1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/*
Copyright (C) 2008 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.
*/
#ifndef __ardour_audioanalyser_h__
#define __ardour_audioanalyser_h__
#include <vector>
#include <string>
#include <boost/utility.hpp>
#include <vamp-hostsdk/Plugin.h>
#include "ardour/libardour_visibility.h"
#include "ardour/types.h"
namespace ARDOUR {
class Readable;
class Session;
class LIBARDOUR_API AudioAnalyser : public boost::noncopyable {
public:
typedef Vamp::Plugin AnalysisPlugin;
typedef std::string AnalysisPluginKey;
AudioAnalyser (float sample_rate, AnalysisPluginKey key);
virtual ~AudioAnalyser();
/* analysis object should provide a run method
that accepts a path to write the results to (optionally empty)
a Readable* to read data from
and a reference to a type-specific container to return the
results.
*/
void reset ();
protected:
float sample_rate;
AnalysisPlugin* plugin;
AnalysisPluginKey plugin_key;
framecnt_t bufsize;
framecnt_t stepsize;
int initialize_plugin (AnalysisPluginKey name, float sample_rate);
int analyse (const std::string& path, Readable*, uint32_t channel);
/* instances of an analysis object will have this method called
whenever there are results to process. if out is non-null,
the data should be written to the stream it points to.
*/
virtual int use_features (Vamp::Plugin::FeatureSet&, std::ostream*) = 0;
};
} /* namespace */
#endif /* __ardour_audioanalyser_h__ */
|
