videoeditorengine/vedengine/videoprocessor/src/statusmonitor.cpp
changeset 0 951a5db380a0
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     1 /*
       
     2 * Copyright (c) 2010 Ixonos Plc.
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of the "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - Initial contribution
       
    11 *
       
    12 * Contributors:
       
    13 * Ixonos Plc
       
    14 *
       
    15 * Description:  
       
    16 * Video player status monitor definitions, class CStatusMonitor.
       
    17 *
       
    18 */
       
    19 
       
    20 
       
    21 //  EXTERNAL RESOURCES  
       
    22 
       
    23 
       
    24 //  Include Files
       
    25 
       
    26 #include "movieprocessorimpl.h"
       
    27 #include "statusmonitor.h"
       
    28 #include "vedmovie.h"
       
    29 
       
    30 
       
    31 // LOCAL CONSTANTS AND MACROS
       
    32 // Debug print macro
       
    33 #if defined _DEBUG 
       
    34 #include <e32svr.h>
       
    35 #define PRINT(x) RDebug::Print x;
       
    36 #else
       
    37 #define PRINT(x)
       
    38 #endif
       
    39 
       
    40 
       
    41 //  MEMBER FUNCTIONS
       
    42 
       
    43 
       
    44 //=============================================================================
       
    45 
       
    46 
       
    47 
       
    48 /*
       
    49 -----------------------------------------------------------------------------
       
    50 
       
    51     CStatusMonitor
       
    52 
       
    53     CStatusMonitor()
       
    54 
       
    55     Standard C++ constructor
       
    56 
       
    57 -----------------------------------------------------------------------------
       
    58 */
       
    59 
       
    60 CStatusMonitor::CStatusMonitor(MVedMovieProcessingObserver *anObserver,                               
       
    61                                CMovieProcessorImpl *aMovieProcessor,
       
    62                                CVedMovie *aMovie, TInt aPriority)
       
    63     : CActive(aPriority)
       
    64 {
       
    65     // Remember the objects
       
    66     iObserver = anObserver;
       
    67     iProcessor = aMovieProcessor;
       
    68     iMovie = aMovie;
       
    69     // Initialize status:
       
    70 
       
    71     iPrepared = EFalse;
       
    72     iPreparing = EFalse;
       
    73 
       
    74     iProcessingStarted = EFalse;
       
    75     iProcessing = EFalse;
       
    76     iClipProcessed = EFalse;
       
    77     iComplete = EFalse;
       
    78     iCancelled = EFalse;
       
    79     iError = KErrNone;
       
    80     iOutError = KErrNone;
       
    81 
       
    82 }
       
    83 
       
    84 
       
    85 
       
    86 /*
       
    87 -----------------------------------------------------------------------------
       
    88 
       
    89     CStatusMonitor
       
    90 
       
    91     ~CStatusMonitor()
       
    92 
       
    93     Standard C++ destructor
       
    94 
       
    95 -----------------------------------------------------------------------------
       
    96 */
       
    97 
       
    98 CStatusMonitor::~CStatusMonitor()
       
    99 {
       
   100     Cancel();
       
   101 }
       
   102 
       
   103 
       
   104 
       
   105 /*
       
   106 -----------------------------------------------------------------------------
       
   107 
       
   108     CStatusMonitor
       
   109 
       
   110     ConstructL()
       
   111 
       
   112     Symbian OS second-phase constructor
       
   113 
       
   114 -----------------------------------------------------------------------------
       
   115 */
       
   116 
       
   117 void CStatusMonitor::ConstructL()
       
   118 {
       
   119     // Add to active scheduler:
       
   120     CActiveScheduler::Add(this);
       
   121     
       
   122     // Make us active:
       
   123     if (!IsActive())
       
   124     {
       
   125         SetActive();
       
   126         iStatus = KRequestPending;
       
   127     }
       
   128 }
       
   129 
       
   130 
       
   131 
       
   132 /*
       
   133 -----------------------------------------------------------------------------
       
   134 
       
   135     CStatusMonitor
       
   136 
       
   137     Error()
       
   138 
       
   139     An error has occurred
       
   140 
       
   141 -----------------------------------------------------------------------------
       
   142 */
       
   143 
       
   144 void CStatusMonitor::Error(TInt anErrorCode)
       
