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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "media/audio/audio_io.h" | 5 #include "media/audio/audio_io.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 #include <objbase.h> // This has to be before initguid.h | 8 #include <objbase.h> // This has to be before initguid.h |
9 #include <initguid.h> | 9 #include <initguid.h> |
10 #include <mmsystem.h> | 10 #include <mmsystem.h> |
11 #include <setupapi.h> | 11 #include <setupapi.h> |
12 | 12 |
13 #include "base/basictypes.h" | 13 #include "base/basictypes.h" |
14 #include "base/command_line.h" | 14 #include "base/command_line.h" |
15 #include "base/file_path.h" | 15 #include "base/file_path.h" |
16 #include "base/memory/scoped_ptr.h" | 16 #include "base/memory/scoped_ptr.h" |
17 #include "base/path_service.h" | 17 #include "base/path_service.h" |
18 #include "base/process_util.h" | 18 #include "base/process_util.h" |
19 #include "base/string_number_conversions.h" | 19 #include "base/string_number_conversions.h" |
20 #include "base/string_util.h" | 20 #include "base/string_util.h" |
21 #include "base/win/windows_version.h" | 21 #include "base/win/windows_version.h" |
22 #include "media/audio/fake_audio_input_stream.h" | 22 #include "media/audio/fake_audio_input_stream.h" |
23 #include "media/audio/fake_audio_output_stream.h" | 23 #include "media/audio/fake_audio_output_stream.h" |
24 #include "media/audio/win/audio_low_latency_input_win.h" | 24 #include "media/audio/win/audio_low_latency_input_win.h" |
| 25 #include "media/audio/win/audio_low_latency_output_win.h" |
25 #include "media/audio/win/audio_manager_win.h" | 26 #include "media/audio/win/audio_manager_win.h" |
26 #include "media/audio/win/wavein_input_win.h" | 27 #include "media/audio/win/wavein_input_win.h" |
27 #include "media/audio/win/waveout_output_win.h" | 28 #include "media/audio/win/waveout_output_win.h" |
28 #include "media/base/limits.h" | 29 #include "media/base/limits.h" |
29 | 30 |
30 // Libraries required for the SetupAPI and Wbem APIs used here. | 31 // Libraries required for the SetupAPI and Wbem APIs used here. |
31 #pragma comment(lib, "setupapi.lib") | 32 #pragma comment(lib, "setupapi.lib") |
32 | 33 |
33 // The following are defined in various DDK headers, and we (re)define them | 34 // The following are defined in various DDK headers, and we (re)define them |
34 // here to avoid adding the DDK as a chrome dependency. | 35 // here to avoid adding the DDK as a chrome dependency. |
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106 bool AudioManagerWin::HasAudioOutputDevices() { | 107 bool AudioManagerWin::HasAudioOutputDevices() { |
107 return (::waveOutGetNumDevs() != 0); | 108 return (::waveOutGetNumDevs() != 0); |
108 } | 109 } |
109 | 110 |
110 bool AudioManagerWin::HasAudioInputDevices() { | 111 bool AudioManagerWin::HasAudioInputDevices() { |
111 return (::waveInGetNumDevs() != 0); | 112 return (::waveInGetNumDevs() != 0); |
112 } | 113 } |
113 | 114 |
114 // Factory for the implementations of AudioOutputStream. Two implementations | 115 // Factory for the implementations of AudioOutputStream. Two implementations |
115 // should suffice most windows user's needs. | 116 // should suffice most windows user's needs. |
116 // - PCMWaveOutAudioOutputStream: Based on the waveOutWrite API (in progress) | 117 // - PCMWaveOutAudioOutputStream: Based on the waveOut API. |
117 // - PCMDXSoundAudioOutputStream: Based on DirectSound or XAudio (future work). | 118 // - WASAPIAudioOutputStream: Based on Core Audio (WASAPI) API. |
118 AudioOutputStream* AudioManagerWin::MakeAudioOutputStream( | 119 AudioOutputStream* AudioManagerWin::MakeAudioOutputStream( |
119 const AudioParameters& params) { | 120 const AudioParameters& params) { |
120 if (!params.IsValid() || (params.channels > kWinMaxChannels)) | 121 if (!params.IsValid() || (params.channels > kWinMaxChannels)) |
121 return NULL; | 122 return NULL; |
122 | 123 |
123 // Limit the number of audio streams opened. | 124 // Limit the number of audio streams opened. |
124 if (num_output_streams_ >= kMaxOutputStreams) { | 125 if (num_output_streams_ >= kMaxOutputStreams) { |
