Remove the AudioManager singleton.

media/audio/win/audio_output_win_unittest.cc

 // Copyright (c) 2011 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 <windows.h>
 #include <mmsystem.h>
 
 #include "base/basictypes.h"
 #include "base/base_paths.h"
 #include "base/file_util.h"
@@ skipping 181 matching lines @@
 
  private:
   HANDLE fmap_;
   char* start_;
   uint32 size_;
 };
 
 // ============================================================================
 // Validate that the AudioManager::AUDIO_MOCK callbacks work.
 TEST(WinAudioTest, MockStreamBasicCallbacks) {
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_MOCK, CHANNEL_LAYOUT_STEREO, 8000,
                       8, 128));
   ASSERT_TRUE(NULL != oas);
   EXPECT_TRUE(oas->Open());
   TestSourceBasic source;
   oas->Start(&source);
   EXPECT_GT(source.callback_count(), 0);
   oas->Stop();
   oas->Close();
   EXPECT_EQ(0, source.had_error());
 }
 
 // ===========================================================================
 // Validation of AudioManager::AUDIO_PCM_LINEAR
 //
 // The tests tend to fail in the build bots when somebody connects to them via
 // via remote-desktop because it installs an audio device that fails to open
 // at some point, possibly when the connection goes idle. So that is why we
 // skipped them in headless mode.
 
 // Test that can it be created and closed.
 TEST(WinAudioTest, PCMWaveStreamGetAndClose) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
                       8000, 16, 256));
   ASSERT_TRUE(NULL != oas);
   oas->Close();
 }
 
 // Test that can it be cannot be created with invalid parameters.
 TEST(WinAudioTest, SanityOnMakeParams) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
   AudioParameters::Format fmt = AudioParameters::AUDIO_PCM_LINEAR;
   EXPECT_TRUE(NULL == audio_man->MakeAudioOutputStream(
       AudioParameters(fmt, CHANNEL_LAYOUT_UNSUPPORTED, 8000, 16, 256)));
   EXPECT_TRUE(NULL == audio_man->MakeAudioOutputStream(
       AudioParameters(fmt, CHANNEL_LAYOUT_MONO, 1024 * 1024, 16, 256)));
   EXPECT_TRUE(NULL == audio_man->MakeAudioOutputStream(
       AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, 8000, 80, 256)));
   EXPECT_TRUE(NULL == audio_man->MakeAudioOutputStream(
       AudioParameters(fmt, CHANNEL_LAYOUT_UNSUPPORTED, 8000, 16, 256)));
   EXPECT_TRUE(NULL == audio_man->MakeAudioOutputStream(
       AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, -8000, 16, 256)));
   EXPECT_TRUE(NULL == audio_man->MakeAudioOutputStream(
       AudioParameters(fmt, CHANNEL_LAYOUT_MONO, 8000, 16, -100)));
   EXPECT_TRUE(NULL == audio_man->MakeAudioOutputStream(
       AudioParameters(fmt, CHANNEL_LAYOUT_MONO, 8000, 16, 0)));
   EXPECT_TRUE(NULL == audio_man->MakeAudioOutputStream(
       AudioParameters(fmt, CHANNEL_LAYOUT_MONO, 8000, 16,
                       media::Limits::kMaxSamplesPerPacket + 1)));
 }
 
 // Test that it can be opened and closed.
 TEST(WinAudioTest, PCMWaveStreamOpenAndClose) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
                       8000, 16, 256));
   ASSERT_TRUE(NULL != oas);
   EXPECT_TRUE(oas->Open());
   oas->Close();
 }
 
 // Test that it has a maximum packet size.
 TEST(WinAudioTest, PCMWaveStreamOpenLimit) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
                       8000, 16, 1024 * 1024 * 1024));
   EXPECT_TRUE(NULL == oas);
   if (oas)
     oas->Close();
 }
 
 // Test that it uses the triple buffers correctly. Because it uses the actual
 // audio device, you might hear a short pop noise for a short time.
 TEST(WinAudioTest, PCMWaveStreamTripleBuffer) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
                       16000, 16, 256));
   ASSERT_TRUE(NULL != oas);
   TestSourceTripleBuffer test_triple_buffer;
   EXPECT_TRUE(oas->Open());
   oas->Start(&test_triple_buffer);
   ::Sleep(300);
   EXPECT_GT(test_triple_buffer.callback_count(), kNumBuffers);
   EXPECT_FALSE(test_triple_buffer.had_error());
   oas->Stop();
   ::Sleep(500);
   oas->Close();
 }
 
