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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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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 the "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 * Ixonos Plc |
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14 * |
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15 * Description: |
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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 "ProcDecoder.h" |
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22 #include "audconstants.h" |
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23 #include <MmfDatabuffer.h> |
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24 #include <mmfcontrollerpluginresolver.h> |
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25 #include <mmf/plugin/mmfCodecImplementationUIDs.hrh> |
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26 #include <MMFCodec.h> |
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27 |
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28 |
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29 // CONSTANTS |
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30 |
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31 |
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32 |
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33 |
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34 |
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35 // MACROS |
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36 |
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37 // Debug print macro |
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38 #if defined _DEBUG |
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39 #include <e32svr.h> |
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40 #define PRINT(x) RDebug::Print x; |
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41 #else |
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42 #define PRINT(x) |
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43 #endif |
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44 |
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45 |
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46 CProcDecoder* CProcDecoder::NewL() |
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47 |
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48 { |
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49 CProcDecoder* self = NewLC(); |
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50 CleanupStack::Pop(self); |
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51 return self; |
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52 |
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53 } |
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54 |
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55 |
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56 CProcDecoder* CProcDecoder::NewLC() |
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57 |
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58 { |
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59 |
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60 CProcDecoder* self = new (ELeave) CProcDecoder(); |
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61 CleanupStack::PushL(self); |
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62 self->ConstructL(); |
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63 return self; |
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64 |
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65 } |
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66 |
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67 CProcDecoder::~CProcDecoder() |
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68 { |
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69 |
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70 delete iSourceInputBuffer; |
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71 |
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72 // Input buffer for encoder (alternative output buffer for decoder). |
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73 delete iDestInputBuffer; |
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74 |
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75 // Codec used in decoding input audio to PCM16 |
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76 delete iSourceCodec; |
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77 |
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78 delete iSampleRateChannelBuffer; |
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79 |
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80 delete iRateConverter; |
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81 |
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82 } |
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83 |
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84 TBool CProcDecoder::InitL(TAudFileProperties aProperties, TInt aTargetSamplingRate, TChannelMode aChannelMode) |
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85 { |
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86 PRINT((_L("CProcDecoder::InitL() in"))); |
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87 |
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88 if (aTargetSamplingRate == 0) |
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89 { |
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90 |
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91 // we are just adding a clip now, check if the source codec is available |
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92 iProperties = aProperties; |
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93 SetSourceCodecL(); |
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94 |
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95 return ETrue; |
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96 } |
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97 |
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98 |
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99 iDecimFactor = 0; // by default |
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100 |
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101 iDoDecoding = ETrue; |
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102 |
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103 if (aProperties.iAudioType == EAudWAV) |
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104 { |
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105 // if input is PCM, no decoding is required, but possibly sample rate conversion |
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106 iDoDecoding = EFalse; |
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107 } |
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108 |
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109 |
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110 |
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111 // set output params |
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112 iToSampleRate = aTargetSamplingRate; |
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113 iToChannels = 1; |
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114 |
