comparison audio/AudioCallbackRecordTarget.h @ 574:b3c35447ef31 3.0-integration

Wire up record monitoring

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef SV_AUDIO_CALLBACK_RECORD_TARGET_H
+#define SV_AUDIO_CALLBACK_RECORD_TARGET_H
+
+#include "base/AudioRecordTarget.h"
+
+#include <bqaudioio/ApplicationRecordTarget.h>
+
+#include <string>
+
+#include <QObject>
+#include <QMutex>
+
+#include "base/BaseTypes.h"
+
+class ViewManagerBase;
+class WritableWaveFileModel;
+
+class AudioCallbackRecordTarget : public QObject,
+                                  public AudioRecordTarget,
+                                  public breakfastquay::ApplicationRecordTarget
+{
+    Q_OBJECT
+
+public:
+    AudioCallbackRecordTarget(ViewManagerBase *, QString clientName);
+    virtual ~AudioCallbackRecordTarget();
+
+    virtual std::string getClientName() const override { return m_clientName; }
+    
+    virtual int getApplicationSampleRate() const override;
+    virtual int getApplicationChannelCount() const override;
+
+    virtual void setSystemRecordBlockSize(int) override;
+    virtual void setSystemRecordSampleRate(int) override;
+    virtual void setSystemRecordLatency(int) override;
+    virtual void setSystemRecordChannelCount(int) override;
+
+    virtual void putSamples(const float *const *samples, int nchannels, int nframes) override;
+    
+    virtual void setInputLevels(float peakLeft, float peakRight) override;
+
+    virtual void audioProcessingOverload() override { }
+
+    QString getRecordContainerFolder();
+    QString getRecordFolder();
+    
+    virtual bool isRecording() const override { return m_recording; }
+    virtual sv_frame_t getRecordDuration() const override { return m_frameCount; }
+
+    virtual bool getInputLevels(float &left, float &right) override;
+
+    WritableWaveFileModel *startRecording(); // caller takes ownership of model
+    void stopRecording();
+
+signals:
+    void recordStatusChanged(bool recording);
+    void recordDurationChanged(sv_frame_t, sv_samplerate_t); // emitted occasionally
+    void recordCompleted();
+
+protected slots:
+    void modelAboutToBeDeleted();
+    
+private:
+    ViewManagerBase *m_viewManager;
+    std::string m_clientName;
+    bool m_recording;
+    sv_samplerate_t m_recordSampleRate;
+    int m_recordChannelCount;
+    sv_frame_t m_frameCount;
+    QString m_audioFileName;
+    WritableWaveFileModel *m_model;
+    float m_inputLeft;
+    float m_inputRight;
+    QMutex m_mutex;
+};
+
+#endif