Chris@43: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@43: 
Chris@43: /*
Chris@43:     Sonic Visualiser
Chris@43:     An audio file viewer and annotation editor.
Chris@43:     Centre for Digital Music, Queen Mary, University of London.
Chris@43:     This file copyright 2006 Chris Cannam.
Chris@43:     
Chris@43:     This program is free software; you can redistribute it and/or
Chris@43:     modify it under the terms of the GNU General Public License as
Chris@43:     published by the Free Software Foundation; either version 2 of the
Chris@43:     License, or (at your option) any later version.  See the file
Chris@43:     COPYING included with this distribution for more information.
Chris@43: */
Chris@43: 
Chris@43: #ifndef _AUDIO_PORT_AUDIO_TARGET_H_
Chris@43: #define _AUDIO_PORT_AUDIO_TARGET_H_
Chris@43: 
Chris@114: #ifdef HAVE_PORTAUDIO_2_0
Chris@43: 
Chris@114: // This code requires PortAudio v19 -- it won't work with v18.
Chris@43: 
Chris@43: #include <portaudio.h>
Chris@43: 
Chris@114: #include <QObject>
Chris@114: 
Chris@43: #include "AudioCallbackPlayTarget.h"
Chris@43: 
Chris@43: class AudioCallbackPlaySource;
Chris@43: 
Chris@43: class AudioPortAudioTarget : public AudioCallbackPlayTarget
Chris@43: {
Chris@43:     Q_OBJECT
Chris@43: 
Chris@43: public:
Chris@43:     AudioPortAudioTarget(AudioCallbackPlaySource *source);
Chris@43:     virtual ~AudioPortAudioTarget();
Chris@43: 
Chris@70:     virtual void shutdown();
Chris@70: 
Chris@43:     virtual bool isOK() const;
Chris@43: 
Chris@91:     virtual double getCurrentTime() const;
Chris@91: 
Chris@43: public slots:
Chris@43:     virtual void sourceModelReplaced();
Chris@43: 
Chris@43: protected:
Chris@43:     int process(const void *input, void *output, unsigned long frames,
Chris@43:                 const PaStreamCallbackTimeInfo *timeInfo,
Chris@43:                 PaStreamCallbackFlags statusFlags);
Chris@43: 
Chris@43:     static int processStatic(const void *, void *, unsigned long,
Chris@43:                              const PaStreamCallbackTimeInfo *,
Chris@43:                              PaStreamCallbackFlags, void *);
Chris@43: 
Chris@43:     PaStream *m_stream;
Chris@43: 
Chris@43:     int m_bufferSize;
Chris@43:     int m_sampleRate;
Chris@43:     int m_latency;
Chris@182:     bool m_prioritySet;
Chris@70:     bool m_done;
Chris@43: };
Chris@43: 
Chris@43: #endif /* HAVE_PORTAUDIO */
Chris@43: 
Chris@43: #endif
Chris@43: