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1 /* |
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2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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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 #ifndef MUSHENGCLIPSESSION_H |
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20 #define MUSHENGCLIPSESSION_H |
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21 |
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22 // USER |
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23 #include "musengmceoutsession.h" |
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24 #include "musunittesting.h" |
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25 |
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26 |
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27 class MMusEngClipSessionObserver; |
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28 class CMusEngLiveSession; |
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29 class CMceFileSource; |
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30 class CMceAudioStream; |
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31 class CMceVideoStream; |
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32 class CMceAudioCodec; |
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33 |
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34 |
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35 class CMusEngClipSession : public CMusEngMceOutSession |
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36 { |
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37 MUS_UNITTEST( UT_CMusEngClipSession ) |
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38 |
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39 public: |
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40 |
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41 /** |
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42 * |
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43 */ |
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44 IMPORT_C static CMusEngClipSession* NewL( |
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45 const TRect& aRect, |
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46 MMusEngSessionObserver& aSessionObserver, |
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47 MMusEngOutSessionObserver& aOutSessionObserver, |
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48 MMusEngClipSessionObserver& aClipSessionObserver, |
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49 TUint aSipProfileId = 0 ); |
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50 |
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51 /** |
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52 * |
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53 */ |
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54 ~CMusEngClipSession(); |
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55 |
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56 |
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57 public: // new API |
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58 |
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59 /** |
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60 * Sets file to be shared during session. |
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61 * @pre File cannot be DRM protected |
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62 * @post InviteL can be called |
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63 * @leave One of the system wide error codes |
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64 * @param aFileName Name of the file to be shared |
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65 */ |
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66 IMPORT_C void SetClipL( const TDesC& aFileName ); |
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67 |
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68 /** |
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69 * Starts or stops fast forwarding the clip. Clip is left paused after |
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70 * stopping the fast forwarding. |
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71 * @pre Session is ongoing |
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72 * @param aUseFFWD ETrue to start FFWD, EFalse to stop it. |
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73 */ |
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74 IMPORT_C void FastForwardL( TBool aUseFFWD ); |
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75 |
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76 /** |
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77 * Starts or stops fast rewinding the clip. Clip is left paused after |
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78 * stopping the fast rewinding. |
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79 * @pre Session is ongoing |
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80 * @param aUseFRWD ETrue to start FRWD, EFalse to stop it. |
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81 */ |
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82 IMPORT_C void FastRewindL( TBool aUseFRWD ); |
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83 |
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84 /** |
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85 * Returns current position as time interval. |
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86 */ |
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87 IMPORT_C TTimeIntervalSeconds PositionL(); |
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88 |
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89 /** |
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90 * Returns duration of current clip as time interval |
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91 */ |
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92 IMPORT_C TTimeIntervalSeconds DurationL(); |
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93 |
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94 /** |
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95 * |
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96 */ |
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97 IMPORT_C void SetPositionL (const TTimeIntervalSeconds &aPosition); |
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98 |
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99 /** |
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100 * Starts transcoding of file. After the transcoding is complete, |
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101 * file to be shared is changed into the transcoded file. |
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102 * @pre MMusEngClipSessionObserver::TranscodingNeeded is called |
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103 * @param aFileName Name of the transcoding output file. |
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104 */ |
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105 IMPORT_C void TranscodeL( const TFileName& aFileName ); |
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106 |
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107 /** |
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108 * Cancels transcoding of file. |
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109 * @pre TranscodeL has been called succesfully and transcoding |
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110 * is not completed |
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111 */ |
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112 IMPORT_C void CancelTranscodeL(); |
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113 |
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114 |
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115 public: // implementation of virtual API from CMusEngMceOutSession |
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116 |
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117 /** |
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118 * Resumes previously paused session. |
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119 * Continues showing file on display, resumes clip's audio, continues |
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120 * playing file and enables streaming to network. |
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121 * @leave KErrNotReady if called during FFWD or FRWD |
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122 */ |
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123 IMPORT_C void PlayL(); |
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124 |
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125 /** |
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126 * Pauses session. |
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127 * Holds display, mutes clip's audio, pauses file and |
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128 * disables all streaming to network. |
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129 * @leave KErrNotReady if called during FFWD or FRWD |
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130 */ |
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131 IMPORT_C void PauseL(); |
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132 |
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133 /** |
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134 * Tells whether session is paused or not |
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135 */ |
