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| 1 // Copyright 2014 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 "components/copresence/mediums/audio/audio_player.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/memory/weak_ptr.h" | |
| 9 #include "components/copresence/mediums/audio/audio_player_impl.h" | |
| 10 #include "components/copresence/public/copresence_constants.h" | |
| 11 #include "components/copresence/test/audio_test_support.h" | |
| 12 #include "media/audio/audio_manager.h" | |
| 13 #include "media/audio/audio_manager_base.h" | |
| 14 #include "media/base/audio_bus.h" | |
| 15 #include "testing/gtest/include/gtest/gtest.h" | |
| 16 | |
| 17 namespace { | |
| 18 | |
| 19 class TestAudioOutputStream : public media::AudioOutputStream { | |
| 20 public: | |
| 21 using GatherSamplesCallback = | |
| 22 base::Callback<void(scoped_ptr<media::AudioBus>, int frames)>; | |
| 23 TestAudioOutputStream(int default_frame_count, | |
| 24 int max_frame_count, | |
| 25 GatherSamplesCallback gather_callback) | |
| 26 : default_frame_count_(default_frame_count), | |
| 27 max_frame_count_(max_frame_count), | |
| 28 gather_callback_(gather_callback), | |
| 29 callback_(nullptr) { | |
| 30 caller_loop_ = base::MessageLoop::current(); | |
| 31 } | |
| 32 | |
| 33 ~TestAudioOutputStream() override {} | |
| 34 | |
| 35 bool Open() override { return true; } | |
| 36 void Start(AudioSourceCallback* callback) override { | |
| 37 callback_ = callback; | |
| 38 GatherPlayedSamples(); | |
| 39 } | |
| 40 void Stop() override {} | |
| 41 void SetVolume(double volume) override {} | |
| 42 void GetVolume(double* volume) override {} | |
| 43 void Close() override {} | |
| 44 | |
| 45 private: | |
| 46 void GatherPlayedSamples() { | |
| 47 int frames = 0, total_frames = 0; | |
| 48 do { | |
| 49 // Call back into the player to get samples that it wants us to play. | |
| 50 scoped_ptr<media::AudioBus> dest = | |
| 51 media::AudioBus::Create(1, default_frame_count_); | |
| 52 frames = callback_->OnMoreData(dest.get(), 0); | |
| 53 total_frames += frames; | |
| 54 // Send the samples given to us by the player to the gather callback. | |
| 55 caller_loop_->PostTask( | |
| 56 FROM_HERE, base::Bind(gather_callback_, base::Passed(&dest), frames)); | |
| 57 } while (frames && total_frames < max_frame_count_); | |
| 58 } | |
| 59 | |
| 60 int default_frame_count_; | |
| 61 int max_frame_count_; | |
| 62 GatherSamplesCallback gather_callback_; | |
| 63 AudioSourceCallback* callback_; | |
| 64 base::MessageLoop* caller_loop_; | |
| 65 | |
| 66 DISALLOW_COPY_AND_ASSIGN(TestAudioOutputStream); | |
| 67 }; | |
| 68 | |
| 69 } // namespace | |
| 70 | |
| 71 namespace copresence { | |
| 72 | |
| 73 class AudioPlayerTest : public testing::Test, | |
| 74 public base::SupportsWeakPtr<AudioPlayerTest> { | |
| 75 public: | |
| 76 AudioPlayerTest() : buffer_index_(0), player_(nullptr) { | |
| 77 if (!media::AudioManager::Get()) | |
| 78 media::AudioManager::CreateForTesting(); | |
| 79 } | |
| 80 | |
| 81 ~AudioPlayerTest() override { DeletePlayer(); } | |
| 82 | |
| 83 void CreatePlayer() { | |
| 84 DeletePlayer(); | |
| 85 player_ = new AudioPlayerImpl(); | |
| 86 player_->set_output_stream_for_testing(new TestAudioOutputStream( | |
| 87 kDefaultFrameCount, | |
| 88 kMaxFrameCount, | |
| 89 base::Bind(&AudioPlayerTest::GatherSamples, AsWeakPtr()))); | |
| 90 player_->Initialize(); | |
| 91 } | |
| 92 | |
| 93 void DeletePlayer() { | |
| 94 if (!player_) | |
| 95 return; | |
| 96 player_->Finalize(); | |
| 97 player_ = nullptr; | |
| 98 } | |
| 99 | |
| 100 void PlayAndVerifySamples( | |
| 101 const scoped_refptr<media::AudioBusRefCounted>& samples) { | |
