapCleanup* cleanup = CTrapCleanup::New(); |
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103 if(!cleanup) |
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104 { |
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105 return KErrNoMemory; |
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106 } |
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107 |
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108 // Call this objects clock initialisation routine |
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109 TRAPD(err, static_cast<C3GPMuxer*>(aPtr)->RunThreadL()); |
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110 delete cleanup; |
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111 return err; |
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112 } |
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113 |
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114 void C3GPMuxer::RunThreadL() |
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115 { |
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116 DEBUG_PRINTF(_L8("C3GPMuxer::RunThreadL")); |
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117 CActiveScheduler* sched = new (ELeave) CActiveScheduler; |
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118 CleanupStack::PushL(sched); |
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119 |
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120 CActiveScheduler::Install(sched); |
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121 CActiveScheduler::Add(this); |
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122 |
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123 if (iAudioPortEnabled) |
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124 { |
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125 iAudioQueue.NotifyDataAvailable(iStatus); |
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126 SetActive(); |
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127 iRequestOutstanding = ETrue; |
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128 } |
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129 else if (iVideoPortEnabled) |
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130 { |
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131 iVideoQueue.NotifyDataAvailable(iStatus); |
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132 SetActive(); |
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133 iRequestOutstanding = ETrue; |
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134 } |
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135 |
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136 iEndWaitAO = CEndWaitAO::NewL(); |
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137 |
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138 iThreadRunning = ETrue; |
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139 |
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140 iThread.Rendezvous(KErrNone); |
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141 |
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142 CActiveScheduler::Start(); |
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143 |
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144 HandleError(iComposer->Complete()); |
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145 iComposerOpened = EFalse; |
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146 |
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147 CleanupStack::PopAndDestroy(sched); |
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148 } |
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149 |
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150 C3GPMuxer::~C3GPMuxer() |
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151 { |
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152 DEBUG_PRINTF(_L8("C3GPMuxer::~C3GPMuxer")); |
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153 |
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154 if(iThreadRunning) |
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155 { |
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156 iThreadRunning = EFalse; |
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157 TRequestStatus logonStatus; |
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158 iThread.Logon(logonStatus); |
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159 |
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160 iEndWaitAO->Call(); |
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161 User::WaitForRequest(logonStatus); |
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162 |
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163 delete iEndWaitAO; |
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164 iEndWaitAO = NULL; |
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165 } |
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166 |
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167 iVideoQueue.Close(); |
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168 iPartialFrame.Close(); |
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169 iAudioQueue.Close(); |
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170 iRemoveQueue.Close(); |
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171 |
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172 delete iComposer; |
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173 |
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174 iThread.Close(); |
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175 iQueMutex.Close(); |
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176 } |
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177 |
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178 void C3GPMuxer::ProcessThisBufferL(OMX_BUFFERHEADERTYPE* aBufferHeader, TUint32 aPortIndex) |
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179 { |
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180 DEBUG_PRINTF3(_L8("C3GPMuxer::ProcessThisBufferL : aBufferHeader[%X]; aPortIndex[%u]"), aBufferHeader, aPortIndex); |
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181 __ASSERT_ALWAYS(aBufferHeader->nOffset + aBufferHeader->nFilledLen <= aBufferHeader->nAllocLen, User::Invariant()); |
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182 |
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183 if (aPortIndex == COmxIL3GPMuxer::EPortIndexAudioInput && iAudioPortEnabled) |
