Recording in Amr Format

Hi every body,

I want to know if someone success recording in amr file with Nokia 6630 and Nokia 6600 and what I have to do to reach my goal?

The code given here allow you to play an amr file with the sound example given in the sdk , the problem that I can not record in amr format with it as written in newlc.



const TUid KMMFExControllerUID = {0x101F5022};
const TUid KMMFExDesFormatUID = {0x101FAF66};
const TUint32 KMMFFourCCCodeAMR = {0x524d4120};

_LIT(KRecorderFile, "C:\\System\\Apps\\Sound\\record.amr");


void CRecorderAdapter::ConstructL()
{
iMdaAudioRecorderUtility = CMdaAudioRecorderUtility::NewL(*this);


// Open an existing sample file for playback or recording,
// causes MMdaObjectStateChangeObserver::MoscoStateChangeEvent to be called
//iMdaAudioRecorderUtility->OpenFileL(KRecorderFile);
iMdaAudioRecorderUtility->OpenFileL(KRecorderFile,KMMFExControllerUID,KMMFExControllerUID,KMMFExDesFormatUID,KMMFFourCCCodeAMR);
}



Please help me;

Thanks to all.

Houda

Hi,

i dont use CMdaAudioRecorderUtility, but are you sure about USED UIDS? I tried to run those code below to enumerate ALL plugins on my N6630:

//////////////////////////////////////////////////////////////////////////////////////////////////////
// log data informations
_LIT8( KController, "Controller : %d \xa\xd");
_LIT8( KType, "Type : %S \xa\xd");
_LIT8( KDisplayName, "Display name: %S \xa\xd");
_LIT8( KSupplier, "Supplier : %S \xa\xd");
_LIT8( KExtension, "Extension : %S \xa\xd");
_LIT8( KHeader, "Header : %S \xa\xd");
_LIT8( KMime, "Mime : %S \xa\xd");
_LIT8( KUid, "UID : 0x%x \xa\xd");
_LIT8( KRecord, "Record");
_LIT8( KPlay, "Play");
_LIT8( KDelimiter, "_______________________________________________");

//----------------------------------------------------------------
//
// Resolve all audio plugins
//
//----------------------------------------------------------------
void CPluginTester::ResolvePluginsL()
{

// selection parameters for resolving plugin formats
// from the ECOM registry
CMMFControllerPluginSelectionParameters* cpsp = CMMFControllerPluginSelectionParameters::NewLC();

// defines the format support required
CMMFFormatSelectionParameters* play_params = CMMFFormatSelectionParameters::NewLC();
CMMFFormatSelectionParameters* record_params = CMMFFormatSelectionParameters::NewLC();

// set the play and record format selection parameters to be blank.
cpsp->SetRequiredPlayFormatSupportL( *play_params );
cpsp->SetRequiredRecordFormatSupportL( *record_params );

// set the media ids
RArray<TUid> media_ids;
CleanupClosePushL( media_ids );
User::LeaveIfError( media_ids.Append( KUidMediaTypeAudio ) );

// get plugins that support audio
cpsp->SetMediaIdsL( media_ids, CMMFPluginSelectionParameters::EAllowOnlySuppliedMediaIds );

// Array to hold all the controllers support the match data
cpsp->ListImplementationsL( iPlugins );

CleanupStack::PopAndDestroy();
CleanupStack::PopAndDestroy( record_params );
CleanupStack::PopAndDestroy( play_params );
CleanupStack::PopAndDestroy( cpsp );
}

//----------------------------------------------------------------
//
// Save audio plugins information into text file
//
//----------------------------------------------------------------
TInt CPluginTester::SavePluginsToFile( RFs& aFs, TFileName aFileName )
{

// get all audio plugins
TRAPD( error, { ResolvePluginsL(); } )
if ( error != KErrNone )
return error;

// delete existing file
if ( BaflUtils::FileExists( aFs , aFileName ) )
if ( BaflUtils::DeleteFile( aFs, aFileName ) != KErrNone )
return KErrAccessDenied;

