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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Sonic Visualiser
An audio file viewer and annotation editor.
Centre for Digital Music, Queen Mary, University of London.
This file copyright 2007 QMUL.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version. See the file
COPYING included with this distribution for more information.
*/
#ifndef WITHOUT_LIBSNDFILE // See note in header
#include "DecodingWavFileReader.h"
#include "WavFileReader.h"
#include "base/Profiler.h"
#include "base/ProgressReporter.h"
#include <QFileInfo>
using namespace std;
namespace sv {
DecodingWavFileReader::DecodingWavFileReader(FileSource source,
DecodeMode decodeMode,
CacheMode mode,
sv_samplerate_t targetRate,
bool normalised,
ProgressReporter *reporter) :
CodedAudioFileReader(mode, targetRate, normalised),
m_source(source),
m_path(source.getLocalFilename()),
m_cancelled(false),
m_processed(0),
m_completion(0),
m_original(nullptr),
m_reporter(reporter),
m_decodeThread(nullptr)
{
SVDEBUG << "DecodingWavFileReader: local path: \"" << m_path
<< "\", decode mode: " << decodeMode << " ("
<< (decodeMode == DecodeAtOnce ? "DecodeAtOnce" : "DecodeThreaded")
<< ")" << endl;
m_channelCount = 0;
m_fileRate = 0;
Profiler profiler("DecodingWavFileReader::DecodingWavFileReader");
m_original = new WavFileReader(m_path);
if (!m_original->isOK()) {
m_error = m_original->getError();
return;
}
m_channelCount = m_original->getChannelCount();
m_fileRate = m_original->getSampleRate();
m_title = m_original->getTitle();
m_maker = m_original->getMaker();
initialiseDecodeCache();
if (decodeMode == DecodeAtOnce) {
if (m_reporter) {
connect(m_reporter, SIGNAL(cancelled()), this, SLOT(cancelled()));
m_reporter->setMessage
(tr("Decoding %1...").arg(QFileInfo(m_path).fileName()));
}
sv_frame_t blockSize = 16384;
sv_frame_t total = m_original->getFrameCount();
floatvec_t block;
for (sv_frame_t i = 0; i < total; i += blockSize) {
sv_frame_t count = blockSize;
if (i + count > total) count = total - i;
block = m_original->getInterleavedFrames(i, count);
addBlock(block);
if (m_cancelled) break;
}
if (isDecodeCacheInitialised()) finishDecodeCache();
endSerialised();
if (m_reporter) m_reporter->setProgress(100);
delete m_original;
m_original = nullptr;
} else {
if (m_reporter) m_reporter->setProgress(100);
m_decodeThread = new DecodeThread(this);
m_decodeThread->start();
}
}
DecodingWavFileReader::~DecodingWavFileReader()
{
if (m_decodeThread) {
m_cancelled = true;
m_decodeThread->wait();
delete m_decodeThread;
}
delete m_original;
}
void
DecodingWavFileReader::cancelled()
{
m_cancelled = true;
}
void
DecodingWavFileReader::DecodeThread::run()
{
if (m_reader->m_cacheMode == CacheInTemporaryFile) {
m_reader->startSerialised("DecodingWavFileReader::Decode",
&m_reader->m_cancelled);
if (m_reader->m_cancelled) {
return;
}
}
sv_frame_t blockSize = 16384;
sv_frame_t total = m_reader->m_original->getFrameCount();
floatvec_t block;
for (sv_frame_t i = 0; i < total; i += blockSize) {
sv_frame_t count = blockSize;
if (i + count > total) count = total - i;
block = m_reader->m_original->getInterleavedFrames(i, count);
m_reader->addBlock(block);
if (m_reader->m_cancelled) break;
}
if (m_reader->isDecodeCacheInitialised()) m_reader->finishDecodeCache();
m_reader->m_completion = 100;
m_reader->endSerialised();
delete m_reader->m_original;
m_reader->m_original = nullptr;
}
void
DecodingWavFileReader::addBlock(const floatvec_t &frames)
{
addSamplesToDecodeCache(frames);
m_processed += frames.size();
double ratio = double(m_sampleRate) / double(m_fileRate);
int progress = int(lrint((double(m_processed) * ratio * 100) /
double(m_original->getFrameCount())));
if (progress > 99) progress = 99;
m_completion = progress;
if (m_reporter) {
m_reporter->setProgress(progress);
}
}
void
DecodingWavFileReader::getSupportedExtensions(set<QString> &extensions)
{
WavFileReader::getSupportedExtensions(extensions);
}
bool
DecodingWavFileReader::supportsExtension(QString extension)
{
return WavFileReader::supportsExtension(extension);
}
bool
DecodingWavFileReader::supportsContentType(QString type)
{
return WavFileReader::supportsContentType(type);
}
bool
DecodingWavFileReader::supports(FileSource &source)
{
return WavFileReader::supports(source);
}
} // end namespace sv
#endif
|
