1 files changed, 138 insertions, 0 deletions
diff --git a/tools/grab-async.c b/tools/grab-async.c
new file mode 100644
index 0000000..6132829
--- /dev/null
+++ b/tools/grab-async.c
@@ -0,0 +1,138 @@
+/* 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"
+
+static UcaCamera *camera = NULL;
+
+typedef struct {
+    guint roi_width;
+    guint roi_height;
+    guint counter;
+} CallbackData;
+
+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
+grab_callback(gpointer data, gpointer user_data)
+{
+    CallbackData *cbd = (CallbackData *) user_data;
+    gchar *filename = g_strdup_printf("frame-%04i.raw", cbd->counter++);
+    FILE *fp = fopen(filename, "wb");
+
+    fwrite(data, sizeof(guint16), cbd->roi_width * cbd->roi_height, fp);
+    g_print(".");
+    fclose(fp);
+    g_free(filename);
+}
+
+static void
+print_usage (void)
+{
+    GList *types;
+    UcaPluginManager *manager;
+
+    manager = uca_plugin_manager_new ();
+    g_print ("Usage: benchmark [ ");
+    types = uca_plugin_manager_get_available_cameras (manager);
+
+    if (types == NULL) {
+        g_print ("] -- no camera plugin found\n");
+        return;
+    }
+
+    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_print ("%s ]\n", name);
+        else
+            g_print ("%s, ", name);
+    }
+}
+
+int
+main(int argc, char *argv[])
+{
+    CallbackData cbd;
+    guint sensor_width, sensor_height;
+    gchar *name;
+    UcaPluginManager *manager;
+    GError *error = NULL;
+    (void) signal(SIGINT, sigint_handler);
+
+    g_type_init();
+
+    if (argc < 2) {
+        print_usage();
+        return 1;
+    }
+
+    manager = uca_plugin_manager_new ();
+    camera = uca_plugin_manager_new_camera (manager, argv[1], &error);
+
+    if (camera == NULL) {
+        g_print("Error during initialization: %s\n", error->message);
+        return 1;
+    }
+
+    g_object_get(G_OBJECT(camera),
+            "name", &name,
+            "sensor-width", &sensor_width,
+            "sensor-height", &sensor_height,
+            NULL);
+
+    g_object_set(G_OBJECT(camera),
+            "roi-x0", 0,
+            "roi-y0", 0,
+            "roi-width", sensor_width,
+            "roi-height", sensor_height,
+            "transfer-asynchronously", TRUE,
+            NULL);
+
+    g_object_get(G_OBJECT(camera),
+            "roi-width", &cbd.roi_width,
+            "roi-height", &cbd.roi_height,
+            NULL);
+
+    g_print("Camera: %s\n", name);
+    g_free(name);
+
+    g_print("Start asynchronous recording\n");
+    cbd.counter = 0;
+    uca_camera_set_grab_func(camera, grab_callback, &cbd);
+    uca_camera_start_recording(camera, &error);
+    g_assert_no_error(error);
+    g_usleep(2 * G_USEC_PER_SEC);
+
+    g_print(" done\n");
+    uca_camera_stop_recording(camera, NULL);
+    g_object_unref(camera);
+
+    return error != NULL ? 1 : 0;
+}