plugin: Add "clapperdmabufimport" element

Use brand new clapper video sink for video output. Also add "CLAPPER_USE_LEGACY_SINK" env
to still allow the usage of old video sink if any problems arise.

.github/workflows/flatpak-nightly.yml

@@ -1,4 +1,5 @@
 on:
+  workflow_dispatch:
   schedule:
     - cron: "0 0 * * *"
 name: "Flatpak Nightly"
@@ -25,8 +26,12 @@ jobs:
       uses: docker/setup-qemu-action@v1
       with:
         platforms: arm64
+    - name: Prepare Runtime
+      run: |
+        flatpak --system install -y --noninteractive flathub org.freedesktop.Sdk.Extension.rust-nightly/${{ matrix.arch }}/21.08
+        flatpak --system install -y --noninteractive flathub org.freedesktop.Sdk.Extension.llvm13/${{ matrix.arch }}/21.08
     - uses: bilelmoussaoui/flatpak-github-actions/flatpak-builder@v4
-      name: "Build"
+      name: Build
       with:
         bundle: com.github.rafostar.Clapper.flatpak
         manifest-path: pkgs/flatpak/com.github.rafostar.Clapper-nightly.json

.github/workflows/flatpak.yml

@@ -1,4 +1,5 @@
 on:
+  workflow_dispatch:
   push:
     branches:
       - master
@@ -11,7 +12,7 @@ jobs:
     name: "Flatpak"
     runs-on: ubuntu-latest
     container:
-      image: bilelmoussaoui/flatpak-github-actions:gnome-40
+      image: bilelmoussaoui/flatpak-github-actions:gnome-42
       options: --privileged
     strategy:
       matrix:

README.md

@@ -2,6 +2,8 @@
 [![Flatpak](https://github.com/Rafostar/clapper/actions/workflows/flatpak.yml/badge.svg?event=push)](https://github.com/Rafostar/clapper/actions/workflows/flatpak.yml)
 [![Flatpak Nightly](https://github.com/Rafostar/clapper/actions/workflows/flatpak-nightly.yml/badge.svg?event=schedule)](https://github.com/Rafostar/clapper/actions/workflows/flatpak-nightly.yml)
 [![Crowdin](https://badges.crowdin.net/clapper/localized.svg)](https://crowdin.com/project/clapper)
+[![Matrix](https://img.shields.io/matrix/clapper-player:matrix.org?label=matrix)](https://matrix.to/#/#clapper-player:matrix.org)
+[![Donate](https://img.shields.io/liberapay/receives/Clapper.svg?logo=liberapay)](https://liberapay.com/Clapper)
 
 A GNOME media player built using [GJS](https://gitlab.gnome.org/GNOME/gjs) with [GTK4](https://www.gtk.org) toolkit.
 The media player uses [GStreamer](https://gstreamer.freedesktop.org/) as a media backend and renders everything via [OpenGL](https://www.opengl.org).
@@ -38,17 +40,13 @@ List of patches used in this version can be found [here](https://github.com/Rafo
   <img width='240' alt='Download on Flathub' src='https://flathub.org/assets/badges/flathub-badge-en.png'/>
 </a>
 
-## Packages
-#### Fedora & openSUSE
-Pre-built packages are available in [my repo](https://software.opensuse.org//download.html?project=home%3ARafostar&package=clapper) ([see status](https://build.opensuse.org/package/show/home:Rafostar/clapper)).<br>
-Those are automatically built on each git commit, and are thus considered unstable.
+## Packages in Linux Distributions
+[![Packaging status](https://repology.org/badge/vertical-allrepos/clapper.svg)](https://repology.org/project/clapper/versions)
 
-#### Arch Linux
-You can get Clapper from the AUR:
-* [clapper](https://aur.archlinux.org/packages/clapper) (stable version)
-* [clapper-git](https://aur.archlinux.org/packages/clapper-git)
+Pre-built RPM packages are also available in [my repo](https://software.opensuse.org//download.html?project=home%3ARafostar&package=clapper) ([see status](https://build.opensuse.org/package/show/home:Rafostar/clapper)).<br>
+Those are automatically built on each git commit, thus are considered unstable.
 
-## Installation from source code
+## Installation from Source Code
 ```sh
 meson builddir --prefix=/usr/local
 sudo meson install -C builddir

bin/com.github.rafostar.Clapper.in

@@ -6,4 +6,4 @@ imports.package.init({
   prefix: '@prefix@',
   libdir: '@libdir@',
 });
-imports.package.run(imports.src.main@ID_POSTFIX@);
+imports.package.run(imports.src.main);

bin/meson.build

@@ -1,25 +1,19 @@
-clapper_apps = ['', 'Remote', 'Daemon']
+bin_conf = configuration_data()
 
-foreach id_postfix : clapper_apps
-  app_postfix = (id_postfix != '') ? '.' + id_postfix : ''
+bin_conf.set('GJS', find_program('gjs').path())
+bin_conf.set('PACKAGE_NAME', meson.project_name())
+bin_conf.set('PACKAGE_VERSION', meson.project_version())
+bin_conf.set('prefix', get_option('prefix'))
+bin_conf.set('libdir', libdir)
 
-  bin_conf = configuration_data()
-  bin_conf.set('GJS', find_program('gjs').path())
-  bin_conf.set('PACKAGE_NAME', meson.project_name())
-  bin_conf.set('PACKAGE_VERSION', meson.project_version())
-  bin_conf.set('ID_POSTFIX', id_postfix)
-  bin_conf.set('prefix', get_option('prefix'))
-  bin_conf.set('libdir', libdir)
-
-  configure_file(
-    input: 'com.github.rafostar.Clapper.in',
-    output: 'com.github.rafostar.Clapper' + app_postfix,
-    configuration: bin_conf,
-    install: true,
-    install_dir: bindir,
-    install_mode: 'rwxr-xr-x'
-  )
-endforeach
+configure_file(
+  input: 'com.github.rafostar.Clapper.in',
+  output: 'com.github.rafostar.Clapper',
+  configuration: bin_conf,
+  install: true,
+  install_dir: bindir,
+  install_mode: 'rwxr-xr-x'
+)
 
 clapper_symlink_cmd = 'ln -fs @0@ $DESTDIR@1@'.format(
   'com.github.rafostar.Clapper',

data/com.github.rafostar.Clapper.gschema.xml

@@ -103,16 +103,6 @@
       <summary>Set PlayFlags for playbin</summary>
     </key>
 
-    <!-- YouTube -->
-    <key name="yt-adaptive-enabled" type="b">
-      <default>false</default>
-      <summary>Enable to use adaptive streaming for YouTube</summary>
-    </key>
-    <key name="yt-quality-type" type="i">
-      <default>1</default>
-      <summary>Max YouTube video quality type</summary>
-    </key>
-
     <!-- Other -->
     <key name="window-size" type="s">
       <default>'[800, 490]'</default>

lib/gst/clapper/gstclapper.c

@@ -152,7 +152,7 @@ struct _GstClapper
   GstBus *bus;
   GstState target_state, current_state;
   gboolean is_live;
-  GSource *tick_source, *ready_timeout_source;
+  GSource *tick_source;
   GstClockTime cached_duration;
 
   gdouble rate;
@@ -1138,44 +1138,6 @@ remove_tick_source (GstClapper * self)
   self->tick_source = NULL;
 }
 
-static gboolean
-ready_timeout_cb (gpointer user_data)
-{
-  GstClapper *self = user_data;
-
-  if (self->target_state <= GST_STATE_READY) {
-    GST_DEBUG_OBJECT (self, "Setting pipeline to NULL state");
-    self->target_state = GST_STATE_NULL;
-    self->current_state = GST_STATE_NULL;
-    gst_element_set_state (self->playbin, GST_STATE_NULL);
-  }
-
-  return G_SOURCE_REMOVE;
-}
-
-static void
-add_ready_timeout_source (GstClapper * self)
-{
-  if (self->ready_timeout_source)
-    return;
-
-  self->ready_timeout_source = g_timeout_source_new_seconds (60);
-  g_source_set_callback (self->ready_timeout_source,
-      (GSourceFunc) ready_timeout_cb, self, NULL);
-  g_source_attach (self->ready_timeout_source, self->context);
-}
-
-static void
-remove_ready_timeout_source (GstClapper * self)
-{
-  if (!self->ready_timeout_source)
-    return;
-
-  g_source_destroy (self->ready_timeout_source);
-  g_source_unref (self->ready_timeout_source);
-  self->ready_timeout_source = NULL;
-}
-
 typedef struct
 {
   GstClapper *clapper;
@@ -1220,7 +1182,6 @@ emit_error (GstClapper * self, GError * err)
   g_error_free (err);
 
   remove_tick_source (self);
-  remove_ready_timeout_source (self);
 
   self->target_state = GST_STATE_NULL;
   self->current_state = GST_STATE_NULL;
@@ -1868,10 +1829,12 @@ media_info_update (GstClapper * self, GstClapperMediaInfo * info)
 static void
 merge_tags (GstTagList **my_tags, GstTagList *tags)
 {
-  if (*my_tags)
+  if (*my_tags) {
+    *my_tags = gst_tag_list_make_writable (*my_tags);
     gst_tag_list_insert (*my_tags, tags, GST_TAG_MERGE_REPLACE);
-  else
+  } else {
     *my_tags = gst_tag_list_ref (tags);
+  }
 }
 
 static void
@@ -3410,7 +3373,6 @@ gst_clapper_main (gpointer data)
   gst_object_unref (bus);
 
   remove_tick_source (self);
-  remove_ready_timeout_source (self);
 
   g_mutex_lock (&self->lock);
   if (self->media_info) {
@@ -3565,6 +3527,7 @@ _env_feature_rank_update (void)
               gst_plugin_feature_set_rank (feature, rank);
               GST_DEBUG ("Updated rank from env: %i -> %i for %s", old_rank, rank, name);
             }
+            gst_object_unref (feature);
           }
         }
       }
@@ -3677,7 +3640,6 @@ gst_clapper_play_internal (gpointer user_data)
   }
   g_mutex_unlock (&self->lock);
 
-  remove_ready_timeout_source (self);
   self->target_state = GST_STATE_PLAYING;
 
   if (self->current_state < GST_STATE_PAUSED)
@@ -3745,7 +3707,6 @@ gst_clapper_pause_internal (gpointer user_data)
 
   tick_cb (self);
   remove_tick_source (self);
-  remove_ready_timeout_source (self);
 
   self->target_state = GST_STATE_PAUSED;
 
@@ -3825,13 +3786,11 @@ gst_clapper_stop_internal (GstClapper * self, gboolean transient)
   tick_cb (self);
   remove_tick_source (self);
 
-  add_ready_timeout_source (self);
-
   self->target_state = GST_STATE_NULL;
-  self->current_state = GST_STATE_READY;
+  self->current_state = GST_STATE_NULL;
   self->is_live = FALSE;
   gst_bus_set_flushing (self->bus, TRUE);
-  gst_element_set_state (self->playbin, GST_STATE_READY);
+  gst_element_set_state (self->playbin, GST_STATE_NULL);
   gst_bus_set_flushing (self->bus, FALSE);
   change_state (self, transient && self->app_state != GST_CLAPPER_STATE_STOPPED
       ? GST_CLAPPER_STATE_BUFFERING : GST_CLAPPER_STATE_STOPPED);

lib/gst/clapper/meson.build

@@ -34,36 +34,13 @@ gstclapper_defines = [
   '-DGST_USE_UNSTABLE_API',
   '-DHAVE_GTK_GL',
 ]
-gtk_deps = [gstgl_dep, gstglproto_dep]
-have_gtk_gl_windowing = false
 
-gtk4_dep = dependency('gtk4', required: true)
-
-if not gtk4_dep.version().version_compare('>=4.0.0')
-  error('GTK4 version on this system is too old')
+if not get_option('lib')
+  subdir_done()
 endif
 
-if gst_gl_have_window_x11 and (gst_gl_have_platform_egl or gst_gl_have_platform_glx)
-  gtk_x11_dep = dependency('gtk4-x11', required: false)
-  if gtk_x11_dep.found()
-    gtk_deps += gtk_x11_dep
-    if gst_gl_have_platform_glx
-      gtk_deps += gstglx11_dep
-    endif
-    have_gtk_gl_windowing = true
-  endif
-endif
-
-if gst_gl_have_window_wayland and gst_gl_have_platform_egl
-  gtk_wayland_dep = dependency('gtk4-wayland', required: false)
-  if gtk_wayland_dep.found()
-    gtk_deps += [gtk_wayland_dep, gstglwayland_dep]
-    have_gtk_gl_windowing = true
-  endif
-endif
-
-if gst_gl_have_platform_egl
-  gtk_deps += gstglegl_dep
+if not gir.found()
+  error('Clapper lib requires GI bindings to be compiled')
 endif
 
 if not have_gtk_gl_windowing

lib/gst/meson.build

@@ -1 +1,2 @@
 subdir('clapper')
+subdir('plugin')

lib/gst/plugin/gstclapperbaseimport.c

@@ -0,0 +1,374 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstclapperbaseimport.h"
+#include "gstclappergdkmemory.h"
+#include "gstclappergdkbufferpool.h"
+
+#define GST_CAT_DEFAULT gst_clapper_base_import_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+#define parent_class gst_clapper_base_import_parent_class
+G_DEFINE_TYPE (GstClapperBaseImport, gst_clapper_base_import, GST_TYPE_BASE_TRANSFORM);
+
+static void
+gst_clapper_base_import_init (GstClapperBaseImport *self)
+{
+  g_mutex_init (&self->lock);
+
+  gst_video_info_init (&self->in_info);
+  gst_video_info_init (&self->out_info);
+}
+
+static void
+gst_clapper_base_import_finalize (GObject *object)
+{
+  GstClapperBaseImport *self = GST_CLAPPER_BASE_IMPORT_CAST (object);
+
+  GST_TRACE ("Finalize");
+  g_mutex_clear (&self->lock);
+
+  GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
+}
+
+static GstStateChangeReturn
+gst_clapper_base_import_change_state (GstElement *element, GstStateChange transition)
+{
+  GST_DEBUG_OBJECT (element, "Changing state: %s => %s",
+      gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
+      gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
+
+  return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+}
+
+static gboolean
+gst_clapper_base_import_start (GstBaseTransform *bt)
+{
+  GST_INFO_OBJECT (bt, "Start");
+
+  return TRUE;
+}
+
+static gboolean
+gst_clapper_base_import_stop (GstBaseTransform *bt)
+{
+  GST_INFO_OBJECT (bt, "Stop");
+
+  return TRUE;
+}
+
+static GstCaps *
+gst_clapper_base_import_transform_caps (GstBaseTransform *bt,
+    GstPadDirection direction, GstCaps *caps, GstCaps *filter)
+{
+  GstCaps *result, *tmp;
+
+  tmp = (direction == GST_PAD_SINK)
+      ? gst_pad_get_pad_template_caps (GST_BASE_TRANSFORM_SRC_PAD (bt))
+      : gst_pad_get_pad_template_caps (GST_BASE_TRANSFORM_SINK_PAD (bt));
+
+  if (filter) {
+    GST_DEBUG ("Intersecting with filter caps: %" GST_PTR_FORMAT, filter);
+    result = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
+    gst_caps_unref (tmp);
+  } else {
+    result = tmp;
+  }
+  GST_DEBUG ("Returning %s caps: %" GST_PTR_FORMAT,
+      (direction == GST_PAD_SINK) ? "src" : "sink", result);
+
+  return result;
+}
+
+static gboolean
+_structure_filter_cb (GQuark field_id, GValue *value,
+    G_GNUC_UNUSED gpointer user_data)
+{
+  const gchar *str = g_quark_to_string (field_id);
+
+  if (!strcmp (str, "format")
+      || !strcmp (str, "width")
+      || !strcmp (str, "height")
+      || !strcmp (str, "pixel-aspect-ratio")
+      || !strcmp (str, "framerate"))
+    return TRUE;
+
+  return FALSE;
+}
+
+static GstCaps *
+gst_clapper_base_import_fixate_caps (GstBaseTransform *bt,
+    GstPadDirection direction, GstCaps *caps, GstCaps *othercaps)
+{
+  GstCaps *fixated;
+
+  fixated = (!gst_caps_is_any (caps))
+      ? gst_caps_fixate (gst_caps_ref (caps))
+      : gst_caps_copy (caps);
+
+  if (direction == GST_PAD_SINK) {
+    guint i, n = gst_caps_get_size (fixated);
+
+    for (i = 0; i < n; i++) {
+      GstCapsFeatures *features;
+      GstStructure *structure;
+      gboolean had_overlay_comp;
+
+      features = gst_caps_get_features (fixated, i);
+      had_overlay_comp = gst_caps_features_contains (features,
+          GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
+
+      features = gst_caps_features_new (GST_CAPS_FEATURE_CLAPPER_GDK_MEMORY, NULL);
+      if (had_overlay_comp)
+        gst_caps_features_add (features, GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
+
+      gst_caps_set_features (fixated, i, features);
+
+      /* Remove fields that do not apply to our memory */
+      if ((structure = gst_caps_get_structure (fixated, i))) {
+        gst_structure_filter_and_map_in_place (structure,
+            (GstStructureFilterMapFunc) _structure_filter_cb, NULL);
+      }
+    }
+  }
+  GST_DEBUG ("Fixated %s caps: %" GST_PTR_FORMAT,
+      (direction == GST_PAD_SRC) ? "sink" : "src", fixated);
+
+  return fixated;
+}
+
+static gboolean
+gst_clapper_base_import_set_caps (GstBaseTransform *bt,
+    GstCaps *incaps, GstCaps *outcaps)
+{
+  GstClapperBaseImport *self = GST_CLAPPER_BASE_IMPORT_CAST (bt);
+  gboolean has_sink_info, has_src_info;
+
+  if ((has_sink_info = gst_video_info_from_caps (&self->in_info, incaps)))
+    GST_INFO_OBJECT (self, "Set sink caps: %" GST_PTR_FORMAT, incaps);
+  if ((has_src_info = gst_video_info_from_caps (&self->out_info, outcaps)))
+    GST_INFO_OBJECT (self, "Set src caps: %" GST_PTR_FORMAT, outcaps);
+
+  return (has_sink_info && has_src_info);
+}
+
+static gboolean
+gst_clapper_base_import_import_propose_allocation (GstBaseTransform *bt,
+    GstQuery *decide_query, GstQuery *query)
+{
+  GstClapperBaseImport *self = GST_CLAPPER_BASE_IMPORT_CAST (bt);
+  GstClapperBaseImportClass *bi_class = GST_CLAPPER_BASE_IMPORT_GET_CLASS (self);
+  GstBufferPool *pool = NULL;
+  GstCaps *caps;
+  GstVideoInfo info;
+  guint size;
+  gboolean need_pool;
+
+  if (!GST_BASE_TRANSFORM_CLASS (parent_class)->propose_allocation (bt,
+      decide_query, query))
+    return FALSE;
+
+  /* Passthrough, nothing to do */
+  if (!decide_query)
+    return TRUE;
+
+  gst_query_parse_allocation (query, &caps, &need_pool);
+
+  if (!caps) {
+    GST_DEBUG_OBJECT (self, "No caps specified");
+    return FALSE;
+  }
+
+  if (!gst_video_info_from_caps (&info, caps)) {
+    GST_DEBUG_OBJECT (self, "Invalid caps specified");
+    return FALSE;
+  }
+
+  /* Normal size of a frame */
+  size = GST_VIDEO_INFO_SIZE (&info);
+
+  if (need_pool) {
+    GstStructure *config = NULL;
+
+    GST_DEBUG_OBJECT (self, "Need to create upstream pool");
+    pool = bi_class->create_upstream_pool (self, &config);
+
+    if (pool) {
+      /* If we did not get config, use default one */
+      if (!config)
+        config = gst_buffer_pool_get_config (pool);
+
+      gst_buffer_pool_config_set_params (config, caps, size, 2, 0);
+
+      if (!gst_buffer_pool_set_config (pool, config)) {
+        gst_object_unref (pool);
+
+        GST_DEBUG_OBJECT (self, "Failed to set config");
+        return FALSE;
+      }
+    } else if (config) {
+      GST_WARNING_OBJECT (self, "Got pool config without a pool to apply it!");
+      gst_structure_free (config);
+    }
+  }
+
+  gst_query_add_allocation_pool (query, pool, size, 2, 0);
+  if (pool)
+    gst_object_unref (pool);
+
+  gst_query_add_allocation_meta (query,
+      GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
+  gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
+
+  return TRUE;
+}
+
+static gboolean
+gst_clapper_base_import_decide_allocation (GstBaseTransform *bt, GstQuery *query)
+{
+  GstClapperBaseImport *self = GST_CLAPPER_BASE_IMPORT_CAST (bt);
+  GstBufferPool *pool = NULL;
+  GstCaps *caps;
+  GstVideoInfo info;
+  guint size = 0, min = 0, max = 0;
+  gboolean update_pool, need_pool = TRUE;
+
+  gst_query_parse_allocation (query, &caps, NULL);
+
+  if (!caps) {
+    GST_DEBUG_OBJECT (self, "No caps specified");
+    return FALSE;
+  }
+
+  if (!gst_video_info_from_caps (&info, caps)) {
+    GST_DEBUG_OBJECT (self, "Invalid caps specified");
+    return FALSE;
+  }
+
+  if ((update_pool = gst_query_get_n_allocation_pools (query) > 0)) {
+    gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
+    if (pool) {
+      if ((need_pool = !GST_IS_CLAPPER_GDK_BUFFER_POOL (pool)))
+        gst_clear_object (&pool);
+    }
+  } else {
+    size = GST_VIDEO_INFO_SIZE (&info);
+  }
+
+  if (need_pool) {
+    GstStructure *config;
+
+    GST_DEBUG_OBJECT (self, "Creating new downstream pool");
+
+    pool = gst_clapper_gdk_buffer_pool_new ();
+    config = gst_buffer_pool_get_config (pool);
+
+    gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
+    gst_buffer_pool_config_set_params (config, caps, size, min, max);
+
+    if (!gst_buffer_pool_set_config (pool, config)) {
+      gst_object_unref (pool);
+
+      GST_DEBUG_OBJECT (self, "Failed to set config");
+      return FALSE;
+    }
+  }
+
+  if (update_pool)
+    gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
+  else
+    gst_query_add_allocation_pool (query, pool, size, min, max);
+
+  if (pool)
+    gst_object_unref (pool);
+
+  return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (bt, query);
+}
+
+static GstBufferPool *
+gst_clapper_base_import_create_upstream_pool (GstClapperBaseImport *self, GstStructure **config)
+{
+  GST_FIXME_OBJECT (self, "Need to create upstream buffer pool");
+
+  return NULL;
+}
+
+static void
+gst_clapper_base_import_class_init (GstClapperBaseImportClass *klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *) klass;
+  GstElementClass *gstelement_class = (GstElementClass *) klass;
+  GstBaseTransformClass *gstbasetransform_class = (GstBaseTransformClass *) klass;
+  GstClapperBaseImportClass *bi_class = (GstClapperBaseImportClass *) klass;
+
+  GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clapperbaseimport", 0,
+      "Clapper Base Import");
+
+  gobject_class->finalize = gst_clapper_base_import_finalize;
+
+  gstelement_class->change_state = gst_clapper_base_import_change_state;
+
+  gstbasetransform_class->passthrough_on_same_caps = TRUE;
+  gstbasetransform_class->transform_ip_on_passthrough = FALSE;
+  gstbasetransform_class->start = gst_clapper_base_import_start;
+  gstbasetransform_class->stop = gst_clapper_base_import_stop;
+  gstbasetransform_class->transform_caps = gst_clapper_base_import_transform_caps;
+  gstbasetransform_class->fixate_caps = gst_clapper_base_import_fixate_caps;
+  gstbasetransform_class->set_caps = gst_clapper_base_import_set_caps;
+  gstbasetransform_class->propose_allocation = gst_clapper_base_import_import_propose_allocation;
+  gstbasetransform_class->decide_allocation = gst_clapper_base_import_decide_allocation;
+
+  bi_class->create_upstream_pool = gst_clapper_base_import_create_upstream_pool;
+}
+
+/*
+ * Maps input video frame and output memory from in/out buffers
+ * using flags passed to this method.
+ *
+ * Remember to unmap both using `gst_video_frame_unmap` and
+ * `gst_memory_unmap` when done with the data.
+ */
+gboolean
+gst_clapper_base_import_map_buffers (GstClapperBaseImport *self,
+    GstBuffer *in_buf, GstBuffer *out_buf, GstMapFlags in_flags, GstMapFlags out_flags,
+    GstVideoFrame *frame, GstMapInfo *info, GstMemory **mem)
+{
+  GST_LOG_OBJECT (self, "Transforming from %" GST_PTR_FORMAT
+      " into %" GST_PTR_FORMAT, in_buf, out_buf);
+
+  if (G_UNLIKELY (!gst_video_frame_map (frame, &self->in_info, in_buf, in_flags))) {
+    GST_ERROR_OBJECT (self, "Could not map input buffer for reading");
+    return FALSE;
+  }
+
+  *mem = gst_buffer_peek_memory (out_buf, 0);
+
+  if (G_UNLIKELY (!gst_memory_map (*mem, info, out_flags))) {
+    GST_ERROR_OBJECT (self, "Could not map output memory for writing");
+    gst_video_frame_unmap (frame);
+
+    return FALSE;
+  }
+
+  return TRUE;
+}

lib/gst/plugin/gstclapperbaseimport.h

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <gst/base/gstbasetransform.h>
+#include <gst/video/video.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CLAPPER_BASE_IMPORT               (gst_clapper_base_import_get_type())
+#define GST_IS_CLAPPER_BASE_IMPORT(obj)            (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_CLAPPER_BASE_IMPORT))
+#define GST_IS_CLAPPER_BASE_IMPORT_CLASS(klass)    (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_CLAPPER_BASE_IMPORT))
+#define GST_CLAPPER_BASE_IMPORT_GET_CLASS(obj)     (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_CLAPPER_BASE_IMPORT, GstClapperBaseImportClass))
+#define GST_CLAPPER_BASE_IMPORT(obj)               (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_CLAPPER_BASE_IMPORT, GstClapperBaseImport))
+#define GST_CLAPPER_BASE_IMPORT_CLASS(klass)       (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_CLAPPER_BASE_IMPORT, GstClapperBaseImportClass))
+#define GST_CLAPPER_BASE_IMPORT_CAST(obj)          ((GstClapperBaseImport *)(obj))
+
+#define GST_CLAPPER_BASE_IMPORT_GET_LOCK(obj)      (&GST_CLAPPER_BASE_IMPORT_CAST(obj)->lock)
+#define GST_CLAPPER_BASE_IMPORT_LOCK(obj)          g_mutex_lock (GST_CLAPPER_BASE_IMPORT_GET_LOCK(obj))
+#define GST_CLAPPER_BASE_IMPORT_UNLOCK(obj)        g_mutex_unlock (GST_CLAPPER_BASE_IMPORT_GET_LOCK(obj))
+
+typedef struct _GstClapperBaseImport GstClapperBaseImport;
+typedef struct _GstClapperBaseImportClass GstClapperBaseImportClass;
+
+#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (GstClapperBaseImport, gst_object_unref)
+#endif
+
+struct _GstClapperBaseImport
+{
+  GstBaseTransform parent;
+
+  GMutex lock;
+
+  GstVideoInfo in_info, out_info;
+};
+
+struct _GstClapperBaseImportClass
+{
+  GstBaseTransformClass parent_class;
+
+  GstBufferPool * (* create_upstream_pool) (GstClapperBaseImport *bi,
+                                            GstStructure        **config);
+};
+
+GType gst_clapper_base_import_get_type (void);
+
+gboolean gst_clapper_base_import_map_buffers (GstClapperBaseImport *bi,
+    GstBuffer *in_buf, GstBuffer *out_buf, GstMapFlags in_flags, GstMapFlags out_flags,
+    GstVideoFrame *frame, GstMapInfo *info, GstMemory **mem);
+
+G_END_DECLS

lib/gst/plugin/gstclapperdmabufbaseimport.c

@@ -0,0 +1,464 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gtk/gtk.h>
+#include <gst/allocators/gstdmabuf.h>
+#include <gst/gl/egl/gsteglimage.h>
+
+#include "gstclapperdmabufbaseimport.h"
+#include "gstgtkutils.h"
+
+#define GST_CAT_DEFAULT gst_clapper_dmabuf_base_import_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+static const GLfloat vertices[] = {
+  1.0f, 1.0f, 0.0f, 1.0f, 0.0f,
+  -1.0f, 1.0f, 0.0f, 0.0f, 0.0f,
+  -1.0f, -1.0f, 0.0f, 0.0f, 1.0f,
+  1.0f, -1.0f, 0.0f, 1.0f, 1.0f
+};
+static const GLushort indices[] = {
+  0, 1, 2, 0, 2, 3
+};
+
+/* GTK4 renders things upside down ¯\_(ツ)_/¯ */
+static const gfloat vertical_flip_matrix[] = {
+  1.0f, 0.0f, 0.0f, 0.0f,
+  0.0f, -1.0f, 0.0f, 0.0f,
+  0.0f, 0.0f, 1.0f, 0.0f,
+  0.0f, 0.0f, 0.0f, 1.0f,
+};
+
+typedef struct
+{
+  GstClapperDmabufBaseImport *dmabuf_bi;
+  GLuint id;
+  guint width;
+  guint height;
+} GstClapperDmabufTexData;
+
+#define parent_class gst_clapper_dmabuf_base_import_parent_class
+G_DEFINE_TYPE (GstClapperDmabufBaseImport, gst_clapper_dmabuf_base_import, GST_TYPE_CLAPPER_GL_BASE_IMPORT);
+
+static void
+gst_clapper_dmabuf_base_import_init (GstClapperDmabufBaseImport *self)
+{
+  g_mutex_init (&self->lock);
+
+  self->gst_tex_target = GST_GL_TEXTURE_TARGET_EXTERNAL_OES;
+  self->gl_tex_target = gst_gl_texture_target_to_gl (self->gst_tex_target);
+}
+
+static void
+gst_clapper_dmabuf_base_import_finalize (GObject *object)
+{
+  GstClapperDmabufBaseImport *self = GST_CLAPPER_DMABUF_BASE_IMPORT_CAST (object);
+
+  gst_clear_object (&self->shader);
+
+  g_mutex_clear (&self->lock);
+
+  GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
+}
+
+static void
+gst_clapper_dmabuf_base_import_bind_buffer (GstClapperDmabufBaseImport *self)
+{
+  GstClapperGLBaseImport *gl_bi = GST_CLAPPER_GL_BASE_IMPORT_CAST (self);
+  const GstGLFuncs *gl = gl_bi->gst_context->gl_vtable;
+
+  gl->BindBuffer (GL_ARRAY_BUFFER, self->vertex_buffer);
+
+  /* Load the vertex position */
+  gl->VertexAttribPointer (self->attr_position, 3, GL_FLOAT, GL_FALSE,
+      5 * sizeof (GLfloat), (void *) 0);
+
+  /* Load the texture coordinate */
+  gl->VertexAttribPointer (self->attr_texture, 2, GL_FLOAT, GL_FALSE,
+      5 * sizeof (GLfloat), (void *) (3 * sizeof (GLfloat)));
+
+  gl->EnableVertexAttribArray (self->attr_position);
+  gl->EnableVertexAttribArray (self->attr_texture);
+}
+
+static void
+gst_clapper_dmabuf_base_import_unbind_buffer (GstClapperDmabufBaseImport *self)
+{
+  GstClapperGLBaseImport *gl_bi = GST_CLAPPER_GL_BASE_IMPORT_CAST (self);
+  const GstGLFuncs *gl = gl_bi->gst_context->gl_vtable;
+
+  gl->BindBuffer (GL_ARRAY_BUFFER, 0);
+  gl->DisableVertexAttribArray (self->attr_position);
+  gl->DisableVertexAttribArray (self->attr_texture);
+}
+
+static gboolean
+prepare_on_main (GstClapperDmabufBaseImport *self)
+{
+  GstClapperGLBaseImport *gl_bi = GST_CLAPPER_GL_BASE_IMPORT_CAST (self);
+  GstGLSLStage *frag_stage, *vert_stage;
+  GError *error = NULL;
+  gchar *frag_str;
+  const GstGLFuncs *gl;
+
+  GST_CLAPPER_GL_BASE_IMPORT_LOCK (gl_bi);
+
+  gdk_gl_context_make_current (gl_bi->gdk_context);
+  gst_gl_context_activate (gl_bi->gst_context, TRUE);
+
+  if (!((vert_stage = gst_glsl_stage_new_with_string (gl_bi->gst_context,
+      GL_VERTEX_SHADER, GST_GLSL_VERSION_NONE,
+      GST_GLSL_PROFILE_ES | GST_GLSL_PROFILE_COMPATIBILITY,
+      gst_gl_shader_string_vertex_mat4_vertex_transform)))) {
+    gdk_gl_context_make_current (gl_bi->gdk_context);
+    gst_gl_context_activate (gl_bi->gst_context, TRUE);
+
+    GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (gl_bi);
+    GST_ERROR ("Failed to retrieve vertex shader for texture target");
+
+    return FALSE;
+  }
+
+  frag_str = gst_gl_shader_string_fragment_external_oes_get_default (
+      gl_bi->gst_context, GST_GLSL_VERSION_NONE,
+      GST_GLSL_PROFILE_ES | GST_GLSL_PROFILE_COMPATIBILITY);
+  frag_stage = gst_glsl_stage_new_with_string (gl_bi->gst_context,
+      GL_FRAGMENT_SHADER, GST_GLSL_VERSION_NONE,
+      GST_GLSL_PROFILE_ES | GST_GLSL_PROFILE_COMPATIBILITY, frag_str);
+
+  g_free (frag_str);
+
+  if (!frag_stage) {
+    gst_gl_context_activate (gl_bi->gst_context, FALSE);
+    gdk_gl_context_clear_current ();
+
+    GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (gl_bi);
+    GST_ERROR ("Failed to retrieve fragment shader for texture target");
+
+    return FALSE;
+  }
+
+  GST_CLAPPER_DMABUF_BASE_IMPORT_LOCK (self);
+
+  if (!((self->shader = gst_gl_shader_new_link_with_stages (gl_bi->gst_context,
+      &error, vert_stage, frag_stage, NULL)))) {
+    GST_CLAPPER_DMABUF_BASE_IMPORT_UNLOCK (self);
+
+    gst_gl_context_activate (gl_bi->gst_context, FALSE);
+    gdk_gl_context_clear_current ();
+
+    GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (gl_bi);
+
+    GST_ERROR ("Failed to initialize shader: %s", error->message);
+    g_clear_error (&error);
+
+    return FALSE;
+  }
+
+  self->attr_position =
+      gst_gl_shader_get_attribute_location (self->shader, "a_position");
+  self->attr_texture =
+      gst_gl_shader_get_attribute_location (self->shader, "a_texcoord");
+
+  gl = gl_bi->gst_context->gl_vtable;
+
+  if (gl->GenVertexArrays) {
+    gl->GenVertexArrays (1, &self->vao);
+    gl->BindVertexArray (self->vao);
+  }
+
+  gl->GenBuffers (1, &self->vertex_buffer);
+  gl->BindBuffer (GL_ARRAY_BUFFER, self->vertex_buffer);
+  gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), vertices, GL_STATIC_DRAW);
+
+  if (gl->GenVertexArrays) {
+    gst_clapper_dmabuf_base_import_bind_buffer (self);
+    gl->BindVertexArray (0);
+  }
+
+  gl->BindBuffer (GL_ARRAY_BUFFER, 0);
+  self->prepared = TRUE;
+
+  GST_CLAPPER_DMABUF_BASE_IMPORT_UNLOCK (self);
+
+  gst_gl_context_activate (gl_bi->gst_context, FALSE);
+  gdk_gl_context_clear_current ();
+
+  GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (gl_bi);
+
+  return TRUE;
+}
+
+static gboolean
+ensure_prepared (GstClapperDmabufBaseImport *self)
+{
+  GST_CLAPPER_DMABUF_BASE_IMPORT_LOCK (self);
+
+  if (self->prepared) {
+    GST_CLAPPER_DMABUF_BASE_IMPORT_UNLOCK (self);
+
+    return TRUE;
+  }
+
+  if (self->gst_tex_target != GST_GL_TEXTURE_TARGET_EXTERNAL_OES) {
+    /* We do not need shaders if texture target is 2D */
+    self->prepared = TRUE;
+    GST_CLAPPER_DMABUF_BASE_IMPORT_UNLOCK (self);
+
+    return TRUE;
+  }
+
+  GST_CLAPPER_DMABUF_BASE_IMPORT_UNLOCK (self);
+
+  if (!(! !gst_gtk_invoke_on_main (
+      (GThreadFunc) (GCallback) prepare_on_main, self))) {
+    GST_ERROR_OBJECT (self, "Could not ensure prepared");
+
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+static GstStateChangeReturn
+gst_clapper_dmabuf_base_import_change_state (GstElement *element, GstStateChange transition)
+{
+  GstClapperDmabufBaseImport *self = GST_CLAPPER_DMABUF_BASE_IMPORT_CAST (element);
+  GstStateChangeReturn ret;
+
+  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+  if (ret == GST_STATE_CHANGE_FAILURE)
+    return ret;
+
+  switch (transition) {
+    case GST_STATE_CHANGE_NULL_TO_READY:
+      if (!ensure_prepared (self))
+        return GST_STATE_CHANGE_FAILURE;
+      break;
+    default:
+      break;
+  }
+
+  return ret;
+}
+
+static gboolean
+_dmabuf_into_texture (GstClapperDmabufBaseImport *self, gint *fds, GstVideoInfo *v_info,
+    gsize *offsets, GstClapperDmabufTexData *tex_data)
+{
+  GstClapperGLBaseImport *gl_bi = GST_CLAPPER_GL_BASE_IMPORT_CAST (self);
+  GstEGLImage *image;
+  const GstGLFuncs *gl;
+
+  image = gst_egl_image_from_dmabuf_direct_target (gl_bi->gst_context,
+      fds, offsets, v_info, self->gst_tex_target);
+
+  /* If HW colorspace conversion failed and there is only one
+   * plane, we can just make it into single EGLImage as is */
+  if (!image && GST_VIDEO_INFO_N_PLANES (v_info) == 1)
+    image = gst_egl_image_from_dmabuf (gl_bi->gst_context,
+        fds[0], v_info, 0, offsets[0]);
+
+  if (!image)
+    return FALSE;
+
+  gl = gl_bi->gst_context->gl_vtable;
+
+  gl->GenTextures (1, &tex_data->id);
+  tex_data->width = GST_VIDEO_INFO_WIDTH (v_info);
+  tex_data->height = GST_VIDEO_INFO_HEIGHT (v_info);
+
+  gl->BindTexture (self->gl_tex_target, tex_data->id);
+
+  gl->TexParameteri (self->gl_tex_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+  gl->TexParameteri (self->gl_tex_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+  gl->TexParameteri (self->gl_tex_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+  gl->TexParameteri (self->gl_tex_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+  gl->EGLImageTargetTexture2D (self->gl_tex_target, gst_egl_image_get_image (image));
+
+  gl->BindTexture (GL_TEXTURE_2D, 0);
+  gst_egl_image_unref (image);
+
+  return TRUE;
+}
+
+static gboolean
+_oes_texture_into_2d (GstClapperDmabufBaseImport *self, GstClapperDmabufTexData *tex_data)
+{
+  GstClapperGLBaseImport *gl_bi = GST_CLAPPER_GL_BASE_IMPORT_CAST (self);
+  GLuint framebuffer, tex_id;
+  GLenum status;
+  const GstGLFuncs *gl;
+
+  gl = gl_bi->gst_context->gl_vtable;
+
+  gl->GenFramebuffers (1, &framebuffer);
+  gl->BindFramebuffer (GL_FRAMEBUFFER, framebuffer);
+
+  gl->GenTextures (1, &tex_id);
+  gl->BindTexture (GL_TEXTURE_2D, tex_id);
+
+  gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+  gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+  gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+  gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+  gl->TexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8, tex_data->width, tex_data->height, 0,
+      GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+
+  gl->FramebufferTexture2D (GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+      GL_TEXTURE_2D, tex_id, 0);
+
+  status = gl->CheckFramebufferStatus (GL_FRAMEBUFFER);
+  if (G_UNLIKELY (status != GL_FRAMEBUFFER_COMPLETE)) {
+    GST_ERROR ("Invalid framebuffer status: %u", status);
+
+    gl->BindTexture (GL_TEXTURE_2D, 0);
+    gl->DeleteTextures (1, &tex_id);
+
+    gl->BindFramebuffer (GL_FRAMEBUFFER, 0);
+    gl->DeleteFramebuffers (1, &framebuffer);
+
+    return FALSE;
+  }
+
+  gl->Viewport (0, 0, tex_data->width, tex_data->height);
+
+  gst_gl_shader_use (self->shader);
+
+  if (gl->BindVertexArray)
+    gl->BindVertexArray (self->vao);
+
+  gst_clapper_dmabuf_base_import_bind_buffer (self);
+
+  gl->ActiveTexture (GL_TEXTURE0);
+  gl->BindTexture (self->gl_tex_target, tex_data->id);
+
+  gst_gl_shader_set_uniform_1i (self->shader, "tex", 0);
+  gst_gl_shader_set_uniform_matrix_4fv (self->shader,
+      "u_transformation", 1, FALSE, vertical_flip_matrix);
+
+  gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
+
+  if (gl->BindVertexArray)
+    gl->BindVertexArray (0);
+  else
+    gst_clapper_dmabuf_base_import_unbind_buffer (self);
+
+  gl->BindTexture (self->gl_tex_target, 0);
+
+  /* Replace External OES texture with newly created 2D */
+  gl->DeleteTextures (1, &tex_data->id);
+  tex_data->id = tex_id;
+
+  gl->BindFramebuffer (GL_FRAMEBUFFER, 0);
+  gl->DeleteFramebuffers (1, &framebuffer);
+
+  return TRUE;
+}
+
+static void
+_tex_data_free (GstClapperDmabufTexData *tex_data)
+{
+  GstClapperGLBaseImport *gl_bi = GST_CLAPPER_GL_BASE_IMPORT_CAST (tex_data->dmabuf_bi);
+
+  if (G_LIKELY (tex_data->id > 0)) {
+    const GstGLFuncs *gl;
+
+    GST_CLAPPER_GL_BASE_IMPORT_LOCK (gl_bi);
+
+    gl = gl_bi->gst_context->gl_vtable;
+
+    gdk_gl_context_make_current (gl_bi->gdk_context);
+    gst_gl_context_activate (gl_bi->gst_context, TRUE);
+
+    gl->DeleteTextures (1, &tex_data->id);
+
+    gst_gl_context_activate (gl_bi->gst_context, FALSE);
+    gdk_gl_context_clear_current ();
+
+    GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (gl_bi);
+  }
+
+  gst_object_unref (tex_data->dmabuf_bi);
+  g_slice_free (GstClapperDmabufTexData, tex_data);
+}
+
+GdkTexture *
+gst_clapper_dmabuf_base_import_fds_into_texture (GstClapperDmabufBaseImport *self, gint *fds, gsize *offsets)
+{
+  GstClapperBaseImport *bi = GST_CLAPPER_BASE_IMPORT_CAST (self);
+  GstClapperGLBaseImport *gl_bi = GST_CLAPPER_GL_BASE_IMPORT_CAST (self);
+  GdkTexture *texture = NULL;
+  GstClapperDmabufTexData *tex_data;
+
+  tex_data = g_slice_new (GstClapperDmabufTexData);
+  tex_data->dmabuf_bi = gst_object_ref (self);
+
+  GST_CLAPPER_GL_BASE_IMPORT_LOCK (gl_bi);
+
+  gdk_gl_context_make_current (gl_bi->gdk_context);
+  gst_gl_context_activate (gl_bi->gst_context, TRUE);
+
+  if (!_dmabuf_into_texture (self, fds, &bi->in_info, offsets, tex_data))
+    goto finish;
+
+  /* GTK4 does not support External OES textures.