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184 { |
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185 User::LeaveIfError(iAudioQueue.Send(aBufferHeader)); |
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186 } |
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187 else if (aPortIndex == COmxIL3GPMuxer::EPortIndexVideoInput && iVideoPortEnabled) |
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188 { |
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189 User::LeaveIfError(iVideoQueue.Send(aBufferHeader)); |
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190 } |
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191 // FIXME buffer arrived on disabled port?? if we don't consider this an error why bother checking? |
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192 } |
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193 |
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194 void C3GPMuxer::FlushBuffers(TUint32 aPortIndex) |
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195 { |
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196 DEBUG_PRINTF2(_L8("C3GPMuxer::FlushBuffers : aPortIndex[%u]"), aPortIndex); |
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197 |
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198 __ASSERT_DEBUG(aPortIndex == OMX_ALL || aPortIndex < COmxIL3GPMuxer::EPortIndexMax, User::Invariant()); |
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199 |
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200 if (aPortIndex == OMX_ALL || aPortIndex < COmxIL3GPMuxer::EPortIndexMax) |
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201 { |
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202 iQueMutex.Wait(); |
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203 |
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204 if (aPortIndex == OMX_ALL) |
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205 { |
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206 for (TInt portIndex = 0; portIndex < COmxIL3GPMuxer::EPortIndexMax; ++portIndex) |
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207 { |
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208 DoFlushBuffers(portIndex); |
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209 } |
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210 } |
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211 else |
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212 { |
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213 DoFlushBuffers(aPortIndex); |
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214 } |
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215 |
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216 iQueMutex.Signal(); |
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217 } |
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218 } |
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219 |
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220 void C3GPMuxer::DoFlushBuffers(TUint32 aPortIndex) |
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221 { |
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222 DEBUG_PRINTF2(_L8("C3GPMuxer::DoFlushBuffers : aPortIndex[%u]"), aPortIndex); |
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223 |
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224 OMX_BUFFERHEADERTYPE* buffer = NULL; |
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225 switch(aPortIndex) |
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226 { |
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227 case COmxIL3GPMuxer::EPortIndexAudioInput: |
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228 { |
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229 if (iAudioBuffer) |
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230 { |
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231 ReturnBuffer(iAudioBuffer, aPortIndex); |
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232 } |
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233 |
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234 while(iAudioQueue.Receive(buffer) != KErrUnderflow) |
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235 { |
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236 ReturnBuffer(buffer, aPortIndex); |
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237 } |
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238 break; |
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239 } |
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240 case COmxIL3GPMuxer::EPortIndexVideoInput: |
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241 { |
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242 if (iCurrentVideoBuffer) |
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243 { |
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244 ReturnBuffer(iCurrentVideoBuffer, aPortIndex); |
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245 iCurrentVideoBuffer = NULL; |
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246 } |
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247 if (iNextVideoBuffer) |
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248 { |
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249 ReturnBuffer(iNextVideoBuffer, aPortIndex); |
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250 iNextVideoBuffer = NULL; |
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251 } |
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252 while(iVideoQueue.Receive(buffer) != KErrUnderflow) |
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253 { |
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254 ReturnBuffer(buffer, aPortIndex); |
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255 } |
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256 break; |
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257 } |
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258 default: |
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259 { |
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260 User::Panic(K3GPMuxerPanic, KErrArgument); |
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261 break; |
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262 } |
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263 } |
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264 } |
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265 |
