gstreamer/gst-libs/gst/vaapi/gstvaapidisplay.h

179 lines
5.1 KiB
C

/*
* gstvaapidisplay.h - VA display abstraction
*
* gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef GST_VAAPI_DISPLAY_H
#define GST_VAAPI_DISPLAY_H
#include <va/va.h>
#include <gst/gst.h>
#include <gst/vaapi/gstvaapiimageformat.h>
G_BEGIN_DECLS
#define GST_VAAPI_TYPE_DISPLAY \
(gst_vaapi_display_get_type())
#define GST_VAAPI_DISPLAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), \
GST_VAAPI_TYPE_DISPLAY, \
GstVaapiDisplay))
#define GST_VAAPI_DISPLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), \
GST_VAAPI_TYPE_DISPLAY, \
GstVaapiDisplayClass))
#define GST_VAAPI_IS_DISPLAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_DISPLAY))
#define GST_VAAPI_IS_DISPLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_DISPLAY))
#define GST_VAAPI_DISPLAY_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), \
GST_VAAPI_TYPE_DISPLAY, \
GstVaapiDisplayClass))
/**
* GST_VAAPI_DISPLAY_VADISPLAY:
* @display: a #GstVaapiDisplay
*
* Macro that evaluates to the #VADisplay bound to @display
*/
#define GST_VAAPI_DISPLAY_VADISPLAY(display) \
gst_vaapi_display_get_display(display)
/**
* GST_VAAPI_DISPLAY_LOCK:
* @display: a #GstVaapiDisplay
*
* Locks @display
*/
#define GST_VAAPI_DISPLAY_LOCK(display) \
gst_vaapi_display_lock(display)
/**
* GST_VAAPI_DISPLAY_UNLOCK:
* @display: a #GstVaapiDisplay
*
* Unlocks @display
*/
#define GST_VAAPI_DISPLAY_UNLOCK(display) \
gst_vaapi_display_unlock(display)
typedef struct _GstVaapiDisplay GstVaapiDisplay;
typedef struct _GstVaapiDisplayPrivate GstVaapiDisplayPrivate;
typedef struct _GstVaapiDisplayClass GstVaapiDisplayClass;
/**
* GstVaapiDisplay:
*
* Base class for VA displays.
*/
struct _GstVaapiDisplay {
/*< private >*/
GObject parent_instance;
GstVaapiDisplayPrivate *priv;
};
/**
* GstVaapiDisplayClass:
* @open_display: virtual function to open a display
* @close_display: virtual function to close a display
* @lock_display: virtual function to lock a display
* @unlock_display: virtual function to unlock a display
* @get_display: virtual function to retrieve the #VADisplay
* @get_size: virtual function to retrieve the display dimensions, in pixels
* @get_size_mm: virtual function to retrieve the display dimensions, in millimeters
*
* Base class for VA displays.
*/
struct _GstVaapiDisplayClass {
/*< private >*/
GObjectClass parent_class;
/*< public >*/
gboolean (*open_display) (GstVaapiDisplay *display);
void (*close_display) (GstVaapiDisplay *display);
void (*lock_display) (GstVaapiDisplay *display);
void (*unlock_display)(GstVaapiDisplay *display);
VADisplay (*get_display) (GstVaapiDisplay *display);
void (*get_size) (GstVaapiDisplay *display,
guint *pwidth, guint *pheight);
void (*get_size_mm) (GstVaapiDisplay *display,
guint *pwidth, guint *pheight);
};
GType
gst_vaapi_display_get_type(void);
GstVaapiDisplay *
gst_vaapi_display_new_with_display(VADisplay va_display);
void
gst_vaapi_display_lock(GstVaapiDisplay *display);
void
gst_vaapi_display_unlock(GstVaapiDisplay *display);
VADisplay
gst_vaapi_display_get_display(GstVaapiDisplay *display);
guint
gst_vaapi_display_get_width(GstVaapiDisplay *display);
guint
gst_vaapi_display_get_height(GstVaapiDisplay *display);
void
gst_vaapi_display_get_size(GstVaapiDisplay *display, guint *pwidth, guint *pheight);
void
gst_vaapi_display_get_pixel_aspect_ratio(
GstVaapiDisplay *display,
guint *par_n,
guint *par_d
);
gboolean
gst_vaapi_display_has_profile(GstVaapiDisplay *display, VAProfile profile);
GstCaps *
gst_vaapi_display_get_image_caps(GstVaapiDisplay *display);
gboolean
gst_vaapi_display_has_image_format(
GstVaapiDisplay *display,
GstVaapiImageFormat format
);
GstCaps *
gst_vaapi_display_get_subpicture_caps(GstVaapiDisplay *display);
gboolean
gst_vaapi_display_has_subpicture_format(
GstVaapiDisplay *display,
GstVaapiImageFormat format
);
G_END_DECLS
#endif /* GST_VAAPI_DISPLAY_H */