gstreamer/tests/examples/gl/gtk/fxtest/fxtest.c
Vineeth TM 8c9ca808af gstreamer: bad: Fix memory leaks when context parse fails
When g_option_context_parse fails, context and error variables are not getting free'd
which results in memory leaks. Free'ing the same.

And replacing g_error_free with g_clear_error, which checks if the error being passed
is not NULL and sets the variable to NULL on free'ing.

https://bugzilla.gnome.org/show_bug.cgi?id=753854
2015-10-02 17:24:35 +03:00

339 lines
9.9 KiB
C

/*
* GStreamer
* Copyright (C) 2008-2009 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#include <gst/gst.h>
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "../gstgtk.h"
#include <gst/video/videooverlay.h>
static GstBusSyncReply
create_window (GstBus * bus, GstMessage * message, GtkWidget * widget)
{
/* ignore anything but 'prepare-window-handle' element messages */
if (GST_MESSAGE_TYPE (message) != GST_MESSAGE_ELEMENT)
return GST_BUS_PASS;
if (!gst_is_video_overlay_prepare_window_handle_message (message))
return GST_BUS_PASS;
g_print ("setting window handle\n");
/* do not call gdk_window_ensure_native for the first time here because
* we are in a different thread than the main thread
* (and the main thread the one) */
gst_video_overlay_set_gtk_window (GST_VIDEO_OVERLAY (GST_MESSAGE_SRC
(message)), widget);
gst_message_unref (message);
return GST_BUS_DROP;
}
static void
end_stream_cb (GstBus * bus, GstMessage * message, GstElement * pipeline)
{
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_EOS:
g_print ("End of stream\n");
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_object_unref (pipeline);
gtk_main_quit ();
break;
case GST_MESSAGE_ERROR:
{
gchar *debug = NULL;
GError *err = NULL;
gst_message_parse_error (message, &err, &debug);
g_print ("Error: %s\n", err->message);
g_clear_error (&err);
if (debug) {
g_print ("Debug details: %s\n", debug);
g_free (debug);
}
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_object_unref (pipeline);
gtk_main_quit ();
break;
}
default:
break;
}
}
static gboolean
expose_cb (GtkWidget * widget, gpointer unused, gpointer data)
{
GstVideoOverlay *overlay =
GST_VIDEO_OVERLAY (gst_bin_get_by_interface (GST_BIN (data),
GST_TYPE_VIDEO_OVERLAY));
gst_video_overlay_expose (overlay);
gst_object_unref (overlay);
return FALSE;
}
static void
destroy_cb (GtkWidget * widget, GdkEvent * event, GstElement * pipeline)
{
g_message ("destroy callback");
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_object_unref (pipeline);
gtk_main_quit ();
}
static gboolean
apply_fx (GtkWidget * widget, gpointer data)
{
gchar *fx;
GEnumClass *p_class;
/* heeeellppppp!! */
p_class =
G_PARAM_SPEC_ENUM (g_object_class_find_property (G_OBJECT_GET_CLASS
(G_OBJECT (data)), "effect")
)->enum_class;
fx = gtk_combo_box_text_get_active_text (GTK_COMBO_BOX_TEXT (widget));
g_print ("setting: %s - %s\n", fx, g_enum_get_value_by_nick (p_class,
fx)->value_name);
g_object_set (G_OBJECT (data), "effect", g_enum_get_value_by_nick (p_class,
fx)->value, NULL);
return FALSE;
}
static gboolean
play_cb (GtkWidget * widget, gpointer data)
{
g_message ("playing");
gst_element_set_state (GST_ELEMENT (data), GST_STATE_PLAYING);
return FALSE;
}
static gboolean
null_cb (GtkWidget * widget, gpointer data)
{
g_message ("nulling");
gst_element_set_state (GST_ELEMENT (data), GST_STATE_NULL);
return FALSE;
}
static gboolean
ready_cb (GtkWidget * widget, gpointer data)
{
g_message ("readying");
gst_element_set_state (GST_ELEMENT (data), GST_STATE_READY);
return FALSE;
}
static gboolean
pause_cb (GtkWidget * widget, gpointer data)
{
g_message ("pausing");
gst_element_set_state (GST_ELEMENT (data), GST_STATE_PAUSED);
return FALSE;
}
gint
main (gint argc, gchar * argv[])
{
GstStateChangeReturn ret;
GstElement *pipeline;
GstElement *filter, *sink;
GstElement *sourcebin;
GstBus *bus;
GError *error = NULL;
GtkWidget *window;
GtkWidget *screen;
GtkWidget *vbox, *combo;
GtkWidget *hbox;
GtkWidget *play, *pause, *null, *ready;
gchar **source_desc_array = NULL;
gchar *source_desc = NULL;
GOptionContext *context;
GOptionEntry options[] = {
{"source-bin", 's', 0, G_OPTION_ARG_STRING_ARRAY, &source_desc_array,
"Use a custom source bin description (gst-launch style)", NULL}
,
{NULL}
};
context = g_option_context_new (NULL);
g_option_context_add_main_entries (context, options, NULL);
g_option_context_add_group (context, gst_init_get_option_group ());
g_option_context_add_group (context, gtk_get_option_group (TRUE));
