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    41 

    42 #ifndef S60AUDIOCAPTURESESSION_H

    43 #define S60AUDIOCAPTURESESSION_H

    44 

    45 #include <qmobilityglobal.h>

    46 #include <QtCore/qobject.h>

    47 #include <QFile>

    48 #include <QUrl>

    49 #include <QList>

    50 #include <QHash>

    51 #include <QAudioFormat>

    52 

    53 #include <Mda\Common\Audio.h>

    54 #include <Mda\Common\Resource.h>

    55 #include <Mda\Client\Utility.h>

    56 #include <MdaAudioSampleEditor.h>

    57 #include <mmf\common\mmfutilities.h>

    58 

    59 QTM_BEGIN_NAMESPACE

    60 struct ControllerData

    61 {

    62 	int controllerUid;

    63 	int destinationFormatUid;

    64 	QString destinationFormatDescription;

    65 };

    66 

    67 struct CodecData

    68 {

    69     TFourCC fourCC;

    70     QString codecDescription;

    71 };

    72 QTM_END_NAMESPACE

    73 

    74 QTM_USE_NAMESPACE

    75 

    76 class S60AudioCaptureSession : public QObject, public MMdaObjectStateChangeObserver

    77 {

    78     Q_OBJECT

    79     Q_PROPERTY(qint64 position READ position NOTIFY positionChanged)

    80     Q_ENUMS(TAudioCaptureState)

    81 public:

    82     

    83     enum TAudioCaptureState

    84     {

    85         ENotInitialized = 0,

    86         EInitializing,

    87         EInitialized,

    88         EOpenCompelete,

    89         ERecording,

    90         EPaused,

    91         ERecordComplete

    92     };

    93     

    94     S60AudioCaptureSession(QObject *parent = 0);

    95     ~S60AudioCaptureSession();

    96 

    97     QAudioFormat format() const;    

    98     bool setFormat(const QAudioFormat &format);

    99     QStringList supportedAudioCodecs() const;

   100     QString codecDescription(const QString &codecName);

   101     bool setAudioCodec(const QString &codecName);

   102     QString audioCodec() const;

   103     QString audioContainer() const;

   104     QStringList supportedAudioContainers() const;

   105     bool setAudioContainer(const QString &containerMimeType); 

   106     QString audioContainerDescription(const QString &containerName);

   107     QList<int> supportedAudioSampleRates() const;

   108     QUrl outputLocation() const;

   109     bool setOutputLocation(const QUrl& sink);

   110     qint64 position() const;    

   111     void record();

   112     void pause();

   113     void stop();

   114     

   115 private:    

   116     void initializeSessionL();

   117     void updateAudioContainersL();    

   118     void populateAudioCodecsDataL();

   119     void retrieveSupportedAudioSampleRatesL();

   120     void applyAudioSettingsL();

   121     TFourCC determinePCMFormat();

   122     void setDefaultSettings();

   123     void createFileWithHeader(const TPtrC &path);

   124     // MMdaObjectStateChangeObserver

   125     void MoscoStateChangeEvent(CBase* aObject, TInt aPreviousState,

   126             TInt aCurrentState, TInt aErrorCode);

   127     void MoscoStateChangeEventL(CBase* aObject, TInt aPreviousState,

   128             TInt aCurrentState, TInt aErrorCode);    

   129 

   130 public slots:

   131     void setCaptureDevice(const QString &deviceName);

   132 

   133 Q_SIGNALS:

   134     void stateChanged(S60AudioCaptureSession::TAudioCaptureState);

   135     void positionChanged(qint64 position);

   136 

   137 private:

   138     QString m_container;    

   139     QString m_captureDevice;

   140     QUrl m_sink;

   141     TTimeIntervalMicroSeconds m_pausedPosition;

   142     CMdaAudioRecorderUtility *m_recorderUtility;

   143     TAudioCaptureState m_captureState;

   144     QAudioFormat m_format;    

   145     QHash<QString, ControllerData> m_controllerIdMap;

   146     QHash<QString, CodecData>  m_audioCodeclist;

   147     QList<int> m_supportedSampleRates;    

   148 };

   149 

   150 #endif // S60AUDIOCAPTURESESSION_H