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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 | |
240 DCHECK(tee_filter_); | 236 DCHECK(tee_filter_); |
241 tee_filter_->set_copy_audio_bus_callback(callback); | 237 tee_filter_->set_copy_audio_bus_callback(callback); |
242 } | 238 } |
243 | 239 |
244 void WebAudioSourceProviderImpl::ClearCopyAudioCallback() { | 240 void WebAudioSourceProviderImpl::ClearCopyAudioCallback() { |
245 DCHECK(tee_filter_); | 241 DCHECK(tee_filter_); |
246 tee_filter_->set_copy_audio_bus_callback(CopyAudioCB()); | 242 tee_filter_->set_copy_audio_bus_callback(CopyAudioCB()); |
247 } | 243 } |
248 | 244 |
249 int WebAudioSourceProviderImpl::RenderForTesting(AudioBus* audio_bus) { | |
250 return tee_filter_->Render(audio_bus, 0, 0); | |
251 } | |
252 | |
253 void WebAudioSourceProviderImpl::OnSetFormat() { | 245 void WebAudioSourceProviderImpl::OnSetFormat() { |
254 base::AutoLock auto_lock(sink_lock_); | 246 base::AutoLock auto_lock(sink_lock_); |
255 if (!client_) | 247 if (!client_) |
256 return; | 248 return; |
257 | 249 |
258 // Inform Blink about the audio stream format. | 250 // Inform Blink about the audio stream format. |
259 client_->setFormat(tee_filter_->channels(), tee_filter_->sample_rate()); | 251 client_->setFormat(tee_filter_->channels(), tee_filter_->sample_rate()); |
260 } | 252 } |
261 | 253 |
| 254 int WebAudioSourceProviderImpl::RenderForTesting(AudioBus* audio_bus) { |
| 255 return tee_filter_->Render(audio_bus, 0, 0); |
| 256 } |
| 257 |
262 int WebAudioSourceProviderImpl::TeeFilter::Render(AudioBus* audio_bus, | 258 int WebAudioSourceProviderImpl::TeeFilter::Render(AudioBus* audio_bus, |
263 uint32_t delay_milliseconds, | 259 uint32_t delay_milliseconds, |
264 uint32_t frames_skipped) { | 260 uint32_t frames_skipped) { |
265 const int num_rendered_frames = | 261 const int num_rendered_frames = |
266 renderer_->Render(audio_bus, delay_milliseconds, frames_skipped); | 262 renderer_->Render(audio_bus, delay_milliseconds, frames_skipped); |
267 | 263 |
268 if (!copy_audio_bus_callback_.is_null()) { | 264 if (!copy_audio_bus_callback_.is_null()) { |
269 std::unique_ptr<AudioBus> bus_copy = | 265 std::unique_ptr<AudioBus> bus_copy = |
270 AudioBus::Create(audio_bus->channels(), audio_bus->frames()); | 266 AudioBus::Create(audio_bus->channels(), audio_bus->frames()); |
271 audio_bus->CopyTo(bus_copy.get()); | 267 audio_bus->CopyTo(bus_copy.get()); |
272 copy_audio_bus_callback_.Run(std::move(bus_copy), delay_milliseconds, | 268 copy_audio_bus_callback_.Run(std::move(bus_copy), delay_milliseconds, |
273 sample_rate_); | 269 sample_rate_); |
274 } | 270 } |
275 | 271 |
276 return num_rendered_frames; | 272 return num_rendered_frames; |
277 } | 273 } |
278 | 274 |
279 void WebAudioSourceProviderImpl::TeeFilter::OnRenderError() { | 275 void WebAudioSourceProviderImpl::TeeFilter::OnRenderError() { |
280 renderer_->OnRenderError(); | 276 renderer_->OnRenderError(); |
281 } | 277 } |
282 | 278 |
283 } // namespace media | 279 } // namespace media |
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