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/*
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* Copyright (c) 2002-2007 Nokia Corporation and/or its subsidiary(-ies).
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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 "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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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: This class implements RateControl for HTTP stream audio player.
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*
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*/
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// INCLUDE FILES
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#include <jdebug.h>
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#include <e32base.h>
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#include "cmmaaudiostreamratecontrol.h"
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namespace
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{
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const TInt KErrorMessageSize = 32;
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_LIT(KErrDefaultError, "Symbian OS Error: %d");
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}
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CMMAAudioStreamRateControl* CMMAAudioStreamRateControl::NewL(CMMAAudioStreamPlayer* aPlayer)
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{
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CMMAAudioStreamRateControl* self = new(ELeave) CMMAAudioStreamRateControl(aPlayer);
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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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CMMAAudioStreamRateControl::~CMMAAudioStreamRateControl()
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{
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DEBUG("MMA:CMMAAudioStreamRateControl::~CMMAAudioStreamRateControl");
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if (iPlayer)
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{
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iPlayer->RemoveStateListener(this);
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}
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}
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CMMAAudioStreamRateControl::CMMAAudioStreamRateControl(CMMAAudioStreamPlayer* aPlayer) :
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iPlayer(aPlayer), iCurrentRate(KMMADefaultRate)
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{
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DEBUG("MMA:CMMAAudioStreamRateControl::CMMAAudioStreamRateControl");
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}
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void CMMAAudioStreamRateControl::ConstructL()
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{
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iPlayer->AddStateListenerL(this);
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}
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void CMMAAudioStreamRateControl::StateChanged(TInt aState)
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{
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DEBUG("MMA:CMMAAudioStreamRateControl::StateChanged");
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if (aState == CMMAPlayer::EStarted && iCurrentRate == KMMAMinRate)
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{
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// do not post event to Java or change player state
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TInt err = iPlayer->Pause();
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if (err != KErrNone)
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{
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DEBUG_INT("CMMAAudioStreamRateControl::StateChanged: Pause error %d", err);
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TBuf<KErrorMessageSize> errorMessage;
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errorMessage.Format(KErrDefaultError, err);
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iPlayer->PostStringEvent(CMMAPlayerEvent::EError, errorMessage);
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}
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}
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}
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TInt CMMAAudioStreamRateControl::SetRateL(TInt aRate)
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{
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DEBUG("MMA:CMMAAudioStreamRateControl::SetRateL");
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TInt newRate;
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if (aRate <= KMMAMinRate)
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{
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newRate = KMMAMinRate;
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}
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else
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{
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newRate = KMMADefaultRate;
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}
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if ((iPlayer->State() == CMMAPlayer::EStarted) &&
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(newRate != iCurrentRate))
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{
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if (newRate == KMMAMinRate)
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{
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// do not post event to Java or change player state
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User::LeaveIfError(iPlayer->Pause());
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}
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else
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{
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// do not post event to Java or change player state
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iPlayer->StartL(ETrue);
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}
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}
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iCurrentRate = newRate;
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return iCurrentRate;
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}
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TInt CMMAAudioStreamRateControl::RateL()
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{
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return iCurrentRate;
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}
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// END OF FILE
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