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
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
|
/*
* Copyright (C) 2011, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
#include "third_party/blink/renderer/modules/webaudio/biquad_filter_node.h"
#include <memory>
#include "third_party/blink/renderer/core/inspector/console_message.h"
#include "third_party/blink/renderer/modules/webaudio/audio_basic_processor_handler.h"
#include "third_party/blink/renderer/modules/webaudio/audio_node_output.h"
#include "third_party/blink/renderer/modules/webaudio/biquad_filter_options.h"
#include "third_party/blink/renderer/platform/bindings/exception_messages.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/instrumentation/histogram.h"
#include "third_party/blink/renderer/platform/scheduler/public/post_cross_thread_task.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_functional.h"
namespace blink {
BiquadFilterHandler::BiquadFilterHandler(AudioNode& node,
float sample_rate,
AudioParamHandler& frequency,
AudioParamHandler& q,
AudioParamHandler& gain,
AudioParamHandler& detune)
: AudioBasicProcessorHandler(kNodeTypeBiquadFilter,
node,
sample_rate,
std::make_unique<BiquadProcessor>(sample_rate,
1,
frequency,
q,
gain,
detune)) {
DCHECK(Context());
DCHECK(Context()->GetExecutionContext());
task_runner_ = Context()->GetExecutionContext()->GetTaskRunner(
TaskType::kMediaElementEvent);
// Initialize the handler so that AudioParams can be processed.
Initialize();
}
scoped_refptr<BiquadFilterHandler> BiquadFilterHandler::Create(
AudioNode& node,
float sample_rate,
AudioParamHandler& frequency,
AudioParamHandler& q,
AudioParamHandler& gain,
AudioParamHandler& detune) {
return base::AdoptRef(
new BiquadFilterHandler(node, sample_rate, frequency, q, gain, detune));
}
void BiquadFilterHandler::Process(uint32_t frames_to_process) {
AudioBasicProcessorHandler::Process(frames_to_process);
if (!did_warn_bad_filter_state_) {
// Inform the user once if the output has a non-finite value. This is a
// proxy for the filter state containing non-finite values since the output
// is also saved as part of the state of the filter.
if (HasNonFiniteOutput()) {
did_warn_bad_filter_state_ = true;
PostCrossThreadTask(
*task_runner_, FROM_HERE,
CrossThreadBindOnce(&BiquadFilterHandler::NotifyBadState,
AsWeakPtr()));
}
}
}
void BiquadFilterHandler::NotifyBadState() const {
DCHECK(IsMainThread());
if (!Context() || !Context()->GetExecutionContext())
return;
Context()->GetExecutionContext()->AddConsoleMessage(ConsoleMessage::Create(
mojom::ConsoleMessageSource::kJavaScript,
mojom::ConsoleMessageLevel::kWarning,
NodeTypeName() + ": state is bad, probably due to unstable filter caused "
"by fast parameter automation."));
}
BiquadFilterNode::BiquadFilterNode(BaseAudioContext& context)
: AudioNode(context),
frequency_(
AudioParam::Create(context,
Uuid(),
AudioParamHandler::kParamTypeBiquadFilterFrequency,
350.0,
AudioParamHandler::AutomationRate::kAudio,
AudioParamHandler::AutomationRateMode::kVariable,
0,
context.sampleRate() / 2)),
q_(AudioParam::Create(context,
Uuid(),
AudioParamHandler::kParamTypeBiquadFilterQ,
1.0,
AudioParamHandler::AutomationRate::kAudio,
AudioParamHandler::AutomationRateMode::kVariable)),
gain_(
AudioParam::Create(context,
Uuid(),
AudioParamHandler::kParamTypeBiquadFilterGain,
0.0,
AudioParamHandler::AutomationRate::kAudio,
AudioParamHandler::AutomationRateMode::kVariable)),
detune_(AudioParam::Create(
context,
Uuid(),
AudioParamHandler::kParamTypeBiquadFilterDetune,
0.0,
AudioParamHandler::AutomationRate::kAudio,
AudioParamHandler::AutomationRateMode::kVariable)) {
SetHandler(BiquadFilterHandler::Create(*this, context.sampleRate(),
frequency_->Handler(), q_->Handler(),
gain_->Handler(), detune_->Handler()));
setType("lowpass");
}
BiquadFilterNode* BiquadFilterNode::Create(BaseAudioContext& context,
