text: /* GStreamer
   * Copyright (C) 2020 Igalia, S.L.
   *     Author: Víctor Jáquez <vjaquez@igalia.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 "gstvadisplay.h"
  
  G_BEGIN_DECLS
  
  gboolean              gst_va_ensure_element_data          (gpointer element,
                                                             const gchar *render_device_path,
                                                             GstVaDisplay ** display_ptr);
  gboolean              gst_va_handle_set_context           (GstElement * element,
                                                             GstContext * context,
                                                             const gchar *render_device_path,
                                                             GstVaDisplay ** display_ptr);
  gboolean              gst_va_handle_context_query         (GstElement * element,
                                                             GstQuery * query,
                                                             GstVaDisplay * display);
  void                  gst_va_element_propagate_display_context (GstElement * element,
                                                             GstVaDisplay * display);
  
  gboolean              gst_context_get_va_display          (GstContext * context,
                                                             const gchar * type_name,
                                                             const gchar * render_device_path,
                                                             GstVaDisplay ** display_ptr);
  void                  gst_context_set_va_display          (GstContext * context,
                                                             GstVaDisplay * display);
  
  G_END_DECLS
  