forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
webaudiosourceprovider_impl_unittest.cc
351 lines (281 loc) · 12 KB
/
webaudiosourceprovider_impl_unittest.cc
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
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include "base/bind.h"
#include "base/macros.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "media/base/audio_parameters.h"
#include "media/base/fake_audio_render_callback.h"
#include "media/base/media_log.h"
#include "media/base/mock_audio_renderer_sink.h"
#include "media/blink/webaudiosourceprovider_impl.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/WebKit/public/platform/WebAudioSourceProviderClient.h"
using ::testing::_;
namespace media {
namespace {
const float kTestVolume = 0.25;
const int kSampleRate = 48000;
class WebAudioSourceProviderImplUnderTest : public WebAudioSourceProviderImpl {
public:
WebAudioSourceProviderImplUnderTest(
scoped_refptr<SwitchableAudioRendererSink> sink)
: WebAudioSourceProviderImpl(std::move(sink), new MediaLog()),
fallback_sink_(new MockAudioRendererSink()) {}
MockAudioRendererSink* fallback_sink() { return fallback_sink_.get(); }
protected:
scoped_refptr<SwitchableAudioRendererSink> CreateFallbackSink() override {
return fallback_sink_;
}
private:
~WebAudioSourceProviderImplUnderTest() override = default;
scoped_refptr<MockAudioRendererSink> fallback_sink_;
DISALLOW_COPY_AND_ASSIGN(WebAudioSourceProviderImplUnderTest);
};
enum class WaspSinkStatus { WASP_SINK_OK, WASP_SINK_ERROR, WASP_SINK_NULL };
scoped_refptr<MockAudioRendererSink> CreateWaspMockSink(WaspSinkStatus status) {
if (status == WaspSinkStatus::WASP_SINK_NULL)
return nullptr;
return new MockAudioRendererSink(status == WaspSinkStatus::WASP_SINK_OK
? OUTPUT_DEVICE_STATUS_OK
: OUTPUT_DEVICE_STATUS_ERROR_INTERNAL);
}
} // namespace
class WebAudioSourceProviderImplTest
: public testing::TestWithParam<WaspSinkStatus>,
public blink::WebAudioSourceProviderClient {
public:
WebAudioSourceProviderImplTest()
: params_(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_STEREO,
kSampleRate,
16,
64),
fake_callback_(0.1, kSampleRate),
mock_sink_(CreateWaspMockSink(GetParam())),
wasp_impl_(new WebAudioSourceProviderImplUnderTest(mock_sink_)),
expected_sink_(GetParam() == WaspSinkStatus::WASP_SINK_OK
? mock_sink_.get()
: wasp_impl_->fallback_sink()) {}
virtual ~WebAudioSourceProviderImplTest() {}
void CallAllSinkMethodsAndVerify(bool verify) {
testing::InSequence s;
EXPECT_CALL(*expected_sink_, Start()).Times(verify);
wasp_impl_->Start();
EXPECT_CALL(*expected_sink_, Play()).Times(verify);
wasp_impl_->Play();
EXPECT_CALL(*expected_sink_, Pause()).Times(verify);
wasp_impl_->Pause();
EXPECT_CALL(*expected_sink_, SetVolume(kTestVolume)).Times(verify);
wasp_impl_->SetVolume(kTestVolume);
EXPECT_CALL(*expected_sink_, Stop()).Times(verify);
wasp_impl_->Stop();
testing::Mock::VerifyAndClear(mock_sink_.get());
}
void SetClient(blink::WebAudioSourceProviderClient* client) {
testing::InSequence s;
if (client) {
EXPECT_CALL(*expected_sink_, Stop());
EXPECT_CALL(*this, setFormat(params_.channels(), params_.sample_rate()));
}
wasp_impl_->setClient(client);
base::RunLoop().RunUntilIdle();
testing::Mock::VerifyAndClear(mock_sink_.get());
testing::Mock::VerifyAndClear(wasp_impl_->fallback_sink());
testing::Mock::VerifyAndClear(this);
}
bool CompareBusses(const AudioBus* bus1, const AudioBus* bus2) {
EXPECT_EQ(bus1->channels(), bus2->channels());
EXPECT_EQ(bus1->frames(), bus2->frames());
for (int ch = 0; ch < bus1->channels(); ++ch) {
if (memcmp(bus1->channel(ch), bus2->channel(ch),
sizeof(*bus1->channel(ch)) * bus1->frames()) != 0) {
return false;
}
}
return true;
}
// blink::WebAudioSourceProviderClient implementation.
MOCK_METHOD2(setFormat, void(size_t numberOfChannels, float sampleRate));
// CopyAudioCB. Added forwarder method due to GMock troubles with scoped_ptr.