+   * Make it into 2D using framebuffer + shader */
+  if (self->gst_tex_target == GST_GL_TEXTURE_TARGET_EXTERNAL_OES) {
+    if (G_UNLIKELY (!_oes_texture_into_2d (self, tex_data)))
+      goto finish;
+  }
+
+  texture = gdk_gl_texture_new (gl_bi->gdk_context,
+      tex_data->id,
+      tex_data->width,
+      tex_data->height,
+      (GDestroyNotify) _tex_data_free,
+      tex_data);
+
+finish:
+  gst_gl_context_activate (gl_bi->gst_context, FALSE);
+  gdk_gl_context_clear_current ();
+
+  GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (gl_bi);
+
+  return texture;
+}
+
+static void
+gst_clapper_dmabuf_base_import_class_init (GstClapperDmabufBaseImportClass *klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *) klass;
+  GstElementClass *gstelement_class = (GstElementClass *) klass;
+
+  GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clapperdmabufbaseimport", 0,
+      "Clapper DMABuf Base Import");
+
+  gobject_class->finalize = gst_clapper_dmabuf_base_import_finalize;
+
+  gstelement_class->change_state = gst_clapper_dmabuf_base_import_change_state;
+}

lib/gst/plugin/gstclapperdmabufbaseimport.h

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <gst/gl/gstglfuncs.h>
+
+#include "gstclapperglbaseimport.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CLAPPER_DMABUF_BASE_IMPORT               (gst_clapper_dmabuf_base_import_get_type())
+#define GST_IS_CLAPPER_DMABUF_BASE_IMPORT(obj)            (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_CLAPPER_DMABUF_BASE_IMPORT))
+#define GST_IS_CLAPPER_DMABUF_BASE_IMPORT_CLASS(klass)    (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_CLAPPER_DMABUF_BASE_IMPORT))
+#define GST_CLAPPER_DMABUF_BASE_IMPORT_GET_CLASS(obj)     (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_CLAPPER_DMABUF_BASE_IMPORT, GstClapperDmabufBaseImportClass))
+#define GST_CLAPPER_DMABUF_BASE_IMPORT(obj)               (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_CLAPPER_DMABUF_BASE_IMPORT, GstClapperDmabufBaseImport))
+#define GST_CLAPPER_DMABUF_BASE_IMPORT_CLASS(klass)       (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_CLAPPER_DMABUF_BASE_IMPORT, GstClapperDmabufBaseImportClass))
+#define GST_CLAPPER_DMABUF_BASE_IMPORT_CAST(obj)          ((GstClapperDmabufBaseImport *)(obj))
+
+#define GST_CLAPPER_DMABUF_BASE_IMPORT_GET_LOCK(obj)      (&GST_CLAPPER_DMABUF_BASE_IMPORT_CAST(obj)->lock)
+#define GST_CLAPPER_DMABUF_BASE_IMPORT_LOCK(obj)          g_mutex_lock (GST_CLAPPER_DMABUF_BASE_IMPORT_GET_LOCK(obj))
+#define GST_CLAPPER_DMABUF_BASE_IMPORT_UNLOCK(obj)        g_mutex_unlock (GST_CLAPPER_DMABUF_BASE_IMPORT_GET_LOCK(obj))
+
+typedef struct _GstClapperDmabufBaseImport GstClapperDmabufBaseImport;
+typedef struct _GstClapperDmabufBaseImportClass GstClapperDmabufBaseImportClass;
+
+#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (GstClapperDmabufBaseImport, gst_object_unref)
+#endif
+
+struct _GstClapperDmabufBaseImport
+{
+  GstClapperGLBaseImport parent;
+
+  GMutex lock;
+
+  gboolean prepared;
+
+  GstGLTextureTarget gst_tex_target;
+  guint gl_tex_target;
+
+  GstGLShader *shader;
+
+  GLuint vao;
+  GLuint vertex_buffer;
+  GLint attr_position;
+  GLint attr_texture;
+};
+
+struct _GstClapperDmabufBaseImportClass
+{
+  GstClapperGLBaseImportClass parent_class;
+};
+
+GType gst_clapper_dmabuf_base_import_get_type (void);
+
+GdkTexture * gst_clapper_dmabuf_base_import_fds_into_texture (GstClapperDmabufBaseImport *dmabuf_bi, gint *fds, gsize *offsets);
+
+G_END_DECLS

lib/gst/plugin/gstclapperdmabufimport.c

@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gtk/gtk.h>
+#include <gst/allocators/gstdmabuf.h>
+
+#include "gstclapperdmabufimport.h"
+#include "gstclappergdkmemory.h"
+
+#define GST_CAT_DEFAULT gst_clapper_dmabuf_import_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+#ifndef GST_CAPS_FEATURE_MEMORY_DMABUF
+#define GST_CAPS_FEATURE_MEMORY_DMABUF "memory:DMABuf"
+#endif
+
+static GstStaticPadTemplate gst_clapper_dmabuf_import_sink_template =
+    GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_DMABUF,
+            "{ " GST_CLAPPER_GDK_GL_TEXTURE_FORMATS ", NV12 }")
+        "; "
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_DMABUF ", "
+            GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
+            "{ " GST_CLAPPER_GDK_GL_TEXTURE_FORMATS ", NV12 }")));
+
+static GstStaticPadTemplate gst_clapper_dmabuf_import_src_template =
+    GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_CLAPPER_GDK_MEMORY,
+            "{ " GST_CLAPPER_GDK_GL_TEXTURE_FORMATS ", NV12 }")
+        "; "
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_CLAPPER_GDK_MEMORY ", "
+            GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
+            "{ " GST_CLAPPER_GDK_GL_TEXTURE_FORMATS ", NV12 }")));
+
+#define parent_class gst_clapper_dmabuf_import_parent_class
+G_DEFINE_TYPE (GstClapperDmabufImport, gst_clapper_dmabuf_import, GST_TYPE_CLAPPER_DMABUF_BASE_IMPORT);
+GST_ELEMENT_REGISTER_DEFINE (clapperdmabufimport, "clapperdmabufimport", GST_RANK_NONE,
+    GST_TYPE_CLAPPER_DMABUF_IMPORT);
+
+static gboolean
+verify_dmabuf_memory (GstBuffer *buffer, GstVideoInfo *info, gint *fds, gsize *offsets)
+{
+  guint i, n_planes = GST_VIDEO_INFO_N_PLANES (info);
+
+  for (i = 0; i < n_planes; i++) {
+    GstMemory *memory;
+    gsize plane_size, mem_skip;
+    guint mem_idx, length;
+
+    plane_size = gst_gl_get_plane_data_size (info, NULL, i);
+
+    if (!gst_buffer_find_memory (buffer,
+        GST_VIDEO_INFO_PLANE_OFFSET (info, i),
+        plane_size, &mem_idx, &length, &mem_skip)) {
+      GST_DEBUG ("Could not find memory %u", i);
+      return FALSE;
+    }
+
+    /* We cannot have more then one DMABuf per plane */
+    if (length != 1) {
+      GST_DEBUG ("Data for plane %u spans %u memories", i, length);
+      return FALSE;
+    }
+
+    memory = gst_buffer_peek_memory (buffer, mem_idx);
+
+    offsets[i] = memory->offset + mem_skip;
+    fds[i] = gst_dmabuf_memory_get_fd (memory);
+  }
+
+  return TRUE;
+}
+
+static GstBufferPool *
+gst_clapper_dmabuf_import_create_upstream_pool (GstClapperBaseImport *bi, GstStructure **config)
+{
+  return NULL;
+}
+
+static GstFlowReturn
+gst_clapper_dmabuf_import_transform (GstBaseTransform *bt,
+    GstBuffer *in_buf, GstBuffer *out_buf)
+{
+  GstClapperDmabufBaseImport *dmabuf_bi = GST_CLAPPER_DMABUF_BASE_IMPORT_CAST (bt);
+  GstClapperBaseImport *bi = GST_CLAPPER_BASE_IMPORT_CAST (bt);
+  GstMapInfo info;
+  GstMemory *memory;
+  GstVideoMeta *meta;
+  GstFlowReturn ret = GST_FLOW_ERROR;
+
+  GST_LOG_OBJECT (bt, "Transforming from %" GST_PTR_FORMAT
+      " into %" GST_PTR_FORMAT, in_buf, out_buf);
+
+  if ((meta = gst_buffer_get_video_meta (in_buf))) {
+    guint i;
+
+    GST_VIDEO_INFO_WIDTH (&bi->in_info) = meta->width;
+    GST_VIDEO_INFO_HEIGHT (&bi->in_info) = meta->height;
+
+    for (i = 0; i < meta->n_planes; i++) {
+      GST_VIDEO_INFO_PLANE_OFFSET (&bi->in_info, i) = meta->offset[i];
+      GST_VIDEO_INFO_PLANE_STRIDE (&bi->in_info, i) = meta->stride[i];
+    }
+  }
+
+  memory = gst_buffer_peek_memory (out_buf, 0);
+
+  if (G_LIKELY (gst_memory_map (memory, &info, GST_MAP_WRITE))) {
+    gint fds[GST_VIDEO_MAX_PLANES];
+    gsize offsets[GST_VIDEO_MAX_PLANES];
+
+    if (verify_dmabuf_memory (in_buf, &bi->in_info, fds, offsets)) {
+      GstClapperGdkMemory *clapper_memory = GST_CLAPPER_GDK_MEMORY_CAST (memory);
+
+      if (G_LIKELY ((clapper_memory->texture = gst_clapper_dmabuf_base_import_fds_into_texture (
+          dmabuf_bi, fds, offsets))))
+        ret = GST_FLOW_OK;
+    }
+
+    gst_memory_unmap (memory, &info);
+  }
+
+  return ret;
+}
+
+static void
+gst_clapper_dmabuf_import_init (GstClapperDmabufImport *self)
+{
+}
+
+static void
+gst_clapper_dmabuf_import_class_init (GstClapperDmabufImportClass *klass)
+{
+  GstElementClass *gstelement_class = (GstElementClass *) klass;
+  GstBaseTransformClass *gstbasetransform_class = (GstBaseTransformClass *) klass;
+  GstClapperBaseImportClass *bi_class = (GstClapperBaseImportClass *) klass;
+
+  GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clapperdmabufimport", 0,
+      "Clapper DMABuf Import");
+
+  gstbasetransform_class->transform = gst_clapper_dmabuf_import_transform;
+
+  bi_class->create_upstream_pool = gst_clapper_dmabuf_import_create_upstream_pool;
+
+  gst_element_class_set_metadata (gstelement_class,
+      "Clapper DMABuf import",
+      "Filter/Video", "Imports DMABuf into ClapperGdkMemory",
+      "Rafał Dzięgiel <rafostar.github@gmail.com>");
+
+  gst_element_class_add_static_pad_template (gstelement_class,
+      &gst_clapper_dmabuf_import_sink_template);
+  gst_element_class_add_static_pad_template (gstelement_class,
+      &gst_clapper_dmabuf_import_src_template);
+}

lib/gst/plugin/gstclapperdmabufimport.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include "gstclapperdmabufbaseimport.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CLAPPER_DMABUF_IMPORT (gst_clapper_dmabuf_import_get_type())
+G_DECLARE_FINAL_TYPE (GstClapperDmabufImport, gst_clapper_dmabuf_import, GST, CLAPPER_DMABUF_IMPORT, GstClapperDmabufBaseImport)
+
+#define GST_CLAPPER_DMABUF_IMPORT_CAST(obj)        ((GstClapperDmabufImport *)(obj))
+
+struct _GstClapperDmabufImport
+{
+  GstClapperDmabufBaseImport parent;
+};
+
+GST_ELEMENT_REGISTER_DECLARE (clapperdmabufimport);
+
+G_END_DECLS

lib/gst/plugin/gstclappergdkbufferpool.c

@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstclappergdkbufferpool.h"
+
+#define GST_CAT_DEFAULT gst_clapper_gdk_buffer_pool_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+#define parent_class gst_clapper_gdk_buffer_pool_parent_class
+G_DEFINE_TYPE (GstClapperGdkBufferPool, gst_clapper_gdk_buffer_pool, GST_TYPE_BUFFER_POOL);
+
+static void
+gst_clapper_gdk_buffer_pool_init (GstClapperGdkBufferPool *pool)
+{
+}
+
+static const gchar **
+gst_clapper_gdk_buffer_pool_get_options (GstBufferPool *pool)
+{
+  static const gchar *options[] = {
+    GST_BUFFER_POOL_OPTION_VIDEO_META,
+    NULL
+  };
+
+  return options;
+}
+
+static gboolean
+gst_clapper_gdk_buffer_pool_set_config (GstBufferPool *pool, GstStructure *config)
+{
+  GstClapperGdkBufferPool *self = GST_CLAPPER_GDK_BUFFER_POOL_CAST (pool);
+  GstCaps *caps = NULL;
+  guint size, min_buffers, max_buffers;
+  GstVideoInfo info;
+  GstClapperGdkMemory *clapper_mem;
+
+  if (!gst_buffer_pool_config_get_params (config, &caps, &size,
+      &min_buffers, &max_buffers)) {
+    GST_WARNING_OBJECT (self, "Invalid buffer pool config");
+    return FALSE;
+  }
+
+  if (!caps || !gst_video_info_from_caps (&info, caps)) {
+    GST_WARNING_OBJECT (pool, "Could not parse caps into video info");
+    return FALSE;
+  }
+
+  gst_clear_object (&self->allocator);
+  self->allocator = GST_CLAPPER_GDK_ALLOCATOR_CAST (
+      gst_allocator_find (GST_CLAPPER_GDK_MEMORY_TYPE_NAME));
+
+  if (G_UNLIKELY (!self->allocator)) {
+    GST_ERROR_OBJECT (self, "ClapperGdkAllocator is unavailable");
+    return FALSE;
+  }
+
+  clapper_mem = GST_CLAPPER_GDK_MEMORY_CAST (
+      gst_clapper_gdk_allocator_alloc (self->allocator, &info));
+  if (G_UNLIKELY (!clapper_mem)) {
+    GST_ERROR_OBJECT (self, "Cannot create ClapperGdkMemory");
+    return FALSE;
+  }
+
+  gst_buffer_pool_config_set_params (config, caps,
+      GST_VIDEO_INFO_SIZE (&clapper_mem->info), min_buffers, max_buffers);
+  gst_memory_unref (GST_MEMORY_CAST (clapper_mem));
+
+  self->info = info;
+
+  GST_DEBUG_OBJECT (self, "Set buffer pool config: %" GST_PTR_FORMAT, config);
+
+  return GST_BUFFER_POOL_CLASS (parent_class)->set_config (pool, config);
+}
+
+static GstFlowReturn
+gst_clapper_gdk_buffer_pool_alloc (GstBufferPool *pool, GstBuffer **buffer,
+    GstBufferPoolAcquireParams *params)
+{
+  GstClapperGdkBufferPool *self = GST_CLAPPER_GDK_BUFFER_POOL_CAST (pool);
+  GstMemory *mem;
+  GstClapperGdkMemory *clapper_mem;
+
+  mem = gst_clapper_gdk_allocator_alloc (self->allocator, &self->info);
+  if (G_UNLIKELY (!mem)) {
+    GST_ERROR_OBJECT (self, "Cannot create ClapperGdkMemory");
+    return GST_FLOW_ERROR;
+  }
+
+  clapper_mem = GST_CLAPPER_GDK_MEMORY_CAST (mem);
+
+  *buffer = gst_buffer_new ();
+  gst_buffer_append_memory (*buffer, mem);
+
+  gst_buffer_add_video_meta_full (*buffer, GST_VIDEO_FRAME_FLAG_NONE,
+      GST_VIDEO_INFO_FORMAT (&self->info), GST_VIDEO_INFO_WIDTH (&self->info),
+      GST_VIDEO_INFO_HEIGHT (&self->info), GST_VIDEO_INFO_N_PLANES (&self->info),
+      clapper_mem->info.offset, clapper_mem->info.stride);
+
+  GST_TRACE_OBJECT (self, "Allocated %" GST_PTR_FORMAT, *buffer);
+
+  return GST_FLOW_OK;
+}
+
+static void
+gst_clapper_gdk_buffer_reset_buffer (GstBufferPool *pool, GstBuffer *buffer)
+{
+  GstClapperGdkMemory *clapper_mem;
+
+  GST_TRACE ("Reset %" GST_PTR_FORMAT, buffer);
+
+  clapper_mem = GST_CLAPPER_GDK_MEMORY_CAST (gst_buffer_peek_memory (buffer, 0));
+  g_clear_object (&clapper_mem->texture);
+
+  return GST_BUFFER_POOL_CLASS (parent_class)->reset_buffer (pool, buffer);
+}
+
+static void
+gst_clapper_gdk_buffer_pool_dispose (GObject *object)
+{
+  GstClapperGdkBufferPool *self = GST_CLAPPER_GDK_BUFFER_POOL_CAST (object);
+
+  gst_clear_object (&self->allocator);
+
+  GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
+}
+
+static void
+gst_clapper_gdk_buffer_pool_class_init (GstClapperGdkBufferPoolClass *klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *) klass;
+  GstBufferPoolClass *bufferpool_class = (GstBufferPoolClass *) klass;
+
+  gobject_class->dispose = gst_clapper_gdk_buffer_pool_dispose;
+
+  bufferpool_class->get_options = gst_clapper_gdk_buffer_pool_get_options;
+  bufferpool_class->set_config = gst_clapper_gdk_buffer_pool_set_config;
+  bufferpool_class->alloc_buffer = gst_clapper_gdk_buffer_pool_alloc;
+  bufferpool_class->reset_buffer = gst_clapper_gdk_buffer_reset_buffer;
+
+  GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clappergdkbufferpool", 0,
+      "Clapper Gdk Buffer Pool");
+}
+
+GstBufferPool *
+gst_clapper_gdk_buffer_pool_new (void)
+{
+  GstClapperGdkBufferPool *self;
+
+  self = g_object_new (GST_TYPE_CLAPPER_GDK_BUFFER_POOL, NULL);
+  gst_object_ref_sink (self);
+
+  return GST_BUFFER_POOL_CAST (self);
+}

lib/gst/plugin/gstclappergdkbufferpool.h

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <gst/gstbufferpool.h>
+#include <gst/video/video.h>
+
+#include "gstclappergdkmemory.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CLAPPER_GDK_BUFFER_POOL (gst_clapper_gdk_buffer_pool_get_type())
+G_DECLARE_FINAL_TYPE (GstClapperGdkBufferPool, gst_clapper_gdk_buffer_pool, GST, CLAPPER_GDK_BUFFER_POOL, GstBufferPool)
+
+#define GST_CLAPPER_GDK_BUFFER_POOL_CAST(obj)    ((GstClapperGdkBufferPool *)(obj))
+
+struct _GstClapperGdkBufferPool
+{
+  GstBufferPool parent;
+
+  GstClapperGdkAllocator *allocator;
+  GstVideoInfo info;
+};
+
+GstBufferPool * gst_clapper_gdk_buffer_pool_new (void);
+
+G_END_DECLS

lib/gst/plugin/gstclappergdkmemory.c

@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstclappergdkmemory.h"
+#include "gstgtkutils.h"
+
+#define GST_CAT_DEFAULT gst_clapper_gdk_allocator_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+static GstAllocator *_gst_clapper_gdk_allocator = NULL;
+
+#define parent_class gst_clapper_gdk_allocator_parent_class
+G_DEFINE_TYPE (GstClapperGdkAllocator, gst_clapper_gdk_allocator, GST_TYPE_ALLOCATOR);
+
+static void
+gst_clapper_gdk_allocator_free (GstAllocator *self, GstMemory *memory)
+{
+  GstClapperGdkMemory *mem = GST_CLAPPER_GDK_MEMORY_CAST (memory);
+
+  GST_TRACE_OBJECT (self, "Freeing ClapperGdkMemory: %" GST_PTR_FORMAT, mem);
+
+  g_clear_object (&mem->texture);
+  g_free (mem);
+}
+
+static gpointer
+gst_clapper_gdk_mem_map_full (GstMemory *memory, GstMapInfo *info, gsize maxsize)
+{
+  GstClapperGdkMemory *mem = GST_CLAPPER_GDK_MEMORY_CAST (memory);
+
+  return &mem->texture;
+}
+
+static void
+gst_clapper_gdk_mem_unmap_full (GstMemory *memory, GstMapInfo *info)
+{
+  /* NOOP */
+}
+
+static GstMemory *
+gst_clapper_gdk_mem_copy (GstMemory *memory, gssize offset, gssize size)
+{
+  return NULL;
+}
+
+static GstMemory *
+gst_clapper_gdk_mem_share (GstMemory *memory, gssize offset, gssize size)
+{
+  return NULL;
+}
+
+static gboolean
+gst_clapper_gdk_mem_is_span (GstMemory *mem1, GstMemory *mem2, gsize *offset)
+{
+  return FALSE;
+}
+
+static void
+gst_clapper_gdk_allocator_init (GstClapperGdkAllocator *self)
+{
+  GstAllocator *alloc = GST_ALLOCATOR_CAST (self);
+
+  alloc->mem_type = GST_CLAPPER_GDK_MEMORY_TYPE_NAME;
+  alloc->mem_map_full = gst_clapper_gdk_mem_map_full;
+  alloc->mem_unmap_full = gst_clapper_gdk_mem_unmap_full;
+  alloc->mem_copy = gst_clapper_gdk_mem_copy;
+  alloc->mem_share = gst_clapper_gdk_mem_share;
+  alloc->mem_is_span = gst_clapper_gdk_mem_is_span;
+
+  GST_OBJECT_FLAG_SET (self, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC);
+}
+
+static void
+gst_clapper_gdk_allocator_class_init (GstClapperGdkAllocatorClass *klass)
+{
+  GstAllocatorClass *allocator_class = (GstAllocatorClass *) klass;
+
+  allocator_class->alloc = NULL;
+  allocator_class->free = GST_DEBUG_FUNCPTR (gst_clapper_gdk_allocator_free);
+
+  GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clappergdkallocator", 0,
+      "Clapper Gdk Allocator");
+}
+
+void
+gst_clapper_gdk_memory_init_once (void)
+{
+  static gsize _alloc_init = 0;
+
+  if (g_once_init_enter (&_alloc_init)) {
+    _gst_clapper_gdk_allocator = GST_ALLOCATOR_CAST (
+        g_object_new (GST_TYPE_CLAPPER_GDK_ALLOCATOR, NULL));
+    gst_object_ref_sink (_gst_clapper_gdk_allocator);
+
+    gst_allocator_register (GST_CLAPPER_GDK_MEMORY_TYPE_NAME, _gst_clapper_gdk_allocator);
+    g_once_init_leave (&_alloc_init, 1);
+  }
+}
+
+gboolean
+gst_is_clapper_gdk_memory (GstMemory *memory)
+{
+  return (memory != NULL && memory->allocator != NULL
+      && GST_IS_CLAPPER_GDK_ALLOCATOR (memory->allocator));
+}
+
+GstMemory *
+gst_clapper_gdk_allocator_alloc (GstClapperGdkAllocator *self, const GstVideoInfo *info)
+{
+  GstClapperGdkMemory *mem;
+
+  mem = g_new0 (GstClapperGdkMemory, 1);
+  mem->info = *info;
+
+  gst_memory_init (GST_MEMORY_CAST (mem), 0, GST_ALLOCATOR_CAST (self),
+      NULL, GST_VIDEO_INFO_SIZE (info), 0, 0, GST_VIDEO_INFO_SIZE (info));
+
+  GST_TRACE_OBJECT (self, "Allocated new ClapperGdkMemory: %" GST_PTR_FORMAT, mem);
+
+  return GST_MEMORY_CAST (mem);
+}

lib/gst/plugin/gstclappergdkmemory.h

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <gtk/gtk.h>
+#include <gst/gstmemory.h>
+#include <gst/gstallocator.h>
+#include <gst/video/video.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CLAPPER_GDK_ALLOCATOR (gst_clapper_gdk_allocator_get_type())
+G_DECLARE_FINAL_TYPE (GstClapperGdkAllocator, gst_clapper_gdk_allocator, GST, CLAPPER_GDK_ALLOCATOR, GstAllocator)
+
+#define GST_CLAPPER_GDK_ALLOCATOR_CAST(obj)      ((GstClapperGdkAllocator *)(obj))
+#define GST_CLAPPER_GDK_MEMORY_CAST(mem)         ((GstClapperGdkMemory *)(mem))
+
+#define GST_CLAPPER_GDK_MEMORY_TYPE_NAME         "gst.clapper.gdk.memory"
+
+#define GST_CAPS_FEATURE_CLAPPER_GDK_MEMORY      "memory:ClapperGdkMemory"
+
+#define GST_CLAPPER_GDK_MEMORY_FORMATS           \
+    "RGBA64_LE, RGBA64_BE, ABGR, BGRA, "         \
+    "ARGB, RGBA, BGRx, RGBx, BGR, RGB"           \
+
+/* Formats that `GdkGLTexture` supports */
+#define GST_CLAPPER_GDK_GL_TEXTURE_FORMATS       \
+    "RGBA64_LE, RGBA64_BE, RGBA, RGBx, RGB"      \
+
+typedef struct _GstClapperGdkMemory GstClapperGdkMemory;
+struct _GstClapperGdkMemory
+{
+  GstMemory mem;
+
+  GdkTexture *texture;
+  GstVideoInfo info;
+};
+
+struct _GstClapperGdkAllocator
+{
+  GstAllocator parent;
+};
+
+void        gst_clapper_gdk_memory_init_once     (void);
+
+gboolean    gst_is_clapper_gdk_memory            (GstMemory *memory);
+
+GstMemory * gst_clapper_gdk_allocator_alloc      (GstClapperGdkAllocator *allocator, const GstVideoInfo *info);
+
+G_END_DECLS

lib/gst/plugin/gstclapperglbaseimport.c

@@ -0,0 +1,414 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gtk/gtk.h>
+#include <gst/gl/gstglfuncs.h>
+
+#include "gstclapperglbaseimport.h"
+#include "gstgtkutils.h"
+
+#if GST_CLAPPER_GL_HAVE_WAYLAND
+#include <gdk/wayland/gdkwayland.h>
+#include <gst/gl/wayland/gstgldisplay_wayland.h>
+#endif
+
+#if GST_CLAPPER_GL_HAVE_X11
+#include <gdk/x11/gdkx.h>
+#endif
+
+#if GST_CLAPPER_GL_HAVE_X11_GLX
+#include <gst/gl/x11/gstgldisplay_x11.h>
+#endif
+#if GST_CLAPPER_GL_HAVE_X11_EGL
+#include <gst/gl/egl/gstgldisplay_egl.h>
+#endif
+
+#define GST_CAT_DEFAULT gst_clapper_gl_base_import_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+#define parent_class gst_clapper_gl_base_import_parent_class
+G_DEFINE_TYPE (GstClapperGLBaseImport, gst_clapper_gl_base_import, GST_TYPE_CLAPPER_BASE_IMPORT);
+
+static void
+gst_clapper_gl_base_import_init (GstClapperGLBaseImport *self)
+{
+  g_mutex_init (&self->lock);
+}
+
+static void
+gst_clapper_gl_base_import_finalize (GObject *object)
+{
+  GstClapperGLBaseImport *self = GST_CLAPPER_GL_BASE_IMPORT_CAST (object);
+
+  g_clear_object (&self->gdk_context);
+  gst_clear_object (&self->gst_context);
+  gst_clear_object (&self->wrapped_context);
+  gst_clear_object (&self->gst_display);
+
+  g_mutex_clear (&self->lock);
+
+  GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
+}
+
+static GstGLContext *
+wrap_current_gl (GstGLDisplay *display, GdkGLAPI gdk_gl_api, GstGLPlatform platform)
+{
+  GstGLAPI gst_gl_api = GST_GL_API_NONE;
+
+  switch (gdk_gl_api) {
+    case GDK_GL_API_GL:
+      gst_gl_api = GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
+      break;
+    case GDK_GL_API_GLES:
+      gst_gl_api = GST_GL_API_GLES2;
+      break;
+    default:
+      g_assert_not_reached ();
+      break;
+  }
+
+  if (gst_gl_api != GST_GL_API_NONE) {
+    guintptr gl_handle;
+
+    gst_gl_display_filter_gl_api (display, gst_gl_api);
+
+    if ((gl_handle = gst_gl_context_get_current_gl_context (platform)))
+      return gst_gl_context_new_wrapped (display, gl_handle, platform, gst_gl_api);
+  }
+
+  return NULL;
+}
+
+static gboolean
+retrieve_gl_context_on_main (GstClapperGLBaseImport *self)
+{
+  GstClapperGLBaseImportClass *gl_bi_class = GST_CLAPPER_GL_BASE_IMPORT_GET_CLASS (self);
+  GdkDisplay *gdk_display;
+  GdkGLContext *gdk_context;
+  GError *error = NULL;
+  GdkGLAPI gdk_gl_api;
+  GstGLPlatform platform = GST_GL_PLATFORM_NONE;
+  gint gl_major = 0, gl_minor = 0;
+
+  if (!gtk_init_check ()) {
+    GST_ERROR_OBJECT (self, "Could not ensure GTK initialization");
+    return FALSE;
+  }
+
+  gdk_display = gdk_display_get_default ();
+
+  if (!(gdk_context = gdk_display_create_gl_context (gdk_display, &error))) {
+    GST_ERROR_OBJECT (self, "Error creating Gdk GL context: %s",
+        error ? error->message : "No error set by Gdk");
+    g_clear_error (&error);
+
+    return FALSE;
+  }
+
+  if (!gl_bi_class->gdk_context_realize (self, gdk_context)) {
+    GST_ERROR_OBJECT (self, "Could not realize Gdk context: %" GST_PTR_FORMAT,
+        gdk_context);
+    g_object_unref (gdk_context);
+
+    return FALSE;
+  }
+  gdk_gl_api = gdk_gl_context_get_api (gdk_context);
+
+  GST_CLAPPER_GL_BASE_IMPORT_LOCK (self);
+
+  self->gdk_context = gdk_context;
+
+#if GST_CLAPPER_GL_HAVE_WAYLAND
+  if (GDK_IS_WAYLAND_DISPLAY (gdk_display)) {
+    struct wl_display *wayland_display =
+        gdk_wayland_display_get_wl_display (gdk_display);
+    self->gst_display = (GstGLDisplay *)
+        gst_gl_display_wayland_new_with_display (wayland_display);
+  }
+#endif
+
+#if GST_CLAPPER_GL_HAVE_X11
+  if (GDK_IS_X11_DISPLAY (gdk_display)) {
+    gpointer display_ptr;
+#if GST_CLAPPER_GL_HAVE_X11_EGL
+    display_ptr = gdk_x11_display_get_egl_display (gdk_display);
+    if (display_ptr) {
+      self->gst_display = (GstGLDisplay *)
+          gst_gl_display_egl_new_with_egl_display (display_ptr);
+    }
+#endif
+#if GST_CLAPPER_GL_HAVE_X11_GLX
+    if (!self->gst_display) {
+      display_ptr = gdk_x11_display_get_xdisplay (gdk_display);
+      self->gst_display = (GstGLDisplay *)
+          gst_gl_display_x11_new_with_display (display_ptr);
+    }
+  }
+#endif
+#endif
+
+  /* Fallback to generic display */
+  if (G_UNLIKELY (!self->gst_display)) {
+    GST_WARNING_OBJECT (self, "Unknown Gdk display!");
+    self->gst_display = gst_gl_display_new ();
+  }
+
+#if GST_CLAPPER_GL_HAVE_WAYLAND
+  if (GST_IS_GL_DISPLAY_WAYLAND (self->gst_display)) {
+    platform = GST_GL_PLATFORM_EGL;
+    GST_INFO_OBJECT (self, "Using EGL on Wayland");
+    goto have_display;
+  }
+#endif
+#if GST_CLAPPER_GL_HAVE_X11_EGL
+  if (GST_IS_GL_DISPLAY_EGL (self->gst_display)) {
+    platform = GST_GL_PLATFORM_EGL;
+    GST_INFO_OBJECT (self, "Using EGL on x11");
+    goto have_display;
+  }
+#endif
+#if GST_CLAPPER_GL_HAVE_X11_GLX
+  if (GST_IS_GL_DISPLAY_X11 (self->gst_display)) {
+    platform = GST_GL_PLATFORM_GLX;
+    GST_INFO_OBJECT (self, "Using GLX on x11");
+    goto have_display;
+  }
+#endif
+
+  g_clear_object (&self->gdk_context);
+  gst_clear_object (&self->gst_display);
+
+  GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (self);
+
+  GST_ERROR_OBJECT (self, "Unsupported GL platform");
+  return FALSE;
+
+have_display:
+  gdk_gl_context_make_current (self->gdk_context);
+
+  self->wrapped_context = wrap_current_gl (self->gst_display, gdk_gl_api, platform);
+  if (!self->wrapped_context) {
+    GST_ERROR ("Could not retrieve Gdk OpenGL context");
+    gdk_gl_context_clear_current ();
+
+    g_clear_object (&self->gdk_context);
+    gst_clear_object (&self->gst_display);
+
+    GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (self);
+
+    return FALSE;
+  }
+
+  GST_INFO ("Retrieved Gdk OpenGL context %" GST_PTR_FORMAT, self->wrapped_context);
+  gst_gl_context_activate (self->wrapped_context, TRUE);
+
+  if (!gst_gl_context_fill_info (self->wrapped_context, &error)) {
+    GST_ERROR ("Failed to fill Gdk context info: %s", error->message);
+    g_clear_error (&error);
+
+    gst_gl_context_activate (self->wrapped_context, FALSE);
+
+    gst_clear_object (&self->wrapped_context);
+    g_clear_object (&self->gdk_context);
+    gst_clear_object (&self->gst_display);
+
+    GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (self);
+
+    return FALSE;
+  }
+
+  gst_gl_context_get_gl_version (self->wrapped_context, &gl_major, &gl_minor);
