1 /* |
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2 * Copyright (c) 2007 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 the License "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: Class that reads RTP packets from propriatary file format.* |
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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 #ifndef CCRRTPFILESOURCE_H |
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21 #define CCRRTPFILESOURCE_H |
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22 |
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23 // INCLUDES |
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24 #include "CCRPacketSourceBase.h" |
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25 #include <ipvideo/MRtpFileReadObserver.h> |
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26 #include <ipvideo/MRtpFileWriteObserver.h> |
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27 |
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28 // CONSTANTS |
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29 // None |
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30 |
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31 // MACROS |
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32 // None |
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33 |
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34 // DATA TYPES |
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35 // None |
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36 |
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37 // FORWARD DECLARATIONS |
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38 class CRtpClipHandler; |
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39 |
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40 // CLASS DECLARATION |
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41 |
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42 /** |
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43 * Class that negotiaties RTP stream using RTSP. |
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44 * |
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45 * @lib CommonRecordingEngine.lib |
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46 * @since Series 60 3.0 |
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47 */ |
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48 class CCRRtpFileSource : public CCRPacketSourceBase, |
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49 public MRtpFileReadObserver |
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50 { |
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51 |
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52 public: // Constructors and destructor |
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53 |
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54 /** |
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55 * Two-phased constructor. |
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56 * @return CCRRtpFileSource pointer to CCRRtpFileSource class |
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57 */ |
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58 static CCRRtpFileSource* NewL( const SCRRtpPlayParams& aParams, |
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59 CRtpClipHandler*& aClipHandler, |
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60 MCRStreamObserver& aSessionObs, |
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61 CCRStreamingSession& aOwningSession ); |
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62 |
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63 /** |
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64 * Two-phased constructor. |
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65 * @return CCRRtpFileSource pointer to CCRRtpFileSource class |
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66 */ |
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67 static CCRRtpFileSource* NewL( const RFile& aRtpHandle, |
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68 CRtpClipHandler*& aClipHandler, |
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69 MCRStreamObserver& aSessionObs, |
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70 CCRStreamingSession& aOwningSession ); |
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71 |
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72 /** |
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73 * Destructor. |
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74 */ |
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75 virtual ~CCRRtpFileSource(); |
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76 |
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77 public: // New functions |
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78 |
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79 /** |
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80 * |
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81 * @since Series 60 3.0 |
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82 * @param none. |
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83 * @return none. |
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84 */ |
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85 //void PunchPacketsSent(); |
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86 |
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87 private: // Constructors and destructor |
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88 |
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89 /** |
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90 * C++ default constructor. |
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91 * @param aSessionObs a session observer. |
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92 * @param aOwningSession a owning session. |
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93 */ |
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94 CCRRtpFileSource( CRtpClipHandler*& aClipHandler, |
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95 MCRStreamObserver& aSessionObs, |
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96 CCRStreamingSession& aOwningSession ); |
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97 |
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98 /** |
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99 * By default Symbian 2nd phase constructor is private. |
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100 */ |
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101 void ConstructL( const SCRRtpPlayParams& aParams ); |
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102 |
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103 /** |
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104 * By default Symbian 2nd phase constructor is private. |
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105 */ |
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106 void ConstructL( const RFile& aRtpHandle ); |
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107 |
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108 private: // Methods from base classes |
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109 |
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110 /** |
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111 * From CCRPacketSourceBase. |
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112 * Method for acquiring sdp. |
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113 * @since Series 60 3.0 |
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114 * @param aSdp is string pointer that will be .Set() to contain the sdp. |
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115 * If no sdp is available no .Set() will occur. |
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116 * @return KErrNotReady if no sdp available. |
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117 */ |
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118 TInt GetSdp( TPtrC8& aSdp ); |
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119 |
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120 /** |
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121 * From CCRPacketSourceBase. |
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122 * Method for setting buffers to packet source |
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123 * @since Series 60 3.0 |
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124 * @param aBuffer is buffer to be set. |
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125 * @return none. |
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126 */ |
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127 void SetBuffer( CCRPacketBuffer* aBuffer ); |
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128 |
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129 /** |
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130 * From CCRPacketSourceBase. |
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131 * Post action after source initialized. |
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132 * @since Series 60 3.0 |
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133 * @param none. |
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134 * @return none. |
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135 */ |
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136 void PostActionL(); |
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137 |
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138 /** |
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139 * From CCRPacketSourceBase. |
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140 * Method for requesting more packets to buffer. |
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141 * @since Series 60 3.0 |
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142 * @param none. |
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143 * @return none. |
