src/SVTK/SVTK_Recorder.cxx

   1 //  Copyright (C) 2007-2008  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 //  Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 //  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 //  This library is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU Lesser General Public
   8 //  License as published by the Free Software Foundation; either
   9 //  version 2.1 of the License.
  10 //
  11 //  This library is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 //  Lesser General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU Lesser General Public
  17 //  License along with this library; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 //  See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22 #include "SVTK_Recorder.h"
  23
  24 #include "SVTK_ImageWriter.h"
  25 #include "SVTK_ImageWriterMgr.h"
  26
  27 #include <vtkObjectFactory.h>
  28 #include <vtkObject.h>
  29 #include <vtkCallbackCommand.h>
  30 #include <vtkRenderWindow.h>
  31 #include <vtkTimerLog.h>
  32 #include <vtkWindowToImageFilter.h>
  33 #include <vtkJPEGWriter.h>
  34 #include <vtkImageData.h>
  35
  36 #include <sstream>
  37 #include <iomanip>
  38 #include <iostream>
  39
  40 #ifndef WIN32
  41 #include <unistd.h>
  42 #endif
  43
  44 #include <QApplication>
  45 #include <QFileInfo>
  46 #include <QDir>
  47
  48 //#include "utilities.h"
  49
  50 #ifdef _DEBUG_
  51 static int MYDEBUG = 0;
  52 #else
  53 static int MYDEBUG = 0;
  54 #endif
  55
  56
  57 namespace
  58 {
  59   //----------------------------------------------------------------------------
  60   inline
  61   void
  62   GetNameJPEG(const std::string& thePreffix,
  63               const int theIndex,
  64               std::string& theName)
  65   {
  66     using namespace std;
  67     ostringstream aStream;
  68     aStream<<thePreffix<<"_"<<setw(6)<<setfill('0')<<theIndex<<".jpeg";
  69     theName = aStream.str();
  70   }
  71 }
  72
  73 //----------------------------------------------------------------------------
  74 vtkCxxRevisionMacro(SVTK_Recorder,"$Revision$");
  75 vtkStandardNewMacro(SVTK_Recorder);
  76
  77
  78 //----------------------------------------------------------------------------
  79 SVTK_Recorder
  80 ::SVTK_Recorder():
  81   myRenderWindow(NULL),
  82   myState(SVTK_Recorder_Stop),
  83   myNbFPS(5.5),
  84   myQuality(100),
  85   myProgressiveMode(true),
  86   myUseSkippedFrames(true),
  87   myErrorStatus(0),
  88   myCommand(vtkCallbackCommand::New()),
  89   myPriority(0.0),
  90   myTimeStart(0.0),
  91   myFrameIndex(0),
  92   myPaused(0),
  93   myFilter(vtkWindowToImageFilter::New()),
  94   myWriterMgr(new SVTK_ImageWriterMgr),
  95   myNbWrittenFrames(0),
  96   myNameAVIMaker("jpeg2yuv")
  97 {
  98   myCommand->SetClientData(this);
  99   myCommand->SetCallback(SVTK_Recorder::ProcessEvents);
 100 }
 101
 102
 103 //----------------------------------------------------------------------------
 104 SVTK_Recorder
 105 ::~SVTK_Recorder()
 106 {
 107   myCommand->Delete();
 108   myFilter->Delete();
 109   delete myWriterMgr;
 110 }
 111
 112
 113 //----------------------------------------------------------------------------
 114 void
 115 SVTK_Recorder
 116 ::CheckExistAVIMaker()
 117 {
