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
|
/*
* GStreamer
* Copyright (C) 2005,2008 Sun Microsystems, Inc.,
* Brian Cameron <brian.cameron@sun.com>
*
* gstsunaudiomixer.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>
#include <sys/audioio.h>
#include <gst/gst-i18n-plugin.h>
#include "gstsunaudiomixertrack.h"
#define MASK_BIT_IS_SET(mask, bit) \
(mask & (1 << bit))
G_DEFINE_TYPE (GstSunAudioMixerTrack, gst_sunaudiomixer_track,
GST_TYPE_MIXER_TRACK)
static void
gst_sunaudiomixer_track_class_init (GstSunAudioMixerTrackClass * klass)
{
/* nop */
}
static void
gst_sunaudiomixer_track_init (GstSunAudioMixerTrack * track)
{
track->gain = 0;
track->balance = AUDIO_MID_BALANCE;
track->track_num = 0;
}
GstMixerTrack *
gst_sunaudiomixer_track_new (GstSunAudioTrackType track_num,
gint max_chans, gint flags)
{
const gchar *labels[] = { N_("Volume"), N_("Gain"), N_("Monitor") };
GstSunAudioMixerTrack *sunaudiotrack;
GstMixerTrack *track;
GObjectClass *klass;
const gchar *untranslated_label;
if ((guint) track_num < G_N_ELEMENTS (labels))
untranslated_label = labels[track_num];
else
untranslated_label = NULL;
/* FIXME: remove this check once we depend on -base >= 0.10.12.1 */
klass = G_OBJECT_CLASS (g_type_class_ref (GST_TYPE_SUNAUDIO_MIXER_TRACK));
if (g_object_class_find_property (klass, "untranslated-label")) {
sunaudiotrack = g_object_new (GST_TYPE_SUNAUDIO_MIXER_TRACK,
"untranslated-label", untranslated_label, NULL);
} else {
sunaudiotrack = g_object_new (GST_TYPE_SUNAUDIO_MIXER_TRACK, NULL);
}
g_type_class_unref (klass);
track = GST_MIXER_TRACK (sunaudiotrack);
track->label = g_strdup (_(untranslated_label));
track->num_channels = max_chans;
track->flags = flags;
track->min_volume = 0;
track->max_volume = 255;
sunaudiotrack->track_num = track_num;
sunaudiotrack->gain = (0 & 0xff);
sunaudiotrack->balance = AUDIO_MID_BALANCE;
return track;
}
|