RFile file;
error = file.Create( aFs, aFileName, EFileWrite );
if ( error != KErrNone )
return error;
CleanupClosePushL( file );

// plugin data
TBuf<256> data16;
TBuf8<256> data8;
TBuf8<256> formatted8;
CDesC8Array* data_array;
TUid uid;

// crlf
TBuf8<2> crlf;
crlf.Append( 0x0a );
crlf.Append( 0x0d );
// loop through all resolved ECom controller plugins
for( TInt i = 0; i < iPlugins.Count(); ++i )
{
// reocrd and play loop
for ( TInt j = 0; j < 2; j++ )
{
RMMFFormatImplInfoArray rp_formats;
if ( j == 0 )
rp_formats = iPlugins[ i ]->RecordFormats();
else

rp_formats = iPlugins[ i ]->PlayFormats();

// go through formats
for ( TInt k = 0; k < rp_formats.Count(); k++ )
{
// header
file.Write ( KDelimiter );
file.Write ( crlf );
formatted8.Format( KController, i );

// controller uid
formatted8.Format( KUid, iPlugins[ i ]->Uid().iUid );
file.Write ( formatted8 );

if ( j == 0 )
formatted8.Format( KType, &KRecord() );
else
formatted8.Format( KType, &KPlay() );
file.Write ( formatted8 );

file.Write ( KDelimiter );
file.Write ( crlf );

// An object of this type may describe either a concrete format plugin
CMMFFormatImplementationInformation* format = rp_formats[ k ];

// display name
data16.Copy( format->DisplayName() );
CnvUtfConverter::ConvertFromUnicodeToUtf8( data8, data16 );
formatted8.Format( KDisplayName, &data8 );
file.Write ( formatted8 );

// supplier
data16.Copy( format->Supplier() );
CnvUtfConverter::ConvertFromUnicodeToUtf8( data8, data16 );
formatted8.Format( KSupplier, &data8 );
file.Write( formatted8 );

// extensions
data_array = ( CDesC8Array * )&format->SupportedFileExtensions();
for ( TInt l = 0; l < data_array->Count(); ++l )
{
formatted8.Format( KExtension, &(*data_array)[ l ] );
file.Write ( formatted8 );
}

// headers
data_array = ( CDesC8Array * )&format->SupportedHeaderData();
for ( l = 0; l < data_array->Count(); ++l )
{
formatted8.Format( KHeader, &(*data_array)[ l ] );
file.Write ( formatted8 );
}

// mime types
data_array = ( CDesC8Array * )&format->SupportedMimeTypes();
for ( l = 0; l < data_array->Count(); ++l )
{
formatted8.Format( KMime, &(*data_array)[ l ] );
file.Write ( formatted8 );
}

// plugin uid
uid = format->Uid();
formatted8.Format( KUid, uid.iUid );
file.Write ( formatted8 );
}
}
}
CleanupStack::PopAndDestroy();
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
Where used memeber in the code are defined as:
// all plugins
RMMFControllerImplInfoArray iPlugins;

The result I will put into next reply.

Bye
STEN

Hi,
there is the generated file:

_______________________________________________
UID : 101f5022
Type : Record
_______________________________________________
Display name: WAV Write Format||Copyright 2002 Symbian Ltd. All Rights Reserved.||
Supplier : Symbian
Extension : .wav
Header : RIFF????WAVE
Mime : audio/wav
Mime : audio/x-wav
UID : 101f55e2
_______________________________________________
UID : 101f5022
Type : Record
_______________________________________________
Display name: AU Write Format||Copyright 1997-2001 Symbian Ltd. All Rights Reserved.||
Supplier : Symbian
Extension : .au
Header : .snd
Mime : audio/basic
Mime : audio/x-au
Mime : audio/au
Mime : audio/x-basic
UID : 101f5c13
_______________________________________________
UID : 101f5022
Type : Record
_______________________________________________
Display name: RAW Write Format||Copyright 1997-2001 Symbian Ltd. All Rights Reserved.||
Supplier : Symbian
Extension : .raw
UID : 101f5c17
_______________________________________________
UID : 101f5022
Type : Play
_______________________________________________
Display name: WAV Read Format||Copyright 2002 Symbian Ltd. All Rights Reserved.||
Supplier : Symbian
Extension : .wav
Header : RIFF????WAVE
Mime : audio/wav
Mime : audio/x-wav
UID : 101f55e1
_______________________________________________
UID : 101f5022
Type : Play
_______________________________________________
Display name: AU Read Format||Copyright 1997-2001 Symbian Ltd. All Rights Reserved.||
Supplier : Symbian
Extension : .au
Header : .snd
Mime : audio/basic
Mime : audio/x-au
Mime : audio/au
Mime : audio/x-basic
UID : 101f5c12
_______________________________________________
UID : 101f5022
Type : Play
_______________________________________________
Display name: RAW Read Format||Copyright 1997-2001 Symbian Ltd. All Rights Reserved.||
Supplier : Symbian
Extension : .raw
UID : 101f5c16
_______________________________________________
UID : 101f7d96
Type : Play
_______________________________________________
Display name: Tone Sequence Play Format
Supplier : Nokia
Extension : ?
Header : 
Header : J:
UID : 101fafac
_______________________________________________
UID : 101f7d96
Type : Play
_______________________________________________
Display name: Tone Sequence Play Format
Supplier : Symbian
Extension : .nrt
Extension : .rng
Header : ?application/vnd.nokia.ringing-tone
UID : 101fafab
_______________________________________________
UID : 101f7d96
Type : Play
_______________________________________________
Display name: Tone Sequence Play Format
Supplier : Symbian
Extension : .nrt
Extension : .rng
UID : 101f7dc5
_______________________________________________
UID : 101f7d96
Type : Play
_______________________________________________
Display name: Tone Sequence Play Format
Supplier : Symbian
Extension : .sqn
Header : SQNC
UID : 101faf8c
_______________________________________________
UID : 101f8b24
Type : Play
_______________________________________________
Display name: BAE Structured Audio Read Format||Beatnik Inc.||
Supplier : Beatnik
Extension : .mid
Header : ?audio/sp-midi
Header : MThd???????????????????ð??

Mime : audio/sp-midi
UID : 101f8b35
_______________________________________________
UID : 101f8b24
Type : Play
_______________________________________________
Display name: BAE Structured Audio Read Format||Beatnik Inc.||
Supplier : Beatnik
Extension : .mxmf
Header : ?audio/mobile-xmf
Header : XMF_2.00
Mime : audio/mobile-xmf
UID : 101f8b36
_______________________________________________
UID : 101f8b24
Type : Play
_______________________________________________
Display name: BAE Structured Audio Read Format||Beatnik Inc.||
Supplier : Beatnik
Extension : .rmf
Header : ?audio/x-beatnik-rmf
Header : IREZ
Mime : audio/x-beatnik-rmf
UID : 10202709
_______________________________________________
UID : 101f8b24
Type : Play
_______________________________________________
Display name: BAE Structured Audio Read Format||Beatnik Inc.||
Supplier : Beatnik
Header : ?audio/x-rmf
Mime : audio/x-rmf
UID : 1020270a
_______________________________________________
UID : 101f8b24
Type : Play
_______________________________________________
Display name: BAE Structured Audio Read Format||Beatnik Inc.||
Supplier : Beatnik
Header : ?audio/rmf
Mime : audio/rmf
UID : 101f8b29
_______________________________________________
UID : 101f8b24
Type : Play
_______________________________________________
Display name: BAE Structured Audio Read Format||Beatnik Inc.||
Supplier : Beatnik
Extension : .mid
Header : ?audio/midi
Header : MThd
Mime : audio/midi
UID : 101f8b26
_______________________________________________
UID : 101faf7d
Type : Play
_______________________________________________
Display name: AMR Read Format
Supplier : Nokia
Extension : .amr
Header : #!AMR

Header : ?audio/amr
Mime : audio/amr
UID : 101f5c50
_______________________________________________
UID : 101faf7d
Type : Play
_______________________________________________
Display name: AMRWB Read Format
Supplier : Nokia
Extension : .awb
Header : #!AMR-WB

Header : ?audio/amr-wb
Mime : audio/amr-wb
UID : 101f7b1b
_______________________________________________
UID : 101faf7d
Type : Play
_______________________________________________
Display name: AAC Read Format
Supplier : Nokia
Extension : .aac
Header : ?audio/aac
Header : ADIF
Mime : audio/aac
UID : 101f7b1f
_______________________________________________
UID : 101faf7d
Type : Play
_______________________________________________
Display name: AAC Read Format
Supplier : Nokia
Extension : .aac
Mime : audio/aac
UID : 101f7b1e
_______________________________________________
UID : 101faf7d
Type : Play
_______________________________________________
Display name: MP3 Read Format
Supplier : Nokia
Extension : .mp3
Header : ??audio/mpeg
Header : ?audio/mp3
Mime : audio/mpeg
UID : 101f7b1c
_______________________________________________
UID : 101faf7d
Type : Play
_______________________________________________
Display name: MP3 Read Format
Supplier : Nokia
Extension : .mp3
Mime : audio/mpeg
UID : 101f7b1d
_______________________________________________
UID : 101faf7e
Type : Record
_______________________________________________
Display name: AMR Write Format
Supplier : Nokia
Extension : .amr
Header : #!AMR

Mime : audio/amr
UID : 101faf7e
_______________________________________________
UID : 101fafb1
Type : Play
_______________________________________________
Display name: 3GP Read Format
Supplier : Nokia
Extension : .3gp
Header : ????ftyp3gp
Header : ?audio/3gpp
Mime : audio/3gpp
UID : 0
_______________________________________________
UID : 101fafb1
Type : Play
_______________________________________________
Display name: MP4 Read Format
Supplier : Nokia
Extension : .m4a
Extension : .mp4
Header : ????ftypM4A
Header : ????ftypmp4
Header : ?audio/m4a
Header : ?audio/mp4
Mime : audio/mp4
UID : 1111
_______________________________________________
UID : 101fafb1
Type : Play
_______________________________________________
Display name: MP4 Read Format
Supplier : Nokia
Extension : .m4a
Extension : .mp4
Header : ????ftypM4A
Header : ????ftypmp4
Mime : audio/mp4
UID : 3333
_______________________________________________
UID : 101fafb1
Type : Play
_______________________________________________
Display name: 3G2 Read Format
Supplier : Nokia
Extension : .3g2
Header : ????ftyp3g2
Header : ?audio/3gpp2
Mime : audio/3gpp2
UID : 4444
_______________________________________________
UID : 101fafb1
Type : Play
_______________________________________________
Display name: 3G2 Read Format
Supplier : Nokia
Extension : .3g2
Header : ????ftyp3g2
Mime : audio/3gpp2
UID : 5555

Bye STEN

Hi ,

so as I understand those UIDs should be used in the OpenFileL() method.

// record: WAV, AU, RAW
// play : WAV, AU, RAW
const TUid KUidControllerAudio1 = { 0x101f5022 };
// record: ---
// play : AMR, AMR-WB, AAC, MP3
const TUid KUidControllerAudio2 = { 0x101faf7d };
// record: AMR
// play : ---
const TUid KUidControllerAudio3 = { 0x101faf7e };

// write into wav
const TUid KUid_WAV_WriteFormat = { 0x101f55e2 };
// write into amr
const TUid KUid_AMR_WriteFormat = { 0x101faf7e };
// read amr
const TUid KUid_AMR_ReadFormat = { 0x101f5c50 };
// read amr-wb
const TUid KUid_AMRWB_ReadFormat = { 0x101f7b1b };
// read mp3
const TUid KUid_MP3_ReadFormat = { 0x101f7b1c };

I test it on emulator for WAV and it works, but when i tried to use it on N6630 I receive KErrNotSupported in the MoscoStateChangeEvent(). Did I do anything wrong??????

