camcordermmfplugin/mediarecorder/Src/CCMRAudioRecorder.cpp
changeset 0 9b3e960ffc8a
child 10 6bc4220d7f67
equal deleted inserted replaced
-1:000000000000 0:9b3e960ffc8a
       
     1 /*
       
     2 * Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "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 *
       
    14 * Description:  Audio recorder class. Client side for audio thread
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 
       
    21 #include    "CCMRAudioRecorder.h"
       
    22 #include    "CCMRSupportedCodecs.h"
       
    23 #include    "CCMRAudioCodecs.h"
       
    24 #include    "CCMRAudioCodecData.h"
       
    25 #include    "CCMRActiveOutput.h"
       
    26 #include    "CCMRVideoHWParams.h"
       
    27 
       
    28 #include    <mmf/server/mmfdatabuffer.h>
       
    29 #include    <mmf/server/mmfaudioinput.h>
       
    30 #include 	<AudioPreference.h>                // For MMF audio preference definitions.
       
    31 
       
    32 // MACROS
       
    33 
       
    34 // Assertion macro wrapper for code cleanup
       
    35 #define ARASSERT(x) __ASSERT_DEBUG(x, User::Panic(_L("CCMRAUDIORECORDER"), EInternalAssertionFailure)) 
       
    36 
       
    37 // Debug print macro
       
    38 #ifdef _DEBUG
       
    39 #include <e32svr.h>
       
    40 #define PRINT(x) RDebug::Print x
       
    41 #else
       
    42 #define PRINT(x)
       
    43 #endif
       
    44 
       
    45 
       
    46 
       
    47 
       
    48 // ================= MEMBER FUNCTIONS =======================
       
    49 
       
    50 // -----------------------------------------------------------------------------
       
    51 // CCMRAudioRecorder::CCMRAudioRecorder
       
    52 //
       
    53 // Default constructor.
       
    54 // -----------------------------------------------------------------------------
       
    55 //
       
    56 CCMRAudioRecorder::CCMRAudioRecorder()
       
    57     {
       
    58     iObserver = NULL;
       
    59     iDataSource = NULL;
       
    60     iThreadCreated = EFalse;
       
    61     }
       
    62 
       
    63 // -----------------------------------------------------------------------------
       
    64 // CCMRAudioRecorder::~CCMRAudioRecorder
       
    65 //
       
    66 // Destructor.
       
    67 // -----------------------------------------------------------------------------
       
    68 //
       
    69 CCMRAudioRecorder::~CCMRAudioRecorder()
       
    70     {
       
    71     PRINT((_L("CCMRAudioRecorder::~CCMRAudioRecorder() in")));
       
    72     
       
    73     delete iThreadEventMonitor;
       
    74     iThreadEventMonitor = NULL;
       
    75 
       
    76     if ( iThreadCreated )
       
    77         {
       
    78         iThreadProxy.Close();
       
    79         }
       
    80     //audio thread already logs off audio source (=> deletes it)
       
    81     PRINT((_L("CCMRAudioRecorder::~CCMRAudioRecorder() thread closed")));
       
    82 
       
    83     iObserver = NULL;
       
    84     iDataSource = NULL;
       
    85     iOutputAO = NULL;
       
    86     
       
    87     delete iAudioCodecs;
       
    88     iAudioCodecs = NULL;
       
    89 
       
    90     PRINT((_L("CCMRAudioRecorder::~CCMRAudioRecorder() out")));
       
    91     }
       
    92 
       
    93 
       
    94 // -----------------------------------------------------------------------------
       
    95 // CCMRAudioRecorder::NewL
       
    96 //
       
    97 // Two-phased constructor.
       
    98 // -----------------------------------------------------------------------------
       
    99 //
       
   100 CCMRAudioRecorder* CCMRAudioRecorder::NewL()
       
   101     {
       
   102     
       
   103     CCMRAudioRecorder* self = new (ELeave) CCMRAudioRecorder;
       
   104     CleanupStack::PushL(self);
       
   105     self->ConstructL();
       
   106     CleanupStack::Pop();
       
   107     return self;
       
   108     
       
   109     }
       
   110 
       
   111 
       
   112 // -----------------------------------------------------------------------------
       
   113 // CCMRAudioRecorder::ConstructL
       
   114 //
       
   115 // Symbian 2nd phase constructor.
       
   116 // -----------------------------------------------------------------------------
       
   117 //
       
   118 void CCMRAudioRecorder::ConstructL()
       
   119     {
       
   120     SetState(EStateNone);
       
   121     iPrioritySettings.iPriority = KAudioPriorityVideoRecording;
       
   122     iPrioritySettings.iPref =  TMdaPriorityPreference( KAudioPrefVideoRecording );
       
   123 
       
   124     RArray<TFourCC> audioTypes;
       
   125     CleanupClosePushL( audioTypes );
       
   126     audioTypes.Reset();
       
   127     
       
   128     iAudioCodecs = CCMRAudioCodecs::NewL();
       
   129     iAudioCodecs->GetSupportedAudioCodecsL( audioTypes );
       
   130     // audioTypes have always >= 1 element now
       
   131     if ( audioTypes.Count() > 0 )
       
   132         {
       
   133         iAudioCodecFourCC = TFourCC(audioTypes[0]);
       
   134         iAudioCodecs->SetAudioCodecL( iAudioCodecFourCC );
       
   135         CCMRRecorderBase::SetTargetBitRateL( iAudioCodecs->GetCodecDataL()->GetBitRateL() );
       
   136         }
       
   137     else
       
   138         {
       
   139         // no audio codecs exist. Must anyway create audio recorder, since mediarecorder should work also video-only and codec support is checked later
       
   140         iAudioCodecFourCC = TFourCC(' ',' ',' ',' ');
       
   141         }
       
   142 
       
   143     CleanupStack::PopAndDestroy( &audioTypes ); // calls also audioTypes.Close()
       
   144     }
       
   145 
       
   146 
       
   147 // -----------------------------------------------------------------------------
       
   148 // CCMRAudioRecorder::OpenL
       
   149 //
       
   150 // Open recorder. This is like audio controller's AddSource
       
   151 // -----------------------------------------------------------------------------
       
   152 //
       
   153 void CCMRAudioRecorder::OpenL(MCMRAudioRecorderObserver *aObserver, MDataSource *aSource, 
       
   154                               CCMRActiveOutput* aOutputAO, const TFourCC& aAudioType, CCMRConfigManager* aConfig )
       
   155     {
       
   156     PRINT((_L("CCMRAudioRecorder::OpenL() in")));
       
   157     if ( State() != EStateNone ) 
       
   158         {
       
   159         PRINT((_L("CCMRAudioRecorder::OpenL() already exists")));
       
   160         User::Leave( KErrAlreadyExists );
       
   161         }
       
   162   
       
   163     // save the references/pointers
       
   164     iObserver = aObserver;
       
   165     iConfig = aConfig;
       
   166     iConfig->SetAudioCodec( iAudioCodecFourCC );
       
   167 
       
   168     // check the source type
       
   169     if ( aSource && aSource->DataSourceType() != KUidMmfAudioInput)
       
   170         {
       
   171         PRINT((_L("CCMRAudioRecorder::OpenL() unsupported source")));
       
   172         User::Leave(KErrNotSupported);
       
   173         }
       
   174     iDataSource = aSource;
       
   175 
       
   176     iOutputAO = aOutputAO;
       
   177 
       
   178     // create thread for audio 
       
   179     User::LeaveIfError(iThreadProxy.CreateSubThread(iThreadCreated));
       
   180     User::LeaveIfError(iThreadProxy.SetOutput(iOutputAO));
       
   181 
       
   182     iThreadEventMonitor = CCMRSubThreadEventMonitor::NewL(*this, iThreadProxy); 
       
   183     iThreadEventMonitor->Start();
       
   184 
       
   185     // add data source => we will be connected also to DevSound and then we can use e.g. gain settings
       
   186     if (iDataSource)
       