 // Test potential deadlock situation if the source is slow or blocks for some
 // time. The actual EXPECT_GT are mostly meaningless and the real test is that
 // the test completes in reasonable time.
 TEST(WinAudioTest, PCMWaveSlowSource) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
                       16000, 16, 256));
   ASSERT_TRUE(NULL != oas);
   TestSourceLaggy test_laggy(2, 90);
   EXPECT_TRUE(oas->Open());
   // The test parameters cause a callback every 32 ms and the source is
   // sleeping for 90 ms, so it is guaranteed that we run out of ready buffers.
   oas->Start(&test_laggy);
   ::Sleep(500);
   EXPECT_GT(test_laggy.callback_count(), 2);
   EXPECT_FALSE(test_laggy.had_error());
   oas->Stop();
   ::Sleep(500);
   oas->Close();
 }
 
 // Test another potential deadlock situation if the thread that calls Start()
 // gets paused. This test is best when run over RDP with audio enabled. See
 // bug 19276 for more details.
 TEST(WinAudioTest, PCMWaveStreamPlaySlowLoop) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
   uint32 samples_100_ms = AudioParameters::kAudioCDSampleRate / 10;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
                       AudioParameters::kAudioCDSampleRate, 16, samples_100_ms));
   ASSERT_TRUE(NULL != oas);
 
   SineWaveAudioSource source(SineWaveAudioSource::FORMAT_16BIT_LINEAR_PCM, 1,
                              200.0, AudioParameters::kAudioCDSampleRate);
 
   EXPECT_TRUE(oas->Open());
   oas->SetVolume(1.0);
 
   for (int ix = 0; ix != 5; ++ix) {
     oas->Start(&source);
     ::Sleep(10);
     oas->Stop();
   }
   oas->Close();
 }
 
 
 // This test produces actual audio for .5 seconds on the default wave
 // device at 44.1K s/sec. Parameters have been chosen carefully so you should
 // not hear pops or noises while the sound is playing.
 TEST(WinAudioTest, PCMWaveStreamPlay200HzTone44Kss) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
   uint32 samples_100_ms = AudioParameters::kAudioCDSampleRate / 10;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
                       AudioParameters::kAudioCDSampleRate, 16, samples_100_ms));
   ASSERT_TRUE(NULL != oas);
 
   SineWaveAudioSource source(SineWaveAudioSource::FORMAT_16BIT_LINEAR_PCM, 1,
                              200.0, AudioParameters::kAudioCDSampleRate);
 
   EXPECT_TRUE(oas->Open());
   oas->SetVolume(1.0);
   oas->Start(&source);
   ::Sleep(500);
   oas->Stop();
   oas->Close();
 }
 
 // This test produces actual audio for for .5 seconds on the default wave
 // device at 22K s/sec. Parameters have been chosen carefully so you should
 // not hear pops or noises while the sound is playing. The audio also should
 // sound with a lower volume than PCMWaveStreamPlay200HzTone44Kss.
 TEST(WinAudioTest, PCMWaveStreamPlay200HzTone22Kss) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
   uint32 samples_100_ms = AudioParameters::kAudioCDSampleRate / 20;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
                       AudioParameters::kAudioCDSampleRate / 2, 16,
                       samples_100_ms));
   ASSERT_TRUE(NULL != oas);
 
   SineWaveAudioSource source(SineWaveAudioSource::FORMAT_16BIT_LINEAR_PCM, 1,
@@ skipping 25 matching lines @@
   // Open sweep02_16b_mono_16KHz.raw which has no format. It contains the
   // raw 16 bit samples for a single channel in little-endian format. The
   // creation sample rate is 16KHz.
   FilePath audio_file;
   ASSERT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &audio_file));
   audio_file = audio_file.Append(kAudioFile1_16b_m_16K);
   // Map the entire file in memory.
   ReadOnlyMappedFile file_reader(audio_file.value().c_str());
   ASSERT_TRUE(file_reader.is_valid());
 
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
 
   // Compute buffer size for 100ms of audio.
   const uint32 kSamples100ms = (16000 / 1000) * 100;
   const uint32 kSize100ms = kSamples100ms * 2;
 
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
                       16000, 16, kSamples100ms));
@@ skipping 26 matching lines @@
   oas->Stop();
   oas->Close();
 }
 
 // This test is to make sure an AudioOutputStream can be started after it was
 // stopped. You will here two .5 seconds wave signal separated by 0.5 seconds
 // of silence.
 TEST(WinAudioTest, PCMWaveStreamPlayTwice200HzTone44Kss) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
 
   uint32 samples_100_ms = AudioParameters::kAudioCDSampleRate / 10;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
                       AudioParameters::kAudioCDSampleRate, 16, samples_100_ms));
   ASSERT_TRUE(NULL != oas);
 
   SineWaveAudioSource source(SineWaveAudioSource::FORMAT_16BIT_LINEAR_PCM, 1,
@@ skipping 16 matching lines @@
 
   oas->Close();
 }
 
 // With the low latency mode, WASAPI is utilized by default for Vista and
 // higher and Wave is used for XP and lower. It is possible to utilize a
 // smaller buffer size for WASAPI than for Wave.
 TEST(WinAudioTest, PCMWaveStreamPlay200HzToneLowLatency) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
 
