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
|
/* This file is part of the KDE project.
Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
This library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2.1 or 3 of the License.
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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <e32debug.h>
#include <QCoreApplication>
#include "audiooutput.h"
#include "defs.h"
#include "mediaobject.h"
#include "utils.h"
QT_BEGIN_NAMESPACE
using namespace Phonon;
using namespace Phonon::MMF;
/*! \class MMF::AudioOutput
\internal
*/
//-----------------------------------------------------------------------------
// Constructor / destructor
//-----------------------------------------------------------------------------
MMF::AudioOutput::AudioOutput(Backend *, QObject *parent) : MediaNode(parent)
, m_volume(InitialVolume)
{
}
//-----------------------------------------------------------------------------
// Public API
//-----------------------------------------------------------------------------
qreal MMF::AudioOutput::volume() const
{
return m_volume;
}
void MMF::AudioOutput::setVolume(qreal volume)
{
TRACE_CONTEXT(AudioOutput::setVolume, EAudioApi);
TRACE_ENTRY("volume %f", volume);
if (volume != m_volume) {
m_volume = volume;
TRACE("emit volumeChanged(%f)", volume)
emit volumeChanged(volume);
}
TRACE_EXIT_0();
}
int MMF::AudioOutput::outputDevice() const
{
return AudioOutputDeviceID;
}
bool MMF::AudioOutput::setOutputDevice(int index)
{
Q_ASSERT_X(index == AudioOutputDeviceID, Q_FUNC_INFO,
"We only support one output device, with id 0");
return true;
}
bool MMF::AudioOutput::activateOnMediaObject(MediaObject *mo)
{
// Ensure that the MediaObject has the correct initial volume
mo->volumeChanged(m_volume);
// Connect MediaObject to receive future volume changes
connect(this, SIGNAL(volumeChanged(qreal)), mo, SLOT(volumeChanged(qreal)));
return true;
}
QHash<QByteArray, QVariant> MMF::AudioOutput::audioOutputDescription(int index)
{
QHash<QByteArray, QVariant> retval;
if (index == AudioOutputDeviceID) {
retval.insert("name", QCoreApplication::translate("Phonon::MMF", "Audio Output"));
retval.insert("description", QCoreApplication::translate("Phonon::MMF", "The audio output device"));
retval.insert("available", true);
}
return retval;
}
QT_END_NAMESPACE
|
