1 /* GStreamer SBC audio parser
2  * Copyright (C) 2012 Collabora Ltd. <tim.muller@collabora.co.uk>
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Library General Public
6  * License as published by the Free Software Foundation; either
7  * version 2 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Library General Public License for more details.
13  *
14  * You should have received a copy of the GNU Library General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17  * Boston, MA 02110-1301, USA.
18  */
19 
20 #ifndef __GST_SBC_PARSE_H_INCLUDED__
21 #define __GST_SBC_PARSE_H_INCLUDED__
22 
23 
24 #include <gst/gst.h>
25 #include <gst/base/gstbaseparse.h>
26 
27 G_BEGIN_DECLS
28 
29 #define GST_TYPE_SBC_PARSE            (gst_sbc_parse_get_type())
30 #define GST_SBC_PARSE(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SBC_PARSE,GstSbcParse))
31 #define GST_SBC_PARSE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SBC_PARSE,GstSbcParseClass))
32 #define GST_SBC_PARSE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_SBC_PARSE,GstSbcParseClass))
33 #define GST_IS_SBC_PARSE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SBC_PARSE))
34 #define GST_IS_SBC_PARSE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SBC_PARSE))
35 #define GST_SBC_PARSE_CAST(obj)       ((GstSbcParse *)(obj))
36 
37 typedef enum {
38   GST_SBC_CHANNEL_MODE_INVALID = -1,
39   GST_SBC_CHANNEL_MODE_MONO = 0,
40   GST_SBC_CHANNEL_MODE_DUAL = 1,
41   GST_SBC_CHANNEL_MODE_STEREO = 2,
42   GST_SBC_CHANNEL_MODE_JOINT_STEREO = 3
43 } GstSbcChannelMode;
44 
45 typedef enum {
46   GST_SBC_ALLOCATION_METHOD_INVALID = -1,
47   GST_SBC_ALLOCATION_METHOD_LOUDNESS = 0,
48   GST_SBC_ALLOCATION_METHOD_SNR = 1
49 } GstSbcAllocationMethod;
50 
51 typedef struct _GstSbcParse GstSbcParse;
52 typedef struct _GstSbcParseClass GstSbcParseClass;
53 
54 struct _GstSbcParse {
55   GstBaseParse baseparse;
56 
57   /* current output format */
58   GstSbcAllocationMethod  alloc_method;
59   GstSbcChannelMode       ch_mode;
60   gint                    rate;
61   gint                    n_blocks;
62   gint                    n_subbands;
63   gint                    bitpool;
64 
65   gboolean                sent_codec_tag;
66 };
67 
68 struct _GstSbcParseClass {
69   GstBaseParseClass baseparse_class;
70 };
71 
72 GType gst_sbc_parse_get_type (void);
73 
74 G_END_DECLS
75 
76 #endif /* __GST_SBC_PARSE_H_INCLUDED__ */
77