gstreamer/gst/vaapi/gstvaapisink.h

/*
 *  gstvaapisink.h - VA-API video sink
 *
 *  Copyright (C) 2010-2011 Splitted-Desktop Systems
 *    Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
 *  Copyright (C) 2011-2014 Intel Corporation
 *    Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2.1
 *  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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free
 *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301 USA
 */

#ifndef GST_VAAPISINK_H
#define GST_VAAPISINK_H

#include "gstvaapipluginbase.h"
#include <gst/vaapi/gstvaapiwindow.h>
#include "gstvaapipluginutil.h"

G_BEGIN_DECLS

#define GST_TYPE_VAAPISINK \
  (gst_vaapisink_get_type ())
#define GST_VAAPISINK_CAST(obj) \
  ((GstVaapiSink *)(obj))
#define GST_VAAPISINK(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VAAPISINK, GstVaapiSink))
#define GST_VAAPISINK_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VAAPISINK, GstVaapiSinkClass))
#define GST_IS_VAAPISINK(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VAAPISINK))
#define GST_IS_VAAPISINK_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VAAPISINK))
#define GST_VAAPISINK_GET_CLASS(obj) \
  (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VAAPISINK, GstVaapiSinkClass))

typedef struct _GstVaapiSink                    GstVaapiSink;
typedef struct _GstVaapiSinkClass               GstVaapiSinkClass;
typedef struct _GstVaapiSinkBackend             GstVaapiSinkBackend;

typedef gboolean (*GstVaapiSinkCreateWindowFunc) (GstVaapiSink * sink,
    guint width, guint height);
typedef gboolean (*GstVaapiSinkCreateWindowFromHandleFunc) (GstVaapiSink * sink,
    guintptr window);
typedef gboolean (*GstVaapiSinkRenderSurfaceFunc) (GstVaapiSink * sink,
    GstVaapiSurface * surface, const GstVaapiRectangle * surface_rect,
    guint flags);
typedef gboolean (*GstVaapiSinkHandleEventsFunc) (GstVaapiSink * sink);
typedef gboolean (*GstVaapiSinkPreStartEventThreadFunc) (GstVaapiSink * sink);
typedef gboolean (*GstVaapiSinkPreStopEventThreadFunc) (GstVaapiSink * sink);

struct _GstVaapiSinkBackend
{
  GstVaapiSinkCreateWindowFunc create_window;
  GstVaapiSinkCreateWindowFromHandleFunc create_window_from_handle;
  GstVaapiSinkRenderSurfaceFunc render_surface;

  /* Event threads handling */
  gboolean event_thread_needed;
  GstVaapiSinkHandleEventsFunc handle_events;
  GstVaapiSinkPreStartEventThreadFunc pre_start_event_thread;
  GstVaapiSinkPreStopEventThreadFunc pre_stop_event_thread;
};

struct _GstVaapiSink
{
  /*< private >*/
  GstVaapiPluginBase parent_instance;

  const GstVaapiSinkBackend *backend;

  GstCaps *caps;
  GstVaapiWindow *window;
  guint window_width;
  guint window_height;
  GstBuffer *video_buffer;
  guint video_width;
  guint video_height;
  gint video_par_n;
  gint video_par_d;
  GstVideoInfo video_info;
  GstVaapiRectangle display_rect;
  GstVaapiRotation rotation;
  GstVaapiRotation rotation_req;
  guint color_standard;
  gint32 view_id;
  GThread *event_thread;
  volatile gboolean event_thread_cancel;

  /* Color balance values */
  guint cb_changed;
  GValue cb_values[4];
  GList *cb_channels;

  guint handle_events : 1;
  guint foreign_window : 1;
  guint fullscreen : 1;
  guint use_overlay : 1;
  guint use_rotation : 1;
  guint keep_aspect : 1;
};

struct _GstVaapiSinkClass
{
  /*< private >*/
  GstVaapiPluginBaseClass parent_class;
};

GType
gst_vaapisink_get_type (void) G_GNUC_CONST;

G_END_DECLS

#endif /* GST_VAAPISINK_H */