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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 "remoting/host/audio_pump.h" | 5 #include "remoting/host/audio_pump.h" |
| 6 | 6 |
| 7 #include <utility> | 7 #include <utility> |
| 8 | 8 |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "base/location.h" | 10 #include "base/location.h" |
| 11 #include "base/logging.h" | 11 #include "base/logging.h" |
| 12 #include "base/macros.h" | 12 #include "base/macros.h" |
| 13 #include "base/single_thread_task_runner.h" | 13 #include "base/single_thread_task_runner.h" |
| 14 #include "base/thread_task_runner_handle.h" | 14 #include "base/thread_task_runner_handle.h" |
| 15 #include "remoting/codec/audio_encoder.h" | 15 #include "remoting/codec/audio_encoder.h" |
| 16 #include "remoting/host/audio_capturer.h" | 16 #include "remoting/host/audio_capturer.h" |
| 17 #include "remoting/proto/audio.pb.h" | 17 #include "remoting/proto/audio.pb.h" |
| 18 #include "remoting/protocol/audio_stub.h" | 18 #include "remoting/protocol/audio_stub.h" |
| 19 | 19 |
| 20 namespace remoting { | 20 namespace remoting { |
| 21 | 21 |
| 22 // Limit the data stored in the pending send buffers to 250ms. | 22 // Limit the data stored in the pending send buffers to 250ms. |
| 23 const int kMaxBufferedIntervalMs = 250; | 23 const int kMaxBufferedIntervalMs = 250; |
| 24 | 24 |
| 25 class AudioPump::Core { | 25 class AudioPump::Core { |
| 26 public: | 26 public: |
| 27 Core(base::WeakPtr<AudioPump> pump, | 27 Core(base::WeakPtr<AudioPump> pump, |
| 28 scoped_ptr<AudioCapturer> audio_capturer, | 28 std::unique_ptr<AudioCapturer> audio_capturer, |
| 29 scoped_ptr<AudioEncoder> audio_encoder); | 29 std::unique_ptr<AudioEncoder> audio_encoder); |
| 30 ~Core(); | 30 ~Core(); |
| 31 | 31 |
| 32 void Start(); | 32 void Start(); |
| 33 void Pause(bool pause); | 33 void Pause(bool pause); |
| 34 | 34 |
| 35 void OnPacketSent(int size); | 35 void OnPacketSent(int size); |
| 36 | 36 |
| 37 private: | 37 private: |
| 38 void EncodeAudioPacket(scoped_ptr<AudioPacket> packet); | 38 void EncodeAudioPacket(std::unique_ptr<AudioPacket> packet); |
| 39 | 39 |
| 40 base::ThreadChecker thread_checker_; | 40 base::ThreadChecker thread_checker_; |
| 41 | 41 |
| 42 base::WeakPtr<AudioPump> pump_; | 42 base::WeakPtr<AudioPump> pump_; |
| 43 | 43 |
| 44 scoped_refptr<base::SingleThreadTaskRunner> pump_task_runner_; | 44 scoped_refptr<base::SingleThreadTaskRunner> pump_task_runner_; |
| 45 | 45 |
| 46 scoped_ptr<AudioCapturer> audio_capturer_; | 46 std::unique_ptr<AudioCapturer> audio_capturer_; |
| 47 scoped_ptr<AudioEncoder> audio_encoder_; | 47 std::unique_ptr<AudioEncoder> audio_encoder_; |
| 48 | 48 |
| 49 bool enabled_; | 49 bool enabled_; |
| 50 | 50 |
| 51 // Number of bytes in the queue that have been encoded but haven't been sent | 51 // Number of bytes in the queue that have been encoded but haven't been sent |
| 52 // yet. | 52 // yet. |
| 53 int bytes_pending_; | 53 int bytes_pending_; |
| 54 | 54 |
| 55 DISALLOW_COPY_AND_ASSIGN(Core); | 55 DISALLOW_COPY_AND_ASSIGN(Core); |
| 56 }; | 56 }; |
| 57 | 57 |
| 58 AudioPump::Core::Core(base::WeakPtr<AudioPump> pump, | 58 AudioPump::Core::Core(base::WeakPtr<AudioPump> pump, |
| 59 scoped_ptr<AudioCapturer> audio_capturer, | 59 std::unique_ptr<AudioCapturer> audio_capturer, |
| 60 scoped_ptr<AudioEncoder> audio_encoder) | 60 std::unique_ptr<AudioEncoder> audio_encoder) |
| 61 : pump_(pump), | 61 : pump_(pump), |
| 62 pump_task_runner_(base::ThreadTaskRunnerHandle::Get()), | 62 pump_task_runner_(base::ThreadTaskRunnerHandle::Get()), |
| 63 audio_capturer_(std::move(audio_capturer)), | 63 audio_capturer_(std::move(audio_capturer)), |
| 64 audio_encoder_(std::move(audio_encoder)), | 64 audio_encoder_(std::move(audio_encoder)), |
| 65 enabled_(true), | 65 enabled_(true), |
