gst-libs/gst/vaapi/gstvaapidecoder_dpb.h

   1 /*
   2  *  gstvaapidecoder_dpb.h - Decoded Picture Buffer
   3  *
   4  *  Copyright (C) 2012 Intel Corporation
   5  *
   6  *  This library is free software; you can redistribute it and/or
   7  *  modify it under the terms of the GNU Lesser General Public License
   8  *  as published by the Free Software Foundation; either version 2.1
   9  *  of the License, or (at your option) any later version.
  10  *
  11  *  This library 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 GNU
  14  *  Lesser General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU Lesser General Public
  17  *  License along with this library; if not, write to the Free
  18  *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  *  Boston, MA 02110-1301 USA
  20  */
  21
  22 #ifndef GST_VAAPI_DECODER_DPB_H
  23 #define GST_VAAPI_DECODER_DPB_H
  24
  25 #include <gst/vaapi/gstvaapidecoder_objects.h>
  26
  27 G_BEGIN_DECLS
  28
  29 typedef struct _GstVaapiDpb             GstVaapiDpb;
  30 typedef struct _GstVaapiDpbClass        GstVaapiDpbClass;
  31 typedef struct _GstVaapiDpb2            GstVaapiDpb2;
  32 typedef struct _GstVaapiDpb2Class       GstVaapiDpb2Class;
  33
  34 /* ------------------------------------------------------------------------- */
  35 /* --- Base Decoded Picture Buffer                                       --- */
  36 /* ------------------------------------------------------------------------- */
  37
  38 #define GST_VAAPI_TYPE_DPB \
  39     (gst_vaapi_dpb_get_type())
  40
  41 #define GST_VAAPI_DPB_CAST(obj) \
  42     ((GstVaapiDpb *)(obj))
  43
  44 #define GST_VAAPI_DPB(obj)                              \
  45     (G_TYPE_CHECK_INSTANCE_CAST((obj),                  \
  46                                 GST_VAAPI_TYPE_DPB,     \
  47                                 GstVaapiDpb))
  48
  49 #define GST_VAAPI_DPB_CLASS(klass)                      \
  50     (G_TYPE_CHECK_CLASS_CAST((klass),                   \
  51                              GST_VAAPI_TYPE_DPB,        \
  52                              GstVaapiDpbClass))
  53
  54 #define GST_VAAPI_IS_DPB(obj) \
  55     (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_DPB))
  56
  57 #define GST_VAAPI_IS_DPB_CLASS(klass) \
  58     (G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_DPB))
  59
  60 #define GST_VAAPI_DPB_GET_CLASS(obj)                    \
  61     (G_TYPE_INSTANCE_GET_CLASS((obj),                   \
  62                                GST_VAAPI_TYPE_DPB,      \
  63                                GstVaapiDpbClass))
  64
  65 /**
  66  * GstVaapiDpb:
  67  *
  68  * A decoded picture buffer (DPB) object.
  69  */
  70 struct _GstVaapiDpb {
  71     /*< private >*/
  72     GstMiniObject       parent_instance;
  73
  74     /*< protected >*/
  75     GstVaapiPicture   **pictures;
  76     guint               num_pictures;
  77     guint               max_pictures;
  78 };
  79
  80 /**
  81  * GstVaapiDpbClass:
  82  *
  83  * The #GstVaapiDpb base class.
  84  */
  85 struct _GstVaapiDpbClass {
  86     /*< private >*/
  87     GstMiniObjectClass  parent_class;
  88
  89     /*< protected >*/
  90     void              (*flush)  (GstVaapiDpb *dpb);
  91     gboolean          (*add)    (GstVaapiDpb *dpb, GstVaapiPicture *picture);
  92 };
  93
  94 G_GNUC_INTERNAL
  95 GType
  96 gst_vaapi_dpb_get_type(void) G_GNUC_CONST;
  97
  98 G_GNUC_INTERNAL
  99 void
 100 gst_vaapi_dpb_flush(GstVaapiDpb *dpb);
 101
 102 G_GNUC_INTERNAL
 103 gboolean
 104 gst_vaapi_dpb_add(GstVaapiDpb *dpb, GstVaapiPicture *picture);
 105
 106 G_GNUC_INTERNAL
 107 guint
 108 gst_vaapi_dpb_size(GstVaapiDpb *dpb);
 109
 110 static inline gpointer
 111 gst_vaapi_dpb_ref(gpointer ptr)
 112 {
 113     return gst_mini_object_ref(GST_MINI_OBJECT(ptr));
 114 }
 115
 116 static inline void
 117 gst_vaapi_dpb_unref(gpointer ptr)
 118 {
 119     gst_mini_object_unref(GST_MINI_OBJECT(ptr));
 120 }
 121
 122 /* ------------------------------------------------------------------------- */
 123 /* --- Decoded Picture Buffer (optimized for 2 reference pictures)       --- */
 124 /* ------------------------------------------------------------------------- */
 125
 126 #define GST_VAAPI_TYPE_DPB2 \
 127     (gst_vaapi_dpb2_get_type())
 128
 129 #define GST_VAAPI_DPB2_CAST(obj) \
 130     ((GstVaapiDpb2 *)(obj))
 131
 132 #define GST_VAAPI_DPB2(obj)                             \
 133     (G_TYPE_CHECK_INSTANCE_CAST((obj),                  \
 134                                 GST_VAAPI_TYPE_DPB2,    \
 135                                 GstVaapiDpb2))
 136
 137 #define GST_VAAPI_DPB2_CLASS(klass)                     \
 138     (G_TYPE_CHECK_CLASS_CAST((klass),                   \
 139                              GST_VAAPI_TYPE_DPB2,       \
 140                              GstVaapiDpb2Class))
 141
 142 #define GST_VAAPI_IS_DPB2(obj) \
 143     (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_DPB2))
 144
 145 #define GST_VAAPI_IS_DPB2_CLASS(klass) \
 146     (G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_DPB2))
 147
 148 #define GST_VAAPI_DPB2_GET_CLASS(obj)                   \
 149     (G_TYPE_INSTANCE_GET_CLASS((obj),                   \
 150                                GST_VAAPI_TYPE_DPB2,     \
 151                                GstVaapiDpb2Class))
 152
 153 /**
 154  * GstVaapiDpb2:
 155  *
 156  * A decoded picture buffer (DPB2) object.
 157  */
 158 struct _GstVaapiDpb2 {
 159     /*< private >*/
 160     GstVaapiDpb         parent_instance;
 161 };
 162
 163 /**
 164  * GstVaapiDpb2Class:
 165  *
 166  * The #GstVaapiDpb2 base class.
 167  */
 168 struct _GstVaapiDpb2Class {
 169     /*< private >*/
 170     GstVaapiDpbClass    parent_class;
 171 };
 172
 173 G_GNUC_INTERNAL
 174 GType
 175 gst_vaapi_dpb2_get_type(void) G_GNUC_CONST;
 176
 177 G_GNUC_INTERNAL
 178 GstVaapiDpb *
 179 gst_vaapi_dpb2_new(void);
 180
 181 G_GNUC_INTERNAL
 182 void
 183 gst_vaapi_dpb2_get_references(
 184     GstVaapiDpb        *dpb,
 185     GstVaapiPicture    *picture,
 186     GstVaapiPicture   **prev_picture_ptr,
 187     GstVaapiPicture   **next_picture_ptr
 188 );
 189
 190 G_END_DECLS
 191
 192 #endif /* GST_VAAPI_DECODER_DPB */