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266 TBool C3GPMuxer::RemoveBuffer(OMX_BUFFERHEADERTYPE* aBufferHeader) |
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267 { |
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268 DEBUG_PRINTF2(_L8("C3GPMuxer::RemoveBuffer : aBufferHeader[%X]"), aBufferHeader); |
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269 iQueMutex.Wait(); |
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270 TBool found = EFalse; |
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271 |
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272 // check the current audio/video buffers first |
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273 if(aBufferHeader == iAudioBuffer) |
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274 { |
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275 iAudioBuffer = NULL; |
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276 found = ETrue; |
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277 } |
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278 |
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279 if(!found && aBufferHeader == iCurrentVideoBuffer) |
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280 { |
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281 iCurrentVideoBuffer = NULL; |
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282 found = ETrue; |
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283 } |
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284 if(!found && aBufferHeader == iNextVideoBuffer) |
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285 { |
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286 iNextVideoBuffer = NULL; |
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287 found = ETrue; |
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288 } |
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289 |
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290 if (!found) |
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291 { |
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292 found = RemoveFromQueue(iAudioQueue, aBufferHeader); |
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293 } |
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294 |
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295 if (!found) |
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296 { |
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297 found = RemoveFromQueue(iVideoQueue, aBufferHeader); |
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298 } |
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299 |
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300 iQueMutex.Signal(); |
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301 |
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302 return found; |
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303 } |
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304 |
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305 void C3GPMuxer::SetFilename(const HBufC* aFilename) |
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306 { |
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307 DEBUG_PRINTF(_L8("C3GPMuxer::SetFilename")); |
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308 iFilename = aFilename; |
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309 } |
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310 |
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311 void C3GPMuxer::SetAudioVideoProperties(OMX_U32& aFrameWidth, OMX_U32& aFrameHeight, |
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312 OMX_U32& aFramerate, OMX_U32& aBitRate, OMX_U32& /*aAudioFramerate*/) |
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313 { |
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314 DEBUG_PRINTF(_L8("C3GPMuxer::SetAudioVideoProperties")); |
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315 iVideoSize.iWidth = static_cast<TInt>(aFrameWidth); |
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316 iVideoSize.iHeight = static_cast<TInt>(aFrameHeight); |
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317 |
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318 iBitRate = aBitRate; |
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319 |
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320 CalculateVideoTimeScale(aFramerate); |
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321 } |
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322 |
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323 /** |
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324 Calculate video timescale and frame duration. |
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325 The video timescale is the nearest whole number multiple of the frame rate. |
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326 Where the frame rate includes more than 2 decimal places, it is rounded down |
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327 to 2 decimal places. This means the calculation is not wholly accurate in those |
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328 circumstances, but hopefully it is close enough. |
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329 */ |
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330 void C3GPMuxer::CalculateVideoTimeScale(OMX_U32& aFramerate) |
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331 { |
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332 // Get rid of floating point and round to 2 decimal places |
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333 TInt fps = ((static_cast<TReal>(aFramerate) / (1<<16)) * 100.0) + 0.5; |
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334 |
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335 iVideoTimeScale = 0; |
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336 iDefaultVideoFrameDuration = 1; |
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337 |
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338 // Find nearest whole number multiple |
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339 for (TInt i = 1; i <= 100; ++i) |
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340 { |
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341 if ((fps * i) % 100 == 0) |
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342 { |
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343 iVideoTimeScale = fps * i / 100; |
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344 iDefaultVideoFrameDuration = i; |
