45 lines
1 KiB
C++
45 lines
1 KiB
C++
#ifndef AUDIODECODER_H
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#define AUDIODECODER_H
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#include <QIODevice>
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#include <QAudioFormat>
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#include <QAudioDecoder>
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class AudioDecoder : public QIODevice
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{
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Q_OBJECT
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public:
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AudioDecoder(const QAudioFormat &format, qint64 durationUs, int sampleRate, QObject *parent);
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AudioDecoder(const QAudioFormat &format, QObject *parent);
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~AudioDecoder();
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void start();
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void stop();
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qint64 readData(char *data, qint64 maxlen);
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qint64 writeData(const char *data, qint64 len);
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qint64 bytesAvailable() const;
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void loadMedia(QString file);
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void setPos(qint64 pos);
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private:
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void generateData(const QAudioFormat &format, qint64 durationUs, int sampleRate);
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qint64 m_pos;
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QByteArray m_buffer;
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QAudioDecoder *m_decoder;
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private slots:
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void readBuffer();
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void errorDecoding(QAudioDecoder::Error msg);
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void decoderFinished();
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void trackTimeChanged(qint64 dur);
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signals:
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void totalTimeChanged(qint64 dur);
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void fileLoaded(QString file);
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};
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#endif // AUDIODECODER_H
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