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/*
Copyright (C) 2002 Paul Davis
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id: port.h 712 2006-07-28 01:08:57Z drobilla $
*/
#ifndef __ardour_audio_port_h__
#define __ardour_audio_port_h__
#include <sigc++/signal.h>
#include <pbd/failed_constructor.h>
#include <ardour/ardour.h>
#include <jack/jack.h>
#include <ardour/port.h>
#include <ardour/audio_buffer.h>
namespace ARDOUR {
class AudioEngine;
class AudioPort : public Port {
public:
virtual ~AudioPort() {
free (_port);
}
void cycle_start(nframes_t nframes) {
_buffer.set_data ((Sample*) jack_port_get_buffer (_port, nframes), nframes);
}
void cycle_end() {}
DataType type() const { return DataType(DataType::AUDIO); }
Buffer& get_buffer () {
return _buffer;
}
AudioBuffer& get_audio_buffer() {
return _buffer;
}
void reset_overs () {
_short_overs = 0;
_long_overs = 0;
_overlen = 0;
}
void reset_peak_meter () {
_peak = 0;
}
void reset_meters () {
reset_peak_meter ();
reset_overs ();
}
float peak_db() const { return _peak_db; }
jack_default_audio_sample_t peak() const { return _peak; }
uint32_t short_overs () const { return _short_overs; }
uint32_t long_overs () const { return _long_overs; }
static void set_short_over_length (nframes_t);
static void set_long_over_length (nframes_t);
protected:
friend class AudioEngine;
AudioPort (jack_port_t *port);
void reset ();
/* engine isn't supposed to access below here */
AudioBuffer _buffer;
nframes_t _overlen;
jack_default_audio_sample_t _peak;
float _peak_db;
uint32_t _short_overs;
uint32_t _long_overs;
static nframes_t _long_over_length;
static nframes_t _short_over_length;
};
} // namespace ARDOUR
#endif /* __ardour_audio_port_h__ */
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