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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "content/renderer/media/media_stream_audio_processor.h" | 5 #include "content/renderer/media/media_stream_audio_processor.h" |
6 | 6 |
7 #include "base/command_line.h" | 7 #include "base/command_line.h" |
8 #include "base/debug/trace_event.h" | 8 #include "base/debug/trace_event.h" |
9 #include "base/metrics/field_trial.h" | 9 #include "base/metrics/field_trial.h" |
10 #include "content/public/common/content_switches.h" | 10 #include "content/public/common/content_switches.h" |
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258 void MediaStreamAudioProcessor::GetStats(AudioProcessorStats* stats) { | 258 void MediaStreamAudioProcessor::GetStats(AudioProcessorStats* stats) { |
259 stats->typing_noise_detected = | 259 stats->typing_noise_detected = |
260 (base::subtle::Acquire_Load(&typing_detected_) != false); | 260 (base::subtle::Acquire_Load(&typing_detected_) != false); |
261 GetAecStats(audio_processing_.get(), stats); | 261 GetAecStats(audio_processing_.get(), stats); |
262 } | 262 } |
263 | 263 |
264 void MediaStreamAudioProcessor::InitializeAudioProcessingModule( | 264 void MediaStreamAudioProcessor::InitializeAudioProcessingModule( |
265 const blink::WebMediaConstraints& constraints, int effects, | 265 const blink::WebMediaConstraints& constraints, int effects, |
266 MediaStreamType type) { | 266 MediaStreamType type) { |
267 DCHECK(!audio_processing_); | 267 DCHECK(!audio_processing_); |
268 const std::string group_name = | 268 if (!IsAudioTrackProcessingEnabled()) |
269 base::FieldTrialList::FindFullName("MediaStreamAudioTrackProcessing"); | |
270 if (!CommandLine::ForCurrentProcess()->HasSwitch( | |
271 switches::kEnableAudioTrackProcessing) && | |
272 group_name != "Enabled") { | |
273 return; | 269 return; |
274 } | |
275 | 270 |
276 RTCMediaConstraints native_constraints(constraints); | 271 RTCMediaConstraints native_constraints(constraints); |
277 | 272 |
278 // Only apply the fixed constraints for gUM of MEDIA_DEVICE_AUDIO_CAPTURE. | 273 // Only apply the fixed constraints for gUM of MEDIA_DEVICE_AUDIO_CAPTURE. |
279 DCHECK(IsAudioMediaType(type)); | 274 DCHECK(IsAudioMediaType(type)); |
280 if (type == MEDIA_DEVICE_AUDIO_CAPTURE) | 275 if (type == MEDIA_DEVICE_AUDIO_CAPTURE) |
281 ApplyFixedAudioConstraints(&native_constraints); | 276 ApplyFixedAudioConstraints(&native_constraints); |
282 | 277 |
283 if (effects & media::AudioParameters::ECHO_CANCELLER) { | 278 if (effects & media::AudioParameters::ECHO_CANCELLER) { |
284 // If platform echo canceller is enabled, disable the software AEC. | 279 // If platform echo canceller is enabled, disable the software AEC. |
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485 return; | 480 return; |
486 | 481 |
487 StopAecDump(); | 482 StopAecDump(); |
488 | 483 |
489 if (playout_data_source_) | 484 if (playout_data_source_) |
490 playout_data_source_->RemovePlayoutSink(this); | 485 playout_data_source_->RemovePlayoutSink(this); |
491 | 486 |
492 audio_processing_.reset(); | 487 audio_processing_.reset(); |
493 } | 488 } |
494 | 489 |
| 490 bool MediaStreamAudioProcessor::IsAudioTrackProcessingEnabled() const { |
| 491 const std::string group_name = |
| 492 base::FieldTrialList::FindFullName("MediaStreamAudioTrackProcessing"); |
| 493 return group_name == "Enabled" || CommandLine::ForCurrentProcess()->HasSwitch( |
| 494 switches::kEnableAudioTrackProcessing); |
| 495 } |
| 496 |
495 } // namespace content | 497 } // namespace content |
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