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
|
// Copyright 2014 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 "components/copresence/mediums/audio/audio_player.h"
#include "base/bind.h"
#include "base/memory/weak_ptr.h"
#include "components/copresence/public/copresence_constants.h"
#include "components/copresence/test/audio_test_support.h"
#include "media/audio/audio_manager.h"
#include "media/audio/audio_manager_base.h"
#include "media/base/audio_bus.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
class TestAudioOutputStream : public media::AudioOutputStream {
public:
typedef base::Callback<void(scoped_ptr<media::AudioBus>, int frames)>
GatherSamplesCallback;
TestAudioOutputStream(int default_frame_count,
int max_frame_count,
GatherSamplesCallback gather_callback)
: default_frame_count_(default_frame_count),
max_frame_count_(max_frame_count),
gather_callback_(gather_callback),
callback_(NULL) {
caller_loop_ = base::MessageLoop::current();
}
virtual ~TestAudioOutputStream() {}
virtual bool Open() OVERRIDE { return true; }
virtual void Start(AudioSourceCallback* callback) OVERRIDE {
callback_ = callback;
GatherPlayedSamples();
}
virtual void Stop() OVERRIDE {}
virtual void SetVolume(double volume) OVERRIDE {}
virtual void GetVolume(double* volume) OVERRIDE {}
virtual void Close() OVERRIDE {}
private:
void GatherPlayedSamples() {
int frames = 0, total_frames = 0;
do {
// Call back into the player to get samples that it wants us to play.
scoped_ptr<media::AudioBus> dest =
media::AudioBus::Create(1, default_frame_count_);
frames = callback_->OnMoreData(dest.get(), media::AudioBuffersState());
total_frames += frames;
// Send the samples given to us by the player to the gather callback.
caller_loop_->PostTask(
FROM_HERE, base::Bind(gather_callback_, base::Passed(&dest), frames));
} while (frames && total_frames < max_frame_count_);
}
int default_frame_count_;
int max_frame_count_;
GatherSamplesCallback gather_callback_;
AudioSourceCallback* callback_;
base::MessageLoop* caller_loop_;
DISALLOW_COPY_AND_ASSIGN(TestAudioOutputStream);
};
} // namespace
namespace copresence {
class AudioPlayerTest : public testing::Test,
public base::SupportsWeakPtr<AudioPlayerTest> {
public:
AudioPlayerTest() : buffer_index_(0), player_(NULL) {
if (!media::AudioManager::Get())
media::AudioManager::CreateForTesting();
}
virtual ~AudioPlayerTest() { DeletePlayer(); }
void CreatePlayer() {
DeletePlayer();
player_ = new AudioPlayer();
player_->set_output_stream_for_testing(new TestAudioOutputStream(
kDefaultFrameCount,
kMaxFrameCount,
base::Bind(&AudioPlayerTest::GatherSamples, AsWeakPtr())));
player_->Initialize();
}
void DeletePlayer() {
if (!player_)
return;
player_->Finalize();
player_ = NULL;
}
void PlayAndVerifySamples(
const scoped_refptr<media::AudioBusRefCounted>& samples) {
buffer_ = media::AudioBus::Create(1, kMaxFrameCount);
player_->Play(samples);
player_->FlushAudioLoopForTesting();
int differences = 0;
for (int i = 0; i < samples->frames(); ++i)
differences += (buffer_->channel(0)[i] != samples->channel(0)[i]);
ASSERT_EQ(0, differences);
buffer_.reset();
}
void GatherSamples(scoped_ptr<media::AudioBus> bus, int frames) {
if (!buffer_.get())
return;
bus->CopyPartialFramesTo(0, frames, buffer_index_, buffer_.get());
buffer_index_ += frames;
}
protected:
bool IsPlaying() {
player_->FlushAudioLoopForTesting();
return player_->is_playing_;
}
static const int kDefaultFrameCount = 1024;
static const int kMaxFrameCount = 1024 * 10;
scoped_ptr<media::AudioBus> buffer_;
int buffer_index_;
AudioPlayer* player_;
base::MessageLoop message_loop_;
};
TEST_F(AudioPlayerTest, BasicPlayAndStop) {
CreatePlayer();
scoped_refptr<media::AudioBusRefCounted> samples =
media::AudioBusRefCounted::Create(1, 7331);
player_->Play(samples);
EXPECT_TRUE(IsPlaying());
player_->Stop();
EXPECT_FALSE(IsPlaying());
player_->Play(samples);
EXPECT_TRUE(IsPlaying());
player_->Stop();
EXPECT_FALSE(IsPlaying());
player_->Play(samples);
EXPECT_TRUE(IsPlaying());
player_->Stop();
EXPECT_FALSE(IsPlaying());
DeletePlayer();
}
TEST_F(AudioPlayerTest, OutOfOrderPlayAndStopMultiple) {
CreatePlayer();
scoped_refptr<media::AudioBusRefCounted> samples =
media::AudioBusRefCounted::Create(1, 1337);
player_->Stop();
player_->Stop();
player_->Stop();
EXPECT_FALSE(IsPlaying());
player_->Play(samples);
player_->Play(samples);
EXPECT_TRUE(IsPlaying());
player_->Stop();
player_->Stop();
EXPECT_FALSE(IsPlaying());
DeletePlayer();
}
TEST_F(AudioPlayerTest, PlayingEndToEnd) {
const int kNumSamples = kDefaultFrameCount * 10;
CreatePlayer();
PlayAndVerifySamples(CreateRandomAudioRefCounted(0x1337, 1, kNumSamples));
DeletePlayer();
}
} // namespace copresence
|
