NewLC - how to play amr file - Comments

Re: how to play amr file

pakornsak — Wed, 05 Nov 2008 06:07:36 +0100

Sorry, for dig old post.
But this maybe helpful for AudioRecorder developer like me.
(I'm working with SDK 2nd FP1 (OS 7.0s), )

Example: "C:\Symbian\7.0s\Series60_v21_CW\Series60Ex\sound\"

-----------------------------------------------------------------------------
//from mmfcontrollerimplementationuids.hrh
#define KMmfUidControllerAudio 0x101F5022 //(have only one implemented)

//from mmfformatimplementationuids.hrh
#define KMmfUidFormatWAVRead 0x101F55E1
#define KMmfUidFormatWAVWrite 0x101F55E2
#define KAdvancedUidFormatAMRRead 0x101FAF65
#define KAdvancedUidFormatAMRWrite 0x101FAF66

//from mmf/common/mmffourcc.h
const TUint32 KMMFFourCCCodePCM16 = 0x36315020;
const TUint32 KMMFFourCCCodeAMR = 0x524d4120;
-----------------------------------------------------------------------------

const TUid KMMFExControllerUID = {0x101F5022}; //from mmfcontrollerimplementationuids.hrh
const TUid KMMFExDesFormatUID = {0x101FAF66}; //from mmfformatimplementationuids.hrh
const TUint32 KMMFFourCCCodeAMR = 0x524d4120; //from mmf/common/mmffourcc.h

I guess that default of

OpenFileL(const TDesC& aFileName)

similar to,

OpenFileL(const TDesC& aFileName,
           KMMFExControllerUID,
           KMMFExControllerUID ,
           (TUid){KMmfUidFormatWAVWrite},
           KMMFFourCCCodePCM16);

So my AMR Recorder will be

OpenFileL( _L("c:\\hello.amr"),
           KMMFExControllerUID,
           KMMFExControllerUID ,
           (TUid){KAdvancedUidFormatAMRWrite},
           KMMFFourCCCodeAMR );

From Sound example:
iMdaAudioRecorderUtility->CropL(); //cause AMR don't Record, so comment this line

Emulator, it's work but my 3230 isn't work. -*- 1

Re: how to play amr file

shagor — Sat, 16 Jul 2005 11:18:01 +0200

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

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

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

Â Â iMdaAudioRecorderUtility->PlayL();
}

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

I would really appreciate, if anybody comments on this.

UIQ

WoodyAllen — Sun, 01 May 2005 17:53:43 +0200

2tensor
So - any luck with UIQ? You solved the problem?[/b]

AMR on UIQ

tensor — Sun, 27 Mar 2005 14:50:52 +0200

Quote from: void*

You can use the following API from CMdaAudioRecordutility:
-----------
void OpenFileL(const TDesC& aFileName, TUid aRecordControllerUid, TUid aPlaybackControllerUid=KNullUid, TUid aFormatUid=KNullUid, TFourCC aCodec=NULL);
----------
-void*

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

Code:

//uids
const TUid KUidMdaClipFormatAmr = {0x101FAF66};
const TUid KUidMdaAmrCodec = {0x101F5022};
const TUid KUidMdaAmrSettings = {0x524d4120};

//format
class TMdaAmrClipFormat : public TMdaClipFormat
{
public:
inline TMdaAmrClipFormat();
};

//codec
class TMdaAmrCodec : public TMdaPackage
{
public:
inline TMdaAmrCodec(); // Unknown type
protected:
inline TMdaAmrCodec(TUid aUid, TInt aDerivedSize);
};

//audio settings
class TMdaAmrSettings : public TMdaPackage
{
protected:
inline TMdaAmrSettings(TUid aUid, TInt aDerivedSize);
public:
inline TMdaAmrSettings();
};

inline TMdaAmrClipFormat::TMdaAmrClipFormat() :
TMdaClipFormat (KUidMdaClipFormatAmr, sizeof(TMdaAmrClipFormat)) {}

inline TMdaAmrCodec::TMdaAmrCodec() :
TMdaPackage(KUidMdaAmrCodec, KNullUid, sizeof(TMdaAmrCodec)) {}

inline TMdaAmrCodec::TMdaAmrCodec(TUid aUid, TInt aDerivedSize) :
TMdaPackage(KUidMdaAmrCodec, aUid, aDerivedSize) {}

inline TMdaAmrSettings::TMdaAmrSettings(TUid aUid, TInt aDerivedSize) :
TMdaPackage(KUidMdaAmrSettings, aUid, aDerivedSize) {}

inline TMdaAmrSettings::TMdaAmrSettings() : TMdaPackage (KUidMdaAmrSettings, KUidMdaAmrSettings, sizeof(TMdaAmrSettings)) {}