MOCK_METHOD3(DoCopyAudioCB,
void(AudioBus*, uint32_t frames_delayed, int sample_rate));
void OnAudioBus(std::unique_ptr<AudioBus> bus,
uint32_t frames_delayed,
int sample_rate) {
DoCopyAudioCB(bus.get(), frames_delayed, sample_rate);
}
int Render(AudioBus* audio_bus) {
return wasp_impl_->RenderForTesting(audio_bus);
}
void ExpectUnhealthySinkToStop() {
if (GetParam() == WaspSinkStatus::WASP_SINK_ERROR)
EXPECT_CALL(*mock_sink_.get(), Stop());
}
protected:
AudioParameters params_;
FakeAudioRenderCallback fake_callback_;
scoped_refptr<MockAudioRendererSink> mock_sink_;
scoped_refptr<WebAudioSourceProviderImplUnderTest> wasp_impl_;
MockAudioRendererSink* expected_sink_;
base::MessageLoop message_loop_;
DISALLOW_COPY_AND_ASSIGN(WebAudioSourceProviderImplTest);
};
TEST_P(WebAudioSourceProviderImplTest, SetClientBeforeInitialize) {
// setClient() with a NULL client should do nothing if no client is set.
wasp_impl_->setClient(NULL);
// If |mock_sink_| is not null, it should be stopped during setClient(this).
// If it is unhealthy, it should also be stopped during fallback in
// Initialize().
if (mock_sink_)
EXPECT_CALL(*mock_sink_.get(), Stop())
.Times(2 + static_cast<int>(GetParam()));
wasp_impl_->setClient(this);
base::RunLoop().RunUntilIdle();
if (mock_sink_)
EXPECT_CALL(*mock_sink_.get(), SetVolume(1)).Times(1);
wasp_impl_->setClient(NULL);
base::RunLoop().RunUntilIdle();
wasp_impl_->setClient(this);
base::RunLoop().RunUntilIdle();
// When Initialize() is called after setClient(), the params should propagate
// to the client via setFormat() during the call.
EXPECT_CALL(*this, setFormat(params_.channels(), params_.sample_rate()));
wasp_impl_->Initialize(params_, &fake_callback_);
base::RunLoop().RunUntilIdle();
// setClient() with the same client should do nothing.
wasp_impl_->setClient(this);
base::RunLoop().RunUntilIdle();
}
// Verify AudioRendererSink functionality w/ and w/o a client.
TEST_P(WebAudioSourceProviderImplTest, SinkMethods) {
ExpectUnhealthySinkToStop();
wasp_impl_->Initialize(params_, &fake_callback_);
// Without a client all WASP calls should fall through to the underlying sink.
CallAllSinkMethodsAndVerify(true);
// With a client no calls should reach the Stop()'d sink. Also, setClient()
// should propagate the params provided during Initialize() at call time.
SetClient(this);
CallAllSinkMethodsAndVerify(false);
// Removing the client should cause WASP to revert to the underlying sink.
EXPECT_CALL(*expected_sink_, SetVolume(kTestVolume));
SetClient(NULL);
CallAllSinkMethodsAndVerify(true);
}
// Verify underlying sink state is restored after client removal.
TEST_P(WebAudioSourceProviderImplTest, SinkStateRestored) {
ExpectUnhealthySinkToStop();
wasp_impl_->Initialize(params_, &fake_callback_);
// Verify state set before the client is set propagates back afterward.
EXPECT_CALL(*expected_sink_, Start());
wasp_impl_->Start();
SetClient(this);
EXPECT_CALL(*expected_sink_, SetVolume(1.0));
EXPECT_CALL(*expected_sink_, Start());
SetClient(NULL);
// Verify state set while the client was attached propagates back afterward.
SetClient(this);
wasp_impl_->Play();
wasp_impl_->SetVolume(kTestVolume);
EXPECT_CALL(*expected_sink_, SetVolume(kTestVolume));
EXPECT_CALL(*expected_sink_, Start());
EXPECT_CALL(*expected_sink_, Play());
SetClient(NULL);
}
// Test the AudioRendererSink state machine and its effects on provideInput().
