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
137
138
139
|
/*
* SOFA info utility for inspecting SOFA file metrics and determining HRTF
* utility compatible layouts.
*
* Copyright (C) 2018-2019 Christopher Fitzgerald
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Or visit: http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/
#include <stdio.h>
#include <memory>
#include <vector>
#include "sofa-support.h"
#include "mysofa.h"
#include "win_main_utf8.h"
using uint = unsigned int;
static void PrintSofaAttributes(const char *prefix, struct MYSOFA_ATTRIBUTE *attribute)
{
while(attribute)
{
fprintf(stdout, "%s.%s: %s\n", prefix, attribute->name, attribute->value);
attribute = attribute->next;
}
}
static void PrintSofaArray(const char *prefix, struct MYSOFA_ARRAY *array)
{
PrintSofaAttributes(prefix, array->attributes);
for(uint i{0u};i < array->elements;i++)
fprintf(stdout, "%s[%u]: %.6f\n", prefix, i, array->values[i]);
}
/* Attempts to produce a compatible layout. Most data sets tend to be
* uniform and have the same major axis as used by OpenAL Soft's HRTF model.
* This will remove outliers and produce a maximally dense layout when
* possible. Those sets that contain purely random measurements or use
* different major axes will fail.
*/
static void PrintCompatibleLayout(const uint m, const float *xyzs)
{
fputc('\n', stdout);
auto fds = GetCompatibleLayout(m, xyzs);
if(fds.empty())
{
fprintf(stdout, "No compatible field layouts in SOFA file.\n");
return;
}
uint used_elems{0};
for(size_t fi{0u};fi < fds.size();++fi)
{
for(uint ei{fds[fi].mEvStart};ei < fds[fi].mEvCount;++ei)
used_elems += fds[fi].mAzCounts[ei];
}
fprintf(stdout, "Compatible Layout (%u of %u measurements):\n\ndistance = %.3f", used_elems, m,
fds[0].mDistance);
for(size_t fi{1u};fi < fds.size();fi++)
fprintf(stdout, ", %.3f", fds[fi].mDistance);
fprintf(stdout, "\nazimuths = ");
for(size_t fi{0u};fi < fds.size();++fi)
{
for(uint ei{0u};ei < fds[fi].mEvStart;++ei)
fprintf(stdout, "%d%s", fds[fi].mAzCounts[fds[fi].mEvCount - 1 - ei], ", ");
for(uint ei{fds[fi].mEvStart};ei < fds[fi].mEvCount;++ei)
fprintf(stdout, "%d%s", fds[fi].mAzCounts[ei],
(ei < (fds[fi].mEvCount - 1)) ? ", " :
(fi < (fds.size() - 1)) ? ";\n " : "\n");
}
}
// Load and inspect the given SOFA file.
static void SofaInfo(const char *filename)
{
int err;
MySofaHrtfPtr sofa{mysofa_load(filename, &err)};
if(!sofa)
{
fprintf(stdout, "Error: Could not load source file '%s' (%s).\n", filename,
SofaErrorStr(err));
return;
}
/* NOTE: Some valid SOFA files are failing this check. */
err = mysofa_check(sofa.get());
if(err != MYSOFA_OK)
fprintf(stdout, "Warning: Supposedly malformed source file '%s' (%s).\n", filename,
SofaErrorStr(err));
mysofa_tocartesian(sofa.get());
PrintSofaAttributes("Info", sofa->attributes);
fprintf(stdout, "Measurements: %u\n", sofa->M);
fprintf(stdout, "Receivers: %u\n", sofa->R);
fprintf(stdout, "Emitters: %u\n", sofa->E);
fprintf(stdout, "Samples: %u\n", sofa->N);
PrintSofaArray("SampleRate", &sofa->DataSamplingRate);
PrintSofaArray("DataDelay", &sofa->DataDelay);
PrintCompatibleLayout(sofa->M, sofa->SourcePosition.values);
}
int main(int argc, char *argv[])
{
if(argc != 2)
{
fprintf(stdout, "Usage: %s <sofa-file>\n", argv[0]);
return 0;
}
SofaInfo(argv[1]);
return 0;
}
|
