API: Add playlist support

lib/gst/clapper/clapper.h

@@ -28,6 +28,8 @@
 #include <gst/clapper/gstclapper-g-main-context-signal-dispatcher.h>
 #include <gst/clapper/gstclapper-video-overlay-video-renderer.h>
 #include <gst/clapper/gstclapper-visualization.h>
+#include <gst/clapper/gstclapper-playlist.h>
+#include <gst/clapper/gstclapper-playlist-item.h>
 #include <gst/clapper/gstclapper-mpris.h>
 #include <gst/clapper/gstclapper-gtk4-plugin.h>
 

lib/gst/clapper/gstclapper-mpris.c

@@ -392,11 +392,17 @@ handle_open_uri_cb (GstClapperMprisMediaPlayer2Player * player_skeleton,
     gpointer user_data)
 {
   GstClapper *clapper = GST_CLAPPER (user_data);
+  GstClapperPlaylist *playlist;
+  GstClapperPlaylistItem *item;
 
   GST_DEBUG ("Handle OpenUri");
 
-  /* FIXME: set one item playlist instead */
-  gst_clapper_set_uri (clapper, uri);
+  playlist = gst_clapper_playlist_new ();
+  item = gst_clapper_playlist_item_new (uri);
+
+  gst_clapper_playlist_append (playlist, item);
+
+  gst_clapper_set_playlist (clapper, playlist);
   gst_clapper_mpris_media_player2_player_complete_open_uri (player_skeleton, invocation);
 
   return TRUE;

lib/gst/clapper/gstclapper-playlist-item-private.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#ifndef __GST_CLAPPER_PLAYLIST_ITEM_PRIVATE_H__
+#define __GST_CLAPPER_PLAYLIST_ITEM_PRIVATE_H__
+
+#include "gstclapper-playlist.h"
+
+struct _GstClapperPlaylistItem
+{
+  GstObject parent;
+
+  /* ID of the playlist this item belongs to */
+  gchar *owner_uuid;
+  gint id;
+
+  gchar *uri;
+  gchar *suburi;
+  gchar *custom_title;
+
+  /* Signals */
+  gulong activated_signal_id;
+};
+
+struct _GstClapperPlaylistItemClass
+{
+  GstObjectClass parent_class;
+};
+
+G_GNUC_INTERNAL
+void gst_clapper_playlist_item_mark_added (GstClapperPlaylistItem *item, GstClapperPlaylist *playlist);
+
+#endif /* __GST_CLAPPER_PLAYLIST_ITEM_PRIVATE_H__ */