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115 if (aChannelMode == EAudStereo) |
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116 { |
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117 iToChannels = 2; |
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118 } |
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119 |
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120 |
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121 //set input params |
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122 iProperties = aProperties; |
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123 |
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124 iFromSampleRate = iProperties.iSamplingRate; |
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125 |
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126 iFromChannels = 1; |
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127 |
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128 if (aProperties.iChannelMode == EAudStereo) |
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129 { |
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130 iFromChannels = 2; |
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131 } |
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132 |
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133 |
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134 iDoSampleRateChannelConversion = EFalse; |
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135 if (iFromSampleRate != iToSampleRate || iProperties.iChannelMode != aChannelMode) |
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136 { |
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137 // sample rate or channel conversion is needed |
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138 iDoSampleRateChannelConversion = ETrue; |
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139 } |
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140 |
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141 |
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142 PRINT((_L("CProcDecoder::PrepareConverterL() in"))); |
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143 |
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144 TInt destInputBufferSize = 0; |
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145 TInt sourceInputBufferSize = 0; |
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146 |
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147 // buffer sizes for input and output |
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148 if ( iProperties.iAudioType == EAudAMR ) |
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149 { |
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150 destInputBufferSize = KAedSizeAMRBuffer; |
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151 sourceInputBufferSize = KAedMaxAMRFrameLength; |
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152 |
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153 } |
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154 else if ( iProperties.iAudioType == EAudAMRWB ) |
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155 { |
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156 destInputBufferSize = KAedSizeAWBBuffer; |
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157 sourceInputBufferSize = KAedMaxAWBFrameLength; |
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158 |
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159 } |
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160 else if (iProperties.iAudioType == EAudAAC_MPEG4 && |
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161 iProperties.iAudioTypeExtension == EAudExtensionTypeNoExtension) |
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162 { |
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163 if ( aProperties.iChannelMode == EAudSingleChannel ) |
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164 { |
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165 destInputBufferSize = KAedSizeAACBuffer; |
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166 sourceInputBufferSize = KAedMaxAACFrameLengthPerChannel; |
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167 } |
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168 else |
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169 { |
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170 destInputBufferSize = KAedSizeAACStereoBuffer; |
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171 sourceInputBufferSize = 2* KAedMaxAACFrameLengthPerChannel; |
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172 } |
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173 |
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174 } |
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175 else if (iProperties.iAudioType == EAudAAC_MPEG4 && |
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176 iProperties.iAudioTypeExtension != EAudExtensionTypeNoExtension) |
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177 { |
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178 if ( iProperties.iAudioTypeExtension == EAudExtensionTypeEnhancedAACPlusParametricStereo ) |
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179 { |
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180 // output is parametric stereo (mono channel, but decoded to stereo) |
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181 destInputBufferSize = KAedSizeAACStereoBuffer*2; // 2 for eAAC+ |
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182 sourceInputBufferSize = KAedMaxAACFrameLengthPerChannel; |
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183 } |
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184 else |
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185 { |
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186 // output is normal stereo |
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187 destInputBufferSize = KAedSizeAACBuffer*2; // 2 for eAAC+ |
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188 sourceInputBufferSize = 2* KAedMaxAACFrameLengthPerChannel; |
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189 } |
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190 |
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191 |
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192 } |
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193 |
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194 else if ( iProperties.iAudioType == EAudMP3 ) |
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195 { |
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196 // mp3 can be directly decoded to mono if necessary |
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197 if (iToChannels == 1) |
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198 { |
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199 iFromChannels = 1; |
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200 } |
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201 |
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202 // check if decimation would be useful |
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203 if (iFromSampleRate == iToSampleRate * 4) |
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204 { |