if (!g_option_context_parse (context, &argc, &argv, &error)) {
g_print ("Inizialization error: %s\n", GST_STR_NULL (error->message));
g_option_context_free (context);
g_clear_error (&error);
return -1;
}
g_option_context_free (context);
if (source_desc_array != NULL) {
source_desc = g_strjoinv (" ", source_desc_array);
g_strfreev (source_desc_array);
}
if (source_desc == NULL) {
source_desc =
g_strdup
("videotestsrc ! video/x-raw, width=352, height=288 ! identity");
}
sourcebin =
gst_parse_bin_from_description (g_strdup (source_desc), TRUE, &error);
g_free (source_desc);
if (error) {
g_print ("Error while parsing source bin description: %s\n",
GST_STR_NULL (error->message));
return -1;
}
g_set_application_name ("gst-gl-effects test app");
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_container_set_border_width (GTK_CONTAINER (window), 3);
pipeline = gst_pipeline_new ("pipeline");
filter = gst_element_factory_make ("gleffects", "flt");
sink = gst_element_factory_make ("glimagesink", "glsink");
gst_bin_add_many (GST_BIN (pipeline), sourcebin, filter, sink, NULL);
if (!gst_element_link_many (sourcebin, filter, sink, NULL)) {
g_print ("Failed to link one or more elements!\n");
return -1;
}
g_signal_connect (G_OBJECT (window), "delete-event",
G_CALLBACK (destroy_cb), pipeline);
g_signal_connect (G_OBJECT (window), "destroy-event",
G_CALLBACK (destroy_cb), pipeline);
screen = gtk_drawing_area_new ();
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_signal_watch (bus);
g_signal_connect (bus, "message::error", G_CALLBACK (end_stream_cb),
pipeline);
g_signal_connect (bus, "message::warning", G_CALLBACK (end_stream_cb),
pipeline);
g_signal_connect (bus, "message::eos", G_CALLBACK (end_stream_cb), pipeline);
gst_bus_set_sync_handler (bus, (GstBusSyncHandler) create_window, screen,
NULL);
gst_object_unref (bus);
gtk_widget_set_size_request (screen, 640, 480); // 500 x 376
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_box_pack_start (GTK_BOX (vbox), screen, TRUE, TRUE, 0);
combo = gtk_combo_box_text_new ();
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "identity");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "mirror");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "squeeze");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "stretch");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "fisheye");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "twirl");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "bulge");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "tunnel");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "square");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "heat");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "xpro");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "lumaxpro");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "sepia");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "xray");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "sin");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "glow");
g_signal_connect (G_OBJECT (combo), "changed", G_CALLBACK (apply_fx), filter);
gtk_box_pack_start (GTK_BOX (vbox), combo, FALSE, FALSE, 0);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
play = gtk_button_new_with_label ("PLAY");
g_signal_connect (G_OBJECT (play), "clicked", G_CALLBACK (play_cb), pipeline);
pause = gtk_button_new_with_label ("PAUSE");
g_signal_connect (G_OBJECT (pause), "clicked",
G_CALLBACK (pause_cb), pipeline);
null = gtk_button_new_with_label ("NULL");
g_signal_connect (G_OBJECT (null), "clicked", G_CALLBACK (null_cb), pipeline);
ready = gtk_button_new_with_label ("READY");
g_signal_connect (G_OBJECT (ready), "clicked",
G_CALLBACK (ready_cb), pipeline);
gtk_box_pack_start (GTK_BOX (hbox), null, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (hbox), ready, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (hbox), play, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (hbox), pause, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
g_signal_connect (screen, "draw", G_CALLBACK (expose_cb), pipeline);
g_signal_connect (screen, "configure-event", G_CALLBACK (expose_cb),
pipeline);
gtk_widget_realize (screen);
ret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
if (ret == GST_STATE_CHANGE_FAILURE) {
g_print ("Failed to start up pipeline!\n");
return -1;
}
gtk_widget_show_all (GTK_WIDGET (window));
gtk_main ();
return 0;
}