lib/gst/clapper/gstclapper-playlist-item.c

@@ -0,0 +1,281 @@
+/*
+ * Copyright (C) 2021 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 "gstclapper-playlist-item.h"
+#include "gstclapper-playlist-item-private.h"
+#include "gstclapper-playlist-private.h"
+
+enum
+{
+  PROP_0,
+  PROP_URI,
+  PROP_SUBURI,
+  PROP_CUSTOM_TITLE,
+  PROP_LAST
+};
+
+enum
+{
+  SIGNAL_ACTIVATED,
+  SIGNAL_LAST
+};
+
+#define parent_class gst_clapper_playlist_item_parent_class
+G_DEFINE_TYPE (GstClapperPlaylistItem, gst_clapper_playlist_item, GST_TYPE_OBJECT);
+
+static guint signals[SIGNAL_LAST] = { 0, };
+static GParamSpec *param_specs[PROP_LAST] = { NULL, };
+
+static void gst_clapper_playlist_item_set_property (GObject * object,
+    guint prop_id, const GValue * value, GParamSpec * pspec);
+static void gst_clapper_playlist_item_get_property (GObject * object,
+    guint prop_id, GValue * value, GParamSpec * pspec);
+static void gst_clapper_playlist_item_dispose (GObject * object);
+static void gst_clapper_playlist_item_finalize (GObject * object);
+
+static void
+gst_clapper_playlist_item_init (GstClapperPlaylistItem * self)
+{
+  self->owner_uuid = NULL;
+  self->id = -1;
+
+  self->uri = NULL;
+  self->suburi = NULL;
+  self->custom_title = NULL;
+}
+
+static void
+gst_clapper_playlist_item_class_init (GstClapperPlaylistItemClass * klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *) klass;
+
+  gobject_class->set_property = gst_clapper_playlist_item_set_property;
+  gobject_class->get_property = gst_clapper_playlist_item_get_property;
+  gobject_class->dispose = gst_clapper_playlist_item_dispose;
+  gobject_class->finalize = gst_clapper_playlist_item_finalize;
+
+  param_specs[PROP_URI] = g_param_spec_string ("uri",
+      "URI", "Playlist Item URI", NULL,
+      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
+      G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  param_specs[PROP_SUBURI] = g_param_spec_string ("suburi",
+      "Subtitle URI", "Playlist Item Subtitle URI", NULL,
+       G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+
+  param_specs[PROP_CUSTOM_TITLE] = g_param_spec_string ("custom-title",
+      "Custom Title", "Playlist Item Custom Title", NULL,
+      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
+      G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  g_object_class_install_properties (gobject_class, PROP_LAST, param_specs);
+
+  signals[SIGNAL_ACTIVATED] =
+      g_signal_new ("activated", G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
+      NULL, NULL, G_TYPE_NONE, 0, G_TYPE_INVALID);
+}
+
+static void
+gst_clapper_playlist_item_set_property (GObject * object,
+    guint prop_id, const GValue * value, GParamSpec * pspec)
+{
+  GstClapperPlaylistItem *self = GST_CLAPPER_PLAYLIST_ITEM (object);
+
+  switch (prop_id) {
+    case PROP_URI:
+      self->uri = g_value_dup_string (value);
+      break;
+    case PROP_SUBURI:
+      g_free (self->suburi);
+      self->suburi = g_value_dup_string (value);
+      break;
+    case PROP_CUSTOM_TITLE:
+      self->custom_title = g_value_dup_string (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_clapper_playlist_item_get_property (GObject * object,
+    guint prop_id, GValue * value, GParamSpec * pspec)
+{
+  GstClapperPlaylistItem *self = GST_CLAPPER_PLAYLIST_ITEM (object);
+
+  switch (prop_id) {
+    case PROP_URI:
+      g_value_set_string (value, self->uri);
+      break;
+    case PROP_SUBURI:
+      g_value_set_string (value, self->suburi);
+      break;
+    case PROP_CUSTOM_TITLE:
+      g_value_set_string (value, self->custom_title);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_clapper_playlist_item_dispose (GObject * object)
+{
+  GstClapperPlaylistItem *self = GST_CLAPPER_PLAYLIST_ITEM (object);
+
+  if (self->activated_signal_id) {
+    g_signal_handler_disconnect (self, self->activated_signal_id);
+    self->activated_signal_id = 0;
+  }
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gst_clapper_playlist_item_finalize (GObject * object)
+{
+  GstClapperPlaylistItem *self = GST_CLAPPER_PLAYLIST_ITEM (object);
+
+  g_free (self->owner_uuid);
+
+  g_free (self->uri);
+  g_free (self->suburi);
+  g_free (self->custom_title);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+item_activate_cb (GstClapperPlaylistItem * self, GParamSpec * pspec,
+    GstClapperPlaylist * playlist)
+{
+  gst_clapper_playlist_emit_item_activated (playlist, self);
+}
+
+void
+gst_clapper_playlist_item_mark_added (GstClapperPlaylistItem * self,
+    GstClapperPlaylist * playlist)
+{
+  GST_OBJECT_LOCK (self);
+
+  self->owner_uuid = g_strdup (playlist->uuid);
+  self->id = playlist->id_count;
+
+  self->activated_signal_id = g_signal_connect (self, "activated",
+      G_CALLBACK (item_activate_cb), playlist);
+
+  GST_OBJECT_UNLOCK (self);
+}
+
+/**
+ * gst_clapper_playlist_item_new:
+ *
+ * Creates a new #GstClapperPlaylistItem.
+ *
+ * Returns: (transfer full): a new #GstClapperPlaylistItem object.
+ */
+GstClapperPlaylistItem *
+gst_clapper_playlist_item_new (const gchar * uri)
+{
+  return g_object_new (GST_TYPE_CLAPPER_PLAYLIST_ITEM, "uri", uri, NULL);
+}
+
+/**
+ * gst_clapper_playlist_item_new_titled:
+ * @uri: An URI pointing to media
+ * @custom_title: A custom title for this item
+ *
+ * Creates a new #GstClapperPlaylistItem with a custom title.
+ *
+ * Normally item title is obtained from media info or local filename,
+ * use this function for online sources where media title cannot be
+ * determined or if you want to override original title for some reason.
+ *
+ * Returns: (transfer full): a new #GstClapperPlaylistItem object.
+ */
+GstClapperPlaylistItem *
+gst_clapper_playlist_item_new_titled (const gchar * uri,
+    const gchar * custom_title)
+{
+  return g_object_new (GST_TYPE_CLAPPER_PLAYLIST_ITEM, "uri", uri,
+      "custom_title", custom_title, NULL);
+}
+
+/**
+ * gst_clapper_playlist_item_copy:
+ * @item: #GstClapperPlaylistItem
+ *
+ * Duplicates a #GstClapperPlaylistItem.
+ *
+ * Duplicated items do not belong to any playlist.
+ * Use this function if you want to append the same
+ * media into another #GstClapperPlaylist instance.
+ *
+ * Returns: (transfer full): a new #GstClapperPlaylistItem object.
+ */
+GstClapperPlaylistItem *
+gst_clapper_playlist_item_copy (GstClapperPlaylistItem * source)
+{
+  g_return_val_if_fail (GST_IS_CLAPPER_PLAYLIST_ITEM (source), NULL);
+
+  return g_object_new (GST_TYPE_CLAPPER_PLAYLIST_ITEM, "uri", source->uri,
+      "suburi", source->suburi, "custom-title", source->custom_title, NULL);
+}
+
+/**
+ * gst_clapper_playlist_item_set_suburi:
+ * @item: #GstClapperPlaylistItem
+ * @suburi: subtitle URI
+ *
+ * Sets the external subtitle URI.
+ */
+void
+gst_clapper_playlist_item_set_suburi (GstClapperPlaylistItem * self,
+    const gchar * suburi)
+{
+/* TODO: When setting this property for an item that is currently active,
+ * it should be combined with a call to
+ * gst_clapper_set_subtitle_track_enabled(Clapper, TRUE),
+ * so the subtitles are actually rendered.
+ */
+  g_return_if_fail (GST_IS_CLAPPER_PLAYLIST_ITEM (self));
+
+  g_object_set (self, "suburi", suburi, NULL);
+}
+
+/**
+ * gst_clapper_playlist_item_activate:
+ * @item: #GstClapperPlaylistItem
+ *
+ * Activates the #GstClapperPlaylistItem.
+ */
+void
+gst_clapper_playlist_item_activate (GstClapperPlaylistItem * self)
+{
+  g_return_if_fail (GST_IS_CLAPPER_PLAYLIST_ITEM (self));
+
+  g_signal_emit (self, signals[SIGNAL_ACTIVATED], 0);
+}