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144 */ |
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145 void Restore(); |
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146 |
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147 /** |
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148 * From CCRPacketSourceBase. |
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149 * Method for ordering "play" for packet source. |
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150 * @since Series 60 3.0 |
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151 * @param aStartPos is start position in seconds. |
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152 * @param aEndPos is end position in seconds. |
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153 * @return a system wide error code. |
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154 */ |
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155 TInt Play( const TReal& aStartPos, |
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156 const TReal& aEndPos ); |
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157 |
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158 /** |
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159 * From CCRPacketSourceBase. |
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160 * Method for stopping play from source. |
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161 * @since Series 60 3.0 |
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162 * @param none. |
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163 * @return a system wide error code. |
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164 */ |
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165 TInt Stop(); |
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166 |
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167 /** |
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168 * From CCRPacketSourceBase. |
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169 * Setter for current position. |
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170 * @since Series 60 3.0 |
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171 * @param aPosition a postion of playback. |
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172 * @return a system wide error code. |
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173 */ |
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174 TInt SetPosition( const TInt64 aPosition ); |
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175 |
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176 /** |
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177 * From CCRPacketSourceBase. |
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178 * Getter for current position. |
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179 * @since Series 60 3.0 |
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180 * @param aPosition a postion of playback. |
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181 * @param aDuration a duration of playback. |
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182 * @return a system wide error code. |
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183 */ |
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184 TInt GetPosition( TInt64& aPosition, |
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185 TInt64& aDuration ); |
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186 |
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187 /** |
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188 * From MRtpFileReadObserver. |
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189 * Called when RTP packets group readed from a file. |
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190 * @since Series 60 3.0 |
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191 * @param aGroup a RTP data readed from a file. |
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192 * @param aGroupTime a group time in milli seconds. |
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193 * @param aLastGroup a indication of last group in clip. |
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194 * @return none. |
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195 */ |
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196 void GroupReadedL( const TDesC8& aGroup, |
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197 const TUint aGroupTime, |
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198 const TBool aLastGroup ); |
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199 |
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200 /** |
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201 * From MRtpFileReadObserver. |
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202 * File handler status of playback. |
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203 * @since Series 60 3.0 |
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204 * @param aStatus a status of file reading. |
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205 * @return none. |
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206 */ |
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207 void ReadStatus( TInt aStatus ); |
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208 |
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209 private: // New methods |
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210 |
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211 /** |
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212 * Method for requesting more packets to buffer. |
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213 * @since Series 60 3.0 |
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214 * @param aForce if true, forces read packets even buffer more than threshold. |
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215 * @return a system wide error code. |
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216 */ |
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217 TInt NextClipGroup( const TBool aForce ); |
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218 |
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219 /** |
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220 * Setter for current position of .rtp clip. |
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221 * @since Series 60 3.0 |
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222 * @param aPosition a postion of playback. |
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223 * @return a system wide error code. |
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224 */ |
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225 TInt RtpPosition( const TUint aPosition ); |
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226 |
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227 /** |
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228 * Converts old RTP propriatary format packet type to stream id. |
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229 * @since Series 60 3.0 |
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230 * @param aType a packet type from a clip. |
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231 * @param aStream a stream id to update. |
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232 * @return true if packet valid, otherwise false. |
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233 */ |
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234 TBool TypeToStream( const MRtpFileWriteObserver::TRtpType& aType, |
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235 MCRPacketSource::TCRPacketStreamId& aStream ); |
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236 |
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237 private: // Data |
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238 |
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239 /** |
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240 * Clip handler for RTP clip. |
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241 */ |
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242 CRtpClipHandler*& iClipHandler; |
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243 |
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244 /** |
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245 * Session observer. |
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246 */ |
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247 MCRStreamObserver& iSessionObs; |
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248 |
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249 /** |
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250 * SDP data. |
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251 */ |
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252 HBufC8* iSdp; |
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253 |
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254 /** |
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255 * Time of initialy readed group. |
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256 */ |
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257 TUint iInitialTime; |
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258 |
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259 /** |
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260 * Pause packet sent to sink from a clip. |
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261 */ |
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262 TInt iClipPauseSent; |
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263 |
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264 }; |
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265 |
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266 #endif // CCRRTPFILESOURCE_H |
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267 |
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268 // End of file |
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