ExceptionState& exception_state) {
DCHECK(IsMainThread());
return MakeGarbageCollected<BiquadFilterNode>(context);
}
BiquadFilterNode* BiquadFilterNode::Create(BaseAudioContext* context,
const BiquadFilterOptions* options,
ExceptionState& exception_state) {
BiquadFilterNode* node = Create(*context, exception_state);
if (!node)
return nullptr;
node->HandleChannelOptions(options, exception_state);
node->setType(options->type());
node->q()->setValue(options->Q());
node->detune()->setValue(options->detune());
node->frequency()->setValue(options->frequency());
node->gain()->setValue(options->gain());
return node;
}
void BiquadFilterNode::Trace(blink::Visitor* visitor) {
visitor->Trace(frequency_);
visitor->Trace(q_);
visitor->Trace(gain_);
visitor->Trace(detune_);
AudioNode::Trace(visitor);
}
BiquadProcessor* BiquadFilterNode::GetBiquadProcessor() const {
return static_cast<BiquadProcessor*>(
static_cast<BiquadFilterHandler&>(Handler()).Processor());
}
String BiquadFilterNode::type() const {
switch (
const_cast<BiquadFilterNode*>(this)->GetBiquadProcessor()->GetType()) {
case BiquadProcessor::kLowPass:
return "lowpass";
case BiquadProcessor::kHighPass:
return "highpass";
case BiquadProcessor::kBandPass:
return "bandpass";
case BiquadProcessor::kLowShelf:
return "lowshelf";
case BiquadProcessor::kHighShelf:
return "highshelf";
case BiquadProcessor::kPeaking:
return "peaking";
case BiquadProcessor::kNotch:
return "notch";
case BiquadProcessor::kAllpass:
return "allpass";
default:
NOTREACHED();
return "lowpass";
}
}
void BiquadFilterNode::setType(const String& type) {
// For the Q histogram, we need to change the name of the AudioParam for the
// lowpass and highpass filters so we know to count the Q value when it is
// set. And explicitly set the value to itself so the histograms know the
// initial value.
if (type == "lowpass") {
setType(BiquadProcessor::kLowPass);
} else if (type == "highpass") {
setType(BiquadProcessor::kHighPass);
} else if (type == "bandpass") {
setType(BiquadProcessor::kBandPass);
} else if (type == "lowshelf") {
setType(BiquadProcessor::kLowShelf);
} else if (type == "highshelf") {
setType(BiquadProcessor::kHighShelf);
} else if (type == "peaking") {
setType(BiquadProcessor::kPeaking);
} else if (type == "notch") {
setType(BiquadProcessor::kNotch);
} else if (type == "allpass") {
setType(BiquadProcessor::kAllpass);
}
}
bool BiquadFilterNode::setType(unsigned type) {
if (type > BiquadProcessor::kAllpass)
return false;
DEFINE_STATIC_LOCAL(
EnumerationHistogram, filter_type_histogram,
("WebAudio.BiquadFilter.Type", BiquadProcessor::kAllpass + 1));
filter_type_histogram.Count(type);
GetBiquadProcessor()->SetType(static_cast<BiquadProcessor::FilterType>(type));
return true;
}
void BiquadFilterNode::getFrequencyResponse(
NotShared<const DOMFloat32Array> frequency_hz,
NotShared<DOMFloat32Array> mag_response,
NotShared<DOMFloat32Array> phase_response,
ExceptionState& exception_state) {
unsigned frequency_hz_length = frequency_hz.View()->length();
if (mag_response.View()->length() != frequency_hz_length) {
exception_state.ThrowDOMException(
DOMExceptionCode::kInvalidAccessError,
ExceptionMessages::IndexOutsideRange(
"magResponse length", mag_response.View()->length(),
frequency_hz_length, ExceptionMessages::kInclusiveBound,
frequency_hz_length, ExceptionMessages::kInclusiveBound));
return;
}
if (phase_response.View()->length() != frequency_hz_length) {
exception_state.ThrowDOMException(
DOMExceptionCode::kInvalidAccessError,
ExceptionMessages::IndexOutsideRange(
"phaseResponse length", phase_response.View()->length(),
frequency_hz_length, ExceptionMessages::kInclusiveBound,
frequency_hz_length, ExceptionMessages::kInclusiveBound));
return;
}
GetBiquadProcessor()->GetFrequencyResponse(
frequency_hz_length, frequency_hz.View()->Data(),
mag_response.View()->Data(), phase_response.View()->Data());
}
} // namespace blink
|