lib/gst/clapper/gstclapper-playlist-item.h

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#ifndef __GST_CLAPPER_PLAYLIST_ITEM_H__
+#define __GST_CLAPPER_PLAYLIST_ITEM_H__
+
+#include <gst/clapper/clapper-prelude.h>
+
+G_BEGIN_DECLS
+
+typedef struct _GstClapperPlaylistItem GstClapperPlaylistItem;
+typedef struct _GstClapperPlaylistItemClass GstClapperPlaylistItemClass;
+
+#define GST_TYPE_CLAPPER_PLAYLIST_ITEM             (gst_clapper_playlist_item_get_type ())
+#define GST_IS_CLAPPER_PLAYLIST_ITEM(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_CLAPPER_PLAYLIST_ITEM))
+#define GST_IS_CLAPPER_PLAYLIST_ITEM_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_CLAPPER_PLAYLIST_ITEM))
+#define GST_CLAPPER_PLAYLIST_ITEM_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_CLAPPER_PLAYLIST_ITEM, GstClapperPlaylistItemClass))
+#define GST_CLAPPER_PLAYLIST_ITEM(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_CLAPPER_PLAYLIST_ITEM, GstClapperPlaylistItem))
+#define GST_CLAPPER_PLAYLIST_ITEM_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_CLAPPER_PLAYLIST_ITEM, GstClapperPlaylistItemClass))
+#define GST_CLAPPER_PLAYLIST_ITEM_CAST(obj)        ((GstClapperPlaylistItem*)(obj))
+
+#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstClapperPlaylistItem, gst_object_unref)
+#endif
+
+GST_CLAPPER_API
+GType gst_clapper_playlist_item_get_type                          (void);
+
+GST_CLAPPER_API
+GstClapperPlaylistItem * gst_clapper_playlist_item_new            (const gchar *uri);
+
+GST_CLAPPER_API
+GstClapperPlaylistItem * gst_clapper_playlist_item_new_titled     (const gchar *uri, const gchar *custom_title);
+
+GST_CLAPPER_API
+GstClapperPlaylistItem * gst_clapper_playlist_item_copy           (GstClapperPlaylistItem *item);
+
+GST_CLAPPER_API
+void gst_clapper_playlist_item_set_suburi                         (GstClapperPlaylistItem *item, const gchar *suburi);
+
+GST_CLAPPER_API
+void gst_clapper_playlist_item_activate                           (GstClapperPlaylistItem *item);
+
+G_END_DECLS
+
+#endif /* __GST_CLAPPER_PLAYLIST_ITEM_H__ */

lib/gst/clapper/gstclapper-playlist-private.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#ifndef __GST_CLAPPER_PLAYLIST_PRIVATE_H__
+#define __GST_CLAPPER_PLAYLIST_PRIVATE_H__
+
+#include "gstclapper-playlist.h"
+
+struct _GstClapperPlaylist
+{
+  GstObject parent;
+
+  gchar *uuid;
+  gint id_count;
+  GArray *items;
+  gint active_index;
+};
+
+struct _GstClapperPlaylistClass
+{
+  GstObjectClass parent_class;
+};
+
+G_GNUC_INTERNAL
+void gst_clapper_playlist_emit_item_activated (GstClapperPlaylist *playlist, GstClapperPlaylistItem *item);
+
+#endif /* __GST_CLAPPER_PLAYLIST_PRIVATE_H__ */

