1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 #ifndef PV_2WAY_DATAPATH_H_INCLUDED 19 #define PV_2WAY_DATAPATH_H_INCLUDED 20 21 #ifndef OSCL_ERROR_H_INCLUDED 22 #include "oscl_error.h" 23 #endif 24 25 #ifndef OSCL_VECTOR_H_INCLUDED 26 #include "oscl_vector.h" 27 #endif 28 29 #ifndef PV_2WAY_ENGINE_H_INCLUDED 30 #include "pv_2way_engine.h" 31 #endif 32 33 #ifndef PVMF_NODE_INTERFACE_H_INCLUDED 34 #include "pvmf_node_interface.h" 35 #endif 36 37 #ifndef PVMF_PORT_INTERFACE_H_INCLUDED 38 #include "pvmf_port_interface.h" 39 #endif 40 41 #define MAX_DATAPATH_NODES 10 42 #define MAX_PARENT_PATHS 2 43 #define MAX_DEPENDENT_PATHS 2 44 45 /** 46 * TPVNodeConfigTimeType enum 47 * 48 * An enumeration of when to configure the node 49 **/ 50 typedef enum 51 { 52 EConfigBeforeInit = 0, //Configure node before initialization 53 EConfigBeforeReqInPort, //Configure node before requesting input port 54 EConfigBeforeReqOutPort, //Configure node before requesting output port 55 EConfigBeforePrepare, //Configure node before preparing 56 EConfigBeforeStart, //Configure node before starting 57 EMaxConfigTimeTypes 58 } TPVNodeConfigTimeType; 59 60 /** 61 * TPV2WayDatapathType enum 62 * 63 * An enumeration of types of data paths 64 **/ 65 typedef enum 66 { 67 EUnknownDatapath = 0, 68 EEncodeDatapath, 69 EDecodeDatapath, 70 EMuxDatapath, 71 ERecDatapath, 72 EPreviewDatapath, 73 EMaxDatapathType 74 } TPV2WayDatapathType; 75 76 /** 77 * TPV2WayDatapathState enum 78 * 79 * An enumeration of broad external states of the data path 80 **/ 81 typedef enum 82 { 83 EClosed = 0, 84 EOpening, 85 EOpened, 86 EPausing, 87 EPaused, 88 EUnpausing, 89 EClosing, 90 EMaxDataPathStates 91 } TPV2WayDatapathState; 92 93 /** 94 * TPVPortFormatSetType enum 95 * 96 * An enumeration of how the format type of the port is determined 97 **/ 98 typedef enum 99 { 100 EUserDefined = 0, //User defines format type for port 101 EConnectedPortFormat, //Format is set to the connecting port's format 102 EUseOtherNodePortFormat, //Format is set to whatever the other node port is set to (nodes in a datapath have only 2 ports) 103 EAppDefined, //Format is pre-set during RequestPort. Does not need to be set 104 EMaxFormatSetTypes 105 } TPVPortFormatSetType; 106 107 108 /** 109 * CPV2WayPortPair Class 110 * 111 * Specifies a pair of node ports that describe a data connection and the status of the ports. 112 **/ 113 class CPV2WayPortPair 114 { 115 public: 116 CPV2WayPortPair() : iIsConnected(false) {}; 117 118 ~CPV2WayPortPair() {}; 119 120 bool Connect(); 121 bool Disconnect(); 122 123 CPV2WayPort iSrcPort; 124 CPV2WayPort iDestPort; 125 bool iIsConnected; 126 }; 127 128 /** 129 * CPVDatapathPort Class 130 * 131 * Describes how to use a port in a datatpath. 132 **/ 133 class CPVDatapathPort 134 { 135 public: 136 CPVDatapathPort() : iPortTag(0), 137 iRequestPortState(EPVMFNodeInitialized), 138 iCanCancelPort(false), 139 iPortSetType(EUserDefined), 140 iFormatType(PVMF_MIME_FORMAT_UNKNOWN), 141 iDefaultFormatType(PVMF_MIME_FORMAT_UNKNOWN), 142 iPortPair(NULL) 143 { 144 }; 145 146 CPVDatapathPort(const CPVDatapathPort &aPort) : iPortTag(aPort.iPortTag), 147 iRequestPortState(aPort.iRequestPortState), 148 iRequestPortAnytime(aPort.iRequestPortAnytime), 149 iCanCancelPort(aPort.iCanCancelPort), 150 iPortSetType(aPort.iPortSetType), 151 iFormatType(aPort.iFormatType), 152 iDefaultFormatType(aPort.iDefaultFormatType), 153 154 iPortPair(aPort.iPortPair) 155 { 156 }; 157 158 ~CPVDatapathPort() {}; 159 160 CPVDatapathPort& operator=(const CPVDatapathPort& a); 161 162 int32 iPortTag; // The port tag 163 