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345 break; |
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346 } |
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347 } |
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348 } |
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349 |
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350 void C3GPMuxer::RunL() |
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351 { |
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352 DEBUG_PRINTF(_L8("C3GPMuxer::RunL")); |
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353 iQueMutex.Wait(); |
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354 |
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355 iRequestOutstanding = EFalse; |
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356 |
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357 if (!iPaused) |
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358 { |
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359 if (iAudioPortEnabled && iVideoPortEnabled) |
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360 { |
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361 RunAudioVideoL(); |
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362 } |
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363 else if (iAudioPortEnabled) |
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364 { |
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365 RunAudioL(); |
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366 } |
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367 else if (iVideoPortEnabled) |
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368 { |
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369 RunVideoL(); |
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370 } |
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371 } |
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372 else |
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373 { |
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374 iStatus = KRequestPending; |
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375 } |
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376 |
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377 SetActive(); |
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378 iQueMutex.Signal(); |
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379 } |
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380 |
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381 void C3GPMuxer::RunAudioVideoL() |
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382 { |
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383 // When opening the composer, both audio and video properties must be passed in |
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384 if(!iAudioBuffer) |
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385 { |
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386 // ignore error, if KErrUnderflow then we go back to waiting on iAudioQueue |
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387 iAudioQueue.Receive(iAudioBuffer); |
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388 } |
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389 else |
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390 { |
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391 TInt err = KErrNone; |
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392 if (!iCurrentVideoBuffer) |
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393 { |
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394 err = iVideoQueue.Receive(iCurrentVideoBuffer); |
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395 |
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396 // if KErrUnderflow then we go back to waiting on iVideoQueue |
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397 if (err == KErrNone) |
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398 { |
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399 // both audio and video buffers has been received |
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400 if (!iComposerOpened) |
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401 { |
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402 OpenComposerL(); |
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403 iComposerOpened = ETrue; |
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404 |
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405 iVideoDuration = (iCurrentVideoBuffer->nTimeStamp * iVideoTimeScale) / KMicroSecondsPerSecond; |
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406 |
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407 ReturnBuffer(iAudioBuffer, COmxIL3GPMuxer::EPortIndexAudioInput); |
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408 iAudioBuffer = NULL; |
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409 // [SL] FIXME may also need to return iVideoBuffer in nFilledLen = 0 |
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410 // (VideoSpecificInfo was entire buffer) |
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411 } |
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412 |
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413 // We need the timestamp of the next buffer to work out the frame duration of the current video buffer |
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414 // so wait to receive the next video buffer |
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415 } |
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416 } |
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417 else |
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418 { |
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419 if(!iNextVideoBuffer) |
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420 { |
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421 err = iVideoQueue.Receive(iNextVideoBuffer); |
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422 } |
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423 |
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424 // if KErrUnderflow then we go back to waiting on iVideoQueue |
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425 if(err == KErrNone) |
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426 { |
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427 // next video buffer received |
