gst-libs/gst/vaapi/gstvaapiwindow.h

   1 /*
   2  *  gstvaapiwindow.h - VA window abstraction
   3  *
   4  *  gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
  19  */
  20
  21 #ifndef GST_VAAPI_WINDOW_H
  22 #define GST_VAAPI_WINDOW_H
  23
  24 #include <gst/video/gstvideosink.h>
  25 #include <gst/vaapi/gstvaapidisplay.h>
  26 #include <gst/vaapi/gstvaapisurface.h>
  27
  28 G_BEGIN_DECLS
  29
  30 enum {
  31     GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD       = 1 << 0,
  32     GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD    = 1 << 1,
  33     GST_VAAPI_PICTURE_STRUCTURE_FRAME           =
  34     (
  35         GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD |
  36         GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD
  37     ),
  38     GST_VAAPI_COLOR_STANDARD_ITUR_BT_601        = 1 << 2,
  39     GST_VAAPI_COLOR_STANDARD_ITUR_BT_709        = 1 << 3,
  40 };
  41
  42 #define GST_VAAPI_TYPE_WINDOW \
  43     (gst_vaapi_window_get_type())
  44
  45 #define GST_VAAPI_WINDOW(obj)                           \
  46     (G_TYPE_CHECK_INSTANCE_CAST((obj),                  \
  47                                 GST_VAAPI_TYPE_WINDOW,  \
  48                                 GstVaapiWindow))
  49
  50 #define GST_VAAPI_WINDOW_CLASS(klass)                   \
  51     (G_TYPE_CHECK_CLASS_CAST((klass),                   \
  52                              GST_VAAPI_TYPE_WINDOW,     \
  53                              GstVaapiWindowClass))
  54
  55 #define GST_VAAPI_IS_WINDOW(obj) \
  56     (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_WINDOW))
  57
  58 #define GST_VAAPI_IS_WINDOW_CLASS(klass) \
  59     (G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_WINDOW))
  60
  61 #define GST_VAAPI_WINDOW_GET_CLASS(obj)                 \
  62     (G_TYPE_INSTANCE_GET_CLASS((obj),                   \
  63                                GST_VAAPI_TYPE_WINDOW,   \
  64                                GstVaapiWindowClass))
  65
  66 typedef struct _GstVaapiWindow                  GstVaapiWindow;
  67 typedef struct _GstVaapiWindowPrivate           GstVaapiWindowPrivate;
  68 typedef struct _GstVaapiWindowClass             GstVaapiWindowClass;
  69
  70 /**
  71  * GstVaapiWindow:
  72  *
  73  * Base class for system-dependent windows.
  74  */
  75 struct _GstVaapiWindow {
  76     /*< private >*/
  77     GObject parent_instance;
  78
  79     /*< private >*/
  80     GstVaapiWindowPrivate *priv;
  81 };
  82
  83 /**
  84  * GstVaapiWindowClass:
  85  * @create: virtual function to create a window with width and height
  86  * @destroy: virtual function to destroy a window
  87  * @show: virtual function to show (map) a window
  88  * @hide: virtual function to hide (unmap) a window
  89  * @resize: virtual function to resize a window
  90  * @render: virtual function to render a #GstVaapiSurface into a window
  91  *
  92  * Base class for system-dependent windows.
  93  */
  94 struct _GstVaapiWindowClass {
  95     /*< private >*/
  96     GObjectClass parent_class;
  97
  98     gboolean    (*create) (GstVaapiWindow *window, guint *width, guint *height);
  99     void        (*destroy)(GstVaapiWindow *window);
 100     gboolean    (*show)   (GstVaapiWindow *window);
 101     gboolean    (*hide)   (GstVaapiWindow *window);
 102     gboolean    (*resize) (GstVaapiWindow *window, guint width, guint height);
 103     gboolean    (*render) (GstVaapiWindow *window,
 104                            GstVaapiSurface *surface,
 105                            const GstVideoRectangle *src_rect,
 106                            const GstVideoRectangle *dst_rect,
 107                            guint flags);
 108 };
 109
 110 GType
 111 gst_vaapi_window_get_type(void);
 112
 113 void
 114 gst_vaapi_window_show(GstVaapiWindow *window);
 115
 116 void
 117 gst_vaapi_window_hide(GstVaapiWindow *window);
 118
 119 guint
 120 gst_vaapi_window_get_width(GstVaapiWindow *window);
 121
 122 guint
 123 gst_vaapi_window_get_height(GstVaapiWindow *window);
 124
 125 void
 126 gst_vaapi_window_get_size(GstVaapiWindow *window, guint *pwidth, guint *pheight);
 127
 128 void
 129 gst_vaapi_window_set_width(GstVaapiWindow *window, guint width);
 130
 131 void
 132 gst_vaapi_window_set_height(GstVaapiWindow *window, guint height);
 133
 134 void
 135 gst_vaapi_window_set_size(GstVaapiWindow *window, guint width, guint height);
 136
 137 gboolean
 138 gst_vaapi_window_put_surface(
 139     GstVaapiWindow          *window,
 140     GstVaapiSurface         *surface,
 141     const GstVideoRectangle *src_rect,
 142     const GstVideoRectangle *dst_rect,
 143     guint                    flags
 144 );
 145
 146 G_END_DECLS
 147
 148 #endif /* GST_VAAPI_WINDOW_H */