2 Copyright (C) 2006, 2013 Paul Davis
3 Copyright (C) 2013, 2014 Robin Gareus <robin@gareus.org>
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published by the Free
7 Software Foundation; either version 2 of the License, or (at your option)
10 This program is distributed in the hope that it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 You should have received a copy of the GNU General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_delayline_h__
21 #define __ardour_delayline_h__
23 #include "ardour/types.h"
24 #include "ardour/processor.h"
32 /** Meters peaks on the input and stores them for access.
34 class LIBARDOUR_API DelayLine : public Processor {
37 DelayLine (Session& s, const std::string& name);
40 bool display_to_user() const { return false; }
42 void run (BufferSet&, framepos_t, framepos_t, pframes_t, bool);
43 void set_delay(framecnt_t signal_delay);
44 framecnt_t get_delay() { return _pending_delay; }
46 bool configure_io (ChanCount in, ChanCount out);
47 bool can_support_io_configuration (const ChanCount& in, ChanCount& out);
50 void realtime_handle_transport_stopped () { flush(); }
51 void realtime_locate () { flush(); }
52 void monitoring_changed() { flush(); }
54 XMLNode& state (bool full);
58 framecnt_t _delay, _pending_delay;
59 framecnt_t _bsiz, _pending_bsiz;
60 frameoffset_t _roff, _woff;
61 boost::shared_ptr<Sample> _buf;
62 boost::shared_ptr<Sample> _pending_buf;
63 boost::shared_ptr<MidiBuffer> _midi_buf;
69 #endif // __ardour_meter_h__