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
|
#include <lib/dvb/volume.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <config.h>
#if HAVE_DVB_API_VERSION < 3
#define VIDEO_DEV "/dev/dvb/card0/video0"
#define AUDIO_DEV "/dev/dvb/card0/audio0"
#include <ost/audio.h>
#include <ost/video.h>
#else
#define VIDEO_DEV "/dev/dvb/adapter0/video0"
#define AUDIO_DEV "/dev/dvb/adapter0/audio0"
#include <linux/dvb/audio.h>
#include <linux/dvb/video.h>
#endif
eDVBVolumecontrol* eDVBVolumecontrol::instance = NULL;
eDVBVolumecontrol* eDVBVolumecontrol::getInstance()
{
if (instance == NULL)
instance = new eDVBVolumecontrol;
return instance;
}
eDVBVolumecontrol::eDVBVolumecontrol()
{
volumeUnMute();
setVolume(100, 100);
}
int eDVBVolumecontrol::openMixer()
{
return open( AUDIO_DEV, O_RDWR );
}
void eDVBVolumecontrol::closeMixer(int fd)
{
close(fd);
}
void eDVBVolumecontrol::volumeUp(int left, int right)
{
printf("[volume.cpp] Volume up\n");
setVolume(leftVol + left, rightVol + right);
}
void eDVBVolumecontrol::volumeDown(int left, int right)
{
printf("[volume.cpp] Volume down\n");
setVolume(leftVol - left, rightVol - right);
}
int eDVBVolumecontrol::checkVolume(int vol)
{
if (vol < 0)
vol = 0;
else if (vol > 100)
vol = 100;
return vol;
}
void eDVBVolumecontrol::setVolume(int left, int right)
{
leftVol = checkVolume(left);
rightVol = checkVolume(right);
left = 63 - leftVol * 63 / 100;
right = 63 - rightVol * 63 / 100;
#if HAVE_DVB_API_VERSION < 3
audioMixer_t mixer;
#else
audio_mixer_t mixer;
#endif
#ifdef HAVE_DVB_API_VERSION
mixer.volume_left = (left * left) / 64;
mixer.volume_right = (right * right) / 64;
#endif
int fd = openMixer();
#ifdef HAVE_DVB_API_VERSION
ioctl(fd, AUDIO_SET_MIXER, &mixer);
#endif
closeMixer(fd);
printf("Setvolume: %d %d\n", leftVol, rightVol);
printf("Setvolume: %d %d\n", left, right);
}
int eDVBVolumecontrol::getVolume()
{
if (isMuted())
return 0;
return leftVol;
}
bool eDVBVolumecontrol::isMuted()
{
return muted;
}
void eDVBVolumecontrol::volumeMute()
{
int fd = openMixer();
#ifdef HAVE_DVB_API_VERSION
ioctl(fd, AUDIO_SET_MUTE, true);
#endif
closeMixer(fd);
muted = true;
}
void eDVBVolumecontrol::volumeUnMute()
{
int fd = openMixer();
#ifdef HAVE_DVB_API_VERSION
ioctl(fd, AUDIO_SET_MUTE, false);
#endif
closeMixer(fd);
muted = false;
}
void eDVBVolumecontrol::volumeToggleMute()
{
printf("Mute\n");
if (isMuted())
volumeUnMute();
else
volumeMute();
}
|
