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Date:      Mon, 23 Aug 2021 12:52:44 GMT
From:      Jan Beich <jbeich@FreeBSD.org>
To:        ports-committers@FreeBSD.org, dev-commits-ports-all@FreeBSD.org, dev-commits-ports-main@FreeBSD.org
Subject:   git: d88adb1c0af3 - main - x11-toolkits/gstreamer1-plugins-gtk4: add new port
Message-ID:  <202108231252.17NCqi0S050918@gitrepo.freebsd.org>

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The branch main has been updated by jbeich:

URL: https://cgit.FreeBSD.org/ports/commit/?id=d88adb1c0af3a6b9160a0ecdcc242ad91973d6dd

commit d88adb1c0af3a6b9160a0ecdcc242ad91973d6dd
Author:     Jan Beich <jbeich@FreeBSD.org>
AuthorDate: 2021-08-23 10:30:02 +0000
Commit:     Jan Beich <jbeich@FreeBSD.org>
CommitDate: 2021-08-23 12:52:23 +0000

    x11-toolkits/gstreamer1-plugins-gtk4: add new port
    
    GTK4 plugin contains:
    
    - gtk4glsink: A video sink that renders to a GtkWidget using OpenGL
    - gtk4sink: A video sink that renders to a GtkWidget
    
    https://gstreamer.freedesktop.org/documentation/gtk/gtksink.html
---
 Mk/bsd.gstreamer.mk                                |    4 +
 x11-toolkits/Makefile                              |    1 +
 x11-toolkits/gstreamer1-plugins-gtk4/Makefile      |   20 +
 x11-toolkits/gstreamer1-plugins-gtk4/distinfo      |    3 +
 .../gstreamer1-plugins-gtk4/files/patch-gtk4       | 1145 ++++++++++++++++++++
 x11-toolkits/gstreamer1-plugins-gtk4/pkg-descr     |    6 +
 6 files changed, 1179 insertions(+)

diff --git a/Mk/bsd.gstreamer.mk b/Mk/bsd.gstreamer.mk
index 8e77a7d4c771..c6009f416a50 100644
--- a/Mk/bsd.gstreamer.mk
+++ b/Mk/bsd.gstreamer.mk
@@ -111,6 +111,7 @@ _GSTREAMER_PLUGINS+= \
 		dvdread \
 		editing-services \
 		gtk \
+		gtk4 \
 		hls \
 		kate \
 		kms \
@@ -476,6 +477,9 @@ ximagesrc_IMPL=		good
 gtk_DEPENDS=	x11-toolkits/gstreamer-plugins-gtk
 gtk_IMPL=	bad
 
+gtk4_DEPENDS=	x11-toolkits/gstreamer-plugins-gtk4
+gtk4_IMPL=	good
+
 pango_DEPENDS=	x11-toolkits/gstreamer-plugins-pango
 pango_IMPL=	#
 
diff --git a/x11-toolkits/Makefile b/x11-toolkits/Makefile
index 4c1274243d7b..a0a801bfc0e7 100644
--- a/x11-toolkits/Makefile
+++ b/x11-toolkits/Makefile
@@ -23,6 +23,7 @@
     SUBDIR += gnustep-gui
     SUBDIR += granite
     SUBDIR += gstreamer1-plugins-gtk
+    SUBDIR += gstreamer1-plugins-gtk4
     SUBDIR += gstreamer1-plugins-pango
     SUBDIR += gtk-layer-shell
     SUBDIR += gtk-sharp-beans
diff --git a/x11-toolkits/gstreamer1-plugins-gtk4/Makefile b/x11-toolkits/gstreamer1-plugins-gtk4/Makefile
new file mode 100644
index 000000000000..61882b85e10e
--- /dev/null
+++ b/x11-toolkits/gstreamer1-plugins-gtk4/Makefile
@@ -0,0 +1,20 @@
+PORTNAME=	gstreamer1-plugins-gtk4
+DISTVERSION=	1.16.2
+CATEGORIES=	x11-toolkits
+MASTER_SITES=	GNOME/sources/${DISTNAME:S/-${DISTVERSION}/\/${DISTVERSION:R}/} \
+		https://gstreamer.freedesktop.org/src/${DISTNAME:S/-${DISTVERSION}//}/
+DISTNAME=	gst-plugins-good-${DISTVERSION}
+
+MAINTAINER=	jbeich@FreeBSD.org
+COMMENT=	GStreamer GTK4 video sink plugin
+
+LICENSE=	LGPL21+
+LICENSE_FILE=	${WRKSRC}/COPYING
+
+USES=		compiler:c11 gnome meson pkgconfig tar:xz
+USE_GNOME=	cairo gtk40
+USE_GSTREAMER1=	gl
+MESON_ARGS=	--auto-features=disabled -Dgtk4=enabled
+PLIST_FILES=	lib/gstreamer-1.0/libgstgtk4.so
+
+.include <bsd.port.mk>
diff --git a/x11-toolkits/gstreamer1-plugins-gtk4/distinfo b/x11-toolkits/gstreamer1-plugins-gtk4/distinfo
new file mode 100644
index 000000000000..c4d7ce4bad12
--- /dev/null
+++ b/x11-toolkits/gstreamer1-plugins-gtk4/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1575371194
+SHA256 (gst-plugins-good-1.16.2.tar.xz) = 40bb3bafda25c0b739c8fc36e48380fccf61c4d3f83747e97ac3f9b0171b1319
+SIZE (gst-plugins-good-1.16.2.tar.xz) = 3897172
diff --git a/x11-toolkits/gstreamer1-plugins-gtk4/files/patch-gtk4 b/x11-toolkits/gstreamer1-plugins-gtk4/files/patch-gtk4
new file mode 100644
index 000000000000..8b1fe8e0a512
--- /dev/null
+++ b/x11-toolkits/gstreamer1-plugins-gtk4/files/patch-gtk4
@@ -0,0 +1,1145 @@
+https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/767
+
+--- ext/gtk/gstgtkbasesink.c.orig	2019-12-03 11:06:37 UTC
++++ ext/gtk/gstgtkbasesink.c
+@@ -1,6 +1,7 @@
+ /*
+  * GStreamer
+  * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
++ * Copyright (C) 2020 Rafał Dzięgiel <rafostar.github@gmail.com>
+  *