+  GST_INFO ("Using OpenGL%s %i.%i", (gdk_gl_api == GDK_GL_API_GLES) ? " ES" : "",
+      gl_major, gl_minor);
+
+  /* Deactivate in both places */
+  gst_gl_context_activate (self->wrapped_context, FALSE);
+  gdk_gl_context_clear_current ();
+
+  GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (self);
+
+  return TRUE;
+}
+
+static gboolean
+ensure_gl_context (GstClapperGLBaseImport *self)
+{
+  GstGLDisplay *gst_display = NULL;
+  GstGLContext *gst_context = NULL;
+  GError *error = NULL;
+  gboolean has_gdk_contexts;
+
+  GST_CLAPPER_GL_BASE_IMPORT_LOCK (self);
+  has_gdk_contexts = (self->gdk_context && self->wrapped_context);
+  GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (self);
+
+  if (!has_gdk_contexts) {
+    if (!(! !gst_gtk_invoke_on_main (
+        (GThreadFunc) (GCallback) retrieve_gl_context_on_main, self))) {
+      GST_ERROR_OBJECT (self, "Could not retrieve Gdk GL context");
+
+      return FALSE;
+    }
+  }
+
+  GST_CLAPPER_GL_BASE_IMPORT_LOCK (self);
+
+  gst_display = gst_object_ref (self->gst_display);
+
+  /* GstGLDisplay operations require object lock to be held */
+  GST_OBJECT_LOCK (gst_display);
+
+  if (!self->gst_context) {
+    GST_TRACE_OBJECT (self, "Creating new GstGLContext");
+
+    if (!gst_gl_display_create_context (gst_display, self->wrapped_context,
+        &self->gst_context, &error)) {
+      GST_WARNING ("Could not create OpenGL context: %s",
+          error ? error->message : "Unknown");
+      g_clear_error (&error);
+
+      GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (self);
+
+      return FALSE;
+    }
+  }
+
+  gst_context = gst_object_ref (self->gst_context);
+
+  GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (self);
+
+  /* Calls `set_context` internally, so we cannot be locked here */
+  gst_gl_display_add_context (gst_display, gst_context);
+  gst_gl_element_propagate_display_context (GST_ELEMENT_CAST (self), gst_display);
+
+  GST_OBJECT_UNLOCK (gst_display);
+
+  gst_object_unref (gst_display);
+  gst_object_unref (gst_context);
+
+  return TRUE;
+}
+
+static void
+gst_clapper_gl_base_import_set_context (GstElement *element, GstContext *context)
+{
+  GstClapperGLBaseImport *self = GST_CLAPPER_GL_BASE_IMPORT_CAST (element);
+
+  GST_DEBUG_OBJECT (self, "Set context");
+
+  GST_CLAPPER_GL_BASE_IMPORT_LOCK (self);
+  gst_gl_handle_set_context (element, context, &self->gst_display,
+      &self->wrapped_context);
+  GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (self);
+
+  GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
+}
+
+static GstStateChangeReturn
+gst_clapper_gl_base_import_change_state (GstElement *element, GstStateChange transition)
+{
+  GstClapperGLBaseImport *self = GST_CLAPPER_GL_BASE_IMPORT_CAST (element);
+  GstStateChangeReturn ret;
+
+  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+  if (ret == GST_STATE_CHANGE_FAILURE)
+    return ret;
+
+  switch (transition) {
+    case GST_STATE_CHANGE_NULL_TO_READY:
+      if (!ensure_gl_context (self))
+        return GST_STATE_CHANGE_FAILURE;
+      break;
+    default:
+      break;
+  }
+
+  return ret;
+}
+
+static gboolean
+gst_clapper_gl_base_import_query (GstBaseTransform *bt,
+    GstPadDirection direction, GstQuery *query)
+{
+  GstClapperGLBaseImport *self = GST_CLAPPER_GL_BASE_IMPORT_CAST (bt);
+  gboolean res;
+
+  switch (GST_QUERY_TYPE (query)) {
+    case GST_QUERY_CONTEXT:
+      GST_CLAPPER_GL_BASE_IMPORT_LOCK (self);
+      res = gst_gl_handle_context_query (GST_ELEMENT_CAST (self), query,
+          self->gst_display, self->gst_context, self->wrapped_context);
+      GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (self);
+      break;
+    default:
+      res = GST_BASE_TRANSFORM_CLASS (parent_class)->query (bt, direction, query);
+      break;
+  }
+
+  return res;
+}
+
+static gboolean
+gst_clapper_gl_base_import_gdk_context_realize (GstClapperGLBaseImport *self, GdkGLContext *gdk_context)
+{
+  GError *error = NULL;
+  gboolean success;
+
+  GST_DEBUG_OBJECT (self, "Realizing GdkGLContext with default implementation");
+
+  gdk_gl_context_set_allowed_apis (gdk_context, GDK_GL_API_GLES);
+  if (!(success = gdk_gl_context_realize (gdk_context, &error))) {
+    GST_WARNING_OBJECT (self, "Could not realize Gdk context with GLES: %s", error->message);
+    g_clear_error (&error);
+  }
+  if (!success) {
+    gdk_gl_context_set_allowed_apis (gdk_context, GDK_GL_API_GL);
+    if (!(success = gdk_gl_context_realize (gdk_context, &error))) {
+      GST_WARNING_OBJECT (self, "Could not realize Gdk context with GL: %s", error->message);
+      g_clear_error (&error);
+    }
+  }
+
+  return success;
+}
+
+static void
+gst_clapper_gl_base_import_class_init (GstClapperGLBaseImportClass *klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *) klass;
+  GstElementClass *gstelement_class = (GstElementClass *) klass;
+  GstBaseTransformClass *gstbasetransform_class = (GstBaseTransformClass *) klass;
+  GstClapperGLBaseImportClass *gl_bi_class = (GstClapperGLBaseImportClass *) klass;
+
+  GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clapperglbaseimport", 0,
+      "Clapper GL Base Import");
+
+  gobject_class->finalize = gst_clapper_gl_base_import_finalize;
+
+  gstelement_class->set_context = gst_clapper_gl_base_import_set_context;
+  gstelement_class->change_state = gst_clapper_gl_base_import_change_state;
+
+  gstbasetransform_class->query = gst_clapper_gl_base_import_query;
+
+  gl_bi_class->gdk_context_realize = gst_clapper_gl_base_import_gdk_context_realize;
+}

lib/gst/plugin/gstclapperglbaseimport.h

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <gst/gl/gl.h>
+#include <gtk/gtk.h>
+
+#include "gstclapperbaseimport.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CLAPPER_GL_BASE_IMPORT               (gst_clapper_gl_base_import_get_type())
+#define GST_IS_CLAPPER_GL_BASE_IMPORT(obj)            (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_CLAPPER_GL_BASE_IMPORT))
+#define GST_IS_CLAPPER_GL_BASE_IMPORT_CLASS(klass)    (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_CLAPPER_GL_BASE_IMPORT))
+#define GST_CLAPPER_GL_BASE_IMPORT_GET_CLASS(obj)     (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_CLAPPER_GL_BASE_IMPORT, GstClapperGLBaseImportClass))
+#define GST_CLAPPER_GL_BASE_IMPORT(obj)               (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_CLAPPER_GL_BASE_IMPORT, GstClapperGLBaseImport))
+#define GST_CLAPPER_GL_BASE_IMPORT_CLASS(klass)       (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_CLAPPER_GL_BASE_IMPORT, GstClapperGLBaseImportClass))
+#define GST_CLAPPER_GL_BASE_IMPORT_CAST(obj)          ((GstClapperGLBaseImport *)(obj))
+
+#define GST_CLAPPER_GL_BASE_IMPORT_GET_LOCK(obj)      (&GST_CLAPPER_GL_BASE_IMPORT_CAST(obj)->lock)
+#define GST_CLAPPER_GL_BASE_IMPORT_LOCK(obj)          g_mutex_lock (GST_CLAPPER_GL_BASE_IMPORT_GET_LOCK(obj))
+#define GST_CLAPPER_GL_BASE_IMPORT_UNLOCK(obj)        g_mutex_unlock (GST_CLAPPER_GL_BASE_IMPORT_GET_LOCK(obj))
+
+#define GST_CLAPPER_GL_HAVE_WAYLAND                   (GST_GL_HAVE_WINDOW_WAYLAND && defined (GDK_WINDOWING_WAYLAND))
+#define GST_CLAPPER_GL_HAVE_X11                       (GST_GL_HAVE_WINDOW_X11 && defined (GDK_WINDOWING_X11))
+#define GST_CLAPPER_GL_HAVE_X11_GLX                   (GST_CLAPPER_GL_HAVE_X11 && GST_GL_HAVE_PLATFORM_GLX)
+#define GST_CLAPPER_GL_HAVE_X11_EGL                   (GST_CLAPPER_GL_HAVE_X11 && GST_GL_HAVE_PLATFORM_EGL)
+
+typedef struct _GstClapperGLBaseImport GstClapperGLBaseImport;
+typedef struct _GstClapperGLBaseImportClass GstClapperGLBaseImportClass;
+
+#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (GstClapperGLBaseImport, gst_object_unref)
+#endif
+
+struct _GstClapperGLBaseImport
+{
+  GstClapperBaseImport parent;
+
+  GMutex lock;
+
+  GdkGLContext *gdk_context;
+  GstGLContext *gst_context;
+  GstGLContext *wrapped_context;
+  GstGLDisplay *gst_display;
+};
+
+struct _GstClapperGLBaseImportClass
+{
+  GstClapperBaseImportClass parent_class;
+
+  gboolean (* gdk_context_realize) (GstClapperGLBaseImport *gl_bi,
+                                    GdkGLContext           *gdk_context);
+};
+
+GType gst_clapper_gl_base_import_get_type (void);
+
+G_END_DECLS

lib/gst/plugin/gstclapperglimport.c

@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstclapperglimport.h"
+#include "gstclappergdkmemory.h"
+
+#define GST_CAT_DEFAULT gst_clapper_gl_import_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+static GstStaticPadTemplate gst_clapper_gl_import_sink_template =
+    GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_GL_MEMORY,
+            "{ " GST_CLAPPER_GDK_GL_TEXTURE_FORMATS " }") ", "
+            "texture-target = (string) { " GST_GL_TEXTURE_TARGET_2D_STR " }"
+        "; "
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_GL_MEMORY ", "
+            GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
+            "{ " GST_CLAPPER_GDK_GL_TEXTURE_FORMATS " }") ", "
+            "texture-target = (string) { " GST_GL_TEXTURE_TARGET_2D_STR " }"));
+
+static GstStaticPadTemplate gst_clapper_gl_import_src_template =
+    GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_CLAPPER_GDK_MEMORY,
+            "{ " GST_CLAPPER_GDK_GL_TEXTURE_FORMATS " }")
+        "; "
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_CLAPPER_GDK_MEMORY ", "
+            GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
+            "{ " GST_CLAPPER_GDK_GL_TEXTURE_FORMATS " }")));
+
+#define parent_class gst_clapper_gl_import_parent_class
+G_DEFINE_TYPE (GstClapperGLImport, gst_clapper_gl_import, GST_TYPE_CLAPPER_GL_BASE_IMPORT);
+GST_ELEMENT_REGISTER_DEFINE (clapperglimport, "clapperglimport", GST_RANK_NONE,
+    GST_TYPE_CLAPPER_GL_IMPORT);
+
+static GstBufferPool *
+gst_clapper_gl_import_create_upstream_pool (GstClapperBaseImport *bi, GstStructure **config)
+{
+  GstClapperGLBaseImport *gl_bi = GST_CLAPPER_GL_BASE_IMPORT_CAST (bi);
+  GstBufferPool *pool;
+  GstGLContext *context;
+
+  GST_DEBUG_OBJECT (bi, "Creating new pool");
+
+  GST_CLAPPER_GL_BASE_IMPORT_LOCK (gl_bi);
+  context = gst_object_ref (gl_bi->gst_context);
+  GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (gl_bi);
+
+  pool = gst_gl_buffer_pool_new (context);
+  gst_object_unref (context);
+
+  *config = gst_buffer_pool_get_config (pool);
+
+  gst_buffer_pool_config_add_option (*config, GST_BUFFER_POOL_OPTION_GL_SYNC_META);
+
+  return pool;
+}
+
+static void
+video_frame_unmap_and_free (GstVideoFrame *frame)
+{
+  gst_video_frame_unmap (frame);
+  g_slice_free (GstVideoFrame, frame);
+}
+
+static GstFlowReturn
+gst_clapper_gl_import_transform (GstBaseTransform *bt,
+    GstBuffer *in_buf, GstBuffer *out_buf)
+{
+  GstClapperGLBaseImport *gl_bi = GST_CLAPPER_GL_BASE_IMPORT_CAST (bt);
+  GstClapperBaseImport *bi = GST_CLAPPER_BASE_IMPORT_CAST (bt);
+  GstVideoFrame *frame;
+  GstMapInfo info;
+  GstMemory *memory;
+  GstClapperGdkMemory *clapper_memory;
+  GstGLSyncMeta *sync_meta;
+
+  frame = g_slice_new (GstVideoFrame);
+
+  if (!gst_clapper_base_import_map_buffers (bi, in_buf, out_buf,
+      GST_MAP_READ | GST_MAP_GL, GST_MAP_WRITE, frame, &info, &memory)) {
+    g_slice_free (GstVideoFrame, frame);
+
+    return GST_FLOW_ERROR;
+  }
+
+  clapper_memory = GST_CLAPPER_GDK_MEMORY_CAST (memory);
+
+  GST_CLAPPER_GL_BASE_IMPORT_LOCK (gl_bi);
+
+  /* Must have context active here for both sync meta
+   * and Gdk texture format auto-detection to work */
+  gdk_gl_context_make_current (gl_bi->gdk_context);
+  gst_gl_context_activate (gl_bi->wrapped_context, TRUE);
+
+  sync_meta = gst_buffer_get_gl_sync_meta (in_buf);
+
+  /* Wait for all previous OpenGL commands to complete,
+   * before we start using the input texture */
+  if (sync_meta) {
+    gst_gl_sync_meta_set_sync_point (sync_meta, gl_bi->gst_context);
+    gst_gl_sync_meta_wait (sync_meta, gl_bi->wrapped_context);
+  }
+
+  /* Keep input data alive as long as necessary,
+   * unmap only after texture is destroyed */
+  clapper_memory->texture = gdk_gl_texture_new (
+      gl_bi->gdk_context,
+      *(guint *) GST_VIDEO_FRAME_PLANE_DATA (frame, 0),
+      GST_VIDEO_FRAME_WIDTH (frame),
+      GST_VIDEO_FRAME_HEIGHT (frame),
+      (GDestroyNotify) video_frame_unmap_and_free,
+      frame);
+
+  gst_gl_context_activate (gl_bi->wrapped_context, FALSE);
+  gdk_gl_context_clear_current ();
+
+  GST_CLAPPER_GL_BASE_IMPORT_UNLOCK (gl_bi);
+
+  gst_memory_unmap (memory, &info);
+
+  return GST_FLOW_OK;
+}
+
+static void
+gst_clapper_gl_import_init (GstClapperGLImport *self)
+{
+}
+
+static void
+gst_clapper_gl_import_class_init (GstClapperGLImportClass *klass)
+{
+  GstElementClass *gstelement_class = (GstElementClass *) klass;
+  GstBaseTransformClass *gstbasetransform_class = (GstBaseTransformClass *) klass;
+  GstClapperBaseImportClass *bi_class = (GstClapperBaseImportClass *) klass;
+
+  GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clapperglimport", 0,
+      "Clapper GL Import");
+
+  gstbasetransform_class->transform = gst_clapper_gl_import_transform;
+
+  bi_class->create_upstream_pool = gst_clapper_gl_import_create_upstream_pool;
+
+  gst_element_class_set_metadata (gstelement_class,
+      "Clapper GL import",
+      "Filter/Video", "Imports GL memory into ClapperGdkMemory",
+      "Rafał Dzięgiel <rafostar.github@gmail.com>");
+
+  gst_element_class_add_static_pad_template (gstelement_class,
+      &gst_clapper_gl_import_sink_template);
+  gst_element_class_add_static_pad_template (gstelement_class,
+      &gst_clapper_gl_import_src_template);
+}

lib/gst/plugin/gstclapperglimport.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include "gstclapperglbaseimport.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CLAPPER_GL_IMPORT (gst_clapper_gl_import_get_type())
+G_DECLARE_FINAL_TYPE (GstClapperGLImport, gst_clapper_gl_import, GST, CLAPPER_GL_IMPORT, GstClapperGLBaseImport)
+
+#define GST_CLAPPER_GL_IMPORT_CAST(obj)        ((GstClapperGLImport *)(obj))
+
+struct _GstClapperGLImport
+{
+  GstClapperGLBaseImport parent;
+};
+
+GST_ELEMENT_REGISTER_DECLARE (clapperglimport);
+
+G_END_DECLS

lib/gst/plugin/gstclapperimport.c

@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstclapperimport.h"
+#include "gstclappergdkmemory.h"
+#include "gstgtkutils.h"
+
+#define GST_CAT_DEFAULT gst_clapper_import_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+static GstStaticPadTemplate gst_clapper_import_sink_template =
+    GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (
+        GST_VIDEO_CAPS_MAKE ("{ " GST_CLAPPER_GDK_MEMORY_FORMATS " }")));
+
+static GstStaticPadTemplate gst_clapper_import_src_template =
+    GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_CLAPPER_GDK_MEMORY,
+            "{ " GST_CLAPPER_GDK_MEMORY_FORMATS " }")));
+
+#define parent_class gst_clapper_import_parent_class
+G_DEFINE_TYPE (GstClapperImport, gst_clapper_import, GST_TYPE_CLAPPER_BASE_IMPORT);
+GST_ELEMENT_REGISTER_DEFINE (clapperimport, "clapperimport", GST_RANK_NONE,
+    GST_TYPE_CLAPPER_IMPORT);
+
+static GstBufferPool *
+gst_clapper_import_create_upstream_pool (GstClapperBaseImport *bi, GstStructure **config)
+{
+  GstClapperImport *self = GST_CLAPPER_IMPORT_CAST (bi);
+  GstBufferPool *pool;
+
+  GST_DEBUG_OBJECT (self, "Creating new upstream pool");
+
+  pool = gst_video_buffer_pool_new ();
+  *config = gst_buffer_pool_get_config (pool);
+
+  return pool;
+}
+
+static void
+video_frame_unmap_and_free (GstVideoFrame *frame)
+{
+  gst_video_frame_unmap (frame);
+  g_slice_free (GstVideoFrame, frame);
+}
+
+static GstFlowReturn
+gst_clapper_import_transform (GstBaseTransform *bt,
+    GstBuffer *in_buf, GstBuffer *out_buf)
+{
+  GstClapperBaseImport *bi = GST_CLAPPER_BASE_IMPORT_CAST (bt);
+  GstVideoFrame *frame;
+  GstMapInfo info;
+  GstMemory *memory;
+
+  frame = g_slice_new (GstVideoFrame);
+
+  if (!gst_clapper_base_import_map_buffers (bi, in_buf, out_buf,
+      GST_MAP_READ, GST_MAP_WRITE, frame, &info, &memory)) {
+    g_slice_free (GstVideoFrame, frame);
+
+    return GST_FLOW_ERROR;
+  }
+
+  /* Keep frame data alive as long as necessary,
+   * unmap only after bytes are destroyed */
+  GST_CLAPPER_GDK_MEMORY_CAST (memory)->texture = gst_video_frame_into_gdk_texture (
+      frame, (GDestroyNotify) video_frame_unmap_and_free);
+
+  gst_memory_unmap (memory, &info);
+
+  return GST_FLOW_OK;
+}
+
+static void
+gst_clapper_import_init (GstClapperImport *self)
+{
+}
+
+static void
+gst_clapper_import_class_init (GstClapperImportClass *klass)
+{
+  GstElementClass *gstelement_class = (GstElementClass *) klass;
+  GstBaseTransformClass *gstbasetransform_class = (GstBaseTransformClass *) klass;
+  GstClapperBaseImportClass *bi_class = (GstClapperBaseImportClass *) klass;
+
+  GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clapperimport", 0,
+      "Clapper Import");
+
+  gstbasetransform_class->transform = gst_clapper_import_transform;
+
+  bi_class->create_upstream_pool = gst_clapper_import_create_upstream_pool;
+
+  gst_element_class_set_metadata (gstelement_class,
+      "Clapper import",
+      "Filter/Video", "Imports RAW video data into ClapperGdkMemory",
+      "Rafał Dzięgiel <rafostar.github@gmail.com>");
+
+  gst_element_class_add_static_pad_template (gstelement_class,
+      &gst_clapper_import_sink_template);
+  gst_element_class_add_static_pad_template (gstelement_class,
+      &gst_clapper_import_src_template);
+}

lib/gst/plugin/gstclapperimport.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include "gstclapperbaseimport.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CLAPPER_IMPORT (gst_clapper_import_get_type())
+G_DECLARE_FINAL_TYPE (GstClapperImport, gst_clapper_import, GST, CLAPPER_IMPORT, GstClapperBaseImport)
+
+#define GST_CLAPPER_IMPORT_CAST(obj)        ((GstClapperImport *)(obj))
+
+struct _GstClapperImport
+{
+  GstClapperBaseImport parent;
+};
+
+GST_ELEMENT_REGISTER_DECLARE (clapperimport);
+
+G_END_DECLS

lib/gst/plugin/gstclapperpaintable.c

@@ -0,0 +1,635 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstclapperpaintable.h"
+#include "gstclappergdkmemory.h"
+#include "gstgtkutils.h"
+
+#define DEFAULT_PAR_N               1
+#define DEFAULT_PAR_D               1
+
+#define GST_CAT_DEFAULT gst_clapper_paintable_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+typedef struct
+{
+  GdkTexture *texture;
+  GstVideoOverlayRectangle *rectangle;
+
+  gint x, y;
+  guint width, height;
+
+  gboolean used;
+} GstClapperGdkOverlay;
+
+static void
+gst_clapper_gdk_overlay_free (GstClapperGdkOverlay *overlay)
+{
+  GST_TRACE ("Freeing overlay: %" GST_PTR_FORMAT, overlay);
+
+  g_object_unref (overlay->texture);
+  gst_video_overlay_rectangle_unref (overlay->rectangle);
+  g_slice_free (GstClapperGdkOverlay, overlay);
+}
+
+static void gst_clapper_paintable_iface_init (GdkPaintableInterface *iface);
+static void gst_clapper_paintable_dispose (GObject *object);
+static void gst_clapper_paintable_finalize (GObject *object);
+
+#define parent_class gst_clapper_paintable_parent_class
+G_DEFINE_TYPE_WITH_CODE (GstClapperPaintable, gst_clapper_paintable, G_TYPE_OBJECT,
+    G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+        gst_clapper_paintable_iface_init));
+
+static void
+gst_clapper_paintable_class_init (GstClapperPaintableClass *klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *) klass;
+
+  GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clapperpaintable", 0,
+      "Clapper Paintable");
+
+  gobject_class->dispose = gst_clapper_paintable_dispose;
+  gobject_class->finalize = gst_clapper_paintable_finalize;
+}
+
+static void
+gst_clapper_paintable_init (GstClapperPaintable *self)
+{
+  self->par_n = DEFAULT_PAR_N;
+  self->par_d = DEFAULT_PAR_D;
+
+  g_mutex_init (&self->lock);
+  gst_video_info_init (&self->v_info);
+  g_weak_ref_init (&self->widget, NULL);
+
+  self->overlays = g_ptr_array_new_with_free_func (
+      (GDestroyNotify) gst_clapper_gdk_overlay_free);
+
+  gdk_rgba_parse (&self->bg, "black");
+}
+
+static void
+gst_clapper_paintable_dispose (GObject *object)
+{
+  GstClapperPaintable *self = GST_CLAPPER_PAINTABLE (object);
+
+  GST_CLAPPER_PAINTABLE_LOCK (self);
+
+  if (self->draw_id > 0) {
+    g_source_remove (self->draw_id);
+    self->draw_id = 0;
+  }
+
+  GST_CLAPPER_PAINTABLE_UNLOCK (self);
+
+  GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
+}
+
+static void
+gst_clapper_paintable_finalize (GObject *object)
+{
+  GstClapperPaintable *self = GST_CLAPPER_PAINTABLE (object);
+
+  GST_TRACE ("Finalize");
+
+  GST_CLAPPER_PAINTABLE_LOCK (self);
+
+  g_weak_ref_clear (&self->widget);
+
+  gst_clear_buffer (&self->pending_buffer);
+  gst_clear_buffer (&self->buffer);
+
+  g_ptr_array_unref (self->overlays);
+
+  GST_CLAPPER_PAINTABLE_UNLOCK (self);
+
+  g_mutex_clear (&self->lock);
+
+  GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
+}
+
+static gboolean
+calculate_display_par (GstClapperPaintable *self, GstVideoInfo *info)
+{
+  gint width, height, par_n, par_d, req_par_n, req_par_d;
+  gboolean success;
+
+  width = GST_VIDEO_INFO_WIDTH (info);
+  height = GST_VIDEO_INFO_HEIGHT (info);
+
+  /* Cannot apply aspect ratio if there is no video */
+  if (width == 0 || height == 0)
+    return FALSE;
+
+  par_n = GST_VIDEO_INFO_PAR_N (info);
+  par_d = GST_VIDEO_INFO_PAR_D (info);
+
+  req_par_n = self->par_n;
+  req_par_d = self->par_d;
+
+  if (par_n == 0)
+    par_n = 1;
+
+  /* Use defaults if user set zero */
+  if (req_par_n == 0 || req_par_d == 0) {
+    req_par_n = DEFAULT_PAR_N;
+    req_par_d = DEFAULT_PAR_D;
+  }
+
+  GST_LOG_OBJECT (self, "PAR: %u/%u, DAR: %u/%u", par_n, par_d, req_par_n, req_par_d);
+
+  if (!(success = gst_video_calculate_display_ratio (&self->display_ratio_num,
+      &self->display_ratio_den, width, height, par_n, par_d,
+      req_par_n, req_par_d))) {
+    GST_ERROR_OBJECT (self, "Could not calculate display ratio values");
+  }
+
+  return success;
+}
+
+static void
+invalidate_paintable_size_internal (GstClapperPaintable *self)
+{
+  gint video_width, video_height;
+  guint display_ratio_num, display_ratio_den;
+
+  GST_CLAPPER_PAINTABLE_LOCK (self);
+
+  video_width = GST_VIDEO_INFO_WIDTH (&self->v_info);
+  video_height = GST_VIDEO_INFO_HEIGHT (&self->v_info);
+
+  display_ratio_num = self->display_ratio_num;
+  display_ratio_den = self->display_ratio_den;
+
+  GST_CLAPPER_PAINTABLE_UNLOCK (self);
+
+  if (video_height % display_ratio_den == 0) {
+    GST_LOG ("Keeping video height");
+
+    self->display_width = (guint)
+        gst_util_uint64_scale_int (video_height, display_ratio_num, display_ratio_den);
+    self->display_height = video_height;
+  } else if (video_width % display_ratio_num == 0) {
+    GST_LOG ("Keeping video width");
+
+    self->display_width = video_width;
+    self->display_height = (guint)
+        gst_util_uint64_scale_int (video_width, display_ratio_den, display_ratio_num);
+  } else {
+    GST_LOG ("Approximating while keeping video height");
+
+    self->display_width = (guint)
+        gst_util_uint64_scale_int (video_height, display_ratio_num, display_ratio_den);
+    self->display_height = video_height;
+  }
+
+  self->display_aspect_ratio = ((gdouble) self->display_width
+      / (gdouble) self->display_height);
+
+  GST_DEBUG_OBJECT (self, "Invalidate paintable size, display: %dx%d",
+      self->display_width, self->display_height);
+  gdk_paintable_invalidate_size ((GdkPaintable *) self);
+}
+
+static gboolean
+invalidate_paintable_size_on_main_cb (GstClapperPaintable *self)
+{
+  GST_CLAPPER_PAINTABLE_LOCK (self);
+  self->draw_id = 0;
+  GST_CLAPPER_PAINTABLE_UNLOCK (self);
+
+  invalidate_paintable_size_internal (self);
+
+  return G_SOURCE_REMOVE;
+}
+
+static void
+comp_frame_unmap_and_free (GstVideoFrame *frame)
+{
+  gst_video_frame_unmap (frame);
+  g_slice_free (GstVideoFrame, frame);
+}
+
+static GstClapperGdkOverlay *
+_get_cached_overlay (GPtrArray *overlays, GstVideoOverlayRectangle *rectangle, guint *index)
+{
+  guint i;
+
+  for (i = 0; i < overlays->len; i++) {
+    GstClapperGdkOverlay *overlay = g_ptr_array_index (overlays, i);
+
+    if (overlay->rectangle != rectangle)
+      continue;
+
+    *index = i;
+    return overlay;
+  }
+
+  return NULL;
+}
+
+static void
+gst_clapper_paintable_prepare_overlays (GstClapperPaintable *self)
+{
+  GstVideoOverlayCompositionMeta *comp_meta;
+  guint num_overlays, i;
+
+  /* As long as this is called from main thread, no need to lock here */
+  if (G_UNLIKELY (!self->buffer)
+      || !(comp_meta = gst_buffer_get_video_overlay_composition_meta (self->buffer))) {
+    guint n_pending = self->overlays->len;
+
+    /* Remove all cached overlays if new buffer does not have any */
+    if (n_pending > 0) {
+      GST_TRACE ("No overlays in buffer, removing all cached ones");
+      g_ptr_array_remove_range (self->overlays, 0, n_pending);
+    }
+
+    return;
+  }
+
+  GST_LOG_OBJECT (self, "Preparing overlays...");
+
+  /* Mark all old overlays as unused */
+  for (i = 0; i < self->overlays->len; i++) {
+    GstClapperGdkOverlay *overlay = g_ptr_array_index (self->overlays, i);
+    overlay->used = FALSE;
+  }
+
+  num_overlays = gst_video_overlay_composition_n_rectangles (comp_meta->overlay);
+
+  for (i = 0; i < num_overlays; i++) {
+    GdkTexture *texture;
+    GstBuffer *comp_buffer;
+    GstVideoFrame *comp_frame;
+    GstVideoMeta *vmeta;
+    GstVideoInfo vinfo;
+    GstVideoOverlayRectangle *rectangle;
+    GstClapperGdkOverlay *overlay;
+    GstVideoOverlayFormatFlags flags, alpha_flags = 0;
+    gint comp_x, comp_y;
+    guint comp_width, comp_height, cached_index;
+
+    rectangle = gst_video_overlay_composition_get_rectangle (comp_meta->overlay, i);
+
+    if ((overlay = _get_cached_overlay (self->overlays, rectangle, &cached_index))) {
+      overlay->used = TRUE;
+
+      /* Place overlay at expected position */
+      if (i != cached_index) {
+        GST_LOG ("Rearranging overlay position: %u => %u", cached_index, i);
+
+        overlay = g_ptr_array_steal_index_fast (self->overlays, cached_index);
+        g_ptr_array_insert (self->overlays, i, overlay);
+      }
+
+      GST_TRACE ("Reusing cached overlay: %" GST_PTR_FORMAT, overlay);
+      continue;
+    }
+
+    if (G_UNLIKELY (!gst_video_overlay_rectangle_get_render_rectangle (rectangle,
