2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
5 * gstadder.h: Header for GstAdder element
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
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 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
23 #ifndef __GST_ADDER_H__
24 #define __GST_ADDER_H__
27 #include <gst/base/gstcollectpads.h>
31 extern GstElementDetails gst_adder_details;
33 #define GST_TYPE_ADDER \
34 (gst_adder_get_type())
35 #define GST_ADDER(obj) \
36 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ADDER,GstAdder))
37 #define GST_ADDER_CLASS(klass) \
38 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ADDER,GstAdderClass))
39 #define GST_IS_ADDER(obj) \
40 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ADDER))
41 #define GST_IS_ADDER_CLASS(obj) \
42 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ADDER))
44 typedef struct _GstAdder GstAdder;
45 typedef struct _GstAdderClass GstAdderClass;
46 typedef struct _GstAdderInputChannel GstAdderInputChannel;
49 GST_ADDER_FORMAT_UNSET,
51 GST_ADDER_FORMAT_FLOAT
54 typedef void (*GstAdderFunction) (gpointer out, gpointer in, guint size);
60 GstCollectPads *collect;
63 /* the next are valid for both int and float */
64 GstAdderFormat format;
70 /* the next are valid only for format == GST_ADDER_FORMAT_INT */
74 /* function to add samples */
75 GstAdderFunction func;
77 /* counters to keep track of timestamps */
82 struct _GstAdderClass {
83 GstElementClass parent_class;
86 GType gst_adder_get_type (void);
87 gboolean gst_adder_factory_init (GstElementFactory *factory);
92 #endif /* __GST_ADDER_H__ */