+  * This library is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Library General Public
+@@ -77,7 +78,7 @@ G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstGtkBaseSink, gst_
+     G_IMPLEMENT_INTERFACE (GST_TYPE_NAVIGATION,
+         gst_gtk_base_sink_navigation_interface_init);
+     GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_base_sink,
+-        "gtkbasesink", 0, "Gtk Video Sink base class"));
++        "gtkbasesink", 0, "GTK Video Sink base class"));
+ 
+ 
+ static void
+@@ -97,7 +98,7 @@ gst_gtk_base_sink_class_init (GstGtkBaseSinkClass * kl
+   gobject_class->get_property = gst_gtk_base_sink_get_property;
+ 
+   g_object_class_install_property (gobject_class, PROP_WIDGET,
+-      g_param_spec_object ("widget", "Gtk Widget",
++      g_param_spec_object ("widget", "GTK Widget",
+           "The GtkWidget to place in the widget hierarchy "
+           "(must only be get from the GTK main thread)",
+           GTK_TYPE_WIDGET, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+@@ -114,10 +115,13 @@ gst_gtk_base_sink_class_init (GstGtkBaseSinkClass * kl
+           "The pixel aspect ratio of the device", DEFAULT_PAR_N, DEFAULT_PAR_D,
+           G_MAXINT, 1, 1, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ 
++  /* Disabling alpha was removed in GTK4 */
++#if !defined(BUILD_FOR_GTK4)
+   g_object_class_install_property (gobject_class, PROP_IGNORE_ALPHA,
+       g_param_spec_boolean ("ignore-alpha", "Ignore Alpha",
+           "When enabled, alpha will be ignored and converted to black",
+           DEFAULT_IGNORE_ALPHA, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
++#endif
+ 
+   gobject_class->finalize = gst_gtk_base_sink_finalize;
+ 
+@@ -144,6 +148,8 @@ gst_gtk_base_sink_finalize (GObject * object)
+ {
+   GstGtkBaseSink *gtk_sink = GST_GTK_BASE_SINK (object);
+ 
++  GST_DEBUG ("finalizing base sink");
++
+   GST_OBJECT_LOCK (gtk_sink);
+   if (gtk_sink->window && gtk_sink->window_destroy_id)
+     g_signal_handler_disconnect (gtk_sink->window, gtk_sink->window_destroy_id);
+@@ -168,6 +174,14 @@ static void
+ window_destroy_cb (GtkWidget * widget, GstGtkBaseSink * gtk_sink)
+ {
+   GST_OBJECT_LOCK (gtk_sink);
++  if (gtk_sink->widget) {
++    if (gtk_sink->widget_destroy_id) {
++      g_signal_handler_disconnect (gtk_sink->widget,
++          gtk_sink->widget_destroy_id);
++      gtk_sink->widget_destroy_id = 0;
++    }
++    g_clear_object (&gtk_sink->widget);
++  }
+   gtk_sink->window = NULL;
+   GST_OBJECT_UNLOCK (gtk_sink);
+ }
+@@ -180,7 +194,11 @@ gst_gtk_base_sink_get_widget (GstGtkBaseSink * gtk_sin
+ 
+   /* Ensure GTK is initialized, this has no side effect if it was already
+    * initialized. Also, we do that lazily, so the application can be first */
+-  if (!gtk_init_check (NULL, NULL)) {
++  if (!gtk_init_check (
++#if !defined(BUILD_FOR_GTK4)
++          NULL, NULL
++#endif
++      )) {
+     GST_ERROR_OBJECT (gtk_sink, "Could not ensure GTK initialization.");
+     return NULL;
+   }
+@@ -195,13 +213,16 @@ gst_gtk_base_sink_get_widget (GstGtkBaseSink * gtk_sin
+   gtk_sink->bind_pixel_aspect_ratio =
+       g_object_bind_property (gtk_sink, "pixel-aspect-ratio", gtk_sink->widget,
+       "pixel-aspect-ratio", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
++#if !defined(BUILD_FOR_GTK4)
+   gtk_sink->bind_ignore_alpha =
+       g_object_bind_property (gtk_sink, "ignore-alpha", gtk_sink->widget,
+       "ignore-alpha", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
++#endif
+ 
+   /* Take the floating ref, other wise the destruction of the container will
+    * make this widget disapear possibly before we are done. */
+   gst_object_ref_sink (gtk_sink->widget);
++
+   gtk_sink->widget_destroy_id = g_signal_connect (gtk_sink->widget, "destroy",
+       G_CALLBACK (widget_destroy_cb), gtk_sink);
+ 
+@@ -311,25 +332,55 @@ gst_gtk_base_sink_start_on_main (GstBaseSink * bsink)
+   GstGtkBaseSink *gst_sink = GST_GTK_BASE_SINK (bsink);
+   GstGtkBaseSinkClass *klass = GST_GTK_BASE_SINK_GET_CLASS (bsink);
+   GtkWidget *toplevel;
++#if defined(BUILD_FOR_GTK4)
++  GtkRoot *root;
++#endif
+ 
+   if (gst_gtk_base_sink_get_widget (gst_sink) == NULL)
+     return FALSE;
+ 
+   /* After this point, gtk_sink->widget will always be set */
+ 
++#if defined(BUILD_FOR_GTK4)
++  root = gtk_widget_get_root (GTK_WIDGET (gst_sink->widget));
