1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "base/basictypes.h"
6 #include "base/environment.h"
7 #include "base/memory/scoped_ptr.h"
8 #include "base/message_loop/message_loop.h"
9 #include "base/threading/platform_thread.h"
10 #include "media/audio/audio_io.h"
11 #include "media/audio/audio_manager_base.h"
12 #include "testing/gtest/include/gtest/gtest.h"
13
14 namespace media {
15
16 static const int kSamplingRate = 8000;
17 static const int kSamplesPerPacket = kSamplingRate / 20;
18
19 // This class allows to find out if the callbacks are occurring as
20 // expected and if any error has been reported.
21 class TestInputCallback : public AudioInputStream::AudioInputCallback {
22 public:
TestInputCallback(int max_data_bytes)23 explicit TestInputCallback(int max_data_bytes)
24 : callback_count_(0),
25 had_error_(0),
26 max_data_bytes_(max_data_bytes) {
27 }
OnData(AudioInputStream * stream,const uint8 * data,uint32 size,uint32 hardware_delay_bytes,double volume)28 virtual void OnData(AudioInputStream* stream,
29 const uint8* data,
30 uint32 size,
31 uint32 hardware_delay_bytes,
32 double volume) OVERRIDE {
33 ++callback_count_;
34 // Read the first byte to make sure memory is good.
35 if (size) {
36 ASSERT_LE(static_cast<int>(size), max_data_bytes_);
37 int value = data[0];
38 EXPECT_GE(value, 0);
39 }
40 }
OnClose(AudioInputStream * stream)41 virtual void OnClose(AudioInputStream* stream) OVERRIDE {}
OnError(AudioInputStream * stream)42 virtual void OnError(AudioInputStream* stream) OVERRIDE {
43 ++had_error_;
44 }
45 // Returns how many times OnData() has been called.
callback_count() const46 int callback_count() const {
47 return callback_count_;
48 }
49 // Returns how many times the OnError callback was called.
had_error() const50 int had_error() const {
51 return had_error_;
52 }
53
54 private:
55 int callback_count_;
56 int had_error_;
57 int max_data_bytes_;
58 };
59
CanRunAudioTests(AudioManager * audio_man)60 static bool CanRunAudioTests(AudioManager* audio_man) {
61 bool has_input = audio_man->HasAudioInputDevices();
62
63 if (!has_input)
64 LOG(WARNING) << "No input devices detected";
65
66 return has_input;
67 }
68
CreateTestAudioInputStream(AudioManager * audio_man)69 static AudioInputStream* CreateTestAudioInputStream(AudioManager* audio_man) {
70 AudioInputStream* ais = audio_man->MakeAudioInputStream(
71 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
72 kSamplingRate, 16, kSamplesPerPacket),
73 AudioManagerBase::kDefaultDeviceId);
74 EXPECT_TRUE(NULL != ais);
75 return ais;
76 }
77
78 // Test that AudioInputStream rejects out of range parameters.
TEST(AudioInputTest,SanityOnMakeParams)79 TEST(AudioInputTest, SanityOnMakeParams) {
80 scoped_ptr<AudioManager> audio_man(AudioManager::CreateForTesting());
81 if (!CanRunAudioTests(audio_man.get()))
82 return;
83
84 AudioParameters::Format fmt = AudioParameters::AUDIO_PCM_LINEAR;
85 EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
86 AudioParameters(fmt, CHANNEL_LAYOUT_7_1, 8000, 16,
87 kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
88 EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
89 AudioParameters(fmt, CHANNEL_LAYOUT_MONO, 1024 * 1024, 16,
90 kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
91 EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
92 AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, 8000, 80,
93 kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
94 EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
95 AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, 8000, 80,
96 1000 * kSamplesPerPacket),
97 AudioManagerBase::kDefaultDeviceId));
98 EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
99 AudioParameters(fmt, CHANNEL_LAYOUT_UNSUPPORTED, 8000, 16,
100 kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
101 EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
102 AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, -8000, 16,
103 kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
104 EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
105 AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, 8000, -16,
106 kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
107 EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
108 AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, 8000, 16, -1024),
109 AudioManagerBase::kDefaultDeviceId));
110 }
111
112 // Test create and close of an AudioInputStream without recording audio.