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205 iFromSampleRate /= 4; |
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206 iDecimFactor = 4; |
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207 } |
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208 |
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209 if (iFromSampleRate == iToSampleRate * 2) |
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210 { |
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211 iFromSampleRate /= 2; |
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212 iDecimFactor = 2; |
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213 } |
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214 |
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215 if ((iToSampleRate == 8000) && ((iFromSampleRate == 48000) || (iFromSampleRate == 44100))) |
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216 { |
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217 iFromSampleRate /= 2; |
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218 iDecimFactor = 2; |
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219 } |
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220 |
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221 const TReal KMP3FrameDurationSec = 0.026; |
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222 |
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223 destInputBufferSize = (iFromSampleRate * KMP3FrameDurationSec + 1); |
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224 destInputBufferSize *= 2; //16 bit samples |
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225 if (iFromChannels == 2) |
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226 { |
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227 destInputBufferSize *= 2; // stereo |
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228 } |
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229 |
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230 sourceInputBufferSize = KAedMaxMP3FrameLength; |
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231 } |
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232 |
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233 else if (iProperties.iAudioType == EAudWAV) |
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234 { |
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235 // frame duration in WAV case is always 20 ms, that is 50 frames per sec |
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236 const TInt KNumberOfFramesInSecond = 50; |
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237 |
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238 destInputBufferSize = iFromSampleRate / KNumberOfFramesInSecond; // Number of samples |
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239 destInputBufferSize *= iFromChannels; |
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240 if ((destInputBufferSize % 2) != 0) destInputBufferSize++; // Must be even |
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241 destInputBufferSize *= 2; // 16-bit samples |
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242 |
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243 sourceInputBufferSize = iProperties.iFrameLen; |
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244 |
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245 TInt sourceBufferSizeAfterExpansion = sourceInputBufferSize; |
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246 if (iProperties.iNumberOfBitsPerSample == 8) |
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247 { |
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248 // 8-bit samples are expanded to 16-bit so twice as big buffer is needed |
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249 sourceBufferSizeAfterExpansion *= 2; |
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250 } |
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251 |
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252 if (sourceBufferSizeAfterExpansion > destInputBufferSize) |
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253 { |
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254 // Make sure there's no overflow |
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255 destInputBufferSize = sourceBufferSizeAfterExpansion; |
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256 } |
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257 } |
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258 |
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259 PRINT((_L("CProcDecoder::InitL() source size: %d, dest size %d"), sourceInputBufferSize, destInputBufferSize)); |
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260 |
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261 |
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262 if ( iSourceInputBuffer ) |
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263 { |
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264 delete iSourceInputBuffer; |
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265 iSourceInputBuffer = NULL; |
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266 } |
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267 // create buffer for input data |
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268 iSourceInputBuffer = CMMFDataBuffer::NewL(sourceInputBufferSize); |
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269 |
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270 |
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271 if ( iDestInputBuffer ) |
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272 { |
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273 delete iDestInputBuffer; |
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274 iDestInputBuffer = NULL; |
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275 } |
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276 |
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277 |
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278 TInt errC = KErrNone; |
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279 if (iDoDecoding) |
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280 { |
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281 SetSourceCodecL(); |
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282 |
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283 // create buffer for output data if necessary |
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284 iDestInputBuffer = CMMFDataBuffer::NewL( destInputBufferSize); |
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285 } |
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286 |
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287 |
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288 |
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289 TInt err = KErrNone; |
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290 |
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291 if (iProperties.iAudioType == EAudAAC_MPEG4) |
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292 { |
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293 // configure AAC plus decoder, used also for AAC |
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294 TRAP( err, ConfigureAACPlusDecoderL()); |