++  if (!GTK_IS_ROOT (root)) {
++    GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (gst_sink->widget));
++    if (parent) {
++      GtkWidget *temp_parent;
++      while ((temp_parent = gtk_widget_get_parent (parent)))
++        parent = temp_parent;
++    }
++    toplevel = (parent) ? parent : GTK_WIDGET (gst_sink->widget);
++#else
+   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (gst_sink->widget));
+   if (!gtk_widget_is_toplevel (toplevel)) {
++#endif
+     /* sanity check */
+     g_assert (klass->window_title);
+ 
+     /* User did not add widget its own UI, let's popup a new GtkWindow to
+      * make gst-launch-1.0 work. */
+-    gst_sink->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
++    gst_sink->window = gtk_window_new (
++#if !defined(BUILD_FOR_GTK4)
++        GTK_WINDOW_TOPLEVEL
++#endif
++        );
+     gtk_window_set_default_size (GTK_WINDOW (gst_sink->window), 640, 480);
+     gtk_window_set_title (GTK_WINDOW (gst_sink->window), klass->window_title);
+-    gtk_container_add (GTK_CONTAINER (gst_sink->window), toplevel);
+-    gst_sink->window_destroy_id = g_signal_connect (gst_sink->window, "destroy",
+-        G_CALLBACK (window_destroy_cb), gst_sink);
++#if defined(BUILD_FOR_GTK4)
++    gtk_window_set_child (GTK_WINDOW (
++#else
++    gtk_container_add (GTK_CONTAINER (
++#endif
++            gst_sink->window), toplevel);
++
++    gst_sink->window_destroy_id = g_signal_connect (
++#if defined(BUILD_FOR_GTK4)
++        GTK_WINDOW (gst_sink->window),
++#else
++        gst_sink->window,
++#endif
++        "destroy", G_CALLBACK (window_destroy_cb), gst_sink);
+   }
+ 
+   return TRUE;
+@@ -348,7 +399,11 @@ gst_gtk_base_sink_stop_on_main (GstBaseSink * bsink)
+   GstGtkBaseSink *gst_sink = GST_GTK_BASE_SINK (bsink);
+ 
+   if (gst_sink->window) {
++#if defined(BUILD_FOR_GTK4)
++    gtk_window_destroy (GTK_WINDOW (gst_sink->window));
++#else
+     gtk_widget_destroy (gst_sink->window);
++#endif
+     gst_sink->window = NULL;
+     gst_sink->widget = NULL;
+   }
+@@ -369,10 +424,14 @@ gst_gtk_base_sink_stop (GstBaseSink * bsink)
+ }
+ 
+ static void
+-gst_gtk_widget_show_all_and_unref (GtkWidget * widget)
++gst_gtk_window_show_all_and_unref (GtkWidget * window)
+ {
+-  gtk_widget_show_all (widget);
+-  g_object_unref (widget);
++#if defined(BUILD_FOR_GTK4)
++  gtk_window_present (GTK_WINDOW (window));
++#else
++  gtk_widget_show_all (window);
++#endif
++  g_object_unref (window);
+ }
+ 
+ static GstStateChangeReturn
+@@ -400,7 +459,7 @@ gst_gtk_base_sink_change_state (GstElement * element, 
+       GST_OBJECT_UNLOCK (gtk_sink);
+ 
+       if (window)
+-        gst_gtk_invoke_on_main ((GThreadFunc) gst_gtk_widget_show_all_and_unref,
++        gst_gtk_invoke_on_main ((GThreadFunc) gst_gtk_window_show_all_and_unref,
+             window);
+ 
+       break;
+--- ext/gtk/gstgtkbasesink.h.orig	2019-12-03 11:06:37 UTC
++++ ext/gtk/gstgtkbasesink.h
+@@ -51,14 +51,14 @@ GType gst_gtk_base_sink_get_type (void);
+ struct _GstGtkBaseSink
+ {
+   /* <private> */
+-  GstVideoSink         parent;
++  GstVideoSink          parent;
+ 
+-  GstVideoInfo         v_info;
++  GstVideoInfo          v_info;
+ 
+   GtkGstBaseWidget     *widget;
+ 
+   /* properties */
+-  gboolean             force_aspect_ratio;
++  gboolean              force_aspect_ratio;
+   GBinding             *bind_aspect_ratio;
+ 
+   gint                  par_n;
+@@ -69,8 +69,8 @@ struct _GstGtkBaseSink
+   GBinding             *bind_ignore_alpha;
+ 
+   GtkWidget            *window;
+-  gulong               widget_destroy_id;
+-  gulong               window_destroy_id;
++  gulong                widget_destroy_id;
++  gulong                window_destroy_id;
+ };
+ 
+ /**
+--- ext/gtk/gstgtkglsink.c.orig	2019-12-03 11:06:37 UTC
++++ ext/gtk/gstgtkglsink.c
+@@ -1,6 +1,7 @@
+ /*
+  * GStreamer
+  * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
++ * Copyright (C) 2020 Rafał Dzięgiel <rafostar.github@gmail.com>
+  *
+  * This library is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Library General Public
+@@ -23,12 +24,18 @@
+  * @title: gtkglsink
+  */
+ 
++/**
++ * SECTION:element-gtk4glsink
++ * @title: gtk4glsink
++ */
++
+ #ifdef HAVE_CONFIG_H
+ #include "config.h"
+ #endif
+ 
+ #include <gst/gl/gstglfuncs.h>
+ 
++#include "gtkconfig.h"
+ #include "gstgtkglsink.h"
+ #include "gtkgstglwidget.h"