+        &comp_x, &comp_y, &comp_width, &comp_height))) {
+      GST_WARNING ("Invalid overlay rectangle dimensions: %" GST_PTR_FORMAT, rectangle);
+      continue;
+    }
+
+    flags = gst_video_overlay_rectangle_get_flags (rectangle);
+
+    if (flags & GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA)
+      alpha_flags |= GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA;
+
+    comp_buffer = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rectangle, alpha_flags);
+    comp_frame = g_slice_new (GstVideoFrame);
+
+    /* Update overlay video info from video meta */
+    if ((vmeta = gst_buffer_get_video_meta (comp_buffer))) {
+      gst_video_info_set_format (&vinfo, vmeta->format, vmeta->width, vmeta->height);
+      vinfo.stride[0] = vmeta->stride[0];
+    }
+
+    if (G_UNLIKELY (!gst_video_frame_map (comp_frame, &vinfo, comp_buffer, GST_MAP_READ))) {
+      g_slice_free (GstVideoFrame, comp_frame);
+      return;
+    }
+
+    if ((texture = gst_video_frame_into_gdk_texture (
+        comp_frame, (GDestroyNotify) comp_frame_unmap_and_free))) {
+      overlay = g_slice_new (GstClapperGdkOverlay);
+      overlay->texture = texture;
+      overlay->rectangle = gst_video_overlay_rectangle_ref (rectangle);
+      overlay->x = comp_x;
+      overlay->y = comp_y;
+      overlay->width = comp_width;
+      overlay->height = comp_height;
+      overlay->used = TRUE;
+
+      GST_TRACE ("Created overlay: %"
+          GST_PTR_FORMAT ", x: %i, y: %i, width: %u, height: %u",
+          overlay, overlay->x, overlay->y, overlay->width, overlay->height);
+
+      g_ptr_array_insert (self->overlays, i, overlay);
+    }
+  }
+
+  /* Remove all overlays that are not going to be used */
+  for (i = self->overlays->len; i > 0; i--) {
+    GstClapperGdkOverlay *overlay = g_ptr_array_index (self->overlays, i - 1);
+
+    if (!overlay->used) {
+      GST_TRACE ("Removing unused cached overlay: %" GST_PTR_FORMAT, overlay);
+      g_ptr_array_remove (self->overlays, overlay);
+    }
+  }
+
+  if (G_UNLIKELY (num_overlays != self->overlays->len)) {
+    GST_WARNING_OBJECT (self, "Some overlays could not be prepared, %u != %u",
+        num_overlays, self->overlays->len);
+  }
+
+  GST_LOG_OBJECT (self, "Prepared overlays: %u", self->overlays->len);
+}
+
+static gboolean
+update_paintable_on_main_cb (GstClapperPaintable *self)
+{
+  gboolean size_changed;
+
+  GST_CLAPPER_PAINTABLE_LOCK (self);
+
+  /* Check if we will need to invalidate size */
+  if ((size_changed = self->pending_resize))
+    self->pending_resize = FALSE;
+
+  gst_clear_buffer (&self->buffer);
+  self->buffer = self->pending_buffer;
+  self->pending_buffer = NULL;
+
+  self->draw_id = 0;
+
+  GST_CLAPPER_PAINTABLE_UNLOCK (self);
+
+  gst_clapper_paintable_prepare_overlays (self);
+
+  if (size_changed)
+    invalidate_paintable_size_internal (self);
+
+  GST_LOG_OBJECT (self, "Invalidate paintable contents");
+  gdk_paintable_invalidate_contents ((GdkPaintable *) self);
+
+  return G_SOURCE_REMOVE;
+}
+
+GstClapperPaintable *
+gst_clapper_paintable_new (void)
+{
+  return g_object_new (GST_TYPE_CLAPPER_PAINTABLE, NULL);
+}
+
+void
+gst_clapper_paintable_set_widget (GstClapperPaintable *self, GtkWidget *widget)
+{
+  g_weak_ref_set (&self->widget, widget);
+}
+
+void
+gst_clapper_paintable_set_buffer (GstClapperPaintable *self, GstBuffer *buffer)
+{
+  GST_CLAPPER_PAINTABLE_LOCK (self);
+
+  if (self->draw_id > 0) {
+    GST_CLAPPER_PAINTABLE_UNLOCK (self);
+    GST_TRACE ("Already have pending buffer, skipping %" GST_PTR_FORMAT, buffer);
+
+    return;
+  }
+
+  gst_buffer_replace (&self->pending_buffer, buffer);
+  self->draw_id = g_idle_add_full (G_PRIORITY_DEFAULT,
+      (GSourceFunc) update_paintable_on_main_cb, self, NULL);
+
+  GST_CLAPPER_PAINTABLE_UNLOCK (self);
+}
+
+gboolean
+gst_clapper_paintable_set_video_info (GstClapperPaintable *self, GstVideoInfo *v_info)
+{
+  GST_CLAPPER_PAINTABLE_LOCK (self);
+
+  if (gst_video_info_is_equal (&self->v_info, v_info)) {
+    GST_CLAPPER_PAINTABLE_UNLOCK (self);
+    return TRUE;
+  }
+
+  /* Reject info if values would cause integer overflow */
+  if (G_UNLIKELY (!calculate_display_par (self, v_info))) {
+    GST_CLAPPER_PAINTABLE_UNLOCK (self);
+    return FALSE;
+  }
+
+  self->pending_resize = TRUE;
+  self->v_info = *v_info;
+
+  GST_CLAPPER_PAINTABLE_UNLOCK (self);
+
+  return TRUE;
+}
+
+void
+gst_clapper_paintable_set_pixel_aspect_ratio (GstClapperPaintable *self,
+    gint par_n, gint par_d)
+{
+  gboolean success;
+
+  GST_CLAPPER_PAINTABLE_LOCK (self);
+
+  /* No change */
+  if (self->par_n == par_n && self->par_d == par_d) {
+    GST_CLAPPER_PAINTABLE_UNLOCK (self);
+    return;
+  }
+
+  self->par_n = par_n;
+  self->par_d = par_d;
+
+  /* Check if we can accept new values. This will update
+   * display `ratio_num` and `ratio_den` only when successful */
+  success = calculate_display_par (self, &self->v_info);
+
+  /* If paintable update is queued, wait for it, otherwise invalidate
+   * size only for change to be applied even when paused */
+  if (!success || self->draw_id > 0) {
+    GST_CLAPPER_PAINTABLE_UNLOCK (self);
+    return;
+  }
+
+  self->draw_id = g_idle_add_full (G_PRIORITY_DEFAULT,
+      (GSourceFunc) invalidate_paintable_size_on_main_cb, self, NULL);
+
+  GST_CLAPPER_PAINTABLE_UNLOCK (self);
+
+  return;
+}
+
+/*
+ * GdkPaintableInterface
+ */
+static void
+gst_clapper_paintable_snapshot_internal (GstClapperPaintable *self,
+    GdkSnapshot *snapshot, gdouble width, gdouble height,
+    gint widget_width, gint widget_height)
+{
+  GstMemory *memory;
+  GstMapInfo info;
+  gfloat scale_x, scale_y;
+  guint i;
+
+  scale_x = (gfloat) width / self->display_width;
+  scale_y = (gfloat) height / self->display_height;
+
+  /* Apply black borders when keeping aspect ratio */
+  if (scale_x == scale_y || abs (scale_x - scale_y) <= FLT_EPSILON) {
+    if (widget_height - height > 0) {
+      gdouble bar_height = (widget_height - height) / 2;
+
+      gtk_snapshot_append_color (snapshot, &self->bg, &GRAPHENE_RECT_INIT (0, 0, width, -bar_height));
+      gtk_snapshot_append_color (snapshot, &self->bg, &GRAPHENE_RECT_INIT (0, height, width, bar_height + 0.5));
+    } else if (widget_width - width > 0) {
+      gdouble bar_width = (widget_width - width) / 2;
+
+      gtk_snapshot_append_color (snapshot, &self->bg, &GRAPHENE_RECT_INIT (0, 0, -bar_width, height));
+      gtk_snapshot_append_color (snapshot, &self->bg, &GRAPHENE_RECT_INIT (width, 0, bar_width + 0.5, height));
+    }
+  }
+
+  /* Buffer is accessed only from main thread, so no locking required */
+  if (!self->buffer) {
+    gtk_snapshot_append_color (snapshot, &self->bg, &GRAPHENE_RECT_INIT (0, 0, width, height));
+    return;
+  }
+
+  GST_TRACE ("Snapshot %" GST_PTR_FORMAT, self->buffer);
+
+  memory = gst_buffer_peek_memory (self->buffer, 0);
+
+  /* If we cannot map, just draw black */
+  if (G_UNLIKELY (!gst_memory_map (memory, &info, GST_MAP_READ))) {
+    gtk_snapshot_append_color (snapshot, &self->bg, &GRAPHENE_RECT_INIT (0, 0, width, height));
+    GST_WARNING_OBJECT (self, "Could not map %" GST_PTR_FORMAT, self->buffer);
+
+    return;
+  }
+
+  gtk_snapshot_append_texture (snapshot,
+      GST_CLAPPER_GDK_MEMORY_CAST (memory)->texture,
+      &GRAPHENE_RECT_INIT (0, 0, width, height));
+  gst_memory_unmap (memory, &info);
+
+  /* FIXME: Draw black BG here when import format has-alpha */
+  //gtk_snapshot_append_color (snapshot, &self->bg, &GRAPHENE_RECT_INIT (0, 0, width, height));
+
+  /* Finally append prepared overlays */
+  for (i = 0; i < self->overlays->len; i++) {
+    GstClapperGdkOverlay *overlay = g_ptr_array_index (self->overlays, i);
+
+    gtk_snapshot_append_texture (snapshot, overlay->texture,
+        &GRAPHENE_RECT_INIT (overlay->x * scale_x, overlay->y * scale_y,
+            overlay->width * scale_x, overlay->height * scale_y));
+  }
+}
+
+static void
+gst_clapper_paintable_snapshot (GdkPaintable *paintable,
+    GdkSnapshot *snapshot, gdouble width, gdouble height)
+{
+  GstClapperPaintable *self = GST_CLAPPER_PAINTABLE_CAST (paintable);
+  GtkWidget *widget;
+  gint widget_width = 0, widget_height = 0;
+
+  if ((widget = g_weak_ref_get (&self->widget))) {
+    widget_width = gtk_widget_get_width (widget);
+    widget_height = gtk_widget_get_height (widget);
+
+    g_object_unref (widget);
+  }
+
+  gst_clapper_paintable_snapshot_internal (self, snapshot,
+      width, height, widget_width, widget_height);
+}
+
+static GdkPaintable *
+gst_clapper_paintable_get_current_image (GdkPaintable *paintable)
+{
+  GstClapperPaintable *self = GST_CLAPPER_PAINTABLE_CAST (paintable);
+
+  if (self->buffer) {
+    GtkSnapshot *snapshot;
+    GdkPaintable *ret;
+
+    snapshot = gtk_snapshot_new ();
+
+    /* Snapshot without widget size in order to get
+     * paintable without black borders */
+    gst_clapper_paintable_snapshot_internal (self, snapshot,
+        self->display_width, self->display_height, 0, 0);
+
+    if ((ret = gtk_snapshot_free_to_paintable (snapshot, NULL)))
+      return ret;
+  }
+
+  return gdk_paintable_new_empty (0, 0);
+}
+
+static gint
+gst_clapper_paintable_get_intrinsic_width (GdkPaintable *paintable)
+{
+  GstClapperPaintable *self = GST_CLAPPER_PAINTABLE_CAST (paintable);
+
+  return self->display_width;
+}
+
+static gint
+gst_clapper_paintable_get_intrinsic_height (GdkPaintable *paintable)
+{
+  GstClapperPaintable *self = GST_CLAPPER_PAINTABLE_CAST (paintable);
+
+  return self->display_height;
+}
+
+static gdouble
+gst_clapper_paintable_get_intrinsic_aspect_ratio (GdkPaintable *paintable)
+{
+  GstClapperPaintable *self = GST_CLAPPER_PAINTABLE_CAST (paintable);
+
+  return self->display_aspect_ratio;
+}
+
+static void
+gst_clapper_paintable_iface_init (GdkPaintableInterface *iface)
+{
+  iface->snapshot = gst_clapper_paintable_snapshot;
+  iface->get_current_image = gst_clapper_paintable_get_current_image;
+  iface->get_intrinsic_width = gst_clapper_paintable_get_intrinsic_width;
+  iface->get_intrinsic_height = gst_clapper_paintable_get_intrinsic_height;
+  iface->get_intrinsic_aspect_ratio = gst_clapper_paintable_get_intrinsic_aspect_ratio;
+}

lib/gst/plugin/gstclapperpaintable.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <gtk/gtk.h>
+#include <gst/gst.h>
+#include <gst/video/video.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CLAPPER_PAINTABLE (gst_clapper_paintable_get_type())
+G_DECLARE_FINAL_TYPE (GstClapperPaintable, gst_clapper_paintable, GST, CLAPPER_PAINTABLE, GObject)
+
+#define GST_CLAPPER_PAINTABLE_CAST(obj)          ((GstClapperPaintable *)(obj))
+
+#define GST_CLAPPER_PAINTABLE_GET_LOCK(obj)      (&GST_CLAPPER_PAINTABLE_CAST(obj)->lock)
+#define GST_CLAPPER_PAINTABLE_LOCK(obj)          g_mutex_lock (GST_CLAPPER_PAINTABLE_GET_LOCK(obj))
+#define GST_CLAPPER_PAINTABLE_UNLOCK(obj)        g_mutex_unlock (GST_CLAPPER_PAINTABLE_GET_LOCK(obj))
+
+struct _GstClapperPaintable
+{
+  GObject parent;
+
+  GMutex lock;
+
+  GstBuffer *pending_buffer, *buffer;
+  GPtrArray *overlays;
+  GstVideoInfo v_info;
+
+  GdkRGBA bg;
+
+  GWeakRef widget;
+
+  /* Sink properties */
+  gint par_n, par_d;
+
+  /* Resize */
+  gboolean pending_resize;
+  guint display_ratio_num;
+  guint display_ratio_den;
+
+  /* GdkPaintableInterface */
+  gint display_width;
+  gint display_height;
+  gdouble display_aspect_ratio;
+
+  /* Pending draw signal id */
+  guint draw_id;
+};
+
+GstClapperPaintable * gst_clapper_paintable_new                    (void);
+void                  gst_clapper_paintable_set_widget             (GstClapperPaintable *paintable, GtkWidget *widget);
+void                  gst_clapper_paintable_set_buffer             (GstClapperPaintable *paintable, GstBuffer *buffer);
+gboolean              gst_clapper_paintable_set_video_info         (GstClapperPaintable *paintable, GstVideoInfo *v_info);
+void                  gst_clapper_paintable_set_pixel_aspect_ratio (GstClapperPaintable *paintable, gint par_n, gint par_d);
+
+G_END_DECLS

lib/gst/plugin/gstclappersink.c

@@ -0,0 +1,838 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstclappersink.h"
+#include "gstclappergdkmemory.h"
+#include "gstclappergdkbufferpool.h"
+#include "gstgtkutils.h"
+
+#define DEFAULT_FORCE_ASPECT_RATIO  TRUE
+#define DEFAULT_PAR_N               1
+#define DEFAULT_PAR_D               1
+#define DEFAULT_KEEP_LAST_FRAME     FALSE
+
+#define WINDOW_CSS_CLASS_NAME       "clappersinkwindow"
+
+enum
+{
+  PROP_0,
+  PROP_WIDGET,
+  PROP_FORCE_ASPECT_RATIO,
+  PROP_PIXEL_ASPECT_RATIO,
+  PROP_KEEP_LAST_FRAME,
+  PROP_LAST
+};
+
+#define GST_CAT_DEFAULT gst_clapper_sink_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+static GstStaticPadTemplate gst_clapper_sink_template =
+    GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_CLAPPER_GDK_MEMORY,
+            "{ " GST_CLAPPER_GDK_MEMORY_FORMATS ", NV12 }")
+        "; "
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_CLAPPER_GDK_MEMORY ", "
+            GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
+            "{ " GST_CLAPPER_GDK_MEMORY_FORMATS ", NV12 }")));
+
+static void gst_clapper_sink_navigation_interface_init (
+    GstNavigationInterface *iface);
+
+#define parent_class gst_clapper_sink_parent_class
+G_DEFINE_TYPE_WITH_CODE (GstClapperSink, gst_clapper_sink, GST_TYPE_VIDEO_SINK,
+    G_IMPLEMENT_INTERFACE (GST_TYPE_NAVIGATION,
+        gst_clapper_sink_navigation_interface_init));
+GST_ELEMENT_REGISTER_DEFINE (clappersink, "clappersink", GST_RANK_NONE,
+    GST_TYPE_CLAPPER_SINK);
+
+static void
+window_clear_no_lock (GstClapperSink *self)
+{
+  if (!self->window)
+    return;
+
+  GST_TRACE_OBJECT (self, "Window clear");
+
+  if (self->window_destroy_id) {
+    g_signal_handler_disconnect (self->window, self->window_destroy_id);
+    self->window_destroy_id = 0;
+  }
+  self->window = NULL;
+}
+
+static void
+widget_clear_no_lock (GstClapperSink *self)
+{
+  if (!self->widget)
+    return;
+
+  GST_TRACE_OBJECT (self, "Widget clear");
+
+  if (self->widget_destroy_id) {
+    g_signal_handler_disconnect (self->widget, self->widget_destroy_id);
+    self->widget_destroy_id = 0;
+  }
+  g_clear_object (&self->widget);
+}
+
+static void
+widget_destroy_cb (GtkWidget *widget, GstClapperSink *self)
+{
+  GST_CLAPPER_SINK_LOCK (self);
+  widget_clear_no_lock (self);
+  GST_CLAPPER_SINK_UNLOCK (self);
+}
+
+static void
+window_destroy_cb (GtkWidget *window, GstClapperSink *self)
+{
+  GST_DEBUG_OBJECT (self, "Window destroy");
+
+  GST_CLAPPER_SINK_LOCK (self);
+
+  widget_clear_no_lock (self);
+  window_clear_no_lock (self);
+
+  GST_CLAPPER_SINK_UNLOCK (self);
+}
+
+static void
+calculate_stream_coords (GstClapperSink *self, GtkWidget *widget,
+    gdouble x, gdouble y, gdouble *stream_x, gdouble *stream_y)
+{
+  GstVideoRectangle result;
+  gint scaled_width, scaled_height, scale_factor;
+  gint video_width, video_height;
+  gboolean force_aspect_ratio;
+
+  GST_CLAPPER_SINK_LOCK (self);
+
+  video_width = GST_VIDEO_INFO_WIDTH (&self->v_info);
+  video_height = GST_VIDEO_INFO_HEIGHT (&self->v_info);
+  force_aspect_ratio = self->force_aspect_ratio;
+
+  GST_CLAPPER_SINK_UNLOCK (self);
+
+  scale_factor = gtk_widget_get_scale_factor (widget);
+  scaled_width = gtk_widget_get_width (widget) * scale_factor;
+  scaled_height = gtk_widget_get_height (widget) * scale_factor;
+
+  if (force_aspect_ratio) {
+    GstVideoRectangle src, dst;
+
+    src.x = 0;
+    src.y = 0;
+    src.w = gdk_paintable_get_intrinsic_width ((GdkPaintable *) self->paintable);
+    src.h = gdk_paintable_get_intrinsic_height ((GdkPaintable *) self->paintable);
+
+    dst.x = 0;
+    dst.y = 0;
+    dst.w = scaled_width;
+    dst.h = scaled_height;
+
+    gst_video_center_rect (&src, &dst, &result, TRUE);
+  } else {
+    result.x = 0;
+    result.y = 0;
+    result.w = scaled_width;
+    result.h = scaled_height;
+  }
+
+  /* Display coordinates to stream coordinates */
+  *stream_x = (result.w > 0)
+      ? (x - result.x) / result.w * video_width
+      : 0;
+  *stream_y = (result.h > 0)
+      ? (y - result.y) / result.h * video_height
+      : 0;
+
+  /* Clip to stream size */
+  *stream_x = CLAMP (*stream_x, 0, video_width);
+  *stream_y = CLAMP (*stream_y, 0, video_height);
+
+  GST_LOG ("Transform coords %fx%f => %fx%f", x, y, *stream_x, *stream_y);
+}
+
+static void
+gst_clapper_sink_widget_motion_event (GtkEventControllerMotion *motion,
+    gdouble x, gdouble y, GstClapperSink *self)
+{
+  GtkWidget *widget;
+  gdouble stream_x, stream_y;
+
+  if ((x == self->last_pos_x && y == self->last_pos_y)
+      || GST_STATE (self) < GST_STATE_PLAYING)
+    return;
+
+  self->last_pos_x = x;
+  self->last_pos_y = y;
+
+  widget = gtk_event_controller_get_widget ((GtkEventController *) motion);
+  calculate_stream_coords (self, widget, x, y, &stream_x, &stream_y);
+  GST_LOG ("Event \"mouse-move\", x: %f, y: %f", stream_x, stream_y);
+
+  gst_navigation_send_mouse_event ((GstNavigation *) self, "mouse-move",
+      0, stream_x, stream_y);
+}
+
+static void
+gst_clapper_sink_widget_button_event (GtkGestureClick *click,
+    gint n_press, gdouble x, gdouble y, GstClapperSink *self)
+{
+  GtkWidget *widget;
+  GdkEvent *event;
+  gdouble stream_x, stream_y;
+  GdkEventType event_type;
+  const gchar *event_name;
+
+  if (GST_STATE (self) < GST_STATE_PLAYING)
+    return;
+
+  event = gtk_event_controller_get_current_event ((GtkEventController *) click);
+  event_type = gdk_event_get_event_type (event);
+
+  /* FIXME: Touchscreen handling should probably use new touch events from GStreamer 1.22 */
+  event_name = (event_type == GDK_BUTTON_PRESS || event_type == GDK_TOUCH_BEGIN)
+      ? "mouse-button-press"
+      : (event_type == GDK_BUTTON_RELEASE || event_type == GDK_TOUCH_END)
+      ? "mouse-button-release"
+      : NULL;
+
+  /* Can be NULL on touch */
+  if (!event_name)
+    return;
+
+  widget = gtk_event_controller_get_widget ((GtkEventController *) click);
+  calculate_stream_coords (self, widget, x, y, &stream_x, &stream_y);
+  GST_LOG ("Event \"%s\", x: %f, y: %f", event_name, stream_x, stream_y);
+
+  /* Gesture is set to handle only primary button, so we do not have to check */
+  gst_navigation_send_mouse_event ((GstNavigation *) self, event_name,
+      1, stream_x, stream_y);
+}
+
+/* Must call from main thread only with a lock */
+static GtkWidget *
+gst_clapper_sink_get_widget (GstClapperSink *self)
+{
+  if (G_UNLIKELY (!self->widget)) {
+    GtkEventController *controller;
+    GtkGesture *gesture;
+
+    /* Make sure GTK is initialized */
+    if (!gtk_init_check ()) {
+      GST_ERROR_OBJECT (self, "Could not ensure GTK initialization");
+      return NULL;
+    }
+
+    self->widget = gtk_picture_new ();
+
+    /* Otherwise widget in grid will appear as a 1x1px
+     * video which might be misleading for users */
+    gtk_widget_set_hexpand (self->widget, TRUE);
+    gtk_widget_set_vexpand (self->widget, TRUE);
+
+    gtk_widget_set_focusable (self->widget, TRUE);
+    gtk_widget_set_can_focus (self->widget, TRUE);
+
+    controller = gtk_event_controller_motion_new ();
+    g_signal_connect (controller, "motion",
+        G_CALLBACK (gst_clapper_sink_widget_motion_event), self);
+    gtk_widget_add_controller (self->widget, controller);
+
+    gesture = gtk_gesture_click_new ();
+    gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), 1);
+    g_signal_connect (gesture, "pressed",
+        G_CALLBACK (gst_clapper_sink_widget_button_event), self);
+    g_signal_connect (gesture, "released",
+        G_CALLBACK (gst_clapper_sink_widget_button_event), self);
+    gtk_widget_add_controller (self->widget, GTK_EVENT_CONTROLLER (gesture));
+
+    /* TODO: Implement touch events once we depend on GStreamer 1.22 */
+
+    /* Take floating ref */
+    g_object_ref_sink (self->widget);
+
+    /* Set back pointer */
+    gst_clapper_paintable_set_widget (self->paintable, self->widget);
+
+    /* Set earlier remembered property */
+    gtk_picture_set_keep_aspect_ratio (GTK_PICTURE (self->widget),
+        self->force_aspect_ratio);
+
+    gtk_picture_set_paintable (GTK_PICTURE (self->widget), GDK_PAINTABLE (self->paintable));
+
+    self->widget_destroy_id = g_signal_connect (self->widget,
+        "destroy", G_CALLBACK (widget_destroy_cb), self);
+  }
+
+  return self->widget;
+}
+
+static GtkWidget *
+gst_clapper_sink_obtain_widget (GstClapperSink *self)
+{
+  GtkWidget *widget;
+
+  GST_CLAPPER_SINK_LOCK (self);
+  widget = gst_clapper_sink_get_widget (self);
+  if (widget)
+    g_object_ref (widget);
+  GST_CLAPPER_SINK_UNLOCK (self);
+
+  return widget;
+}
+
+static void
+gst_clapper_sink_get_property (GObject *object, guint prop_id,
+    GValue *value, GParamSpec *pspec)
+{
+  GstClapperSink *self = GST_CLAPPER_SINK_CAST (object);
+
+  GST_CLAPPER_SINK_LOCK (self);
+
+  switch (prop_id) {
+    case PROP_WIDGET:
+      if (self->widget) {
+        g_value_set_object (value, self->widget);
+      } else {
+        GtkWidget *widget;
+
+        GST_CLAPPER_SINK_UNLOCK (self);
+        widget = gst_gtk_invoke_on_main ((GThreadFunc) gst_clapper_sink_obtain_widget, self);
+        GST_CLAPPER_SINK_LOCK (self);
+
+        g_value_set_object (value, widget);
+        g_object_unref (widget);
+      }
+      break;
+    case PROP_FORCE_ASPECT_RATIO:
+      g_value_set_boolean (value, self->force_aspect_ratio);
+      break;
+    case PROP_PIXEL_ASPECT_RATIO:
+      gst_value_set_fraction (value, self->par_n, self->par_d);
+      break;
+    case PROP_KEEP_LAST_FRAME:
+      g_value_set_boolean (value, self->keep_last_frame);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+
+  GST_CLAPPER_SINK_UNLOCK (self);
+}
+
+static void
+gst_clapper_sink_set_property (GObject *object, guint prop_id,
+    const GValue *value, GParamSpec *pspec)
+{
+  GstClapperSink *self = GST_CLAPPER_SINK_CAST (object);
+
+  GST_CLAPPER_SINK_LOCK (self);
+
+  switch (prop_id) {
+    case PROP_FORCE_ASPECT_RATIO:
+      self->force_aspect_ratio = g_value_get_boolean (value);
+
+      if (self->widget) {
+        gtk_picture_set_keep_aspect_ratio (GTK_PICTURE (self->widget),
+            self->force_aspect_ratio);
+      }
+      break;
+    case PROP_PIXEL_ASPECT_RATIO:
+      self->par_n = gst_value_get_fraction_numerator (value);
+      self->par_d = gst_value_get_fraction_denominator (value);
+
+      gst_clapper_paintable_set_pixel_aspect_ratio (self->paintable,
+          self->par_n, self->par_d);
+      break;
+    case PROP_KEEP_LAST_FRAME:
+      self->keep_last_frame = g_value_get_boolean (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+
+  GST_CLAPPER_SINK_UNLOCK (self);
+}
+
+static void
+gst_clapper_sink_navigation_send_event (GstNavigation *navigation,
+    GstStructure *structure)
+{
+  GstClapperSink *sink = GST_CLAPPER_SINK_CAST (navigation);
+  GstEvent *event;
+
+  GST_TRACE_OBJECT (sink, "Navigation event: %" GST_PTR_FORMAT, structure);
+  event = gst_event_new_navigation (structure);
+
+  if (G_LIKELY (event)) {
+    GstPad *pad;
+
+    pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (sink));
+
+    if (G_LIKELY (pad)) {
+      if (!gst_pad_send_event (pad, gst_event_ref (event))) {
+        /* If upstream didn't handle the event we'll post a message with it
+         * for the application in case it wants to do something with it */
+        gst_element_post_message (GST_ELEMENT_CAST (sink),
+            gst_navigation_message_new_event (GST_OBJECT_CAST (sink), event));
+      }
+      gst_object_unref (pad);
+    }
+    gst_event_unref (event);
+  }
+}
+
+static gboolean
+gst_clapper_sink_propose_allocation (GstBaseSink *bsink, GstQuery *query)
+{
+  GstClapperSink *self = GST_CLAPPER_SINK_CAST (bsink);
+  GstBufferPool *pool = NULL;
+  GstCaps *caps;
+  GstVideoInfo info;
+  guint size;
+  gboolean need_pool;
+
+  gst_query_parse_allocation (query, &caps, &need_pool);
+
+  if (!caps) {
+    GST_DEBUG_OBJECT (self, "No caps specified");
+    return FALSE;
+  }
+
+  if (!gst_video_info_from_caps (&info, caps)) {
+    GST_DEBUG_OBJECT (self, "Invalid caps specified");
+    return FALSE;
+  }
+
+  /* Normal size of a frame */
+  size = GST_VIDEO_INFO_SIZE (&info);
+
+  if (need_pool) {
+    GstStructure *config;
+
+    GST_DEBUG_OBJECT (self, "Creating new pool");
+
+    pool = gst_clapper_gdk_buffer_pool_new ();
+    config = gst_buffer_pool_get_config (pool);
+
+    gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
+    gst_buffer_pool_config_set_params (config, caps, size, 2, 0);
+
+    if (!gst_buffer_pool_set_config (pool, config)) {
+      gst_object_unref (pool);
+
+      GST_DEBUG_OBJECT (self, "Failed to set config");
+      return FALSE;
+    }
+  }
+
+  gst_query_add_allocation_pool (query, pool, size, 2, 0);
+  if (pool)
+    gst_object_unref (pool);
+
+  gst_query_add_allocation_meta (query,
+      GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
+
+  /* We also support various metadata */
+  gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
+
+  return TRUE;
+}
+
+static gboolean
+gst_clapper_sink_start_on_main (GstClapperSink *self)
+{
+  GtkWidget *widget;
+
+  GST_CLAPPER_SINK_LOCK (self);
+
+  /* Make sure widget is created */
+  if (!(widget = gst_clapper_sink_get_widget (self))) {
+    GST_CLAPPER_SINK_UNLOCK (self);
+
+    return FALSE;
+  }
+
+  /* When no toplevel window, make our own */
+  if (G_UNLIKELY (!gtk_widget_get_root (widget) && !self->window)) {
+    GtkWidget *toplevel, *parent;
+    GtkCssProvider *provider;
+    gchar *win_title;
+
+    if ((parent = gtk_widget_get_parent (widget))) {
+      GtkWidget *temp_parent;
+
+      while ((temp_parent = gtk_widget_get_parent (parent)))
+        parent = temp_parent;
+    }
+    toplevel = (parent) ? parent : widget;
+
+    self->window = (GtkWindow *) gtk_window_new ();
+    gtk_widget_add_css_class (GTK_WIDGET (self->window), WINDOW_CSS_CLASS_NAME);
+
+    provider = gtk_css_provider_new ();
+    gtk_css_provider_load_from_data (provider,
+        "." WINDOW_CSS_CLASS_NAME " { background: none; }", -1);
+    gtk_style_context_add_provider_for_display (
+        gdk_display_get_default (), GTK_STYLE_PROVIDER (provider),
+        GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+    g_object_unref (provider);
+
