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
|
/* GStreamer OSS Mixer implementation
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* gstossmixer.c: mixer interface implementation for OSS
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; 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 <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#ifdef HAVE_OSS_INCLUDE_IN_SYS
# include <sys/soundcard.h>
#else
# ifdef HAVE_OSS_INCLUDE_IN_ROOT
# include <soundcard.h>
# else
# ifdef HAVE_OSS_INCLUDE_IN_MACHINE
# include <machine/soundcard.h>
# else
# error "What to include?"
# endif /* HAVE_OSS_INCLUDE_IN_MACHINE */
# endif /* HAVE_OSS_INCLUDE_IN_ROOT */
#endif /* HAVE_OSS_INCLUDE_IN_SYS */
#include <gst/gst-i18n-plugin.h>
#include "gstossmixertrack.h"
GST_DEBUG_CATEGORY_EXTERN (oss_debug);
#define GST_CAT_DEFAULT oss_debug
#define MASK_BIT_IS_SET(mask, bit) \
(mask & (1 << bit))
G_DEFINE_TYPE (GstOssMixerTrack, gst_ossmixer_track, GST_TYPE_MIXER_TRACK);
static void
gst_ossmixer_track_class_init (GstOssMixerTrackClass * klass)
{
/* nop */
}
static void
gst_ossmixer_track_init (GstOssMixerTrack * track)
{
track->lvol = track->rvol = 0;
track->track_num = 0;
}
static const gchar **labels = NULL;
/* three functions: firstly, OSS has the nasty habit of inserting
* spaces in the labels, we want to get rid of them. Secondly,
* i18n is impossible with OSS' way of providing us with mixer
* labels, so we make a 'given' list of i18n'ed labels. Thirdly, I
* personally don't like the "1337" names that OSS gives to their
* labels ("Vol", "Mic", "Rec"), I'd rather see full names. */
static void
fill_labels (void)
{
gint i, pos;
gchar *origs[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_LABELS;
const struct
{
const gchar *given;
const gchar *wanted;
}
cases[] = {
/* Note: this list is simply ripped from soundcard.h. For
* some people, some values might be missing (3D surround,
* etc.) - feel free to add them. That's the reason why
* I'm doing this in such a horribly complicated way. */
{
"Vol ", _("Volume")}, {
"Bass ", _("Bass")}, {
"Trebl", _("Treble")}, {
"Synth", _("Synth")}, {
"Pcm ", _("PCM")}, {
"Spkr ", _("Speaker")}, {
"Line ", _("Line-in")}, {
"Mic ", _("Microphone")}, {
"CD ", _("CD")}, {
"Mix ", _("Mixer")}, {
"Pcm2 ", _("PCM-2")}, {
"Rec ", _("Record")}, {
"IGain", _("In-gain")}, {
"OGain", _("Out-gain")}, {
"Line1", _("Line-1")}, {
"Line2", _("Line-2")}, {
"Line3", _("Line-3")}, {
"Digital1", _("Digital-1")}, {
"Digital2", _("Digital-2")}, {
"Digital3", _("Digital-3")}, {
"PhoneIn", _("Phone-in")}, {
"PhoneOut", _("Phone-out")}, {
"Video", _("Video")}, {
"Radio", _("Radio")}, {
"Monitor", _("Monitor")}, {
NULL, NULL}
};
labels = g_malloc (sizeof (gchar *) * SOUND_MIXER_NRDEVICES);
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
for (pos = 0; cases[pos].given != NULL; pos++) {
if (!strcmp (cases[pos].given, origs[i])) {
labels[i] = g_strdup (cases[pos].wanted);
break;
}
}
if (cases[pos].given == NULL)
labels[i] = g_strdup (origs[i]);
}
}
GstMixerTrack *
gst_ossmixer_track_new (gint mixer_fd,
gint track_num, gint max_chans, gint flags)
{
GstOssMixerTrack *osstrack;
GstMixerTrack *track;
gint volume;
if (!labels)
fill_labels ();
osstrack = g_object_new (GST_TYPE_OSSMIXER_TRACK, NULL);
track = GST_MIXER_TRACK (osstrack);
track->label = g_strdup (labels[track_num]);
track->num_channels = max_chans;
track->flags = flags;
track->min_volume = 0;
track->max_volume = 100;
osstrack->track_num = track_num;
/* volume */
if (ioctl (mixer_fd, MIXER_READ (osstrack->track_num), &volume) < 0) {
g_warning ("Error getting device (%d) volume: %s",
osstrack->track_num, strerror (errno));
volume = 0;
}
osstrack->lvol = (volume & 0xff);
if (track->num_channels == 2) {
osstrack->rvol = ((volume >> 8) & 0xff);
}
return track;
}
|