   187         {
       
   188         User::LeaveIfError(iThreadProxy.AddDataSource(iDataSource));
       
   189         }
       
   190 
       
   191     // set config manager to thread
       
   192     User::LeaveIfError(iThreadProxy.SetConfigManager( aConfig ));
       
   193 
       
   194     // SetAudioCodec requires we are at least open
       
   195     SetState( EStateOpen );
       
   196     iObserver->MaroStateChange( State() );
       
   197 
       
   198     SetAudioCodecL( aAudioType );
       
   199   
       
   200     PRINT((_L("CCMRAudioRecorder::OpenL() out")));
       
   201     }
       
   202 
       
   203 
       
   204 // -----------------------------------------------------------------------------
       
   205 // CCMRAudioRecorder::SetAudioCodecL
       
   206 //
       
   207 // Set audio codec to be used (overrides the one given in OpenL)
       
   208 // -----------------------------------------------------------------------------
       
   209 //
       
   210 void CCMRAudioRecorder::SetAudioCodecL( const TFourCC& aAudioType )
       
   211     {
       
   212     PRINT((_L("CCMRAudioRecorder::SetAudioCodecL() in")));    
       
   213     if ( ( State() != EStateOpen ) && ( State() != EStateReadyToRecord ) )
       
   214         {
       
   215         PRINT((_L("CCMRAudioRecorder::SetAudioCodecL() wrong state")));
       
   216         User::Leave(KErrNotReady);
       
   217         }
       
   218     if ( aAudioType != iAudioCodecFourCC )
       
   219         {
       
   220         iAudioCodecs->SetAudioCodecL( aAudioType );
       
   221         iAudioCodecFourCC = aAudioType;
       
   222         iConfig->SetAudioCodec(iAudioCodecFourCC);
       
   223 
       
   224         SetState( EStateOpen );
       
   225         iObserver->MaroStateChange( State() );
       
   226         }
       
   227     PRINT((_L("CCMRAudioRecorder::SetAudioCodecL() out")));        
       
   228     }
       
   229 
       
   230 // -----------------------------------------------------------------------------
       
   231 // CCMRAudioRecorder::GetAudioCodecL
       
   232 // Get the used audio codec.
       
   233 // (other items were commented in a header).
       
   234 // -----------------------------------------------------------------------------
       
   235 //
       
   236 void CCMRAudioRecorder::GetAudioCodecL( TFourCC& aAudioType ) const
       
   237     {
       
   238     if ( (State() == EStateNone) || (iAudioCodecs->GetCodecDataL() == NULL) )
       
   239         {
       
   240         PRINT((_L("CCMRAudioRecorder::GetAudioCodecL() wrong state")));
       
   241         User::Leave(KErrNotReady);
       
   242         }
       
   243 
       
   244     aAudioType = iAudioCodecs->GetCodecDataL()->GetCodecFourCCL();
       
   245     }
       
   246 
       
   247 // -----------------------------------------------------------------------------
       
   248 // CCMRAudioRecorder::GetSupportedAudioCodecsL
       
   249 // Get the supported & installed audio codecs.
       
   250 // This can be called also when the recorder is not open
       
   251 // (other items were commented in a header).
       
   252 // -----------------------------------------------------------------------------
       
   253 //
       
   254 void CCMRAudioRecorder::GetSupportedAudioCodecsL( RArray<TFourCC>& aAudioTypes ) const
       
   255     {
       
   256     aAudioTypes.Reset();
       
   257     
       
   258     iAudioCodecs->GetSupportedAudioCodecsL( aAudioTypes );
       
   259 
       
   260     }
       
   261 
       
   262 // -----------------------------------------------------------------------------
       
   263 // CCMRAudioRecorder::SetPriorityL
       
   264 //
       
   265 // Set audio priority (for DevSound)
       
   266 // -----------------------------------------------------------------------------
       
   267 //
       
   268 void CCMRAudioRecorder::SetPriorityL(const TMMFPrioritySettings& aPrioritySettings)
       
   269     {
       
   270     if ( State() == EStateNone || State() == EStateRecording || State() == EStatePaused )
       