   145 {
       
   146     // Remember the error
       
   147     iError = anErrorCode;
       
   148 
       
   149 #ifndef _DEBUG
       
   150     if (iError < KErrHardwareNotAvailable)
       
   151         iError = KErrGeneral;
       
   152 #endif
       
   153 
       
   154     PRINT((_L("CStatusMonitor::Error()  Error = %d  "), iError )); 
       
   155 
       
   156     // Activate the object:
       
   157     if ( iStatus == KRequestPending )
       
   158     {
       
   159         TRequestStatus *status = &iStatus;
       
   160         User::RequestComplete(status, KErrNone);
       
   161     }
       
   162 }
       
   163 
       
   164 
       
   165 
       
   166 /*
       
   167 -----------------------------------------------------------------------------
       
   168 
       
   169     CStatusMonitor
       
   170 
       
   171     StartOpening()
       
   172 
       
   173     The stream opening has been started
       
   174 
       
   175 -----------------------------------------------------------------------------
       
   176 */
       
   177 
       
   178 void CStatusMonitor::StartPreparing()
       
   179 {
       
   180     __ASSERT_DEBUG((!iPrepared) && (!iPreparing) && (!iProcessing),
       
   181                    User::Panic(_L("CVideoProcessor"), EInvalidStateTransition));
       
   182     
       
   183     // Note the state change:
       
   184     iPreparing = ETrue;
       
   185 }
       
   186 
       
   187 
       
   188 
       
   189 /*
       
   190 -----------------------------------------------------------------------------
       
   191 
       
   192     CStatusMonitor
       
   193 
       
   194     Opened()
       
   195 
       
   196     The stream has been opened and it is ready for playback
       
   197 
       
   198 -----------------------------------------------------------------------------
       
   199 */
       
   200 
       
   201 void CStatusMonitor::PrepareComplete()
       
   202 {
       
   203     __ASSERT_DEBUG((!iPrepared) && iPreparing && (!iProcessing),
       
   204                    User::Panic(_L("CVideoProcessor"), EInvalidStateTransition));
       
   205     
       
   206     // Note the state change
       
   207     iPrepared = ETrue;
       
   208     iPreparing = EFalse;
       
   209     
       
   210 }
       
   211 
       
   212 void CStatusMonitor::StreamEndReached()
       
   213 {
       
   214 
       
   215 
       
   216 }
       
   217 
       
   218 void CStatusMonitor::Progress(TInt aPercentage)
       
   219 {
       
   220     PRINT((_L("CStatusMonitor::Progress()  Progress = %d  "), aPercentage )); 
       
   221 
       
   222     iObserver->NotifyMovieProcessingProgressed(*iMovie, aPercentage);
       
   223 }
       
   224 
       
   225 /*
       
   226 -----------------------------------------------------------------------------
       
   227 
       
   228     CStatusMonitor
       
   229 
       
   230     Closed()
       
   231 
       
   232     The stream has been closed
       
   233 
       
   234 -----------------------------------------------------------------------------
       
   235 */
       
   236 
       
   237 void CStatusMonitor::Closed()
       
   238 {
       
   239     __ASSERT_DEBUG((iPrepared || iPreparing) && (!iProcessing),
       
   240                    User::Panic(_L("CVideoProcessor"), EInvalidStateTransition));
       
   241 
       
   242     // Note the state change:    
       
   243     iPreparing = EFalse;    
       
   244 
       
   245     // Do not report a stream open if one had been done
       
   246     iPrepared = EFalse;    
       
   247 }
       
   248 
       
   249 
       
   250 
       
   251 /*
       
   252 -----------------------------------------------------------------------------
       
   253 
       
   254     CStatusMonitor
       
   255 
       
   256     ProcessingStarted()
       
   257 
       
   258     Processing has been started
       
   259 
       
   260 -----------------------------------------------------------------------------
       
   261 */
       
   262 
       
   263 void CStatusMonitor::ProcessingStarted(TBool aNotifyObserver)
       
   264 {
       
   265     __ASSERT_DEBUG( (!iProcessing) && (!iProcessingStarted) && (iPrepared),
       
   266                    User::Panic(_L("CVideoProcessor"), EInvalidStateTransition));
       
   267 
       
   268     // Note the state change:    
       
