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
|
/***
This file is part of PulseAudio.
Copyright 2010 Arun Raghavan <arun.raghavan@collabora.co.uk>
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio 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
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pulse/sample.h>
#include <pulse/channelmap.h>
#include <pulsecore/core.h>
#include <pulsecore/macro.h>
#include <speex/speex_echo.h>
#include "adrian.h"
/* Common data structures */
typedef struct pa_echo_canceller_params pa_echo_canceller_params;
struct pa_echo_canceller_params {
union {
struct {
SpeexEchoState *state;
} speex;
struct {
uint32_t blocksize;
AEC *aec;
} adrian;
/* each canceller-specific structure goes here */
} priv;
};
typedef struct pa_echo_canceller pa_echo_canceller;
struct pa_echo_canceller {
pa_bool_t (*init) (pa_core *c,
pa_echo_canceller *ec,
pa_sample_spec *source_ss,
pa_channel_map *source_map,
pa_sample_spec *sink_ss,
pa_channel_map *sink_map,
uint32_t *blocksize,
const char *args);
void (*run) (pa_echo_canceller *ec, const uint8_t *rec, const uint8_t *play, uint8_t *out);
void (*done) (pa_echo_canceller *ec);
pa_echo_canceller_params params;
};
/* Speex canceller functions */
pa_bool_t pa_speex_ec_init(pa_core *c, pa_echo_canceller *ec,
pa_sample_spec *source_ss, pa_channel_map *source_map,
pa_sample_spec *sink_ss, pa_channel_map *sink_map,
uint32_t *blocksize, const char *args);
void pa_speex_ec_run(pa_echo_canceller *ec, const uint8_t *rec, const uint8_t *play, uint8_t *out);
void pa_speex_ec_done(pa_echo_canceller *ec);
/* Adrian Andre's echo canceller */
pa_bool_t pa_adrian_ec_init(pa_core *c, pa_echo_canceller *ec,
pa_sample_spec *source_ss, pa_channel_map *source_map,
pa_sample_spec *sink_ss, pa_channel_map *sink_map,
uint32_t *blocksize, const char *args);
void pa_adrian_ec_run(pa_echo_canceller *ec, const uint8_t *rec, const uint8_t *play, uint8_t *out);
void pa_adrian_ec_done(pa_echo_canceller *ec);
|