125 return NULL; | 126 return NULL; |
126 } | 127 } |
127 | 128 |
128 if (params.format == AudioParameters::AUDIO_MOCK) { | 129 if (params.format == AudioParameters::AUDIO_MOCK) { |
129 return FakeAudioOutputStream::MakeFakeStream(params); | 130 return FakeAudioOutputStream::MakeFakeStream(params); |
130 } else if (params.format == AudioParameters::AUDIO_PCM_LINEAR) { | 131 } else if (params.format == AudioParameters::AUDIO_PCM_LINEAR) { |
131 num_output_streams_++; | 132 num_output_streams_++; |
132 return new PCMWaveOutAudioOutputStream(this, params, 3, WAVE_MAPPER); | 133 return new PCMWaveOutAudioOutputStream(this, params, 3, WAVE_MAPPER); |
133 } else if (params.format == AudioParameters::AUDIO_PCM_LOW_LATENCY) { | 134 } else if (params.format == AudioParameters::AUDIO_PCM_LOW_LATENCY) { |
134 num_output_streams_++; | 135 num_output_streams_++; |
135 // TODO(cpu): waveout cannot hit 20ms latency. Use other method. | 136 if (base::win::GetVersion() <= base::win::VERSION_XP) { |
136 return new PCMWaveOutAudioOutputStream(this, params, 2, WAVE_MAPPER); | 137 // Fall back to Windows Wave implementation on Windows XP or lower. |
| 138 DLOG(INFO) << "Using WaveOut since WASAPI requires at least Vista."; |
| 139 return new PCMWaveOutAudioOutputStream(this, params, 2, WAVE_MAPPER); |
| 140 } else { |
| 141 // TODO(henrika): improve possibility to specify audio endpoint. |
| 142 // Use the default device (same as for Wave) for now to be compatible. |
| 143 return new WASAPIAudioOutputStream(this, params, eConsole); |
| 144 } |
137 } | 145 } |
138 return NULL; | 146 return NULL; |
139 } | 147 } |
140 | 148 |
141 // Factory for the implementations of AudioInputStream. | 149 // Factory for the implementations of AudioInputStream. |
142 AudioInputStream* AudioManagerWin::MakeAudioInputStream( | 150 AudioInputStream* AudioManagerWin::MakeAudioInputStream( |
143 const AudioParameters& params) { | 151 const AudioParameters& params) { |
144 if (!params.IsValid() || (params.channels > kWinMaxInputChannels)) | 152 if (!params.IsValid() || (params.channels > kWinMaxInputChannels)) |
145 return NULL; | 153 return NULL; |
146 | 154 |
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157 WAVE_MAPPER); | 165 WAVE_MAPPER); |
158 } else { | 166 } else { |
159 // TODO(henrika): improve possibility to specify audio endpoint. | 167 // TODO(henrika): improve possibility to specify audio endpoint. |
160 // Use the default device (same as for Wave) for now to be compatible. | 168 // Use the default device (same as for Wave) for now to be compatible. |
161 return new WASAPIAudioInputStream(this, params, eConsole); | 169 return new WASAPIAudioInputStream(this, params, eConsole); |
162 } | 170 } |
163 } | 171 } |
164 return NULL; | 172 return NULL; |
165 } | 173 } |
166 | 174 |
167 void AudioManagerWin::ReleaseOutputStream(PCMWaveOutAudioOutputStream* stream) { | 175 void AudioManagerWin::ReleaseOutputStream(AudioOutputStream* stream) { |
168 DCHECK(stream); | 176 DCHECK(stream); |
169 num_output_streams_--; | 177 num_output_streams_--; |
170 delete stream; | 178 delete stream; |
171 } | 179 } |
172 | 180 |
173 void AudioManagerWin::ReleaseInputStream(AudioInputStream* stream) { | 181 void AudioManagerWin::ReleaseInputStream(AudioInputStream* stream) { |
174 delete stream; | 182 delete stream; |
175 } | 183 } |
176 | 184 |
177 void AudioManagerWin::MuteAll() { | 185 void AudioManagerWin::MuteAll() { |
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276 name.device_name = AudioManagerBase::kDefaultDeviceName; | 284 name.device_name = AudioManagerBase::kDefaultDeviceName; |
277 name.unique_id = "0"; | 285 name.unique_id = "0"; |
278 device_names->push_back(name); | 286 device_names->push_back(name); |
279 } | 287 } |
280 } | 288 } |
281 | 289 |
282 // static | 290 // static |
283 AudioManager* AudioManager::CreateAudioManager() { | 291 AudioManager* AudioManager::CreateAudioManager() { |
284 return new AudioManagerWin(); | 292 return new AudioManagerWin(); |
285 } | 293 } |
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