Mercurial > hg > sonic-visualiser
view audioio/AudioJACKTarget.h @ 146:d27f13651e67
* don't store fft values scaled by fftsize/2; that's a special requirement
for the spectrogram, and other applications will not expect it -- make the
spectrogram do that scaling itself
* add a higher-resolution memory cache (still polar, though) as an alternative
to the 16-bit compact cache
* don't use the memory cache if we want rectangular coords (unless the disc
cache is totally infeasible) as conversion slows it down anyway
* avoid redundant rectangular -> polar -> rectangular conversion when storing
values in a rectangular-mode disc cache
author | Chris Cannam |
---|---|
date | Fri, 01 Jun 2007 13:56:35 +0000 |
parents | fbd7a497fd89 |
children |
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/* -*- 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 file copyright 2006 Chris Cannam. 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 _AUDIO_JACK_TARGET_H_ #define _AUDIO_JACK_TARGET_H_ #ifdef HAVE_JACK #include <jack/jack.h> #include <vector> #include "AudioCallbackPlayTarget.h" #include <QMutex> class AudioCallbackPlaySource; class AudioJACKTarget : public AudioCallbackPlayTarget { Q_OBJECT public: AudioJACKTarget(AudioCallbackPlaySource *source); virtual ~AudioJACKTarget(); virtual bool isOK() const; public slots: virtual void sourceModelReplaced(); protected: int process(jack_nframes_t nframes); int xrun(); static int processStatic(jack_nframes_t, void *); static int xrunStatic(void *); jack_client_t *m_client; std::vector<jack_port_t *> m_outputs; jack_nframes_t m_bufferSize; jack_nframes_t m_sampleRate; QMutex m_mutex; }; #endif /* HAVE_JACK */ #endif