+ 
+@@ -58,7 +65,7 @@ static GstStaticPadTemplate gst_gtk_gl_sink_template =
+ #define gst_gtk_gl_sink_parent_class parent_class
+ G_DEFINE_TYPE_WITH_CODE (GstGtkGLSink, gst_gtk_gl_sink,
+     GST_TYPE_GTK_BASE_SINK, GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_gl_sink,
+-        "gtkglsink", 0, "Gtk GL Video Sink"));
++        GTKCONFIG_GLSINK, 0, GTKCONFIG_NAME " GL Video Sink"));
+ 
+ static void
+ gst_gtk_gl_sink_class_init (GstGtkGLSinkClass * klass)
+@@ -82,11 +89,13 @@ gst_gtk_gl_sink_class_init (GstGtkGLSinkClass * klass)
+   gstbasesink_class->get_caps = gst_gtk_gl_sink_get_caps;
+ 
+   gstgtkbasesink_class->create_widget = gtk_gst_gl_widget_new;
+-  gstgtkbasesink_class->window_title = "Gtk+ GL renderer";
++  gstgtkbasesink_class->window_title = GTKCONFIG_NAME " GL Renderer";
+ 
+-  gst_element_class_set_metadata (gstelement_class, "Gtk GL Video Sink",
++  gst_element_class_set_metadata (gstelement_class,
++      GTKCONFIG_NAME " GL Video Sink",
+       "Sink/Video", "A video sink that renders to a GtkWidget using OpenGL",
+-      "Matthew Waters <matthew@centricular.com>");
++      "Matthew Waters <matthew@centricular.com>, "
++      "Rafał Dzięgiel <rafostar.github@gmail.com>");
+ 
+   gst_element_class_add_static_pad_template (gstelement_class,
+       &gst_gtk_gl_sink_template);
+@@ -120,16 +129,18 @@ gst_gtk_gl_sink_query (GstBaseSink * bsink, GstQuery *
+ }
+ 
+ static void
+-_size_changed_cb (GtkWidget * widget, GdkRectangle * rectangle,
+-    GstGtkGLSink * gtk_sink)
++_size_changed_cb (GtkWidget * widget, gint width,
++    gint height, GstGtkGLSink * gtk_sink)
+ {
+-  gint scale_factor, width, height;
+   gboolean reconfigure;
+ 
+-  scale_factor = gtk_widget_get_scale_factor (widget);
+-  width = scale_factor * gtk_widget_get_allocated_width (widget);
+-  height = scale_factor * gtk_widget_get_allocated_height (widget);
++  GtkGstBaseWidget *base_widget = GTK_GST_BASE_WIDGET (widget);
+ 
++  /* Ignore size changes before widget is negotiated
++   * we are going to queue a resize after negotiation */
++  if (!base_widget->negotiated)
++    return;
++
+   GST_OBJECT_LOCK (gtk_sink);
+   reconfigure =
+       (width != gtk_sink->display_width || height != gtk_sink->display_height);
+@@ -138,7 +149,7 @@ _size_changed_cb (GtkWidget * widget, GdkRectangle * r
+   GST_OBJECT_UNLOCK (gtk_sink);
+ 
+   if (reconfigure) {
+-    GST_DEBUG_OBJECT (gtk_sink, "Sending reconfigure event on sinkpad.");
++    GST_DEBUG_OBJECT (gtk_sink, "Sending reconfigure event on sinkpad");
+     gst_pad_push_event (GST_BASE_SINK (gtk_sink)->sinkpad,
+         gst_event_new_reconfigure ());
+   }
+@@ -147,9 +158,9 @@ _size_changed_cb (GtkWidget * widget, GdkRectangle * r
+ static void
+ destroy_cb (GtkWidget * widget, GstGtkGLSink * gtk_sink)
+ {
+-  if (gtk_sink->size_allocate_sig_handler) {
+-    g_signal_handler_disconnect (widget, gtk_sink->size_allocate_sig_handler);
+-    gtk_sink->size_allocate_sig_handler = 0;
++  if (gtk_sink->widget_resize_sig_handler) {
++    g_signal_handler_disconnect (widget, gtk_sink->widget_resize_sig_handler);
++    gtk_sink->widget_resize_sig_handler = 0;
+   }
+ 
+   if (gtk_sink->widget_destroy_sig_handler) {
+@@ -172,29 +183,34 @@ gst_gtk_gl_sink_start (GstBaseSink * bsink)
+   gst_widget = GTK_GST_GL_WIDGET (base_sink->widget);
+ 
+   /* Track the allocation size */
+-  gtk_sink->size_allocate_sig_handler =
+-      g_signal_connect (gst_widget, "size-allocate",
+-      G_CALLBACK (_size_changed_cb), gtk_sink);
++  if (!gtk_sink->widget_resize_sig_handler) {
++    gtk_sink->widget_resize_sig_handler =
++        g_signal_connect (gst_widget, "resize",
++        G_CALLBACK (_size_changed_cb), gtk_sink);
++  }
+ 
+-  gtk_sink->widget_destroy_sig_handler =
+-      g_signal_connect (gst_widget, "destroy", G_CALLBACK (destroy_cb),
+-      gtk_sink);
++  if (!gtk_sink->widget_destroy_sig_handler) {
++    gtk_sink->widget_destroy_sig_handler =
++        g_signal_connect (gst_widget, "destroy", G_CALLBACK (destroy_cb),
++        gtk_sink);
++  }
+ 
+-  _size_changed_cb (GTK_WIDGET (gst_widget), NULL, gtk_sink);
+-
+   if (!gtk_gst_gl_widget_init_winsys (gst_widget)) {
+     GST_ELEMENT_ERROR (bsink, RESOURCE, NOT_FOUND, ("%s",
+-            "Failed to initialize OpenGL with Gtk"), (NULL));
++            "Failed to initialize OpenGL with GTK"), (NULL));