#ifdef __WINS__
iRecorder->OpenFileL( iTmpFile, KUidControllerAudio1, KUidControllerAudio1, KUid_WAV_WriteFormat );
#else
iRecorder->OpenFileL( iTmpFile, KUidControllerAudio3, KNullUid, KUid_AMR_WriteFormat );
#endif

Bye STEN

Hi Sten,

You said:

i dont use CMdaAudioRecorderUtility

Does this mean that you use something else entirely for audio recording, or simply don't work with audio recording at all?

Hi,

I dont use audio recording classes. I am streaming PCM16 format into buffer and than I encode it to AMR (see my other posts). It is not best, but always working solution... The only weakness of it is posiibility of data underflow, when for example file system is used during recording... So you must keep an eye if the size of streamed data is the same as you expected and leave if error detected.

BTW. Did you test the recording with the new UIDs???? I test it just little bit - code works perfectly for WAV, but when I changed UID it leaves -5 KErrNotSupported. I think that I must do something wrong...

I donr want jump to conclusions , but it seems, that Nokia simply bullshit from us:)

Ask if I could help you...
Bye
STeN

Hi STeN,

Actually, I occasionally do some research for my programming team, so many of the technical points are beyond me, however audio recording has been a huge pain in our ass, for every phone model, and nearly every firmware update, so I'm always digging for more info on the subject.

I appreciate your reply.

Cheers!

Josh

Hi,

I tried to use CMdaAudioRecorderUtility->RecordL() on N95 with AMR UIDs as you indicated. It gives "Feature not supported".

Did anyone write a recording application succesfully using CMdaAudioRecorderUtility->RecordL() ?

BR,

Rene

Hi,

In general you shouldn't hard code UIDs in your application for these things - it isn't portable. If you need to use a specific controller you should query the available controller plug-ins and select the appropriate one.

Much better if possible though, is just to set the destination format and data type then open the file with one of the overloads that doesn't take any UIDs at all.

Hope that helps,
Sorcery

Hi Sorcery-ltd,

I am just writing a test application to see if the requirement of my customer (recording using AMR-NB at 12.2Kbps) is feasible or not on S60. I am supprised that
CMdaAudioRecorderUtility->RecordL() gives "Feature not supported", but CMdaAudioInputStream works.

So my question stays: Did anyone use CMdaAudioRecorderUtility succesfully on S60? Is there an example using this specific class. It suggest it can also stream to a URL (but unknown if this works and if not why it does not work).

We will not use any hardcoded UIDs in our application when it is released to market. Thanks for this general advice.

BR,

Rene

Hi,

I haven't personally recorded AMR with the CMdaAudioRecorderUtility, however, I remember seeing other posts on this forum for people that have. Have a search.

Have you tried what I was suggesting and just specify the format and type you want via the appropriate API calls and then just opening a file to record to without specifying any UIDs? It's actually quite likely that you are getting "Feature not supported" because the UIDs you are using are incorrect - if you leave the system to pick the appropriate controller via the method I suggest then you will find out if it is actually possible.

It is in fact possible that on some models you would be able to record in some formats via CMdaAudioInputStream and not via CMdaAudioRecorderUtility. That's because the latter requires an appropriate controller plug-in whereas the former just requires support for the codec in the DevSound layer. However, other devices may have the support the other way around, particularly older devices. That is there may be a controller plug-in and a soft codec but no support for the codec in DevSound. In that case CMdaAudioInputStream wouldn't work.

This is a tricky area where support has changed over time and you need to be careful about what devices you want to support.

Hope that helps,
Sorcery

Hi Sorcery,

thanks for this clarification. Unfortunately I have to pause this project for 1-2 weeks (the next 2 weeks I have some other development priorities). I will get back when I have some more results.

BR,

Rene

could anyone tell me what different encoded video files'headers are?