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428 |
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429 // audio/video frames are added into the composer in the order of timestap |
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430 if (iAudioBuffer->nTimeStamp < iCurrentVideoBuffer->nTimeStamp) |
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431 { |
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432 WriteAudioBuffer(); |
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433 iAudioBuffer = NULL; |
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434 } |
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435 else |
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436 { |
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437 WriteVideoBufferL(); |
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438 iCurrentVideoBuffer = iNextVideoBuffer; |
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439 iNextVideoBuffer = NULL; |
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440 |
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441 if (iCurrentVideoBuffer->nFlags & OMX_BUFFERFLAG_EOS) |
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442 { |
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443 // this is the last video buffer |
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444 WriteVideoBufferL(); |
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445 iCurrentVideoBuffer = NULL; |
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446 } |
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447 } |
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448 } |
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449 } |
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450 } |
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451 |
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452 if(!iAudioBuffer) |
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453 { |
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454 iAudioQueue.NotifyDataAvailable(iStatus); |
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455 } |
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456 else if(!iNextVideoBuffer) |
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457 { |
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458 iVideoQueue.NotifyDataAvailable(iStatus); |
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459 } |
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460 else |
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461 { |
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462 // already have both buffers available |
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463 TRequestStatus* statusPtr = &iStatus; |
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464 User::RequestComplete(statusPtr, KErrNone); |
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465 } |
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466 |
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467 iRequestOutstanding = ETrue; |
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468 } |
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469 |
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470 void C3GPMuxer::RunAudioL() |
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471 { |
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472 if(iAudioBuffer == NULL) |
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473 { |
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474 TInt err = iAudioQueue.Receive(iAudioBuffer); |
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475 // KErrUnderflow if RemoveBuffer or FlushBuffers occurs between notify completion and RunL |
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476 if(err != KErrNone && err != KErrUnderflow) |
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477 { |
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478 HandleError(err); |
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479 return; |
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480 } |
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481 } |
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482 |
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483 if(iAudioBuffer != NULL) |
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484 { |
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485 if (!iComposerOpened) |
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486 { |
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487 OpenComposerL(); |
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488 iComposerOpened = ETrue; |
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489 //return the buffer |
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490 ReturnBuffer(iAudioBuffer, COmxIL3GPMuxer::EPortIndexAudioInput); |
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491 } |
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492 else |
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493 { |
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494 //write the non header audio buffer. |
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495 WriteAudioBuffer(); |
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496 } |
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497 iAudioBuffer = NULL; |
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498 } |
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499 |
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500 iAudioQueue.NotifyDataAvailable(iStatus); |
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501 iRequestOutstanding = ETrue; |
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502 } |
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503 |
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504 void C3GPMuxer::RunVideoL() |
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505 { |
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506 if (!iCurrentVideoBuffer) |
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507 { |
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508 // FIXME KErrUnderflow if RemoveBuffer or FlushBuffers occurs between notify completion and RunL |
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509 HandleError(iVideoQueue.Receive(iCurrentVideoBuffer)); |
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510 |
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511 if (!iComposerOpened) |
