blob: ebae2c70c3ed8d338bb93c20e32405d30f1ffc5b (
plain)
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
|
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QAUDIOBUFFER_P_H
#define QAUDIOBUFFER_P_H
#include <qtmultimediadefs.h>
#include <qmultimedia.h>
#include "qaudioformat.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
// Required for QDoc workaround
class QString;
class Q_MULTIMEDIA_EXPORT QAbstractAudioBuffer {
public:
virtual ~QAbstractAudioBuffer() {}
// Lifetime management
virtual void release() = 0;
// Format related
virtual QAudioFormat format() const = 0;
virtual qint64 startTime() const = 0;
virtual int frameCount() const = 0;
// R/O Data
virtual void *constData() const = 0;
// For writable data we do this:
// If we only have one reference to the provider,
// call writableData(). If that does not return 0,
// then we're finished. If it does return 0, then we call
// writableClone() to get a new buffer and then release
// the old clone if that succeeds. If it fails, we create
// a memory clone from the constData and release the old buffer.
// If writableClone() succeeds, we then call writableData() on it
// and that should be good.
virtual void *writableData() = 0;
virtual QAbstractAudioBuffer *clone() const = 0;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QAUDIOBUFFER_P_H
|