summaryrefslogtreecommitdiff
path: root/ext/speexdsp/speexdsp.h
blob: 40223b129df99d607b9bc4bbc42469c18caf2ffd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
/*
 * Farsight Voice+Video library
 *
 *  Copyright 2008 Collabora Ltd
 *  Copyright 2008 Nokia Corporation
 *   @author: Olivier Crete <olivier.crete@collabora.co.uk>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 */



#ifndef __GST_SPEEX_DSP_H__
#define __GST_SPEEX_DSP_H__

#include <gst/gst.h>
#include <gst/base/gstadapter.h>

#include "speexechoprobe.h"

#include <speex/speex_echo.h>
#include <speex/speex_preprocess.h>

G_BEGIN_DECLS

GST_DEBUG_CATEGORY_EXTERN (speex_dsp_debug);


#define GST_TYPE_SPEEX_DSP            (gst_speex_dsp_get_type())
#define GST_SPEEX_DSP(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SPEEX_DSP,GstSpeexDSP))
#define GST_IS_SPEEX_DSP(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SPEEX_DSP))
#define GST_SPEEX_DSP_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_SPEEX_DSP,GstSpeexDSPClass))
#define GST_IS_SPEEX_DSP_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_SPEEX_DSP))
#define GST_SPEEX_DSP_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_SPEEX_DSP,GstSpeexDSPClass))

typedef struct _GstSpeexDSP             GstSpeexDSP;
typedef struct _GstSpeexDSPClass        GstSpeexDSPClass;

/**
 * GstSpeexDSP:
 *
 * The adder object structure.
 */
struct _GstSpeexDSP {
  GstElement    element;

  GstPad        *rec_srcpad;
  GstPad        *rec_sinkpad;

  /* Protected by the stream lock */
  guint         frame_size_ms; /* frame size in ms */
  guint         filter_length_ms; /* filter length in ms */
  /* Protected by the object lock */
  gint          rate;
  gint          channels;

  /* Protected by the stream lock */
  GstSegment    rec_segment;

  GstAdapter    *rec_adapter;

  GstClockTime  rec_time;
  guint64       rec_offset;

  /* Protected by the object lock */
  SpeexPreprocessState *preprocstate;
  /* Protected by the stream lock */
  SpeexEchoState *echostate;

  /* Protected by the object lock */
  GstSpeexEchoProbe *probe;

  /* Protected by the object lock */
  gboolean agc;
  gint agc_increment;
  gint agc_decrement;
  gfloat agc_level;
  gint agc_max_gain;
  gboolean denoise;
  gint echo_suppress;
  gint echo_suppress_active;
  gint noise_suppress;
};

struct _GstSpeexDSPClass {
  GstElementClass parent_class;
};

GType    gst_speex_dsp_get_type (void);

G_END_DECLS


#endif /* __GST_SPEEX_DSP_H__ */