+    win_title = g_strdup_printf ("Clapper Sink - GTK %u.%u.%u Window",
+        gtk_get_major_version (),
+        gtk_get_minor_version (),
+        gtk_get_micro_version ());
+
+    gtk_window_set_default_size (self->window, 640, 480);
+    gtk_window_set_title (self->window, win_title);
+    gtk_window_set_child (self->window, toplevel);
+
+    g_free (win_title);
+
+    self->window_destroy_id = g_signal_connect (self->window,
+        "destroy", G_CALLBACK (window_destroy_cb), self);
+  }
+
+  GST_CLAPPER_SINK_UNLOCK (self);
+
+  return TRUE;
+}
+
+static gboolean
+window_present_on_main_idle (GtkWindow *window)
+{
+  GST_INFO ("Presenting window");
+  gtk_window_present (window);
+
+  return G_SOURCE_REMOVE;
+}
+
+static gboolean
+gst_clapper_sink_start (GstBaseSink *bsink)
+{
+  GstClapperSink *self = GST_CLAPPER_SINK_CAST (bsink);
+
+  GST_INFO_OBJECT (self, "Start");
+
+  if (G_UNLIKELY (!(! !gst_gtk_invoke_on_main ((GThreadFunc) (GCallback)
+      gst_clapper_sink_start_on_main, self)))) {
+    GST_ELEMENT_ERROR (self, RESOURCE, NOT_FOUND,
+        ("GtkWidget could not be created"), (NULL));
+
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+static gboolean
+gst_clapper_sink_stop_on_main (GstClapperSink *self)
+{
+  GtkWindow *window = NULL;
+
+  GST_CLAPPER_SINK_LOCK (self);
+  if (self->window)
+    window = g_object_ref (self->window);
+  GST_CLAPPER_SINK_UNLOCK (self);
+
+  if (window) {
+    gtk_window_destroy (window);
+    g_object_unref (window);
+  }
+
+  return TRUE;
+}
+
+static gboolean
+gst_clapper_sink_stop (GstBaseSink *bsink)
+{
+  GstClapperSink *self = GST_CLAPPER_SINK_CAST (bsink);
+  gboolean has_window;
+
+  GST_INFO_OBJECT (self, "Stop");
+
+  GST_CLAPPER_SINK_LOCK (self);
+  has_window = (self->window != NULL);
+  GST_CLAPPER_SINK_UNLOCK (self);
+
+  if (G_UNLIKELY (has_window)) {
+    return (! !gst_gtk_invoke_on_main ((GThreadFunc) (GCallback)
+        gst_clapper_sink_stop_on_main, self));
+  }
+
+  return TRUE;
+}
+
+static GstStateChangeReturn
+gst_clapper_sink_change_state (GstElement *element, GstStateChange transition)
+{
+  GstClapperSink *self = GST_CLAPPER_SINK_CAST (element);
+
+  GST_DEBUG_OBJECT (self, "Changing state: %s => %s",
+      gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
+      gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
+
+  switch (transition) {
+    case GST_STATE_CHANGE_PAUSED_TO_READY:
+      GST_CLAPPER_SINK_LOCK (self);
+      if (!self->keep_last_frame)
+        gst_clapper_paintable_set_buffer (self->paintable, NULL);
+      GST_CLAPPER_SINK_UNLOCK (self);
+      break;
+    case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
+      GST_CLAPPER_SINK_LOCK (self);
+      if (G_UNLIKELY (self->window && !self->presented_window)) {
+        g_idle_add_full (G_PRIORITY_DEFAULT,
+            (GSourceFunc) window_present_on_main_idle,
+            g_object_ref (self->window), (GDestroyNotify) g_object_unref);
+        self->presented_window = TRUE;
+      }
+      GST_CLAPPER_SINK_UNLOCK (self);
+      break;
+    default:
+      break;
+  }
+
+  return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+}
+
+static void
+gst_clapper_sink_get_times (GstBaseSink *bsink, GstBuffer *buffer,
+    GstClockTime *start, GstClockTime *end)
+{
+  if (!GST_BUFFER_TIMESTAMP_IS_VALID (buffer))
+    return;
+
+  *start = GST_BUFFER_TIMESTAMP (buffer);
+
+  if (GST_BUFFER_DURATION_IS_VALID (buffer)) {
+    *end = *start + GST_BUFFER_DURATION (buffer);
+  } else {
+    GstClapperSink *self = GST_CLAPPER_SINK_CAST (bsink);
+    gint fps_n, fps_d;
+
+    GST_CLAPPER_SINK_LOCK (self);
+    fps_n = GST_VIDEO_INFO_FPS_N (&self->v_info);
+    fps_d = GST_VIDEO_INFO_FPS_D (&self->v_info);
+    GST_CLAPPER_SINK_UNLOCK (self);
+
+    if (fps_n > 0)
+      *end = *start + gst_util_uint64_scale_int (GST_SECOND, fps_d, fps_n);
+  }
+}
+
+static GstCaps *
+gst_clapper_sink_get_caps (GstBaseSink *bsink, GstCaps *filter)
+{
+  GstCaps *result, *tmp;
+
+  tmp = gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD (bsink));
+
+  if (filter) {
+    GST_DEBUG ("Intersecting with filter caps: %" GST_PTR_FORMAT, filter);
+    result = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
+    gst_caps_unref (tmp);
+  } else {
+    result = tmp;
+  }
+  GST_DEBUG ("Returning caps: %" GST_PTR_FORMAT, result);
+
+  return result;
+}
+
+static gboolean
+gst_clapper_sink_set_caps (GstBaseSink *bsink, GstCaps *caps)
+{
+  GstClapperSink *self = GST_CLAPPER_SINK_CAST (bsink);
+  gboolean res;
+
+  GST_INFO_OBJECT (self, "Set caps: %" GST_PTR_FORMAT, caps);
+  GST_CLAPPER_SINK_LOCK (self);
+
+  if (!gst_video_info_from_caps (&self->v_info, caps)) {
+    GST_CLAPPER_SINK_UNLOCK (self);
+    return FALSE;
+  }
+
+  if (G_UNLIKELY (!self->widget)) {
+    GST_CLAPPER_SINK_UNLOCK (self);
+    GST_ELEMENT_ERROR (self, RESOURCE, NOT_FOUND,
+        ("Output widget was destroyed"), (NULL));
+
+    return FALSE;
+  }
+
+  res = gst_clapper_paintable_set_video_info (self->paintable, &self->v_info);
+  GST_CLAPPER_SINK_UNLOCK (self);
+
+  return res;
+}
+
+static GstFlowReturn
+gst_clapper_sink_show_frame (GstVideoSink *vsink, GstBuffer *buffer)
+{
+  GstClapperSink *self = GST_CLAPPER_SINK_CAST (vsink);
+
+  GST_TRACE ("Got %" GST_PTR_FORMAT, buffer);
+  GST_CLAPPER_SINK_LOCK (self);
+
+  if (G_UNLIKELY (!self->widget)) {
+    GST_CLAPPER_SINK_UNLOCK (self);
+    GST_ELEMENT_ERROR (self, RESOURCE, NOT_FOUND,
+        ("Output widget was destroyed"), (NULL));
+
+    return GST_FLOW_ERROR;
+  }
+
+  gst_clapper_paintable_set_buffer (self->paintable, buffer);
+  GST_CLAPPER_SINK_UNLOCK (self);
+
+  return GST_FLOW_OK;
+}
+
+static void
+gst_clapper_sink_init (GstClapperSink *self)
+{
+  GObjectClass *gobject_class;
+
+  gobject_class = (GObjectClass *) GST_CLAPPER_SINK_GET_CLASS (self);
+
+  /* HACK: install here instead of class init to avoid GStreamer
+   * plugin scanner GObject type conflicts with older GTK versions */
+  if (!g_object_class_find_property (gobject_class, "widget")) {
+    g_object_class_install_property (gobject_class, PROP_WIDGET,
+        g_param_spec_object ("widget", "GTK Widget",
+            "The GtkWidget to place in the widget hierarchy",
+            GTK_TYPE_WIDGET, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+  }
+
+  self->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
+  self->par_n = DEFAULT_PAR_N;
+  self->par_d = DEFAULT_PAR_D;
+  self->keep_last_frame = DEFAULT_KEEP_LAST_FRAME;
+
+  g_mutex_init (&self->lock);
+  gst_video_info_init (&self->v_info);
+
+  self->paintable = gst_clapper_paintable_new ();
+}
+
+static void
+gst_clapper_sink_dispose (GObject *object)
+{
+  GstClapperSink *self = GST_CLAPPER_SINK_CAST (object);
+
+  GST_CLAPPER_SINK_LOCK (self);
+
+  window_clear_no_lock (self);
+  widget_clear_no_lock (self);
+
+  g_clear_object (&self->paintable);
+
+  GST_CLAPPER_SINK_UNLOCK (self);
+
+  GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
+}
+
+static void
+gst_clapper_sink_finalize (GObject *object)
+{
+  GstClapperSink *self = GST_CLAPPER_SINK_CAST (object);
+
+  GST_TRACE ("Finalize");
+
+  g_mutex_clear (&self->lock);
+
+  GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
+}
+
+static void
+gst_clapper_sink_class_init (GstClapperSinkClass *klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *) klass;
+  GstElementClass *gstelement_class = (GstElementClass *) klass;
+  GstBaseSinkClass *gstbasesink_class = (GstBaseSinkClass *) klass;
+  GstVideoSinkClass *gstvideosink_class = (GstVideoSinkClass *) klass;
+
+  GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clappersink", 0,
+      "Clapper Sink");
+
+  gobject_class->get_property = gst_clapper_sink_get_property;
+  gobject_class->set_property = gst_clapper_sink_set_property;
+  gobject_class->dispose = gst_clapper_sink_dispose;
+  gobject_class->finalize = gst_clapper_sink_finalize;
+
+  g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
+      g_param_spec_boolean ("force-aspect-ratio", "Force aspect ratio",
+          "When enabled, scaling will respect original aspect ratio",
+          DEFAULT_FORCE_ASPECT_RATIO,
+          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_property (gobject_class, PROP_PIXEL_ASPECT_RATIO,
+      gst_param_spec_fraction ("pixel-aspect-ratio", "Pixel Aspect Ratio",
+          "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));
+
+  g_object_class_install_property (gobject_class, PROP_KEEP_LAST_FRAME,
+      g_param_spec_boolean ("keep-last-frame", "Keep last frame",
+          "Keep showing last video frame after playback instead of black screen",
+          DEFAULT_KEEP_LAST_FRAME,
+          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+  gstelement_class->change_state = gst_clapper_sink_change_state;
+
+  gstbasesink_class->get_caps = gst_clapper_sink_get_caps;
+  gstbasesink_class->set_caps = gst_clapper_sink_set_caps;
+  gstbasesink_class->get_times = gst_clapper_sink_get_times;
+  gstbasesink_class->propose_allocation = gst_clapper_sink_propose_allocation;
+  gstbasesink_class->start = gst_clapper_sink_start;
+  gstbasesink_class->stop = gst_clapper_sink_stop;
+
+  gstvideosink_class->show_frame = gst_clapper_sink_show_frame;
+
+  gst_element_class_set_metadata (gstelement_class,
+      "Clapper video sink",
+      "Sink/Video", "A GTK4 video sink used by Clapper media player",
+      "Rafał Dzięgiel <rafostar.github@gmail.com>");
+
+  gst_element_class_add_static_pad_template (gstelement_class,
+      &gst_clapper_sink_template);
+}
+
+/*
+ * GstNavigationInterface
+ */
+static void
+gst_clapper_sink_navigation_interface_init (GstNavigationInterface *iface)
+{
+  /* TODO: Port to "send_event_simple" once we depend on GStreamer 1.22 */
+  iface->send_event = gst_clapper_sink_navigation_send_event;
+}

lib/gst/plugin/gstclappersink.h

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <gtk/gtk.h>
+#include <gst/gst.h>
+#include <gst/video/gstvideosink.h>
+#include <gst/video/video.h>
+
+#include "gstclapperpaintable.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CLAPPER_SINK (gst_clapper_sink_get_type())
+G_DECLARE_FINAL_TYPE (GstClapperSink, gst_clapper_sink, GST, CLAPPER_SINK, GstVideoSink)
+
+#define GST_CLAPPER_SINK_GET_CLASS(obj)     (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_CLAPPER_SINK, GstClapperSinkClass))
+#define GST_CLAPPER_SINK_CAST(obj)          ((GstClapperSink *)(obj))
+
+#define GST_CLAPPER_SINK_GET_LOCK(obj)      (&GST_CLAPPER_SINK_CAST(obj)->lock)
+#define GST_CLAPPER_SINK_LOCK(obj)          g_mutex_lock (GST_CLAPPER_SINK_GET_LOCK(obj))
+#define GST_CLAPPER_SINK_UNLOCK(obj)        g_mutex_unlock (GST_CLAPPER_SINK_GET_LOCK(obj))
+
+struct _GstClapperSink
+{
+  GstVideoSink parent;
+
+  GMutex lock;
+
+  GstClapperPaintable *paintable;
+  GstVideoInfo v_info;
+
+  GtkWidget *widget;
+  GtkWindow *window;
+
+  gboolean presented_window;
+
+  /* Properties */
+  gboolean force_aspect_ratio;
+  gint par_n, par_d;
+  gboolean keep_last_frame;
+
+  /* Position coords */
+  gdouble last_pos_x;
+  gdouble last_pos_y;
+
+  gulong widget_destroy_id;
+  gulong window_destroy_id;
+};
+
+GST_ELEMENT_REGISTER_DECLARE (clappersink);
+
+G_END_DECLS

lib/gst/plugin/gstgtkutils.c

@@ -0,0 +1,131 @@
+/*
+ * GStreamer
+ * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
+ * Copyright (C) 2015 Thibault Saunier <tsaunier@gnome.org>
+ * Copyright (C) 2022 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.
+ */
+
+#include "gstgtkutils.h"
+
+struct invoke_context
+{
+  GThreadFunc func;
+  gpointer data;
+  GMutex lock;
+  GCond cond;
+  gboolean fired;
+
+  gpointer res;
+};
+
+static gboolean
+gst_gtk_invoke_func (struct invoke_context *info)
+{
+  g_mutex_lock (&info->lock);
+  info->res = info->func (info->data);
+  info->fired = TRUE;
+  g_cond_signal (&info->cond);
+  g_mutex_unlock (&info->lock);
+
+  return G_SOURCE_REMOVE;
+}
+
+gpointer
+gst_gtk_invoke_on_main (GThreadFunc func, gpointer data)
+{
+  GMainContext *main_context = g_main_context_default ();
+  struct invoke_context info;
+
+  g_mutex_init (&info.lock);
+  g_cond_init (&info.cond);
+  info.fired = FALSE;
+  info.func = func;
+  info.data = data;
+
+  g_main_context_invoke (main_context, (GSourceFunc) gst_gtk_invoke_func,
+      &info);
+
+  g_mutex_lock (&info.lock);
+  while (!info.fired)
+    g_cond_wait (&info.cond, &info.lock);
+  g_mutex_unlock (&info.lock);
+
+  g_mutex_clear (&info.lock);
+  g_cond_clear (&info.cond);
+
+  return info.res;
+}
+
+/* For use with `GdkMemoryTexture` only! */
+GdkMemoryFormat
+gst_video_format_to_gdk_memory_format (GstVideoFormat format)
+{
+  switch (format) {
+    case GST_VIDEO_FORMAT_RGBA64_LE:
+    case GST_VIDEO_FORMAT_RGBA64_BE:
+      return GDK_MEMORY_R16G16B16A16_PREMULTIPLIED;
+    case GST_VIDEO_FORMAT_RGBA:
+      return GDK_MEMORY_R8G8B8A8;
+    case GST_VIDEO_FORMAT_BGRA:
+      return GDK_MEMORY_B8G8R8A8;
+    case GST_VIDEO_FORMAT_ARGB:
+      return GDK_MEMORY_A8R8G8B8;
+    case GST_VIDEO_FORMAT_ABGR:
+      return GDK_MEMORY_A8B8G8R8;
+    case GST_VIDEO_FORMAT_RGBx:
+      return GDK_MEMORY_R8G8B8A8_PREMULTIPLIED;
+    case GST_VIDEO_FORMAT_BGRx:
+      return GDK_MEMORY_B8G8R8A8_PREMULTIPLIED;
+    case GST_VIDEO_FORMAT_RGB:
+      return GDK_MEMORY_R8G8B8;
+    case GST_VIDEO_FORMAT_BGR:
+      return GDK_MEMORY_B8G8R8;
+    default:
+      break;
+  }
+
+  /* This should never happen as long as above switch statement
+   * is updated when new formats are added to caps */
+  g_assert_not_reached ();
+
+  /* Fallback format */
+  return GDK_MEMORY_R8G8B8A8_PREMULTIPLIED;
+}
+
+GdkTexture *
+gst_video_frame_into_gdk_texture (GstVideoFrame *frame, GDestroyNotify free_func)
+{
+  GdkTexture *texture;
+  GBytes *bytes;
+
+  bytes = g_bytes_new_with_free_func (
+      GST_VIDEO_FRAME_PLANE_DATA (frame, 0),
+      GST_VIDEO_FRAME_HEIGHT (frame) * GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0),
+      free_func, frame);
+
+  texture = gdk_memory_texture_new (
+      GST_VIDEO_FRAME_WIDTH (frame),
+      GST_VIDEO_FRAME_HEIGHT (frame),
+      gst_video_format_to_gdk_memory_format (GST_VIDEO_FRAME_FORMAT (frame)),
+      bytes,
+      GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0));
+
+  g_bytes_unref (bytes);
+
+  return texture;
+}

lib/gst/plugin/gstgtkutils.h

@@ -0,0 +1,33 @@
+/*
+ * GStreamer
+ * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
+ * Copyright (C) 2015 Thibault Saunier <tsaunier@gnome.org>
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <glib.h>
+#include <gtk/gtk.h>
+#include <gst/video/video.h>
+
+gpointer gst_gtk_invoke_on_main (GThreadFunc func, gpointer data);
+
+GdkMemoryFormat gst_video_format_to_gdk_memory_format (GstVideoFormat format);
+
+GdkTexture * gst_video_frame_into_gdk_texture (GstVideoFrame *frame, GDestroyNotify free_func);

lib/gst/plugin/gstplugin.c

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstclapperimport.h"
+#include "gstclapperglimport.h"
+#include "gstclapperdmabufimport.h"
+#include "gstclappersink.h"
+#include "gstclappergdkmemory.h"
+
+static gboolean
+plugin_init (GstPlugin *plugin)
+{
+  gboolean res = FALSE;
+
+  res |= GST_ELEMENT_REGISTER (clapperimport, plugin);
+  res |= GST_ELEMENT_REGISTER (clapperglimport, plugin);
+  res |= GST_ELEMENT_REGISTER (clapperdmabufimport, plugin);
+  res |= GST_ELEMENT_REGISTER (clappersink, plugin);
+
+  if (res)
+    gst_clapper_gdk_memory_init_once ();
+
+  return res;
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR,
+    clapper, "Clapper elements", plugin_init, VERSION, "LGPL",
+    GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

lib/gst/plugin/meson.build

@@ -0,0 +1,71 @@
+gst_plugins_libdir = join_paths(prefix, libdir, 'gstreamer-1.0')
+
+gst_clapper_plugin_args = [
+  '-DHAVE_CONFIG_H',
+  '-DGST_USE_UNSTABLE_API',
+]
+gst_clapper_plugin_deps = [
+  gtk4_dep,
+  gst_dep,
+  gstbase_dep,
+  gstvideo_dep,
+  gstallocators_dep,
+]
+
+if get_option('default_library') == 'static'
+  gst_clapper_plugin_args += ['-DGST_STATIC_COMPILATION']
+endif
+
+gst_clapper_plugin_option = get_option('gst-plugin')
+if gst_clapper_plugin_option.disabled()
+  subdir_done()
+endif
+
+foreach dep : gst_clapper_plugin_deps
+  if not dep.found()
+    if gst_clapper_plugin_option.enabled()
+      error('GStreamer plugin was enabled, but required dependencies were not found')
+    endif
+    subdir_done()
+  endif
+endforeach
+
+if not have_gtk_gl_windowing
+  if gst_clapper_plugin_option.enabled()
+    error('GTK4 widget requires GL windowing')
+  else
+    subdir_done()
+  endif
+endif
+
+if not gtk4_dep.version().version_compare('>=4.6.0')
+  if gst_clapper_plugin_option.enabled()
+    error('GTK4 version on this system is too old, plugin needs 4.6.0+')
+  else
+    subdir_done()
+  endif
+endif
+
+gst_clapper_plugin_sources = [
+  'gstclappergdkmemory.c',
+  'gstclappergdkbufferpool.c',
+  'gstclapperbaseimport.c',
+  'gstclapperglbaseimport.c',
+  'gstclapperdmabufbaseimport.c',
+  'gstclapperimport.c',
+  'gstclapperglimport.c',
+  'gstclapperdmabufimport.c',
+  'gstclappersink.c',
+  'gstclapperpaintable.c',
+  'gstgtkutils.c',
+  'gstplugin.c',
+]
+
+library('gstclapper',
+  gst_clapper_plugin_sources,
+  c_args: gst_clapper_plugin_args,
+  include_directories: configinc,
+  dependencies: gst_clapper_plugin_deps + gtk_deps,
+  install: true,
+  install_dir: gst_plugins_libdir,
+)

lib/meson.build

@@ -1,5 +1,5 @@
 glib_req = '>= 2.56.0'
-gst_req = '>= 1.18.0'
+gst_req = '>= 1.20.0'
 
 api_version = '1.0'
 libversion = meson.project_version()
@@ -132,7 +132,7 @@ cdata.set('SIZEOF_SHORT', cc.sizeof('short'))
 cdata.set('SIZEOF_VOIDP', cc.sizeof('void*'))
 
 cdata.set_quoted('VERSION', libversion)
-cdata.set_quoted('PACKAGE', 'gst-plugins-clapper')
+cdata.set_quoted('PACKAGE', 'clapper')
 cdata.set_quoted('PACKAGE_VERSION', libversion)
 cdata.set_quoted('PACKAGE_BUGREPORT', 'https://github.com/Rafostar/clapper/issues/new')
 cdata.set_quoted('PACKAGE_NAME', 'GStreamer Clapper Libs')
@@ -184,7 +184,7 @@ foreach extra_arg : warning_flags
   endif
 endforeach
 
-cdata.set_quoted('GST_PACKAGE_NAME', 'GStreamer Plugins Clapper')
+cdata.set_quoted('GST_PACKAGE_NAME', 'gst-plugin-clapper')
 cdata.set_quoted('GST_PACKAGE_ORIGIN', 'https://github.com/Rafostar/clapper')
 
 # Mandatory GST deps
@@ -200,6 +200,8 @@ gsttag_dep = dependency('gstreamer-tag-1.0', version: gst_req,
   fallback: ['gst-plugins-base', 'tag_dep'])
 gstvideo_dep = dependency('gstreamer-video-1.0', version: gst_req,
   fallback: ['gst-plugins-base', 'video_dep'])
+gstallocators_dep = dependency('gstreamer-allocators-1.0', version: gst_req,
+  fallback : ['gst-plugins-base', 'allocators_dep'])
 
 # GStreamer OpenGL
 gstgl_dep = dependency('gstreamer-gl-1.0', version: gst_req,
@@ -251,21 +253,49 @@ giounix_dep = dependency('gio-unix-2.0', version: glib_req, fallback: ['glib', '
 
 cdata.set('DISABLE_ORC', 1)
 cdata.set('GST_ENABLE_EXTRA_CHECKS', get_option('devel-checks'))
-cdata.set_quoted('GST_PACKAGE_RELEASE_DATETIME', 'Unknown')
 
 configinc = include_directories('.')
 libsinc = include_directories('gst')
 
-gir = find_program('g-ir-scanner', required: true)
-if not gir.found()
-  error('Clapper requires GI bindings to be compiled')
-endif
-
+gir = find_program('g-ir-scanner')
 gir_init_section = ['--add-init-section=extern void gst_init(gint*,gchar**);' + \
     'g_setenv("GST_REGISTRY_1.0", "@0@", TRUE);'.format(meson.current_build_dir() + '/gir_empty_registry.reg') + \
     'g_setenv("GST_PLUGIN_PATH_1_0", "", TRUE);' + \
     'g_setenv("GST_PLUGIN_SYSTEM_PATH_1_0", "", TRUE);' + \
     'gst_init(NULL,NULL);', '--quiet'
 ]
+
+gtk_deps = [gstgl_dep, gstglproto_dep]
+have_gtk_gl_windowing = false
+
+gtk4_dep = dependency('gtk4', required: true)
+
+if not gtk4_dep.version().version_compare('>=4.0.0')
+  error('GTK4 version on this system is too old')
+endif
+
+if gst_gl_have_window_x11 and (gst_gl_have_platform_egl or gst_gl_have_platform_glx)
+  gtk_x11_dep = dependency('gtk4-x11', required: false)
+  if gtk_x11_dep.found()
+    gtk_deps += gtk_x11_dep
+    if gst_gl_have_platform_glx
+      gtk_deps += gstglx11_dep
+    endif
+    have_gtk_gl_windowing = true
+  endif
+endif
+
+if gst_gl_have_window_wayland and gst_gl_have_platform_egl
+  gtk_wayland_dep = dependency('gtk4-wayland', required: false)
+  if gtk_wayland_dep.found()
+    gtk_deps += [gtk_wayland_dep, gstglwayland_dep]
+    have_gtk_gl_windowing = true
+  endif
+endif
+
+if gst_gl_have_platform_egl
+  gtk_deps += gstglegl_dep
+endif
+
 subdir('gst')
 configure_file(output: 'config.h', configuration: cdata)

meson.build

@@ -19,7 +19,7 @@ datadir = join_paths(get_option('prefix'), get_option('datadir'))
 pkglibdir = join_paths(libdir, meson.project_name())
 pkgdatadir = join_paths(datadir, meson.project_name())
 
-if get_option('lib')
+if get_option('lib') or not get_option('gst-plugin').disabled()
   subdir('lib')
 endif
 

meson_options.txt

@@ -8,6 +8,11 @@ option('lib',
   value: true,
   description: 'Build GstClapper lib'
 )
+option('gst-plugin',
+  type: 'feature',
+  value: 'enabled',
+  description: 'Build GStreamer plugin (includes GTK video sink element)'
+)
 option('devel-checks',
   type: 'boolean',
   value: false,

pkgs/flatpak/com.github.rafostar.Clapper-nightly.json

@@ -3,6 +3,10 @@
     "runtime": "org.gnome.Platform",
     "runtime-version": "master",
     "sdk": "org.gnome.Sdk",
+    "sdk-extensions": [
+        "org.freedesktop.Sdk.Extension.rust-nightly",
+        "org.freedesktop.Sdk.Extension.llvm13"
+    ],
     "command": "com.github.rafostar.Clapper",
     "finish-args": [
         "--share=ipc",
@@ -19,6 +23,10 @@
         "--env=GST_PLUGIN_SYSTEM_PATH=/app/lib/gstreamer-1.0",
         "--env=GST_VAAPI_ALL_DRIVERS=1"
     ],
+    "build-options": {
+        "append-path": "/usr/lib/sdk/rust-nightly/bin:/usr/lib/sdk/llvm13/bin",
+        "prepend-ld-library-path": "/usr/lib/sdk/llvm13/lib"
+    },
     "modules": [
         "flathub/shared-modules/gudev/gudev.json",
         "flathub/lib/libsass.json",
@@ -33,6 +41,7 @@
         "flathub/lib/libass.json",
         "flathub/lib/ffmpeg.json",
         "testing/gstreamer.json",
+        "testing/gst-plugins-rs.json",
         "testing/gtuber.json",
         {
             "name": "clapper",

pkgs/flatpak/com.github.rafostar.Clapper.json

@@ -1,7 +1,7 @@
 {
     "app-id": "com.github.rafostar.Clapper",
     "runtime": "org.gnome.Platform",
-    "runtime-version": "40",
+    "runtime-version": "42",
     "sdk": "org.gnome.Sdk",
     "command": "com.github.rafostar.Clapper",
     "finish-args": [
@@ -34,13 +34,7 @@
         "flathub/lib/ffmpeg.json",
         "flathub/lib/uchardet.json",
         "flathub/gstreamer-1.0/gstreamer.json",
-        "flathub/gstreamer-1.0/gst-plugins-base.json",
-        "flathub/gstreamer-1.0/gst-plugins-good.json",
-        "flathub/gstreamer-1.0/gst-plugins-bad.json",
-        "flathub/gstreamer-1.0/gst-plugins-ugly.json",
-        "flathub/gstreamer-1.0/gst-libav.json",
-        "flathub/gstreamer-1.0/gstreamer-vaapi.json",
-        "flathub/lib/gtk4.json",
+        "testing/gtk4.json",
         "flathub/lib/libadwaita.json",
         "testing/gtuber.json",
         {

pkgs/flatpak/testing/gst-plugins-rs.json

@@ -0,0 +1,23 @@
+{
+    "name": "gst-plugins-rs",
+    "buildsystem": "simple",
+    "build-options": {
+        "build-args": [
+            "--share=network"
+        ],
+        "env": {
+            "CARGO_HOME": "/run/build/gst-plugins-rs/cargo"
+        }
+    },
+    "sources": [
+        {
+            "type": "git",
+            "url": "https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git",
+            "branch": "main"
+        }
+    ],
+    "build-commands": [
+        "cargo install cargo-c",
+        "cargo cinstall --prefix=/app -p gst-plugin-dav1d"
+    ]
+}

pkgs/flatpak/testing/gstreamer.json

@@ -2,7 +2,7 @@
     "name": "gstreamer",
     "buildsystem": "meson",
     "config-opts": [
-        "--wrap-mode=nofallback",
+        "--wrap-mode=nodownload",
 
         "-Dbase=enabled",
         "-Dgood=enabled",
@@ -26,26 +26,12 @@
         "-Dgpl=enabled",
 
         "-Dgstreamer:benchmarks=disabled",
-        "-Dgstreamer:gobject-cast-checks=disabled",
-        "-Dgstreamer:glib-asserts=disabled",
-        "-Dgstreamer:glib-checks=disabled",
-        "-Dgstreamer:extra-checks=disabled",
 
-        "-Dgst-plugins-base:gobject-cast-checks=disabled",
-        "-Dgst-plugins-base:glib-asserts=disabled",
-        "-Dgst-plugins-base:glib-checks=disabled",
         "-Dgst-plugins-base:gl_api=opengl,gles2",
         "-Dgst-plugins-base:gl_platform=egl,glx",
 
-        "-Dgst-plugins-good:gobject-cast-checks=disabled",
-        "-Dgst-plugins-good:glib-asserts=disabled",
-        "-Dgst-plugins-good:glib-checks=disabled",
         "-Dgst-plugins-good:gtk3=disabled",
 
-        "-Dgst-plugins-bad:gobject-cast-checks=disabled",
-        "-Dgst-plugins-bad:glib-asserts=disabled",
-        "-Dgst-plugins-bad:glib-checks=disabled",
-        "-Dgst-plugins-bad:extra-checks=disabled",
         "-Dgst-plugins-bad:vulkan=disabled",
         "-Dgst-plugins-bad:webrtc=disabled",
         "-Dgst-plugins-bad:wasapi=disabled",
@@ -57,16 +43,14 @@
         "-Dgst-plugins-bad:v4l2codecs=enabled",
         "-Dgst-plugins-bad:va=enabled",
 
-        "-Dgst-plugins-ugly:gobject-cast-checks=disabled",
-        "-Dgst-plugins-ugly:glib-asserts=disabled",
-        "-Dgst-plugins-ugly:glib-checks=disabled",
         "-Dgst-plugins-ugly:mpeg2dec=enabled"
     ],
     "sources": [
         {
             "type": "git",
             "url": "https://gitlab.freedesktop.org/gstreamer/gstreamer.git",
-            "branch": "main"
+            "branch": "main",
+            "disable-submodules": true
         }
     ]
 }

pkgs/flatpak/testing/gtk4-popover-unrealize.patch

@@ -0,0 +1,31 @@
+From b413ee2c7d458c7005d3d3d1da8822cd86893ac0 Mon Sep 17 00:00:00 2001
+From: Rafostar <40623528+Rafostar@users.noreply.github.com>
+Date: Fri, 4 Dec 2020 19:25:34 +0100
+Subject: [PATCH] popover: Call unrealize on hide
+
+When popover is shown "realize" method is called which creates a new
+surface for popup. Unfortunately this causes performance drop on Wayland until that
+surface is destroyed what happens inside "unrealize" method during popover destruction.