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512 { |
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513 OpenComposerL(); |
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514 iComposerOpened = ETrue; |
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515 } |
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516 |
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517 iVideoDuration = (iCurrentVideoBuffer->nTimeStamp * iVideoTimeScale) / KMicroSecondsPerSecond; |
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518 |
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519 // We need the timestamp of the next buffer to work out the frame duration of the current buffer |
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520 // so wait to receive the next buffer |
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521 } |
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522 else |
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523 { |
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524 // next buffer received |
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525 // FIXME KErrUnderflow if RemoveBuffer or FlushBuffers occurs between notify completion and RunL |
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526 HandleError(iVideoQueue.Receive(iNextVideoBuffer)); |
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527 |
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528 WriteVideoBufferL(); |
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529 |
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530 iCurrentVideoBuffer = iNextVideoBuffer; |
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531 iNextVideoBuffer = NULL; |
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532 |
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533 if (iCurrentVideoBuffer->nFlags & OMX_BUFFERFLAG_EOS) |
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534 { |
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535 // this is the last buffer |
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536 WriteVideoBufferL(); |
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537 iCurrentVideoBuffer = NULL; |
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538 } |
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539 } |
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540 |
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541 iVideoQueue.NotifyDataAvailable(iStatus); |
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542 iRequestOutstanding = ETrue; |
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543 } |
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544 |
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545 void C3GPMuxer::OpenComposerL() |
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546 { |
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547 DEBUG_PRINTF(_L8("C3GPMuxer::OpenComposer")); |
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548 T3GPAudioPropertiesBase* audioProperties = NULL; |
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549 TPtr8 audioPtr(NULL,0); |
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550 |
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551 if (iAudioPortEnabled) |
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552 { |
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553 // The first buffer is the decoder specific info. |
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554 audioPtr.Set(iAudioBuffer->pBuffer + iAudioBuffer->nOffset, |
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555 iAudioBuffer->nFilledLen, |
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556 iAudioBuffer->nAllocLen - iAudioBuffer->nOffset); |
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557 |
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558 } |
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559 //The following obj need to be declared in the scope of this function and |
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560 //also after audioPtr is set. |
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561 //Mpeg4Audio is hardcoded for now. |
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562 T3GPAudioPropertiesMpeg4Audio audioPropertiesObj(KAudioTimeScale, audioPtr); |
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563 |
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564 // If audio port is disabled, audioProperties needs to be NULL |
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565 if (iAudioPortEnabled) |
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566 { |
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567 audioProperties=&audioPropertiesObj; |
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568 } |
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569 |
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570 T3GPVideoPropertiesBase* videoProperties = NULL; |
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571 TPtr8 videoPtr(NULL,0); |
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572 TBool foundVideoFrame = EFalse; |
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573 if (iVideoPortEnabled) |
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574 { |
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575 // get decoder specific info length |
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576 TInt offset; |
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577 const TUint8* buf = reinterpret_cast<const TUint8*>(iCurrentVideoBuffer->pBuffer + iCurrentVideoBuffer->nOffset); |
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578 TUint32 stitch = 0xFFFFFFFF; |
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579 for(offset = 0; offset < iCurrentVideoBuffer->nFilledLen; offset++) |
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580 { |
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581 stitch <<= 8; |
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582 stitch |= buf[offset]; |
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583 if(stitch == 0x000001B6) // start of a frame |
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584 { |
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585 foundVideoFrame = ETrue; |
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586 break; |
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587 } |
