how to play amr file

Hi,
AMR files can be very well played. CMdaAudioPlayer utility does not recognize the AMR mime type ( don't know the reason ) but you can very well use CMdaAudioRecoder utility apis for playing purpose. In this case you have to use OpenL instead of OpenfileL. In OpenL() you can specify the UIDs of controller and AMR format.
USe as following:
const TUid KMMFExControllerUID = {0x101F5022};
const TUid KMMFExDesFormatUID = {0x101FAF66};

Use the playL() api to play the AMR file when Open has completed sucessfully.

I am expecting you are using Symbian 7.0 and above .

Hope this will help.

-void*

Hi,
 You can use the following API from CMdaAudioRecordutility:
-----------
void OpenFileL(const TDesC& aFileName, TUid aRecordControllerUid, TUid aPlaybackControllerUid=KNullUid, TUid aFormatUid=KNullUid, TFourCC aCodec=NULL);
----------
Where Filename is KAMRFileName ( give your file name )

aRecordControllerUid is KMMFExControllerUID  ( ID in previous post )

aPlaybackControllerUid is KMMFExControllerUID  ( ID in previous post )
// Record and playback controller UID are same since Audio controller in one for both Record and playback.

aFormatUid is KMMFExDesFormatUID  ( ID in previous post )

TFourCC aCodec  is KMMFFourCCCodeAMR

Just use KMMFFourCCCodeAMR. It is already defined in MMF ( MmfFourCC.h)
If this is not defined then give
-------------
const TUint32 KMMFFourCCCodeAMR = 0x524d4120;
-----------

Once OpenFileL completes it goes to call back function called MoscoStateChangeEvent. Its a pure virtual function. I guess you might have already implemented this. Handle the states there ( refer sound example).
Play it when Current state is EOpen using Play() API.

Hope it helps.

-void*

if i want to record a audio to amr format
How can i manage this method
                 MoscoStateChangeEvent

please

well i succeeded in playing amr in nokia 6600 but  the same does not work in 6670 pls help.......

Could you please explain to me how to play amr on UIQ?
I have in CMdaAudioRecordUtility void OpenL(TMdaClipLocation* aLocation, TMdaClipFormat* aFormat, TMdaPackage* aArg1, TMdaPackage* aArg2) = 0;
 I try to do the following:
in .h define the Amr classes, derived form TMdaClipFormat/TMdaPackage for codec, format and audio settings

Then in .cpp do the following
OpenL failes.
What is the way-out? How can I play AMR on UIQ 2.1?

 Hi everybody,

I have been trying to solve the problem "how to play amr file".

I used CMdaRecorderUtility class for this purpose. I did the following:

//Constant declarations

_LIT(KAmrFile,"\\system\\apps\\AudioPlayer\\sample.amr");
const TUid KMMFExControllerUID = {0x101F5022};
const TUid KMMFExDesFormatUID = {0x101FAF66};
const TUint32 KMMFFourCCCodeAMR = 0x524d4120;

void OpenAmrFile()
{
if(iMdaAudioRecorderUtility->State()==iMdaAudioRecorderUtility->ENotReady)
{
    iMdaAudioRecorderUtility->OpenFileL(KAmrFile,KMMFExControllerUID,                  KMMFExControllerUID,KMMFExDesFormatUID,KMMFFourCCCodeAMR);
}
}

//It does not get the EOpen state, so state is not opened here which should be opened.
void CAudioPlayerEngine::MoscoStateChangeEvent(CBase* aObject, TInt aPreviousState, TInt aCurrentState, TInt aErrorCode)
{
//So I can not use any checking condition
PlayL();
}

void PlayL()
{
    // Play through the device speaker
    iMdaAudioRecorderUtility->SetAudioDeviceMode(CMdaAudioRecorderUtility::ELocal);

    // Set maximum volume for playback
    iMdaAudioRecorderUtility->SetVolume(iMdaAudioRecorderUtility->MaxVolume());

    // Set the playback position to the start of the file
    iMdaAudioRecorderUtility->SetPosition(TTimeIntervalMicroSeconds(0));
    //

    iMdaAudioRecorderUtility->PlayL();
}

//** I get error message "Feature not supported" for PlayL()
iMdaAudioRecorderUtility->PlayL();

I would really appreciate, if anybody comments on this.