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295 |
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296 } |
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297 |
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298 else if ( iProperties.iAudioType == EAudMP3 ) |
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299 { |
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300 // configure mp3 decoder |
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301 TRAP( err, ConfigureMP3DecoderL()); |
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302 |
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303 } |
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304 if (err != KErrNone || errC != KErrNone) |
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305 { |
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306 User::Leave(KErrNotSupported); |
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307 } |
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308 |
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309 if ( iDoSampleRateChannelConversion ) |
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310 { |
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311 if (iRateConverter) |
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312 { |
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313 delete iRateConverter; |
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314 iRateConverter = NULL; |
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315 } |
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316 |
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317 iRateConverter = CRateConverter::NewL(iFromSampleRate, iToSampleRate, iFromChannels, iToChannels); |
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318 |
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319 if( !iRateConverter->InitL(destInputBufferSize / (2 * iFromChannels)) ) // 16-bit samples |
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320 { |
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321 User::Leave(KErrNotSupported); |
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322 } |
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323 |
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324 TInt sampleRateBufferSize = iRateConverter->GetOutputBufferSize() * 2 * iToChannels; // 16-bit samples |
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325 |
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326 PRINT((_L("CProcDecoder::InitL() sample rate buffer size %d"), sampleRateBufferSize)); |
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327 |
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328 if ( iSampleRateChannelBuffer ) |
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329 { |
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330 delete iSampleRateChannelBuffer; |
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331 iSampleRateChannelBuffer = NULL; |
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332 } |
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333 |
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334 // Buffer for sample rate conversion output |
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335 iSampleRateChannelBuffer = CMMFDataBuffer::NewL(sampleRateBufferSize); |
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336 } |
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337 |
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338 |
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339 iReady = ETrue; |
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340 PRINT((_L("CProcDecoder::InitL() out"))); |
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341 |
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342 |
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343 return ETrue; |
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344 } |
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345 |
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346 TBool CProcDecoder::FillDecBufferL(const HBufC8* aEncFrame, HBufC8*& aDecBuffer) |
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347 { |
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348 PRINT((_L("CProcDecoder::FillDecBufferL() in"))); |
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349 |
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350 iDecBuffer = 0; |
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351 if (iProperties.iAudioType == EAudWAV && !iDoSampleRateChannelConversion) |
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352 { |
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353 |
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354 // if we don't have to do anything for input data -> |
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355 aDecBuffer = HBufC8::NewL(aEncFrame->Size()); |
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356 aDecBuffer->Des().Append(*aEncFrame); |
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357 PRINT((_L("CProcDecoder::FillDecBufferL() out from Wav branch with ETrue"))); |
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358 return ETrue; |
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359 |
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360 } |
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361 |
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362 |
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363 if (!iReady) |
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364 { |
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365 User::Leave(KErrNotReady); |
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366 } |
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367 |
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368 if ( aEncFrame == 0 || !aEncFrame->Length() ) |
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369 { |
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370 // no data in input buffer |
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371 PRINT((_L("CProcDecoder::FillDecBufferL() no input data, out with EFalse"))); |
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372 return EFalse; |
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373 } |
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374 |
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375 if ( (TInt)(aEncFrame->Length() + iSourceInputBuffer->Position() ) > iSourceInputBuffer->Data().MaxLength() ) |
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376 { |
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377 |
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378 ReAllocBufferL( iSourceInputBuffer, aEncFrame->Length() + iSourceInputBuffer->Position() ); |
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379 } |
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380 |
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381 iSourceInputBuffer->Data().SetLength( 0 ); |
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382 iSourceInputBuffer->SetPosition( 0 ); |
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383 |
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384 iSourceInputBuffer->Data().Append( *aEncFrame ); |
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385 iSourceInputBuffer->Data().SetLength( aEncFrame->Length() ); |
