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
|
/******************************************************************************
* This file is part of the QtOpenAL project
* Copyright (c) 2011 Laszlo Papp <lpapp@kde.org>
*
* 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 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
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "qalsndaudiodecoder.h"
#include <QtCore/QFile>
#include <QtCore/QString>
#include <QtCore/QUrl>
#include <QtCore/QDebug>
#include <sndfile.h>
class QALSndAudioDecoder::Private
{
public:
Private()
{
}
~Private()
{
}
QByteArray encodedData;
SNDFILE *sndFile;
};
QALSndAudioDecoder::QALSndAudioDecoder()
: d(new Private)
{
}
QALSndAudioDecoder::~QALSndAudioDecoder()
{
}
bool
QALSndAudioDecoder::open(const QFile &file)
{
return open(file.fileName());
}
bool
QALSndAudioDecoder::open(const QUrl &fileUrl)
{
return open(fileUrl.toLocalFile());
}
bool
QALSndAudioDecoder::open(const QString &fileName)
{
SF_INFO sfInfo;
sfInfo.format = 0;
if ((d->sndFile = sf_open(fileName.toUtf8().constData(), SFM_READ, &sfInfo)) == 0) {
qWarning() << Q_FUNC_INFO << "Failed to open the file" << fileName.toUtf8().constData() << "for decoding:" << sf_strerror(d->sndFile);
return false;
}
return true;
}
qint64
QALSndAudioDecoder::pos()
{
int position;
if ((position = sf_seek(d->sndFile, 0, SEEK_CUR)) == -1) {
qWarning() << Q_FUNC_INFO << "Failed to tell the current position:" << sf_strerror(d->sndFile);
}
return position;
}
bool
QALSndAudioDecoder::seek(qint64 pos)
{
if (sf_seek(d->sndFile, pos, SEEK_SET) == -1) {
qWarning() << Q_FUNC_INFO << "Failed to seek in the file:" << sf_strerror(d->sndFile);
return false;
}
return true;
}
bool
QALSndAudioDecoder::close()
{
if (sf_close(d->sndFile)) {
qWarning() << Q_FUNC_INFO << "Failed to close the file:" << sf_strerror(d->sndFile);
return false;
}
return true;
}
void
QALSndAudioDecoder::setEncodedData(const QByteArray &encodedData)
{
d->encodedData = encodedData;
}
QByteArray
QALSndAudioDecoder::decode(qint64 maxlen)
{
QByteArray result;
result.reserve(maxlen);
char *decodedData = result.data();
if (maxlen != decode(decodedData, maxlen))
qWarning() << Q_FUNC_INFO << "Could not to decode all the data:" << maxlen;
return result;
}
qint64
QALSndAudioDecoder::decode(char *decodedData, qint64 maxlen)
{
return sf_readf_short(d->sndFile, reinterpret_cast<short*>(decodedData), maxlen);
}
|
