SphinxBase  5prealpha
ad_base.c
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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 
58 struct ad_rec_s {
59  int32 sps;
60  int32 bps;
61 };
62 
63 ad_rec_t *
64 ad_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 
71 ad_rec_t *
72 ad_open_sps(int32 samples_per_sec)
73 {
74  fprintf(stderr, "A/D library not implemented\n");
75  return NULL;
76 }
77 
78 ad_rec_t *
79 ad_open(void)
80 {
81  return ad_open_sps(DEFAULT_SAMPLES_PER_SEC);
82 }
83 
84 
85 int32
86 ad_start_rec(ad_rec_t * r)
87 {
88  return -1;
89 }
90 
91 
92 int32
93 ad_stop_rec(ad_rec_t * r)
94 {
95  return -1;
96 }
97 
98 
99 int32
100 ad_read(ad_rec_t * r, int16 * buf, int32 max)
101 {
102  return -1;
103 }
104 
105 
106 int32
107 ad_close(ad_rec_t * r)
108 {
109  return 0;
110 }
Audio recording structure.
int32 bps
Bytes/sample.
Definition: ad_alsa.c:94
Basic type definitions used in Sphinx.
SPHINXBASE_EXPORT ad_rec_t * ad_open(void)
Open the default audio device.
Definition: ad_alsa.c:228
generic live audio interface for recording and playback
int32 sps
Samples/sec.
Definition: ad_alsa.c:93
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_sps(int32 samples_per_sec)
Open the default audio device with a given sampling rate.
Definition: ad_alsa.c:222
Audio recording structure.
Definition: ad_alsa.c:90