TEST(AudioInputTest,CreateAndClose)113 TEST(AudioInputTest, CreateAndClose) {
114 scoped_ptr<AudioManager> audio_man(AudioManager::CreateForTesting());
115 if (!CanRunAudioTests(audio_man.get()))
116 return;
117 AudioInputStream* ais = CreateTestAudioInputStream(audio_man.get());
118 ais->Close();
119 }
120
121 #if defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(ARCH_CPU_ARM_FAMILY)
122 // This test is failing on ARM linux: http://crbug.com/238490
123 #define MAYBE_OpenAndClose DISABLED_OpenAndClose
124 #else
125 #define MAYBE_OpenAndClose OpenAndClose
126 #endif
127 // Test create, open and close of an AudioInputStream without recording audio.
TEST(AudioInputTest,MAYBE_OpenAndClose)128 TEST(AudioInputTest, MAYBE_OpenAndClose) {
129 scoped_ptr<AudioManager> audio_man(AudioManager::CreateForTesting());
130 if (!CanRunAudioTests(audio_man.get()))
131 return;
132 AudioInputStream* ais = CreateTestAudioInputStream(audio_man.get());
133 EXPECT_TRUE(ais->Open());
134 ais->Close();
135 }
136
137 #if defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(ARCH_CPU_ARM_FAMILY)
138 // This test is failing on ARM linux: http://crbug.com/238490
139 #define MAYBE_OpenStopAndClose DISABLED_OpenStopAndClose
140 #else
141 #define MAYBE_OpenStopAndClose OpenStopAndClose
142 #endif
143 // Test create, open, stop and close of an AudioInputStream without recording.
TEST(AudioInputTest,MAYBE_OpenStopAndClose)144 TEST(AudioInputTest, MAYBE_OpenStopAndClose) {
145 scoped_ptr<AudioManager> audio_man(AudioManager::CreateForTesting());
146 if (!CanRunAudioTests(audio_man.get()))
147 return;
148 AudioInputStream* ais = CreateTestAudioInputStream(audio_man.get());
149 EXPECT_TRUE(ais->Open());
150 ais->Stop();
151 ais->Close();
152 }
153
154 #if defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(ARCH_CPU_ARM_FAMILY)
155 // This test is failing on ARM linux: http://crbug.com/238490
156 #define MAYBE_Record DISABLED_Record
157 #else
158 #define MAYBE_Record Record
159 #endif
160 // Test a normal recording sequence using an AudioInputStream.
TEST(AudioInputTest,MAYBE_Record)161 TEST(AudioInputTest, MAYBE_Record) {
162 scoped_ptr<AudioManager> audio_man(AudioManager::CreateForTesting());
163 if (!CanRunAudioTests(audio_man.get()))
164 return;
165 base::MessageLoop message_loop(base::MessageLoop::TYPE_DEFAULT);
166 AudioInputStream* ais = CreateTestAudioInputStream(audio_man.get());
167 EXPECT_TRUE(ais->Open());
168
169 TestInputCallback test_callback(kSamplesPerPacket * 4);
170 ais->Start(&test_callback);
171 // Verify at least 500ms worth of audio was recorded, after giving sufficient
172 // extra time.
173 message_loop.PostDelayedTask(
174 FROM_HERE,
175 base::MessageLoop::QuitClosure(),
176 base::TimeDelta::FromMilliseconds(690));
177 message_loop.Run();
178 EXPECT_GE(test_callback.callback_count(), 1);
179 EXPECT_FALSE(test_callback.had_error());
180
181 ais->Stop();
182 ais->Close();
183 }
184
185 } // namespace media
186