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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/* -*- 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 SV_DENSE_TIME_VALUE_MODEL_H
#define SV_DENSE_TIME_VALUE_MODEL_H
#include <QObject>
#include "Model.h"
namespace sv {
/**
* Base class for models containing dense two-dimensional data (value
* against time). For example, audio waveform data. Other time-value
* plot data, especially if editable, will normally go into a
* SparseTimeValueModel instead even if regularly sampled.
*/
class DenseTimeValueModel : public Model
{
Q_OBJECT
public:
DenseTimeValueModel() { }
virtual ~DenseTimeValueModel() { }
/**
* Return the minimum possible value found in this model type.
* (That is, the minimum that would be valid, not the minimum
* actually found in a particular model).
*/
virtual float getValueMinimum() const = 0;
/**
* Return the minimum possible value found in this model type.
* (That is, the minimum that would be valid, not the minimum
* actually found in a particular model).
*/
virtual float getValueMaximum() const = 0;
/**
* Obtain the name of the unit of the values found in this model
* type, if any.
*/
virtual QString getValueUnit() const = 0;
/**
* Return the number of distinct channels for this model.
*/
virtual int getChannelCount() const = 0;
/**
* Get the specified set of samples from the given channel of the
* model in single-precision floating-point format. Returned
* vector may have fewer samples than requested, if the end of
* file was reached.
*
* If the channel is given as -1, mix all available channels and
* return the result.
*/
virtual floatvec_t getData(int channel, sv_frame_t start, sv_frame_t count)
const = 0;
/**
* Get the specified set of samples from given contiguous range of
* channels of the model in single-precision floating-point
* format. Returned vector may have fewer samples than requested,
* if the end of file was reached.
*/
virtual std::vector<floatvec_t> getMultiChannelData(int fromchannel,
int tochannel,
sv_frame_t start,
sv_frame_t count)
const = 0;
bool canPlay() const override { return true; }
QString getDefaultPlayClipId() const override { return ""; }
QVector<QString>
getStringExportHeaders(DataExportOptions options) const override;
QVector<QVector<QString>>
toStringExportRows(DataExportOptions options,
sv_frame_t startFrame,
sv_frame_t duration) const override;
QString getTypeName() const override { return tr("Dense Time-Value"); }
};
} // end namespace sv
#endif
|
