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1137ac6848
We use gdk_cairo_create() which is deprecated since 3.22.
270 lines
7.5 KiB
C
270 lines
7.5 KiB
C
/* GStreamer
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* Copyright (C) <2008> Stefan Kost <ensonic@users.sf.net>
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*
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* test-colorkey: test manual colorkey handling
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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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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/* FIXME: gdk_cairo_create() is deprecated nowadays */
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#define GDK_DISABLE_DEPRECATION_WARNINGS
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include <gdk/gdkx.h>
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#include <gtk/gtk.h>
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#include <gst/gst.h>
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#include <gst/video/videooverlay.h>
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static GtkWidget *video_window = NULL;
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static GstElement *sink = NULL;
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static gulong embed_xid = 0;
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static GdkRGBA trans_color;
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static gboolean trans_color_set = FALSE;
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static void
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redraw_overlay (GtkWidget * widget)
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{
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GtkAllocation allocation;
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GdkWindow *window = gtk_widget_get_window (widget);
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cairo_t *cr;
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cr = gdk_cairo_create (window);
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gtk_widget_get_allocation (widget, &allocation);
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_rectangle (cr, 0, 0, allocation.width, allocation.height);
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cairo_fill (cr);
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if (trans_color_set) {
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guint x, y;
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guint h = allocation.height * 0.75;
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gdk_cairo_set_source_rgba (cr, &trans_color);
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cairo_rectangle (cr, 0, 0, allocation.width, h);
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cairo_fill (cr);
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for (y = h; y < allocation.height; y++) {
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for (x = 0; x < allocation.width; x++) {
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if (((x & 1) || (y & 1)) && (x & 1) != (y & 1)) {
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cairo_move_to (cr, x, y);
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cairo_paint (cr);
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}
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}
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}
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}
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}
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static gboolean
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handle_resize_cb (GtkWidget * widget, GdkEventConfigure * event, gpointer data)
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{
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redraw_overlay (widget);
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return FALSE;
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}
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static gboolean
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draw_cb (GtkWidget * widget, cairo_t * cr, gpointer data)
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{
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redraw_overlay (widget);
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return FALSE;
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}
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static void
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realize_cb (GtkWidget * widget, gpointer data)
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{
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GdkWindow *window = gtk_widget_get_window (widget);
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/* This is here just for pedagogical purposes, GDK_WINDOW_XID will call it
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* as well */
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if (!gdk_window_ensure_native (window))
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g_error ("Couldn't create native window needed for GstVideoOverlay!");
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embed_xid = GDK_WINDOW_XID (window);
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g_print ("Window realize: video window XID = %lu\n", embed_xid);
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}
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static void
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msg_state_changed (GstBus * bus, GstMessage * message, GstPipeline * pipeline)
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{
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const GstStructure *s;
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s = gst_message_get_structure (message);
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/* We only care about state changed on the pipeline */
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if (s && GST_MESSAGE_SRC (message) == GST_OBJECT_CAST (pipeline)) {
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GstState old, new, pending;
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gint color;
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gst_message_parse_state_changed (message, &old, &new, &pending);
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/* When state of the pipeline changes to paused or playing we start updating scale */
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switch (GST_STATE_TRANSITION (old, new)) {
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case GST_STATE_CHANGE_READY_TO_PAUSED:{
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g_object_get (G_OBJECT (sink), "colorkey", &color, NULL);
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if (color != -1) {
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trans_color.red = (color & 0xff0000) >> 8;
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trans_color.green = (color & 0xff00);
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trans_color.blue = (color & 0xff) << 8;
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trans_color_set = TRUE;
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} else {
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trans_color_set = FALSE;
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}
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handle_resize_cb (video_window, NULL, NULL);
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break;
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}
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default:
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break;
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}
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}
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}
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static void
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window_closed (GtkWidget * widget, GdkEvent * event, gpointer user_data)
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{
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GstElement *pipeline = user_data;
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g_print ("stopping\n");
