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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/audio_output_resampler.h" | 5 #include "media/audio/audio_output_resampler.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/bind_helpers.h" | 8 #include "base/bind_helpers.h" |
9 #include "base/compiler_specific.h" | 9 #include "base/compiler_specific.h" |
10 #include "base/message_loop/message_loop.h" | 10 #include "base/message_loop/message_loop.h" |
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284 DCHECK(message_loop_->BelongsToCurrentThread()); | 284 DCHECK(message_loop_->BelongsToCurrentThread()); |
285 | 285 |
286 // No AudioOutputProxy objects should hold a reference to us when we get | 286 // No AudioOutputProxy objects should hold a reference to us when we get |
287 // to this stage. | 287 // to this stage. |
288 DCHECK(HasOneRef()) << "Only the AudioManager should hold a reference"; | 288 DCHECK(HasOneRef()) << "Only the AudioManager should hold a reference"; |
289 | 289 |
290 dispatcher_->Shutdown(); | 290 dispatcher_->Shutdown(); |
291 DCHECK(callbacks_.empty()); | 291 DCHECK(callbacks_.empty()); |
292 } | 292 } |
293 | 293 |
| 294 void AudioOutputResampler::CloseStreamsForWedgeFix() { |
| 295 DCHECK(message_loop_->BelongsToCurrentThread()); |
| 296 |
| 297 // Stop and close all active streams. Once all streams across all dispatchers |
| 298 // have been closed the AudioManager will call RestartStreamsForWedgeFix(). |
| 299 for (CallbackMap::iterator it = callbacks_.begin(); it != callbacks_.end(); |
| 300 ++it) { |
| 301 dispatcher_->StopStream(it->first); |
| 302 dispatcher_->CloseStream(it->first); |
| 303 } |
| 304 |
| 305 // Close all idle streams as well. |
| 306 dispatcher_->CloseStreamsForWedgeFix(); |
| 307 } |
| 308 |
| 309 void AudioOutputResampler::RestartStreamsForWedgeFix() { |
| 310 DCHECK(message_loop_->BelongsToCurrentThread()); |
| 311 for (CallbackMap::iterator it = callbacks_.begin(); it != callbacks_.end(); |
| 312 ++it) { |
| 313 dispatcher_->OpenStream(); |
| 314 dispatcher_->StartStream(it->second, it->first); |
| 315 } |
| 316 } |
| 317 |
294 OnMoreDataConverter::OnMoreDataConverter(const AudioParameters& input_params, | 318 OnMoreDataConverter::OnMoreDataConverter(const AudioParameters& input_params, |
295 const AudioParameters& output_params) | 319 const AudioParameters& output_params) |
296 : io_ratio_(static_cast<double>(input_params.GetBytesPerSecond()) / | 320 : io_ratio_(static_cast<double>(input_params.GetBytesPerSecond()) / |
297 output_params.GetBytesPerSecond()), | 321 output_params.GetBytesPerSecond()), |
298 source_callback_(NULL), | 322 source_callback_(NULL), |
299 input_bytes_per_second_(input_params.GetBytesPerSecond()), | 323 input_bytes_per_second_(input_params.GetBytesPerSecond()), |
300 audio_converter_(input_params, output_params, false) {} | 324 audio_converter_(input_params, output_params, false) {} |
301 | 325 |
302 OnMoreDataConverter::~OnMoreDataConverter() { | 326 OnMoreDataConverter::~OnMoreDataConverter() { |
303 // Ensure Stop() has been called so we don't end up with an AudioOutputStream | 327 // Ensure Stop() has been called so we don't end up with an AudioOutputStream |
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361 if (frames > 0 && frames < dest->frames()) | 385 if (frames > 0 && frames < dest->frames()) |
362 dest->ZeroFramesPartial(frames, dest->frames() - frames); | 386 dest->ZeroFramesPartial(frames, dest->frames() - frames); |
363 return frames > 0 ? 1 : 0; | 387 return frames > 0 ? 1 : 0; |
364 } | 388 } |
365 | 389 |
366 void OnMoreDataConverter::OnError(AudioOutputStream* stream) { | 390 void OnMoreDataConverter::OnError(AudioOutputStream* stream) { |
367 source_callback_->OnError(stream); | 391 source_callback_->OnError(stream); |
368 } | 392 } |
369 | 393 |
370 } // namespace media | 394 } // namespace media |
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