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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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/linux/audio_manager_linux.h" | 5 #include "media/audio/linux/audio_manager_linux.h" |
6 | 6 |
7 #include "base/command_line.h" | 7 #include "base/command_line.h" |
8 #include "base/environment.h" | 8 #include "base/environment.h" |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/nix/xdg_util.h" | 10 #include "base/nix/xdg_util.h" |
11 #include "base/process_util.h" | 11 #include "base/process_util.h" |
12 #include "base/stl_util.h" | 12 #include "base/stl_util.h" |
13 #include "media/audio/audio_output_dispatcher.h" | 13 #include "media/audio/audio_output_dispatcher.h" |
14 #include "media/audio/audio_util.h" | 14 #include "media/audio/audio_util.h" |
15 #include "media/audio/linux/alsa_input.h" | 15 #include "media/audio/linux/alsa_input.h" |
16 #include "media/audio/linux/alsa_output.h" | 16 #include "media/audio/linux/alsa_output.h" |
17 #include "media/audio/linux/alsa_wrapper.h" | 17 #include "media/audio/linux/alsa_wrapper.h" |
18 #if defined(USE_PULSEAUDIO) | 18 #if defined(USE_PULSEAUDIO) |
19 #include "media/audio/pulse/pulse_output.h" | 19 #include "media/audio/pulse/audio_manager_pulse.h" |
20 #endif | 20 #endif |
21 #if defined(USE_CRAS) | 21 #if defined(USE_CRAS) |
22 #include "media/audio/linux/cras_input.h" | 22 #include "media/audio/linux/cras_input.h" |
23 #include "media/audio/linux/cras_output.h" | 23 #include "media/audio/linux/cras_output.h" |
24 #endif | 24 #endif |
25 #include "media/base/limits.h" | 25 #include "media/base/limits.h" |
26 #include "media/base/media_switches.h" | 26 #include "media/base/media_switches.h" |
27 | 27 |
28 namespace media { | 28 namespace media { |
29 | 29 |
(...skipping 248 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
278 } | 278 } |
279 | 279 |
280 AudioOutputStream* AudioManagerLinux::MakeOutputStream( | 280 AudioOutputStream* AudioManagerLinux::MakeOutputStream( |
281 const AudioParameters& params) { | 281 const AudioParameters& params) { |
282 #if defined(USE_CRAS) | 282 #if defined(USE_CRAS) |
283 if (UseCras()) { | 283 if (UseCras()) { |
284 return new CrasOutputStream(params, this); | 284 return new CrasOutputStream(params, this); |
285 } | 285 } |
286 #endif | 286 #endif |
287 | 287 |
288 #if defined(USE_PULSEAUDIO) | |
289 if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kUsePulseAudio)) { | |
290 return new PulseAudioOutputStream(params, this); | |
291 } | |
292 #endif | |
293 | |
294 std::string device_name = AlsaPcmOutputStream::kAutoSelectDevice; | 288 std::string device_name = AlsaPcmOutputStream::kAutoSelectDevice; |
295 if (CommandLine::ForCurrentProcess()->HasSwitch( | 289 if (CommandLine::ForCurrentProcess()->HasSwitch( |
296 switches::kAlsaOutputDevice)) { | 290 switches::kAlsaOutputDevice)) { |
297 device_name = CommandLine::ForCurrentProcess()->GetSwitchValueASCII( | 291 device_name = CommandLine::ForCurrentProcess()->GetSwitchValueASCII( |
298 switches::kAlsaOutputDevice); | 292 switches::kAlsaOutputDevice); |
299 } | 293 } |
300 return new AlsaPcmOutputStream(device_name, params, wrapper_.get(), this); | 294 return new AlsaPcmOutputStream(device_name, params, wrapper_.get(), this); |
301 } | 295 } |
302 | 296 |
303 AudioInputStream* AudioManagerLinux::MakeInputStream( | 297 AudioInputStream* AudioManagerLinux::MakeInputStream( |
304 const AudioParameters& params, const std::string& device_id) { | 298 const AudioParameters& params, const std::string& device_id) { |
