gst-libs/gst/vaapi/gstvaapicontext.h

   1 /*
   2  *  gstvaapicontext.h - VA context abstraction
   3  *
   4  *  Copyright (C) 2010-2011 Splitted-Desktop Systems
   5  *  Copyright (C) 2011 Intel Corporation
   6  *
   7  *  This library is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU Lesser General Public License
   9  *  as published by the Free Software Foundation; either version 2.1
  10  *  of the License, or (at your option) any later version.
  11  *
  12  *  This library is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  Lesser General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Lesser General Public
  18  *  License along with this library; if not, write to the Free
  19  *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20  *  Boston, MA 02110-1301 USA
  21  */
  22
  23 #ifndef GST_VAAPI_CONTEXT_H
  24 #define GST_VAAPI_CONTEXT_H
  25
  26 #include <gst/vaapi/gstvaapiobject.h>
  27 #include <gst/vaapi/gstvaapiprofile.h>
  28 #include <gst/vaapi/gstvaapidisplay.h>
  29 #include <gst/vaapi/gstvaapisurface.h>
  30 #include <gst/video/video-overlay-composition.h>
  31 #include <gst/vaapi/gstvaapisurfacepool.h>
  32
  33 G_BEGIN_DECLS
  34
  35 #define GST_VAAPI_TYPE_CONTEXT \
  36     (gst_vaapi_context_get_type())
  37
  38 #define GST_VAAPI_CONTEXT(obj)                          \
  39     (G_TYPE_CHECK_INSTANCE_CAST((obj),                  \
  40                                 GST_VAAPI_TYPE_CONTEXT, \
  41                                 GstVaapiContext))
  42
  43 #define GST_VAAPI_CONTEXT_CLASS(klass)                  \
  44     (G_TYPE_CHECK_CLASS_CAST((klass),                   \
  45                              GST_VAAPI_TYPE_CONTEXT,    \
  46                              GstVaapiContextClass))
  47
  48 #define GST_VAAPI_IS_CONTEXT(obj) \
  49     (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_CONTEXT))
  50
  51 #define GST_VAAPI_IS_CONTEXT_CLASS(klass) \
  52     (G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_CONTEXT))
  53
  54 #define GST_VAAPI_CONTEXT_GET_CLASS(obj)                \
  55     (G_TYPE_INSTANCE_GET_CLASS((obj),                   \
  56                                GST_VAAPI_TYPE_CONTEXT,  \
  57                                GstVaapiContextClass))
  58
  59 typedef struct _GstVaapiContext                 GstVaapiContext;
  60 typedef struct _GstVaapiContextPrivate          GstVaapiContextPrivate;
  61 typedef struct _GstVaapiContextClass            GstVaapiContextClass;
  62
  63 /**
  64  * GstVaapiContext:
  65  *
  66  * A VA context wrapper.
  67  */
  68 struct _GstVaapiContext {
  69     /*< private >*/
  70     GstVaapiObject parent_instance;
  71
  72     GstVaapiContextPrivate *priv;
  73 };
  74
  75 /**
  76  * GstVaapiContextClass:
  77  *
  78  * A VA context wrapper class.
  79  */
  80 struct _GstVaapiContextClass {
  81     /*< private >*/
  82     GstVaapiObjectClass parent_class;
  83 };
  84
  85 GType
  86 gst_vaapi_context_get_type(void) G_GNUC_CONST;
  87
  88 GstVaapiContext *
  89 gst_vaapi_context_new(
  90     GstVaapiDisplay    *display,
  91     GstVaapiProfile     profile,
  92     GstVaapiEntrypoint  entrypoint,
  93     GstVaapiRateControl rate_control,
  94     guint               width,
  95     guint               height,
  96     guint               surface_num
  97 );
  98
  99 gboolean
 100 gst_vaapi_context_reset(
 101     GstVaapiContext    *context,
 102     GstVaapiProfile     profile,
 103     GstVaapiEntrypoint  entrypoint,
 104     unsigned int        width,
 105     unsigned int        height,
 106     unsigned int        surface_num
 107 );
 108
 109 GstVaapiID
 110 gst_vaapi_context_get_id(GstVaapiContext *context);
 111
 112 GstVaapiProfile
 113 gst_vaapi_context_get_profile(GstVaapiContext *context);
 114
 115 gboolean
 116 gst_vaapi_context_set_profile(GstVaapiContext *context, GstVaapiProfile profile);
 117
 118 GstVaapiEntrypoint
 119 gst_vaapi_context_get_entrypoint(GstVaapiContext *context);
 120
 121 void
 122 gst_vaapi_context_get_size(
 123     GstVaapiContext *context,
 124     guint           *pwidth,
 125     guint           *pheight
 126 );
 127
 128 GstVaapiSurface *
 129 gst_vaapi_context_get_surface(GstVaapiContext *context);
 130
 131 GstVaapiSurfacePool *
 132 gst_vaapi_context_get_surface_pool(GstVaapiContext *context);
 133
 134
 135 guint
 136 gst_vaapi_context_get_surface_count(GstVaapiContext *context);
 137
 138 guint
 139 gst_vaapi_context_get_surface_left_capability(GstVaapiContext *context);
 140
 141 void
 142 gst_vaapi_context_put_surface(GstVaapiContext *context, GstVaapiSurface *surface);
 143
 144 GstVaapiSurface *
 145 gst_vaapi_context_find_surface_by_id(GstVaapiContext *context, GstVaapiID id);
 146
 147 gboolean
 148 gst_vaapi_context_apply_composition(
 149     GstVaapiContext            *context,
 150     GstVideoOverlayComposition *composition
 151 );
 152
 153 G_END_DECLS
 154
 155 #endif /* GST_VAAPI_CONTEXT_H */