CMdaAudioPlayerUtility::MaxVolume() returns Zero

[ashraf fawzy]

Hi all, after a lot of digging I couldn't find what is wrong in my code ,

I'm using S60 5th Ed SDK, and testing on Symbian^3 device, and I'm using CAudioOutput API to route the sounds(CAudioOutput::EAll).

All discussions say don't hard-code the volume value cause it differs between platforms, So here is my code that returns Zero :

/*
 * PlayUtility.cpp
 *
 *  Created on: Apr 6, 2011
 *      Author: MrAlshahawy
 */
//#include <eikenv.h>
#include <MdaAudioTonePlayer.h>
#include <eikmenup.h>
#include "PlayUtility.h"
#include "GlobalVar.h"
#include <eikenv.h>

const TTimeIntervalMicroSeconds  SetToBeg = 0;

CPlayerUtility* CPlayerUtility::NewL(const TDesC& aFileName)
{
    CPlayerUtility* self = NewLC(aFileName);
    CleanupStack::Pop(self);  
    return self;
}
 
CPlayerUtility* CPlayerUtility::NewLC(const TDesC& aFileName)
{
    CPlayerUtility* self = new (ELeave) CPlayerUtility();
    CleanupStack::PushL(self);
    self->ConstructL(aFileName);
    return self;
}
 
CPlayerUtility::~CPlayerUtility()
{
    
    if(iAudioOutput)
    	{
			delete iAudioOutput;
			iAudioOutput = NULL;
    	}
    
    if(iPlayUtility)
    	{
    		iPlayUtility->Stop();
    		iPlayUtility->Close();
    		delete iPlayUtility;
    		iPlayUtility = NULL;
    	}
    
}
 
CPlayerUtility::CPlayerUtility()
{
}
 
void CPlayerUtility::ConstructL(const TDesC& aFileName)
{
	//If you would like to play buffers instead of files you can change the NewFilePlayerL to be NewDesPlayerL instead. 
    iPlayUtility = CMdaAudioPlayerUtility::NewFilePlayerL(aFileName, *this);
    
    	
}
 
void CPlayerUtility::PlaySoundL(TDesC& aFileName, TInt& VolumeLevel)
{

	 iPlayUtility->Stop();
	 iPlayUtility->Close();
	
	 
			
	iPlayUtility->OpenFileL(aFileName);
	
	TInt x = ( VolumeLevel * iPlayUtility->MaxVolume())/10;
	
	TBuf<20> buf;buf.Num(iPlayUtility->MaxVolume());  //-----------> always shows zero and no voice heard
	CEikonEnv::InfoWinL(_L("MaxVolume is :"),buf); 

	iPlayUtility->SetVolume(x);// And x here is Zero	

	CEikonEnv::InfoWinL(_L(""),_L("")); // if I add this line it plays the sound high as if it resets volume level, If I remove it no voice heard
	
	iPlayUtility->Play();
}
 
void CPlayerUtility::StopSound()
{
	iPlayUtility->Stop();
	iPlayUtility->Close();
}
 
 //The MapcPlayComplete method is called when playing of audio is completed. You can then restart playing the file by calling Play function again. 
void CPlayerUtility::MapcPlayComplete(TInt /*aError*/)
{
	
}
//Method MapcInitComplete() is called when the file opening(NewFilePlayerL) is completed
void CPlayerUtility::MapcInitComplete(TInt aError, const TTimeIntervalMicroSeconds& /*aDuration*/)	
{
	if (aError == KErrNone)
		{
			iAudioOutput = CAudioOutput::NewL(*iPlayUtility);
			iAudioOutput->SetAudioOutputL(CAudioOutput::EAll);
		}
	else
		{
			CEikonEnv::InfoWinL(_L("Audio File Format Not Supported"),_L(""));
		}
	
}



void CPlayerUtility::ActivityDetected()
	{
	// Stop sound here .............
	
	CPlayerUtility::StopSound();
	
	}

Many thanks in advance.

[symbianyucca]

what about trying to get the max volume on init complete, also you can not call play before init complete is called.

[ashraf fawzy]

Many thanks symbianyucca for your help, it really helped a lot.

And I wonder why S60 3rd Ed FP1 SDK didn't mention clearly that "OpenFileL" calls "MapcInitComplete" as "NewFilePlayerL" does ?!


That's why I thought that "MapcInitComplete" only called once when we initialize it, which led me to a chain of misunderstood code.

[symbianyucca]

it is mentioned somewhere, basically the logic has always been that you first open the file, wait untill the initialization is done, and then you play it.

[ashraf fawzy]

And that's what I have done and got it works based on your advice.

Best Regards.