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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/* 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-plugin-manager.h"
#include "uca-camera.h"
#include "ring-buffer.h"
typedef struct {
gint n_frames;
gdouble duration;
} Options;
static gchar *
get_camera_list (void)
{
GList *types;
GString *str;
UcaPluginManager *manager;
manager = uca_plugin_manager_new ();
types = uca_plugin_manager_get_available_cameras (manager);
str = g_string_new ("[ ");
if (types != NULL) {
for (GList *it = g_list_first (types); it != NULL; it = g_list_next (it)) {
gchar *name = (gchar *) it->data;
if (g_list_next (it) == NULL)
g_string_append_printf (str, "%s ]", name);
else
g_string_append_printf (str, "%s, ", name);
}
}
else {
g_string_append (str, "]");
}
g_object_unref (manager);
return g_string_free (str, FALSE);
}
static void
store_frames (RingBuffer *buffer)
{
guint n_frames;
gsize size;
size = ring_buffer_get_block_size (buffer);
n_frames = ring_buffer_get_num_blocks (buffer);
for (gint i = 0; i < n_frames; i++) {
FILE *fp;
gchar *filename;
gpointer data;
filename = g_strdup_printf ("frame-%08i.raw", i);
fp = fopen(filename, "wb");
data = ring_buffer_get_pointer (buffer, i);
fwrite (data, size, 1, fp);
fclose (fp);
g_free (filename);
}
}
static GError *
record_frames (UcaCamera *camera, Options *opts)
{
guint roi_width;
guint roi_height;
guint bits;
guint pixel_size;
gsize size;
gint n_frames;
guint n_allocated;
GTimer *timer;
RingBuffer *buffer;
GError *error = NULL;
g_object_get (G_OBJECT (camera),
"roi-width", &roi_width,
"roi-height", &roi_height,
"sensor-bitdepth", &bits,
NULL);
pixel_size = bits == 8 ? 1 : 2;
size = roi_width * roi_height * pixel_size;
n_allocated = opts->n_frames > 0 ? opts->n_frames : 256;
buffer = ring_buffer_new (size, n_allocated);
timer = g_timer_new();
g_print("Start recording: %ix%i at %i bits/pixel\n",
roi_width, roi_height, bits);
uca_camera_start_recording(camera, &error);
if (error != NULL)
return error;
n_frames = 0;
g_timer_start(timer);
while (n_frames < opts->n_frames || g_timer_elapsed (timer, NULL) < opts->duration) {
uca_camera_grab (camera, ring_buffer_get_current_pointer (buffer), &error);
ring_buffer_proceed (buffer);
if (error != NULL)
return error;
n_frames++;
}
g_print ("Stop recording: %3.5f frames/s\n",
n_frames / g_timer_elapsed (timer, NULL));
uca_camera_stop_recording (camera, &error);
store_frames (buffer);
ring_buffer_free (buffer);
g_timer_destroy (timer);
return error;
}
int
main (int argc, char *argv[])
{
GOptionContext *context;
UcaPluginManager *manager;
UcaCamera *camera;
gchar *cam_list;
GError *error = NULL;
static Options opts = {
.n_frames = -1,
.duration = -1.0
};
static GOptionEntry entries[] = {
{ "num-frames", 'n', 0, G_OPTION_ARG_INT, &opts.n_frames, "Number of frames to acquire", "N" },
{ "duration", 'd', 0, G_OPTION_ARG_DOUBLE, &opts.duration, "Duration in seconds", NULL },
{ NULL }
};
g_type_init();
cam_list = get_camera_list ();
context = g_option_context_new (cam_list);
g_option_context_add_main_entries (context, entries, NULL);
g_free (cam_list);
if (!g_option_context_parse (context, &argc, &argv, &error)) {
g_print ("Failed parsing arguments: %s\n", error->message);
exit (1);
}
if (argc < 2) {
g_print ("%s\n", g_option_context_get_help (context, TRUE, NULL));
exit (0);
}
manager = uca_plugin_manager_new ();
camera = uca_plugin_manager_get_camera (manager, argv[1], &error, NULL);
if (camera == NULL) {
g_print ("Error during initialization: %s\n", error->message);
exit (1);
}
error = record_frames (camera, &opts);
if (error != NULL)
g_print ("Error: %s\n", error->message);
g_object_unref (camera);
return error != NULL ? 1 : 0;
}
|
