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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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/audio_track_recorder.h" | 5 #include "content/renderer/media/audio_track_recorder.h" |
6 | 6 |
7 #include <stdint.h> | 7 #include <stdint.h> |
8 #include <utility> | 8 #include <utility> |
9 | 9 |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
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112 void set_paused(bool paused) { paused_ = paused; } | 112 void set_paused(bool paused) { paused_ = paused; } |
113 | 113 |
114 private: | 114 private: |
115 friend class base::RefCountedThreadSafe<AudioEncoder>; | 115 friend class base::RefCountedThreadSafe<AudioEncoder>; |
116 ~AudioEncoder() override; | 116 ~AudioEncoder() override; |
117 | 117 |
118 bool is_initialized() const { return !!opus_encoder_; } | 118 bool is_initialized() const { return !!opus_encoder_; } |
119 | 119 |
120 // media::AudioConverted::InputCallback implementation. | 120 // media::AudioConverted::InputCallback implementation. |
121 double ProvideInput(media::AudioBus* audio_bus, | 121 double ProvideInput(media::AudioBus* audio_bus, |
122 base::TimeDelta buffer_delay) override; | 122 uint32_t frames_delayed) override; |
123 | 123 |
124 void DestroyExistingOpusEncoder(); | 124 void DestroyExistingOpusEncoder(); |
125 | 125 |
126 const OnEncodedAudioCB on_encoded_audio_cb_; | 126 const OnEncodedAudioCB on_encoded_audio_cb_; |
127 | 127 |
128 // Target bitrate for Opus. If 0, Opus provide automatic bitrate is used. | 128 // Target bitrate for Opus. If 0, Opus provide automatic bitrate is used. |
129 const int32_t bits_per_second_; | 129 const int32_t bits_per_second_; |
130 | 130 |
131 base::ThreadChecker encoder_thread_checker_; | 131 base::ThreadChecker encoder_thread_checker_; |
132 | 132 |
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270 base::Time::kMicrosecondsPerSecond / | 270 base::Time::kMicrosecondsPerSecond / |
271 input_params_.sample_rate()); | 271 input_params_.sample_rate()); |
272 on_encoded_audio_cb_.Run(output_params_, std::move(encoded_data), | 272 on_encoded_audio_cb_.Run(output_params_, std::move(encoded_data), |
273 capture_time_of_first_sample); | 273 capture_time_of_first_sample); |
274 } | 274 } |
275 } | 275 } |
276 } | 276 } |
277 | 277 |
278 double AudioTrackRecorder::AudioEncoder::ProvideInput( | 278 double AudioTrackRecorder::AudioEncoder::ProvideInput( |
279 media::AudioBus* audio_bus, | 279 media::AudioBus* audio_bus, |
280 base::TimeDelta buffer_delay) { | 280 uint32_t frames_delayed) { |
281 fifo_->Consume(audio_bus, 0, audio_bus->frames()); | 281 fifo_->Consume(audio_bus, 0, audio_bus->frames()); |
282 return 1.0; // Return volume greater than zero to indicate we have more data. | 282 return 1.0; // Return volume greater than zero to indicate we have more data. |
283 } | 283 } |
284 | 284 |
285 void AudioTrackRecorder::AudioEncoder::DestroyExistingOpusEncoder() { | 285 void AudioTrackRecorder::AudioEncoder::DestroyExistingOpusEncoder() { |
286 // We don't DCHECK that we're on the encoder thread here, as this could be | 286 // We don't DCHECK that we're on the encoder thread here, as this could be |
287 // called from the dtor (main thread) or from OnSetFormat() (encoder thread). | 287 // called from the dtor (main thread) or from OnSetFormat() (encoder thread). |
288 if (opus_encoder_) { | 288 if (opus_encoder_) { |
289 opus_encoder_destroy(opus_encoder_); | 289 opus_encoder_destroy(opus_encoder_); |
290 opus_encoder_ = nullptr; | 290 opus_encoder_ = nullptr; |
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350 } | 350 } |
351 | 351 |
352 void AudioTrackRecorder::Resume() { | 352 void AudioTrackRecorder::Resume() { |
353 DCHECK(main_render_thread_checker_.CalledOnValidThread()); | 353 DCHECK(main_render_thread_checker_.CalledOnValidThread()); |
354 DCHECK(encoder_); | 354 DCHECK(encoder_); |
355 encoder_thread_.task_runner()->PostTask( | 355 encoder_thread_.task_runner()->PostTask( |
356 FROM_HERE, base::Bind(&AudioEncoder::set_paused, encoder_, false)); | 356 FROM_HERE, base::Bind(&AudioEncoder::set_paused, encoder_, false)); |
357 } | 357 } |
358 | 358 |
359 } // namespace content | 359 } // namespace content |
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