Chris@476: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@476: 
Chris@476: /*
Chris@476:     Sonic Visualiser
Chris@476:     An audio file viewer and annotation editor.
Chris@476:     Centre for Digital Music, Queen Mary, University of London.
Chris@476:     
Chris@476:     This program is free software; you can redistribute it and/or
Chris@476:     modify it under the terms of the GNU General Public License as
Chris@476:     published by the Free Software Foundation; either version 2 of the
Chris@476:     License, or (at your option) any later version.  See the file
Chris@476:     COPYING included with this distribution for more information.
Chris@476: */
Chris@476: 
Chris@574: #ifndef SV_AUDIO_CALLBACK_RECORD_TARGET_H
Chris@574: #define SV_AUDIO_CALLBACK_RECORD_TARGET_H
Chris@574: 
Chris@574: #include "base/AudioRecordTarget.h"
Chris@476: 
Chris@476: #include <bqaudioio/ApplicationRecordTarget.h>
Chris@476: 
Chris@476: #include <string>
Chris@575: #include <atomic>
Chris@476: 
Chris@476: #include <QObject>
Chris@476: #include <QMutex>
Chris@476: 
Chris@476: #include "base/BaseTypes.h"
Chris@575: #include "base/RingBuffer.h"
Chris@476: 
Chris@476: class ViewManagerBase;
Chris@477: class WritableWaveFileModel;
Chris@476: 
Chris@574: class AudioCallbackRecordTarget : public QObject,
Chris@574:                                   public AudioRecordTarget,
Chris@574:                                   public breakfastquay::ApplicationRecordTarget
Chris@476: {
Chris@476:     Q_OBJECT
Chris@476: 
Chris@476: public:
Chris@574:     AudioCallbackRecordTarget(ViewManagerBase *, QString clientName);
Chris@574:     virtual ~AudioCallbackRecordTarget();
Chris@476: 
Chris@559:     virtual std::string getClientName() const override { return m_clientName; }
Chris@476:     
Chris@559:     virtual int getApplicationSampleRate() const override;
Chris@559:     virtual int getApplicationChannelCount() const override;
Chris@476: 
Chris@559:     virtual void setSystemRecordBlockSize(int) override;
Chris@559:     virtual void setSystemRecordSampleRate(int) override;
Chris@559:     virtual void setSystemRecordLatency(int) override;
Chris@559:     virtual void setSystemRecordChannelCount(int) override;
Chris@476: 
Chris@559:     virtual void putSamples(const float *const *samples, int nchannels, int nframes) override;
Chris@476:     
Chris@559:     virtual void setInputLevels(float peakLeft, float peakRight) override;
Chris@476: 
Chris@559:     virtual void audioProcessingOverload() override { }
Chris@476: 
Chris@508:     QString getRecordContainerFolder();
Chris@483:     QString getRecordFolder();
Chris@483:     
Chris@574:     virtual bool isRecording() const override { return m_recording; }
Chris@574:     virtual sv_frame_t getRecordDuration() const override { return m_frameCount; }
Chris@574: 
Chris@574:     virtual bool getInputLevels(float &left, float &right) override;
Chris@574: 
Chris@574:     WritableWaveFileModel *startRecording(); // caller takes ownership of model
Chris@476:     void stopRecording();
Chris@477: 
Chris@477: signals:
Chris@477:     void recordStatusChanged(bool recording);
Chris@485:     void recordDurationChanged(sv_frame_t, sv_samplerate_t); // emitted occasionally
Chris@497:     void recordCompleted();
Chris@477: 
Chris@477: protected slots:
Chris@477:     void modelAboutToBeDeleted();
Chris@575:     void updateModel();
Chris@476:     
Chris@476: private:
Chris@476:     ViewManagerBase *m_viewManager;
Chris@476:     std::string m_clientName;
Chris@575:     std::atomic_bool m_recording;
Chris@476:     sv_samplerate_t m_recordSampleRate;
Chris@546:     int m_recordChannelCount;
Chris@485:     sv_frame_t m_frameCount;
Chris@476:     QString m_audioFileName;
Chris@477:     WritableWaveFileModel *m_model;
Chris@575:     RingBuffer<float> **m_buffers;
Chris@575:     QMutex m_bufPtrMutex;
Chris@575:     int m_bufferCount;
Chris@574:     float m_inputLeft;
Chris@574:     float m_inputRight;
Chris@575: 
Chris@575:     void recreateBuffers();
Chris@476: };
Chris@476: 
Chris@476: #endif