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386 |
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387 PRINT((_L("CProcDecoder::FillDecBufferL(), iSourceInputBuffer length = %d"),aEncFrame->Length())); |
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388 if (iDoDecoding) |
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389 { |
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390 iDestInputBuffer->Data().SetLength(0); |
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391 iDestInputBuffer->SetPosition(0); |
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392 |
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393 } |
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394 |
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395 if ( iDoSampleRateChannelConversion ) |
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396 { |
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397 iSampleRateChannelBuffer->Data().SetLength(0); |
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398 iSampleRateChannelBuffer->SetPosition(0); |
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399 } |
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400 |
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401 |
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402 FeedCodecL( iSourceCodec, iSourceInputBuffer, iDestInputBuffer); |
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403 |
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404 if ( aDecBuffer ) |
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405 { |
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406 // in case of EDstNotFilled from decoder, you may end up looping and to avoid memory leaks, you need to |
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407 // delete the previous allocated buffer. Alternative might be to not allocate a new one in this case. |
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408 delete aDecBuffer; |
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409 aDecBuffer = NULL; |
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410 } |
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411 aDecBuffer = iDecBuffer; |
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412 |
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413 if (iDoDecoding) |
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414 { |
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415 iDestInputBuffer->Data().SetLength(0); |
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416 iDestInputBuffer->SetPosition(0); |
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417 |
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418 } |
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419 |
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420 if (iDecBuffer != 0 && iDecBuffer->Size() > 0) |
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421 { |
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422 PRINT((_L("CProcDecoder::FillDecBufferL() out with ETrue"))); |
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423 return ETrue; |
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424 |
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425 } |
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426 |
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427 PRINT((_L("CProcDecoder::FillDecBufferL() out with EFalse"))); |
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428 return EFalse; |
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429 |
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430 } |
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431 |
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432 |
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433 void CProcDecoder::ConstructL() |
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434 { |
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435 |
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436 |
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437 |
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438 } |
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439 |
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440 CProcDecoder::CProcDecoder() |
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441 { |
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442 |
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443 } |
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444 |
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445 |
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446 |
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447 void CProcDecoder::ConfigureAACPlusDecoderL() |
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448 { |
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449 |
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450 |
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451 RArray<TInt> config; |
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452 |
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453 if (iProperties.iAudioTypeExtension == EAudExtensionTypeEnhancedAACPlusParametricStereo) |
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454 { |
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455 |
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456 // for sample rate and channel converter, the output from parametric stereo |
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457 // is stereo, only the AAC part is incoded as mono |
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458 iFromChannels = 2; |
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459 } |
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460 |
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461 |
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462 config.Append( iFromSampleRate); |
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463 config.Append( iFromChannels ); |
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464 |
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465 |
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466 if (iProperties.iAACObjectType == EAudAACObjectTypeLC) |
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467 { |
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468 config.Append( 1 ); // {1 - LC, 3 - LTP} |
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469 } |
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470 else if (iProperties.iAACObjectType == EAudAACObjectTypeLTP) |
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471 { |
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472 config.Append( 3 ); // {1 - LC, 3 - LTP} |
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473 } |
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474 else |
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475 { |
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476 User::Leave(KErrNotSupported); |
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477 } |
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478 |
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479 config.Append( 8192 ); //Size of PCM Samples generated by decoder |
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480 |
