mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-30 12:10:37 +00:00
86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
|
/* 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 ("v4lsrc", "v4l_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);
|
||
|
|
}
|