   271         {
       
   272         PRINT((_L("CCMRAudioRecorder::SetPriorityL() wrong state")));
       
   273         User::Leave(KErrNotReady);
       
   274         }
       
   275     if ( aPrioritySettings.iPriority < EMdaPriorityMin || aPrioritySettings.iPriority > EMdaPriorityMax )
       
   276         {
       
   277         // outside allowed range
       
   278         PRINT((_L("CCMRAudioRecorder::SetPriorityL() unsupported priority")));
       
   279         User::Leave( KErrArgument );
       
   280         }
       
   281 
       
   282     iPrioritySettings = aPrioritySettings;
       
   283     SetState( EStateOpen );
       
   284     iObserver->MaroStateChange( State() );
       
   285 
       
   286     }
       
   287 
       
   288 
       
   289 // -----------------------------------------------------------------------------
       
   290 // CCMRAudioRecorder::SetTargetBitRateL
       
   291 //
       
   292 // Set audio bitrate. Note: checked only in PrepareL
       
   293 // -----------------------------------------------------------------------------
       
   294 //
       
   295 void CCMRAudioRecorder::SetTargetBitRateL(TInt aBitRate)
       
   296     {
       
   297     PRINT((_L("CCMRAudioRecorder::SetTargetBitRateL() in")));
       
   298     if ( (( State() != EStateOpen ) && ( State() != EStateReadyToRecord )) || (iAudioCodecs->GetCodecDataL() == NULL) )
       
   299         {
       
   300         PRINT((_L("CCMRAudioRecorder::SetTargetBitRateL() wrong state")));
       
   301         User::Leave(KErrNotReady);
       
   302         }
       
   303 
       
   304     iAudioCodecs->GetCodecDataL()->SetBitRateL( aBitRate );
       
   305     // if we are here, the bitrate was ok, store it also here since the system assumes recorder class stores it
       
   306     CCMRRecorderBase::SetTargetBitRateL( aBitRate );
       
   307 
       
   308     SetState( EStateOpen );
       
   309     iObserver->MaroStateChange( State() );
       
   310     PRINT((_L("CCMRAudioRecorder::SetTargetBitRateL() out")));
       
   311     }
       
   312 
       
   313 // -----------------------------------------------------------------------------
       
   314 // CCMRAudioRecorder::SetTargetSampleRateL
       
   315 //
       
   316 // Set audio samplerate. AAC only.
       
   317 // -----------------------------------------------------------------------------
       
   318 //
       
   319 void CCMRAudioRecorder::SetTargetSampleRateL(TInt aSampleRate)
       
   320     {
       
   321     PRINT((_L("CCMRAudioRecorder::SetTargetSampleRateL() in, samplerate=%d"),aSampleRate));
       
   322     if ( (( State() != EStateOpen ) && ( State() != EStateReadyToRecord )) || (iAudioCodecs->GetCodecDataL() == NULL) )
       
   323         {
       
   324         PRINT((_L("CCMRAudioRecorder::SetTargetSampleRateL() wrong state")));
       
   325         User::Leave(KErrNotReady);
       
   326         }
       
   327 
       
   328     iAudioCodecs->GetCodecDataL()->SetSampleRateL( aSampleRate );
       
   329 
       
   330     SetState( EStateOpen );
       
   331     iObserver->MaroStateChange( State() );
       
   332     PRINT((_L("CCMRAudioRecorder::SetTargetSampleRateL() out")));
       
   333     }    
       
   334 
       
   335 // -----------------------------------------------------------------------------
       
   336 // CCMRAudioRecorder::SetChannelModeL
       
   337 //
       
   338 // Set audio channel mode. AAC only.
       