TPVMFNodeInterfaceState iRequestPortState; //State of node to request/release port 164 bool iRequestPortAnytime; //Can port be requested in any node state 165 bool iCanCancelPort; // Can the request port command be cancelled for the port 166 TPVPortFormatSetType iPortSetType; // How to determine format type for the port 167 PVMFFormatType iFormatType; // Sets format type for the port 168 PVMFFormatType iDefaultFormatType; // In the case the CapConfig interface is stupid 169 CPV2WayPortPair *iPortPair; // The out port will be the iSrcPort of the port pair 170 // The in port will be the iDestPort of the port pair 171 }; 172 173 /** 174 * CPVDatapathNode Class 175 * 176 * Describes how a node is used in a datatpath. 177 **/ 178 class CPVDatapathNode 179 { 180 public: 181 CPVDatapathNode() : iConfigure(NULL), 182 iConfigTime(EConfigBeforeInit), 183 iCanNodePause(false), 184 iLoggoffOnReset(false), 185 iOriginalState(EPVMFNodeIdle), 186 iDatapathCloseState(EPVMFNodeLastState), 187 iCommandIssued(false) 188 {}; 189 190 CPVDatapathNode(const CPVDatapathNode &aNode) : iNode(aNode.iNode), 191 iConfigure(aNode.iConfigure), 192 iConfigTime(aNode.iConfigTime), 193 iCanNodePause(aNode.iCanNodePause), 194 iLoggoffOnReset(aNode.iLoggoffOnReset), 195 iIgnoreNodeState(aNode.iIgnoreNodeState), 196 iOriginalState(aNode.iOriginalState), 197 iDatapathCloseState(aNode.iDatapathCloseState), 198 iInputPort(aNode.iInputPort), 199 iOutputPort(aNode.iOutputPort), 200 iCommandIssued(aNode.iCommandIssued) 201 {}; 202 203 204 ~CPVDatapathNode() {}; 205 206 CPVDatapathNode& operator=(const CPVDatapathNode& a); 207 208 bool CloseableState() 209 { 210 PVMFNodeInterface * nodeIFace = (PVMFNodeInterface *)iNode; 211 if (iDatapathCloseState != EPVMFNodeLastState && 212 nodeIFace->GetState() == iDatapathCloseState) 213 return true; 214 if (iDatapathCloseState == EPVMFNodeLastState && 215 nodeIFace->GetState() == iOriginalState) 216 return true; 217 return false; 218 } 219 220 TPV2WayNode iNode; // Actual node 221 CPV2WayNodeConfigurationObserver *iConfigure; // Node configuration observer, called when config time is reached 222 TPVNodeConfigTimeType iConfigTime; // When to configure node 223 bool iCanNodePause; // Is the node capable of pausing 224 bool iLoggoffOnReset; // Does node need to logoff after datapath is reset 225 bool iIgnoreNodeState; // Flag for that specifies whether the datapath changes the state of the node 226 TPVMFNodeInterfaceState iOriginalState; // The state of the node when it is added to the datapath 227 TPVMFNodeInterfaceState iDatapathCloseState; // The state in which the node should be in before the 228 // datapath closes 229 CPVDatapathPort iInputPort; 230 CPVDatapathPort iOutputPort; 231 bool iCommandIssued; 232 }; 233 234 235 class CPV2WayDatapath : public HeapBase, public CPV2WayNodeCommandObserver 236 { 237 private: 238 TPV2WayNode* iNode; 239 public: 240 CPV2WayDatapath(PVLogger *aLogger, 241 TPV2WayDatapathType aType, 242 PVMFFormatType aFormat, 243 CPV324m2Way *a2Way) : iType(aType), 244 iState(EClosed), 245 iStateBeforeClose(EClosed), 246 iFormat(aFormat), 247 iSourceSinkFormat(PVMF_MIME_FORMAT_UNKNOWN), 248 i2Way(a2Way), 249 iLogger(aLogger), 250 iAllPortsConnected(false) 251 {}; 252 253 virtual ~CPV2WayDatapath() {}; 254 255 bool IsPortInDatapath(PVMFPortInterface *aPort); 256 bool IsNodeInDatapath(PVMFNodeInterface *aNode); 257 bool ResetDatapath(); 258 bool AddNode(const CPVDatapathNode &aNode); 259 bool Open(); 260 bool Close(); 261 bool Pause(); 262 bool Resume(); 263 264 bool AddParentDatapath(CPV2WayDatapath &aDatapath); 265 bool