 118   myErrorStatus = 0;
 119   using namespace std;
 120   ostringstream aStream;
 121   aStream<<"which "<<myNameAVIMaker<<" >& /dev/null";
 122   std::string anAVIMakeCheck = aStream.str();
 123   int iErr = system(anAVIMakeCheck.c_str());
 124   if(iErr != 0)
 125     myErrorStatus = 127;
 126 }
 127
 128
 129 //----------------------------------------------------------------------------
 130 void
 131 SVTK_Recorder
 132 ::SetName(const char* theName)
 133 {
 134   myName = theName;
 135 }
 136
 137 const char*
 138 SVTK_Recorder::Name() const
 139 {
 140   return myName.c_str();
 141 }
 142
 143
 144 //----------------------------------------------------------------------------
 145 void
 146 SVTK_Recorder
 147 ::SetNbFPS(const double theNbFPS)
 148 {
 149   myNbFPS = theNbFPS;
 150 }
 151
 152 double
 153 SVTK_Recorder
 154 ::NbFPS() const
 155 {
 156   return myNbFPS;
 157 }
 158
 159
 160 //----------------------------------------------------------------------------
 161 void
 162 SVTK_Recorder
 163 ::SetQuality(int theQuality)
 164 {
 165   myQuality = theQuality;
 166 }
 167
 168 int
 169 SVTK_Recorder
 170 ::GetQuality() const
 171 {
 172   return myQuality;
 173 }
 174
 175
 176 //----------------------------------------------------------------------------
 177 void
 178 SVTK_Recorder
 179 ::SetRenderWindow(vtkRenderWindow* theRenderWindow)
 180 {
 181   myRenderWindow = theRenderWindow;
 182 }
 183
 184 vtkRenderWindow*
 185 SVTK_Recorder
 186 ::RenderWindow()
 187 {
 188   return myRenderWindow;
 189 }
 190
 191
 192 //----------------------------------------------------------------------------
 193 void
 194 SVTK_Recorder
 195 ::SetProgressiveMode(bool theProgressiveMode)
 196 {
 197   myProgressiveMode = theProgressiveMode;
 198 }
 199
 200 bool
 201 SVTK_Recorder
 202 ::GetProgressiveMode() const
 203 {
 204   return myProgressiveMode;
 205 }
 206
 207
 208 //----------------------------------------------------------------------------
 209 void
 210 SVTK_Recorder
 211 ::SetUseSkippedFrames(bool theUseSkippedFrames)
 212 {
 213   myUseSkippedFrames = theUseSkippedFrames;
 214 }
 215
 216 bool
 217 SVTK_Recorder
 218 ::UseSkippedFrames() const
 219 {
 220   return myUseSkippedFrames;
 221 }
 222
 223
 224 //----------------------------------------------------------------------------
 225 int
 226 SVTK_Recorder
 227 ::ErrorStatus() const
 228 {
 229   return myErrorStatus;
 230 }
 231
 232 int
 233 SVTK_Recorder
 234 ::State() const
 235 {
 236   return myState;
 237 }
 238
 239
 240 //----------------------------------------------------------------------------
 241 void
 242 SVTK_Recorder
 243 ::ProcessEvents(vtkObject* vtkNotUsed(theObject),
 244                 unsigned long theEvent,
 245                 void* theClientData,
 246                 void* vtkNotUsed(theCallData))
 247 {
 248   if(vtkObject* anObj = reinterpret_cast<vtkObject*>(theClientData)){
 249     if(SVTK_Recorder* aSelf = dynamic_cast<SVTK_Recorder*>(anObj)){
 250       if(theEvent==vtkCommand::EndEvent){
 251         if(aSelf->State() == SVTK_Recorder::SVTK_Recorder_Record){
 252           aSelf->DoRecord();
 253         }
 254       }
 255     }
 256   }
 257 }
 258
 259
 260 //----------------------------------------------------------------------------
 261 void