+
+This commit changes default behavior in a way that surface will be destroyed
+when popover is closed and app will ragain the performance it lost when
+popover was shown.
+---
+ gtk/gtkpopover.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/gtk/gtkpopover.c b/gtk/gtkpopover.c
+index 504dcd6cc1..a7a764d483 100644
+--- a/gtk/gtkpopover.c
++++ b/gtk/gtkpopover.c
+@@ -951,6 +951,7 @@ gtk_popover_hide (GtkWidget *widget)
+ 
+   gtk_popover_set_mnemonics_visible (GTK_POPOVER (widget), FALSE);
+   _gtk_widget_set_visible_flag (widget, FALSE);
++  gtk_widget_unrealize (widget);
+   gtk_widget_unmap (widget);
+   g_signal_emit (widget, signals[CLOSED], 0);
+ }
+-- 
+GitLab
+

pkgs/flatpak/testing/gtk4.json

@@ -0,0 +1,37 @@
+{
+    "name": "gtk",
+    "buildsystem": "meson",
+    "build-options": {
+        "build-args": [
+            "--share=network"
+        ]
+    },
+    "config-opts": [
+        "--buildtype=release",
+
+        "-Dwin32-backend=false",
+        "-Dmacos-backend=false",
+        "-Dmedia-ffmpeg=disabled",
+        "-Dprint-cups=disabled",
+        "-Dintrospection=enabled",
+        "-Ddemos=false",
+        "-Dbuild-examples=false",
+        "-Dbuild-tests=false"
+    ],
+    "cleanup": [
+        "/bin/gtk4-builder-tool",
+        "/bin/gtk4-encode-symbolic-svg"
+    ],
+    "sources": [
+        {
+            "type": "git",
+            "url": "https://gitlab.gnome.org/GNOME/gtk.git",
+            "tag": "4.6.2",
+            "commit": "aec7ca82007dbe07faee6be084d20758ebac2b91"
+        },
+        {
+            "type": "patch",
+            "path": "gtk4-popover-unrealize.patch"
+        }
+    ]
+}

pkgs/rpm/.gitignore

@@ -1,3 +0,0 @@
-.osc/
-clapper/
-.lock

pkgs/rpm/clapper.rpmlintrc

@@ -1 +0,0 @@
-addFilter("explicit-lib-dependency")

pkgs/rpm/clapper.spec

@@ -1,187 +0,0 @@
-#
-# spec file for package clapper
-#
-# Copyright (C) 2020    sp1rit
-# Copyright (C) 2020-21 Rafostar
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program 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 General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-%define debug_package %{nil}
-
-%global appname com.github.rafostar.Clapper
-%global gst_version 1.18.0
-%global gtk4_version 4.0.0
-%global meson_version 0.50
-%global glib2_version 2.56.0
-
-Name:           clapper
-Version:        0.4.1
-Release:        1%{?dist}
-Summary:        Simple and modern GNOME media player
-
-License:        GPL-3.0
-URL:            https://github.com/Rafostar/clapper
-BuildRoot:      %{_builddir}/%{name}-%{version}-build
-Source0:        _service
-
-BuildRequires:  meson >= %{meson_version}
-BuildRequires:  gtk4-devel >= %{gtk4_version}
-BuildRequires:  glib2-devel >= %{glib2_version}
-BuildRequires:  gobject-introspection-devel
-BuildRequires:  gjs
-BuildRequires:  gcc-c++
-BuildRequires:  desktop-file-utils
-BuildRequires:  hicolor-icon-theme
-
-Requires:       gjs
-Requires:       gtk4 >= %{gtk4_version}
-Requires:       libadwaita
-Requires:       hicolor-icon-theme
-
-%if 0%{?suse_version}
-# SUSE recommends group tag, while Fedora discourages their use
-Group:          Productivity/Multimedia/Video/Players
-
-BuildRequires:  update-desktop-files
-BuildRequires:  gstreamer-devel >= %{gst_version}
-BuildRequires:  gstreamer-plugins-base-devel >= %{gst_version}
-BuildRequires:  Mesa-libGLESv2-devel
-BuildRequires:  Mesa-libGLESv3-devel
-
-Requires:       gstreamer >= %{gst_version}
-Requires:       gstreamer-plugins-base >= %{gst_version}
-Requires:       gstreamer-plugins-good >= %{gst_version}
-Requires:       gstreamer-plugins-bad >= %{gst_version}
-
-# Popular video decoders
-Recommends:     gstreamer-plugins-libav >= %{gst_version}
-
-# CD Playback
-Suggests:       gstreamer-plugins-ugly
-# Intel/AMD video acceleration
-Suggests:       gstreamer-plugins-vaapi
-%else
-BuildRequires:  glibc-all-langpacks
-BuildRequires:  gstreamer1-devel >= %{gst_version}
-BuildRequires:  gstreamer1-plugins-base-devel >= %{gst_version}
-BuildRequires:  mesa-libGL-devel
-BuildRequires:  mesa-libGLES-devel
-BuildRequires:  mesa-libGLU-devel
-BuildRequires:  mesa-libEGL-devel
-
-Requires:       gstreamer1 >= %{gst_version}
-Requires:       gstreamer1-plugins-base >= %{gst_version}
-Requires:       gstreamer1-plugins-good >= %{gst_version}
-Requires:       gstreamer1-plugins-bad-free >= %{gst_version}
-
-# ASS subtitles (assrender)
-Recommends:     gstreamer1-plugins-bad-free-extras >= %{gst_version}
-
-# CD Playback
-Suggests:       gstreamer1-plugins-ugly-free
-# Intel/AMD video acceleration
-Suggests:       gstreamer1-vaapi
-%endif
-
-%description
-A GNOME media player built using GJS with GTK4 toolkit and powered by GStreamer with OpenGL rendering.
-
-%prep
-%setup -q -n %{_sourcedir}/%{name}-%{version} -T -D
-
-%build
-%meson
-%meson_build
-
-%install
-%meson_install
-%if 0%{?suse_version}
-%suse_update_desktop_file %{appname}
-%endif
-
-%check
-desktop-file-validate %{buildroot}%{_datadir}/applications/*.desktop
-
-%files
-%license COPYING
-%doc README.md
-%{_bindir}/%{appname}*
-%{_bindir}/clapper
-%{_datadir}/%{appname}/
-%{_datadir}/icons/hicolor/*/apps/*.svg
-%{_datadir}/glib-2.0/schemas/%{appname}.gschema.xml
-%{_datadir}/mime/packages/%{appname}.xml
-%{_datadir}/applications/*.desktop
-%{_datadir}/metainfo/*.metainfo.xml
-%{_datadir}/gir-1.0/GstClapper-1.0.gir
-%{_datadir}/locale/*/LC_MESSAGES/%{appname}.mo
-%{_libdir}/%{appname}/
-
-%changelog
-* Mon Dec 20 2021 Rafostar <rafostar.github@gmail.com> - 0.4.1-1
-- New version
-
-* Sun Sep 12 2021 Rafostar <rafostar.github@gmail.com> - 0.4.0-1
-- New version
-
-* Thu Aug 26 2021 Rafostar <rafostar.github@gmail.com> - 0.3.0-4
-- Install translations
-
-* Thu Aug 26 2021 Rafostar <rafostar.github@gmail.com> - 0.3.0-3
-- Install clapper symlink
-
-* Mon Aug 23 2021 Rafostar <rafostar.github@gmail.com> - 0.3.0-2
-- Require libadwaita
-
-* Fri Jun 18 2021 Rafostar <rafostar.github@gmail.com> - 0.3.0-1
-- New version
-
-* Mon Apr 19 2021 Rafostar <rafostar.github@gmail.com> - 0.2.1-1
-- New version
-
-* Tue Apr 13 2021 Rafostar <rafostar.github@gmail.com> - 0.2.0-1
-- New version
-
-* Fri Feb 26 2021 Rafostar <rafostar.github@gmail.com> - 0.1.0-1
-- New version
-
-* Sun Feb 7 2021 Rafostar <rafostar.github@gmail.com> - 0.0.0-10
-- Install gstclapper libs to app named subdirectory
-
-* Fri Feb 5 2021 Rafostar <rafostar.github@gmail.com> - 0.0.0-9
-- Update build with gstclapper libs support
-
-* Thu Jan 21 2021 Rafostar <rafostar.github@gmail.com> - 0.0.0-8
-- Use metainfo instead of deprecated appdata
-
-* Mon Jan 18 2021 Rafostar <rafostar.github@gmail.com> - 0.0.0-7
-- Remove gjs-1.0 files
-
-* Sun Dec 20 2020 Rafostar <rafostar.github@gmail.com> - 0.0.0-6
-- Include additional app binaries
-
-* Sat Oct 31 2020 Rafostar <rafostar.github@gmail.com> - 0.0.0-5
-- Added metainfo
-
-* Sun Oct 25 2020 Rafostar <rafostar.github@gmail.com> - 0.0.0-4
-- Added gschema
-
-* Wed Oct 14 2020 Rafostar <rafostar.github@gmail.com> - 0.0.0-3
-- Update to GTK4
-
-* Sat Sep 19 22:02:00 CEST 2020 sp1rit - 0.0.0-2
-- Added suse_update_desktop_file macro for SuSE packages
-
-* Fri Sep 18 2020 Rafostar <rafostar.github@gmail.com> - 0.0.0-1
-- Initial package

po/LINGUAS

@@ -1 +1 @@
-ca cs de es hu it nl pl pt pt_BR ru zh_CN
+ca cs de es fr hu it nl pl pt pt_BR ru sv zh_CN

po/af.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/ar.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/ca.po

@@ -18,12 +18,12 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr "Obre fitxers..."
+msgid "Open Files…"
+msgstr "Obre fitxers…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr "Obre l'URI..."
+msgid "Open URI…"
+msgstr "Obre l'URI…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"

po/com.github.rafostar.Clapper.pot

@@ -18,11 +18,11 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/cs.po

@@ -18,12 +18,12 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr "Otevřít soubory..."
+msgid "Open Files…"
+msgstr "Otevřít soubory…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr "Otevřít URI..."
+msgid "Open URI…"
+msgstr "Otevřít URI…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"

po/da.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/de.po

@@ -18,12 +18,12 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr "Dateien öffnen..."
+msgid "Open Files…"
+msgstr "Dateien öffnen…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr "Webquelle öffnen..."
+msgid "Open URI…"
+msgstr "Webquelle öffnen…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"

po/el.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/es.po

@@ -3,7 +3,7 @@ msgstr ""
 "Project-Id-Version: clapper\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-09-14 16:35+0200\n"
-"PO-Revision-Date: 2021-09-14 15:25\n"
+"PO-Revision-Date: 2022-01-16 16:58\n"
 "Last-Translator: \n"
 "Language-Team: Spanish\n"
 "Language: es_ES\n"
@@ -18,12 +18,12 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr "Abrir archivos"
+msgid "Open Files…"
+msgstr "Abrir archivos…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr "Abrir URI"
+msgid "Open URI…"
+msgstr "Abrir URI…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"
@@ -76,7 +76,7 @@ msgstr "Tocar"
 
 #: ui/help-overlay.ui:39
 msgid "Quit"
-msgstr "Abandonar"
+msgstr "Renunciar"
 
 #: ui/help-overlay.ui:47
 msgid "Media"
@@ -96,7 +96,7 @@ msgstr "Lista de reproducción"
 
 #: ui/help-overlay.ui:67
 msgid "Next item"
-msgstr "Artículo siguiente"
+msgstr "Elemento siguiente"
 
 #: ui/help-overlay.ui:68
 msgid "Double tap (right side)"
@@ -104,7 +104,7 @@ msgstr "Tocar doble (lado derecho)"
 
 #: ui/help-overlay.ui:74
 msgid "Previous item"
-msgstr "Artículo anterior"
+msgstr "Elemento anterior"
 
 #: ui/help-overlay.ui:75
 msgid "Double tap (left side)"
@@ -112,7 +112,7 @@ msgstr "Tocar doble (lado izquierdo)"
 
 #: ui/help-overlay.ui:81
 msgid "Change repeat mode"
-msgstr "Cambiar a modo repetición"
+msgstr "Cambiar a modo repetir"
 
 #: ui/help-overlay.ui:87
 msgid "Export to file"
@@ -132,7 +132,7 @@ msgstr "Pulsación larga | Clic derecho"
 
 #: ui/help-overlay.ui:105
 msgid "Seek forward"
-msgstr "Buscar adelante "
+msgstr "Buscar siguiente"
 
 #: ui/help-overlay.ui:106
 msgid "Swipe right | Scroll right"
@@ -140,7 +140,7 @@ msgstr "Deslizar a derecha | Desplazar a derecha"
 
 #: ui/help-overlay.ui:112
 msgid "Seek backward"
-msgstr "Buscar a atrás"
+msgstr "Buscar anterior"
 
 #: ui/help-overlay.ui:113
 msgid "Swipe left | Scroll left"
@@ -168,11 +168,11 @@ msgstr "Fijar a mudo"
 
 #: ui/help-overlay.ui:139
 msgid "Next chapter"
-msgstr "Siguiente capítulo"
+msgstr "Capítulo siguiente"
 
 #: ui/help-overlay.ui:145
 msgid "Previous chapter"
-msgstr "Anterior capítulo"
+msgstr "Capítulo anterior"
 
 #: ui/preferences-plugin-ranking-subpage.ui:11
 msgid "Decoders"
@@ -184,7 +184,7 @@ msgstr "Regresar a preferencias"
 
 #: ui/preferences-window.ui:16
 msgid "Behavior"
-msgstr "Comportamiento"
+msgstr "Configuraciones"
 
 #: ui/preferences-window.ui:19
 msgid "Auto fullscreen"
@@ -192,7 +192,7 @@ msgstr "Pantalla completa automática"
 
 #: ui/preferences-window.ui:20
 msgid "Enter fullscreen when playlist is replaced except floating mode"
-msgstr "Fijar a pantalla completa cuando se reemplaza la lista de reproducción, excepto el modo flotante"
+msgstr "Entra a pantalla completa cuando se reemplaza la lista de reproducción, excepto en modo flotante"
 
 #: ui/preferences-window.ui:26
 msgid "Ask to resume recent media"
@@ -216,7 +216,7 @@ msgstr "Nada por hacer"
 
 #: ui/preferences-window.ui:45
 msgid "Freeze last frame"
-msgstr "Congelar el último fotograma"
+msgstr "Detener último fotograma"
 
 #: ui/preferences-window.ui:46
 msgid "Close the app"
@@ -232,7 +232,7 @@ msgstr "Valor inicial personalizado"
 
 #: ui/preferences-window.ui:60
 msgid "Set custom volume at startup instead of restoring it"
-msgstr "Establecer un volumen personalizado al inicio en lugar de restaurarlo"
+msgstr "Establece un volumen personalizado al inicio en lugar de restaurarlo"
 
 #: ui/preferences-window.ui:64
 msgid "Volume percentage"
@@ -292,7 +292,7 @@ msgstr "Subtítulos"
 
 #: ui/preferences-window.ui:144
 msgid "Default font"
-msgstr "Fuente predeterminada"
+msgstr "Fuente por defecto"
 
 #: ui/preferences-window.ui:154
 msgid "Network"
@@ -356,7 +356,7 @@ msgstr "Renderizar sombras de ventana"
 
 #: ui/preferences-window.ui:242
 msgid "Disable to increase performance when windowed"
-msgstr "Desactivar para aumentar el rendimiento cuando se abre en ventana"
+msgstr "Deshabilitado aumenta el rendimiento cuando se abre en ventana"
 
 #: ui/preferences-window.ui:253
 msgid "Plugin ranking"
@@ -364,7 +364,7 @@ msgstr "Rango de enchufes"
 
 #: ui/preferences-window.ui:254
 msgid "Alter default ranks of GStreamer plugins"
-msgstr "Alterar los rangos predeterminados de los enchufes de GStreamer"
+msgstr "Altera los rangos predeterminados de los enchufes de GStreamer"
 
 #: ui/preferences-window.ui:259
 msgid "Use playbin3"
@@ -380,7 +380,7 @@ msgstr "Experimental"
 
 #: ui/preferences-window.ui:268
 msgid "Use PipeWire for audio output"
-msgstr "Usar PipeWire para la salida de audio"
+msgstr "Usar PipeWire"
 
 #: src/buttons.js:201
 #, javascript-format
@@ -389,7 +389,7 @@ msgstr "Decodificador: %s"
 
 #: src/dialogs.js:152
 msgid "Enter or drop URI here"
-msgstr "Intoducir la URI aquí"
+msgstr "Introducir la URI"
 
 #: src/dialogs.js:157
 msgid "Cancel"
@@ -455,5 +455,5 @@ msgstr "Canales"
 
 #: src/widget.js:261
 msgid "Disabled"
-msgstr "Deshabilitado"
+msgstr "Deshabilitar"
 

po/eu.po

@@ -0,0 +1,459 @@
+msgid ""
+msgstr ""
+"Project-Id-Version: clapper\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2021-09-14 16:35+0200\n"
+"PO-Revision-Date: 2022-01-16 16:58\n"
+"Last-Translator: \n"
+"Language-Team: Basque\n"
+"Language: eu_ES\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"X-Crowdin-Project: clapper\n"
+"X-Crowdin-Project-ID: 473374\n"
+"X-Crowdin-Language: eu\n"
+"X-Crowdin-File: /master/po/com.github.rafostar.Clapper.pot\n"
+"X-Crowdin-File-ID: 31\n"
+
+#: ui/clapper.ui:6
+msgid "Open Files…"
+msgstr ""
+
+#: ui/clapper.ui:10
+msgid "Open URI…"
+msgstr ""
+
+#: ui/clapper.ui:16 ui/preferences-window.ui:4
+msgid "Preferences"
+msgstr ""
+
+#: ui/clapper.ui:20
+msgid "Shortcuts"
+msgstr ""
+
+#: ui/clapper.ui:26
+msgid "About Clapper"
+msgstr ""
+
+#: ui/elapsed-time-button.ui:27
+msgid "Speed"
+msgstr ""
+
+#: ui/elapsed-time-button.ui:41 ui/preferences-window.ui:83
+#: ui/preferences-window.ui:215
+msgid "Normal"
+msgstr ""
+
+#: ui/help-overlay.ui:10 ui/preferences-window.ui:12
+msgid "General"
+msgstr ""
+
+#: ui/help-overlay.ui:13
+msgid "Show shortcuts"
+msgstr ""
+
+#: ui/help-overlay.ui:19
+msgid "Toggle fullscreen"
+msgstr ""
+
+#: ui/help-overlay.ui:20
+msgid "Double tap | Double click"
+msgstr ""
+
+#: ui/help-overlay.ui:26
+msgid "Leave fullscreen"
+msgstr ""
+
+#: ui/help-overlay.ui:32
+msgid "Reveal OSD (fullscreen only)"
+msgstr ""
+
+#: ui/help-overlay.ui:33
+msgid "Tap"
+msgstr ""
+
+#: ui/help-overlay.ui:39
+msgid "Quit"
+msgstr ""
+
+#: ui/help-overlay.ui:47
+msgid "Media"
+msgstr ""
+
+#: ui/help-overlay.ui:50
+msgid "Open files"
+msgstr ""
+
+#: ui/help-overlay.ui:56 src/dialogs.js:137
+msgid "Open URI"
+msgstr ""
+
+#: ui/help-overlay.ui:64
+msgid "Playlist"
+msgstr ""
+
+#: ui/help-overlay.ui:67
+msgid "Next item"
+msgstr ""
+
+#: ui/help-overlay.ui:68
+msgid "Double tap (right side)"
+msgstr ""
+
+#: ui/help-overlay.ui:74
+msgid "Previous item"
+msgstr ""
+
+#: ui/help-overlay.ui:75
+msgid "Double tap (left side)"
+msgstr ""
+
+#: ui/help-overlay.ui:81
+msgid "Change repeat mode"
+msgstr ""
+
+#: ui/help-overlay.ui:87
+msgid "Export to file"
+msgstr ""
+
+#: ui/help-overlay.ui:95 ui/preferences-window.ui:119
+msgid "Playback"
+msgstr ""
+
+#: ui/help-overlay.ui:98
+msgid "Toggle play"
+msgstr ""
+
+#: ui/help-overlay.ui:99
+msgid "Long press | Right click"
+msgstr ""
+
+#: ui/help-overlay.ui:105
+msgid "Seek forward"
+msgstr ""
+
+#: ui/help-overlay.ui:106
+msgid "Swipe right | Scroll right"
+msgstr ""
+
+#: ui/help-overlay.ui:112
+msgid "Seek backward"
+msgstr ""
+
+#: ui/help-overlay.ui:113
+msgid "Swipe left | Scroll left"
+msgstr ""
+
+#: ui/help-overlay.ui:119
+msgid "Volume up"
+msgstr ""
+
+#: ui/help-overlay.ui:120
+msgid "Swipe up | Scroll up"
+msgstr ""
+
+#: ui/help-overlay.ui:126
+msgid "Volume down"
+msgstr ""
+
+#: ui/help-overlay.ui:127
+msgid "Swipe down | Scroll down"
+msgstr ""
+
+#: ui/help-overlay.ui:133
+msgid "Toggle mute"
+msgstr ""
+
+#: ui/help-overlay.ui:139
+msgid "Next chapter"
+msgstr ""
+
+#: ui/help-overlay.ui:145
+msgid "Previous chapter"
+msgstr ""
+
+#: ui/preferences-plugin-ranking-subpage.ui:11
+msgid "Decoders"
+msgstr ""
+
+#: ui/preferences-plugin-ranking-subpage.ui:18
+msgid "Return to the preferences"
+msgstr ""
+
+#: ui/preferences-window.ui:16
+msgid "Behavior"
+msgstr ""
+
+#: ui/preferences-window.ui:19
+msgid "Auto fullscreen"
+msgstr ""
+
+#: ui/preferences-window.ui:20
+msgid "Enter fullscreen when playlist is replaced except floating mode"
+msgstr ""
+
+#: ui/preferences-window.ui:26
+msgid "Ask to resume recent media"
+msgstr ""
+
+#: ui/preferences-window.ui:32
+msgid "Float on all workspaces"
+msgstr ""
+
+#: ui/preferences-window.ui:33
+msgid "This option only works on GNOME"
+msgstr ""
+
+#: ui/preferences-window.ui:39
+msgid "After playback"
+msgstr ""
+
+#: ui/preferences-window.ui:44
+msgid "Do nothing"
+msgstr ""
+
+#: ui/preferences-window.ui:45
+msgid "Freeze last frame"
+msgstr ""
+
+#: ui/preferences-window.ui:46
+msgid "Close the app"
+msgstr ""
+
+#: ui/preferences-window.ui:56
+msgid "Volume"
+msgstr ""
+
+#: ui/preferences-window.ui:59
+msgid "Custom initial value"
+msgstr ""
+
+#: ui/preferences-window.ui:60
+msgid "Set custom volume at startup instead of restoring it"
+msgstr ""
+
+#: ui/preferences-window.ui:64
+msgid "Volume percentage"
+msgstr ""
+
+#: ui/preferences-window.ui:75
+msgid "Seeking"
+msgstr ""
+
+#: ui/preferences-window.ui:78
+msgid "Mode"
+msgstr ""
+
+#: ui/preferences-window.ui:84
+msgid "Accurate"
+msgstr ""
+
+#: ui/preferences-window.ui:85
+msgid "Fast"
+msgstr ""
+
+#: ui/preferences-window.ui:93
+msgid "Unit"
+msgstr ""
+
+#: ui/preferences-window.ui:98
+msgid "Second"
+msgstr ""
+
+#: ui/preferences-window.ui:99
+msgid "Minute"
+msgstr ""
+
+#: ui/preferences-window.ui:100
+msgid "Percentage"
+msgstr ""
+
+#: ui/preferences-window.ui:108
+msgid "Value"
+msgstr ""
+
+#: ui/preferences-window.ui:123
+msgid "Audio"
+msgstr ""
+
+#: ui/preferences-window.ui:126
+msgid "Offset in milliseconds"
+msgstr ""
+
+#: ui/preferences-window.ui:133
+msgid "Only native audio formats"
+msgstr ""
+
+#: ui/preferences-window.ui:141
+msgid "Subtitles"
+msgstr ""
+
+#: ui/preferences-window.ui:144
+msgid "Default font"
+msgstr ""
+
+#: ui/preferences-window.ui:154
+msgid "Network"
+msgstr ""
+
+#: ui/preferences-window.ui:158
+msgid "Client"
+msgstr ""
+
+#: ui/preferences-window.ui:161
+msgid "Progressive download buffering"
+msgstr ""
+
+#: ui/preferences-window.ui:169
+msgid "Server"
+msgstr ""
+
+#: ui/preferences-window.ui:172
+msgid "Control player remotely"
+msgstr ""
+
+#: ui/preferences-window.ui:176
+msgid "Listening port"
+msgstr ""
+
+#: ui/preferences-window.ui:183
+msgid "Run web application in background"
+msgstr ""
+
+#: ui/preferences-window.ui:184
+msgid "Requires GTK compiled with Broadway backend"
+msgstr ""
+
+#: ui/preferences-window.ui:190
+msgid "Web application port"
+msgstr ""
+
+#: ui/preferences-window.ui:204
+msgid "Prefer adaptive streaming"
+msgstr ""
+
+#: ui/preferences-window.ui:210
+msgid "Max quality"
+msgstr ""
+
+#: ui/preferences-window.ui:228
+msgid "Tweaks"
+msgstr ""
+
+#: ui/preferences-window.ui:232
+msgid "Appearance"
+msgstr ""
+
+#: ui/preferences-window.ui:235
+msgid "Dark theme"
+msgstr ""
+
+#: ui/preferences-window.ui:241
+msgid "Render window shadows"
+msgstr ""
+
+#: ui/preferences-window.ui:242
+msgid "Disable to increase performance when windowed"
+msgstr ""
+
+#: ui/preferences-window.ui:253
+msgid "Plugin ranking"
+msgstr ""
+
+#: ui/preferences-window.ui:254
+msgid "Alter default ranks of GStreamer plugins"
+msgstr ""
+
+#: ui/preferences-window.ui:259
+msgid "Use playbin3"
+msgstr ""
+
+#: ui/preferences-window.ui:260 ui/preferences-window.ui:269
+msgid "Requires player restart"
+msgstr ""
+
+#: ui/preferences-window.ui:262 ui/preferences-window.ui:271
+msgid "Experimental"
+msgstr ""
+
+#: ui/preferences-window.ui:268
+msgid "Use PipeWire for audio output"
+msgstr ""
+
+#: src/buttons.js:201
+#, javascript-format
+msgid "Decoder: %s"
+msgstr ""
+
+#: src/dialogs.js:152
+msgid "Enter or drop URI here"
+msgstr ""
+
+#: src/dialogs.js:157
+msgid "Cancel"
+msgstr ""
+
+#: src/dialogs.js:158
+msgid "Open"
+msgstr ""
+
+#: src/dialogs.js:226
+msgid "Title"
+msgstr ""
+
+#: src/dialogs.js:227
+msgid "Completed"
+msgstr ""
+
+#: src/dialogs.js:235
+msgid "Resume playback?"
