engine/src/SoundEngine.cpp
author Brendan Donegan <brendand@symbian.org>
Fri, 28 May 2010 17:43:08 +0100
branchsymbian1
changeset 145 cc0182a5da39
parent 2 29cda98b007e
permissions -rw-r--r--
Fix for Bug 2604 and bulk of the work towards implementing Bug 2737
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/*
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* Copyright (c) 2007-2010 Sebastian Brannstrom, Lars Persson, EmbedDev AB
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*
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* EmbedDev AB - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include <e32std.h>
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#include "SettingsEngine.h"
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#include "SoundEngine.h"
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#include "PodcastModel.h"
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#include "ShowInfo.h"
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#include "ShowEngine.h"
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CSoundEngine* CSoundEngine::NewL(CPodcastModel& aPodcastModel)
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{
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	CSoundEngine* self = new (ELeave) CSoundEngine(aPodcastModel);
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	CleanupStack::PushL(self);
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	self->ConstructL();
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	CleanupStack::Pop(self);
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	return self;
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}
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CSoundEngine::~CSoundEngine()
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{	
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	iObservers.Close();
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}
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CSoundEngine::CSoundEngine(CPodcastModel& aPodcastModel): iPodcastModel(aPodcastModel)
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{
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}
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void CSoundEngine::ConstructL()
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{   
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}
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EXPORT_C void CSoundEngine::AddObserver(MSoundEngineObserver* aObserver)
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{
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	iObservers.Append(aObserver);
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}
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void CSoundEngine::RemoveObserver(MSoundEngineObserver* observer)
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	{
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	TInt index = iObservers.Find(observer);
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	if (index > KErrNotFound)
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		{
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		iObservers.Remove(index);
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		}
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	}
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void CSoundEngine::OpenFileL(const TDesC& aFileName, TBool aPlayOnInit)
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{
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	iState = ESoundEngineNotInitialized;
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	iMaxPos = 0;
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	iLastOpenedFileName= aFileName;
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	iPlayOnInit = aPlayOnInit;
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	iState = ESoundEngineOpening;
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}
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const TFileName& CSoundEngine::LastFileName()
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{
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	return iLastOpenedFileName;
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}
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EXPORT_C TTimeIntervalMicroSeconds CSoundEngine::Position()
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{
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	TTimeIntervalMicroSeconds pos = 0;
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	if(iState > ESoundEngineOpening)
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	{
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	}
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	// store maximum position, we need this if we get interrupted by a phone call
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	if (pos > iMaxPos) {
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		iMaxPos = pos;
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	}
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	return iMaxPos;
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}
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EXPORT_C void CSoundEngine::SetPosition(TUint aPos)
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{
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	if(iState > ESoundEngineOpening)
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	{
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		TTimeIntervalMicroSeconds pos = ((TUint64)aPos)*1000000;
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		if(iState == ESoundEnginePlaying)
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		{
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			//iPlayer->Pause();
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		}
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		iMaxPos = pos;
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		//iPlayer->SetPosition(pos);
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		if(iState == ESoundEnginePlaying)
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		{
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			//iPlayer->Play();
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		}
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	}
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}
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EXPORT_C void CSoundEngine::Play()
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{
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	if(iState > ESoundEngineOpening)
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	{
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		//iPlayer->SetPosition(iMaxPos);
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		//iPlayer->Play();
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		iState = ESoundEnginePlaying;
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		NotifyPlaybackStarted();
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	}
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}
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EXPORT_C void CSoundEngine::Stop(TBool aMarkPlayed)
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{
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	if(iState > ESoundEngineOpening)
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	{
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		if (aMarkPlayed) {
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			// seem to need to do this here, even though we do it in MapcPlayComplete
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			iPodcastModel.PlayingPodcast()->SetPlayState(EPlayed);
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		}
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		iState = ESoundEngineStopped;
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		SetPosition(0);
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		//iPlayer->Stop();
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		//iPlayer->Close();
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		iMaxPos = 0;
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		NotifyPlaybackStopped();
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	}
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}
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EXPORT_C void CSoundEngine::Pause(TBool aOverrideState)
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{
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	DP("Pause");
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	if(iState > ESoundEngineOpening || aOverrideState)
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	{
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		iState = ESoundEnginePaused;
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		//iPlayer->Pause();
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		// had a crash here, so we check for NULL first
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		if (iPodcastModel.PlayingPodcast() != NULL) {
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			iPodcastModel.PlayingPodcast()->SetPosition(iMaxPos);
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		}
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	}
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}
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EXPORT_C TSoundEngineState CSoundEngine::State()
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{
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	return iState;
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}
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void CSoundEngine::NotifyPlaybackStopped()
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	{
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	for (int i=0;i<iObservers.Count();i++) {
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		TRAPD(err, iObservers[i]->PlaybackStoppedL());
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	}
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	}
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void CSoundEngine::NotifyPlaybackStarted()
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	{
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	for (int i=0;i<iObservers.Count();i++) {
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		TRAPD(err, iObservers[i]->PlaybackStartedL());
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	}
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	}
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void CSoundEngine::NotifyPlaybackInitialized()
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	{
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	for (int i=0;i<iObservers.Count();i++) {
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		TRAPD(err, iObservers[i]->PlaybackInitializedL());
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	}
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	}
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void CSoundEngine::NotifyVolumeChanged()
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	{
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	TInt max = 0;//iPlayer->MaxVolume();
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	TInt vol = 0;
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	//iPlayer->GetVolume(vol);
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	DP2("NotifyVolumeChanged, vol=%d, max=%d", vol, max);
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	for (int i=0;i<iObservers.Count();i++) {
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		TRAPD(err, iObservers[i]->VolumeChanged(vol, max));
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	}
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	}