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1 /* |
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2 * Copyright (c) 2006 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 |
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21 #include "mccfileaudio.h" |
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22 #include "mmcccodecinformation.h" |
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23 #include "mccperiodicrunner.h" |
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24 #include "mccfilesourcelogs.h" |
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25 #include "mccinternaldef.h" |
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26 |
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27 |
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28 // ----------------------------------------------------------------------------- |
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29 // CMccFileAudio::NewL |
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30 // ----------------------------------------------------------------------------- |
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31 // |
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32 CMccFileAudio* CMccFileAudio::NewL( CMccFileSourceImpl& aSource ) |
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33 { |
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34 CMccFileAudio* self = new (ELeave) CMccFileAudio ( aSource ); |
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35 CleanupStack::PushL( self ); |
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36 self->ConstructL(); |
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37 CleanupStack::Pop( self ); |
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38 |
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39 return self; |
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40 } |
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41 |
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42 // ----------------------------------------------------------------------------- |
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43 // CMccFileAudio::ConstructL |
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44 // ----------------------------------------------------------------------------- |
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45 // |
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46 void CMccFileAudio::ConstructL() |
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47 { |
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48 CMccFileSourceTypeBase::ConstructL(); |
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49 } |
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50 |
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51 // ----------------------------------------------------------------------------- |
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52 // CMccFileAudio::CMccFileAudio |
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53 // ----------------------------------------------------------------------------- |
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54 // |
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55 CMccFileAudio::CMccFileAudio( CMccFileSourceImpl& aSource ) |
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56 : CMccFileSourceTypeBase ( aSource, KUidMediaTypeAudio ), |
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57 iBufferType ( CCMRMediaBuffer::EAudioAMRNB ) |
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58 { |
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59 } |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // CMccFileAudio::~CMccFileAudio |
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63 // ----------------------------------------------------------------------------- |
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64 // |
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65 CMccFileAudio::~CMccFileAudio( ) |
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66 { |
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67 } |
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68 |
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69 // ----------------------------------------------------------------------------- |
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70 // CMccFileAudio::FillBufferL |
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71 // ----------------------------------------------------------------------------- |
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72 // |
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73 void CMccFileAudio::FillBufferL( |
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74 CMMFBuffer* aBuffer, |
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75 MDataSink* aConsumer ) |
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76 { |
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77 CMccFileSourceTypeBase::FillBufferL( aBuffer, aConsumer ); |
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78 |
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79 // There might be pending audio frames, read the oldest one immediately |
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80 WriteBufferL(); |
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81 } |
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82 |
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83 // ----------------------------------------------------------------------------- |
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84 // CMccFileAudio::ParseUpdateAudioDescriptions |
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85 // ----------------------------------------------------------------------------- |
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86 // |
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87 TBool CMccFileAudio::ParseUpdateAudioDescriptions( MP4Handle aMP4Handle ) |
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88 { |
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89 TBool isAudio = EFalse; |
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90 |
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91 mp4_u32 timeScale = 0; |
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92 if ( MP4ParseRequestAudioDescription( aMP4Handle, |
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93 ( mp4_u32* ) &iLength, ( mp4_u32* ) &iType, |
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94 ( mp4_u8* ) &iFramesPerSample, ( mp4_u32* ) &timeScale, |
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95 ( mp4_u32* ) &iAverageBitRate ) |
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96 == MP4_OK ) |
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97 { |
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98 if ( iType == MP4_TYPE_AMR_NB ) |
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99 { |
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100 __FILESOURCE_CONTROLL( "CMccFileAudio:ParseUpdateAudioDescriptions \ |
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101 MP4_TYPE_AMR_NB!" ) |
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102 |
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103 iBufferType = CCMRMediaBuffer::EAudioAMRNB; |
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104 isAudio = ETrue; |
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105 iFourCC = TFourCC( KMccFourCCIdAMRNB ); |
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106 } |
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107 else if ( iType != MP4_TYPE_NONE ) |
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108 { |
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109 __FILESOURCE_CONTROLL( "CMccFileAudio:ParseUpdateAudioDescriptions \ |
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110 contains unsupported audio" ) |
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111 |
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112 iFourCC = TFourCC( KMccFourCCUnsupported ); |
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113 } |
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114 else |