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481 config.Append( 1024 ); //Number of PCM Samples generated by decoder per frame |
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482 |
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483 config.Append( iFromSampleRate); //Sampling freq of AAC Code decoder |
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484 |
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485 config.Append( 0 ); // not used ?? |
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486 |
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487 |
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488 config.Append( 0 ); // down sampled mode |
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489 |
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490 config.Append( 16 ); // Sample resolution: 16-bit resolution |
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491 |
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492 |
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493 |
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494 // NOTE!: for some reason, the sample rate of the output from AACPlus decoder used |
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495 // to be a half of the proper output sampling rate. |
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496 // eAAC+ data consists of AAC band + enhancement band. The enhancement band is not included |
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497 // in the rate indicated in the header (iFromSampleRate) |
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498 // There was a workaround for the |
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499 // earlier problem not to increase the sampling rate. |
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500 // Now, with 2006 releases it seems to work, and the sampling rate need to be doubled |
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501 // for the sampling rate converter. |
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502 |
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503 if (iProperties.iAudioTypeExtension == EAudExtensionTypeEnhancedAACPlus) |
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504 { |
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505 iFromSampleRate *= 2; // for sample rate converter -> |
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506 config.Append(iFromSampleRate);// Output sampling frequency |
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507 config.Append( 5 ); //Type of extended object (5=SBR/HE AAC profile; 6=PS is present) |
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508 |
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509 } |
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510 else if (iProperties.iAudioTypeExtension == EAudExtensionTypeEnhancedAACPlusParametricStereo) |
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511 { |
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512 iFromSampleRate *= 2; // for sample rate converter -> |
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513 config.Append(iFromSampleRate);// Output sampling frequency |
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514 config.Append( 6 ); //Type of extended object (5=SBR/HE AAC profile; 6=PS is present) |
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515 } |
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516 else |
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517 { |
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518 // AAC, in&out samplerates are equal, and extended object type is 0 |
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519 config.Append(iFromSampleRate);// Output sampling frequency |
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520 config.Append( 0 ); |
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521 |
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522 } |
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523 |
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524 |
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525 TUid uid ={KUidMmfCodecAudioSettings}; // Use Uid reserved for codec configurations |
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526 TRAPD( err, iSourceCodec->ConfigureL( uid, reinterpret_cast<TDesC8&>(config))); |
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527 |
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528 if ( err != KErrNone ) |
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529 { |
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530 PRINT((_L("CProcDecoder::PrepareConverterL() error, Source codec config failed"))); |
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531 config.Close(); |
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532 User::Leave( err ); |
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533 } |
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534 config.Close(); |
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535 |
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536 } |
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537 |
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538 |
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539 void CProcDecoder::ConfigureMP3DecoderL() |
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540 { |
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541 |
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542 |
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543 RArray<TInt> config; |
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544 |
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545 TInt stereoToMono = 0; |
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546 if (iToChannels == 1 || iFromChannels == 1) |
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547 { |
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548 stereoToMono = 1; |
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549 } |
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550 |
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551 config.Append( stereoToMono); // stereo to mono |
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552 config.Append( 0 ); //iLeftRight?? |
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553 config.Append( iDecimFactor ); //iDecimFactor |
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554 config.Append( 0 ); //iConcealment |
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555 config.Append( 0 ); //iSampleLength?? |
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556 config.Append( 0 ); //iSamplingFrequency |
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557 |
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558 TUid uid ={KUidMmfCodecAudioSettings}; // Use Uid reserved for codec configurations |
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559 TRAPD( err, iSourceCodec->ConfigureL( uid, reinterpret_cast<TDesC8&>(config))); |
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560 |
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561 if ( err != KErrNone ) |
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562 { |
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563 PRINT((_L("CProcDecoder::PrepareConverterL() error, Source codec config failed"))); |