 262 SVTK_Recorder
 263 ::Record()
 264 {
 265   if(myState == SVTK_Recorder_Stop){
 266     if(myRenderWindow){
 267       myState = SVTK_Recorder_Record;
 268       myFilter->SetInput(myRenderWindow);
 269       myFrameIndex = -1;
 270       myNbWrittenFrames = 0;
 271       myRenderWindow->RemoveObserver(myCommand);
 272       myRenderWindow->AddObserver(vtkCommand::EndEvent,
 273                                   myCommand,
 274                                   myPriority);
 275       myRenderWindow->Render();
 276     }
 277   }
 278 }
 279
 280
 281 //----------------------------------------------------------------------------
 282 void
 283 SVTK_Recorder
 284 ::Stop()
 285 {
 286   QApplication::setOverrideCursor( Qt::WaitCursor );
 287
 288   if(myState == SVTK_Recorder_Record){
 289     if(!myPaused)
 290       DoRecord();
 291
 292     myWriterMgr->Stop();
 293
 294     if(myUseSkippedFrames)
 295       AddSkippedFrames();
 296
 297     myFrameIndexes.clear();
 298
 299     MakeFileAVI();
 300   }
 301   myState = SVTK_Recorder_Stop;
 302   myPaused = 0;
 303
 304   QApplication::restoreOverrideCursor();
 305 }
 306
 307
 308 //----------------------------------------------------------------------------
 309 void
 310 SVTK_Recorder
 311 ::Pause()
 312 {
 313   myPaused = myPaused ? 0 : 1;
 314   if(myPaused && !myFrameIndexes.empty()){
 315     myFrameIndexes.back() *= -1;
 316     if(MYDEBUG) cout<<"SVTK_Recorder::Pause - myFrameIndexes.back() = "<<myFrameIndexes.back()<<endl;
 317   }
 318 }
 319
 320
 321 //----------------------------------------------------------------------------
 322 inline
 323 int
 324 GetFrameIndex(double theStartTime,
 325               double theFPS)
 326 {
 327   double aTimeNow = vtkTimerLog::GetCurrentTime();
 328   double aDelta = aTimeNow - theStartTime;
 329   return int(aDelta*theFPS);
 330 }
 331
 332 void
 333 SVTK_Recorder
 334 ::DoRecord()
 335 {
 336   if(myPaused)
 337     return;
 338
 339   if(myFrameIndex < 0){
 340     myFrameIndex = 0;
 341     myTimeStart = vtkTimerLog::GetCurrentTime();
 342   }else{
 343     int aFrameIndex = GetFrameIndex(myTimeStart,myNbFPS);
 344     if(aFrameIndex <= myFrameIndex)
 345       return;
 346
 347     // If there was a "pause" we correct the myTimeStart
 348     int aLastFrameIndex = myFrameIndexes.back();
 349     if(aLastFrameIndex < 0){
 350       myFrameIndexes.back() = abs(myFrameIndexes.back());
 351       double aPauseTime = fabs((double)(aFrameIndex - myFrameIndex - 1)) / myNbFPS;
 352       if(MYDEBUG)
 353         cout<<"SVTK_Recorder::DoRecord - aFrameIndex = "<<aFrameIndex<<
 354           "; aPauseTime = "<<aPauseTime<<endl;
 355       myTimeStart += aPauseTime;
 356     }
 357
 358     aFrameIndex = GetFrameIndex(myTimeStart,myNbFPS);
 359     if(aFrameIndex <= myFrameIndex)
 360       return;
 361
 362     myFrameIndex = aFrameIndex;
 363   }
 364
 365   myFrameIndexes.push_back(myFrameIndex);
 366   if(MYDEBUG) cout<<"SVTK_Recorder::DoRecord - myFrameIndex = "<<myFrameIndex<<endl;
 367
 368   myRenderWindow->RemoveObserver(myCommand);
 369   myFilter->Modified();
 370
 371   std::string aName;
 372   GetNameJPEG(myName,myFrameIndex,aName);
 373
 374   PreWrite();
 375
 376   vtkImageData *anImageData = vtkImageData::New();
 377   anImageData->DeepCopy(myFilter->GetOutput());