lib/gst/clapper/gstclapper-playlist.c

@@ -0,0 +1,275 @@
+/*
+ * Copyright (C) 2021 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 "gstclapper-playlist.h"
+#include "gstclapper-playlist-private.h"
+#include "gstclapper-playlist-item.h"
+#include "gstclapper-playlist-item-private.h"
+
+enum
+{
+  SIGNAL_ITEM_ACTIVATED,
+  SIGNAL_LAST
+};
+
+#define parent_class gst_clapper_playlist_parent_class
+G_DEFINE_TYPE (GstClapperPlaylist, gst_clapper_playlist, GST_TYPE_OBJECT);
+
+static guint signals[SIGNAL_LAST] = { 0, };
+
+static void gst_clapper_playlist_dispose (GObject * object);
+static void gst_clapper_playlist_finalize (GObject * object);
+
+static void
+gst_clapper_playlist_init (GstClapperPlaylist * self)
+{
+  self->uuid = g_uuid_string_random ();
+  self->id_count = 0;
+  self->items = g_array_new (FALSE, FALSE, sizeof (GstClapperPlaylistItem));
+  self->active_index = -1;
+
+  g_array_set_clear_func (self->items, (GDestroyNotify) gst_object_unref);
+}
+
+static void
+gst_clapper_playlist_class_init (GstClapperPlaylistClass * klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *) klass;
+
+  gobject_class->dispose = gst_clapper_playlist_dispose;
+  gobject_class->finalize = gst_clapper_playlist_finalize;
+
+  signals[SIGNAL_ITEM_ACTIVATED] =
+      g_signal_new ("item-activated", G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
+      NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_CLAPPER_PLAYLIST_ITEM);
+}
+
+static void
+gst_clapper_playlist_dispose (GObject * object)
+{
+  GstClapperPlaylist *self = GST_CLAPPER_PLAYLIST (object);
+
+  /* FIXME: Need this for something? */
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gst_clapper_playlist_finalize (GObject * object)
+{
+  GstClapperPlaylist *self = GST_CLAPPER_PLAYLIST (object);
+
+  g_free (self->uuid);
+  g_array_unref (self->items);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+void
+gst_clapper_playlist_emit_item_activated (GstClapperPlaylist * self,
+    GstClapperPlaylistItem * item)
+{
+  g_signal_emit (self, signals[SIGNAL_ITEM_ACTIVATED], 0, item);
+}
+
+/**
+ * gst_clapper_playlist_new:
+ *
+ * Creates a new #GstClapperPlaylist.
+ *
+ * Returns: (transfer full): a new #GstClapperPlaylist instance.
+ */
+GstClapperPlaylist *
+gst_clapper_playlist_new (void)
+{
+  return g_object_new (GST_TYPE_CLAPPER_PLAYLIST, NULL);
+}
+
+/**
+ * gst_clapper_playlist_append:
+ * @playlist: #GstClapperPlaylist
+ * @item: #GstClapperPlaylistItem to append
+ *
+ * Adds a new #GstClapperPlaylistItem to the end of playlist.
+ *
+ * Returns: %TRUE if the item was added successfully.
+ */
+gboolean
+gst_clapper_playlist_append (GstClapperPlaylist * self, GstClapperPlaylistItem * item)
+{
+  gboolean added = FALSE;
+
+  g_return_val_if_fail (GST_IS_CLAPPER_PLAYLIST (self), FALSE);
+  g_return_val_if_fail (GST_IS_CLAPPER_PLAYLIST_ITEM (item), FALSE);
+  g_return_val_if_fail (item->owner_uuid == NULL, FALSE);
+
+  GST_OBJECT_LOCK (self);
+
+  added = g_array_append_val (self->items, item) != NULL;
+  if (added) {
+    gst_clapper_playlist_item_mark_added (item, self);
+    self->id_count++;
+  }
+
+  GST_OBJECT_UNLOCK (self);
+
+  return added;
+}
+
+/**
+ * gst_clapper_playlist_get_length:
+ * @playlist: #GstClapperPlaylist
+ *
+ * Returns: Amount of items in playlist.
+ */
+guint
+gst_clapper_playlist_get_length (GstClapperPlaylist * self)
+{
+  guint len;
+
+  g_return_val_if_fail (GST_IS_CLAPPER_PLAYLIST (self), 0);
+
+  GST_OBJECT_LOCK (self);
+  len = self->items->len;
+  GST_OBJECT_UNLOCK (self);
+
+  return len;
+}
+
+/**
+ * gst_clapper_playlist_get_item_at_index:
+ * @playlist: #GstClapperPlaylist
+ *
+ * Returns: (transfer none): A #GstClapperPlaylistItem at given index.
+ */
+GstClapperPlaylistItem *
+gst_clapper_playlist_get_item_at_index (GstClapperPlaylist * self, gint index)
+{
+  GstClapperPlaylistItem *item = NULL;
+
+  g_return_val_if_fail (GST_IS_CLAPPER_PLAYLIST (self), NULL);
+
+  GST_OBJECT_LOCK (self);
+
+  if (index < self->items->len)
+    goto out;
+
+  item = &g_array_index (self->items, GstClapperPlaylistItem, index);
+
+out:
+  GST_OBJECT_UNLOCK (self);
+
+  return item;
+}
+
+/**
+ * gst_clapper_playlist_get_active_item:
+ * @playlist: #GstClapperPlaylist
+ *
+ * Returns: (transfer none): A #GstClapperPlaylistItem that is
+ * currently playing.
+ */
+GstClapperPlaylistItem *
+gst_clapper_playlist_get_active_item (GstClapperPlaylist * self)
+{
+  gint active_index;
+
+  GST_OBJECT_LOCK (self);
+  active_index = self->active_index;
+  GST_OBJECT_UNLOCK (self);
+
+  return gst_clapper_playlist_get_item_at_index (self, active_index);
+}
+
+/**
+ * gst_clapper_playlist_remove_item_at_index:
+ * @playlist: #GstClapperPlaylist
+ * @index: Index of #GstClapperPlaylistItem to remove
+ *
+ * Removes item at given index from playlist.
+ *
+ * Returns: %TRUE if the item was removed successfully.
+ */
+gboolean
+gst_clapper_playlist_remove_item_at_index (GstClapperPlaylist * self, guint index)
+{
+  gboolean removed = FALSE;
+
+  g_return_val_if_fail (GST_IS_CLAPPER_PLAYLIST (self), FALSE);
+
+  GST_OBJECT_LOCK (self);
+
+  if (index >= self->items->len || index == self->active_index)
+    goto out;
+
+  removed = g_array_remove_index (self->items, index) != NULL;
+
+out:
+  GST_OBJECT_UNLOCK (self);
+
+  return removed;
+}
+
+/**
+ * gst_clapper_playlist_remove_item:
+ * @playlist: #GstClapperPlaylist
+ * @item: #GstClapperPlaylistItem object to remove
+ *
+ * Removes given playlist item from playlist.
+ *
+ * Returns: %TRUE if the item was removed successfully.
+ */
+gboolean
+gst_clapper_playlist_remove_item (GstClapperPlaylist * self,
+    GstClapperPlaylistItem * item)
+{
+  gint i;
+  gboolean removed = FALSE;
+
+  g_return_val_if_fail (GST_IS_CLAPPER_PLAYLIST (self), FALSE);
+  g_return_val_if_fail (GST_IS_CLAPPER_PLAYLIST_ITEM (item), FALSE);
+
+  GST_OBJECT_LOCK (self);
+
+  if (strcmp (self->uuid, item->owner_uuid) != 0)
+    goto out;
+
+  for (i = 0; i < self->items->len; i++) {
+    GstClapperPlaylistItem *curr_item;
+
+    curr_item = &g_array_index (self->items, GstClapperPlaylistItem, i);
+    if (!curr_item)
+      goto out;
+
+    if (item->id == curr_item->id) {
+      removed = g_array_remove_index (self->items, i) != NULL;
+      break;
+    }
+  }
+
+out:
+  GST_OBJECT_UNLOCK (self);
+
+  return removed;
+}

