/*
* Copyright (c) 2002-2007 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: This class implements RateControl for HTTP stream audio player.
*
*/
// INCLUDE FILES
#include <jdebug.h>
#include <e32base.h>
#include "cmmaaudiostreamratecontrol.h"
namespace
{
const TInt KErrorMessageSize = 32;
_LIT(KErrDefaultError, "Symbian OS Error: %d");
}
CMMAAudioStreamRateControl* CMMAAudioStreamRateControl::NewL(CMMAAudioStreamPlayer* aPlayer)
{
CMMAAudioStreamRateControl* self = new(ELeave) CMMAAudioStreamRateControl(aPlayer);
CleanupStack::PushL(self);
self->ConstructL();
CleanupStack::Pop(self);
return self;
}
CMMAAudioStreamRateControl::~CMMAAudioStreamRateControl()
{
DEBUG("MMA:CMMAAudioStreamRateControl::~CMMAAudioStreamRateControl");
if (iPlayer)
{
iPlayer->RemoveStateListener(this);
}
}
CMMAAudioStreamRateControl::CMMAAudioStreamRateControl(CMMAAudioStreamPlayer* aPlayer) :
iPlayer(aPlayer), iCurrentRate(KMMADefaultRate)
{
DEBUG("MMA:CMMAAudioStreamRateControl::CMMAAudioStreamRateControl");
}
void CMMAAudioStreamRateControl::ConstructL()
{
iPlayer->AddStateListenerL(this);
}
void CMMAAudioStreamRateControl::StateChanged(TInt aState)
{
DEBUG("MMA:CMMAAudioStreamRateControl::StateChanged");
if (aState == CMMAPlayer::EStarted && iCurrentRate == KMMAMinRate)
{
// do not post event to Java or change player state
TInt err = iPlayer->Pause();
if (err != KErrNone)
{
DEBUG_INT("CMMAAudioStreamRateControl::StateChanged: Pause error %d", err);
TBuf<KErrorMessageSize> errorMessage;
errorMessage.Format(KErrDefaultError, err);
iPlayer->PostStringEvent(CMMAPlayerEvent::EError, errorMessage);
}
}
}
TInt CMMAAudioStreamRateControl::SetRateL(TInt aRate)
{
DEBUG("MMA:CMMAAudioStreamRateControl::SetRateL");
TInt newRate;
if (aRate <= KMMAMinRate)
{
newRate = KMMAMinRate;
}
else
{
newRate = KMMADefaultRate;
}
if ((iPlayer->State() == CMMAPlayer::EStarted) &&
(newRate != iCurrentRate))
{
if (newRate == KMMAMinRate)
{
// do not post event to Java or change player state
User::LeaveIfError(iPlayer->Pause());
}
else
{
// do not post event to Java or change player state
iPlayer->StartL();
}
}
iCurrentRate = newRate;
return iCurrentRate;
}
TInt CMMAAudioStreamRateControl::RateL()
{
return iCurrentRate;
}
// END OF FILE