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588 } |
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589 |
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590 if (foundVideoFrame) |
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591 { |
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592 offset -= 3; |
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593 videoPtr.Set(iCurrentVideoBuffer->pBuffer + iCurrentVideoBuffer->nOffset, |
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594 offset, iCurrentVideoBuffer->nAllocLen - iCurrentVideoBuffer->nOffset); |
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595 iCurrentVideoBuffer->nOffset += offset; |
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596 iCurrentVideoBuffer->nFilledLen -= offset; |
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597 } |
|
598 else |
|
599 { |
|
600 // We assume that the whole frame is the decoder specific info |
|
601 videoPtr.Set(iCurrentVideoBuffer->pBuffer + iCurrentVideoBuffer->nOffset, |
|
602 iCurrentVideoBuffer->nFilledLen, iCurrentVideoBuffer->nAllocLen - iCurrentVideoBuffer->nOffset); |
|
603 |
|
604 // Whole buffer has been used. Set remaining length to zero so that when the |
|
605 // next buffer arrives we don't try to write out the decoder specific info |
|
606 // as a frame |
|
607 iCurrentVideoBuffer->nOffset += iCurrentVideoBuffer->nFilledLen; |
|
608 iCurrentVideoBuffer->nFilledLen = 0; |
|
609 } |
|
610 |
|
611 // FIXME unhandled allocation error - store this on the stack? |
|
612 videoProperties = new T3GPVideoPropertiesMpeg4Video(iVideoTimeScale, iVideoSize, iBitRate, iBitRate, videoPtr); |
|
613 } |
|
614 |
|
615 HandleError(iComposer->Open(E3GP3GP, videoProperties, audioProperties, *iFilename, E3GPLongClip)); |
|
616 |
|
617 delete videoProperties; |
|
618 } |
|
619 |
|
620 void C3GPMuxer::WriteVideoBufferL() |
|
621 { |
|
622 DEBUG_PRINTF(_L8("C3GPMuxer::WriteVideoBuffer")); |
|
623 TUint8* currentBuffer = NULL; |
|
624 TInt currentBufferLength = 0; |
|
625 TInt currentBufferMaxLength = 0; |
|
626 TBool multipleFrameInBuffer = EFalse; |
|
627 |
|
628 if (iPartialFrame.Length() > 0) |
|
629 { |
|
630 // merge the partial frame from the previous buffer |
|
631 |
|
632 if (iPartialFrame.Length()+iCurrentVideoBuffer->nFilledLen > KMaxBufferSize) |
|
633 { |
|
634 iPartialFrame.ReAllocL(iPartialFrame.Length()+iCurrentVideoBuffer->nFilledLen); |
|
635 } |
|
636 |
|
637 iPartialFrame.Append(iCurrentVideoBuffer->pBuffer + iCurrentVideoBuffer->nOffset, iCurrentVideoBuffer->nFilledLen); |
|
638 |
|
639 currentBuffer = const_cast<TUint8*>(iPartialFrame.Ptr()); |
|
640 currentBufferLength = iPartialFrame.Length(); |
|
641 currentBufferMaxLength = iPartialFrame.MaxLength(); |
|
642 |
|
643 multipleFrameInBuffer = ETrue; |
|
644 } |
|
645 else |
|
646 { |
|
647 currentBuffer = iCurrentVideoBuffer->pBuffer + iCurrentVideoBuffer->nOffset; |
|
648 currentBufferLength = iCurrentVideoBuffer->nFilledLen; |
|
649 currentBufferMaxLength = iCurrentVideoBuffer->nAllocLen - iCurrentVideoBuffer->nOffset; |
|
650 } |
|
651 |
|
652 // Write video frames from buffer. |
|
653 // Check for non-zero buffer length in case we have been sent an empty buffer |
|
654 if (currentBufferLength > 0) |
|
655 { |
|
656 if(!multipleFrameInBuffer && (iCurrentVideoBuffer->nFlags & OMX_BUFFERFLAG_SYNCFRAME)) |
|
657 { |
|
658 // buffer contains one full I frame |
|
659 TInt nextFrameDuration = CalculateNextFrameDuration(); |
|
660 TPtr8 videoPtr(currentBuffer, currentBufferLength, currentBufferMaxLength); |
|
661 HandleError(iComposer->WriteVideoFrame(videoPtr, nextFrameDuration, ETrue)); |
|
662 } |
|
663 else if (!multipleFrameInBuffer && (iCurrentVideoBuffer->nFlags & OMX_BUFFERFLAG_ENDOFFRAME)) |
|
664 { |
|
665 // buffer contains one full frame |
|
666 |
|
667 // Evaluate whether it is an I frame |
|
668 TInt offset = 0; |
|
669 TUint32 stitch = 0xFFFFFFFF; |
|
670 TBool isIframe = EFalse; |
|
671 |
|
672 for(offset = 0; offset < currentBufferLength; offset++) |
|
673 { |
|
674 stitch <<= 8; |
|
675 stitch |= currentBuffer[offset]; |
|
676 |
|
677 if(stitch == 0x000001B6) // start of a frame |
|
678 { |
|
679 TUint8 iframebits = currentBuffer[offset+1] >> 6; // get the next 2 bits |
|
680 if (iframebits == 0) |
|
681 { |
|
682 isIframe = ETrue; |
|
683 } |
|
684 else |
|
685 { |
|
686 isIframe = EFalse; |
|
687 } |
|
688 |
|
689 break; |
|
690 } |
|
691 } |
|
692 |
|
693 TInt nextFrameDuration = CalculateNextFrameDuration(); |
|
694 TPtr8 videoPtr(currentBuffer, currentBufferLength, currentBufferMaxLength); |
|
695 HandleError(iComposer->WriteVideoFrame(videoPtr, nextFrameDuration, isIframe)); |
|
696 } |
|
697 else |
|
698 { |
|
699 // buffer either contains multiple frames or part of a single frame |
|
700 // so need to parse the buffer to retrieve the frames |
|
701 |
|
702 TInt offset = 0; |
|
703 TUint32 stitch = 0xFFFFFFFF; |
|
704 |
|
705 TBool foundNextFrame = EFalse; |
|
706 TInt frameLength = 0; |
|
707 TInt frameOffset = 0; |
|
708 TBool isIframe = EFalse; |
|
709 TBool frameWritten = EFalse; |
|
710 |
|
711 // retieve and write video frames |
|
712 for(offset = 0; offset < currentBufferLength; offset++) |
|
713 { |
|
714 stitch <<= 8; |
|
715 stitch |= currentBuffer[offset]; |
|
716 |
|
717 frameLength++; |
|
718 |
|
719 if(!foundNextFrame && stitch == 0x000001B6) |
|
720 { |
|
721 foundNextFrame = ETrue; |
|
722 |
|
723 // Evaluate whether it is an I frame |
|
724 if (offset+1 >= currentBufferLength) |
|
725 { |
|
726 break; // reached the end of the buffer |
|
727 } |
|
728 |
|
729 TUint8 iframebits = currentBuffer[offset+1] >> 6; // get the next 2 bits |
|
730 if (iframebits == 0) |
|
731 { |
|
732 isIframe = ETrue; |
|
733 } |
|
734 else |
|
735 { |
|
736 isIframe = EFalse; |
|
737 } |
|
738 } |
|
739 else if (foundNextFrame && (stitch == 0x000001B0 || stitch == 0x00000120)) |
|
740 { |
|
741 // start of next frame (which includes VOS and/or VOL header) |
|
742 |
|
743 // write the current frame |
|
744 TInt nextFrameDuration = CalculateNextFrameDurationPartial(frameWritten); |
|
745 TPtr8 videoPtr(currentBuffer + frameOffset, frameLength - 4, currentBufferMaxLength - frameOffset); |
|
746 HandleError(iComposer->WriteVideoFrame(videoPtr, nextFrameDuration, isIframe)); |
|
747 frameWritten = ETrue; |
|
748 |
|
749 frameOffset = offset - 3; // to include the VOS/VOL start code in the next frame |
|
750 frameLength = 4; |
|
751 |
|
752 foundNextFrame = EFalse; |
|