   339 // -----------------------------------------------------------------------------
       
   340 //
       
   341 void CCMRAudioRecorder::SetChannelModeL(TInt aChannelMode)
       
   342     {
       
   343     PRINT((_L("CCMRAudioRecorder::SetChannelModeL() in, channelmode=%d"), aChannelMode));
       
   344     if ( (( State() != EStateOpen ) && ( State() != EStateReadyToRecord )) || (iAudioCodecs->GetCodecDataL() == NULL) )
       
   345         {
       
   346         PRINT((_L("CCMRAudioRecorder::SetChannelModeL() wrong state")));
       
   347         User::Leave(KErrNotReady);
       
   348         }
       
   349 
       
   350     iAudioCodecs->GetCodecDataL()->SetChannelModeL( aChannelMode );
       
   351 
       
   352     SetState( EStateOpen );
       
   353     iObserver->MaroStateChange( State() );
       
   354     PRINT((_L("CCMRAudioRecorder::SetChannelModeL() out")));
       
   355     }
       
   356 
       
   357 // -----------------------------------------------------------------------------
       
   358 // CCMRAudioRecorder::MaxGainL
       
   359 //
       
   360 // Get maximum gain from audio input
       
   361 // -----------------------------------------------------------------------------
       
   362 //
       
   363 TInt CCMRAudioRecorder::MaxGainL()
       
   364     {
       
   365     PRINT((_L("CCMRAudioRecorder::MaxGainL() in")));
       
   366     if ( State() == EStateNone )
       
   367         {
       
   368         PRINT((_L("CCMRAudioRecorder::MaxGainL() wrong state")));
       
   369         User::Leave( KErrNotReady );
       
   370         }
       
   371 
       
   372     // check max gain from sound device
       
   373     TInt gain;
       
   374     User::LeaveIfError( iThreadProxy.MaxGain( gain ));
       
   375     PRINT((_L("CCMRAudioRecorder::MaxGainL() almost out, max gain %d"),gain));
       
   376     return gain;
       
   377     }
       
   378 
       
   379 // -----------------------------------------------------------------------------
       
   380 // CCMRAudioRecorder::GainL
       
   381 //
       
   382 // Get current gain from audio input
       
   383 // -----------------------------------------------------------------------------
       
   384 //
       
   385 TInt CCMRAudioRecorder::GainL()
       
   386     {
       
   387     PRINT((_L("CCMRAudioRecorder::GainL() in")));
       
   388     if ( State() == EStateNone )
       
   389         {
       
   390         PRINT((_L("CCMRAudioRecorder::GainL() wrong state")));
       
   391         User::Leave( KErrNotReady );
       
   392         }
       
   393 
       
   394     // check current gain from sound device
       
   395     TInt gain;
       
   396     User::LeaveIfError( iThreadProxy.GetGain( gain ));
       
   397     PRINT((_L("CCMRAudioRecorder::GainL() almost out, gain %d"),gain));
       
   398     return gain;
       
   399     }
       
   400 
       
   401 
       
   402 // -----------------------------------------------------------------------------
       
   403 // CCMRAudioRecorder::SetGainL
       
   404 //
       
   405 // Sets gain for audio input. Can be done before and during recording 
       
   406 // and is effective immediately
       
   407 // -----------------------------------------------------------------------------
       
   408 //
       
   409 void CCMRAudioRecorder::SetGainL(TInt aGain)
       
   410     {
       
   411     PRINT((_L("CCMRAudioRecorder::SetGainL() in")));
       
   412     if ( State() == EStateNone )
       
   413         {
       
   414         PRINT((_L("CCMRAudioRecorder::SetGainL() wrong state")));
       
   415         User::Leave( KErrNotReady );
       
   416         }
       
   417     if ( aGain >= 0 ) 
       
   418         {
       
   419         User::LeaveIfError( iThreadProxy.SetGain(aGain));
       
   420 
       
   421         PRINT((_L("CCMRAudioRecorder::SetGainL() out")));
       
   422         }
       
   423     else
       
   424         {
       
   425         PRINT((_L("CCMRAudioRecorder::SetGainL() out due to illegal argument: %d"),aGain));
       
   426         User::Leave( KErrArgument );
       
   427         }
       
   428     }
       
   429 
       
   430 // -----------------------------------------------------------------------------
       
   431 // CCMRAudioRecorder::GetThreadPriority
       
   432 //
       
   433 // Get audio thread priority
       
   434 // -----------------------------------------------------------------------------
       