lib/gst/clapper/gstclapper-playlist.h

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#ifndef __GST_CLAPPER_PLAYLIST_H__
+#define __GST_CLAPPER_PLAYLIST_H__
+
+#include <gst/clapper/clapper-prelude.h>
+#include <gst/clapper/gstclapper-playlist-item.h>
+
+G_BEGIN_DECLS
+
+typedef struct _GstClapperPlaylist GstClapperPlaylist;
+typedef struct _GstClapperPlaylistClass GstClapperPlaylistClass;
+
+#define GST_TYPE_CLAPPER_PLAYLIST             (gst_clapper_playlist_get_type ())
+#define GST_IS_CLAPPER_PLAYLIST(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_CLAPPER_PLAYLIST))
+#define GST_IS_CLAPPER_PLAYLIST_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_CLAPPER_PLAYLIST))
+#define GST_CLAPPER_PLAYLIST_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_CLAPPER_PLAYLIST, GstClapperPlaylistClass))
+#define GST_CLAPPER_PLAYLIST(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_CLAPPER_PLAYLIST, GstClapperPlaylist))
+#define GST_CLAPPER_PLAYLIST_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_CLAPPER_PLAYLIST, GstClapperPlaylistClass))
+#define GST_CLAPPER_PLAYLIST_CAST(obj)        ((GstClapperPlaylist*)(obj))
+
+#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstClapperPlaylist, g_object_unref)
+#endif
+
+GST_CLAPPER_API
+GType gst_clapper_playlist_get_type                      (void);
+
+GST_CLAPPER_API
+GstClapperPlaylist * gst_clapper_playlist_new            (void);
+
+GST_CLAPPER_API
+gboolean gst_clapper_playlist_append                     (GstClapperPlaylist *playlist, GstClapperPlaylistItem *item);
+
+GST_CLAPPER_API
+guint gst_clapper_playlist_get_length                    (GstClapperPlaylist *playlist);
+
+GST_CLAPPER_API
+GstClapperPlaylistItem *
+    gst_clapper_playlist_get_item_at_index               (GstClapperPlaylist *playlist, gint index);
+
+GST_CLAPPER_API
+GstClapperPlaylistItem *
+    gst_clapper_playlist_get_active_item                 (GstClapperPlaylist *playlist);
+
+GST_CLAPPER_API
+gboolean gst_clapper_playlist_remove_item_at_index       (GstClapperPlaylist *playlist, guint index);
+
+GST_CLAPPER_API
+gboolean gst_clapper_playlist_remove_item                (GstClapperPlaylist *playlist, GstClapperPlaylistItem *item);
+
+G_END_DECLS
+
+#endif /* __GST_CLAPPER_PLAYLIST_H__ */

lib/gst/clapper/gstclapper.c

@@ -46,6 +46,7 @@
 #include "gstclapper-signal-dispatcher-private.h"
 #include "gstclapper-video-renderer-private.h"
 #include "gstclapper-media-info-private.h"
+#include "gstclapper-playlist-item-private.h"
 #include "gstclapper-mpris-private.h"
 
 GST_DEBUG_CATEGORY_STATIC (gst_clapper_debug);
@@ -79,8 +80,7 @@ enum
   PROP_SIGNAL_DISPATCHER,
   PROP_MPRIS,
   PROP_STATE,
-  PROP_URI,
-  PROP_SUBURI,
+  PROP_PLAYLIST,
   PROP_POSITION,
   PROP_DURATION,
   PROP_MEDIA_INFO,
@@ -134,6 +134,7 @@ struct _GstClapper
   gchar *uri;
   gchar *redirect_uri;
   gchar *suburi;
+  gchar *custom_title;
 
   GThread *thread;
   GMutex lock;
@@ -188,6 +189,12 @@ struct _GstClapper
   gchar *audio_sid;
   gchar *subtitle_sid;
   gulong stream_notify_id;
+
+  /* For playlist */
+  GstClapperPlaylist *playlist;
+  GstClapperPlaylistItem *active_item;
+  gulong item_activated_id;
+  gulong suburi_notify_id;
 };
 
 struct _GstClapperClass
@@ -320,12 +327,8 @@ gst_clapper_class_init (GstClapperClass * klass)
       GST_TYPE_CLAPPER_STATE, DEFAULT_STATE, G_PARAM_READABLE |
       G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
-  param_specs[PROP_URI] = g_param_spec_string ("uri", "URI", "Current URI",
-      DEFAULT_URI, G_PARAM_READWRITE |
-      G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  param_specs[PROP_SUBURI] = g_param_spec_string ("suburi", "Subtitle URI",
-      "Current Subtitle URI", NULL, G_PARAM_READWRITE |
+  param_specs[PROP_PLAYLIST] = g_param_spec_string ("playlist", "Playlist",
+      "Current Playlist", NULL, G_PARAM_READWRITE |
       G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
   param_specs[PROP_POSITION] =
@@ -519,6 +522,8 @@ gst_clapper_finalize (GObject * object)
     g_object_unref (self->signal_dispatcher);
   if (self->mpris)
     g_object_unref (self->mpris);
+  if (self->playlist)
+    gst_object_unref (self->playlist);
   if (self->current_vis_element)
     gst_object_unref (self->current_vis_element);
   if (self->collection)
@@ -567,35 +572,6 @@ uri_loaded_signal_data_free (UriLoadedSignalData * data)
   g_free (data);
 }
 
