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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2025 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed 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. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#include "prologue.h"
#ifdef HAVE_HPUX_AUDIO
#include <Alib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#endif /* HAVE_HPUX_AUDIO */
#include "log.h"
#include "pcm.h"
#ifdef HAVE_HPUX_AUDIO
static Audio *audioServer = NULL;
struct PcmDeviceStruct {
ATransID transaction;
SStream stream;
int socket;
};
static void
logAudioError (int level, long status, const char *action) {
char message[132];
AGetErrorText(audioServer, status, message, sizeof(message)-1);
logMessage(level, "%s error %ld: %s", action, status, message);
}
static const AudioAttributes *
getAudioAttributes (PcmDevice *pcm) {
return &pcm->stream.audio_attr;
}
#endif /* HAVE_HPUX_AUDIO */
PcmDevice *
openPcmDevice (int errorLevel, const char *device) {
#ifdef HAVE_HPUX_AUDIO
PcmDevice *pcm;
if ((pcm = malloc(sizeof(*pcm)))) {
long status;
AudioAttrMask mask = 0;
AudioAttributes attributes;
SSPlayParams parameters;
if (!audioServer) {
char *server = "";
audioServer = AOpenAudio(server, &status);
if (status != AENoError) {
logAudioError(errorLevel, status, "AOpenAudio");
audioServer = NULL;
goto noServer;
}
logMessage(LOG_DEBUG, "connected to audio server: %s", AAudioString(audioServer));
ASetCloseDownMode(audioServer, AKeepTransactions, &status);
if (status != AENoError) {
logAudioError(errorLevel, status, "ASetCloseDownMode");
}
}
memset(&attributes, 0, sizeof(attributes));
parameters.gain_matrix = *ASimplePlayer(audioServer);
parameters.play_volume = AUnityGain;
parameters.priority = APriorityUrgent;
parameters.event_mask = 0;
pcm->transaction = APlaySStream(audioServer, mask, &attributes, ¶meters, &pcm->stream, &status);
if (status == AENoError) {
if ((pcm->socket = socket(AF_INET, SOCK_STREAM, 0)) != -1) {
if (connect(pcm->socket, (struct sockaddr *)&pcm->stream.tcp_sockaddr, sizeof(pcm->stream.tcp_sockaddr)) != -1) {
return pcm;
} else {
logSystemError("PCM socket connection");
}
close(pcm->socket);
} else {
logSystemError("PCM socket creation");
}
} else {
logAudioError(errorLevel, status, "APlaySStream");
}
noServer:
free(pcm);
} else {
logSystemError("PCM device allocation");
}
#endif /* HAVE_HPUX_AUDIO */
return NULL;
}
void
closePcmDevice (PcmDevice *pcm) {
close(pcm->socket);
free(pcm);
}
int
writePcmData (PcmDevice *pcm, const unsigned char *buffer, int count) {
return safe_write(pcm->socket, buffer, count) != -1;
}
int
getPcmBlockSize (PcmDevice *pcm) {
int size = 0X100;
#ifdef HAVE_HPUX_AUDIO
size = MIN(size, pcm->stream.max_block_size);
#endif /* HAVE_HPUX_AUDIO */
return size;
}
int
getPcmSampleRate (PcmDevice *pcm) {
#ifdef HAVE_HPUX_AUDIO
return getAudioAttributes(pcm)->attr.sampled_attr.sampling_rate;
#else /* HAVE_HPUX_AUDIO */
return 8000;
#endif /* HAVE_HPUX_AUDIO */
}
int
setPcmSampleRate (PcmDevice *pcm, int rate) {
return getPcmSampleRate(pcm);
}
int
getPcmChannelCount (PcmDevice *pcm) {
#ifdef HAVE_HPUX_AUDIO
return getAudioAttributes(pcm)->attr.sampled_attr.channels;
#else /* HAVE_HPUX_AUDIO */
return 1;
#endif /* HAVE_HPUX_AUDIO */
}
int
setPcmChannelCount (PcmDevice *pcm, int channels) {
return getPcmChannelCount(pcm);
}
PcmAmplitudeFormat
getPcmAmplitudeFormat (PcmDevice *pcm) {
#ifdef HAVE_HPUX_AUDIO
switch (getAudioAttributes(pcm)->attr.sampled_attr.data_format) {
default:
break;
case ADFLin8:
return PCM_FMT_S8;
case ADFLin8Offset:
return PCM_FMT_U8;
case ADFLin16:
return PCM_FMT_S16B;
case ADFMuLaw:
return PCM_FMT_ULAW;
}
#endif /* HAVE_HPUX_AUDIO */
return PCM_FMT_UNKNOWN;
}
PcmAmplitudeFormat
setPcmAmplitudeFormat (PcmDevice *pcm, PcmAmplitudeFormat format) {
return getPcmAmplitudeFormat(pcm);
}
void
pushPcmOutput (PcmDevice *pcm) {
}
void
awaitPcmOutput (PcmDevice *pcm) {
}
void
cancelPcmOutput (PcmDevice *pcm) {
}
|