   435 //
       
   436 TThreadPriority CCMRAudioRecorder::GetThreadPriority() const
       
   437     {
       
   438     return iThreadProxy.GetThreadPriority();
       
   439     }
       
   440 
       
   441 // -----------------------------------------------------------------------------
       
   442 // CCMRAudioRecorder::PrepareL
       
   443 //
       
   444 // Prepare recorder for recording (freeze settings / implements PrimeL)
       
   445 // -----------------------------------------------------------------------------
       
   446 //
       
   447 void CCMRAudioRecorder::PrepareL()
       
   448     {
       
   449     PRINT((_L("CCMRAudioRecorder::PrepareL() in    ")));
       
   450 
       
   451     if ( (State() != EStateOpen) && (State() != EStateReadyToRecord) )
       
   452         {
       
   453         PRINT((_L("CCMRAudioRecorder::PrepareL() wrong state")));
       
   454         User::Leave( KErrNotReady );
       
   455         }
       
   456 
       
   457     if ( !iThreadCreated )
       
   458         {
       
   459         PRINT((_L("CCMRAudioRecorder::PrepareL() no thread")));
       
   460         User::Leave( KErrNotReady );
       
   461         }
       
   462 
       
   463     // set priority settings
       
   464     User::LeaveIfError( iThreadProxy.SetPriority(iPrioritySettings));    
       
   465     
       
   466     // give handle to the audio codec
       
   467     User::LeaveIfError( iThreadProxy.SetAudioCodec( iAudioCodecs->GetCodecDataL() ) );
       
   468 
       
   469     // inform sink about average audio bitrate
       
   470     User::LeaveIfError( iOutputAO->SetAverageAudioBitRate(iAudioCodecs->GetCodecDataL()->GetBitRateL()) );
       
   471 
       
   472     // prime the audio thread
       
   473     User::LeaveIfError(iThreadProxy.Prime());
       
   474     PRINT((_L("CCMRAudioRecorder::PrepareL(), iThreadProxy.Prime() done") ));
       
   475 
       
   476     //no need to be in preparing state; prepare is synchronous
       
   477 
       
   478     SetState( EStateReadyToRecord );
       
   479     iObserver->MaroStateChange( State() );
       
   480 
       
   481     PRINT((_L("CCMRAudioRecorder::PrepareL() out    ")));
       
   482     }
       
   483 
       
   484 
       
   485 
       
   486 // -----------------------------------------------------------------------------
       
   487 // CCMRAudioRecorder::RecordL
       
   488 //
       
   489 // Start recording
       
   490 // -----------------------------------------------------------------------------
       
   491 //
       
   492 void CCMRAudioRecorder::RecordL()
       
   493     {
       
   494     PRINT((_L("CCMRAudioRecorder::RecordL() in    ")));
       
   495     if ( (State() == EStateRecording) || (State() == EStatePaused) )
       
   496         {
       
   497         // ignore, already recording
       
   498         return;
       
   499         }
       
   500     
       
   501     if ( State() != EStateReadyToRecord )
       
   502         {
       
   503         PRINT((_L("CCMRAudioRecorder::RecordL() wrong state")));
       
   504         User::Leave(KErrNotReady);
       
   505         }
       
   506 
       
   507     if ( State() == EStateReadyToRecord )
       
   508         {
       
   509         User::LeaveIfError(iThreadProxy.Play());
       
   510 
       
   511         SetState( EStateRecording );
       
   512         iObserver->MaroStateChange( State() );
       
   513         }
       
   514 
       
   515     PRINT((_L("CCMRAudioRecorder::RecordL() out    ")));
       
   516     }
       
   517 
       
   518 // -----------------------------------------------------------------------------
       
   519 // CCMRAudioRecorder::StopL
       
   520 //
       
   521 // Stop recording
       
   522 // -----------------------------------------------------------------------------
       
   523 //
       
   524 void CCMRAudioRecorder::StopL()
       
   525     {
       
   526     PRINT((_L("CCMRAudioRecorder::StopL() in    ")));
       
   527 
       
   528     if ( (State() == EStateRecording) || (State() == EStatePaused) )
       
