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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 "media/blink/webaudiosourceprovider_impl.h" | 5 #include "media/blink/webaudiosourceprovider_impl.h" |
6 | 6 |
7 #include <vector> | 7 #include <vector> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/callback_helpers.h" | 10 #include "base/callback_helpers.h" |
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226 | 226 |
227 sink_->Initialize(params, tee_filter_.get()); | 227 sink_->Initialize(params, tee_filter_.get()); |
228 | 228 |
229 if (!set_format_cb_.is_null()) | 229 if (!set_format_cb_.is_null()) |
230 base::ResetAndReturn(&set_format_cb_).Run(); | 230 base::ResetAndReturn(&set_format_cb_).Run(); |
231 } | 231 } |
232 | 232 |
233 void WebAudioSourceProviderImpl::SetCopyAudioCallback( | 233 void WebAudioSourceProviderImpl::SetCopyAudioCallback( |
234 const CopyAudioCB& callback) { | 234 const CopyAudioCB& callback) { |
235 DCHECK(!callback.is_null()); | 235 DCHECK(!callback.is_null()); |
| 236 |
| 237 // Use |sink_lock_| to protect |tee_filter_| too since they go in lockstep. |
| 238 base::AutoLock auto_lock(sink_lock_); |
| 239 |
236 DCHECK(tee_filter_); | 240 DCHECK(tee_filter_); |
237 tee_filter_->set_copy_audio_bus_callback(callback); | 241 tee_filter_->set_copy_audio_bus_callback(callback); |
238 } | 242 } |
239 | 243 |
240 void WebAudioSourceProviderImpl::ClearCopyAudioCallback() { | 244 void WebAudioSourceProviderImpl::ClearCopyAudioCallback() { |
241 DCHECK(tee_filter_); | 245 DCHECK(tee_filter_); |
242 tee_filter_->set_copy_audio_bus_callback(CopyAudioCB()); | 246 tee_filter_->set_copy_audio_bus_callback(CopyAudioCB()); |
243 } | 247 } |
244 | 248 |
| 249 int WebAudioSourceProviderImpl::RenderForTesting(AudioBus* audio_bus) { |
| 250 return tee_filter_->Render(audio_bus, 0, 0); |
| 251 } |
| 252 |
245 void WebAudioSourceProviderImpl::OnSetFormat() { | 253 void WebAudioSourceProviderImpl::OnSetFormat() { |
246 base::AutoLock auto_lock(sink_lock_); | 254 base::AutoLock auto_lock(sink_lock_); |
247 if (!client_) | 255 if (!client_) |
248 return; | 256 return; |
249 | 257 |
250 // Inform Blink about the audio stream format. | 258 // Inform Blink about the audio stream format. |
251 client_->setFormat(tee_filter_->channels(), tee_filter_->sample_rate()); | 259 client_->setFormat(tee_filter_->channels(), tee_filter_->sample_rate()); |
252 } | 260 } |
253 | 261 |
254 int WebAudioSourceProviderImpl::RenderForTesting(AudioBus* audio_bus) { | |
255 return tee_filter_->Render(audio_bus, 0, 0); | |
256 } | |
257 | |
258 int WebAudioSourceProviderImpl::TeeFilter::Render(AudioBus* audio_bus, | 262 int WebAudioSourceProviderImpl::TeeFilter::Render(AudioBus* audio_bus, |
259 uint32_t delay_milliseconds, | 263 uint32_t delay_milliseconds, |
260 uint32_t frames_skipped) { | 264 uint32_t frames_skipped) { |
261 const int num_rendered_frames = | 265 const int num_rendered_frames = |
262 renderer_->Render(audio_bus, delay_milliseconds, frames_skipped); | 266 renderer_->Render(audio_bus, delay_milliseconds, frames_skipped); |
263 | 267 |
264 if (!copy_audio_bus_callback_.is_null()) { | 268 if (!copy_audio_bus_callback_.is_null()) { |
265 std::unique_ptr<AudioBus> bus_copy = | 269 std::unique_ptr<AudioBus> bus_copy = |
266 AudioBus::Create(audio_bus->channels(), audio_bus->frames()); | 270 AudioBus::Create(audio_bus->channels(), audio_bus->frames()); |
267 audio_bus->CopyTo(bus_copy.get()); | 271 audio_bus->CopyTo(bus_copy.get()); |
268 copy_audio_bus_callback_.Run(std::move(bus_copy), delay_milliseconds, | 272 copy_audio_bus_callback_.Run(std::move(bus_copy), delay_milliseconds, |
269 sample_rate_); | 273 sample_rate_); |
270 } | 274 } |
271 | 275 |
272 return num_rendered_frames; | 276 return num_rendered_frames; |
273 } | 277 } |
274 | 278 |
275 void WebAudioSourceProviderImpl::TeeFilter::OnRenderError() { | 279 void WebAudioSourceProviderImpl::TeeFilter::OnRenderError() { |
276 renderer_->OnRenderError(); | 280 renderer_->OnRenderError(); |
277 } | 281 } |
278 | 282 |
279 } // namespace media | 283 } // namespace media |
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