66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
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#ifndef NOTIFICATIONAUDIO_H
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#define NOTIFICATIONAUDIO_H
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#include <QIODevice>
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#include <QBuffer>
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#include <QAudioDecoder>
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#include <QAudioDeviceInfo>
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#include <QAudioFormat>
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#include <QAudioOutput>
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#include <QFile>
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// Class for decode audio files like MP3 and push decoded audio data to QOutputDevice (like speaker) and also signal newData().
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// For decoding it uses QAudioDecoder which uses QAudioFormat for decode audio file for desire format, then put decoded data to buffer.
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// based on: https://github.com/Znurre/QtMixer
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class NotificationAudio : public QIODevice
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{
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Q_OBJECT
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public:
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NotificationAudio(QObject * parent=nullptr);
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bool isInitialized() const { return m_init; }
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enum State { Playing, Stopped };
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bool atEnd() const override;
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public slots:
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void init(const QAudioDeviceInfo &device, const QAudioFormat& format);
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void play(const QString &filePath);
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void stop();
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protected:
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qint64 readData(char* data, qint64 maxlen) override;
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qint64 writeData(const char* data, qint64 len) override;
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private:
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QFile *m_file;
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State m_state;
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QBuffer m_input;
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QBuffer m_output;
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QByteArray m_data;
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QAudioFormat m_format;
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QAudioDeviceInfo m_device;
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QAudioDecoder * m_decoder;
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QAudioOutput * m_audio;
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bool m_init;
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bool m_isDecodingFinished;
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void playFile(QFile *file);
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void resetBuffers();
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private slots:
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void bufferReady();
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void finished();
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signals:
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void initialized();
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void stateChanged(NotificationAudio::State state);
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void newData(const QByteArray& data);
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};
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#endif // NOTIFICATIONAUDIO_H
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