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    41 

    42 #ifndef QMEDIARECORDER_H

    43 #define QMEDIARECORDER_H

    44 

    45 #include <qmediaobject.h>

    46 #include <qmediaserviceprovider.h>

    47 #include <qmediaencodersettings.h>

    48 #include <qmediabindableinterface.h>

    49 

    50 #include <QtCore/qpair.h>

    51 

    52 QT_BEGIN_NAMESPACE

    53 class QUrl;

    54 class QSize;

    55 class QAudioFormat;

    56 QT_END_NAMESPACE

    57 

    58 QT_BEGIN_NAMESPACE

    59 

    60 class QMediaRecorderService;

    61 class QAudioEncoderSettings;

    62 class QVideoEncoderSettings;

    63 

    64 class QMediaRecorderPrivate;

    65 class Q_MULTIMEDIA_EXPORT QMediaRecorder : public QObject, public QMediaBindableInterface

    66 {

    67     Q_OBJECT

    68     Q_INTERFACES(QMediaBindableInterface)

    69     Q_ENUMS(State)

    70     Q_ENUMS(Error)

    71     Q_PROPERTY(qint64 duration READ duration NOTIFY durationChanged)

    72     Q_PROPERTY(QUrl outputLocation READ outputLocation WRITE setOutputLocation)

    73     Q_PROPERTY(bool muted READ isMuted WRITE setMuted NOTIFY mutedChanged)

    74     Q_PROPERTY(bool metaDataAvailable READ isMetaDataAvailable NOTIFY metaDataAvailableChanged)

    75     Q_PROPERTY(bool metaDataWritable READ isMetaDataWritable NOTIFY metaDataWritableChanged)

    76 public:

    77 

    78     enum State

    79     {

    80         StoppedState,

    81         RecordingState,

    82         PausedState

    83     };

    84 

    85     enum Error

    86     {

    87         NoError,

    88         ResourceError,

    89         FormatError

    90     };

    91 

    92     QMediaRecorder(QMediaObject *mediaObject, QObject *parent = 0);

    93     ~QMediaRecorder();

    94 

    95     QMediaObject *mediaObject() const;

    96 

    97     bool isAvailable() const;

    98     QtMultimediaKit::AvailabilityError availabilityError() const;

    99 

   100     QUrl outputLocation() const;

   101     bool setOutputLocation(const QUrl &location);

   102 

   103     State state() const;

   104 

   105     Error error() const;

   106     QString errorString() const;

   107 

   108     qint64 duration() const;

   109 

   110     bool isMuted() const;

   111 

   112     QStringList supportedContainers() const;

   113     QString containerDescription(const QString &containerMimeType) const;

   114 

   115     QStringList supportedAudioCodecs() const;

   116     QString audioCodecDescription(const QString &codecName) const;

   117 

   118     QList<int> supportedAudioSampleRates(const QAudioEncoderSettings &settings = QAudioEncoderSettings(),

   119                                          bool *continuous = 0) const;

   120 

   121     QStringList supportedVideoCodecs() const;

   122     QString videoCodecDescription(const QString &codecName) const;

   123 

   124     QList<QSize> supportedResolutions(const QVideoEncoderSettings &settings = QVideoEncoderSettings(),

   125                                       bool *continuous = 0) const;

   126 

   127     QList<qreal> supportedFrameRates(const QVideoEncoderSettings &settings = QVideoEncoderSettings(),

   128                                      bool *continuous = 0) const;

   129 

   130     QAudioEncoderSettings audioSettings() const;

   131     QVideoEncoderSettings videoSettings() const;

   132     QString containerMimeType() const;

   133 

   134     void setEncodingSettings(const QAudioEncoderSettings &audioSettings,

   135                              const QVideoEncoderSettings &videoSettings = QVideoEncoderSettings(),

   136                              const QString &containerMimeType = QString());

   137 

   138 

   139     bool isMetaDataAvailable() const;

   140     bool isMetaDataWritable() const;

   141 

   142     QVariant metaData(QtMultimediaKit::MetaData key) const;

   143     void setMetaData(QtMultimediaKit::MetaData key, const QVariant &value);

   144     QList<QtMultimediaKit::MetaData> availableMetaData() const;

   145 

   146     QVariant extendedMetaData(const QString &key) const;

   147     void setExtendedMetaData(const QString &key, const QVariant &value);

   148     QStringList availableExtendedMetaData() const;

   149 

   150 public Q_SLOTS:

   151     void record();

   152     void pause();

   153     void stop();

   154     void setMuted(bool muted);

   155 

   156 Q_SIGNALS:

   157     void stateChanged(QMediaRecorder::State state);

   158     void durationChanged(qint64 duration);

   159     void mutedChanged(bool muted);

   160 

   161     void error(QMediaRecorder::Error error);

   162 

   163     void metaDataAvailableChanged(bool available);

   164     void metaDataWritableChanged(bool writable);

   165     void metaDataChanged();

   166 

   167 protected:

   168     bool setMediaObject(QMediaObject *object);

   169 

   170 private:

   171     QMediaRecorderPrivate *d_ptr;

   172     Q_DISABLE_COPY(QMediaRecorder)

   173     Q_DECLARE_PRIVATE(QMediaRecorder)

   174     Q_PRIVATE_SLOT(d_func(), void _q_stateChanged(QMediaRecorder::State))

   175     Q_PRIVATE_SLOT(d_func(), void _q_error(int, const QString &))

   176     Q_PRIVATE_SLOT(d_func(), void _q_serviceDestroyed())

   177     Q_PRIVATE_SLOT(d_func(), void _q_notify())

   178     Q_PRIVATE_SLOT(d_func(), void _q_updateNotifyInterval(int))

   179 };

   180 

   181 QT_END_NAMESPACE

   182 

   183 Q_DECLARE_METATYPE(QMediaRecorder::State)

   184 Q_DECLARE_METATYPE(QMediaRecorder::Error)

   185 

   186 #endif  // QMEDIARECORDER_H