svapp
1.9
|
00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ 00002 00003 /* 00004 Sonic Visualiser 00005 An audio file viewer and annotation editor. 00006 Centre for Digital Music, Queen Mary, University of London. 00007 This file copyright 2006 Chris Cannam. 00008 00009 This program is free software; you can redistribute it and/or 00010 modify it under the terms of the GNU General Public License as 00011 published by the Free Software Foundation; either version 2 of the 00012 License, or (at your option) any later version. See the file 00013 COPYING included with this distribution for more information. 00014 */ 00015 00016 #ifndef _AUDIO_JACK_TARGET_H_ 00017 #define _AUDIO_JACK_TARGET_H_ 00018 00019 #ifdef HAVE_JACK 00020 00021 #include <jack/jack.h> 00022 #include <vector> 00023 00024 #include "AudioCallbackPlayTarget.h" 00025 00026 #include <QMutex> 00027 00028 class AudioCallbackPlaySource; 00029 00030 class AudioJACKTarget : public AudioCallbackPlayTarget 00031 { 00032 Q_OBJECT 00033 00034 public: 00035 AudioJACKTarget(AudioCallbackPlaySource *source); 00036 virtual ~AudioJACKTarget(); 00037 00038 virtual void shutdown(); 00039 00040 virtual bool isOK() const; 00041 00042 virtual double getCurrentTime() const; 00043 00044 public slots: 00045 virtual void sourceModelReplaced(); 00046 00047 protected: 00048 int process(jack_nframes_t nframes); 00049 int xrun(); 00050 00051 static int processStatic(jack_nframes_t, void *); 00052 static int xrunStatic(void *); 00053 00054 jack_client_t *m_client; 00055 std::vector<jack_port_t *> m_outputs; 00056 jack_nframes_t m_bufferSize; 00057 jack_nframes_t m_sampleRate; 00058 QMutex m_mutex; 00059 bool m_done; 00060 }; 00061 00062 #endif /* HAVE_JACK */ 00063 00064 #endif 00065