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-rw-r--r--tests/examples/v4l2/probe.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/tests/examples/v4l2/probe.c b/tests/examples/v4l2/probe.c
new file mode 100644
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--- /dev/null
+++ b/tests/examples/v4l2/probe.c
@@ -0,0 +1,85 @@
+/* GStreamer
+ * Copyright (C) 2009 Filippo Argiolas <filippo.argiolas@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <stdlib.h>
+#include <gst/gst.h>
+#include <gst/interfaces/propertyprobe.h>
+
+int
+main (int argc, char *argv[])
+{
+ GstElement *src, *sink;
+ GstElement *bin;
+ GstPropertyProbe *probe = NULL;
+ const GParamSpec *pspec = NULL;
+ GValueArray *array = NULL;
+ gint i, ret;
+ GValue *value;
+ const gchar *device;
+ gchar *name;
+ guint flags;
+
+ gst_init (&argc, &argv);
+
+ bin = gst_pipeline_new ("pipeline");
+ g_assert (bin);
+
+ src = gst_element_factory_make ("v4l2src", "v4l2_source");
+ g_assert (src);
+ sink = gst_element_factory_make ("fakesink", "fake_sink");
+ g_assert (sink);
+
+ /* add objects to the main pipeline */
+ gst_bin_add_many (GST_BIN (bin), src, sink, NULL);
+ /* link the elements */
+ gst_element_link_many (src, sink, NULL);
+
+ /* probe devices */
+ g_print ("Probing devices with propertyprobe...\n");
+ probe = GST_PROPERTY_PROBE (src);
+ pspec = gst_property_probe_get_property (probe, "device");
+ array = gst_property_probe_probe_and_get_values (probe, pspec);
+
+ if (!array) {
+ g_print ("No device found\n");
+ exit (1);
+ }
+
+ for (i = 0; i < array->n_values; i++) {
+ value = g_value_array_get_nth (array, i);
+ device = g_value_get_string (value);
+ g_print ("Device: %s\n", device);
+ g_object_set_property (G_OBJECT (src), "device", value);
+ gst_element_set_state (bin, GST_STATE_READY);
+ ret = gst_element_get_state (bin, NULL, NULL, 10 * GST_SECOND);
+ if (ret != GST_STATE_CHANGE_SUCCESS) {
+ g_print ("Couldn't set STATE_READY\n");
+ continue;
+ }
+ g_object_get (G_OBJECT (src), "device-name", &name, NULL);
+ g_print ("Name: %s\n", name);
+ g_free (name);
+ g_object_get (G_OBJECT (src), "flags", &flags, NULL);
+ g_print ("Flags: 0x%08X\n", flags);
+ gst_element_set_state (bin, GST_STATE_NULL);
+ g_print ("\n");
+ }
+
+ exit (0);
+}