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115 { |
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116 // NOP |
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117 } |
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118 } |
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119 return isAudio; |
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120 } |
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121 |
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122 // ----------------------------------------------------------------------------- |
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123 // CMccFileAudio::DoSetPositionL |
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124 // ----------------------------------------------------------------------------- |
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125 // |
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126 void CMccFileAudio::DoSetPositionL( TUint32 aPosition ) |
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127 { |
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128 __FILESOURCE_CONTROLL( "CMccFileAudio::DoSetPositionL" ) |
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129 |
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130 __ASSERT_ALWAYS( aPosition <= iLength, User::Leave( KErrArgument ) ); |
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131 |
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132 mp4_u32 videoPos = 0; |
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133 if ( MP4ParseSeek( iMP4Handle, ( mp4_u32 ) aPosition, |
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134 ( mp4_u32* ) &iPosition, ( mp4_u32* ) &videoPos, MP4TRUE ) |
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135 != MP4_OK ) |
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136 { |
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137 User::Leave( KErrGeneral ); |
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138 } |
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139 } |
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140 |
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141 // ----------------------------------------------------------------------------- |
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142 // CMccFileAudio::Type |
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143 // ----------------------------------------------------------------------------- |
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144 // |
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145 CCMRMediaBuffer::TBufferType CMccFileAudio::Type() |
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146 { |
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147 return iBufferType; |
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148 } |
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149 |
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150 // ----------------------------------------------------------------------------- |
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151 // CMccFileAudio::GetFourCC |
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152 // ----------------------------------------------------------------------------- |
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153 // |
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154 TFourCC CMccFileAudio::GetFourCC() |
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155 { |
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156 return iFourCC; |
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157 } |
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158 |
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159 // ----------------------------------------------------------------------------- |
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160 // CMccFileAudio::TickCallBack |
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161 // ----------------------------------------------------------------------------- |
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162 // |
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163 TCallBack CMccFileAudio::TickCallBack() |
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164 { |
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165 return TCallBack( TickAudioL, this ); |
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166 } |
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167 |
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168 // ----------------------------------------------------------------------------- |
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169 // CMccFileAudio::PositionL |
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170 // ----------------------------------------------------------------------------- |
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171 // |
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172 TUint32 CMccFileAudio::Position() |
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173 { |
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174 return iPosition; |
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175 } |
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176 |
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177 // ----------------------------------------------------------------------------- |
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178 // CMccFileAudio::DurationL |
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179 // ----------------------------------------------------------------------------- |
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180 // |
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181 TUint32 CMccFileAudio::Duration() |
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182 { |
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183 return iLength; |
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184 } |
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185 |
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186 // ----------------------------------------------------------------------------- |
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187 // CMccFileAudio::AudioBitRateL |
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188 // ----------------------------------------------------------------------------- |
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189 // |
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190 TUint32 CMccFileAudio::AudioBitRate() |
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191 { |
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192 return iAverageBitRate; |
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193 } |
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194 |
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195 // ----------------------------------------------------------------------------- |
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196 // CMccFileAudio::VideoFrameSizeL |
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197 // ----------------------------------------------------------------------------- |
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198 // |
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199 TSize CMccFileAudio::VideoFrameSize() |
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200 { |
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201 TSize size; |
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202 return size; |
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203 } |
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204 |
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205 // ----------------------------------------------------------------------------- |
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206 // CMccFileAudio::VideoFrameRateL |
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207 // ----------------------------------------------------------------------------- |
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208 // |
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209 TReal CMccFileAudio::VideoFrameRateL() |
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210 { |