-static gboolean
-gst_clapper_set_uri_internal (gpointer user_data)
-{
-  GstClapper *self = user_data;
-
-  gst_clapper_stop_internal (self, FALSE);
-
-  g_mutex_lock (&self->lock);
-  GST_DEBUG_OBJECT (self, "Changing URI to '%s'", GST_STR_NULL (self->uri));
-  g_object_set (self->playbin, "uri", self->uri, NULL);
-  g_object_set (self->playbin, "suburi", NULL, NULL);
-  self->can_start = TRUE;
-
-  if (g_signal_handler_find (self, G_SIGNAL_MATCH_ID,
-          signals[SIGNAL_URI_LOADED], 0, NULL, NULL, NULL) != 0) {
-    UriLoadedSignalData *data = g_new (UriLoadedSignalData, 1);
-
-    data->clapper = g_object_ref (self);
-    data->uri = g_strdup (self->uri);
-    gst_clapper_signal_dispatcher_dispatch (self->signal_dispatcher, self,
-        uri_loaded_dispatch, data,
-        (GDestroyNotify) uri_loaded_signal_data_free);
-  }
-
-  g_mutex_unlock (&self->lock);
-
-  return G_SOURCE_REMOVE;
-}
-
 static gboolean
 gst_clapper_set_suburi_internal (gpointer user_data)
 {
@@ -628,6 +604,100 @@ gst_clapper_set_suburi_internal (gpointer user_data)
   return G_SOURCE_REMOVE;
 }
 
+static void
+suburi_notify_cb (GstClapperPlaylistItem * item, GParamSpec * pspec,
+    GstClapper * self)
+{
+  g_mutex_lock (&self->lock);
+  g_free (self->suburi);
+  self->suburi = g_strdup (item->suburi);
+  GST_DEBUG_OBJECT (self, "Set suburi: %s", self->suburi);
+  g_mutex_unlock (&self->lock);
+
+  g_main_context_invoke_full (self->context, G_PRIORITY_DEFAULT + 1,
+      gst_clapper_set_suburi_internal, self, NULL);
+}
+
+static void
+gst_clapper_set_playlist_item_locked (GstClapper * self,
+    GstClapperPlaylistItem * item)
+{
+  if (self->suburi_notify_id)
+    g_signal_handler_disconnect (self->active_item, self->suburi_notify_id);
+
+  gst_object_replace ((GstObject **) & self->active_item,
+      (GstObject *) item);
+
+  g_free (self->uri);
+  self->uri = g_strdup (self->active_item->uri);
+
+  g_free (self->redirect_uri);
+  self->redirect_uri = NULL;
+
+  g_free (self->suburi);
+  self->suburi = g_strdup (self->active_item->suburi);
+
+  g_free (self->custom_title);
+  self->custom_title = g_strdup (self->active_item->custom_title);
+
+  GST_DEBUG_OBJECT (self, "Changing URI to '%s'",
+      GST_STR_NULL (self->uri));
+  g_object_set (self->playbin, "uri", self->uri, NULL);
+
+  GST_DEBUG_OBJECT (self, "Changing SUBURI to '%s'",
+      GST_STR_NULL (self->suburi));
+  g_object_set (self->playbin, "suburi", self->suburi, NULL);
+
+  self->suburi_notify_id = g_signal_connect (self->active_item,
+      "notify::suburi", G_CALLBACK (suburi_notify_cb), self);
+
+  self->can_start = TRUE;
+
+  if (g_signal_handler_find (self, G_SIGNAL_MATCH_ID,
+          signals[SIGNAL_URI_LOADED], 0, NULL, NULL, NULL) != 0) {
+    UriLoadedSignalData *data = g_new (UriLoadedSignalData, 1);
+
+    data->clapper = g_object_ref (self);
+    data->uri = g_strdup (self->uri);
+    gst_clapper_signal_dispatcher_dispatch (self->signal_dispatcher, self,
+        uri_loaded_dispatch, data,
+        (GDestroyNotify) uri_loaded_signal_data_free);
+  }
+}
+
+static gboolean
+gst_clapper_set_playlist_internal (gpointer user_data)
+{
+  GstClapper *self = user_data;
+  GstClapperPlaylistItem *item;
+
+  gst_clapper_stop_internal (self, FALSE);
+
+  g_mutex_lock (&self->lock);
+  item = gst_clapper_playlist_get_item_at_index (self->playlist, 0);
+  if (!item) {
+    GST_DEBUG_OBJECT (self, "Set empty playlist");
+    goto out;
+  }
+  gst_clapper_set_playlist_item_locked (self, item);
+
+out:
+  g_mutex_unlock (&self->lock);
+
+  return G_SOURCE_REMOVE;
+}
+
+static void
+item_activated_cb (G_GNUC_UNUSED GstClapperPlaylist * playlist,
+   GstClapperPlaylistItem * item, gpointer user_data)
+{
+  GstClapper *self = GST_CLAPPER (user_data);
+
+  g_mutex_lock (&self->lock);
+  gst_clapper_set_playlist_item_locked (self, item);
+  g_mutex_unlock (&self->lock);
+}
+
 static void
 gst_clapper_set_rate_internal (GstClapper * self)
 {
@@ -664,35 +734,21 @@ gst_clapper_set_property (GObject * object, guint prop_id,
     case PROP_MPRIS:
       self->mpris = g_value_dup_object (value);
       break;
-    case PROP_URI:{
+    case PROP_PLAYLIST:
       g_mutex_lock (&self->lock);
-      g_free (self->uri);
-      g_free (self->redirect_uri);
-      self->redirect_uri = NULL;
-
-      g_free (self->suburi);
-      self->suburi = NULL;
-
-      self->uri = g_value_dup_string (value);
-      GST_DEBUG_OBJECT (self, "Set uri=%s", self->uri);
+      if (self->playlist) {
+        if (self->item_activated_id)
+          g_signal_handler_disconnect (self->playlist, self->item_activated_id);
+        gst_object_unref (self->playlist);
+      }
+      self->playlist = g_value_dup_object (value);
+      self->item_activated_id = g_signal_connect (self->playlist, "item-activated",
+          G_CALLBACK (item_activated_cb), self);
       g_mutex_unlock (&self->lock);
 