AddDependentDatapath(CPV2WayDatapath &aDatapath); 266 267 TPV2WayDatapathState GetState() 268 { 269 return iState; 270 } 271 void SetFormat(PVMFFormatType aFormatType) 272 { 273 iFormat = aFormatType; 274 } 275 PVMFFormatType GetFormat() 276 { 277 return iFormat; 278 } 279 280 void CommandHandler(PV2WayNodeCmdType aType, const PVMFCmdResp& aResponse); 281 282 void CheckPath(); 283 void SetFormatSpecificInfo(uint8* fsi, uint16 fsi_len); 284 uint8* GetFormatSpecificInfo(uint32* len); 285 void SetSourceSinkFormat(PVMFFormatType aFormatType); 286 PVMFFormatType GetSourceSinkFormat() const; 287 protected: 288 void ConstructL(); 289 290 bool SendNodeCmd(PV2WayNodeCmdType cmd, int i); 291 int SetParametersSync(PvmiCapabilityAndConfig * configPtr, 292 PvmiKvp* portParams, 293 PvmiKvp*& portParamsReturn); 294 bool CheckNodePorts(bool& aCheckPort, int i); 295 296 void SetPort(CPV2WayPort &aDatapathPort, PVMFPortInterface *aPort) 297 { 298 aDatapathPort.SetPort(aPort); 299 } 300 301 void SetState(TPV2WayDatapathState aState); 302 303 bool IsDatapathNodeClosed(CPVDatapathNode &aNode); 304 bool CheckNodePortsL(CPVDatapathNode &aNode); 305 PVMFStatus PortStatusChange(PVMFNodeInterface *aNode, PVMFCommandId aId, PVMFPortInterface *aPort); 306 CPV2WayPort *RetrievePort(PVMFNodeInterface *aNode, PVMFCommandId aId); 307 PVMFStatus ReleaseNodePorts(CPVDatapathNode &aNode); 308 void CloseNodePorts(CPVDatapathNode &aNode); 309 PVMFCommandId SendNodeCmdL(PV2WayNodeCmdType aCmd, 310 CPVDatapathNode &aNode, 311 void *aParam = NULL); 312 313 PVMFStatus CheckConfig(TPVNodeConfigTimeType aConfigTime, CPVDatapathNode &aNode); 314 315 //Can be overriden in derived datapaths 316 virtual void CheckOpen(); 317 virtual void CheckPause(); 318 virtual void CheckResume(); 319 virtual void CheckClosed(); 320 321 virtual void OpenComplete() = 0; 322 virtual void PauseComplete() = 0; 323 virtual void ResumeComplete() = 0; 324 virtual void CloseComplete() = 0; 325 326 virtual void DatapathError() = 0; 327 328 virtual bool CheckPathSpecificOpen() 329 { 330 return true; 331 } 332 virtual bool PathSpecificClose() 333 { 334 return true; 335 } 336 virtual bool CheckPathSpecificStart() 337 { 338 return true; 339 } 340 341 virtual void DependentPathClosed(CPV2WayDatapath *aDependentPath); 342 bool HaveAllDependentPathsClosed(); 343 bool IsParentClosing(); 344 void NotifyParentPaths(); 345 virtual bool ParentIsClosing(); 346 virtual bool SingleNodeOpen() 347 { 348 return false; 349 } 350 351 PVMFStatus GetKvp(PVMFPortInterface &aPort, bool aInput, 352 PvmiKvp*& aKvp, int& aNumKvpElem, OsclAny*& aconfigPtr); 353 PVMFFormatType GetPortFormatType(PVMFPortInterface& aPort, 354 bool aInput, PVMFPortInterface* aOtherPort); 355 356 TPV2WayDatapathType iType; 357 TPV2WayDatapathState iState; 358 TPV2WayDatapathState iStateBeforeClose; 359 // The codec type associated with this datapath 360 PVMFFormatType iFormat; 361 // The format type of the terminating source/sink 362 PVMFFormatType iSourceSinkFormat; 363 364 CPV324m2Way *i2Way; 365 PVLogger *iLogger; 366 bool iAllPortsConnected; 367 368 Oscl_Vector<CPVDatapathNode, BasicAlloc> iNodeList; 369 Oscl_Vector<CPV2WayPortPair, BasicAlloc> iPortPairList; 370 371 //List of datapaths this datapath depends on 372 Oscl_Vector<CPV2WayDatapath *, BasicAlloc> iParentPathList; 373 //List of datapaths that depend on this datapath 374 Oscl_Vector<CPV2WayDatapath *, BasicAlloc> iDependentPathList; 375 // Format specific info associated with this datapath 376 uint8* iFsi; 377 uint32 iFsiLen; 378 }; 379 380 #endif //PV_2WAY_DATAPATH_H_INCLUDED 381 382 383