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136 IMPORT_C TBool IsPlayingL(); |
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137 |
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138 |
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139 protected: // implementation of virtual helper from CMusEngMceOutSession |
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140 |
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141 /** |
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142 * @param aLocalBundle All local streams are supposed to be added to |
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143 * this bundle |
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144 */ |
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145 void CompleteSessionStructureL( CMceStreamBundle& aLocalBundle ); |
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146 |
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147 |
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148 protected: // overrides function from CMusEngMceOutSession |
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149 |
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150 /** |
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151 * Checks that there is no need for transcoding before calling |
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152 * overridden base class variant of this function. |
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153 */ |
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154 void EstablishSessionL(); |
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155 |
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156 |
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157 private: // from MMceStreamObserver, |
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158 // overrides the function in CMusEngMceSession |
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159 |
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160 /** |
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161 * The state of the stream has changed. |
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162 * |
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163 * @param aStream, the stream that has changed. |
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164 */ |
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165 void StreamStateChanged( CMceMediaStream& aStream ); |
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166 |
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167 /** |
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168 * The state of the source has changed. |
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169 * @param aStream, the stream that uses the source. |
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170 * @param aSource, the source that has changed. |
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171 */ |
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172 void StreamStateChanged( CMceMediaStream& aStream, |
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173 CMceMediaSource& aSource ); |
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174 |
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175 private: |
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176 |
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177 /** |
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178 * |
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179 */ |
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180 CMusEngClipSession( MMusEngSessionObserver& aSessionObserver, |
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181 MMusEngOutSessionObserver& aOutSessionObserver, |
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182 MMusEngClipSessionObserver& aClipSessionObserver, |
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183 const TRect& aRect ); |
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184 |
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185 /** |
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186 * @leave KErrPermissionDenied if file is DRM protected |
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187 */ |
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188 void ConstructL( TUint aSipProfileId ); |
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189 |
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190 |
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191 private: // HELPERS |
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192 |
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193 /** |
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194 * |
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195 */ |
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196 TBool IsProtectedFileL( const TDesC& aClipFile ); |
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197 |
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198 void AddAmrCodecL( CMceAudioStream& aAudioStream ); |
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199 |
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200 void AddVideoCodecL( CMceVideoStream& aVideoStream ); |
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201 |
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202 TBool HasClipEnded(); |
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203 |
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204 /** |
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205 * Returns current position as microseconds. |
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206 * @param aActualPosition ETrue if actual position is wanted, EFalse |
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207 * if buffering time is taken in count. |
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208 */ |
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209 TTimeIntervalMicroSeconds PositionMicroSecondsL( TBool aActualPosition = EFalse ); |
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210 |
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211 /** |
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212 * Constructs audio stream structure during session completion and adds |
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213 * it to session. |
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214 * @param aLocalBundle All local streams are supposed to be added to |
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215 * this bundle |
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216 * @pre iSession != NULL |
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217 */ |
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218 void ConstructAudioStructureL( CMceStreamBundle& aLocalBundle ); |
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219 |
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220 void DetermineBufferingPeriod( CMceMediaStream& aStream ); |
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221 |
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222 TTimeIntervalMicroSeconds GetVideoSinkRelativeFilePos( |
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223 const TTimeIntervalMicroSeconds& aActualPosition, |
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224 const TTimeIntervalMicroSeconds& aDuration ); |
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225 |
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226 TBool IsH264Supported() const; |
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227 |
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228 private: // Data |
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229 |
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230 /** |
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231 * Reference to live session observer interface. |
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232 */ |
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233 MMusEngClipSessionObserver& iClipSessionObserver; |
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234 |
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235 TFileName iFileName; |
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236 |
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237 TBool iTranscodingOngoing; |
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238 |
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239 TTime iFFWDStartTime; |
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240 TTime iFRWDStartTime; |
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241 |
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242 TTime iBufferingStartedTime; |
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243 TTimeIntervalMicroSeconds iBufferingPeriod; |
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244 |
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245 TTimeIntervalMicroSeconds iDelayFileEndingPos; |
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246 TTimeIntervalMicroSeconds iPreviousPos; |
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247 TBool iClipEnded; |
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248 |
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249 TFileName iTranscodingDestFileName; |
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250 TBool iRewindedToBeginning; |
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251 |
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252 }; |
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253 |
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254 #endif |
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255 |