   269     iProcessing = ETrue;
       
   270 
       
   271     if (aNotifyObserver)
       
   272     {
       
   273         iProcessingStarted = ETrue;
       
   274         
       
   275         // Activate the object:
       
   276         if ( iStatus == KRequestPending )
       
   277         {
       
   278             TRequestStatus *status = &iStatus;
       
   279             User::RequestComplete(status, KErrNone);
       
   280         }
       
   281     }   
       
   282 }
       
   283 
       
   284 
       
   285 
       
   286 /*
       
   287 -----------------------------------------------------------------------------
       
   288 
       
   289     CStatusMonitor
       
   290 
       
   291    ProcessingStopped()
       
   292 
       
   293     Processing has been stopped
       
   294 
       
   295 -----------------------------------------------------------------------------
       
   296 */
       
   297 
       
   298 void CStatusMonitor::ProcessingStopped()
       
   299 {
       
   300     __ASSERT_DEBUG(iProcessing,
       
   301                    User::Panic(_L("CVideoProcessor"), EInvalidStateTransition));
       
   302 
       
   303     // Note the state change:
       
   304     iProcessing = EFalse;
       
   305 }
       
   306 
       
   307 
       
   308 
       
   309 /*
       
   310 -----------------------------------------------------------------------------
       
   311 
       
   312     CStatusMonitor
       
   313 
       
   314     ClipProcessed()
       
   315 
       
   316     The video clip end has been reached
       
   317 
       
   318 -----------------------------------------------------------------------------
       
   319 */
       
   320 
       
   321 void CStatusMonitor::ClipProcessed()
       
   322 {
       
   323     __ASSERT_DEBUG( (iProcessing),
       
   324                    User::Panic(_L("CVideoProcessor"), EInvalidStateTransition));
       
   325 
       
   326     // Note the stream end:
       
   327     iClipProcessed = ETrue;
       
   328 
       
   329     // Activate the object:
       
   330     if ( iStatus == KRequestPending )
       
   331     {
       
   332         TRequestStatus *status = &iStatus;
       
   333         User::RequestComplete(status, KErrNone);
       
   334     }
       
   335 }
       
   336 
       
   337 void CStatusMonitor::ProcessingComplete()
       
   338 {
       
   339     __ASSERT_DEBUG((!iProcessing),
       
   340                    User::Panic(_L("CVideoProcessor"), EInvalidStateTransition));
       
   341 
       
   342     // Note the stream end:
       
   343     iComplete = ETrue;
       
   344 
       
   345     // Activate the object:
       
   346     if ( iStatus == KRequestPending )
       
   347     {
       
   348         TRequestStatus *status = &iStatus;
       
   349         User::RequestComplete(status, KErrNone);
       
   350     }
       
   351 }
       
   352 
       
   353 void CStatusMonitor::ProcessingCancelled()
       
   354 {
       
   355     __ASSERT_DEBUG((!iProcessing),
       
   356                    User::Panic(_L("CVideoProcessor"), EInvalidStateTransition));
       
   357     
       
   358     iCancelled = ETrue;
       
   359 
       
   360     // Activate the object:
       
   361     if ( iStatus == KRequestPending )
       
   362     {
       
   363         TRequestStatus *status = &iStatus;
       
   364         User::RequestComplete(status, KErrNone);
       
   365     }
       
   366 }
       
   367 
       
   368 
       
   369 
       
   370 /*
       
   371 -----------------------------------------------------------------------------
       
   372 
       
   373     CStatusMonitor
       
   374 
       
   375     FatalError()
       
   376 
       
   377     A fatal non-recovereable error has occurred
       
   378 
       
   379 -----------------------------------------------------------------------------
       
   380 */
       
   381 
       
   382 void CStatusMonitor::FatalError(TInt anError)
       
   383 {
       
   384     PRINT((_L("CStatusMonitor::FatalError  Error = %d  "), anError )); 
       
   385 
       
   386     // Pass the error to the observer
       
   387     iObserver->NotifyMovieProcessingCompleted(*iMovie, anError);
       
   388 
       
   389     // The observer returned -- panic the program
       
   390     User::Panic(_L("CVideoProcessor"), anError);    
       
   391     
       
   392 }
       
   393 
       
   394 
       
   395 
       
   396 /*
       
   397 -----------------------------------------------------------------------------
       
   398 
       
   399     CStatusMonitor
       
   400 
       
   401     RunL()
       
   402 
       
   403     The active object running method, called by the active scheduler when the
       
   404     object has been activated.
       