| 102 DCHECK_LT(samples->frames(), kMaxFrameCount); | |
| 103 | |
| 104 buffer_ = media::AudioBus::Create(1, kMaxFrameCount); | |
| 105 buffer_index_ = 0; | |
| 106 player_->Play(samples); | |
| 107 player_->FlushAudioLoopForTesting(); | |
| 108 player_->Stop(); | |
| 109 | |
| 110 int differences = 0; | |
| 111 for (int i = 0; i < kMaxFrameCount; ++i) { | |
| 112 differences += (buffer_->channel(0)[i] != | |
| 113 samples->channel(0)[i % samples->frames()]); | |
| 114 } | |
| 115 ASSERT_EQ(0, differences); | |
| 116 | |
| 117 buffer_.reset(); | |
| 118 } | |
| 119 | |
| 120 void GatherSamples(scoped_ptr<media::AudioBus> bus, int frames) { | |
| 121 if (!buffer_.get()) | |
| 122 return; | |
| 123 bus->CopyPartialFramesTo(0, frames, buffer_index_, buffer_.get()); | |
| 124 buffer_index_ += frames; | |
| 125 } | |
| 126 | |
| 127 protected: | |
| 128 bool IsPlaying() { | |
| 129 player_->FlushAudioLoopForTesting(); | |
| 130 return player_->is_playing_; | |
| 131 } | |
| 132 | |
| 133 static const int kDefaultFrameCount = 1024; | |
| 134 static const int kMaxFrameCount = 1024 * 100; | |
| 135 | |
| 136 scoped_ptr<media::AudioBus> buffer_; | |
| 137 int buffer_index_; | |
| 138 | |
| 139 // Deleted by calling Finalize() on the object. | |
| 140 AudioPlayerImpl* player_; | |
| 141 base::MessageLoop message_loop_; | |
| 142 }; | |
| 143 | |
| 144 TEST_F(AudioPlayerTest, BasicPlayAndStop) { | |
| 145 CreatePlayer(); | |
| 146 scoped_refptr<media::AudioBusRefCounted> samples = | |
| 147 media::AudioBusRefCounted::Create(1, 7331); | |
| 148 | |
| 149 player_->Play(samples); | |
| 150 EXPECT_TRUE(IsPlaying()); | |
| 151 player_->Stop(); | |
| 152 EXPECT_FALSE(IsPlaying()); | |
| 153 player_->Play(samples); | |
| 154 | |
| 155 EXPECT_TRUE(IsPlaying()); | |
| 156 player_->Stop(); | |
| 157 EXPECT_FALSE(IsPlaying()); | |
| 158 player_->Play(samples); | |
| 159 | |
| 160 EXPECT_TRUE(IsPlaying()); | |
| 161 player_->Stop(); | |
| 162 EXPECT_FALSE(IsPlaying()); | |
| 163 | |
| 164 DeletePlayer(); | |
| 165 } | |
| 166 | |
| 167 TEST_F(AudioPlayerTest, OutOfOrderPlayAndStopMultiple) { | |
| 168 CreatePlayer(); | |
| 169 scoped_refptr<media::AudioBusRefCounted> samples = | |
| 170 media::AudioBusRefCounted::Create(1, 1337); | |
| 171 | |
| 172 player_->Stop(); | |
| 173 player_->Stop(); | |
| 174 player_->Stop(); | |
| 175 EXPECT_FALSE(IsPlaying()); | |
| 176 | |
| 177 player_->Play(samples); | |
| 178 player_->Play(samples); | |
| 179 EXPECT_TRUE(IsPlaying()); | |
| 180 | |
| 181 player_->Stop(); | |
| 182 player_->Stop(); | |
| 183 EXPECT_FALSE(IsPlaying()); | |
| 184 | |
| 185 DeletePlayer(); | |
| 186 } | |
| 187 | |
| 188 TEST_F(AudioPlayerTest, PlayingEndToEnd) { | |
| 189 const int kNumSamples = kDefaultFrameCount * 7 + 321; | |
| 190 CreatePlayer(); | |
| 191 | |
| 192 PlayAndVerifySamples(CreateRandomAudioRefCounted(0x1337, 1, kNumSamples)); | |
| 193 | |
| 194 DeletePlayer(); | |
| 195 } | |
| 196 | |
| 197 TEST_F(AudioPlayerTest, PlayingEndToEndRepeated) { | |
| 198 const int kNumSamples = kDefaultFrameCount * 7 + 537; | |
| 199 CreatePlayer(); | |
| 200 | |
| 201 PlayAndVerifySamples(CreateRandomAudioRefCounted(0x1337, 1, kNumSamples)); | |
| 202 | |
| 203 PlayAndVerifySamples( | |
| 204 CreateRandomAudioRefCounted(0x7331, 1, kNumSamples - 3123)); | |
| 205 | |
| 206 PlayAndVerifySamples(CreateRandomAudioRefCounted(0xf00d, 1, kNumSamples * 2)); | |
| 207 | |
| 208 DeletePlayer(); | |
| 209 } | |
| 210 | |
| 211 } // namespace copresence | |
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Chromium Code Reviews
Issue 865483005:
Creating the audio_modem component (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master