 378
 379   myWriterMgr->StartImageWriter(anImageData,aName,myProgressiveMode,myQuality);
 380   myNbWrittenFrames++;
 381
 382   myRenderWindow->AddObserver(vtkCommand::EndEvent,
 383                               myCommand,
 384                               myPriority);
 385 }
 386
 387
 388 //----------------------------------------------------------------------------
 389 void
 390 SVTK_Recorder
 391 ::PreWrite()
 392 {
 393   vtkImageData *anImageData = myFilter->GetOutput();
 394   //
 395   if(!anImageData){
 396     myErrorStatus = 20;
 397     return;
 398   }
 399   anImageData->UpdateInformation();
 400   int *anExtent = anImageData->GetWholeExtent();
 401   anImageData->SetUpdateExtent(anExtent[0], anExtent[1],
 402                                anExtent[2], anExtent[3],
 403                                0,0);
 404   anImageData->UpdateData();
 405 }
 406
 407
 408 //----------------------------------------------------------------------------
 409 void
 410 SVTK_Recorder
 411 ::AddSkippedFrames()
 412 {
 413   myErrorStatus = 0;
 414
 415   if(myFrameIndexes.size() < 2)
 416     return;
 417
 418   size_t anId = 0, anEnd = myFrameIndexes.size() - 1;
 419   for(; anId < anEnd; anId++){
 420     int aStartIndex = myFrameIndexes[anId];
 421     if(aStartIndex < 0)
 422       continue;
 423
 424     int aFinishIndex = abs(myFrameIndexes[anId + 1]);
 425     if(aStartIndex + 1 == aFinishIndex)
 426       continue;
 427
 428     std::string anInitialName;
 429     std::ostringstream aStream;
 430     GetNameJPEG(myName,aStartIndex,anInitialName);
 431     for(int anIndex = aStartIndex + 1; anIndex < aFinishIndex; anIndex++){
 432       myNbWrittenFrames++;
 433       std::string anCurrentName;
 434       GetNameJPEG(myName,anIndex,anCurrentName);
 435       aStream<<"ln -s "<< anInitialName<<" "<<anCurrentName<<";";
 436       if(anIndex + 1 < aFinishIndex)
 437         aStream<<" \\";
 438       aStream<<endl;
 439     }
 440     std::string aString(aStream.str());
 441     system(aString.c_str());
 442     if(MYDEBUG) cout<<"SVTK_Recorder::AddSkippedFrames - "<<aString<<endl;
 443   }
 444 }
 445
 446
 447 //----------------------------------------------------------------------------
 448 void
 449 SVTK_Recorder
 450 ::MakeFileAVI()
 451 {
 452   myErrorStatus = 0;
 453   std::ostringstream aStream;
 454   aStream<<myNameAVIMaker<<
 455     " -I p"<<
 456     " -v 0"<<
 457     //" -f "<<int(myNbFPS)<<" "<<
 458     " -f "<<myNbFPS<<" "<<
 459     " -n "<<myNbWrittenFrames<<" "<<
 460     " -j "<<myName<<"_\%06d.jpeg "<<
 461     "| yuv2lav"<<
 462     " -o "<<myName;
 463
 464   std::string aString(aStream.str());
 465   myErrorStatus = system(aString.c_str());
 466
 467   if(MYDEBUG) cout<<"SVTK_Recorder::MakeFileAVI - "<<aString<<endl;
 468
 469   QFileInfo aFileInfo(myName.c_str());
 470   QString aDirPath = aFileInfo.absoluteDir().path();
 471   QString aBaseName = aFileInfo.fileName();
 472   QString aCommand =
 473     QString("(cd ") + aDirPath +
 474     "; ls " +
 475     " | egrep '" + aBaseName + "_[0-9]*.jpeg'" +
 476     " | xargs rm " +
 477     ")";
 478
 479   if(MYDEBUG) cout<<"SVTK_Recorder::MakeFileAVI - "<<(const char*)aCommand.toLatin1()<<endl;
 480   system((const char*)aCommand.toLatin1());
 481 }