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/* Copyright (C) 2011, 2012 Matthias Vogelgesang <matthias.vogelgesang@kit.edu>
(Karlsruhe Institute of Technology)
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version.
This library 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 Lesser General Public License for more
details.
You should have received a copy of the GNU Lesser General Public License along
with this library; if not, write to the Free Software Foundation, Inc., 51
Franklin St, Fifth Floor, Boston, MA 02110, USA */
#include <glib-object.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include "uca-camera.h"
static UcaCamera *camera = NULL;
static void
sigint_handler(int signal)
{
printf ("Closing down libuca\n");
uca_camera_stop_recording (camera, NULL);
g_object_unref (camera);
exit (signal);
}
static void
print_usage (void)
{
gchar **types;
g_print ("Usage: benchmark (");
types = uca_camera_get_types ();
for (guint i = 0; types[i] != NULL; i++) {
if (types[i+1] == NULL)
g_print ("%s)", types[i]);
else
g_print ("%s | ", types[i]);
}
g_print ("\n");
g_strfreev (types);
}
static void
benchmark (UcaCamera *camera)
{
const guint n_runs = 3;
const guint n_frames = 100;
guint sensor_width;
guint sensor_height;
guint roi_width;
guint roi_height;
guint bits;
guint n_bytes;
gdouble total_time = 0.0;
gdouble exposure = 0.001;
gpointer buffer;
GTimer *timer;
GError *error = NULL;
g_object_set (G_OBJECT (camera),
"exposure-time", exposure,
NULL);
g_object_get (G_OBJECT (camera),
"sensor-width", &sensor_width,
"sensor-height", &sensor_height,
"sensor-bitdepth", &bits,
"roi-width", &roi_width,
"roi-height", &roi_height,
"exposure-time", &exposure,
NULL);
g_print ("# --- General information\n");
g_print ("# Sensor size: %ix%i\n", sensor_width, sensor_height);
g_print ("# ROI size: %ix%i\n", roi_width, roi_height);
g_print ("# Exposure time: %fs\n", exposure);
g_print ("# --- Synchronous Benchmark\n");
g_print ("# %-10s%-10s%-16s%-16s\n", "n_frames", "n_runs", "frames/s", "MiB/s");
g_print (" %-10i%-10i", n_frames, n_runs);
n_bytes = bits > 8 ? 2 : 1;
buffer = g_malloc0(roi_width * roi_height * n_bytes);
timer = g_timer_new ();
uca_camera_start_recording (camera, &error);
if (error == NULL) {
gdouble fps;
gdouble bandwidth;
for (guint run = 0; run < n_runs; run++) {
g_timer_start (timer);
for (guint i = 0; i < n_frames; i++)
uca_camera_grab(camera, &buffer, &error);
g_timer_stop (timer);
total_time += g_timer_elapsed (timer, NULL);
}
uca_camera_stop_recording (camera, &error);
fps = n_runs * n_frames / total_time;
bandwidth = roi_width * roi_height * n_bytes * fps / 1024 / 1024;
g_print ("%-16.2f%-16.2f\n", fps, bandwidth);
}
else
g_print ("%s\n", error->message);
g_timer_destroy (timer);
g_free (buffer);
}
int
main (int argc, char *argv[])
{
GError *error = NULL;
(void) signal (SIGINT, sigint_handler);
if (argc < 2) {
print_usage();
return 1;
}
g_type_init();
camera = uca_camera_new(argv[1], &error);
if (camera == NULL) {
g_print ("Error during initialization: %s\n", error->message);
return 1;
}
benchmark (camera);
g_object_unref (camera);
return 0;
}
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