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211 return 0; |
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212 } |
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213 |
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214 // ----------------------------------------------------------------------------- |
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215 // CMccFileAudio::StartTimerL |
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216 // ----------------------------------------------------------------------------- |
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217 // |
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218 void CMccFileAudio::StartTimerL() |
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219 { |
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220 __FILESOURCE_CONTROLL( "CMccFileAudio::StartTimerL" ) |
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221 |
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222 if ( IsPaused() ) |
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223 { |
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224 SetPaused( EFalse ); |
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225 |
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226 SetPositionL( iPosition, ETrue ); |
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227 } |
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228 else |
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229 { |
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230 SetStartTime(); |
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231 } |
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232 |
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233 const TInt KMccFileIntervalMinInterval = 60000; |
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234 const TInt KMccFileAudioPTime = 20000; |
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235 TInt tickIntervalAudio = 0; |
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236 iReadsPerInterval = 0; |
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237 |
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238 __ASSERT_ALWAYS( iFramesPerSample > 0, User::Leave( KErrArgument ) ); |
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239 |
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240 while ( tickIntervalAudio < KMccFileIntervalMinInterval ) |
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241 { |
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242 tickIntervalAudio += KMccFileAudioPTime * iFramesPerSample; |
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243 iReadsPerInterval++; |
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244 } |
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245 |
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246 __FILESOURCE_CONTROLL_INT1( "CMccFileAudio::StartTimer (timer):", |
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247 tickIntervalAudio ) |
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248 |
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249 iTimerInterval = tickIntervalAudio; |
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250 iCorrectionInterval = iTimerInterval; |
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251 |
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252 iPeriodicRunner->Start( tickIntervalAudio, TCallBack( TickAudioL, this ) ); |
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253 |
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254 __FILESOURCE_CONTROLL( "CMccFileAudio::StartTimerL, exit" ) |
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255 } |
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256 |
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257 // ----------------------------------------------------------------------------- |
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258 // CMccFileAudio::TickAudioL |
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259 // ----------------------------------------------------------------------------- |
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260 // |
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261 TInt CMccFileAudio::TickAudioL( TAny* aObject ) |
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262 { |
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263 __FILESOURCE_CONTROLL( "CMccFileAudio::TickAudioL" ) |
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264 |
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265 CMccFileAudio* self = static_cast<CMccFileAudio*>( aObject ); |
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266 |
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267 TBool read( ETrue ); |
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268 TInt readsPerInterval( self->iReadsPerInterval ); |
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269 for ( TInt i = 0; i < readsPerInterval && read; i++ ) |
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270 { |
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271 // Do timing correction only after everything within this cycle has |
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272 // been read |
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273 TBool doTimingCorrection( ( i + 1 ) == readsPerInterval ); |
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274 read = self->ReadFrameL( doTimingCorrection ); |
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275 } |
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276 |
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277 return KErrNone; |
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278 } |
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279 |
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280 // ----------------------------------------------------------------------------- |
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281 // CMccFileAudio::ReadFrameL |
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282 // ----------------------------------------------------------------------------- |
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283 // |
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284 TBool CMccFileAudio::ReadFrameL( TBool aDoTimingCorrection ) |
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285 { |
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286 __FILESOURCE_CONTROLL( "CMccFileAudio::ReadFrameL" ) |
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287 |
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288 |
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289 if ( MP4ParseIsFrameAvailable( iMP4Handle, MP4_TYPE_AMR_NB ) != MP4_OK ) |
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290 { |
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291 __FILESOURCE_CONTROLL( "CMccFileAudio::ReadFrameL, no audio" ) |
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292 |
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293 SetPaused( ETrue ); |
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294 TRAPD( positionErr, SetPositionL( 0 ) ); |
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295 iSource.PauseAudioL( positionErr ); |
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296 return EFalse; |
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297 } |
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298 |
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299 MP4ParseNextFrameSize( iMP4Handle, MP4_TYPE_AMR_NB, |
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300 ( mp4_u32* ) &iBufferSize ); |
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301 |
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302 HBufC8* mediaBuffer = HBufC8::NewLC( iBufferSize ); |
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303 TPtr8 mediaSinkBuffer = mediaBuffer->Des(); |
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304 mediaSinkBuffer.SetLength( iBufferSize ); |
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305 TUint8* bufPtr = CONST_CAST(TUint8*, mediaSinkBuffer.Ptr()); |
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306 |
