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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
Q Light Controller Plus
audiodecoder_sndfile.cpp
Copyright (c) Massimo Callegari
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0.txt
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/******************************************************
* Based on qmmp project *
* *
* Copyright (C) 2007-2009 by Ilya Kotov *
* forkotov02@hotmail.ru *
******************************************************/
#include <QObject>
#include <QFile>
#include <QFileInfo>
#include <QDebug>
#include "audiodecoder_sndfile.h"
AudioDecoderSndFile::~AudioDecoderSndFile()
{
m_totalTime = 0;
m_bitrate = 0;
m_freq = 0;
if (m_path.isEmpty() == false && m_sndfile != NULL)
sf_close(m_sndfile);
m_sndfile = NULL;
}
AudioDecoder *AudioDecoderSndFile::createCopy()
{
AudioDecoderSndFile* copy = new AudioDecoderSndFile();
return qobject_cast<AudioDecoder *>(copy);
}
int AudioDecoderSndFile::priority() const
{
return 10;
}
bool AudioDecoderSndFile::initialize(const QString &path)
{
m_path = path;
m_bitrate = 0;
m_totalTime = 0;
m_sndfile = NULL;
m_freq = 0;
SF_INFO snd_info;
if (path.isEmpty())
return false;
memset (&snd_info, 0, sizeof(snd_info));
snd_info.format = 0;
m_sndfile = sf_open(m_path.toLocal8Bit(), SFM_READ, &snd_info);
if (!m_sndfile)
{
qWarning("DecoderSndFile: failed to open: %s", qPrintable(m_path));
return false;
}
m_freq = snd_info.samplerate;
int chan = snd_info.channels;
m_totalTime = snd_info.frames * 1000 / m_freq;
m_bitrate = QFileInfo(m_path).size () * 8.0 / m_totalTime + 0.5;
if ((snd_info.format & SF_FORMAT_SUBMASK) == SF_FORMAT_FLOAT)
{
qDebug() << "DecoderSndFile: Float audio format";
sf_command (m_sndfile, SFC_SET_SCALE_FLOAT_INT_READ, NULL, SF_TRUE);
}
AudioFormat pcmFormat = PCM_S16LE;
switch(snd_info.format & SF_FORMAT_SUBMASK)
{
case SF_FORMAT_PCM_S8: pcmFormat = PCM_S8; break;
case SF_FORMAT_PCM_16: pcmFormat = PCM_S16LE; break;
case SF_FORMAT_PCM_24: pcmFormat = PCM_S24LE; break;
case SF_FORMAT_PCM_32: pcmFormat = PCM_S32LE; break;
default: pcmFormat = PCM_S16LE; break;
}
configure(m_freq, chan, pcmFormat);
qDebug() << "DecoderSndFile: detected format: Sample Rate:" << m_freq <<
",Channels: " << chan << ", PCM Format: " << pcmFormat /*snd_info.format*/;
return true;
}
qint64 AudioDecoderSndFile::totalTime()
{
return m_totalTime;
}
int AudioDecoderSndFile::bitrate()
{
return m_bitrate;
}
qint64 AudioDecoderSndFile::read(char *audio, qint64 maxSize)
{
return sizeof(short)* sf_read_short (m_sndfile, (short *)audio, maxSize / sizeof(short));
}
void AudioDecoderSndFile::seek(qint64 pos)
{
sf_seek(m_sndfile, m_freq * pos/1000, SEEK_SET);
}
QStringList AudioDecoderSndFile::supportedFormats()
{
QStringList caps;
SF_FORMAT_INFO format_info;
int k, count ;
sf_command (0, SFC_GET_SIMPLE_FORMAT_COUNT, &count, sizeof (int)) ;
for (k = 0 ; k < count ; k++)
{
format_info.format = k;
sf_command (0, SFC_GET_SIMPLE_FORMAT, &format_info, sizeof (format_info));
qDebug("%08x %s %s", format_info.format, format_info.name, format_info.extension);
QString ext = QString(format_info.extension);
if (ext == "aiff" && !caps.contains("*.aiff"))
caps << "*.aiff";
else if (ext == "aifc" && !caps.contains("*.aifc"))
caps << "*.aifc";
else if (ext == "flac" && !caps.contains("*.flac"))
caps << "*.flac";
else if ((ext == "ogg" || ext == "oga") && !caps.contains("*.ogg"))
caps << "*.oga" << "*.ogg";
else if (ext == "wav" && !caps.contains("*.wav"))
caps << "*.wav";
else if (ext == "mp3" && !caps.contains("*.mp3"))
caps << "*.mp3";
}
return caps;
}
|