+     return FALSE;
+   }
+ 
+-  gtk_sink->display = gtk_gst_gl_widget_get_display (gst_widget);
+-  gtk_sink->context = gtk_gst_gl_widget_get_context (gst_widget);
+-  gtk_sink->gtk_context = gtk_gst_gl_widget_get_gtk_context (gst_widget);
++  if (!gtk_sink->display)
++    gtk_sink->display = gtk_gst_gl_widget_get_display (gst_widget);
++  if (!gtk_sink->context)
++    gtk_sink->context = gtk_gst_gl_widget_get_context (gst_widget);
++  if (!gtk_sink->gtk_context)
++    gtk_sink->gtk_context = gtk_gst_gl_widget_get_gtk_context (gst_widget);
+ 
+   if (!gtk_sink->display || !gtk_sink->context || !gtk_sink->gtk_context) {
+     GST_ELEMENT_ERROR (bsink, RESOURCE, NOT_FOUND, ("%s",
+-            "Failed to retrieve OpenGL context from Gtk"), (NULL));
++            "Failed to retrieve OpenGL context from GTK"), (NULL));
+     return FALSE;
+   }
+ 
+@@ -208,7 +224,14 @@ static gboolean
+ gst_gtk_gl_sink_stop (GstBaseSink * bsink)
+ {
+   GstGtkGLSink *gtk_sink = GST_GTK_GL_SINK (bsink);
++  GstGtkBaseSink *base_sink = GST_GTK_BASE_SINK (bsink);
+ 
++  if (gtk_sink->widget_resize_sig_handler) {
++    g_signal_handler_disconnect (base_sink->widget,
++        gtk_sink->widget_resize_sig_handler);
++    gtk_sink->widget_resize_sig_handler = 0;
++  }
++
+   if (gtk_sink->display) {
+     gst_object_unref (gtk_sink->display);
+     gtk_sink->display = NULL;
+@@ -348,10 +371,10 @@ gst_gtk_gl_sink_finalize (GObject * object)
+   GstGtkGLSink *gtk_sink = GST_GTK_GL_SINK (object);
+   GstGtkBaseSink *base_sink = GST_GTK_BASE_SINK (object);
+ 
+-  if (gtk_sink->size_allocate_sig_handler) {
++  if (gtk_sink->widget_resize_sig_handler) {
+     g_signal_handler_disconnect (base_sink->widget,
+-        gtk_sink->size_allocate_sig_handler);
+-    gtk_sink->size_allocate_sig_handler = 0;
++        gtk_sink->widget_resize_sig_handler);
++    gtk_sink->widget_resize_sig_handler = 0;
+   }
+ 
+   if (gtk_sink->widget_destroy_sig_handler) {
+--- ext/gtk/gstgtkglsink.h.orig	2019-12-03 11:06:37 UTC
++++ ext/gtk/gstgtkglsink.h
+@@ -65,7 +65,7 @@ struct _GstGtkGLSink
+   gint                  display_width;
+   gint                  display_height;
+ 
+-  gulong                size_allocate_sig_handler;
++  gulong                widget_resize_sig_handler;
+   gulong                widget_destroy_sig_handler;
+ };
+ 
+--- ext/gtk/gstgtksink.c.orig	2019-12-03 11:06:37 UTC
++++ ext/gtk/gstgtksink.c
+@@ -19,15 +19,22 @@
+  */
+ 
+ /**
+- * SECTION:element-gtkgstsink
+- * @title: gtkgstsink
++ * SECTION:element-gtksink
++ * @title: gtksink
+  *
+  */
+ 
++/**
++ * SECTION:element-gtk4sink
++ * @title: gtk4sink
++ *
++ */
++
+ #ifdef HAVE_CONFIG_H
+ #include "config.h"
+ #endif
+ 
++#include "gtkconfig.h"
+ #include "gtkgstwidget.h"
+ #include "gstgtksink.h"
+ 
+@@ -49,8 +56,8 @@ GST_STATIC_PAD_TEMPLATE ("sink",
+ 
+ #define gst_gtk_sink_parent_class parent_class
+ G_DEFINE_TYPE_WITH_CODE (GstGtkSink, gst_gtk_sink, GST_TYPE_GTK_BASE_SINK,
+-    GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_sink, "gtksink", 0,
+-        "Gtk Video Sink"));
++    GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_sink, GTKCONFIG_SINK, 0,
++        GTKCONFIG_NAME " Video Sink"));
+ 
+ static void
+ gst_gtk_sink_class_init (GstGtkSinkClass * klass)
+@@ -62,9 +69,10 @@ gst_gtk_sink_class_init (GstGtkSinkClass * klass)
+   base_class = (GstGtkBaseSinkClass *) klass;
+ 
+   base_class->create_widget = gtk_gst_widget_new;
+-  base_class->window_title = "Gtk+ Cairo renderer";
++  base_class->window_title = GTKCONFIG_NAME " Cairo Renderer";
+ 
+-  gst_element_class_set_metadata (gstelement_class, "Gtk Video Sink",
++  gst_element_class_set_metadata (gstelement_class,
++      GTKCONFIG_NAME " Video Sink",
+       "Sink/Video", "A video sink that renders to a GtkWidget",
+       "Matthew Waters <matthew@centricular.com>");
+ 
+--- ext/gtk/gstplugin.c.orig	2019-12-03 11:06:37 UTC
++++ ext/gtk/gstplugin.c
+@@ -1,6 +1,7 @@
+ /*
+  * GStreamer
+  * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
++ * Copyright (C) 2020 Rafał Dzięgiel <rafostar.github@gmail.com>
+  *
+  * This library is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Library General Public
+@@ -22,31 +23,31 @@
+ #include "config.h"
+ #endif
+ 
++#include "gtkconfig.h"
+ #include "gstgtksink.h"
+-#if defined(HAVE_GTK3_GL)
++
++#if defined(HAVE_GTK_GL)
