1 /* GStreamer
2  * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3  *                    2000 Wim Taymans <wtay@chello.be>
4  * Copyright (C) 2013      Sebastian Dröge <slomo@circular-chaos.org>
5  *
6  * gstaudiointerleave.h: Header for audiointerleave element
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Library General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Library General Public License for more details.
17  *
18  * You should have received a copy of the GNU Library General Public
19  * License along with this library; if not, write to the
20  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
21  * Boston, MA 02110-1301, USA.
22  */
23 
24 #ifndef __GST_AUDIO_INTERLEAVE_H__
25 #define __GST_AUDIO_INTERLEAVE_H__
26 
27 #include <gst/gst.h>
28 #include <gst/audio/audio.h>
29 
30 #include <gst/audio/gstaudioaggregator.h>
31 
32 G_BEGIN_DECLS
33 
34 #define GST_TYPE_AUDIO_INTERLEAVE            (gst_audio_interleave_get_type())
35 #define GST_AUDIO_INTERLEAVE(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_INTERLEAVE,GstAudioInterleave))
36 #define GST_IS_AUDIO_INTERLEAVE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_INTERLEAVE))
37 #define GST_AUDIO_INTERLEAVE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_INTERLEAVE,GstAudioInterleaveClass))
38 #define GST_IS_AUDIO_INTERLEAVE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_INTERLEAVE))
39 #define GST_AUDIO_INTERLEAVE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_INTERLEAVE,GstAudioInterleaveClass))
40 
41 typedef struct _GstAudioInterleave             GstAudioInterleave;
42 typedef struct _GstAudioInterleaveClass        GstAudioInterleaveClass;
43 
44 typedef struct _GstAudioInterleavePad GstAudioInterleavePad;
45 typedef struct _GstAudioInterleavePadClass GstAudioInterleavePadClass;
46 
47 typedef void (*GstInterleaveFunc) (gpointer out, gpointer in, guint stride,
48     guint nframes);
49 
50 /**
51  * GstAudioInterleave:
52  *
53  * The GstAudioInterleave object structure.
54  */
55 struct _GstAudioInterleave {
56   GstAudioAggregator parent;
57 
58   gint padcounter;
59   guint channels; /* object lock */
60 
61   GstCaps *sinkcaps;
62 
63   GValueArray *channel_positions;
64   GValueArray *input_channel_positions;
65   gboolean channel_positions_from_input;
66 
67   gint default_channels_ordering_map[64];
68 
69   GstInterleaveFunc func;
70 };
71 
72 struct _GstAudioInterleaveClass {
73   GstAudioAggregatorClass parent_class;
74 };
75 
76 GType    gst_audio_interleave_get_type (void);
77 
78 #define GST_TYPE_AUDIO_INTERLEAVE_PAD            (gst_audio_interleave_pad_get_type())
79 #define GST_AUDIO_INTERLEAVE_PAD(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_INTERLEAVE_PAD,GstAudioInterleavePad))
80 #define GST_IS_AUDIO_INTERLEAVE_PAD(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_INTERLEAVE_PAD))
81 #define GST_AUDIO_INTERLEAVE_PAD_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_INTERLEAVE_PAD,GstAudioInterleavePadClass))
82 #define GST_IS_AUDIO_INTERLEAVE_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_INTERLEAVE_PAD))
83 #define GST_AUDIO_INTERLEAVE_PAD_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_INTERLEAVE_PAD,GstAudioInterleavePadClass))
84 
85 struct _GstAudioInterleavePad {
86   GstAudioAggregatorPad parent;
87 
88   guint channel;
89 };
90 
91 struct _GstAudioInterleavePadClass {
92   GstAudioAggregatorPadClass parent_class;
93 };
94 
95 GType gst_audio_interleave_pad_get_type (void);
96 
97 G_END_DECLS
98 
99 
100 #endif /* __GST_AUDIO_INTERLEAVE_H__ */
101