Mercurial > hg > sonic-visualiser
view audioio/AudioPortAudioTarget.h @ 197:c08c312b2399
* Make RemoteFile far more pervasive, and use it for local files as well
so that we can handle both transparently. Make it shallow copy with
reference counting, so it can be used by value without having to worry
about the cache file lifetime. Use RemoteFile for MainWindow file-open
functions, etc
author | Chris Cannam |
---|---|
date | Thu, 18 Oct 2007 15:31:20 +0000 |
parents | 52409ab73526 |
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_PORT_AUDIO_TARGET_H_ #define _AUDIO_PORT_AUDIO_TARGET_H_ #ifdef HAVE_PORTAUDIO // This code can be compiled for either PortAudio v18 or v19. // PortAudio v19 is the default. If you want to use v18, define // the preprocessor symbol HAVE_PORTAUDIO_v18. #include <portaudio.h> #include <vector> #include "AudioCallbackPlayTarget.h" class AudioCallbackPlaySource; class AudioPortAudioTarget : public AudioCallbackPlayTarget { Q_OBJECT public: AudioPortAudioTarget(AudioCallbackPlaySource *source); virtual ~AudioPortAudioTarget(); virtual bool isOK() const; public slots: virtual void sourceModelReplaced(); protected: #ifdef HAVE_PORTAUDIO_V18 int process(void *input, void *output, unsigned long frames, PaTimestamp outTime); static int processStatic(void *, void *, unsigned long, PaTimestamp, void *); PortAudioStream *m_stream; #else int process(const void *input, void *output, unsigned long frames, const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags); static int processStatic(const void *, void *, unsigned long, const PaStreamCallbackTimeInfo *, PaStreamCallbackFlags, void *); PaStream *m_stream; #endif int m_bufferSize; int m_sampleRate; int m_latency; }; #endif /* HAVE_PORTAUDIO */ #endif