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/*
* 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;
}
fprintf(stdout, "Compatible Layout:\n\ndistance = %.3f", 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;
}
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