Then in .cpp do the following

Code:

TMdaAmrClipFormat iFormat;
TMdaAmrCodec iCodec;
TMdaFileClipLocation iLocation( aFileName );
TMdaAudioDataSettings iSettings;
iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate8000Hz;
iSettings.iChannels = TMdaAudioDataSettings::EChannelsMono;
//even if I do TMdaAmrSettings iSettings, it still fails
iMdaAudioRecorderUtility->OpenL(&iLocation, &iFormat, &iCodec, &iSettings );

OpenL failes.
What is the way-out? How can I play AMR on UIQ 2.1?

how to play amr file

Girish Sharma — Fri, 25 Mar 2005 06:43:45 +0100

what is the problem that u r facing can u specify it.

exception

jai — Thu, 24 Mar 2005 10:27:14 +0100

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

how to play amr file

sang_sorn-forum — Thu, 10 Feb 2005 06:14:25 +0100

hello,
it for change the menu?

but in sound example
the menu have been dinamic change in

Quote

void CRecorderAdapter::UpdateMenuL(CEikMenuPane* aMenuPane)
{
aMenuPane->SetItemDimmed(ESoundCmdPlay, ETrue);
aMenuPane->SetItemDimmed(ESoundCmdRecord, ETrue);
...
switch (iMdaAudioRecorderUtility->State())
{
case CMdaAudioRecorderUtility::ENotReady:
aMenuPane->SetItemDimmed(ESoundCmdChange, EFalse);
break;
case CMdaAudioRecorderUtility::EOpen:
aMenuPane->SetItemDimmed(ESoundCmdPlay, EFalse);...
... }
}

i try to change OpenFileL method
and other environment is the same old sound example

it's compile complete but when i run and select the record it do nothing

how can command to record from app ui

Re: ddd

Girish Sharma — Thu, 10 Feb 2005 05:58:41 +0100

Quote from: sang_sorn

in sound example i replace openfile line form your comment

//iMdaAudioRecorderUtility->OpenFileL(KRecorderFile);

iMdaAudioRecorderUtility->OpenFileL(KRecorderFile,KMMFExControllerUID,KMMFExControllerUID,KMMFExDesFormatUID,KMMFFourCCCodeAMR);//

but i don't understand MoscoStateChangeEvent and i can't find any code for example

see MoscoStateChangeEvent is a pure virtual function . So u shul d implement it in your source code . If u want to some event like dynamically changing the menu at some event of the MdaAudioRecorderUtility. then u shuld give some body to the function but if u dont want it to do any thing u can leave it empty. like this

Code:

void CAudio1Engine::MoscoStateChangeEvent(CBase* aObject, TInt /*aPreviousState*/, TInt aCurrentState, TInt aErrorCode)
{
}

ddd

sang_sorn-forum — Wed, 09 Feb 2005 23:24:14 +0100

may be this class can record ?

sang_sorn-forum — Wed, 09 Feb 2005 23:21:17 +0100

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

please

Thanks

Girish Sharma — Tue, 08 Feb 2005 13:16:58 +0100

thanks 1000 times void*
thanks for your patience . Mission accomplished
bye

how to play amr file

void_ — Tue, 08 Feb 2005 10:07:26 +0100

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*

hi void

Girish Sharma — Tue, 08 Feb 2005 08:26:59 +0100

hi
I am trying to use the CMdaAudioRecorderUtility class but the OpenL function seems to be confusing .
Can u please send some code explaining the parameters used I am stuck with TMdaClipLocation.
Thanks
Girish sharma

how to play amr file

void_ — Mon, 07 Feb 2005 12:58:28 +0100

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*

SOS

Girish Sharma — Mon, 07 Feb 2005 09:05:13 +0100

Hi all
I want to know if .amr files can be played like .wav,.midi files . I tried to do it but couldn,t do it with CMdaPlayerUtilty. I guess it doesnot supports the file format. Am I right.
So how can one play .amr files the whole mobile world is talking of . As they are quite smaller in size so I think it makes more snse to use them.
Can anybody help me out. I am stuck with it
Anticipating response.

how to play amr file

Girish Sharma — Wed, 02 Feb 2005 08:35:45 +0100