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(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;
    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 */