       g_main_context_invoke_full (self->context, G_PRIORITY_DEFAULT,
-          gst_clapper_set_uri_internal, self, NULL);
+          gst_clapper_set_playlist_internal, self, NULL);
       break;
-    }
-    case PROP_SUBURI:{
-      g_mutex_lock (&self->lock);
-      g_free (self->suburi);
-
-      self->suburi = g_value_dup_string (value);
-      GST_DEBUG_OBJECT (self, "Set suburi=%s", self->suburi);
-      g_mutex_unlock (&self->lock);
-
-      g_main_context_invoke_full (self->context, G_PRIORITY_DEFAULT,
-          gst_clapper_set_suburi_internal, self, NULL);
-      break;
-    }
     case PROP_VOLUME: {
       GValue volume_linear = G_VALUE_INIT;
       gdouble volume = g_value_get_double (value);
@@ -764,18 +820,6 @@ gst_clapper_get_property (GObject * object, guint prop_id,
       g_value_set_enum (value, self->app_state);
       g_mutex_unlock (&self->lock);
       break;
-    case PROP_URI:
-      g_mutex_lock (&self->lock);
-      g_value_set_string (value, self->uri);
-      g_mutex_unlock (&self->lock);
-      break;
-    case PROP_SUBURI:
-      g_mutex_lock (&self->lock);
-      g_value_set_string (value, self->suburi);
-      g_mutex_unlock (&self->lock);
-      GST_DEBUG_OBJECT (self, "Returning suburi=%s",
-          g_value_get_string (value));
-      break;
     case PROP_POSITION:{
       gint64 position = GST_CLOCK_TIME_NONE;
 
@@ -785,12 +829,11 @@ gst_clapper_get_property (GObject * object, guint prop_id,
           GST_TIME_ARGS (g_value_get_uint64 (value)));
       break;
     }
-    case PROP_DURATION:{
+    case PROP_DURATION:
       g_value_set_uint64 (value, self->cached_duration);
       GST_TRACE_OBJECT (self, "Returning duration=%" GST_TIME_FORMAT,
           GST_TIME_ARGS (g_value_get_uint64 (value)));
       break;
-    }
     case PROP_MEDIA_INFO:{
       GstClapperMediaInfo *media_info = gst_clapper_get_media_info (self);
       g_value_take_object (value, media_info);
@@ -837,20 +880,18 @@ gst_clapper_get_property (GObject * object, guint prop_id,
     case PROP_PIPELINE:
       g_value_set_object (value, self->playbin);
       break;
-    case PROP_VIDEO_MULTIVIEW_MODE:{
+    case PROP_VIDEO_MULTIVIEW_MODE:
       g_object_get_property (G_OBJECT (self->playbin), "video-multiview-mode",
           value);
       GST_TRACE_OBJECT (self, "Return multiview mode=%d",
           g_value_get_enum (value));
       break;
-    }
-    case PROP_VIDEO_MULTIVIEW_FLAGS:{
+    case PROP_VIDEO_MULTIVIEW_FLAGS:
       g_object_get_property (G_OBJECT (self->playbin), "video-multiview-flags",
           value);
       GST_TRACE_OBJECT (self, "Return multiview flags=%x",
           g_value_get_flags (value));
       break;
-    }
     case PROP_AUDIO_VIDEO_OFFSET:
       g_object_get_property (G_OBJECT (self->playbin), "av-offset", value);
       break;
@@ -1804,11 +1845,13 @@ request_state_cb (G_GNUC_UNUSED GstBus * bus, GstMessage * msg,
 static void
 media_info_update (GstClapper * self, GstClapperMediaInfo * info)
 {
-  /* Update title from new tags or leave the title from URI */
-  gchar *tags_title = get_from_tags (self, info, get_title);
-  if (tags_title) {
-    g_free (info->title);
-    info->title = tags_title;
+  if (!self->custom_title) {
+    /* Update title from new tags or leave the title from URI */
+    gchar *tags_title = get_from_tags (self, info, get_title);
+    if (tags_title) {
+      g_free (info->title);
+      info->title = tags_title;
+    }
   }
 
   g_free (info->container);
@@ -2817,7 +2860,10 @@ gst_clapper_media_info_create (GstClapper * self)
         GST_TYPE_CLAPPER_SUBTITLE_INFO);
   }
 