+msgstr ""
+
+#: src/dialogs.js:289
+#, javascript-format
+msgid "GTK version: %s"
+msgstr ""
+
+#: src/dialogs.js:290
+#, javascript-format
+msgid "Adwaita version: %s"
+msgstr ""
+
+#: src/dialogs.js:291
+#, javascript-format
+msgid "GStreamer version: %s"
+msgstr ""
+
+#: src/dialogs.js:292
+#, javascript-format
+msgid "GJS version: %s"
+msgstr ""
+
+#: src/dialogs.js:300
+msgid "A GNOME media player powered by GStreamer"
+msgstr ""
+
+#. TRANSLATORS: Put your name(s) here for credits or leave untranslated
+#: src/dialogs.js:305
+msgid "translator-credits"
+msgstr ""
+
+#: src/revealers.js:170
+#, javascript-format
+msgid "Ends at: %s"
+msgstr ""
+
+#: src/widget.js:227 src/widget.js:236 src/widget.js:242 src/widget.js:248
+msgid "Undetermined"
+msgstr ""
+
+#: src/widget.js:243
+msgid "Channels"
+msgstr ""
+
+#: src/widget.js:261
+msgid "Disabled"
+msgstr ""
+

po/fi.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/fr.po

@@ -3,7 +3,7 @@ msgstr ""
 "Project-Id-Version: clapper\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-09-14 16:35+0200\n"
-"PO-Revision-Date: 2021-09-14 15:25\n"
+"PO-Revision-Date: 2022-01-18 20:57\n"
 "Last-Translator: \n"
 "Language-Team: French\n"
 "Language: fr_FR\n"
@@ -18,442 +18,442 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr ""
+msgid "Open Files…"
+msgstr "Ouvrir un fichier…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr ""
+msgid "Open URI…"
+msgstr "Ouvrir une URL…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"
-msgstr ""
+msgstr "Préférences"
 
 #: ui/clapper.ui:20
 msgid "Shortcuts"
-msgstr ""
+msgstr "Raccourcis clavier"
 
 #: ui/clapper.ui:26
 msgid "About Clapper"
-msgstr ""
+msgstr "Á propos de Clapper"
 
 #: ui/elapsed-time-button.ui:27
 msgid "Speed"
-msgstr ""
+msgstr "Vitesse"
 
 #: ui/elapsed-time-button.ui:41 ui/preferences-window.ui:83
 #: ui/preferences-window.ui:215
 msgid "Normal"
-msgstr ""
+msgstr "Normal"
 
 #: ui/help-overlay.ui:10 ui/preferences-window.ui:12
 msgid "General"
-msgstr ""
+msgstr "Général"
 
 #: ui/help-overlay.ui:13
 msgid "Show shortcuts"
-msgstr ""
+msgstr "Montrer les raccourcis"
 
 #: ui/help-overlay.ui:19
 msgid "Toggle fullscreen"
-msgstr ""
+msgstr "Basculer en plein écran"
 
 #: ui/help-overlay.ui:20
 msgid "Double tap | Double click"
-msgstr ""
+msgstr "Tapoter/cliquer deux fois"
 
 #: ui/help-overlay.ui:26
 msgid "Leave fullscreen"
-msgstr ""
+msgstr "Sortir du plein écran"
 
 #: ui/help-overlay.ui:32
 msgid "Reveal OSD (fullscreen only)"
-msgstr ""
+msgstr "Afficher les commandes de lecture (seulement en plein écran)"
 
 #: ui/help-overlay.ui:33
 msgid "Tap"
-msgstr ""
+msgstr "Taper"
 
 #: ui/help-overlay.ui:39
 msgid "Quit"
-msgstr ""
+msgstr "Quitter"
 
 #: ui/help-overlay.ui:47
 msgid "Media"
-msgstr ""
+msgstr "Média"
 
 #: ui/help-overlay.ui:50
 msgid "Open files"
-msgstr ""
+msgstr "Ouvrir un fichier"
 
 #: ui/help-overlay.ui:56 src/dialogs.js:137
 msgid "Open URI"
-msgstr ""
+msgstr "Ouvrir une URL"
 
 #: ui/help-overlay.ui:64
 msgid "Playlist"
-msgstr ""
+msgstr "Playlist"
 
 #: ui/help-overlay.ui:67
 msgid "Next item"
-msgstr ""
+msgstr "Prochain média"
 
 #: ui/help-overlay.ui:68
 msgid "Double tap (right side)"
-msgstr ""
+msgstr "Tapoter deux fois (côté droit)"
 
 #: ui/help-overlay.ui:74
 msgid "Previous item"
-msgstr ""
+msgstr "Média précédent"
 
 #: ui/help-overlay.ui:75
 msgid "Double tap (left side)"
-msgstr ""
+msgstr "Tapoter deux fois (côté gauche)"
 
 #: ui/help-overlay.ui:81
 msgid "Change repeat mode"
-msgstr ""
+msgstr "Changer le mode de répétition"
 
 #: ui/help-overlay.ui:87
 msgid "Export to file"
-msgstr ""
+msgstr "Exporter vers un fichier"
 
 #: ui/help-overlay.ui:95 ui/preferences-window.ui:119
 msgid "Playback"
-msgstr ""
+msgstr "Lecture"
 
 #: ui/help-overlay.ui:98
 msgid "Toggle play"
-msgstr ""
+msgstr "Relancer/stopper la lecture"
 
 #: ui/help-overlay.ui:99
 msgid "Long press | Right click"
-msgstr ""
+msgstr "Longue pression | Clic droit"
 
 #: ui/help-overlay.ui:105
 msgid "Seek forward"
-msgstr ""
+msgstr "Avancer dans la lecture"
 
 #: ui/help-overlay.ui:106
 msgid "Swipe right | Scroll right"
-msgstr ""
+msgstr "Glisser/Faire défiler vers la droite"
 
 #: ui/help-overlay.ui:112
 msgid "Seek backward"
-msgstr ""
+msgstr "Reculer dans la lecture"
 
 #: ui/help-overlay.ui:113
 msgid "Swipe left | Scroll left"
-msgstr ""
+msgstr "Glisser/Faire défiler vers la gauche"
 
 #: ui/help-overlay.ui:119
 msgid "Volume up"
-msgstr ""
+msgstr "Augmenter le volume"
 
 #: ui/help-overlay.ui:120
 msgid "Swipe up | Scroll up"
-msgstr ""
+msgstr "Glisser/Défiler vers le haut"
 
 #: ui/help-overlay.ui:126
 msgid "Volume down"
-msgstr ""
+msgstr "Baisser le volume"
 
 #: ui/help-overlay.ui:127
 msgid "Swipe down | Scroll down"
-msgstr ""
+msgstr "Glisser/Défiler vers le bas"
 
 #: ui/help-overlay.ui:133
 msgid "Toggle mute"
-msgstr ""
+msgstr "Basculer le mode silencieux"
 
 #: ui/help-overlay.ui:139
 msgid "Next chapter"
-msgstr ""
+msgstr "Prochain chapitre"
 
 #: ui/help-overlay.ui:145
 msgid "Previous chapter"
-msgstr ""
+msgstr "Chapitre précédent"
 
 #: ui/preferences-plugin-ranking-subpage.ui:11
 msgid "Decoders"
-msgstr ""
+msgstr "Décodeurs"
 
 #: ui/preferences-plugin-ranking-subpage.ui:18
 msgid "Return to the preferences"
-msgstr ""
+msgstr "Retourner aux préférences"
 
 #: ui/preferences-window.ui:16
 msgid "Behavior"
-msgstr ""
+msgstr "Comportement"
 
 #: ui/preferences-window.ui:19
 msgid "Auto fullscreen"
-msgstr ""
+msgstr "Lecture automatique en plein écran"
 
 #: ui/preferences-window.ui:20
 msgid "Enter fullscreen when playlist is replaced except floating mode"
-msgstr ""
+msgstr "Basculer en plein écran quand la playlisyt est remplacée sauf si le mode flottant est activé"
 
 #: ui/preferences-window.ui:26
 msgid "Ask to resume recent media"
-msgstr ""
+msgstr "Demander pour reprendre à la position des médias récents"
 
 #: ui/preferences-window.ui:32
 msgid "Float on all workspaces"
-msgstr ""
+msgstr "Flotter sur tous les bureaux virtuels"
 
 #: ui/preferences-window.ui:33
 msgid "This option only works on GNOME"
-msgstr ""
+msgstr "Cette option ne marche qu'avec GNOME"
 
 #: ui/preferences-window.ui:39
 msgid "After playback"
-msgstr ""
+msgstr "Après la lecture"
 
 #: ui/preferences-window.ui:44
 msgid "Do nothing"
-msgstr ""
+msgstr "Ne rien faire"
 
 #: ui/preferences-window.ui:45
 msgid "Freeze last frame"
-msgstr ""
+msgstr "Geler la dernière image"
 
 #: ui/preferences-window.ui:46
 msgid "Close the app"
-msgstr ""
+msgstr "Fermer l'application"
 
 #: ui/preferences-window.ui:56
 msgid "Volume"
-msgstr ""
+msgstr "Volume"
 
 #: ui/preferences-window.ui:59
 msgid "Custom initial value"
-msgstr ""
+msgstr "Valeur initiale personnalisée"
 
 #: ui/preferences-window.ui:60
 msgid "Set custom volume at startup instead of restoring it"
-msgstr ""
+msgstr "Régler une valeur personnalisée du volume au démarrage au lien de restorer la valeur précédente"
 
 #: ui/preferences-window.ui:64
 msgid "Volume percentage"
-msgstr ""
+msgstr "Pourcentage du volume"
 
 #: ui/preferences-window.ui:75
 msgid "Seeking"
-msgstr ""
+msgstr "Avancement"
 
 #: ui/preferences-window.ui:78
 msgid "Mode"
-msgstr ""
+msgstr "Comportement"
 
 #: ui/preferences-window.ui:84
 msgid "Accurate"
-msgstr ""
+msgstr "Précis"
 
 #: ui/preferences-window.ui:85
 msgid "Fast"
-msgstr ""
+msgstr "Rapide"
 
 #: ui/preferences-window.ui:93
 msgid "Unit"
-msgstr ""
+msgstr "Unité des sauts"
 
 #: ui/preferences-window.ui:98
 msgid "Second"
-msgstr ""
+msgstr "Seconde"
 
 #: ui/preferences-window.ui:99
 msgid "Minute"
-msgstr ""
+msgstr "Minute"
 
 #: ui/preferences-window.ui:100
 msgid "Percentage"
-msgstr ""
+msgstr "Pourcentage"
 
 #: ui/preferences-window.ui:108
 msgid "Value"
-msgstr ""
+msgstr "Longueur du saut"
 
 #: ui/preferences-window.ui:123
 msgid "Audio"
-msgstr ""
+msgstr "Audio"
 
 #: ui/preferences-window.ui:126
 msgid "Offset in milliseconds"
-msgstr ""
+msgstr "Décalage en millisecondes"
 
 #: ui/preferences-window.ui:133
 msgid "Only native audio formats"
-msgstr ""
+msgstr "Seulement des formats audios natifs"
 
 #: ui/preferences-window.ui:141
 msgid "Subtitles"
-msgstr ""
+msgstr "Sous-titres"
 
 #: ui/preferences-window.ui:144
 msgid "Default font"
-msgstr ""
+msgstr "Police par défaut"
 
 #: ui/preferences-window.ui:154
 msgid "Network"
-msgstr ""
+msgstr "Réseau"
 
 #: ui/preferences-window.ui:158
 msgid "Client"
-msgstr ""
+msgstr "Client"
 
 #: ui/preferences-window.ui:161
 msgid "Progressive download buffering"
-msgstr ""
+msgstr "Téléchargement progressif dans le tampon"
 
 #: ui/preferences-window.ui:169
 msgid "Server"
-msgstr ""
+msgstr "Serveur"
 
 #: ui/preferences-window.ui:172
 msgid "Control player remotely"
-msgstr ""
+msgstr "Controler le lecteur à distance"
 
 #: ui/preferences-window.ui:176
 msgid "Listening port"
-msgstr ""
+msgstr "Écouter sur le port"
 
 #: ui/preferences-window.ui:183
 msgid "Run web application in background"
-msgstr ""
+msgstr "Lancer l'application web en arrière plan"
 
 #: ui/preferences-window.ui:184
 msgid "Requires GTK compiled with Broadway backend"
-msgstr ""
+msgstr "Requiert GTK compilé avec l'interface Broadway"
 
 #: ui/preferences-window.ui:190
 msgid "Web application port"
-msgstr ""
+msgstr "Port de l'application web"
 
 #: ui/preferences-window.ui:204
 msgid "Prefer adaptive streaming"
-msgstr ""
+msgstr "Préférer le streaming adaptatif"
 
 #: ui/preferences-window.ui:210
 msgid "Max quality"
-msgstr ""
+msgstr "Qualité maximale"
 
 #: ui/preferences-window.ui:228
 msgid "Tweaks"
-msgstr ""
+msgstr "Réglages"
 
 #: ui/preferences-window.ui:232
 msgid "Appearance"
-msgstr ""
+msgstr "Apparence"
 
 #: ui/preferences-window.ui:235
 msgid "Dark theme"
-msgstr ""
+msgstr "Thème sombre"
 
 #: ui/preferences-window.ui:241
 msgid "Render window shadows"
-msgstr ""
+msgstr "Afficher les ombres de la fenêtre"
 
 #: ui/preferences-window.ui:242
 msgid "Disable to increase performance when windowed"
-msgstr ""
+msgstr "Désactiver pour améliorer les performances quand fenêtré"
 
 #: ui/preferences-window.ui:253
 msgid "Plugin ranking"
-msgstr ""
+msgstr "Liste des plugins"
 
 #: ui/preferences-window.ui:254
 msgid "Alter default ranks of GStreamer plugins"
-msgstr ""
+msgstr "Changer les options par défaut de plugins GStreamer"
 
 #: ui/preferences-window.ui:259
 msgid "Use playbin3"
-msgstr ""
+msgstr "Utiliser playbin3"
 
 #: ui/preferences-window.ui:260 ui/preferences-window.ui:269
 msgid "Requires player restart"
-msgstr ""
+msgstr "Requiert le redémarrage du lecteur"
 
 #: ui/preferences-window.ui:262 ui/preferences-window.ui:271
 msgid "Experimental"
-msgstr ""
+msgstr "Expérimental"
 
 #: ui/preferences-window.ui:268
 msgid "Use PipeWire for audio output"
-msgstr ""
+msgstr "Utiliser PipeWire pour la sortie audio"
 
 #: src/buttons.js:201
 #, javascript-format
 msgid "Decoder: %s"
-msgstr ""
+msgstr "Décodeur: %s"
 
 #: src/dialogs.js:152
 msgid "Enter or drop URI here"
-msgstr ""
+msgstr "Entrer ou déposer une URL ici"
 
 #: src/dialogs.js:157
 msgid "Cancel"
-msgstr ""
+msgstr "Annuler"
 
 #: src/dialogs.js:158
 msgid "Open"
-msgstr ""
+msgstr "Ouvrir"
 
 #: src/dialogs.js:226
 msgid "Title"
-msgstr ""
+msgstr "Titre"
 
 #: src/dialogs.js:227
 msgid "Completed"
-msgstr ""
+msgstr "Terminé"
 
 #: src/dialogs.js:235
 msgid "Resume playback?"
-msgstr ""
+msgstr "Reprendre la lecture?"
 
 #: src/dialogs.js:289
 #, javascript-format
 msgid "GTK version: %s"
-msgstr ""
+msgstr "Version de GTK: %s"
 
 #: src/dialogs.js:290
 #, javascript-format
 msgid "Adwaita version: %s"
-msgstr ""
+msgstr "Version d'Adwaita: %s"
 
 #: src/dialogs.js:291
 #, javascript-format
 msgid "GStreamer version: %s"
-msgstr ""
+msgstr "Version de GStreamer: %s"
 
 #: src/dialogs.js:292
 #, javascript-format
 msgid "GJS version: %s"
-msgstr ""
+msgstr "Version de GJS: %s"
 
 #: src/dialogs.js:300
 msgid "A GNOME media player powered by GStreamer"
-msgstr ""
+msgstr "Un lecteur multimédia pour GNOME propulsé par GStreamer"
 
 #. TRANSLATORS: Put your name(s) here for credits or leave untranslated
 #: src/dialogs.js:305
 msgid "translator-credits"
-msgstr ""
+msgstr "Robin Verdenal-Tallieux"
 
 #: src/revealers.js:170
 #, javascript-format
 msgid "Ends at: %s"
-msgstr ""
+msgstr "Finit à: %s"
 
 #: src/widget.js:227 src/widget.js:236 src/widget.js:242 src/widget.js:248
 msgid "Undetermined"
-msgstr ""
+msgstr "Indéterminé"
 
 #: src/widget.js:243
 msgid "Channels"
-msgstr ""
+msgstr "Chaines"
 
 #: src/widget.js:261
 msgid "Disabled"
-msgstr ""
+msgstr "Désactivé"
 

po/he.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/hu.po

@@ -18,12 +18,12 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr "Fájlok megnyitása..."
+msgid "Open Files…"
+msgstr "Fájlok megnyitása…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr "URI megnyitása..."
+msgid "Open URI…"
+msgstr "URI megnyitása…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"

po/it.po

@@ -18,12 +18,12 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr "Apri i File..."
+msgid "Open Files…"
+msgstr "Apri i File…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr "Apri URI..."
+msgid "Open URI…"
+msgstr "Apri URI…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"

po/ja.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/ko.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/nl.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr "Bestanden openen…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr "URI openen…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/no.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/pl.po

@@ -18,12 +18,12 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr "Otwórz pliki..."
+msgid "Open Files…"
+msgstr "Otwórz pliki…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr "Otwórz URI..."
+msgid "Open URI…"
+msgstr "Otwórz URI…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"

po/pt.po

@@ -18,12 +18,12 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr "Abrir Arquivos..."
+msgid "Open Files…"
+msgstr "Abrir Arquivos…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr "Abrir URI..."
+msgid "Open URI…"
+msgstr "Abrir URI…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"

po/pt_BR.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr "Abrir Arquivos"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr "Abrir URI"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/ro.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/ru.po

@@ -3,7 +3,7 @@ msgstr ""
 "Project-Id-Version: clapper\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-09-14 16:35+0200\n"
-"PO-Revision-Date: 2021-09-17 08:56\n"
+"PO-Revision-Date: 2022-01-16 14:15\n"
 "Last-Translator: \n"
 "Language-Team: Russian\n"
 "Language: ru_RU\n"
@@ -18,12 +18,12 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr "Открыть файлы ..."
+msgid "Open Files…"
+msgstr "Открыть файлы…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr "Открыть URI..."
+msgid "Open URI…"
+msgstr "Открыть URI…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"

po/sr.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/sv.po

@@ -3,7 +3,7 @@ msgstr ""
 "Project-Id-Version: clapper\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-09-14 16:35+0200\n"
-"PO-Revision-Date: 2021-09-14 15:24\n"
+"PO-Revision-Date: 2022-01-16 14:15\n"
 "Last-Translator: \n"
 "Language-Team: Swedish\n"
 "Language: sv_SE\n"
@@ -18,442 +18,442 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
-msgstr ""
+msgid "Open Files…"
+msgstr "Öppna filer…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
-msgstr ""
+msgid "Open URI…"
+msgstr "Öppna URL…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
 msgid "Preferences"
-msgstr ""
+msgstr "Inställningar"
 
 #: ui/clapper.ui:20
 msgid "Shortcuts"
-msgstr ""
+msgstr "Tangentbordsgenvägar"
 
 #: ui/clapper.ui:26
 msgid "About Clapper"
-msgstr ""
+msgstr "Om Clapper"
 
 #: ui/elapsed-time-button.ui:27
 msgid "Speed"
-msgstr ""
+msgstr "Hastighet"
 
 #: ui/elapsed-time-button.ui:41 ui/preferences-window.ui:83
 #: ui/preferences-window.ui:215
 msgid "Normal"
-msgstr ""
+msgstr "Normal"
 
 #: ui/help-overlay.ui:10 ui/preferences-window.ui:12
 msgid "General"
-msgstr ""
+msgstr "Allmänt"
 
 #: ui/help-overlay.ui:13
 msgid "Show shortcuts"
-msgstr ""
+msgstr "Visa tangentbordsgenvägar"
 
 #: ui/help-overlay.ui:19
 msgid "Toggle fullscreen"
-msgstr ""
+msgstr "Växla helskärmsläge"
 
 #: ui/help-overlay.ui:20
 msgid "Double tap | Double click"
-msgstr ""
+msgstr "Dubbeltryck | Dubbelklicka"
 
 #: ui/help-overlay.ui:26
 msgid "Leave fullscreen"
-msgstr ""
+msgstr "Lämna helskärmsläge"
 
 #: ui/help-overlay.ui:32
 msgid "Reveal OSD (fullscreen only)"
-msgstr ""
+msgstr "Visa OSD (endast helskärmsläge)"
 
 #: ui/help-overlay.ui:33
 msgid "Tap"
-msgstr ""
+msgstr "Tryck"
 
 #: ui/help-overlay.ui:39
 msgid "Quit"
-msgstr ""
+msgstr "Avsluta"
 
 #: ui/help-overlay.ui:47
 msgid "Media"
-msgstr ""
+msgstr "Media"
 
 #: ui/help-overlay.ui:50
 msgid "Open files"
-msgstr ""
+msgstr "Öppna filer"
 
 #: ui/help-overlay.ui:56 src/dialogs.js:137
 msgid "Open URI"
-msgstr ""
+msgstr "Öppna URI"
 
 #: ui/help-overlay.ui:64
 msgid "Playlist"
-msgstr ""
+msgstr "Spellista"
 
 #: ui/help-overlay.ui:67
 msgid "Next item"
-msgstr ""
+msgstr "Nästa föremål"
 
 #: ui/help-overlay.ui:68
 msgid "Double tap (right side)"
-msgstr ""
+msgstr "Dubbeltryck (höger sida)"
 
 #: ui/help-overlay.ui:74
 msgid "Previous item"
-msgstr ""
+msgstr "Föregående föremål"
 
 #: ui/help-overlay.ui:75
 msgid "Double tap (left side)"
-msgstr ""
+msgstr "Dubbeltryck (vänster sida)"
 
 #: ui/help-overlay.ui:81
 msgid "Change repeat mode"
-msgstr ""
+msgstr "Ändra upprepningsläge"
 
 #: ui/help-overlay.ui:87
 msgid "Export to file"
-msgstr ""
+msgstr "Exportera till fil"
 
 #: ui/help-overlay.ui:95 ui/preferences-window.ui:119
 msgid "Playback"
-msgstr ""
+msgstr "Uppspelning"
 
 #: ui/help-overlay.ui:98
 msgid "Toggle play"
-msgstr ""
+msgstr "Spela/pausa"
 
 #: ui/help-overlay.ui:99
 msgid "Long press | Right click"
-msgstr ""
+msgstr "Långtryck | Högerklicka"
 
 #: ui/help-overlay.ui:105
 msgid "Seek forward"
-msgstr ""
+msgstr "Spola framåt"
 
 #: ui/help-overlay.ui:106
 msgid "Swipe right | Scroll right"
-msgstr ""
+msgstr "Svep höger | Skrolla höger"
 
 #: ui/help-overlay.ui:112
 msgid "Seek backward"
-msgstr ""
+msgstr "Spola bakåt"
 
 #: ui/help-overlay.ui:113
 msgid "Swipe left | Scroll left"
-msgstr ""
+msgstr "Svep vänster | Skrolla vänster"
 
 #: ui/help-overlay.ui:119
 msgid "Volume up"
-msgstr ""
+msgstr "Höj volymen"
 
 #: ui/help-overlay.ui:120
 msgid "Swipe up | Scroll up"
-msgstr ""
+msgstr "Svep uppåt | Skrolla uppåt"
 
 #: ui/help-overlay.ui:126
 msgid "Volume down"
-msgstr ""
+msgstr "Sänk volymen"
 
 #: ui/help-overlay.ui:127
 msgid "Swipe down | Scroll down"
-msgstr ""
+msgstr "Svep nedåt | Skrolla nedåt"
 
 #: ui/help-overlay.ui:133
 msgid "Toggle mute"
-msgstr ""
+msgstr "Växla ljudet på/av"
 
 #: ui/help-overlay.ui:139
 msgid "Next chapter"
-msgstr ""
+msgstr "Nästa kapitel"
 
 #: ui/help-overlay.ui:145
 msgid "Previous chapter"
-msgstr ""
+msgstr "Föregående kapitel"
 
 #: ui/preferences-plugin-ranking-subpage.ui:11
 msgid "Decoders"
-msgstr ""
+msgstr "Avkodare"
 
 #: ui/preferences-plugin-ranking-subpage.ui:18
 msgid "Return to the preferences"
-msgstr ""
+msgstr "Återgå till inställningarna"
 
 #: ui/preferences-window.ui:16
 msgid "Behavior"
-msgstr ""
+msgstr "Beteende"
 
 #: ui/preferences-window.ui:19
 msgid "Auto fullscreen"
-msgstr ""
+msgstr "Automatiskt helskärmsläge"
 
 #: ui/preferences-window.ui:20
 msgid "Enter fullscreen when playlist is replaced except floating mode"
-msgstr ""
+msgstr "Växla till fullskärmsläge när en spellista ersätts, förutom i flytande läge"
 
 #: ui/preferences-window.ui:26
 msgid "Ask to resume recent media"
-msgstr ""
+msgstr "Be att återuppta senaste media"
 
 #: ui/preferences-window.ui:32
 msgid "Float on all workspaces"
-msgstr ""
+msgstr "Flyt på alla arbetsytor"
 
 #: ui/preferences-window.ui:33
 msgid "This option only works on GNOME"
-msgstr ""
+msgstr "Det här alternativet fungerar endast i GNOME"
 
 #: ui/preferences-window.ui:39
 msgid "After playback"
-msgstr ""
+msgstr "Efter uppspelning"
 
 #: ui/preferences-window.ui:44
 msgid "Do nothing"
-msgstr ""
+msgstr "Gör ingenting"
 
 #: ui/preferences-window.ui:45
 msgid "Freeze last frame"
-msgstr ""
+msgstr "Frys sista bildruta"
 
 #: ui/preferences-window.ui:46
 msgid "Close the app"
-msgstr ""
+msgstr "Stäng appen"
 
 #: ui/preferences-window.ui:56
 msgid "Volume"
-msgstr ""
+msgstr "Volym"
 
 #: ui/preferences-window.ui:59
 msgid "Custom initial value"
-msgstr ""
+msgstr "Anpassat startvärde"
 
 #: ui/preferences-window.ui:60
 msgid "Set custom volume at startup instead of restoring it"
-msgstr ""
+msgstr "Ställ in anpassad volym vid start istället för att återställa den"
 
 #: ui/preferences-window.ui:64
 msgid "Volume percentage"
-msgstr ""
+msgstr "Volymprocent"
 
 #: ui/preferences-window.ui:75
 msgid "Seeking"
-msgstr ""
+msgstr "Spolning"
 
 #: ui/preferences-window.ui:78
 msgid "Mode"
-msgstr ""
+msgstr "Läge"
 
 #: ui/preferences-window.ui:84
 msgid "Accurate"
-msgstr ""
+msgstr "Riktig"
 
 #: ui/preferences-window.ui:85
 msgid "Fast"
-msgstr ""
+msgstr "Snabbt"
 
 #: ui/preferences-window.ui:93
 msgid "Unit"
-msgstr ""
+msgstr "Enhet"
 
 #: ui/preferences-window.ui:98
 msgid "Second"
-msgstr ""
+msgstr "Sekund"
 
 #: ui/preferences-window.ui:99
 msgid "Minute"
-msgstr ""
+msgstr "Minut"
 
 #: ui/preferences-window.ui:100
 msgid "Percentage"
-msgstr ""
+msgstr "Procent"
 
 #: ui/preferences-window.ui:108
 msgid "Value"
-msgstr ""
+msgstr "Värde"
 
 #: ui/preferences-window.ui:123
 msgid "Audio"
-msgstr ""
+msgstr "Ljud"
 
 #: ui/preferences-window.ui:126
 msgid "Offset in milliseconds"
-msgstr ""
+msgstr "Förskjutning i millisekunder"
 
 #: ui/preferences-window.ui:133
 msgid "Only native audio formats"
-msgstr ""
+msgstr "Endast inbyggda ljudformat"
 
 #: ui/preferences-window.ui:141
 msgid "Subtitles"
-msgstr ""
+msgstr "Undertexter"
 
 #: ui/preferences-window.ui:144
 msgid "Default font"
-msgstr ""
+msgstr "Standardteckensnitt"
 
 #: ui/preferences-window.ui:154
 msgid "Network"
-msgstr ""
+msgstr "Nätverk"
 
 #: ui/preferences-window.ui:158
 msgid "Client"
-msgstr ""
+msgstr "Klient"
 
 #: ui/preferences-window.ui:161
 msgid "Progressive download buffering"
-msgstr ""
+msgstr "Progressiv nedladdningsbuffert"
 
 #: ui/preferences-window.ui:169
 msgid "Server"
-msgstr ""
+msgstr "Server"
 
 #: ui/preferences-window.ui:172
 msgid "Control player remotely"
-msgstr ""
+msgstr "Fjärrstyra spelaren"
 
 #: ui/preferences-window.ui:176
 msgid "Listening port"
-msgstr ""
+msgstr "Lyssningsport"
 
 #: ui/preferences-window.ui:183
 msgid "Run web application in background"
-msgstr ""
+msgstr "Kör webbprogram i bakgrunden"
 
 #: ui/preferences-window.ui:184
 msgid "Requires GTK compiled with Broadway backend"
-msgstr ""
+msgstr "Kräver GTK kompilerad med Broadway backend"
 
 #: ui/preferences-window.ui:190
 msgid "Web application port"
-msgstr ""
+msgstr "Port för webbprogram"
 
 #: ui/preferences-window.ui:204
 msgid "Prefer adaptive streaming"
-msgstr ""
+msgstr "Föredra adaptiv streaming"
 
 #: ui/preferences-window.ui:210
 msgid "Max quality"
-msgstr ""
+msgstr "Max kvalitet"
 
 #: ui/preferences-window.ui:228
 msgid "Tweaks"
-msgstr ""
+msgstr "Tweaks"
 
 #: ui/preferences-window.ui:232
 msgid "Appearance"
-msgstr ""
+msgstr "Utseende"
 
 #: ui/preferences-window.ui:235
 msgid "Dark theme"
-msgstr ""
+msgstr "Mörkt Tema"
 
 #: ui/preferences-window.ui:241
 msgid "Render window shadows"
-msgstr ""
+msgstr "Rendera fönsterskuggor"
 
 #: ui/preferences-window.ui:242
 msgid "Disable to increase performance when windowed"
-msgstr ""
+msgstr "Inaktivera för att öka prestanda när fönsterläge är på"
 
 #: ui/preferences-window.ui:253
 msgid "Plugin ranking"
-msgstr ""
+msgstr "Rangordning av plugin"
 
 #: ui/preferences-window.ui:254
 msgid "Alter default ranks of GStreamer plugins"
-msgstr ""
+msgstr "Ändra standardrankningar för GStreamer-plugins"
 
 #: ui/preferences-window.ui:259
 msgid "Use playbin3"
-msgstr ""
+msgstr "Använd playbin3"
 
 #: ui/preferences-window.ui:260 ui/preferences-window.ui:269
 msgid "Requires player restart"
-msgstr ""
+msgstr "Kräver omstart av spelaren"
 
 #: ui/preferences-window.ui:262 ui/preferences-window.ui:271
 msgid "Experimental"
-msgstr ""
+msgstr "Exprimentalt"
 
 #: ui/preferences-window.ui:268
 msgid "Use PipeWire for audio output"
-msgstr ""
+msgstr "Använd PipeWire för Ljudutgång"
 
 #: src/buttons.js:201
 #, javascript-format
 msgid "Decoder: %s"
-msgstr ""
+msgstr "Avkodare: %s"
 
 #: src/dialogs.js:152
 msgid "Enter or drop URI here"
-msgstr ""
+msgstr "Ange eller släpp URI här"
 
 #: src/dialogs.js:157
 msgid "Cancel"
-msgstr ""
+msgstr "Avbryt"
 
 #: src/dialogs.js:158
 msgid "Open"
-msgstr ""
+msgstr "Öppna"
 
 #: src/dialogs.js:226
 msgid "Title"
-msgstr ""
+msgstr "Titel"
 
 #: src/dialogs.js:227
 msgid "Completed"
-msgstr ""
+msgstr "Klar"
 
 #: src/dialogs.js:235
 msgid "Resume playback?"
-msgstr ""
+msgstr "Återuppta uppspelningen?"
 
 #: src/dialogs.js:289
 #, javascript-format
 msgid "GTK version: %s"
-msgstr ""
+msgstr "GTK version: %s"
 
 #: src/dialogs.js:290
 #, javascript-format
 msgid "Adwaita version: %s"
-msgstr ""
+msgstr "Adwaita version: %s"
 
 #: src/dialogs.js:291
 #, javascript-format
 msgid "GStreamer version: %s"
-msgstr ""
+msgstr "GStreamer version: %s"
 
 #: src/dialogs.js:292
 #, javascript-format
 msgid "GJS version: %s"
-msgstr ""
+msgstr "GJS version: %s"
 
 #: src/dialogs.js:300
 msgid "A GNOME media player powered by GStreamer"
-msgstr ""
+msgstr "En media spelare för GNOME som drivs av GStreamer"
 
 #. TRANSLATORS: Put your name(s) here for credits or leave untranslated
 #: src/dialogs.js:305
 msgid "translator-credits"
-msgstr ""
+msgstr "SA ST (sastofficial)"
 
 #: src/revealers.js:170
 #, javascript-format
 msgid "Ends at: %s"
-msgstr ""
+msgstr "Slutar vid: %s"
 
 #: src/widget.js:227 src/widget.js:236 src/widget.js:242 src/widget.js:248
 msgid "Undetermined"
-msgstr ""
+msgstr "Obestämd"
 
 #: src/widget.js:243
 msgid "Channels"
-msgstr ""
+msgstr "Kanaler"
 
 #: src/widget.js:261
 msgid "Disabled"
-msgstr ""
+msgstr "Avstängd"
 

po/tr.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/uk.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/vi.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

po/zh_CN.po

@@ -3,7 +3,7 @@ msgstr ""
 "Project-Id-Version: clapper\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-09-14 16:35+0200\n"
-"PO-Revision-Date: 2021-09-24 14:11\n"
+"PO-Revision-Date: 2022-01-16 14:15\n"
 "Last-Translator: \n"
 "Language-Team: Chinese Simplified\n"
 "Language: zh_CN\n"
@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr "打开文件…"
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr "打开 URI…"
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4
@@ -39,7 +39,7 @@ msgstr "关于 Claper"
 
 #: ui/elapsed-time-button.ui:27
 msgid "Speed"
-msgstr ""
+msgstr "速度"
 
 #: ui/elapsed-time-button.ui:41 ui/preferences-window.ui:83
 #: ui/preferences-window.ui:215
@@ -48,7 +48,7 @@ msgstr "一般"
 
 #: ui/help-overlay.ui:10 ui/preferences-window.ui:12
 msgid "General"
-msgstr ""
+msgstr "常规​​​​​"
 
 #: ui/help-overlay.ui:13
 msgid "Show shortcuts"
@@ -112,7 +112,7 @@ msgstr ""
 
 #: ui/help-overlay.ui:81
 msgid "Change repeat mode"
-msgstr ""
+msgstr "更改循环模式"
 
 #: ui/help-overlay.ui:87
 msgid "Export to file"
@@ -128,7 +128,7 @@ msgstr ""
 
 #: ui/help-overlay.ui:99
 msgid "Long press | Right click"
-msgstr ""
+msgstr "长按 | 右键点击"
 
 #: ui/help-overlay.ui:105
 msgid "Seek forward"
@@ -148,19 +148,19 @@ msgstr ""
 
 #: ui/help-overlay.ui:119
 msgid "Volume up"
-msgstr ""
+msgstr "提高音量"
 
 #: ui/help-overlay.ui:120
 msgid "Swipe up | Scroll up"
-msgstr ""
+msgstr "向上滑动 | 向上滚动"
 
 #: ui/help-overlay.ui:126
 msgid "Volume down"
-msgstr ""
+msgstr "降低音量"
 
 #: ui/help-overlay.ui:127
 msgid "Swipe down | Scroll down"
-msgstr ""
+msgstr "向下滑动 | 向下滚动"
 
 #: ui/help-overlay.ui:133
 msgid "Toggle mute"
@@ -208,19 +208,19 @@ msgstr "此选项仅适用于 GNOME"
 
 #: ui/preferences-window.ui:39
 msgid "After playback"
-msgstr ""
+msgstr "播放结束后"
 
 #: ui/preferences-window.ui:44
 msgid "Do nothing"
-msgstr ""
+msgstr "不执行任何操作"
 
 #: ui/preferences-window.ui:45
 msgid "Freeze last frame"
-msgstr ""
+msgstr "停留在最后一帧"
 
 #: ui/preferences-window.ui:46
 msgid "Close the app"
-msgstr ""
+msgstr "关闭应用程序"
 
 #: ui/preferences-window.ui:56
 msgid "Volume"
@@ -240,7 +240,7 @@ msgstr "音量百分比"
 
 #: ui/preferences-window.ui:75
 msgid "Seeking"
-msgstr ""
+msgstr "定位播放"
 
 #: ui/preferences-window.ui:78
 msgid "Mode"
@@ -308,7 +308,7 @@ msgstr ""
 
 #: ui/preferences-window.ui:169
 msgid "Server"
-msgstr ""
+msgstr "服务器"
 
 #: ui/preferences-window.ui:172
 msgid "Control player remotely"
@@ -328,7 +328,7 @@ msgstr ""
 
 #: ui/preferences-window.ui:190
 msgid "Web application port"
-msgstr ""
+msgstr "Web 应用程序端口"
 
 #: ui/preferences-window.ui:204
 msgid "Prefer adaptive streaming"
@@ -443,7 +443,7 @@ msgstr ""
 #: src/revealers.js:170
 #, javascript-format
 msgid "Ends at: %s"
-msgstr ""
+msgstr "结束于：%s"
 
 #: src/widget.js:227 src/widget.js:236 src/widget.js:242 src/widget.js:248
 msgid "Undetermined"
@@ -455,5 +455,5 @@ msgstr "声道"
 
 #: src/widget.js:261
 msgid "Disabled"
-msgstr ""
+msgstr "禁用"
 

po/zh_TW.po

@@ -18,11 +18,11 @@ msgstr ""
 "X-Crowdin-File-ID: 31\n"
 
 #: ui/clapper.ui:6
-msgid "Open Files..."
+msgid "Open Files…"
 msgstr ""
 
 #: ui/clapper.ui:10
-msgid "Open URI..."
