1 | /* This file is part of the KDE project |
2 | Copyright (C) 2008 Matthias Kretz <kretz@kde.org> |
3 | |
4 | This library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) version 3, or any |
8 | later version accepted by the membership of KDE e.V. (or its |
9 | successor approved by the membership of KDE e.V.), Nokia Corporation |
10 | (or its successors, if any) and the KDE Free Qt Foundation, which shall |
11 | act as a proxy defined in Section 6 of version 3 of the license. |
12 | |
13 | This library is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | Lesser General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU Lesser General Public |
19 | License along with this library. If not, see <http://www.gnu.org/licenses/>. |
20 | |
21 | */ |
22 | |
23 | #include "audioformat.h" |
24 | #include "phonondefs_p.h" |
25 | |
26 | namespace Phonon |
27 | { |
28 | namespace Experimental |
29 | { |
30 | |
31 | class AudioFormatPrivate |
32 | { |
33 | P_DECLARE_PUBLIC(AudioFormat) |
34 | protected: |
35 | AudioFormat *q_ptr; |
36 | }; |
37 | |
38 | AudioFormat::AudioFormat(int sampleRate, int channelCount, Phonon::Experimental::BitRate bitRate, QSysInfo::Endian byteOrder) |
39 | { |
40 | s.m_sampleRate = sampleRate; |
41 | s.m_channelCount = channelCount; |
42 | s.m_bitRate = bitRate; |
43 | s.m_byteOrder = byteOrder; |
44 | } |
45 | |
46 | AudioFormat::~AudioFormat() |
47 | { |
48 | } |
49 | |
50 | int AudioFormat::sampleRate() const |
51 | { |
52 | return s.m_sampleRate; |
53 | } |
54 | |
55 | int AudioFormat::channelCount() const |
56 | { |
57 | return s.m_channelCount; |
58 | } |
59 | |
60 | Phonon::Experimental::BitRate AudioFormat::bitRate() const |
61 | { |
62 | return s.m_bitRate; |
63 | } |
64 | |
65 | QSysInfo::Endian AudioFormat::byteOrder() const |
66 | { |
67 | return s.m_byteOrder; |
68 | } |
69 | |
70 | AudioFormat::AudioFormat(const AudioFormat &f) |
71 | { |
72 | s.m_sampleRate = f.sampleRate(); |
73 | s.m_channelCount = f.channelCount(); |
74 | s.m_bitRate = f.bitRate(); |
75 | s.m_byteOrder = f.byteOrder(); |
76 | } |
77 | |
78 | AudioFormat &AudioFormat::operator=(const AudioFormat &f) |
79 | { |
80 | s.m_sampleRate = f.sampleRate(); |
81 | s.m_channelCount = f.channelCount(); |
82 | s.m_bitRate = f.bitRate(); |
83 | s.m_byteOrder = f.byteOrder(); |
84 | return *this; |
85 | } |
86 | |
87 | bool AudioFormat::operator==(const AudioFormat &f) const |
88 | { |
89 | return s.m_sampleRate == f.sampleRate() && |
90 | s.m_channelCount == f.channelCount() && |
91 | s.m_bitRate == f.bitRate() && |
92 | s.m_byteOrder == f.byteOrder(); |
93 | } |
94 | |
95 | bool AudioFormat::operator<(const AudioFormat &f) const |
96 | { |
97 | return s.m_bitRate < f.bitRate() || |
98 | (s.m_bitRate == f.bitRate() && (s.m_sampleRate < f.sampleRate() || |
99 | (s.m_sampleRate == f.sampleRate() && (s.m_channelCount < f.channelCount() || |
100 | (s.m_channelCount == f.channelCount() && s.m_byteOrder != QSysInfo::ByteOrder && f.byteOrder() == QSysInfo::ByteOrder))))); |
101 | } |
102 | |
103 | quint32 AudioFormat::key() const |
104 | { |
105 | return (s.m_byteOrder == QSysInfo::ByteOrder ? 1 : 0) + // 1 bit least significant |
106 | (s.m_channelCount << 1) + // give it 8 bits |
107 | (s.m_sampleRate) + // 192kHz ~ 18 bits (let the (unimportant) lower 9 bits overlap with channels + byteOrder) |
108 | (s.m_bitRate << 18); // most significant |
109 | } |
110 | |
111 | } // namespace Experimental |
112 | } // namespace Phonon |
113 | |