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307 TUint32 oldPosition = iPosition; |
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308 if ( MP4ParseReadAudioFrames( iMP4Handle, |
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309 ( mp4_u8* ) bufPtr, |
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310 ( mp4_u32 ) iBufferSize, ( mp4_u32* ) &iAudioSize, |
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311 ( mp4_u32* ) &iPosition, ( mp4_u32* ) &iReturnedFrames, |
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312 NULL ) == MP4_OK ) |
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313 { |
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314 __FILESOURCE_CONTROLL_INT1( ":ReadFrameL:ReadAudioFrameL, \ |
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315 read, time position", iPosition ) |
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316 __FILESOURCE_CONTROLL_INT1( ":ReadFrameL:ReadAudioFrameL, \ |
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317 read, returned frames", iReturnedFrames ) |
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318 |
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319 if ( aDoTimingCorrection ) |
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320 { |
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321 DoTimingCorrection( iPosition ); |
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322 } |
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323 |
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324 // Update read interval (how much position changes on each frame read) |
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325 iReadInterval = iPosition - oldPosition; |
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326 |
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327 // Calculate real frame size from sample size |
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328 TInt frameSize = iBufferSize / iReturnedFrames; |
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329 TUint counter = 0; |
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330 TInt addToTimeStamp = 0; |
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331 TInt startPosition = 0; |
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332 TInt mediaBufferLen = mediaBuffer->Length(); |
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333 |
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334 while ( ( counter < iReturnedFrames ) && |
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335 ( startPosition < mediaBufferLen ) ) |
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336 { |
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337 counter++; |
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338 |
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339 frameSize = GetFrameLength( mediaBuffer->Mid( startPosition ) ); |
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340 if ( frameSize != 0 && ( startPosition + frameSize <= mediaBufferLen ) ) |
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341 { |
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342 TTimeIntervalMicroSeconds timeStamp = |
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343 GetTimeStamp( addToTimeStamp ); |
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344 |
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345 CMccFrameItem* item = new (ELeave) CMccFrameItem(); |
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346 CleanupStack::PushL( item ); |
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347 item->iFrame = HBufC8::NewL( frameSize ); |
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348 item->iFrame->Des().Copy( |
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349 mediaBuffer->Mid( startPosition, frameSize ) ); |
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350 item->iTimeStamp = timeStamp; |
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351 User::LeaveIfError( iFrames.Append( item ) ); |
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352 CleanupStack::Pop( item ); |
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353 } |
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354 addToTimeStamp += 20000; |
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355 startPosition += frameSize; |
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356 } |
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357 } |
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358 else |
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359 { |
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360 __FILESOURCE_CONTROLL( ":ReadFrameL:ReadAudioFrameL, \ |
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361 reading frames failed" ) |
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362 } |
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363 CleanupStack::PopAndDestroy(mediaBuffer); |
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364 mediaBuffer = NULL; |
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365 |
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366 __FILESOURCE_CONTROLL( ":ReadFrameL:ReadAudioFrameL, \ |
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367 writing buffer, copying" ) |
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368 |
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369 WriteBufferL(); |
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370 |
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371 return ETrue; |
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372 } |
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373 |
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374 // ----------------------------------------------------------------------------- |
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375 // CMccFileAudio::WriteBufferL |
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376 // ----------------------------------------------------------------------------- |
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377 // |
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378 void CMccFileAudio::WriteBufferL() |
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379 { |
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380 __FILESOURCE_CONTROLL("CMccFileAudio::WriteBufferL") |
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381 |
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382 if ( iFrames.Count() && iConsumer && iConsumerBuffer ) |
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383 { |
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384 CMMFDataBuffer* buf = static_cast<CMMFDataBuffer*>(iConsumerBuffer); |
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385 |
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386 HBufC8* audioFrame = (iFrames[0])->iFrame; |
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387 // to be sure the source buffer length is greater or equal |
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388 if ( buf->Data().MaxLength() >= audioFrame->Des().Length() ) |
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389 { |
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390 buf->Data().Copy( *audioFrame ); |
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391 iConsumerBuffer->SetTimeToPlay((iFrames[0])->iTimeStamp); |
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392 iConsumerBuffer->SetLastBuffer(EFalse); |
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393 iConsumerBuffer->SetFrameNumber( iSequenceNum ); |
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394 delete iFrames[0]; |
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395 iFrames.Remove(0); |
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396 audioFrame = NULL; |
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397 iConsumer->BufferFilledL( iConsumerBuffer ); |
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398 iConsumer = NULL; |
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399 iConsumerBuffer = NULL; |
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400 iSequenceNum++; |
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401 __FILESOURCE_CONTROLL("CMccFileAudio::WriteBufferL, done") |