753 isIframe = EFalse; |
|
754 } |
|
755 else if (foundNextFrame && stitch == 0x000001B6) |
|
756 { |
|
757 // start of next frame |
|
758 |
|
759 // write the current frame |
|
760 TInt nextFrameDuration = CalculateNextFrameDurationPartial(frameWritten); |
|
761 TPtr8 videoPtr(currentBuffer + frameOffset, frameLength - 4, currentBufferMaxLength - frameOffset); |
|
762 HandleError(iComposer->WriteVideoFrame(videoPtr, nextFrameDuration, isIframe)); |
|
763 frameWritten = ETrue; |
|
764 |
|
765 frameOffset = offset - 3; // to include the VOP start code in the next frame |
|
766 frameLength = 4; |
|
767 |
|
768 foundNextFrame = ETrue; |
|
769 |
|
770 // Evaluate whether it is an I frame |
|
771 if (offset+1 >= currentBufferLength) |
|
772 { |
|
773 break; // reached the end of the buffer |
|
774 } |
|
775 |
|
776 TUint8 iframebits = currentBuffer[offset+1] >> 6; // get the next 2 bits |
|
777 if (iframebits == 0) |
|
778 { |
|
779 isIframe = ETrue; |
|
780 } |
|
781 else |
|
782 { |
|
783 isIframe = EFalse; |
|
784 } |
|
785 } |
|
786 } |
|
787 |
|
788 if (frameLength > 0) |
|
789 { |
|
790 if (iCurrentVideoBuffer->nFlags & OMX_BUFFERFLAG_EOS) |
|
791 { |
|
792 // this is the last buffer, so we can assume that the rest of the buffer contains one full frame |
|
793 TInt nextFrameDuration = CalculateNextFrameDurationPartial(frameWritten); |
|
794 TPtr8 videoPtr(currentBuffer + frameOffset, frameLength, currentBufferMaxLength - frameOffset); |
|
795 HandleError(iComposer->WriteVideoFrame(videoPtr, nextFrameDuration, isIframe)); |
|
796 frameWritten = ETrue; |
|
797 } |
|
798 else |
|
799 { |
|
800 // the buffer may contain part of a frame |
|
801 // save it for use later |
|
802 iPartialFrame.Copy(currentBuffer + frameOffset, frameLength); |
|
803 } |
|
804 } |
|
805 else |
|
806 { |
|
807 User::Panic(K3GPMuxerPanic, KErrGeneral); // frameLength should never be 0 |
|
808 } |
|
809 } |
|
810 } |
|
811 |
|
812 ReturnBuffer(iCurrentVideoBuffer, COmxIL3GPMuxer::EPortIndexVideoInput); |
|
813 } |
|
814 |
|
815 TInt C3GPMuxer::CalculateNextFrameDuration() |
|
816 { |
|
817 TInt64 durationSinceStart = (iCurrentVideoBuffer->nTimeStamp * iVideoTimeScale) / KMicroSecondsPerSecond; |
|
818 TInt nextFrameDuration = durationSinceStart - iVideoDuration; |
|
819 if (nextFrameDuration < iDefaultVideoFrameDuration) |
|
820 { |
|
821 nextFrameDuration = iDefaultVideoFrameDuration; |
|
822 } |
|
823 |
|
824 iVideoDuration = durationSinceStart; |
|
825 |
|
826 return nextFrameDuration; |
|
827 } |
|
828 |
|
829 TInt C3GPMuxer::CalculateNextFrameDurationPartial(TBool aFrameWritten) |
|
830 { |
|
831 if (!aFrameWritten) |
|
832 { |
|
833 return CalculateNextFrameDuration(); |
|
834 } |
|
835 |
|
836 iVideoDuration += iDefaultVideoFrameDuration; |
|
837 |
|
838 return iDefaultVideoFrameDuration; |
|
839 } |
|
840 |
|
841 void C3GPMuxer::WriteAudioBuffer() |
|
842 { |
|
843 DEBUG_PRINTF(_L8("C3GPMuxer::WriteAudioBuffer")); |
|
844 |
|
845 if (iAudioBuffer->nFilledLen != 0) |
|
846 { |
|
847 TPtr8 audioPtr(iAudioBuffer->pBuffer + iAudioBuffer->nOffset, |
|
848 iAudioBuffer->nFilledLen, iAudioBuffer->nAllocLen - iAudioBuffer->nOffset); |
|
849 |
|
850 |
|
851 //Calculate the audio frame duration in timescale |
|
852 //nTimeStamp is in microseconds |
|
853 TUint durationInTimeSlice=KAudioTimeScale*iAudioBuffer->nTimeStamp/KMicroSecondsPerSecond; |
|
854 TUint duration=durationInTimeSlice-iAudioFrameDuration; |
|
855 iAudioFrameDuration=durationInTimeSlice; |
|
856 HandleError(iComposer->WriteAudioFrames(audioPtr, duration)); |
|
857 |
|
858 |
|
859 |
|
860 } |
|
861 ReturnBuffer(iAudioBuffer, COmxIL3GPMuxer::EPortIndexAudioInput); |
|
862 } |
|
863 |
|
864 void C3GPMuxer::ReturnBuffer(OMX_BUFFERHEADERTYPE* aBuffer, TUint32 aPortIndex) |
|
865 { |
|
866 DEBUG_PRINTF3(_L8("C3GPMuxer::ReturnBuffer : aBuffer[%X]; aPortIndex[%u]"), aBuffer, aPortIndex); |
|
867 OMX_U32 flags = aBuffer->nFlags; |
|
868 aBuffer->nFilledLen = 0; |
|
869 aBuffer->nFlags = 0; |
|
870 aBuffer->nOffset = 0; |
|
871 aBuffer->nTimeStamp = 0; |
|
872 iCallbacks.BufferDoneNotification(aBuffer, aPortIndex, OMX_DirInput); |
|
873 |
|
874 if(flags & OMX_BUFFERFLAG_EOS) |
|
875 { |
|
876 iCallbacks.EventNotification(OMX_EventBufferFlag, aPortIndex, flags, NULL); |
|
877 } |
|
878 } |
|
879 |
|
880 void C3GPMuxer::DoCancel() |
|
881 { |
|
882 DEBUG_PRINTF(_L8("C3GPMuxer::DoCancel")); |
|
883 if (iAudioPortEnabled) |
|
884 { |
|
885 iAudioQueue.CancelDataAvailable(); |
|
886 } |
|
887 |
|
888 if (iVideoPortEnabled) |
|
889 { |
|
890 iVideoQueue.CancelDataAvailable(); |
|
891 } |
|
892 } |
|
893 |
|
894 TBool C3GPMuxer::RemoveFromQueue(RMsgQueue<OMX_BUFFERHEADERTYPE*>& aQueue, OMX_BUFFERHEADERTYPE* aBufferHeader) |
|
895 { |
|
896 DEBUG_PRINTF3(_L8("C3GPMuxer::RemoveFromQueue : aQueue[%X]; aBufferHeader[%X]"), &aQueue, aBufferHeader); |
|
897 TBool removed = EFalse; |
|
898 OMX_BUFFERHEADERTYPE* bufferHeader = NULL; |
|
899 while(aQueue.Receive(bufferHeader) != KErrUnderflow) |
|
900 { |
|
901 if(bufferHeader != aBufferHeader) |
|
902 { |
|
903 TInt error = iRemoveQueue.Send(bufferHeader); |
|
904 __ASSERT_DEBUG(error == KErrNone, User::Panic(K3GPMuxerPanic, error)); |
|
905 } |
|
906 else |
|
907 { |
|
908 removed = ETrue; |
|
909 } |
|
910 } |
|
911 while(iRemoveQueue.Receive(bufferHeader) != KErrUnderflow) |
|
912 { |
|
913 TInt error = aQueue.Send(bufferHeader); |
|
914 __ASSERT_DEBUG(error == KErrNone, User::Panic(K3GPMuxerPanic, error)); |
|
915 } |
|
916 return removed; |
|
917 } |
|
918 |
|
919 void C3GPMuxer::Pause() |
|
920 { |
|
921 DEBUG_PRINTF(_L8("C3GPMuxer::Pause")); |
|
922 iPaused = ETrue; |
|
923 } |
|
924 |
|
925 void C3GPMuxer::HandleError(TInt aError) |
|
926 { |
|
927 DEBUG_PRINTF2(_L8("C3GPMuxer::HandleError : aError[%d]"), aError); |
|
928 OMX_ERRORTYPE omxError = SymbianErrorToOmx(aError); |
|
929 if (omxError != OMX_ErrorNone) |
|
930 { |
|
931 iMuxerInvalid = ETrue; |
|
932 iCallbacks.ErrorEventNotification(omxError); |
|
933 } |
|
934 } |
|
935 |
|
936 TBool C3GPMuxer::IsMuxerInvalid() const |
|
937 { |
|
938 return iMuxerInvalid; |
|
939 } |
|
940 |
|
941 OMX_ERRORTYPE C3GPMuxer::SymbianErrorToOmx(TInt aError) |
|
942 { |
|
943 switch(aError) |
|
944 { |
|
945 case KErrNone: |
|
946 return OMX_ErrorNone; |
|
947 case KErrNoMemory: |
|
948 return OMX_ErrorInsufficientResources; |
|
949 case KErrWrite: |
|
950 return OMX_ErrorContentPipeOpenFailed; |
|
951 default: |
|
952 return OMX_ErrorUndefined; |
|
953 } |
|
954 } |