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564 config.Close(); |
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565 User::Leave( err ); |
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566 } |
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567 config.Close(); |
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568 } |
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569 |
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570 |
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571 void CProcDecoder::ReAllocBufferL( CMMFDataBuffer* aBuffer, TInt aNewMaxSize ) |
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572 { |
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573 if ( aBuffer->Data().Length() ) |
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574 { |
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575 TInt position = aBuffer->Position(); |
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576 TInt length = aBuffer->Data().Length(); |
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577 HBufC8* oldData = aBuffer->Data().AllocL(); |
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578 CleanupStack::PushL( oldData ); |
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579 ((CMMFDescriptorBuffer*)aBuffer)->ReAllocBufferL( aNewMaxSize ); |
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580 aBuffer->Data().Copy( *oldData ); |
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581 CleanupStack::PopAndDestroy( oldData ); |
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582 aBuffer->Data().SetLength( length ); |
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583 aBuffer->SetPosition( position ); |
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584 } |
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585 else |
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586 { |
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587 ((CMMFDescriptorBuffer*)aBuffer)->ReAllocBufferL( aNewMaxSize ); |
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588 } |
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589 } |
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590 |
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591 void CProcDecoder::FeedCodecL( CMMFCodec* aCodec, CMMFDataBuffer* aSourceBuffer, CMMFDataBuffer* aDestBuffer ) |
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592 { |
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593 PRINT((_L("CProcDecoder::FeedCodecL() in"))); |
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594 TBool completed = EFalse; |
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595 TCodecProcessResult result; |
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596 |
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597 while ( !completed ) |
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598 { |
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599 |
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600 if (iDoDecoding) |
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601 { |
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602 // decode and check the result |
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603 result = DecodeL(aCodec, aSourceBuffer, aDestBuffer); |
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604 } |
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605 else |
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606 { |
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607 |
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608 // no need for decoding, just perform sample rate and channel conversion |
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609 result.iStatus = TCodecProcessResult::EProcessComplete; |
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610 } |
|
611 |
|
612 |
|
613 switch ( result.iStatus ) |
|
614 { |
|
615 case TCodecProcessResult::EProcessIncomplete: |
|
616 // Not all data from input was consumed (DecodeL updated buffer members), but output was generated |
|
617 |
|
618 if ( iDoSampleRateChannelConversion ) |
|
619 { |
|
620 if ( !iRateConverter ) |
|
621 { |
|
622 PRINT((_L("CProcDecoder::FeedCodecL() error, no rate converter"))); |
|
623 User::Leave( KErrNotFound ); |
|
624 } |
|
625 |
|
626 // Convert buffer size in bytes |
|
627 TUint convertBufferSize = aDestBuffer->Data().Length(); |
|
628 |
|
629 // Number of samples in the buffer |
|
630 TUint inputSamples = convertBufferSize / (2 * iFromChannels); // 16-bit samples |
|
631 |
|
632 PRINT((_L("CProcDecoder::FeedCodecL() converting %d samples"), inputSamples)); |
|
633 |
|
634 if ( convertBufferSize > ( iDestInputBuffer->Data().MaxLength() - iDestInputBuffer->Position() ) ) |
|
635 { |
|
636 ReAllocBufferL( iDestInputBuffer, convertBufferSize + iDestInputBuffer->Position() ); |
|
637 } |
|
638 |
|
639 TInt outputSamples = iRateConverter->ConvertBufferL( (TInt16*) aDestBuffer->Data().Ptr(), |
|
640 (TInt16*) iSampleRateChannelBuffer->Data().Ptr(), inputSamples ); |
|
641 |
|
642 iSampleRateChannelBuffer->Data().SetLength( outputSamples * 2 * iToChannels ); |
|
643 |
|
644 UpdateOutputBufferL(iSampleRateChannelBuffer); |
|
645 |
|
646 } |
|
647 else |
|
648 { |
|
649 if (iDoDecoding) |
|
650 { |
|
651 |
|
652 UpdateOutputBufferL(aDestBuffer); |
|
653 } |
|
654 } |
|
655 |
|
656 break; |
|
657 |
|
658 case TCodecProcessResult::EProcessComplete: |
|
659 // all data from input was used and output was generated |
|
660 if ( iDoSampleRateChannelConversion ) |
|
661 { |
|
662 if ( !iRateConverter ) |
|
663 { |
|
664 PRINT((_L("CProcDecoder::FeedCodecL() error, no rate converter"))); |
|
665 User::Leave( KErrNotFound ); |
|
666 } |
|
667 |
|
668 |
|
669 CMMFDataBuffer* src = 0; |
|
670 |
|
671 if (!iDoDecoding) |
|
672 { |
|
673 |
|
674 // if decoding was not needed, |
|
675 // the input data for SR converter is in aSourceBuffer |
|
676 src = aSourceBuffer; |
|
677 } |
|
678 else |
|
679 { |
|
680 // if decoding was needed, |
|
681 // the input data for SR converter is in iDestBuffer |
|
682 |
|
683 src = iDestInputBuffer; |
|
684 } |
|
685 |
|
686 // Convert buffer size in bytes |
|
687 TUint convertBufferSize = src->Data().Length(); |
|
688 |
|
689 // Number of samples in the buffer |
|
690 TUint inputSamples = convertBufferSize / (2 * iFromChannels); // 16-bit samples |
|
691 |
|
692 PRINT((_L("CProcDecoder::FeedCodecL() converting %d samples"), inputSamples)); |
|
693 |
|
694 if ( convertBufferSize > ( src->Data().MaxLength() - src->Position() ) ) |
|
695 { |
|
696 ReAllocBufferL( src, convertBufferSize + src->Position() ); |
|
697 } |
|
698 |
|
699 TInt outputSamples = iRateConverter->ConvertBufferL( (TInt16*) src->Data().Ptr(), |
|
700 (TInt16*) iSampleRateChannelBuffer->Data().Ptr(), inputSamples ); |
|
701 |
|
702 iSampleRateChannelBuffer->Data().SetLength( outputSamples * 2 * iToChannels ); |
|
703 |
|
704 UpdateOutputBufferL(iSampleRateChannelBuffer); |
|
705 |
|
706 } |
|
707 else |
|
708 { |
|
709 if (iDoDecoding) |
|
710 { |
|
711 UpdateOutputBufferL(aDestBuffer); |
|
712 } |
|
713 |
|
714 } |
|
715 |
|
716 completed = ETrue; |
|
717 break; |
|
718 |
|
719 case TCodecProcessResult::EDstNotFilled: |
|
720 // need more input data, can't fill the output yet; put it back to the empty queue |