+ #include "gstgtkglsink.h"
+ #endif
+ 
+ static gboolean
+ plugin_init (GstPlugin * plugin)
+ {
+-  if (!gst_element_register (plugin, "gtksink",
++  if (!gst_element_register (plugin, GTKCONFIG_SINK,
+           GST_RANK_NONE, GST_TYPE_GTK_SINK)) {
+     return FALSE;
+   }
+-#if defined(HAVE_GTK3_GL)
+-  if (!gst_element_register (plugin, "gtkglsink",
++#if defined(HAVE_GTK_GL)
++  if (!gst_element_register (plugin, GTKCONFIG_GLSINK,
+           GST_RANK_NONE, GST_TYPE_GTK_GL_SINK)) {
+     return FALSE;
+   }
+ #endif
+-
+   return TRUE;
+ }
+ 
+ GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+     GST_VERSION_MINOR,
+-    gtk,
+-    "Gtk+ sink",
++    GTKCONFIG_PLUGIN, GTKCONFIG_NAME " sink",
+     plugin_init, PACKAGE_VERSION, GST_LICENSE, GST_PACKAGE_NAME,
+     GST_PACKAGE_ORIGIN)
+--- ext/gtk/gtkconfig.h.orig	2021-08-23 11:11:05 UTC
++++ ext/gtk/gtkconfig.h
+@@ -0,0 +1,31 @@
++/*
++ * GStreamer
++ * Copyright (C) 2020 Rafał Dzięgiel <rafostar.github@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.
++ */
++
++#if defined(BUILD_FOR_GTK4)
++#define GTKCONFIG_PLUGIN gtk4
++#define GTKCONFIG_NAME "GTK4"
++#define GTKCONFIG_SINK "gtk4sink"
++#define GTKCONFIG_GLSINK "gtk4glsink"
++#else
++#define GTKCONFIG_PLUGIN gtk
++#define GTKCONFIG_NAME "GTK"
++#define GTKCONFIG_SINK "gtksink"
++#define GTKCONFIG_GLSINK "gtkglsink"
++#endif
+--- ext/gtk/gtkgstbasewidget.c.orig	2019-12-03 11:06:37 UTC
++++ ext/gtk/gtkgstbasewidget.c
+@@ -1,6 +1,7 @@
+ /*
+  * GStreamer
+  * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
++ * Copyright (C) 2020 Rafał Dzięgiel <rafostar.github@gmail.com>
+  *
+  * This library is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Library General Public
+@@ -74,7 +75,23 @@ gtk_gst_base_widget_get_preferred_height (GtkWidget * 
+     *natural = video_height;
+ }
+ 
++#if defined(BUILD_FOR_GTK4)
+ static void
++gtk_gst_base_widget_measure (GtkWidget * widget, GtkOrientation orientation,
++    gint for_size, gint * min, gint * natural,
++    gint * minimum_baseline, gint * natural_baseline)
++{
++  if (orientation == GTK_ORIENTATION_HORIZONTAL)
++    gtk_gst_base_widget_get_preferred_width (widget, min, natural);
++  else
++    gtk_gst_base_widget_get_preferred_height (widget, min, natural);
++
++  *minimum_baseline = -1;
++  *natural_baseline = -1;
++}
++#endif
++
++static void
+ gtk_gst_base_widget_set_property (GObject * object, guint prop_id,
+     const GValue * value, GParamSpec * pspec)
+ {
+@@ -235,22 +252,46 @@ _gdk_key_to_navigation_string (guint keyval)
+   }
+ }
+ 
++static GdkEvent *
++_get_current_event (GtkEventController * controller)
++{
++#if defined(BUILD_FOR_GTK4)
++  return gtk_event_controller_get_current_event (controller);
++#else
++  return gtk_get_current_event ();
++#endif
++}
++
++static void
++_gdk_event_free (GdkEvent * event)
++{
++#if !defined(BUILD_FOR_GTK4)
++  if (event)
++    gdk_event_free (event);
++#endif
++}
++
+ static gboolean
+-gtk_gst_base_widget_key_event (GtkWidget * widget, GdkEventKey * event)
++gtk_gst_base_widget_key_event (GtkEventControllerKey * key_controller,
++    guint keyval, guint keycode, GdkModifierType state)
+ {
++  GtkEventController *controller = GTK_EVENT_CONTROLLER (key_controller);
++  GtkWidget *widget = gtk_event_controller_get_widget (controller);
+   GtkGstBaseWidget *base_widget = GTK_GST_BASE_WIDGET (widget);
+   GstElement *element;
+ 
+   if ((element = g_weak_ref_get (&base_widget->element))) {
+     if (GST_IS_NAVIGATION (element)) {
+-      const gchar *str = _gdk_key_to_navigation_string (event->keyval);
+-      const gchar *key_type =
+-          event->type == GDK_KEY_PRESS ? "key-press" : "key-release";
++      GdkEvent *event = _get_current_event (controller);
++      const gchar *str = _gdk_key_to_navigation_string (keyval);
+ 
+-      if (!str)
+-        str = event->string;
+-
+-      gst_navigation_send_key_event (GST_NAVIGATION (element), key_type, str);
++      if (str) {
++        const gchar *key_type =
++            gdk_event_get_event_type (event) ==
++            GDK_KEY_PRESS ? "key-press" : "key-release";
++        gst_navigation_send_key_event (GST_NAVIGATION (element), key_type, str);
++      }
++      _gdk_event_free (event);
+     }
+     g_object_unref (element);
+   }
+@@ -325,22 +366,43 @@ _display_size_to_stream_size (GtkGstBaseWidget * base_