+msgid "Open URI…"
 msgstr ""
 
 #: ui/clapper.ui:16 ui/preferences-window.ui:4

src/appRemote.js

@@ -1,25 +0,0 @@
-const { GObject } = imports.gi;
-const { AppBase } = imports.src.appBase;
-const { HeaderBarRemote } = imports.src.headerbarRemote;
-const { WidgetRemote } = imports.src.widgetRemote;
-
-var AppRemote = GObject.registerClass({
-    GTypeName: 'ClapperAppRemote',
-},
-class ClapperAppRemote extends AppBase
-{
-    vfunc_startup()
-    {
-        super.vfunc_startup();
-
-        const window = this.active_window;
-
-        const clapperWidget = new WidgetRemote();
-        window.set_child(clapperWidget);
-
-        const headerBar = new HeaderBarRemote();
-        window.set_titlebar(headerBar);
-
-        window.maximize();
-    }
-});

src/assets/node-ytdl-core/sig.js

@@ -1,151 +0,0 @@
-/* Copyright (C) 2012-present by fent
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-const jsVarStr = '[a-zA-Z_\\$][a-zA-Z_0-9]*';
-const jsSingleQuoteStr = `'[^'\\\\]*(:?\\\\[\\s\\S][^'\\\\]*)*'`;
-const jsDoubleQuoteStr = `"[^"\\\\]*(:?\\\\[\\s\\S][^"\\\\]*)*"`;
-const jsQuoteStr = `(?:${jsSingleQuoteStr}|${jsDoubleQuoteStr})`;
-const jsKeyStr = `(?:${jsVarStr}|${jsQuoteStr})`;
-const jsPropStr = `(?:\\.${jsVarStr}|\\[${jsQuoteStr}\\])`;
-const jsEmptyStr = `(?:''|"")`;
-const reverseStr = ':function\\(a\\)\\{' +
-  '(?:return )?a\\.reverse\\(\\)' +
-'\\}';
-const sliceStr = ':function\\(a,b\\)\\{' +
-  'return a\\.slice\\(b\\)' +
-'\\}';
-const spliceStr = ':function\\(a,b\\)\\{' +
-  'a\\.splice\\(0,b\\)' +
-'\\}';
-const swapStr = ':function\\(a,b\\)\\{' +
-  'var c=a\\[0\\];a\\[0\\]=a\\[b(?:%a\\.length)?\\];a\\[b(?:%a\\.length)?\\]=c(?:;return a)?' +
-'\\}';
-const actionsObjRegexp = new RegExp(
-  `var (${jsVarStr})=\\{((?:(?:${
-    jsKeyStr}${reverseStr}|${
-    jsKeyStr}${sliceStr}|${
-    jsKeyStr}${spliceStr}|${
-    jsKeyStr}${swapStr
-  }),?\\r?\\n?)+)\\};`);
-const actionsFuncRegexp = new RegExp(`${`function(?: ${jsVarStr})?\\(a\\)\\{` +
-    `a=a\\.split\\(${jsEmptyStr}\\);\\s*` +
-    `((?:(?:a=)?${jsVarStr}`}${
-  jsPropStr
-}\\(a,\\d+\\);)+)` +
-    `return a\\.join\\(${jsEmptyStr}\\)` +
-  `\\}`);
-const reverseRegexp = new RegExp(`(?:^|,)(${jsKeyStr})${reverseStr}`, 'm');
-const sliceRegexp = new RegExp(`(?:^|,)(${jsKeyStr})${sliceStr}`, 'm');
-const spliceRegexp = new RegExp(`(?:^|,)(${jsKeyStr})${spliceStr}`, 'm');
-const swapRegexp = new RegExp(`(?:^|,)(${jsKeyStr})${swapStr}`, 'm');
-
-const swapHeadAndPosition = (arr, position) => {
-  const first = arr[0];
-  arr[0] = arr[position % arr.length];
-  arr[position] = first;
-
-  return arr;
-}
-
-function decipher(sig, tokens) {
-  sig = sig.split('');
-  tokens = tokens.split(',');
-
-  for(let i = 0, len = tokens.length; i < len; i++) {
-    let token = tokens[i], pos;
-    switch (token[0]) {
-      case 'r':
-        sig = sig.reverse();
-        break;
-      case 'w':
-        pos = ~~token.slice(1);
-        sig = swapHeadAndPosition(sig, pos);
-        break;
-      case 's':
-        pos = ~~token.slice(1);
-        sig = sig.slice(pos);
-        break;
-      case 'p':
-        pos = ~~token.slice(1);
-        sig.splice(0, pos);
-        break;
-    }
-  }
-
-  return sig.join('');
-};
-
-function extractActions(body) {
-  const objResult = actionsObjRegexp.exec(body);
-  const funcResult = actionsFuncRegexp.exec(body);
-
-  if(!objResult || !funcResult)
-    return null;
-
-  const obj = objResult[1].replace(/\$/g, '\\$');
-  const objBody = objResult[2].replace(/\$/g, '\\$');
-  const funcBody = funcResult[1].replace(/\$/g, '\\$');
-
-  let result = reverseRegexp.exec(objBody);
-  const reverseKey = result && result[1]
-    .replace(/\$/g, '\\$')
-    .replace(/\$|^'|^"|'$|"$/g, '');
-  result = sliceRegexp.exec(objBody);
-  const sliceKey = result && result[1]
-    .replace(/\$/g, '\\$')
-    .replace(/\$|^'|^"|'$|"$/g, '');
-  result = spliceRegexp.exec(objBody);
-  const spliceKey = result && result[1]
-    .replace(/\$/g, '\\$')
-    .replace(/\$|^'|^"|'$|"$/g, '');
-  result = swapRegexp.exec(objBody);
-  const swapKey = result && result[1]
-    .replace(/\$/g, '\\$')
-    .replace(/\$|^'|^"|'$|"$/g, '');
-
-  const keys = `(${[reverseKey, sliceKey, spliceKey, swapKey].join('|')})`;
-  const myreg = `(?:a=)?${obj
-  }(?:\\.${keys}|\\['${keys}'\\]|\\["${keys}"\\])` +
-    `\\(a,(\\d+)\\)`;
-  const tokenizeRegexp = new RegExp(myreg, 'g');
-  const tokens = [];
-
-  while((result = tokenizeRegexp.exec(funcBody)) !== null) {
-    const key = result[1] || result[2] || result[3];
-    const pos = result[4];
-    switch (key) {
-      case swapKey:
-        tokens.push(`w${result[4]}`);
-        break;
-      case reverseKey:
-        tokens.push('r');
-        break;
-      case sliceKey:
-        tokens.push(`s${result[4]}`);
-        break;
-      case spliceKey:
-        tokens.push(`p${result[4]}`);
-        break;
-    }
-  }
-
-  return tokens.join(',');
-}

src/buttons.js

@@ -165,7 +165,7 @@ class ClapperElapsedTimeButton extends PopoverButtonBase
 
     setInitialState()
     {
-        this.label = '00:00/00:00';
+        this.label = '00∶00∕00∶00';
     }
 
     setFullscreenMode(isFullscreen, isMobileMonitor)

src/controls.js

@@ -7,8 +7,6 @@ const Revealers = imports.src.revealers;
 const { debug } = Debug;
 const { settings } = Misc;
 
-const INITIAL_ELAPSED = '00:00/00:00';
-
 var Controls = GObject.registerClass({
     GTypeName: 'ClapperControls',
 },
@@ -29,7 +27,7 @@ class ClapperControls extends Gtk.Box
         this.isMobile = false;
 
         this.showHours = false;
-        this.durationFormatted = '00:00';
+        this.durationFormatted = '00∶00';
         this.revealersArr = [];
         this.chapters = null;
 
@@ -148,7 +146,7 @@ class ClapperControls extends Gtk.Box
         value = value || 0;
 
         const elapsed = Misc.getFormattedTime(value, this.showHours)
-            + '/' + this.durationFormatted;
+            + '∕' + this.durationFormatted;
 
         this.elapsedButton.label = elapsed;
     }

src/daemon.js

@@ -1,70 +0,0 @@
-const { Gio, GLib, GObject } = imports.gi;
-const Debug = imports.src.debug;
-
-const { debug } = Debug;
-
-var Daemon = GObject.registerClass({
-    GTypeName: 'ClapperDaemon',
-},
-class ClapperDaemon extends Gio.SubprocessLauncher
-{
-    _init()
-    {
-        const port = ARGV[0] || 8080;
-
-        /* FIXME: show output when debugging is on */
-        const flags = Gio.SubprocessFlags.STDOUT_SILENCE
-            | Gio.SubprocessFlags.STDERR_SILENCE;
-
-        super._init({ flags });
-
-        this.errMsg = 'exited with error or was forced to close';
-        this.loop = GLib.MainLoop.new(null, false);
-
-        this.broadwayd = this.spawnv(['gtk4-broadwayd', '--port=' + port]);
-        this.broadwayd.wait_async(null, this._onBroadwaydClosed.bind(this));
-
-        this.setenv('GDK_BACKEND', 'broadway', true);
-
-        const remoteApp = this.spawnv(['com.github.rafostar.Clapper.Remote']);
-        remoteApp.wait_async(null, this._onRemoteClosed.bind(this));
-
-        this.loop.run();
-    }
-
-    _checkProcResult(proc, result)
-    {
-        let hadError = false;
-
-        try {
-            hadError = proc.wait_finish(result);
-        }
-        catch(err) {
-            debug(err);
-        }
-
-        return hadError;
-    }
-
-    _onBroadwaydClosed(proc, result)
-    {
-        const hadError = this._checkProcResult(proc, result);
-
-        if(hadError)
-            debug(`broadwayd ${this.errMsg}`);
-
-        this.broadwayd = null;
-        this.loop.quit();
-    }
-
-    _onRemoteClosed(proc, result)
-    {
-        const hadError = this._checkProcResult(proc, result);
-
-        if(hadError)
-            debug(`remote app ${this.errMsg}`);
-
-        if(this.broadwayd)
-            this.broadwayd.force_exit();
-    }
-});

src/dash.js

@@ -1,165 +0,0 @@
-const Debug = imports.src.debug;
-const FileOps = imports.src.fileOps;
-const Misc = imports.src.misc;
-
-const { debug } = Debug;
-
-function generateDash(dashInfo)
-{
-    debug('generating dash');
-
-    const bufferSec = Math.min(4, dashInfo.duration);
-
-    const dash = [
-        `<?xml version="1.0" encoding="UTF-8"?>`,
-        `<MPD xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"`,
-        `  xmlns="urn:mpeg:dash:schema:mpd:2011"`,
-        `  xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd"`,
-        `  type="static"`,
-        `  mediaPresentationDuration="PT${dashInfo.duration}S"`,
-        `  minBufferTime="PT${bufferSec}S"`,
-        `  profiles="urn:mpeg:dash:profile:isoff-on-demand:2011">`,
-        `  <Period>`
-    ];
-
-    for(let adaptation of dashInfo.adaptations)
-        dash.push(_addAdaptationSet(adaptation));
-
-    dash.push(
-        `  </Period>`,
-        `</MPD>`
-    );
-
-    debug('dash generated');
-
-    return dash.join('\n');
-}
-
-function _addAdaptationSet(streamsArr)
-{
-    /* We just need it for adaptation type,
-     * so any stream will do */
-    const { mimeInfo } = streamsArr[0];
-
-    const adaptArr = [
-        `contentType="${mimeInfo.content}"`,
-        `mimeType="${mimeInfo.type}"`,
-        `subsegmentAlignment="true"`,
-        `subsegmentStartsWithSAP="1"`,
-    ];
-
-    const widthArr = [];
-    const heightArr = [];
-    const fpsArr = [];
-
-    const representations = [];
-
-    for(let stream of streamsArr) {
-        /* No point parsing if no URL */
-        if(!stream.url)
-            continue;
-
-        if(stream.width && stream.height) {
-            widthArr.push(stream.width);
-            heightArr.push(stream.height);
-        }
-        if(stream.fps)
-            fpsArr.push(stream.fps);
-
-        representations.push(_getStreamRepresentation(stream));
-    }
-
-    if(widthArr.length && heightArr.length) {
-        const maxWidth = Math.max.apply(null, widthArr);
-        const maxHeight = Math.max.apply(null, heightArr);
-        const par = _getPar(maxWidth, maxHeight);
-
-        adaptArr.push(`maxWidth="${maxWidth}"`);
-        adaptArr.push(`maxHeight="${maxHeight}"`);
-        adaptArr.push(`par="${par}"`);
-    }
-    if(fpsArr.length) {
-        const maxFps = Math.max.apply(null, fpsArr);
-
-        adaptArr.push(`maxFrameRate="${maxFps}"`);
-    }
-
-    const adaptationSet = [
-        `    <AdaptationSet ${adaptArr.join(' ')}>`,
-               representations.join('\n'),
-        `    </AdaptationSet>`
-    ];
-
-    return adaptationSet.join('\n');
-}
-
-function _getStreamRepresentation(stream)
-{
-    const repOptsArr = [
-        `id="${stream.itag}"`,
-        `codecs="${stream.mimeInfo.codecs}"`,
-        `bandwidth="${stream.bitrate}"`,
-    ];
-
-    if(stream.width && stream.height) {
-        repOptsArr.push(`width="${stream.width}"`);
-        repOptsArr.push(`height="${stream.height}"`);
-        repOptsArr.push(`sar="1:1"`);
-    }
-    if(stream.fps)
-        repOptsArr.push(`frameRate="${stream.fps}"`);
-
-    const repArr = [
-        `      <Representation ${repOptsArr.join(' ')}>`,
-    ];
-    if(stream.audioChannels) {
-        const audioConfArr = [
-            `schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011"`,
-            `value="${stream.audioChannels}"`,
-        ];
-        repArr.push(`      <AudioChannelConfiguration ${audioConfArr.join(' ')}/>`);
-    }
-
-    repArr.push(
-        `        <BaseURL>${stream.url}</BaseURL>`
-    );
-
-    if(stream.indexRange) {
-        const segRange = `${stream.indexRange.start}-${stream.indexRange.end}`;
-        repArr.push(
-            `        <SegmentBase indexRange="${segRange}">`
-        );
-        if(stream.initRange) {
-            const initRange = `${stream.initRange.start}-${stream.initRange.end}`;
-            repArr.push(
-                `          <Initialization range="${initRange}"/>`
-            );
-        }
-        repArr.push(
-            `        </SegmentBase>`
-        );
-    }
-
-    repArr.push(
-        `      </Representation>`
-    );
-
-    return repArr.join('\n');
-}
-
-function _getPar(width, height)
-{
-    const gcd = _getGCD(width, height);
-
-    width /= gcd;
-    height /= gcd;
-
-    return `${width}:${height}`;
-}
-
-function _getGCD(width, height)
-{
-    return (height)
-        ? _getGCD(height, width % height)
-        : width;
-}

src/debug.js

@@ -20,17 +20,6 @@ clapperDebugger.enabled = (
     && G_DEBUG_ENV.includes('Clapper')
 );
 
-const ytDebugger = new Debug.Debugger('YouTube', {
-    name_printer: new Ink.Printer({
-        font: Ink.Font.BOLD,
-        color: Ink.Color.RED
-    }),
-    time_printer: new Ink.Printer({
-        color: Ink.Color.LIGHT_BLUE
-    }),
-    high_precision: true,
-});
-
 function _logStructured(debuggerName, msg, level)
 {
     GLib.log_structured(
@@ -52,14 +41,7 @@ function _debug(debuggerName, msg)
         return;
     }
 
-    switch(debuggerName) {
-        case 'Clapper':
-            clapperDebugger.debug(msg);
-            break;
-        case 'YouTube':
-            ytDebugger.debug(msg);
-            break;
-    }
+    clapperDebugger.debug(msg);
 }
 
 function debug(msg)
@@ -67,11 +49,6 @@ function debug(msg)
     _debug('Clapper', msg);
 }
 
-function ytDebug(msg)
-{
-    _debug('YouTube', msg);
-}
-
 function warn(msg)
 {
     _logStructured('Clapper', msg, GLib.LogLevelFlags.LEVEL_WARNING);

src/headerbarRemote.js

@@ -1,22 +0,0 @@
-const { GObject } = imports.gi;
-const { HeaderBarBase } = imports.src.headerbarBase;
-
-var HeaderBarRemote = GObject.registerClass({
-    GTypeName: 'ClapperHeaderBarRemote',
-},
-class ClapperHeaderBarRemote extends HeaderBarBase
-{
-    _init()
-    {
-        super._init();
-        this.extraButtonsBox.visible = false;
-    }
-
-    _onWindowButtonActivate(action)
-    {
-        if(action === 'toggle-maximized')
-            action = 'toggle_maximized';
-
-        this.root.child.sendWs(action);
-    }
-});

src/main.js

@@ -1,6 +1,6 @@
 imports.gi.versions.Gdk = '4.0';
 imports.gi.versions.Gtk = '4.0';
-imports.gi.versions.Soup = '2.4';
+imports.gi.versions.Soup = '3.0';
 
 pkg.initGettext();
 pkg.initFormat();

src/mainDaemon.js

@@ -1,6 +0,0 @@
-const { Daemon } = imports.src.daemon;
-
-function main()
-{
-    new Daemon();
-}

src/mainRemote.js

@@ -1,19 +0,0 @@
-imports.gi.versions.Gdk = '4.0';
-imports.gi.versions.Gtk = '4.0';
-imports.gi.versions.Soup = '2.4';
-
-pkg.initGettext();
-
-const Misc = imports.src.misc;
-Misc.appId += '.Remote';
-
-const { Gtk, Adw } = imports.gi;
-const { AppRemote } = imports.src.appRemote;
-
-function main(argv)
-{
-    Gtk.init();
-    Adw.init();
-
-    new AppRemote().run(argv);
-}

src/misc.js

@@ -161,8 +161,8 @@ function getFormattedTime(time, showHours)
     time -= minutes * 60;
     const seconds = ('0' + Math.floor(time)).slice(-2);
 
-    const parsed = (hours) ? `${hours}:` : '';
-    return parsed + `${minutes}:${seconds}`;
+    const parsed = (hours) ? `${hours}∶` : '';
+    return parsed + `${minutes}∶${seconds}`;
 }
 
 function parsePlaylistFiles(filesArray)
@@ -224,22 +224,3 @@ function getIsTouch(gesture)
             return false;
     }
 }
-
-function encodeHTML(text)
-{
-    return text.replace(/&/g, '&')
-        .replace(/</g, '&lt;')
-        .replace(/>/g, '&gt;')
-        .replace(/"/g, '&quot;')
-        .replace(/'/g, '&apos;');
-}
-
-function decodeURIPlus(uri)
-{
-    return decodeURI(uri.replace(/\+/g, ' '));
-}
-
-function isHex(num)
-{
-    return Boolean(num.match(/[0-9a-f]+$/i));
-}

src/player.js

@@ -1,10 +1,8 @@
-const { Adw, Gdk, Gio, GObject, Gst, GstClapper, Gtk } = imports.gi;
+const { Adw, Gdk, Gio, GLib, GObject, Gst, GstClapper, Gtk } = imports.gi;
 const ByteArray = imports.byteArray;
 const Debug = imports.src.debug;
 const Misc = imports.src.misc;
-const YouTube = imports.src.youtube;
 const { PlaylistWidget } = imports.src.playlist;
-const { WebApp } = imports.src.webApp;
 
 const { debug, warn } = Debug;
 const { settings } = Misc;
@@ -18,14 +16,31 @@ class ClapperPlayer extends GstClapper.Clapper
 {
     _init()
     {
-        const gtk4plugin = new GstClapper.ClapperGtk4Plugin();
-        const glsinkbin = Gst.ElementFactory.make('glsinkbin', null);
-        glsinkbin.sink = gtk4plugin.video_sink;
+        let vsink = null;
+        const use_legacy_sink = GLib.getenv('CLAPPER_USE_LEGACY_SINK');
+
+        if(!use_legacy_sink || use_legacy_sink != '1') {
+            vsink = Gst.parse_bin_from_description('glupload ! glcolorconvert'
+                + ' ! clapperglimport ! clappersink name=clappersink', true);
+
+            if(vsink)
+                this.clappersink = vsink.get_by_name('clappersink');
+        }
+
+        if(!vsink) {
+            vsink = Gst.ElementFactory.make('glsinkbin', null);
+            const gtk4plugin = new GstClapper.ClapperGtk4Plugin();
+
+            warn('using legacy video sink');
+
+            this.clappersink = gtk4plugin.video_sink;
+            vsink.sink = this.clappersink;
+        }
 
         super._init({
             signal_dispatcher: new GstClapper.ClapperGMainContextSignalDispatcher(),
             video_renderer: new GstClapper.ClapperVideoOverlayVideoRenderer({
-                video_sink: glsinkbin,
+                video_sink: vsink,
             }),
             mpris: new GstClapper.ClapperMpris({
                 own_name: `org.mpris.MediaPlayer2.${Misc.appName}`,
@@ -38,19 +53,16 @@ class ClapperPlayer extends GstClapper.Clapper
             use_pipewire: settings.get_boolean('use-pipewire'),
         });
 
-        this.widget = gtk4plugin.video_sink.widget;
+        this.widget = this.clappersink.widget;
         this.widget.add_css_class('videowidget');
 
         this.visualization_enabled = false;
 
         this.webserver = null;
-        this.webapp = null;
-        this.ytClient = null;
         this.playlistWidget = new PlaylistWidget();
 
         this.seekDone = true;
         this.needsFastSeekRestore = false;
-        this.customVideoTitle = null;
 
         this.windowMapped = false;
         this.quitOnStop = false;
@@ -142,42 +154,19 @@ class ClapperPlayer extends GstClapper.Clapper
 
     set_uri(uri)
     {
-        this.customVideoTitle = null;
+        if(Misc.getUriProtocol(uri) === 'file') {
+            const file = Misc.getFileFromLocalUri(uri);
+            if(!file) {
+                if(!this.playlistWidget.nextTrack())
+                    debug('set media reached end of playlist');
 
-        if(Misc.getUriProtocol(uri) !== 'file') {
-            const [isYouTubeUri, videoId] = YouTube.checkYouTubeUri(uri);
+                return;
+            }
+            if(uri.endsWith('.claps')) {
+                this.load_playlist_file(file);
 
-            if(!isYouTubeUri)
-                return super.set_uri(uri);
-
-            if(!this.ytClient)
-                this.ytClient = new YouTube.YouTubeClient();
-
-            const { root } = this.widget;
-            const surface = root.get_surface();
-            const monitor = root.display.get_monitor_at_surface(surface);
-
-            this.ytClient.getPlaybackDataAsync(videoId, monitor)
-                .then(data => {
-                    this.customVideoTitle = data.title;
-                    super.set_uri(data.uri);
-                })
-                .catch(debug);
-
-            return;
-        }
-
-        const file = Misc.getFileFromLocalUri(uri);
-        if(!file) {
-            if(!this.playlistWidget.nextTrack())
-                debug('set media reached end of playlist');
-
-            return;
-        }
-        if(uri.endsWith('.claps')) {
-            this.load_playlist_file(file);
-
-            return;
+                return;
+            }
         }
 
         super.set_uri(uri);
@@ -643,7 +632,7 @@ class ClapperPlayer extends GstClapper.Clapper
 
         switch(key) {
             case 'after-playback':
-                this.widget.keep_last_frame = (settings.get_int(key) === 1);
+                this.clappersink.keep_last_frame = (settings.get_int(key) === 1);
                 break;
             case 'seeking-mode':
                 switch(settings.get_int(key)) {
@@ -701,7 +690,6 @@ class ClapperPlayer extends GstClapper.Clapper
                 debug(`changed play flags: ${initialFlags} -> ${settingsFlags}`);
                 break;
             case 'webserver-enabled':
-            case 'webapp-enabled':
                 const webserverEnabled = settings.get_boolean('webserver-enabled');
 
                 if(webserverEnabled) {
@@ -716,22 +704,8 @@ class ClapperPlayer extends GstClapper.Clapper
                         this.webserver.passMsgData = this.receiveWs.bind(this);
                     }
                     this.webserver.startListening();
-
-                    const webappEnabled = settings.get_boolean('webapp-enabled');
-
-                    if(!this.webapp && !webappEnabled)
-                        break;
-
-                    if(webappEnabled) {
-                        if(!this.webapp)
-                            this.webapp = new WebApp();
-
-                        this.webapp.startDaemonApp(settings.get_int('webapp-port'));
-                    }
                 }
                 else if(this.webserver) {
-                    /* remote app will close when connection is lost
-                     * which will cause the daemon to close too */
                     this.webserver.stopListening();
                 }
                 break;

src/playerRemote.js

@@ -1,51 +0,0 @@
-const { GObject } = imports.gi;
-const { WebClient } = imports.src.webClient;
-
-var ClapperState = {
-    STOPPED: 0,
-    BUFFERING: 1,
-    PAUSED: 2,
-    PLAYING: 3,
-};
-
-var PlayerRemote = GObject.registerClass({
-    GTypeName: 'ClapperPlayerRemote',
-},
-class ClapperPlayerRemote extends GObject.Object
-{
-    _init()
-    {
-        super._init();
-
-        this.webclient = new WebClient();
-    }
-
-    set_playlist(playlist)
-    {
-        const uris = [];
-
-        /* We can not send GioFiles via WebSocket */
-        for(let source of playlist)
-            uris.push(this._getSourceUri(source));
-
-        this.webclient.sendMessage({
-            action: 'set_playlist',
-            value: uris
-        });
-    }
-
-    set_subtitles(source)
-    {
-        this.webclient.sendMessage({
-            action: 'set_subtitles',
-            value: this._getSourceUri(source)
-        });
-    }
-
-    _getSourceUri(source)
-    {
-        return (source.get_uri != null)
-            ? source.get_uri()
-            : source;
-    }
-});

src/revealers.js

@@ -59,8 +59,8 @@ class ClapperRevealerTop extends CustomRevealer
 
         const initTime = GLib.DateTime.new_now_local().format('%X');
         this.timeFormat = (initTime.length > 8)
-            ? '%I:%M %p'
-            : '%H:%M';
+            ? '%I∶%M %p'
+            : '%H∶%M';
 
         this.mediaTitle = new Gtk.Label({
             ellipsize: Pango.EllipsizeMode.END,

src/webApp.js

@@ -1,51 +0,0 @@
-const { Gio, GObject } = imports.gi;
-const Debug = imports.src.debug;
-const Misc = imports.src.misc;
-
-const { debug } = Debug;
-
-var WebApp = GObject.registerClass({
-    GTypeName: 'ClapperWebApp',
-},
-class ClapperWebApp extends Gio.SubprocessLauncher
-{
-    _init()
-    {
-        const flags = Gio.SubprocessFlags.STDOUT_SILENCE
-            | Gio.SubprocessFlags.STDERR_SILENCE;
-
-        super._init({ flags });
-
-        this.daemonApp = null;
-    }
-
-    startDaemonApp(port)
-    {
-        if(this.daemonApp)
-            return;
-
-        this.daemonApp = this.spawnv([Misc.appId + '.Daemon', String(port)]);
-        this.daemonApp.wait_async(null, this._onDaemonClosed.bind(this));
-
-        debug('daemon app started');
-    }
-
-    _onDaemonClosed(proc, result)
-    {
-        let hadError;
-
-        try {
-            hadError = proc.wait_finish(result);
-        }
-        catch(err) {
-            debug(err);
-        }
-
-        this.daemonApp = null;
-
-        if(hadError)
-            debug('daemon app exited with error or was forced to close');
-
-        debug('daemon app closed');
-    }
-});

src/webClient.js

@@ -1,90 +0,0 @@
-const { Gio, GObject, Soup } = imports.gi;
-const Debug = imports.src.debug;
-const Misc = imports.src.misc;
-const WebHelpers = imports.src.webHelpers;
-
-const { debug } = Debug;
-const { settings } = Misc;
-
-var WebClient = GObject.registerClass({
-    GTypeName: 'ClapperWebClient',
-},
-class ClapperWebClient extends Soup.Session
-{
-    _init(port)
-    {
-        super._init({
-            timeout: 3,
-            use_thread_context: true,
-        });
-
-        this.wsConn = null;
-
-        this.connectWebsocket();
-    }
-
-    connectWebsocket()
-    {
-        if(this.wsConn)
-            return;
-
-        const port = settings.get_int('webserver-port');
-        const message = Soup.Message.new('GET', `ws://127.0.0.1:${port}/websocket`);
-        this.websocket_connect_async(message, null, null, null, this._onWsConnect.bind(this));
-
-        debug('connecting WebSocket to Clapper app');
-    }
-
-    sendMessage(data)
-    {
-        if(
-            !this.wsConn
-            || this.wsConn.state !== Soup.WebsocketState.OPEN
-        )
-            return;
-
-        this.wsConn.send_text(JSON.stringify(data));
-    }
-
-    passMsgData(action, value)
-    {
-    }
-
-    _onWsConnect(session, result)
-    {
-        let connection = null;
-
-        try {
-            connection = this.websocket_connect_finish(result);
-        }
-        catch(err) {
-            debug(err);
-        }
-
-        if(!connection)
-            return this.passMsgData('close');
-
-        connection.connect('message', this._onWsMessage.bind(this));
-        connection.connect('closed', this._onWsClosed.bind(this));
-
-        this.wsConn = connection;
-
-        debug('successfully connected WebSocket');
-    }
-
-    _onWsMessage(connection, dataType, bytes)
-    {
-        const [success, parsedMsg] = WebHelpers.parseData(dataType, bytes);
-
-        if(success)
-            this.passMsgData(parsedMsg.action, parsedMsg.value);
-    }
-
-    _onWsClosed(connection)
-    {
-        debug('closed WebSocket connection');
-        this.wsConn = null;
-
-        this.passMsgData('close');
-    }
-});

src/webServer.js

@@ -107,7 +107,7 @@ class ClapperWebServer extends Soup.Server
         this.remove_handler('/');
     }
 
-    _onWsConnection(server, connection)
+    _onWsConnection(server, msg, path, connection)
     {
         debug('new WebSocket connection');
 

src/widget.js

@@ -4,7 +4,6 @@ const Debug = imports.src.debug;
 const Dialogs = imports.src.dialogs;
 const Misc = imports.src.misc;
 const { Player } = imports.src.player;
-const YouTube = imports.src.youtube;
 const Revealers = imports.src.revealers;
 
 const { debug } = Debug;
@@ -225,7 +224,7 @@ class ClapperWidget extends Gtk.Grid
                 case GstClapper.ClapperVideoInfo:
                     type = 'video';
                     codec = info.get_codec() || _('Undetermined');
-                    text = `${codec}, ${info.get_width()}x${info.get_height()}`;
+                    text = `${codec}, ${info.get_width()}×${info.get_height()}`;
                     let fps = info.get_framerate();
                     fps = Number((fps[0] / fps[1]).toFixed(2));
                     if(fps)
@@ -309,10 +308,7 @@ class ClapperWidget extends Gtk.Grid
 
     updateTitle(mediaInfo)
     {
-        let title = this.player.customVideoTitle;
-
-        if(!title)
-            title = mediaInfo.get_title();
+        let title = mediaInfo.get_title();
 
         if(!title) {
             const item = this.player.playlistWidget.getActiveRow();
@@ -349,7 +345,8 @@ class ClapperWidget extends Gtk.Grid
 
         const currTime = GLib.DateTime.new_now_local();
         const endTime = currTime.add_seconds(
-            this.controls.positionAdjustment.get_upper() - this.controls.currentPosition
+            (this.controls.positionAdjustment.get_upper() - this.controls.currentPosition)
+                / this.controls.elapsedButton.speedScale.get_value()
         );
         const nextUpdate = this.revealerTop.setTimes(currTime, endTime, this.isSeekable);
 
@@ -817,12 +814,10 @@ class ClapperWidget extends Gtk.Grid
     {
         const dropTarget = new Gtk.DropTarget({
             actions: Gdk.DragAction.COPY | Gdk.DragAction.MOVE,
-            preload: true,
         });
         dropTarget.set_gtypes([GObject.TYPE_STRING]);
         dropTarget.connect('motion', this._onDataMotion.bind(this));
         dropTarget.connect('drop', this._onDataDrop.bind(this));
-        dropTarget.connect('notify::value', this._onDropValueNotify.bind(this));
 
         return dropTarget;
     }
@@ -1023,36 +1018,6 @@ class ClapperWidget extends Gtk.Grid
         this.posY = posY;
     }
 
-    _onDropValueNotify(dropTarget)
-    {
-        if(!dropTarget.value)
-            return;
-
-        const uris = dropTarget.value.split(/\r?\n/);
-        const firstUri = uris[0];
-
-        if(uris.length > 1 || !Gst.uri_is_valid(firstUri))
-            return;
-
-        /* Check if user is dragging a YouTube link */
-        const [isYouTubeUri, videoId] = YouTube.checkYouTubeUri(firstUri);
-        if(!isYouTubeUri) return;
-
-        /* Since this is a YouTube video,
-         * create YT client if it was not created yet */
-        if(!this.player.ytClient)
-            this.player.ytClient = new YouTube.YouTubeClient();
-
-        const { ytClient } = this.player;
-
-        /* Speed up things by prefetching new video info before drop */
-        if(
-            !ytClient.compareLastVideoId(videoId)
-            && ytClient.downloadingVideoId !== videoId
-        )
-            ytClient.getVideoInfoPromise(videoId).catch(debug);
-    }
-
     _onDataMotion(dropTarget, x, y)
     {
         return Gdk.DragAction.MOVE;

src/widgetRemote.js

@@ -1,72 +0,0 @@
-const { GObject, Gtk } = imports.gi;
-const Buttons = imports.src.buttons;
-const Misc = imports.src.misc;
-const { PlayerRemote, ClapperState } = imports.src.playerRemote;
-
-var WidgetRemote = GObject.registerClass({
-    GTypeName: 'ClapperWidgetRemote',
-},
-class ClapperWidgetRemote extends Gtk.Grid
-{
-    _init(opts)
-    {
-        super._init({
-            halign: Gtk.Align.CENTER,
-            valign: Gtk.Align.CENTER,
-        });
-
-        Misc.loadCustomCss();
-
-        this.player = new PlayerRemote();
-        this.player.webclient.passMsgData = this.receiveWs.bind(this);
-
-        /* FIXME: create better way to add buttons for
-         * remote app without duplicating too much code */
-        this.togglePlayButton = new Buttons.IconToggleButton(
-            'media-playback-start-symbolic',
-            'media-playback-pause-symbolic'
-        );
-        this.togglePlayButton.remove_css_class('flat');
-        this.togglePlayButton.connect(
-            'clicked', () => this.sendWs('toggle_play')
-        );
-
-        this.attach(this.togglePlayButton, 0, 0, 1, 1);
-    }
-
-    sendWs(action, value)
-    {
-        const data = { action };
-
-        /* do not send "null" or "undefined"
-         * for faster network data transfer */
-        if(value != null)
-            data.value = value;
-
-        this.player.webclient.sendMessage(data);
-    }
-
-    receiveWs(action, value)
-    {
-        switch(action) {
-            case 'state_changed':
-                switch(value) {
-                    case ClapperState.STOPPED:
-                    case ClapperState.PAUSED:
-                        this.togglePlayButton.setPrimaryIcon();
-                        break;
-                    case ClapperState.PLAYING:
-                        this.togglePlayButton.setSecondaryIcon();
-                        break;
-                    default:
-                        break;
-                }
-                break;
-            case 'close':
-                this.root.run_dispose();
-                break;
-            default:
-                break;
-        }
-    }
-});

src/youtubeItags.js

@@ -1,85 +0,0 @@
-var QualityType = {
-    0: 'normal',
-    1: 'hfr',
-};
-
-const Itags = {
-    video: {
-        h264: {
-            normal: {
-                240: 133,
-                360: 134,
-                480: 135,
-                720: 136,
-                1080: 137,
-            },
-            hfr: {
-                720: 298,
-                1080: 299,
-            },
-        },
-    },
-    audio: {
-        aac: [140],
-        opus: [249, 250, 251],
-    },
-    combined: {
-        360: 18,
-        720: 22,
-    },
-    hls: {
-        240: 92,
-        360: 93,
-        480: 94,
-        720: 95,
-        1080: 96,
-    }
-};
-
-function _appendItagArray(arr, opts, formats)
-{
-    const keys = Object.keys(formats);
-
-    for(let fmt of keys) {
-        arr.push(formats[fmt]);
-
-        if(
-            fmt >= opts.height
-            || Math.floor(fmt * 16 / 9) >= opts.width
-        )
-            break;
-    }
-
-    return arr;
-}
-
-function getDashItags(opts)
-{
-    const allowed = {
-        video: [],
-        audio: (opts.codec === 'h264')
-            ? Itags.audio.aac
-            : Itags.audio.opus
-    };
-    const types = Object.keys(Itags.video[opts.codec]);
-
-    for(let type of types) {
-        const formats = Itags.video[opts.codec][type];
-        _appendItagArray(allowed.video, opts, formats);
-
-        if(type === opts.type)
-            break;
-    }
-
-    return allowed;
-}
-
-function getCombinedItags(opts)
-{
-    return _appendItagArray([], opts, Itags.combined);
-}
-
-function getHLSItags(opts)
-{
-    return _appendItagArray([], opts, Itags.hls);
-}