305 #if defined(USE_CRAS) | 299 #if defined(USE_CRAS) |
306 if (UseCras()) { | 300 if (UseCras()) { |
307 return new CrasInputStream(params, this); | 301 return new CrasInputStream(params, this); |
308 } | 302 } |
309 #endif | 303 #endif |
310 | 304 |
311 std::string device_name = (device_id == AudioManagerBase::kDefaultDeviceId) ? | 305 std::string device_name = (device_id == AudioManagerBase::kDefaultDeviceId) ? |
312 AlsaPcmInputStream::kAutoSelectDevice : device_id; | 306 AlsaPcmInputStream::kAutoSelectDevice : device_id; |
313 if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kAlsaInputDevice)) { | 307 if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kAlsaInputDevice)) { |
314 device_name = CommandLine::ForCurrentProcess()->GetSwitchValueASCII( | 308 device_name = CommandLine::ForCurrentProcess()->GetSwitchValueASCII( |
315 switches::kAlsaInputDevice); | 309 switches::kAlsaInputDevice); |
316 } | 310 } |
317 | 311 |
318 return new AlsaPcmInputStream(this, device_name, params, wrapper_.get()); | 312 return new AlsaPcmInputStream(this, device_name, params, wrapper_.get()); |
319 } | 313 } |
320 | 314 |
321 AudioManager* CreateAudioManager() { | 315 AudioManager* CreateAudioManager() { |
| 316 #if defined(USE_PULSEAUDIO) |
| 317 if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kUsePulseAudio)) { |
| 318 AudioManager* manager = AudioManagerPulse::Create(); |
| 319 if (manager) |
| 320 return manager; |
| 321 } |
| 322 #endif |
| 323 |
322 return new AudioManagerLinux(); | 324 return new AudioManagerLinux(); |
323 } | 325 } |
324 | 326 |
325 AudioParameters AudioManagerLinux::GetPreferredLowLatencyOutputStreamParameters( | 327 AudioParameters AudioManagerLinux::GetPreferredLowLatencyOutputStreamParameters( |
326 const AudioParameters& input_params) { | 328 const AudioParameters& input_params) { |
327 // Since Linux doesn't actually have a low latency path the hardware buffer | 329 // Since Linux doesn't actually have a low latency path the hardware buffer |
328 // size is quite large in order to prevent glitches with general usage. Some | 330 // size is quite large in order to prevent glitches with general usage. Some |
329 // clients, such as WebRTC, have a more limited use case and work acceptably | 331 // clients, such as WebRTC, have a more limited use case and work acceptably |
330 // with a smaller buffer size. The check below allows clients which want to | 332 // with a smaller buffer size. The check below allows clients which want to |
331 // try a smaller buffer size on Linux to do so. | 333 // try a smaller buffer size on Linux to do so. |
332 int buffer_size = GetAudioHardwareBufferSize(); | 334 int buffer_size = GetAudioHardwareBufferSize(); |
333 if (input_params.frames_per_buffer() < buffer_size) | 335 if (input_params.frames_per_buffer() < buffer_size) |
334 buffer_size = input_params.frames_per_buffer(); | 336 buffer_size = input_params.frames_per_buffer(); |
335 | 337 |
336 // TODO(dalecurtis): This should include bits per channel and channel layout | 338 // TODO(dalecurtis): This should include bits per channel and channel layout |
337 // eventually. | 339 // eventually. |
338 return AudioParameters( | 340 return AudioParameters( |
339 AudioParameters::AUDIO_PCM_LOW_LATENCY, input_params.channel_layout(), | 341 AudioParameters::AUDIO_PCM_LOW_LATENCY, input_params.channel_layout(), |
340 input_params.sample_rate(), 16, buffer_size); | 342 input_params.sample_rate(), 16, buffer_size); |
341 } | 343 } |
342 | 344 |
343 } // namespace media | 345 } // namespace media |
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