blob: b6b9e0136c803308d05991db4d8a88fd91abde82 (
plain)
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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
#ifndef AUDIOGRAPHER_TESTS_UTILS_H
#define AUDIOGRAPHER_TESTS_UTILS_H
// Includes we want almost always
#include <cppunit/extensions/HelperMacros.h>
#include <boost/shared_ptr.hpp>
// includes used in this file
#include "audiographer/sink.h"
#include "audiographer/exception.h"
#include <vector>
#include <list>
#include <cstring>
#include <cstdlib>
#include <ctime>
using AudioGrapher::framecnt_t;
struct TestUtils
{
template<typename T>
static bool array_equals (T const * a, T const * b, framecnt_t frames)
{
for (framecnt_t i = 0; i < frames; ++i) {
if (a[i] != b[i]) {
return false;
}
}
return true;
}
template<typename T>
static bool array_filled (T const * array, framecnt_t frames)
{
for (framecnt_t i = 0; i < frames; ++i) {
if (array[i] == static_cast<T> (0.0)) {
return false;
}
}
return true;
}
/// Generate random data, all samples guaranteed not to be 0.0, 1.0 or -1.0
static float * init_random_data (framecnt_t frames, float range = 1.0)
{
unsigned int const granularity = 4096;
float * data = new float[frames];
srand (std::time (NULL));
for (framecnt_t i = 0; i < frames; ++i) {
do {
int biased_int = (rand() % granularity) - (granularity / 2);
data[i] = (range * biased_int) / granularity;
} while (data[i] == 0.0 || data[i] == 1.0 || data[i] == -1.0);
}
return data;
}
};
template<typename T>
class VectorSink : public AudioGrapher::Sink<T>
{
public:
virtual void process (AudioGrapher::ProcessContext<T> const & c)
{
data.resize (c.frames());
memcpy (&data[0], c.data(), c.frames() * sizeof(T));
}
void process (AudioGrapher::ProcessContext<T> & c) { AudioGrapher::Sink<T>::process (c); }
using AudioGrapher::Sink<T>::process;
std::vector<T> const & get_data() const { return data; }
T const * get_array() const { return &data[0]; }
void reset() { data.clear(); }
protected:
std::vector<T> data;
};
template<typename T>
class AppendingVectorSink : public VectorSink<T>
{
public:
AppendingVectorSink() { reset (); }
void process (AudioGrapher::ProcessContext<T> const & c)
{
std::vector<T> & data (VectorSink<T>::data);
data.resize (total_frames + c.frames());
memcpy (&data[total_frames], c.data(), c.frames() * sizeof(T));
total_frames += c.frames();
}
using AudioGrapher::Sink<T>::process;
void reset ()
{
total_frames = 0;
VectorSink<T>::reset();
}
private:
framecnt_t total_frames;
};
template<typename T>
class ThrowingSink : public AudioGrapher::Sink<T>
{
public:
void process (AudioGrapher::ProcessContext<T> const &)
{
throw AudioGrapher::Exception(*this, "ThrowingSink threw!");
}
using AudioGrapher::Sink<T>::process;
};
template<typename T>
class ProcessContextGrabber : public AudioGrapher::Sink<T>
{
public:
void process (AudioGrapher::ProcessContext<T> const & c)
{
contexts.push_back (c);
}
using AudioGrapher::Sink<T>::process;
typedef std::list<AudioGrapher::ProcessContext<T> > ContextList;
ContextList contexts;
};
#endif // AUDIOGRAPHER_TESTS_UTILS_H
|