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gtk_widget_hide (widget);
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gtk_main_quit ();
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}
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static gboolean
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start_pipeline (gpointer user_data)
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{
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GstElement *pipeline = GST_ELEMENT (user_data);
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GstStateChangeReturn sret;
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sret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
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if (sret == GST_STATE_CHANGE_FAILURE) {
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gst_object_unref (pipeline);
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gtk_main_quit ();
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}
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return FALSE;
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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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GtkWidget *window;
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GstElement *pipeline, *src;
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GstBus *bus;
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GstStateChangeReturn sret;
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#if 0
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GstPropertyProbe *probe;
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GValueArray *arr;
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#endif
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gst_init (&argc, &argv);
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gtk_init (&argc, &argv);
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/* prepare the pipeline */
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pipeline = gst_pipeline_new ("xvoverlay");
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src = gst_element_factory_make ("videotestsrc", NULL);
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sink = gst_element_factory_make ("xvimagesink", NULL);
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gst_bin_add_many (GST_BIN (pipeline), src, sink, NULL);
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gst_element_link (src, sink);
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#define COLOR_GRAY 0x7F7F7F
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g_object_set (G_OBJECT (sink), "autopaint-colorkey", FALSE,
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"force-aspect-ratio", TRUE, "draw-borders", FALSE,
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"colorkey", COLOR_GRAY, NULL);
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/* check xvimagesink capabilities */
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sret = gst_element_set_state (pipeline, GST_STATE_READY);
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if (sret == GST_STATE_CHANGE_FAILURE) {
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g_printerr ("Can't set pipeline to READY\n");
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gst_object_unref (pipeline);
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return -1;
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}
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#if 0
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probe = GST_PROPERTY_PROBE (sink);
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if (!probe) {
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g_printerr ("Can't probe sink\n");
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gst_object_unref (pipeline);
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return -1;
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}
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arr =
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gst_property_probe_probe_and_get_values_name (probe,
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"autopaint-colorkey");
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if (!arr || !arr->n_values) {
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g_printerr ("Can't disable autopaint-colorkey property\n");
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gst_object_unref (pipeline);
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return -1;
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}
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if (arr)
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g_value_array_free (arr);
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#endif
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bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
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gst_bus_add_signal_watch_full (bus, G_PRIORITY_HIGH);
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g_signal_connect (bus, "message::state-changed",
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G_CALLBACK (msg_state_changed), pipeline);
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gst_object_unref (bus);
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/* prepare the ui */
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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g_signal_connect (G_OBJECT (window), "delete-event",
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G_CALLBACK (window_closed), (gpointer) pipeline);
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gtk_window_set_default_size (GTK_WINDOW (window), 320, 240);
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video_window = gtk_drawing_area_new ();
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g_signal_connect (G_OBJECT (video_window), "configure-event",
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G_CALLBACK (handle_resize_cb), NULL);
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g_signal_connect (G_OBJECT (video_window), "draw",
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G_CALLBACK (draw_cb), NULL);
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g_signal_connect (video_window, "realize", G_CALLBACK (realize_cb), NULL);
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gtk_container_add (GTK_CONTAINER (window), video_window);
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/* show the gui and play */
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gtk_widget_show_all (window);
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/* realize window now so that the video window gets created and we can
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* obtain its XID before the pipeline is started up and the videosink
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* asks for the XID of the window to render onto */
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gtk_widget_realize (window);
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/* we should have the XID now */
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g_assert (embed_xid != 0);
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/* we know what the video sink is in this case (xvimagesink), so we can
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* just set it directly here now (instead of waiting for a
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* prepare-window-handle element message in a sync bus handler and setting
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* it there) */
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g_print ("setting XID %lu\n", embed_xid);
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gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (sink), embed_xid);
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g_idle_add (start_pipeline, pipeline);
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gtk_main ();
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gst_object_unref (pipeline);
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return 0;
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}
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