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402 } |
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403 else |
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404 { |
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405 __FILESOURCE_CONTROLL("CMccFileAudio::WriteBufferL, frame dropped") |
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406 |
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407 delete iFrames[0]; |
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408 iFrames.Remove(0); |
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409 audioFrame = NULL; |
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410 } |
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411 } |
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412 else |
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413 { |
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414 __FILESOURCE_CONTROLL("CMccFileAudio::WriteBufferL, writing ignored") |
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415 } |
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416 } |
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417 |
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418 // ----------------------------------------------------------------------------- |
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419 // CMccFileAudio::GetFrameLength |
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420 // ----------------------------------------------------------------------------- |
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421 // |
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422 TUint32 CMccFileAudio::GetFrameLength( TPtrC8 aData ) |
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423 { |
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424 const TUint8 *ptrData=aData.Ptr(); |
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425 //read FT from data |
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426 TUint8 fT = (TUint8) ( *ptrData & 0x78 ); |
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427 fT = TUint8 ( fT >> 3 ); |
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428 //return frame length |
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429 switch ( fT ) |
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430 { |
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431 case 0: //amr 4.75 |
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432 { |
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433 const TUint32 number13 = 13; |
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434 return number13; |
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435 } |
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436 case 1: //amr 5.15 |
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437 { |
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438 const TUint32 number14 = 14; |
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439 return number14; |
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440 } |
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441 case 2: //amr 5.9 |
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442 { |
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443 const TUint32 number16 = 16; |
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444 |
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445 return number16; |
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446 } |
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447 case 3: //amr 6.7 |
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448 { |
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449 const TUint32 number18 = 18; |
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450 return number18; |
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451 } |
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452 case 4: //amr 7.4 |
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453 { |
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454 const TUint32 number20 = 20; |
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455 return number20; |
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456 } |
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457 case 5: //amr 7.95 |
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458 { |
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459 const TUint32 number21 = 21; |
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460 return number21; |
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461 } |
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462 case 6: //amr 10.2 |
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463 { |
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464 const TUint32 number27 = 27; |
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465 return number27; |
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466 } |
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467 case 7: //amr 12.2 |
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468 { |
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469 const TUint32 number32 = 32; |
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470 return number32; |
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471 } |
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472 case 8: //amr SID |
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473 { |
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474 const TUint32 number6 = 6; |
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475 return number6; |
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476 } |
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477 case 15: //no data |
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478 { |
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479 const TUint32 number1 = 1; |
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480 return number1; |
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481 } |
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482 default: //not arm narrowband |
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483 { |
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484 const TUint32 number0 = 0; |
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485 return number0; |
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486 } |
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487 } |
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488 } |
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489 |
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490 // ----------------------------------------------------------------------------- |
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491 // CMccFileAudio::GetTimeStamp |
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492 // ----------------------------------------------------------------------------- |
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493 // |
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494 TTimeIntervalMicroSeconds CMccFileAudio::GetTimeStamp( TUint32 aAddToTimeStamp ) |
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495 { |
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496 TInt64 position = iPosition + iPositionModifier; |
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497 TUint32 position2 = ( position < 0 ) ? 0 : (TUint32)position; |
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498 TTimeIntervalMicroSeconds timeStamp = |
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499 TTimeIntervalMicroSeconds( ( (TInt64) position2 * KMccMicroToMilliConst ) + aAddToTimeStamp ); |
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500 |
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501 __FILESOURCE_CONTROLL_INT1( "CMccFileAudio::GetTimeStamp timestamp (without clock frequency):", |
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502 timeStamp.Int64() ) |
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503 |
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504 return timeStamp; |
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505 } |
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506 |