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    41 

    42 #ifndef V4LRADIOCONTROL_H

    43 #define V4LRADIOCONTROL_H

    44 

    45 #include <QtCore/qobject.h>

    46 #include <QtCore/qtimer.h>

    47 

    48 #include <qradiotunercontrol.h>

    49 

    50 #include <QtDBus/QtDBus>

    51 #include <gst/gst.h>

    52 

    53 #include <alsa/asoundlib.h>

    54 

    55 QTM_USE_NAMESPACE

    56 

    57 class V4LRadioService;

    58 

    59 class V4LRadioControl : public QRadioTunerControl

    60 {

    61     Q_OBJECT

    62 public:

    63     V4LRadioControl(QObject *parent = 0);

    64     ~V4LRadioControl();

    65 

    66     bool isAvailable() const;

    67     QtMedia::AvailabilityError availabilityError() const;

    68 

    69     QRadioTuner::State state() const;

    70 

    71     QRadioTuner::Band band() const;

    72     void setBand(QRadioTuner::Band b);

    73     bool isBandSupported(QRadioTuner::Band b) const;

    74 

    75     int frequency() const;

    76     int frequencyStep(QRadioTuner::Band b) const;

    77     QPair<int,int> frequencyRange(QRadioTuner::Band b) const;

    78     void setFrequency(int frequency);

    79 

    80     bool isStereo() const;

    81     QRadioTuner::StereoMode stereoMode() const;

    82     void setStereoMode(QRadioTuner::StereoMode mode);

    83 

    84     int signalStrength() const;

    85 

    86     int volume() const;

    87     void setVolume(int volume);

    88 

    89     bool isMuted() const;

    90     void setMuted(bool muted);

    91 

    92     bool isSearching() const;

    93     void cancelSearch();

    94 

    95     void searchForward();

    96     void searchBackward();

    97 

    98     void start();

    99     void stop();

   100 

   101     QRadioTuner::Error error() const;

   102     QString errorString() const;

   103 

   104 private slots:

   105     void search();

   106     void enableFMRX();

   107 

   108 private:

   109     bool initRadio();

   110     void setupHeadPhone();

   111     bool createGstPipeline();

   112     void callAmixer(const QString& target, const QString& value);

   113     int getEnumItemIndex(snd_ctl_t *handle, snd_ctl_elem_info_t *info, const  QString &value);

   114     int vol(snd_hctl_elem_t *elem) const;

   115 

   116 private:

   117     int fd;

   118 

   119     bool m_error;

   120     bool muted;

   121     bool stereo;

   122     bool low;

   123     bool available;

   124     int  tuners;

   125     int  step;

   126     int  sig;

   127     bool scanning;

   128     bool forward;

   129     QTimer* timer;

   130     QTimer* tickTimer;

   131     QRadioTuner::Band   currentBand;

   132     qint64 freqMin;

   133     qint64 freqMax;

   134     qint64 currentFreq;

   135 

   136     GstElement *pipeline;

   137 

   138     QDBusInterface* FMRXEnablerIFace;

   139 };

   140 

   141 #endif