   529         {
       
   530 
       
   531         User::LeaveIfError(iThreadProxy.Stop());
       
   532         SetState( EStateStopping );
       
   533         }
       
   534     PRINT((_L("CCMRAudioRecorder::StopL() out    ")));
       
   535     }
       
   536 
       
   537 // -----------------------------------------------------------------------------
       
   538 // CCMRAudioRecorder::PauseL
       
   539 //
       
   540 // Pause recording
       
   541 // -----------------------------------------------------------------------------
       
   542 //
       
   543 void CCMRAudioRecorder::PauseL()
       
   544     {
       
   545     if ( State() == EStateRecording )
       
   546         {
       
   547         User::LeaveIfError(iThreadProxy.Pause());
       
   548         // pause was sync
       
   549         SetState( EStatePaused );
       
   550         iObserver->MaroStateChange( State() );
       
   551         }
       
   552     }
       
   553 
       
   554 // -----------------------------------------------------------------------------
       
   555 // CCMRAudioRecorder::ResumeL
       
   556 //
       
   557 // Resume recording
       
   558 // -----------------------------------------------------------------------------
       
   559 //
       
   560 void CCMRAudioRecorder::ResumeL()
       
   561     {
       
   562     if ( State() == EStatePaused )
       
   563         {
       
   564         User::LeaveIfError(iThreadProxy.Play());
       
   565 
       
   566         SetState( EStateRecording );
       
   567         iObserver->MaroStateChange( State() );
       
   568         }
       
   569     }
       
   570 
       
   571 // -----------------------------------------------------------------------------
       
   572 // CCMRAudioRecorder::WaitUntilStoppedL
       
   573 // Wait until audio thread has stopped recording
       
   574 // 
       
   575 // -----------------------------------------------------------------------------
       
   576 //
       
   577 void CCMRAudioRecorder::WaitUntilStoppedL()
       
   578     {
       
   579     if ( (State() == EStateRecording) || (State() == EStatePaused) || (State() == EStateStopping))
       
   580         {
       
   581         // not stopped yet
       
   582         User::LeaveIfError(iThreadProxy.WaitUntilStopped());
       
   583         // wait was sync
       
   584         SetState( EStateReadyToRecord );
       
   585         }
       
   586     }
       
   587 
       
   588 // -----------------------------------------------------------------------------
       
   589 // CCMRAudioRecorder::AVSyncAdjustmentStart
       
   590 // Get default AV sync adjustment for start of recording, depending on codec type
       
   591 // 
       
   592 // -----------------------------------------------------------------------------
       
   593 //
       
   594 TInt CCMRAudioRecorder::AVSyncAdjustmentStart()
       
   595     {
       
   596     if ( iConfig && iConfig->IsICMConfigDataAvailable() )
       
   597         {
       
   598 		return iConfig->VideoQualitySettings().iAVSyncStartDelay;
       
   599         }
       
   600     
       
   601     TCMRCodecType type = ECodecTypeSW;
       
   602 
       
   603     TRAPD(err, type = iAudioCodecs->GetCodecDataL()->GetCodecSWHWTypeL());
       
   604     ARASSERT( err == KErrNone );
       
   605     if ( err ) {}
       
   606 
       
   607     if ( type == ECodecTypeHW )
       
   608         {
       
   609         //HW codecs (DevSound outputs compressed data)
       
   610         return KCMRInitialVideoAudioTimeSyncHW;
       
   611         }
       
   612     else
       
   613         {
       
   614         //SW codecs (DevSound outputs PCM)
       
   615         return KCMRInitialVideoAudioTimeSyncSW;
       
   616         }
       
   617 
       
   618     }
       
   619 
       
   620 // -----------------------------------------------------------------------------
       
   621 // CCMRAudioRecorder::AVSyncAdjustmentResume
       
   622 // Get default AV sync adjustment for resume of recording, depending on codec type
       
   623 // 
       
   624 // -----------------------------------------------------------------------------
       