+ }
+ 
+ static gboolean
+-gtk_gst_base_widget_button_event (GtkWidget * widget, GdkEventButton * event)
++gtk_gst_base_widget_button_event (
++#if defined(BUILD_FOR_GTK4)
++    GtkGestureClick * gesture,
++#else
++    GtkGestureMultiPress * gesture,
++#endif
++    gint n_press, gdouble x, gdouble y)
+ {
++  GtkEventController *controller = GTK_EVENT_CONTROLLER (gesture);
++  GtkWidget *widget = gtk_event_controller_get_widget (controller);
+   GtkGstBaseWidget *base_widget = GTK_GST_BASE_WIDGET (widget);
+   GstElement *element;
+ 
+   if ((element = g_weak_ref_get (&base_widget->element))) {
+     if (GST_IS_NAVIGATION (element)) {
++      GdkEvent *event = _get_current_event (controller);
+       const gchar *key_type =
+-          event->type ==
+-          GDK_BUTTON_PRESS ? "mouse-button-press" : "mouse-button-release";
+-      gdouble x, y;
++          gdk_event_get_event_type (event) == GDK_BUTTON_PRESS
++          ? "mouse-button-press" : "mouse-button-release";
++      gdouble stream_x, stream_y;
++#if !defined(BUILD_FOR_GTK4)
++      guint button;
++      gdk_event_get_button (event, &button);
++#endif
+ 
+-      _display_size_to_stream_size (base_widget, event->x, event->y, &x, &y);
++      _display_size_to_stream_size (base_widget, x, y, &stream_x, &stream_y);
+ 
+       gst_navigation_send_mouse_event (GST_NAVIGATION (element), key_type,
+-          event->button, x, y);
++#if defined(BUILD_FOR_GTK4)
++          /* Gesture is set to ignore other buttons so we do not have to check */
++          GDK_BUTTON_PRIMARY,
++#else
++          button,
++#endif
++          stream_x, stream_y);
++
++      _gdk_event_free (event);
+     }
+     g_object_unref (element);
+   }
+@@ -349,19 +411,22 @@ gtk_gst_base_widget_button_event (GtkWidget * widget, 
+ }
+ 
+ static gboolean
+-gtk_gst_base_widget_motion_event (GtkWidget * widget, GdkEventMotion * event)
++gtk_gst_base_widget_motion_event (GtkEventControllerMotion * motion_controller,
++    gdouble x, gdouble y)
+ {
++  GtkEventController *controller = GTK_EVENT_CONTROLLER (motion_controller);
++  GtkWidget *widget = gtk_event_controller_get_widget (controller);
+   GtkGstBaseWidget *base_widget = GTK_GST_BASE_WIDGET (widget);
+   GstElement *element;
+ 
+   if ((element = g_weak_ref_get (&base_widget->element))) {
+     if (GST_IS_NAVIGATION (element)) {
+-      gdouble x, y;
++      gdouble stream_x, stream_y;
+ 
+-      _display_size_to_stream_size (base_widget, event->x, event->y, &x, &y);
++      _display_size_to_stream_size (base_widget, x, y, &stream_x, &stream_y);
+ 
+       gst_navigation_send_mouse_event (GST_NAVIGATION (element), "mouse-move",
+-          0, x, y);
++          0, stream_x, stream_y);
+     }
+     g_object_unref (element);
+   }
+@@ -395,23 +460,20 @@ gtk_gst_base_widget_class_init (GtkGstBaseWidgetClass 
+           "When enabled, alpha will be ignored and converted to black",
+           DEFAULT_IGNORE_ALPHA, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ 
++#if defined(BUILD_FOR_GTK4)
++  widget_klass->measure = gtk_gst_base_widget_measure;
++#else
+   widget_klass->get_preferred_width = gtk_gst_base_widget_get_preferred_width;
+   widget_klass->get_preferred_height = gtk_gst_base_widget_get_preferred_height;
+-  widget_klass->key_press_event = gtk_gst_base_widget_key_event;
+-  widget_klass->key_release_event = gtk_gst_base_widget_key_event;
+-  widget_klass->button_press_event = gtk_gst_base_widget_button_event;
+-  widget_klass->button_release_event = gtk_gst_base_widget_button_event;
+-  widget_klass->motion_notify_event = gtk_gst_base_widget_motion_event;
++#endif
+ 
+   GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_base_widget, "gtkbasewidget", 0,
+-      "Gtk Video Base Widget");
++      "GTK Video Base Widget");
+ }
+ 
+ void
+ gtk_gst_base_widget_init (GtkGstBaseWidget * widget)
+ {
+-  int event_mask;
+-
+   widget->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
+   widget->par_n = DEFAULT_PAR_N;
+   widget->par_d = DEFAULT_PAR_D;
+@@ -423,20 +485,66 @@ gtk_gst_base_widget_init (GtkGstBaseWidget * widget)
+   g_weak_ref_init (&widget->element, NULL);
+   g_mutex_init (&widget->lock);
+ 
++  widget->key_controller = gtk_event_controller_key_new (
++#if !defined(BUILD_FOR_GTK4)
++      GTK_WIDGET (widget)
++#endif
++      );
++  g_signal_connect (widget->key_controller, "key-pressed",
