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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "SolarisOutputPlugin.hxx"
#include "OutputAPI.hxx"
#include "fd_util.h"
#include <glib.h>
#include <sys/stropts.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#ifdef __sun
#include <sys/audio.h>
#else
/* some fake declarations that allow build this plugin on systems
other than Solaris, just to see if it compiles */
#define AUDIO_GETINFO 0
#define AUDIO_SETINFO 0
#define AUDIO_ENCODING_LINEAR 0
struct audio_info {
struct {
unsigned sample_rate, channels, precision, encoding;
} play;
};
#endif
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "solaris_output"
struct SolarisOutput {
struct audio_output base;
/* configuration */
const char *device;
int fd;
bool Initialize(const config_param ¶m, GError **error_r) {
return ao_base_init(&base, &solaris_output_plugin, param,
error_r);
}
void Deinitialize() {
ao_base_finish(&base);
}
};
/**
* The quark used for GError.domain.
*/
static inline GQuark
solaris_output_quark(void)
{
return g_quark_from_static_string("solaris_output");
}
static bool
solaris_output_test_default_device(void)
{
struct stat st;
return stat("/dev/audio", &st) == 0 && S_ISCHR(st.st_mode) &&
access("/dev/audio", W_OK) == 0;
}
static struct audio_output *
solaris_output_init(const config_param ¶m, GError **error_r)
{
SolarisOutput *so = new SolarisOutput();
if (!so->Initialize(param, error_r)) {
delete so;
return nullptr;
}
so->device = param.GetBlockValue("device", "/dev/audio");
return &so->base;
}
static void
solaris_output_finish(struct audio_output *ao)
{
SolarisOutput *so = (SolarisOutput *)ao;
so->Deinitialize();
delete so;
}
static bool
solaris_output_open(struct audio_output *ao, AudioFormat &audio_format,
GError **error)
{
SolarisOutput *so = (SolarisOutput *)ao;
struct audio_info info;
int ret, flags;
/* support only 16 bit mono/stereo for now; nothing else has
been tested */
audio_format.format = SampleFormat::S16;
/* open the device in non-blocking mode */
so->fd = open_cloexec(so->device, O_WRONLY|O_NONBLOCK, 0);
if (so->fd < 0) {
g_set_error(error, solaris_output_quark(), errno,
"Failed to open %s: %s",
so->device, g_strerror(errno));
return false;
}
/* restore blocking mode */
flags = fcntl(so->fd, F_GETFL);
if (flags > 0 && (flags & O_NONBLOCK) != 0)
fcntl(so->fd, F_SETFL, flags & ~O_NONBLOCK);
/* configure the audio device */
ret = ioctl(so->fd, AUDIO_GETINFO, &info);
if (ret < 0) {
g_set_error(error, solaris_output_quark(), errno,
"AUDIO_GETINFO failed: %s", g_strerror(errno));
close(so->fd);
return false;
}
info.play.sample_rate = audio_format.sample_rate;
info.play.channels = audio_format.channels;
info.play.precision = 16;
info.play.encoding = AUDIO_ENCODING_LINEAR;
ret = ioctl(so->fd, AUDIO_SETINFO, &info);
if (ret < 0) {
g_set_error(error, solaris_output_quark(), errno,
"AUDIO_SETINFO failed: %s", g_strerror(errno));
close(so->fd);
return false;
}
return true;
}
static void
solaris_output_close(struct audio_output *ao)
{
SolarisOutput *so = (SolarisOutput *)ao;
close(so->fd);
}
static size_t
solaris_output_play(struct audio_output *ao, const void *chunk, size_t size,
GError **error)
{
SolarisOutput *so = (SolarisOutput *)ao;
ssize_t nbytes;
nbytes = write(so->fd, chunk, size);
if (nbytes <= 0) {
g_set_error(error, solaris_output_quark(), errno,
"Write failed: %s", g_strerror(errno));
return 0;
}
return nbytes;
}
static void
solaris_output_cancel(struct audio_output *ao)
{
SolarisOutput *so = (SolarisOutput *)ao;
ioctl(so->fd, I_FLUSH);
}
const struct audio_output_plugin solaris_output_plugin = {
"solaris",
solaris_output_test_default_device,
solaris_output_init,
solaris_output_finish,
nullptr,
nullptr,
solaris_output_open,
solaris_output_close,
nullptr,
nullptr,
solaris_output_play,
nullptr,
solaris_output_cancel,
nullptr,
nullptr,
};
|