   405 
       
   406 -----------------------------------------------------------------------------
       
   407 */
       
   408 
       
   409 void CStatusMonitor::RunL()
       
   410 {
       
   411     TInt error;
       
   412     
       
   413     // Re-activate us:
       
   414     if (!IsActive())
       
   415     {
       
   416         SetActive();
       
   417         iStatus = KRequestPending;
       
   418     }
       
   419     
       
   420     // Check if an error occurred:
       
   421     if ( iError != KErrNone )
       
   422     {
       
   423         // Yes, stop processing if we are processing, close stream if it was open:
       
   424         if ( iProcessing )
       
   425         {
       
   426             if ( iProcessor )
       
   427             {                
       
   428 				iProcessor->CancelProcessingL();
       
   429             }
       
   430             iProcessing = EFalse;
       
   431         }
       
   432         else
       
   433         {
       
   434             if ( iPrepared || iPreparing )
       
   435             {
       
   436                 if ( iProcessor )
       
   437                 {                    
       
   438                     iProcessor->CancelProcessingL();                    
       
   439                 }
       
   440                 iPreparing = EFalse;
       
   441                 iPrepared = EFalse;                
       
   442             }
       
   443         }
       
   444 
       
   445         // Report the error to the observer:
       
   446         //iObserver->NotifyMovieProcessingCompleted(*iMovie, iError);        
       
   447         iOutError = iError;
       
   448         iError = KErrNone;
       
   449 
       
   450         
       
   451     }
       
   452     
       
   453     else
       
   454     {
       
   455         // Nope, no errors
       
   456 
       
   457         // If processing has been started, report that:
       
   458         if ( iProcessingStarted )
       
   459         {
       
   460             iProcessingStarted = EFalse;
       
   461             TRAP(error, iObserver->NotifyMovieProcessingStartedL(*iMovie));
       
   462             if ( error != KErrNone )
       
   463                 FatalError(error);
       
   464         }
       
   465 		else if ( iCancelled )
       
   466         {
       
   467             // processing has been cancelled
       
   468             iCancelled = EFalse;
       
   469             iComplete = EFalse;
       
   470 			iClipProcessed = EFalse;
       
   471 
       
   472             if ( iOutError == KErrNone )
       
   473                 iObserver->NotifyMovieProcessingCompleted(*iMovie, KErrCancel);
       
   474             else
       
   475                 iObserver->NotifyMovieProcessingCompleted(*iMovie, iOutError);
       
   476 
       
   477             iOutError = KErrNone;
       
   478 
       
   479         }
       
   480 
       
   481         else if ( iClipProcessed )
       
   482         {
       
   483             // a clip has been processed
       
   484             iClipProcessed = EFalse;
       
   485             iProcessor->FinalizeVideoClip();
       
   486         }        
       
   487         
       
   488         else 
       
   489         {
       
   490             if ( iComplete ) 
       
   491             {
       
   492                 // If the movie has been completed, report that:            
       
   493                 iComplete = EFalse;
       
   494                 iObserver->NotifyMovieProcessingCompleted(*iMovie, KErrNone);
       
   495                     
       
   496             }
       
   497         }
       
   498     }
       
   499 }
       
   500 
       
   501 
       
   502 
       
   503 /*
       
   504 -----------------------------------------------------------------------------
       
   505 
       
   506     CStatusMonitor
       
   507 
       
   508     DoCancel()
       
   509 
       
   510     Cancels the internal request
       
   511 
       
   512 -----------------------------------------------------------------------------
       
   513 */
       
   514 
       
   515 void CStatusMonitor::DoCancel()
       
   516 {
       
   517     // Cancel it:
       
   518     TRequestStatus *status = &iStatus;
       
   519     User::RequestComplete(status, KErrCancel);
       
   520 }
       
   521 
       
   522 
       
   523 
       
   524 
       
   525 //  OTHER EXPORTED FUNCTIONS
       
   526 
       
   527 
       
   528 //=============================================================================
       
   529 
       
   530 
       
   531 //  End of File