++      G_CALLBACK (gtk_gst_base_widget_key_event), NULL);
++  g_signal_connect (widget->key_controller, "key-released",
++      G_CALLBACK (gtk_gst_base_widget_key_event), NULL);
++
++  widget->motion_controller = gtk_event_controller_motion_new (
++#if !defined(BUILD_FOR_GTK4)
++      GTK_WIDGET (widget)
++#endif
++      );
++  g_signal_connect (widget->motion_controller, "motion",
++      G_CALLBACK (gtk_gst_base_widget_motion_event), NULL);
++
++  widget->click_gesture =
++#if defined(BUILD_FOR_GTK4)
++      gtk_gesture_click_new ();
++#else
++      gtk_gesture_multi_press_new (GTK_WIDGET (widget));
++#endif
++  g_signal_connect (widget->click_gesture, "pressed",
++      G_CALLBACK (gtk_gst_base_widget_button_event), NULL);
++  g_signal_connect (widget->click_gesture, "released",
++      G_CALLBACK (gtk_gst_base_widget_button_event), NULL);
++
++#if defined(BUILD_FOR_GTK4)
++  /* Otherwise widget in grid will appear as a 1x1px
++   * video which might be misleading for users */
++  gtk_widget_set_hexpand (GTK_WIDGET (widget), TRUE);
++  gtk_widget_set_vexpand (GTK_WIDGET (widget), TRUE);
++
++  gtk_widget_set_focusable (GTK_WIDGET (widget), TRUE);
++  gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (widget->click_gesture),
++      GDK_BUTTON_PRIMARY);
++
++  gtk_widget_add_controller (GTK_WIDGET (widget), widget->key_controller);
++  gtk_widget_add_controller (GTK_WIDGET (widget), widget->motion_controller);
++  gtk_widget_add_controller (GTK_WIDGET (widget),
++      GTK_EVENT_CONTROLLER (widget->click_gesture));
++#endif
++
+   gtk_widget_set_can_focus (GTK_WIDGET (widget), TRUE);
+-  event_mask = gtk_widget_get_events (GTK_WIDGET (widget));
+-  event_mask |= GDK_KEY_PRESS_MASK
+-      | GDK_KEY_RELEASE_MASK
+-      | GDK_BUTTON_PRESS_MASK
+-      | GDK_BUTTON_RELEASE_MASK
+-      | GDK_POINTER_MOTION_MASK | GDK_BUTTON_MOTION_MASK;
+-  gtk_widget_set_events (GTK_WIDGET (widget), event_mask);
+ }
+ 
+ void
+ gtk_gst_base_widget_finalize (GObject * object)
+ {
+   GtkGstBaseWidget *widget = GTK_GST_BASE_WIDGET (object);
++
++  /* GTK4 takes ownership of EventControllers
++   * while GTK3 still needs manual unref */
++#if !defined(BUILD_FOR_GTK4)
++  g_object_unref (widget->key_controller);
++  g_object_unref (widget->motion_controller);
++  g_object_unref (widget->click_gesture);
++#endif
+ 
+   gst_buffer_replace (&widget->pending_buffer, NULL);
+   gst_buffer_replace (&widget->buffer, NULL);
+--- ext/gtk/gtkgstbasewidget.h.orig	2019-12-03 11:06:37 UTC
++++ ext/gtk/gtkgstbasewidget.h
+@@ -1,6 +1,7 @@
+ /*
+  * GStreamer
+  * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
++ * Copyright (C) 2020 Rafał Dzięgiel <rafostar.github@gmail.com>
+  *
+  * This library is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Library General Public
+@@ -25,6 +26,10 @@
+ #include <gst/gst.h>
+ #include <gst/video/video.h>
+ 
++#if !defined(BUILD_FOR_GTK4)
++#include <gdk/gdk.h>
++#endif
++
+ #define GTK_GST_BASE_WIDGET(w)         ((GtkGstBaseWidget *)(w))
+ #define GTK_GST_BASE_WIDGET_CLASS(k)   ((GtkGstBaseWidgetClass *)(k))
+ #define GTK_GST_BASE_WIDGET_LOCK(w)    g_mutex_lock(&((GtkGstBaseWidget*)(w))->lock)
+@@ -39,9 +44,7 @@ struct _GtkGstBaseWidget
+ {
+   union {
+     GtkDrawingArea drawing_area;
+-#if GTK_CHECK_VERSION(3, 15, 0)
+     GtkGLArea gl_area;
+-#endif
+   } parent;
+ 
+   /* properties */
+@@ -67,6 +70,11 @@ struct _GtkGstBaseWidget
+   GMutex lock;
+   GWeakRef element;
+ 
++  /* event controllers */
++  GtkEventController *key_controller;
++  GtkEventController *motion_controller;
++  GtkGesture *click_gesture;
++
+   /* Pending draw idles callback */
+   guint draw_id;
+ };
+@@ -75,9 +83,7 @@ struct _GtkGstBaseWidgetClass
+ {
+   union {
+     GtkDrawingAreaClass drawing_area_class;
+-#if GTK_CHECK_VERSION(3, 15, 0)
+     GtkGLAreaClass gl_area_class;
+-#endif
+   } parent_class;
+ };
+ 
+--- ext/gtk/gtkgstglwidget.c.orig	2019-12-03 11:06:37 UTC
++++ ext/gtk/gtkgstglwidget.c
+@@ -1,6 +1,7 @@
+ /*
+  * GStreamer
+  * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
++ * Copyright (C) 2020 Rafał Dzięgiel <rafostar.github@gmail.com>
+  *
+  * This library is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Library General Public
+@@ -30,12 +31,20 @@
*** 272 LINES SKIPPED ***



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