|
721 completed = ETrue; |
|
722 |
|
723 break; |
|
724 |
|
725 default: |
|
726 // EEndOfData, EProcessError, EProcessIncompleteRepositionRequest, EProcessCompleteRepositionRequest |
|
727 User::Leave( KErrUnknown ); |
|
728 } |
|
729 |
|
730 } |
|
731 |
|
732 |
|
733 PRINT((_L("CProcDecoder::FeedCodecL() out"))); |
|
734 } |
|
735 |
|
736 TCodecProcessResult CProcDecoder::DecodeL( CMMFCodec* aCodec, CMMFDataBuffer* aInBuffer, CMMFDataBuffer* aOutBuffer) |
|
737 { |
|
738 PRINT((_L("CProcDecoder::DecodeL() in, input pos: %d, length: %d"), aInBuffer->Position(), aInBuffer->Data().Length() )); |
|
739 TCodecProcessResult result; |
|
740 |
|
741 result = aCodec->ProcessL (*aInBuffer, *aOutBuffer); |
|
742 |
|
743 switch (result.iStatus) |
|
744 { |
|
745 case TCodecProcessResult::EProcessComplete: |
|
746 // finished processing source data, all data in sink buffer |
|
747 PRINT((_L("CProcDecoder::FeedCodecL() EProcessComplete"))); |
|
748 aInBuffer->SetPosition( 0 ); |
|
749 aInBuffer->Data().SetLength(0); |
|
750 break; |
|
751 |
|
752 case TCodecProcessResult::EDstNotFilled: |
|
753 // the destination is not full, we need more data. Handled in caller |
|
754 PRINT((_L("CProcDecoder::FeedCodecL() EDstNotFilled"))); |
|
755 aInBuffer->SetPosition( 0 ); |
|
756 aInBuffer->Data().SetLength(0); |
|
757 break; |
|
758 |
|
759 case TCodecProcessResult::EProcessIncomplete: |
|
760 // the sink was filled before all the source was processed |
|
761 PRINT((_L("CProcDecoder::FeedCodecL() EProcessIncomplete"))); |
|
762 aOutBuffer->SetPosition( 0 ); |
|
763 aInBuffer->SetPosition( aInBuffer->Position() + result.iSrcBytesProcessed ); |
|
764 break; |
|
765 |
|
766 default: |
|
767 break; |
|
768 } |
|
769 |
|
770 PRINT((_L("CProcDecoder::DecodeL() out, %d -> %d"),result.iSrcBytesProcessed, result.iDstBytesAdded)); |
|
771 PRINT((_L("CProcDecoder::DecodeL() out, input pos: %d, length: %d"), aInBuffer->Position(), aInBuffer->Data().Length() )); |
|
772 return result; |
|
773 } |
|
774 |
|
775 TBool CProcDecoder::GetIsSupportedSourceCodec() |
|
776 { |
|
777 |
|
778 TFourCC fourCC; |
|
779 TUid uID; |
|
780 |
|
781 if (iProperties.iAudioType == EAudAMR) |
|
782 { |
|
783 fourCC = TFourCC(KMMFFourCCCodeAMR); |
|
784 uID = TUid(KMmfAMRNBDecSWCodecUid); |
|
785 } |
|
786 else if (iProperties.iAudioType == EAudAAC_MPEG4) |
|
787 { |
|
788 // use eAAC+ also for AAC |
|
789 fourCC = TFourCC(KMMFFourCCCodeAACPlus); |
|
790 uID = TUid(KMmfUidCodecEnhAACPlusToPCM16); |
|
791 } |
|
792 else if (iProperties.iAudioType == EAudMP3) |
|
793 { |
|
794 fourCC = TFourCC(KMMFFourCCCodeMP3); |
|
795 uID = TUid(KMmfAdvancedUidCodecMP3ToPCM16); |
|
796 } |
|
797 else if (iProperties.iAudioType == EAudAMRWB) |
|
798 { |
|
799 fourCC = TFourCC(KMMFFourCCCodeAWB); |
|
800 uID = TUid(KMmfAMRWBDecSWCodecUid); |
|
801 } |
|
802 else |
|
803 { |
|
804 //Wav, no codec |
|
805 return ETrue; |
|
806 } |
|
807 |
|
808 |
|
809 |
|
810 _LIT8(emptyFourCCString, " , "); |
|
811 TBufC8<9> fourCCString(emptyFourCCString); |
|
812 TPtr8 fourCCPtr = fourCCString.Des(); |
|
813 TPtr8 fourCCPtr1(&fourCCPtr[0], 4); |
|
814 TPtr8 fourCCPtr2(&fourCCPtr[5], 4 ); |
|
815 |
|
816 TFourCC srcFourCC(' ','P','1','6'); |
|
817 fourCC.FourCC(&fourCCPtr1); |
|
818 srcFourCC.FourCC(&fourCCPtr2); |
|
819 |
|
820 TBool found = EFalse; |
|
821 TRAPD( err, found = CheckIfCodecAvailableL( fourCCPtr , uID)); |
|
822 |
|
823 if (err == KErrNone) |
|
824 { |
|
825 return found; |
|
826 } |
|
827 else |
|
828 { |
|
829 return EFalse; |
|
830 } |
|
831 } |
|
832 |
|
833 |
|
834 void CProcDecoder::SetSourceCodecL() |
|
835 { |
|
836 PRINT((_L("CProcDecoder::SetSourceCodecL() in"))); |
|
837 |
|
838 if ( !GetIsSupportedSourceCodec() ) |
|
839 { |
|
840 PRINT((_L("CProcDecoder::SetSourceCodecL() error, unsupported codec"))); |
|
841 User::Leave( KErrNotSupported ); |
|
842 } |
|
843 |
|
844 if ( iSourceCodec ) |
|
845 { |
|
846 delete iSourceCodec; |
|
847 iSourceCodec = NULL; |
|
848 } |
|
849 |
|
850 TFourCC destFourCC = KMMFFourCCCodePCM16; |
|
851 |
|
852 if (iProperties.iAudioType == EAudAMR) |
|
853 { |
|
854 iSourceCodec = CMMFCodec::NewL( KMmfAMRNBDecSWCodecUid ); |
|
855 |
|
856 } |
|
857 else if (iProperties.iAudioType == EAudAAC_MPEG4) |
|
858 { |
|
859 // use eAAC+ also for AAC |
|
860 iSourceCodec = CMMFCodec::NewL( KMmfUidCodecEnhAACPlusToPCM16 ); |
|
861 |
|
862 } |
|
863 else if (iProperties.iAudioType == EAudMP3) |
|
864 { |
|
865 iSourceCodec = CMMFCodec::NewL( KMmfAdvancedUidCodecMP3ToPCM16 ); |
|
866 |
|
867 } |
|
868 else if (iProperties.iAudioType == EAudAMRWB) |
|
869 { |
|
870 iSourceCodec = CMMFCodec::NewL( KMmfAMRWBDecSWCodecUid ); |
|
871 |
|
872 } |
|
873 else |
|
874 { |
|
875 // Wav, but no codec needed then |
|
876 } |
|
877 |
|
878 iReady = EFalse; |
|
879 |
|
880 PRINT((_L("CProcDecoder::SetSourceCodecL() out"))); |
|
881 } |
|
882 |
|
883 |
|
884 |
|
885 TBool CProcDecoder::CheckIfCodecAvailableL(const TDesC8& aCodecFourCCString, |
|
886 const TUid& aCodecUId ) |
|
887 { |
|
888 PRINT((_L("CProcDecoder::CheckIfCodecAvailableL() in"))); |
|
889 TBool found = EFalse; |
|
890 |
|
891 // Create a TEcomResolverParams structure. |
|
892 TEComResolverParams resolverParams ; |
|
893 resolverParams.SetDataType( aCodecFourCCString ) ; |
|
894 resolverParams.SetWildcardMatch( EFalse ) ; |
|
895 |
|
896 RImplInfoPtrArray plugInArray ; // Array to return matching decoders in (place on cleanupstack _after_ ListImplementationsL() ) |
|
897 |
|
898 TUid UidMmfPluginInterfaceCodec = {KMmfUidPluginInterfaceCodec}; |
|
899 |
|
900 // ListImplementationsL leaves if it cannot find anything so trap the error and ignore it. |
|
901 TRAPD( err, REComSession::ListImplementationsL(UidMmfPluginInterfaceCodec, resolverParams, plugInArray ) ) ; |
|
902 CleanupResetAndDestroyPushL(plugInArray); |
|
903 |
|
904 |
|
905 if (err == KErrNone) |
|
906 { |
|
907 found = EFalse; |
|
908 for ( TInt i = 0; i < plugInArray.Count(); i++) |
|
909 { |
|
910 // there is a match, but 1st we need to ensure it is the one we have tested with, and that have compatible implementation of ConfigureL |
|
911 PRINT((_L("CProcDecoder::CheckIfCodecAvailable() plugin found with Uid 0x%x"), plugInArray[i]->ImplementationUid().iUid )); |
|
912 if ( plugInArray[i]->ImplementationUid() == aCodecUId ) |
|
913 { |
|
914 //match accepted |
|
915 PRINT((_L("CProcDecoder::CheckIfCodecAvailable() plugin accepted"))); |
|
916 found = ETrue; |
|
917 } |
|
918 } |
|
919 } |
|
920 else |
|
921 { |
|
922 PRINT((_L("CProcDecoder::CheckIfCodecAvailable() Error in ListImp.: %d"), err)); |
|
923 //no match |
|
924 found = EFalse; |
|
925 } |
|
926 |
|
927 CleanupStack::PopAndDestroy(); //plugInArray |
|
928 PRINT((_L("CProcDecoder::CheckIfCodecAvailableL() out"))); |
|
929 return found; |
|
930 } |
|
931 |
|
932 TBool CProcDecoder::UpdateOutputBufferL(CMMFDataBuffer* aInBuffer) |
|
933 { |
|
934 if (iDecBuffer == 0) |
|
935 { |
|
936 iDecBuffer = HBufC8::NewL(aInBuffer->BufferSize()); |
|
937 iDecBuffer->Des().Append(aInBuffer->Data()); |
|
938 } |
|
939 else |
|
940 { |
|
941 iDecBuffer = iDecBuffer->ReAlloc(iDecBuffer->Size()+aInBuffer->BufferSize()); |
|
942 iDecBuffer->Des().Append(aInBuffer->Data()); |
|
943 } |
|
944 |
|
945 aInBuffer->Data().SetLength( 0 ); |
|
946 aInBuffer->SetPosition( 0 ); |
|
947 |
|
948 return ETrue; |
|
949 } |
|
950 |