--- /dev/null
+/* GStreamer command line device monitor testing utility
+ * Copyright (C) 2014 Tim-Philipp Müller <tim@centricular.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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <locale.h>
+
+#include <gst/gst.h>
+#include <gst/gst-i18n-app.h>
+#include <gst/math-compat.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+GST_DEBUG_CATEGORY (devmon_debug);
+#define GST_CAT_DEFAULT devmon_debug
+
+typedef struct
+{
+ GMainLoop *loop;
+ GstDeviceMonitor *monitor;
+ guint bus_watch_id;
+} DevMonApp;
+
+static gboolean bus_msg_handler (GstBus * bus, GstMessage * msg, gpointer data);
+
+static void
+device_added (GstDevice * device)
+{
+ gchar *device_class, *caps_str, *name;
+ GstCaps *caps;
+ guint i, size = 0;
+
+ caps = gst_device_get_caps (device);
+ if (caps != NULL)
+ size = gst_caps_get_size (caps);
+
+ name = gst_device_get_display_name (device);
+ device_class = gst_device_get_device_class (device);
+
+ g_print ("\nDevice found:\n\n");
+ g_print ("\tname : %s\n", name);
+ g_print ("\tclass : %s\n", device_class);
+ for (i = 0; i < size; ++i) {
+ GstStructure *s = gst_caps_get_structure (caps, i);
+ caps_str = gst_structure_to_string (s);
+ g_print ("\t%s %s\n", (i == 0) ? "caps :" : " ", caps_str);
+ g_free (caps_str);
+ }
+
+ g_print ("\n");
+
+ g_free (name);
+ g_free (device_class);
+
+ if (caps != NULL)
+ gst_caps_unref (caps);
+}
+
+static void
+device_removed (GstDevice * device)
+{
+ gchar *name;
+
+ name = gst_device_get_display_name (device);
+
+ g_print ("Device removed:\n");
+ g_print ("\tname : %s\n", name);
+
+ g_free (name);
+}
+
+static gboolean
+bus_msg_handler (GstBus * bus, GstMessage * msg, gpointer user_data)
+{
+ GstDevice *device;
+
+ switch (GST_MESSAGE_TYPE (msg)) {
+ case GST_MESSAGE_DEVICE_ADDED:
+ gst_message_parse_device_added (msg, &device);
+ device_added (device);
+ break;
+ case GST_MESSAGE_DEVICE_REMOVED:
+ gst_message_parse_device_removed (msg, &device);
+ device_removed (device);
+ break;
+ default:
+ g_print ("%s message\n", GST_MESSAGE_TYPE_NAME (msg));
+ break;
+ }
+
+ return TRUE;
+}
+
+int
+main (int argc, char **argv)
+{
+ gboolean print_version = FALSE;
+ GError *err = NULL;
+ gchar **arg, **args = NULL;
+ gboolean follow = FALSE;
+ GOptionContext *ctx;
+ GOptionEntry options[] = {
+ {"version", 0, 0, G_OPTION_ARG_NONE, &print_version,
+ N_("Print version information and exit"), NULL},
+ {"follow", 'f', 0, G_OPTION_ARG_NONE, &follow,
+ N_("Don't exit after showing the initial device list, but wait "
+ "for devices to added/removed."), NULL},
+ {G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_STRING_ARRAY, &args, NULL},
+ {NULL}
+ };
+ GTimer *timer;
+ DevMonApp app;
+ GstBus *bus;
+ GList *devices;
+
+ setlocale (LC_ALL, "");
+
+#ifdef ENABLE_NLS
+ bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
+ bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+ textdomain (GETTEXT_PACKAGE);
+#endif
+
+ g_set_prgname ("gst-device-monitor-" GST_API_VERSION);
+
+ ctx = g_option_context_new ("[DEVICE_CLASSES[:FILTER_CAPS]] "
+ "[DEVICE_CLASSES[:FILTER_CAPS]] …");
+ g_option_context_add_main_entries (ctx, options, GETTEXT_PACKAGE);
+ g_option_context_add_group (ctx, gst_init_get_option_group ());
+ if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
+ g_print ("Error initializing: %s\n", GST_STR_NULL (err->message));
+ return 1;
+ }
+ g_option_context_free (ctx);
+
+ GST_DEBUG_CATEGORY_INIT (devmon_debug, "device-monitor", 0,
+ "gst-device-monitor");
+
+ if (print_version) {
+ gchar *version_str;
+
+ version_str = gst_version_string ();
+ g_print ("%s version %s\n", g_get_prgname (), PACKAGE_VERSION);
+ g_print ("%s\n", version_str);
+ g_print ("%s\n", GST_PACKAGE_ORIGIN);
+ g_free (version_str);
+
+ return 0;
+ }
+
+ app.loop = g_main_loop_new (NULL, FALSE);
+ app.monitor = gst_device_monitor_new ();
+
+ bus = gst_device_monitor_get_bus (app.monitor);
+ app.bus_watch_id = gst_bus_add_watch (bus, bus_msg_handler, &app);
+ gst_object_unref (bus);
+
+ /* process optional remaining arguments in the form
+ * DEVICE_CLASSES or DEVICE_CLASSES:FILTER_CAPS */
+ for (arg = args; arg != NULL && *arg != NULL; ++arg) {
+ gchar **filters = g_strsplit (*arg, ":", -1);
+ if (filters != NULL && filters[0] != NULL) {
+ GstCaps *caps = NULL;
+
+ if (filters[1] != NULL) {
+ caps = gst_caps_from_string (filters[1]);
+ if (caps == NULL)
+ g_warning ("Couldn't parse device filter caps '%s'", filters[1]);
+ }
+ gst_device_monitor_add_filter (app.monitor, filters[0], caps);
+ if (caps)
+ gst_caps_unref (caps);
+ g_strfreev (filters);
+ }
+ }
+
+ g_print ("Probing devices...\n\n");
+
+ timer = g_timer_new ();
+
+ if (!gst_device_monitor_start (app.monitor))
+ g_error ("Failed to start device monitor!");
+
+ GST_INFO ("Took %.2f seconds", g_timer_elapsed (timer, NULL));
+
+ devices = gst_device_monitor_get_devices (app.monitor);
+ if (devices != NULL) {
+ while (devices != NULL) {
+ GstDevice *device = devices->data;
+
+ device_added (device);
+ gst_object_unref (device);
+ devices = g_list_remove_link (devices, devices);
+ }
+ } else {
+ g_print ("No devices found!\n");
+ }
+
+ if (follow) {
+ g_print ("Monitoring devices, waiting for devices to be removed or "
+ "new devices to be added...\n");
+ g_main_loop_run (app.loop);
+ }
+
+ gst_device_monitor_stop (app.monitor);
+ gst_object_unref (app.monitor);
+
+ g_source_remove (app.bus_watch_id);
+ g_main_loop_unref (app.loop);
+ g_timer_destroy (timer);
+
+ return 0;
+}
projects / platform / upstream / gstreamer.git / commitdiff