SphinxBase 5prealpha
ad_base.c
1/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
2/* ====================================================================
3 * Copyright (c) 1999-2001 Carnegie Mellon University. All rights
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18 * This work was supported in part by funding from the Defense Advanced
19 * Research Projects Agency and the National Science Foundation of the
20 * United States of America, and the CMU Sphinx Speech Consortium.
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37
38/*
39 * ad.c -- Wraps a "sphinx-II standard" audio interface around the basic audio
40 * utilities.
41 *
42 * HISTORY
43 *
44 * 11-Jun-96 M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon University.
45 * Modified to conform to new A/D API.
46 *
47 * 12-May-96 M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon University.
48 * Dummy template created.
49 */
50
51#include <stdio.h>
52#include <string.h>
53#include <config.h>
54
55#include "prim_type.h"
56#include "ad.h"
57
58struct ad_rec_s {
59 int32 sps;
60 int32 bps;
61};
62
64ad_open_dev(const char *dev, int32 samples_per_sec)
65{
66 fprintf(stderr, "A/D library not implemented\n");
67 return NULL;
68}
69
70
72ad_open_sps(int32 samples_per_sec)
73{
74 fprintf(stderr, "A/D library not implemented\n");
75 return NULL;
76}
77
79ad_open(void)
80{
81 return ad_open_sps(DEFAULT_SAMPLES_PER_SEC);
82}
83
84
85int32
86ad_start_rec(ad_rec_t * r)
87{
88 return -1;
89}
90
91
92int32
93ad_stop_rec(ad_rec_t * r)
94{
95 return -1;
96}
97
98
99int32
100ad_read(ad_rec_t * r, int16 * buf, int32 max)
101{
102 return -1;
103}
104
105
106int32
107ad_close(ad_rec_t * r)
108{
109 return 0;
110}
generic live audio interface for recording and playback
SPHINXBASE_EXPORT ad_rec_t * ad_open_dev(const char *dev, int32 samples_per_sec)
Open a specific audio device for recording.
Definition ad_alsa.c:187
SPHINXBASE_EXPORT ad_rec_t * ad_open(void)
Open the default audio device.
Definition ad_alsa.c:228
SPHINXBASE_EXPORT ad_rec_t * ad_open_sps(int32 samples_per_sec)
Open the default audio device with a given sampling rate.
Definition ad_alsa.c:222
Basic type definitions used in Sphinx.
Audio recording structure.
Definition ad_alsa.c:90
int32 sps
Samples/sec.
Definition ad_alsa.c:93
int32 bps
Bytes/sample.
Definition ad_alsa.c:94
Audio recording structure.