   625 //
       
   626 TInt CCMRAudioRecorder::AVSyncAdjustmentResume()
       
   627     {
       
   628     if ( iConfig && iConfig->IsICMConfigDataAvailable() )
       
   629         {
       
   630 		return iConfig->VideoQualitySettings().iAVSyncResumeDelay;
       
   631         }
       
   632     
       
   633     TCMRCodecType type = ECodecTypeSW;
       
   634 
       
   635     TRAPD(err, type = iAudioCodecs->GetCodecDataL()->GetCodecSWHWTypeL());
       
   636     ARASSERT( err == KErrNone );
       
   637     if ( err ) {}
       
   638 
       
   639     if ( type == ECodecTypeHW )
       
   640         {
       
   641         //HW codecs (DevSound outputs compressed data)
       
   642         return KCMRPauseVideoAudioTimeSyncHW;
       
   643         }
       
   644     else
       
   645         {
       
   646         //SW codecs (DevSound outputs PCM)
       
   647         return KCMRPauseVideoAudioTimeSyncSW;
       
   648         }
       
   649 
       
   650     }
       
   651 
       
   652 // -----------------------------------------------------------------------------
       
   653 // CCMRAudioRecorder::HandleEvent
       
   654 // Handle event from audio thread
       
   655 //
       
   656 // -----------------------------------------------------------------------------
       
   657 //
       
   658 void CCMRAudioRecorder::HandleEvent(const TMMFEvent& aEvent)
       
   659     {
       
   660     PRINT((_L("CCMRAudioRecorder::HandleEvent(), aEvent.iEventType %d   aEvent.iErrorCode %d"), aEvent.iEventType.iUid, aEvent.iErrorCode ));
       
   661 
       
   662     if (aEvent.iEventType == KMMFEventCategoryPlaybackComplete)
       
   663         {
       
   664         // Lose of audio resource is signalled like this. Also some errors are signaled using this event
       
   665         // If aEvent.iErrorCode == KErrDied, dev policy kicked us out, if it is something else, some other error occurred
       
   666         // audio-thread goes to stopped state before sending this
       
   667         SetState( EStateReadyToRecord );
       
   668         iObserver->MaroStateChange( State() );
       
   669         iObserver->MaroError( aEvent.iErrorCode );
       
   670         PRINT((_L("CCMRAudioRecorder::HandleEvent(), state changed to ready and error informed") ));
       
   671         }
       
   672     else if (aEvent.iErrorCode != KErrNone ) 
       
   673         {
       
   674         if ( aEvent.iErrorCode == KErrServerTerminated )
       
   675             {
       
   676             // audio thread terminated, no need to stop etc anything
       
   677             PRINT((_L("CCMRAudioRecorder::HandleEvent(), audio thread terminated") ));
       
   678             SetState( EStateNone );
       
   679             iObserver->MaroError( aEvent.iErrorCode );
       
   680             iObserver->MaroStateChange( State() );
       
   681             }
       
   682         else
       
   683             {
       
   684             // some other event, e.g. OOM
       
   685             if ( (State() == EStateRecording) || (State() == EStatePaused) )
       
   686                 { 
       
   687                 // stop first
       
   688                 PRINT((_L("CCMRAudioRecorder::HandleEvent(), error received but must stop first") ));
       
   689                 iErrorCode = aEvent.iErrorCode;
       
   690                 if ( iThreadProxy.Stop() == KErrNone )
       
   691                     {
       
   692                     // wait until stopped
       
   693                     iThreadProxy.WaitUntilStopped();
       
   694                     // wait was sync, can proceed with error handling
       
   695                     }
       
   696                 }
       
   697             //inform observer about error
       
   698             SetState( EStateNone );
       
   699             iObserver->MaroError( aEvent.iErrorCode );
       
   700             iObserver->MaroStateChange( State() );
       
   701             PRINT((_L("CCMRAudioRecorder::HandleEvent(), state changed to ready and error informed") ));
       
   702             }
       
   703         }
       
   704     else
       
   705         {
       
   706         // some event without an errorcode! Don't know if this is possible
       
   707         }
       
   708 
       
   709     }