-  media_info->title = get_from_tags (self, media_info, get_title);
+  if (self->custom_title)
+    media_info->title = g_strdup (self->custom_title);
+  if (!media_info->title)
+    media_info->title = get_from_tags (self, media_info, get_title);
   if (!media_info->title)
     media_info->title = get_title_from_uri (self->uri);
 
@@ -3630,77 +3676,19 @@ gst_clapper_get_state (GstClapper * self)
 }
 
 /**
- * gst_clapper_get_uri:
+ * gst_clapper_set_playlist:
  * @clapper: #GstClapper instance
+ * @playlist: #GstClapperPlaylist instance
  *
- * Gets the URI of the currently-playing stream.
- *
- * Returns: (transfer full): a string containing the URI of the
- * currently-playing stream. g_free() after usage.
- */
-gchar *
-gst_clapper_get_uri (GstClapper * self)
-{
-  gchar *val;
-
-  g_return_val_if_fail (GST_IS_CLAPPER (self), DEFAULT_URI);
-
-  g_object_get (self, "uri", &val, NULL);
-
-  return val;
-}
-
-/**
- * gst_clapper_set_uri:
- * @clapper: #GstClapper instance
- * @uri: next URI to play.
- *
- * Sets the next URI to play.
+ * Sets the new #GstClapperPlaylist
  */
 void
-gst_clapper_set_uri (GstClapper * self, const gchar * val)
+gst_clapper_set_playlist (GstClapper * self, GstClapperPlaylist * val)
 {
   g_return_if_fail (GST_IS_CLAPPER (self));
+  g_return_if_fail (GST_IS_CLAPPER_PLAYLIST (val));
 
-  g_object_set (self, "uri", val, NULL);
-}
-
-/**
- * gst_clapper_set_subtitle_uri:
- * @clapper: #GstClapper instance
- * @uri: subtitle URI
- *
- * Sets the external subtitle URI. This should be combined with a call to
- * gst_clapper_set_subtitle_track_enabled(@clapper, TRUE) so the subtitles are actually
- * rendered.
- */
-void
-gst_clapper_set_subtitle_uri (GstClapper * self, const gchar * suburi)
-{
-  g_return_if_fail (GST_IS_CLAPPER (self));
-
-  g_object_set (self, "suburi", suburi, NULL);
-}
-
-/**
- * gst_clapper_get_subtitle_uri:
- * @clapper: #GstClapper instance
- *
- * current subtitle URI
- *
- * Returns: (transfer full): URI of the current external subtitle.
- *   g_free() after usage.
- */
-gchar *
-gst_clapper_get_subtitle_uri (GstClapper * self)
-{
-  gchar *val = NULL;
-
-  g_return_val_if_fail (GST_IS_CLAPPER (self), NULL);
-
-  g_object_get (self, "suburi", &val, NULL);
-
-  return val;
+  g_object_set (self, "playlist", val, NULL);
 }
 
 /**

lib/gst/clapper/gstclapper.h

@@ -30,6 +30,8 @@
 #include <gst/clapper/gstclapper-signal-dispatcher.h>
 #include <gst/clapper/gstclapper-video-renderer.h>
 #include <gst/clapper/gstclapper-media-info.h>
+#include <gst/clapper/gstclapper-playlist.h>
+#include <gst/clapper/gstclapper-playlist-item.h>
 #include <gst/clapper/gstclapper-mpris.h>
 
 G_BEGIN_DECLS
@@ -193,16 +195,7 @@ GST_CLAPPER_API
 gdouble      gst_clapper_get_rate                           (GstClapper *clapper);
 
 GST_CLAPPER_API
-gchar *      gst_clapper_get_uri                            (GstClapper *clapper);
-
-GST_CLAPPER_API
-void         gst_clapper_set_uri                            (GstClapper *clapper, const gchar *uri);
-
-GST_CLAPPER_API
-gchar *      gst_clapper_get_subtitle_uri                   (GstClapper *clapper);
-
-GST_CLAPPER_API
-void         gst_clapper_set_subtitle_uri                   (GstClapper *clapper, const gchar *uri);
+void         gst_clapper_set_playlist                       (GstClapper *clapper, GstClapperPlaylist *playlist);
 
 GST_CLAPPER_API
 GstClockTime gst_clapper_get_position                       (GstClapper *clapper);

lib/gst/clapper/meson.build

@@ -8,6 +8,8 @@ gstclapper_sources = [
   'gstclapper-g-main-context-signal-dispatcher.c',
   'gstclapper-video-overlay-video-renderer.c',
   'gstclapper-visualization.c',
+  'gstclapper-playlist.c',
+  'gstclapper-playlist-item.c',
   'gstclapper-mpris.c',
   'gstclapper-gtk4-plugin.c',
 
@@ -26,6 +28,8 @@ gstclapper_headers = [
   'gstclapper-g-main-context-signal-dispatcher.h',
   'gstclapper-video-overlay-video-renderer.h',
   'gstclapper-visualization.h',
+  'gstclapper-playlist.h',
+  'gstclapper-playlist-item.h',
   'gstclapper-mpris.h',
   'gstclapper-gtk4-plugin.h',
 ]