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1 /* GStreamer AC3 parser
2  * Copyright (C) 2009 Tim-Philipp Müller <tim centricular net>
3  * Copyright (C) 2009 Mark Nauwelaerts <mnauw users sf net>
4  * Copyright (C) 2009 Nokia Corporation. All rights reserved.
5  *   Contact: Stefan Kost <stefan.kost@nokia.com>
6  *
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.
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  * Library General Public License for more details.
16  *
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., 51 Franklin St, Fifth Floor,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 #ifndef __GST_AC3_PARSE_H__
24 #define __GST_AC3_PARSE_H__
25 
26 #include <gst/gst.h>
27 #include <gst/base/gstbaseparse.h>
28 
29 G_BEGIN_DECLS
30 
31 #define GST_TYPE_AC3_PARSE \
32   (gst_ac3_parse_get_type())
33 #define GST_AC3_PARSE(obj) \
34   (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_AC3_PARSE, GstAc3Parse))
35 #define GST_AC3_PARSE_CLASS(klass) \
36   (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AC3_PARSE, GstAc3ParseClass))
37 #define GST_IS_AC3_PARSE(obj) \
38   (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_AC3_PARSE))
39 #define GST_IS_AC3_PARSE_CLASS(klass) \
40   (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AC3_PARSE))
41 
42 typedef struct _GstAc3Parse GstAc3Parse;
43 typedef struct _GstAc3ParseClass GstAc3ParseClass;
44 
45 enum {
46   GST_AC3_PARSE_ALIGN_NONE,
47   GST_AC3_PARSE_ALIGN_FRAME,
48   GST_AC3_PARSE_ALIGN_IEC61937,
49 };
50 
51 /**
52  * GstAc3Parse:
53  *
54  * The opaque GstAc3Parse object
55  */
56 struct _GstAc3Parse {
57   GstBaseParse baseparse;
58 
59   /*< private >*/
60   gint                  sample_rate;
61   gint                  channels;
62   gint                  blocks;
63   gboolean              eac;
64   gboolean              sent_codec_tag;
65   gint                  align;
66   GstPadChainFunction   baseparse_chainfunc;
67 };
68 
69 /**
70  * GstAc3ParseClass:
71  * @parent_class: Element parent class.
72  *
73  * The opaque GstAc3ParseClass data structure.
74  */
75 struct _GstAc3ParseClass {
76   GstBaseParseClass baseparse_class;
77 };
78 
79 GType gst_ac3_parse_get_type (void);
80 
81 G_END_DECLS
82 
83 #endif /* __GST_AC3_PARSE_H__ */
84