   // The WASAPI API requires a correct COM environment.
   ScopedCOMInitializer com_init(ScopedCOMInitializer::kMTA);
 
   // Use 10 ms buffer size for WASAPI and 50 ms buffer size for Wave.
   // Take the existing native sample rate into account.
   int sample_rate = static_cast<int>(media::GetAudioHardwareSampleRate());
   uint32 samples_10_ms = sample_rate / 100;
   int n = 1;
   (base::win::GetVersion() <= base::win::VERSION_XP) ? n = 5 : n = 1;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
                       CHANNEL_LAYOUT_MONO, sample_rate,
                       16, n * samples_10_ms));
   ASSERT_TRUE(NULL != oas);
 
   SineWaveAudioSource source(SineWaveAudioSource::FORMAT_16BIT_LINEAR_PCM, 1,
                              200.0, sample_rate);
 
-  EXPECT_TRUE(oas->Open());
-  oas->SetVolume(1.0);
 
-  // Play the wave for .8 seconds.
-  oas->Start(&source);
-  ::Sleep(800);
-  oas->Stop();
+  bool opened;
+  EXPECT_TRUE(opened = oas->Open());
+  if (opened) {
+    oas->SetVolume(1.0);
+
+    // Play the wave for .8 seconds.
+    oas->Start(&source);
+    ::Sleep(800);
+    oas->Stop();
+  }
   oas->Close();
 }
 
 // Check that the pending bytes value is correct what the stream starts.
 TEST(WinAudioTest, PCMWaveStreamPendingBytes) {
   if (IsRunningHeadless())
     return;
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
 
   uint32 samples_100_ms = AudioParameters::kAudioCDSampleRate / 10;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
                       AudioParameters::kAudioCDSampleRate, 16, samples_100_ms));
   ASSERT_TRUE(NULL != oas);
 
   NiceMock<MockAudioSource> source;
@@ skipping 76 matching lines @@
 // This thread provides the data that the SyncSocketSource above needs
 // using the other end of a SyncSocket. The protocol is as follows:
 //
 // SyncSocketSource ---send 4 bytes ------------> SyncSocketThread
 //                  <--- audio packet ----------
 //
 DWORD __stdcall SyncSocketThread(void* context) {
   SyncThreadContext& ctx = *(reinterpret_cast<SyncThreadContext*>(context));
 
   const int kTwoSecBytes =
-      AudioParameters::kAudioCDSampleRate * 2 * sizeof(uint16);
+      AudioParameters::kAudioCDSampleRate * 2 * sizeof(uint16);  // NOLINT
   uint8* buffer = new uint8[kTwoSecBytes];
   SineWaveAudioSource sine(SineWaveAudioSource::FORMAT_16BIT_LINEAR_PCM,
                            1, ctx.sine_freq, ctx.sample_rate);
   sine.OnMoreData(NULL, buffer, kTwoSecBytes, AudioBuffersState());
 
   AudioBuffersState buffers_state;
   int times = 0;
   for (int ix = 0; ix < kTwoSecBytes; ix += ctx.packet_size_bytes) {
     if (ctx.socket->Receive(&buffers_state, sizeof(buffers_state)) == 0)
       break;
@@ skipping 11 matching lines @@
 // layer using a source based on SyncSocket. In a real situation we would
 // go for the low-latency version in combination with SyncSocket, but to keep
 // the test more simple, AUDIO_PCM_LINEAR is utilized instead. The main
 // principle of the test still remains and we avoid the additional complexity
 // related to the two different audio-layers for AUDIO_PCM_LOW_LATENCY.
 // In this test you should hear a continuous 200Hz tone for 2 seconds.
 TEST(WinAudioTest, SyncSocketBasic) {
   if (IsRunningHeadless())
     return;
 
-  AudioManager* audio_man = AudioManager::GetAudioManager();
-  ASSERT_TRUE(NULL != audio_man);
+  scoped_refptr<AudioManager> audio_man(AudioManager::Create());
   if (!audio_man->HasAudioOutputDevices())
     return;
 
   int sample_rate = AudioParameters::kAudioCDSampleRate;
   const uint32 kSamples20ms = sample_rate / 50;
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(
       AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
                       CHANNEL_LAYOUT_MONO, sample_rate, 16, kSamples20ms));
   ASSERT_TRUE(NULL != oas);
 
@@ skipping 15 matching lines @@
 
   oas->Start(&source);
 
   ::WaitForSingleObject(thread, INFINITE);
   ::CloseHandle(thread);
   delete sockets[1];
 
   oas->Stop();
   oas->Close();
 }