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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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8fb8822532
Adds gtk camerabin2 example app
179 lines
4.5 KiB
C
179 lines
4.5 KiB
C
/*
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* GStreamer
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* Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* This is a demo application to test the camerabin element.
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* If you have question don't hesitate in contact me edgard.lima@indt.org.br
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*/
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/*
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* Includes
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "gst-camera2.h"
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#include <gst/gst.h>
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#include <gst/interfaces/xoverlay.h>
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#include <gtk/gtk.h>
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#include <gdk/gdkx.h>
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#include <gdk/gdkkeysyms.h>
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#define UI_FILE "gst-camera2.ui"
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static GstElement *camera;
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static GtkBuilder *builder;
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void
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on_mainWindow_delete_event (GtkWidget * widget, GdkEvent * event, gpointer data)
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{
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gtk_main_quit ();
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}
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void
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on_captureButton_clicked (GtkButton * button, gpointer user_data)
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{
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g_signal_emit_by_name (camera, "start-capture", NULL);
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}
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void
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on_stopCaptureButton_clicked (GtkButton * button, gpointer user_data)
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{
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g_signal_emit_by_name (camera, "stop-capture", NULL);
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}
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void
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on_imageRButton_toggled (GtkToggleButton * button, gpointer user_data)
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{
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if (gtk_toggle_button_get_active (button)) {
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g_object_set (camera, "mode", 1, NULL); /* Image mode */
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}
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}
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void
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on_videoRButton_toggled (GtkToggleButton * button, gpointer user_data)
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{
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if (gtk_toggle_button_get_active (button)) {
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g_object_set (camera, "mode", 2, NULL); /* Video mode */
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}
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}
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void
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on_viewfinderArea_realize (GtkWidget * widget, gpointer data)
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{
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#if GTK_CHECK_VERSION (2, 18, 0)
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gdk_window_ensure_native (gtk_widget_get_window (widget));
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#endif
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}
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static GstBusSyncReply
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bus_sync_callback (GstBus * bus, GstMessage * message, gpointer data)
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{
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GtkWidget *ui_drawing;
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if (GST_MESSAGE_TYPE (message) != GST_MESSAGE_ELEMENT)
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return GST_BUS_PASS;
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if (!gst_structure_has_name (message->structure, "prepare-xwindow-id"))
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return GST_BUS_PASS;
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/* FIXME: make sure to get XID in main thread */
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ui_drawing = GTK_WIDGET (gtk_builder_get_object (builder, "viewfinderArea"));
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gst_x_overlay_set_window_handle (GST_X_OVERLAY (message->src),
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GDK_WINDOW_XWINDOW (gtk_widget_get_window (ui_drawing)));
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gst_message_unref (message);
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return GST_BUS_DROP;
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}
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static gboolean
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bus_callback (GstBus * bus, GstMessage * message, gpointer data)
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{
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switch (GST_MESSAGE_TYPE (message)) {
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case GST_MESSAGE_WARNING:{
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GError *err;
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gchar *debug;
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gst_message_parse_warning (message, &err, &debug);
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g_print ("Warning: %s\n", err->message);
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g_error_free (err);
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g_free (debug);
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break;
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}
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case GST_MESSAGE_ERROR:{
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//print_error_message (message);
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//me_gst_cleanup_element ();
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gtk_main_quit ();
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break;
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}
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case GST_MESSAGE_EOS:
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/* end-of-stream */
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gtk_main_quit ();
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break;
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case GST_MESSAGE_ELEMENT:
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{
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//handle_element_message (message);
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break;
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}
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default:
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/* unhandled message */
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break;
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}
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return TRUE;
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}
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int
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main (int argc, char *argv[])
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{
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int ret = 0;
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GtkWidget *ui_main_window;
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GError *error = NULL;
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GstBus *bus;
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gst_init (&argc, &argv);
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gtk_init (&argc, &argv);
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builder = gtk_builder_new ();
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if (!gtk_builder_add_from_file (builder, UI_FILE, &error)) {
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g_warning ("Error: %s", error->message);
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g_free (error);
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return 1;
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}
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camera = gst_element_factory_make ("camerabin2", "camera");
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bus = gst_pipeline_get_bus (GST_PIPELINE (camera));
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gst_bus_add_watch (bus, bus_callback, NULL);
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gst_bus_set_sync_handler (bus, bus_sync_callback, NULL);
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gst_object_unref (bus);
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ui_main_window = GTK_WIDGET (gtk_builder_get_object (builder, "mainWindow"));
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gtk_builder_connect_signals (builder, NULL);
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gtk_widget_show_all (ui_main_window);
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gst_element_set_state (camera, GST_STATE_PLAYING);
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gtk_main ();
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gst_element_set_state (camera, GST_STATE_NULL);
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gst_object_unref (camera);
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return ret;
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}
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