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    41 

    42 #ifndef S60AUDIOCAPTURESESSION_H

    43 #define S60AUDIOCAPTURESESSION_H

    44 

    45 #include <QFile>

    46 #include <QUrl>

    47 

    48 #include "s60audioencodercontrol.h"

    49 #include "s60audioendpointselector.h"

    50 #include "s60audiomediarecordercontrol.h"

    51 

    52 #include <QAudioFormat>

    53 

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

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

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

    57 #include <MdaAudioSampleEditor.h>

    58 

    59 struct ItemData

    60 {

    61 	int controllerUid;

    62 	int destinationFormatUid;

    63 	QString destinationFormatDescription;

    64 };

    65 

    66 

    67 class S60AudioCaptureSession : public QObject, public MMdaObjectStateChangeObserver

    68 {

    69     Q_OBJECT

    70 

    71 public:

    72     S60AudioCaptureSession(QObject *parent = 0);

    73     ~S60AudioCaptureSession();

    74 

    75     QAudioFormat format() const;

    76     bool isFormatSupported(const QAudioFormat &format) const;

    77     bool setFormat(const QAudioFormat &format);

    78     QStringList supportedAudioCodecs() const;

    79     QString codecDescription(const QString &codecName);

    80     bool setAudioCodec(const QString &codecName);

    81     QString audioCodec() const;

    82 

    83     QUrl outputLocation() const;

    84     bool setOutputLocation(const QUrl& sink);

    85     qint64 position() const;

    86     int state() const;

    87     void record();

    88     void pause();

    89     void stop();

    90 

    91 public slots:

    92     void setCaptureDevice(const QString &deviceName);

    93 

    94 signals:

    95     void stateChanged(QMediaRecorder::State state);

    96     void positionChanged(qint64 position);

    97 

    98 private slots:

    99     void stateChanged(QAudio::State state);

   100     void notify();

   101 

   102 private:

   103     enum TStatus

   104     {

   105         ENotReady,

   106         EOpen

   107     };

   108     

   109     void MoscoStateChangeEvent(CBase* aObject, TInt aPreviousState,

   110             TInt aCurrentState, TInt aErrorCode);

   111     void MoscoStateChangeEventL(CBase* aObject, TInt aPreviousState,

   112             TInt aCurrentState, TInt aErrorCode);

   113     

   114     void fetchAudioCodecsL();

   115 

   116     

   117     QString m_captureDevice;

   118     QUrl m_sink;

   119     QMediaRecorder::State m_state;

   120     

   121     CMdaAudioRecorderUtility *m_recorderUtility;

   122     QAudioFormat m_format;

   123     qint64 m_position;

   124     bool wavFile;

   125     

   126     QHash<QString, ItemData> m_controllerIdMap;

   127     

   128     // WAV header stuff

   129 

   130     struct chunk

   131     {

   132         char        id[4];

   133         quint32     size;

   134     };

   135 

   136     struct RIFFHeader

   137     {

   138         chunk       descriptor;

   139         char        type[4];

   140     };

   141 

   142     struct WAVEHeader

   143     {

   144         chunk       descriptor;

   145         quint16     audioFormat;        // PCM = 1

   146         quint16     numChannels;

   147         quint32     sampleRate;

   148         quint32     byteRate;

   149         quint16     blockAlign;

   150         quint16     bitsPerSample;

   151     };

   152 

   153     struct DATAHeader

   154     {

   155         chunk       descriptor;

   156         quint8      data[4];

   157     };

   158 

   159     struct CombinedHeader

   160     {

   161         RIFFHeader  riff;

   162         WAVEHeader  wave;

   163         DATAHeader  data;

   164     };

   165 

   166     CombinedHeader      header;

   167 };

   168 

   169 #endif // S60AUDIOCAPTURESESSION_H