plugins/elements/gstbufferstore.h

   1 /* GStreamer
   2  * Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
   3  *
   4  * gsttypefind.h: keep an easily accessible list of all buffers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 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  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public
  17  * License along with this library; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22
  23 #ifndef __GST_BUFFER_STORE_H__
  24 #define __GST_BUFFER_STORE_H__
  25
  26 #include <gst/gstbuffer.h>
  27 #include <gst/gstinfo.h>
  28 #include <gst/gstmarshal.h>
  29
  30 G_BEGIN_DECLS
  31
  32 #define GST_TYPE_BUFFER_STORE           (gst_buffer_store_get_type ())
  33 #define GST_BUFFER_STORE(obj)           (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_BUFFER_STORE, GstBufferStore))
  34 #define GST_IS_BUFFER_STORE(obj)                (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_BUFFER_STORE))
  35 #define GST_BUFFER_STORE_CLASS(klass)   (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_BUFFER_STORE, GstBufferStoreClass))
  36 #define GST_IS_BUFFER_STORE_CLASS(klass)        (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_BUFFER_STORE))
  37 #define GST_BUFFER_STORE_GET_CLASS(obj)         (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_BUFFER_STORE, GstBufferStoreClass))
  38
  39 typedef struct _GstBufferStore          GstBufferStore;
  40 typedef struct _GstBufferStoreClass     GstBufferStoreClass;
  41
  42 struct _GstBufferStore {
  43   GObject               object;
  44
  45   GList *               buffers;
  46 };
  47
  48 struct _GstBufferStoreClass {
  49   GObjectClass          parent_class;
  50
  51   /* signals */
  52   void                  (* cleared)                     (GstBufferStore *       store);
  53   gboolean              (* buffer_added)                (GstBufferStore *       store,
  54                                                          GstBuffer *            buffer);
  55 };
  56
  57 GType                   gst_buffer_store_get_type       (void);
  58
  59 GstBufferStore *        gst_buffer_store_new            (void);
  60 void                    gst_buffer_store_clear          (GstBufferStore *       store);
  61
  62 gboolean                gst_buffer_store_add_buffer     (GstBufferStore *       store,
  63                                                          GstBuffer *            buffer);
  64
  65 GstBuffer *             gst_buffer_store_get_buffer     (GstBufferStore *       store,
  66                                                          guint64                offset,
  67                                                          guint                  size);
  68 guint                   gst_buffer_store_get_size       (GstBufferStore *       store,
  69                                                          guint64                offset);
  70
  71 G_END_DECLS
  72
  73 #endif /* __GST_BUFFER_STORE_H__ */