TEST_P(WebAudioSourceProviderImplTest, ProvideInput) {
ExpectUnhealthySinkToStop();
std::unique_ptr<AudioBus> bus1 = AudioBus::Create(params_);
std::unique_ptr<AudioBus> bus2 = AudioBus::Create(params_);
// Point the WebVector into memory owned by |bus1|.
blink::WebVector<float*> audio_data(static_cast<size_t>(bus1->channels()));
for (size_t i = 0; i < audio_data.size(); ++i)
audio_data[i] = bus1->channel(static_cast<int>(i));
// Verify provideInput() works before Initialize() and returns silence.
bus1->channel(0)[0] = 1;
bus2->Zero();
wasp_impl_->provideInput(audio_data, params_.frames_per_buffer());
ASSERT_TRUE(CompareBusses(bus1.get(), bus2.get()));
wasp_impl_->Initialize(params_, &fake_callback_);
SetClient(this);
// Verify provideInput() is muted prior to Start() and no calls to the render
// callback have occurred.
bus1->channel(0)[0] = 1;
bus2->Zero();
wasp_impl_->provideInput(audio_data, params_.frames_per_buffer());
ASSERT_TRUE(CompareBusses(bus1.get(), bus2.get()));
ASSERT_EQ(fake_callback_.last_delay(), base::TimeDelta::Max());
wasp_impl_->Start();
// Ditto for Play().
bus1->channel(0)[0] = 1;
wasp_impl_->provideInput(audio_data, params_.frames_per_buffer());
ASSERT_TRUE(CompareBusses(bus1.get(), bus2.get()));
ASSERT_EQ(fake_callback_.last_delay(), base::TimeDelta::Max());
wasp_impl_->Play();
// Now we should get real audio data.
wasp_impl_->provideInput(audio_data, params_.frames_per_buffer());
ASSERT_FALSE(CompareBusses(bus1.get(), bus2.get()));
// Ensure volume adjustment is working.
fake_callback_.reset();
fake_callback_.Render(base::TimeDelta(), base::TimeTicks::Now(), 0,
bus2.get());
bus2->Scale(kTestVolume);
fake_callback_.reset();
wasp_impl_->SetVolume(kTestVolume);
wasp_impl_->provideInput(audio_data, params_.frames_per_buffer());
ASSERT_TRUE(CompareBusses(bus1.get(), bus2.get()));
// Pause should return to silence.
wasp_impl_->Pause();
bus1->channel(0)[0] = 1;
bus2->Zero();
wasp_impl_->provideInput(audio_data, params_.frames_per_buffer());
ASSERT_TRUE(CompareBusses(bus1.get(), bus2.get()));
// Ensure if a renderer properly fill silence for partial Render() calls by
// configuring the fake callback to return half the data. After these calls
// bus1 is full of junk data, and bus2 is partially filled.
wasp_impl_->SetVolume(1);
fake_callback_.Render(base::TimeDelta(), base::TimeTicks::Now(), 0,
bus1.get());
fake_callback_.reset();
fake_callback_.Render(base::TimeDelta(), base::TimeTicks::Now(), 0,
bus2.get());
bus2->ZeroFramesPartial(bus2->frames() / 2,
bus2->frames() - bus2->frames() / 2);
fake_callback_.reset();
fake_callback_.set_half_fill(true);
wasp_impl_->Play();
// Play should return real audio data again, but the last half should be zero.
wasp_impl_->provideInput(audio_data, params_.frames_per_buffer());
ASSERT_TRUE(CompareBusses(bus1.get(), bus2.get()));
// Stop() should return silence.
wasp_impl_->Stop();
bus1->channel(0)[0] = 1;
bus2->Zero();
wasp_impl_->provideInput(audio_data, params_.frames_per_buffer());
ASSERT_TRUE(CompareBusses(bus1.get(), bus2.get()));
}
// Verify CopyAudioCB is called if registered.
TEST_P(WebAudioSourceProviderImplTest, CopyAudioCB) {
ExpectUnhealthySinkToStop();
testing::InSequence s;
wasp_impl_->Initialize(params_, &fake_callback_);
wasp_impl_->SetCopyAudioCallback(base::Bind(
&WebAudioSourceProviderImplTest::OnAudioBus, base::Unretained(this)));
const std::unique_ptr<AudioBus> bus1 = AudioBus::Create(params_);
EXPECT_CALL(*this, DoCopyAudioCB(_, 0, params_.sample_rate())).Times(1);
Render(bus1.get());
wasp_impl_->ClearCopyAudioCallback();
EXPECT_CALL(*this, DoCopyAudioCB(_, _, _)).Times(0);
Render(bus1.get());
testing::Mock::VerifyAndClear(mock_sink_.get());
}
INSTANTIATE_TEST_CASE_P(
/* prefix intentionally left blank due to only one parameterization */,
WebAudioSourceProviderImplTest,
testing::Values(WaspSinkStatus::WASP_SINK_OK,
WaspSinkStatus::WASP_SINK_ERROR,
WaspSinkStatus::WASP_SINK_NULL));
} // namespace media