| 66 bytes_pending_(0) { | 66 bytes_pending_(0) { |
| 67 thread_checker_.DetachFromThread(); | 67 thread_checker_.DetachFromThread(); |
| 68 } | 68 } |
| 69 | 69 |
| 70 AudioPump::Core::~Core() { | 70 AudioPump::Core::~Core() { |
| (...skipping 13 matching lines...) Expand all Loading... |
| 84 enabled_ = !pause; | 84 enabled_ = !pause; |
| 85 } | 85 } |
| 86 | 86 |
| 87 void AudioPump::Core::OnPacketSent(int size) { | 87 void AudioPump::Core::OnPacketSent(int size) { |
| 88 DCHECK(thread_checker_.CalledOnValidThread()); | 88 DCHECK(thread_checker_.CalledOnValidThread()); |
| 89 | 89 |
| 90 bytes_pending_-= size; | 90 bytes_pending_-= size; |
| 91 DCHECK_GE(bytes_pending_, 0); | 91 DCHECK_GE(bytes_pending_, 0); |
| 92 } | 92 } |
| 93 | 93 |
| 94 void AudioPump::Core::EncodeAudioPacket(scoped_ptr<AudioPacket> packet) { | 94 void AudioPump::Core::EncodeAudioPacket(std::unique_ptr<AudioPacket> packet) { |
| 95 DCHECK(thread_checker_.CalledOnValidThread()); | 95 DCHECK(thread_checker_.CalledOnValidThread()); |
| 96 DCHECK(packet); | 96 DCHECK(packet); |
| 97 | 97 |
| 98 int max_buffered_bytes = | 98 int max_buffered_bytes = |
| 99 audio_encoder_->GetBitrate() * kMaxBufferedIntervalMs / 1000 / 8; | 99 audio_encoder_->GetBitrate() * kMaxBufferedIntervalMs / 1000 / 8; |
| 100 if (!enabled_ || bytes_pending_ > max_buffered_bytes) | 100 if (!enabled_ || bytes_pending_ > max_buffered_bytes) |
| 101 return; | 101 return; |
| 102 | 102 |
| 103 scoped_ptr<AudioPacket> encoded_packet = | 103 std::unique_ptr<AudioPacket> encoded_packet = |
| 104 audio_encoder_->Encode(std::move(packet)); | 104 audio_encoder_->Encode(std::move(packet)); |
| 105 | 105 |
| 106 // The audio encoder returns a null audio packet if there's no audio to send. | 106 // The audio encoder returns a null audio packet if there's no audio to send. |
| 107 if (!encoded_packet) | 107 if (!encoded_packet) |
| 108 return; | 108 return; |
| 109 | 109 |
| 110 int packet_size = encoded_packet->ByteSize(); | 110 int packet_size = encoded_packet->ByteSize(); |
| 111 bytes_pending_ += packet_size; | 111 bytes_pending_ += packet_size; |
| 112 | 112 |
| 113 pump_task_runner_->PostTask( | 113 pump_task_runner_->PostTask( |
| 114 FROM_HERE, base::Bind(&AudioPump::SendAudioPacket, pump_, | 114 FROM_HERE, base::Bind(&AudioPump::SendAudioPacket, pump_, |
| 115 base::Passed(&encoded_packet), packet_size)); | 115 base::Passed(&encoded_packet), packet_size)); |
| 116 } | 116 } |
| 117 | 117 |
| 118 AudioPump::AudioPump( | 118 AudioPump::AudioPump( |
| 119 scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner, | 119 scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner, |
| 120 scoped_ptr<AudioCapturer> audio_capturer, | 120 std::unique_ptr<AudioCapturer> audio_capturer, |
| 121 scoped_ptr<AudioEncoder> audio_encoder, | 121 std::unique_ptr<AudioEncoder> audio_encoder, |
| 122 protocol::AudioStub* audio_stub) | 122 protocol::AudioStub* audio_stub) |
| 123 : audio_task_runner_(audio_task_runner), | 123 : audio_task_runner_(audio_task_runner), |
| 124 audio_stub_(audio_stub), | 124 audio_stub_(audio_stub), |
| 125 weak_factory_(this) { | 125 weak_factory_(this) { |
| 126 DCHECK(audio_stub_); | 126 DCHECK(audio_stub_); |
| 127 | 127 |
| 128 core_.reset(new Core(weak_factory_.GetWeakPtr(), std::move(audio_capturer), | 128 core_.reset(new Core(weak_factory_.GetWeakPtr(), std::move(audio_capturer), |
| 129 std::move(audio_encoder))); | 129 std::move(audio_encoder))); |
| 130 | 130 |
| 131 audio_task_runner_->PostTask( | 131 audio_task_runner_->PostTask( |
| 132 FROM_HERE, base::Bind(&Core::Start, base::Unretained(core_.get()))); | 132 FROM_HERE, base::Bind(&Core::Start, base::Unretained(core_.get()))); |
| 133 } | 133 } |
| 134 | 134 |
| 135 AudioPump::~AudioPump() { | 135 AudioPump::~AudioPump() { |
| 136 DCHECK(thread_checker_.CalledOnValidThread()); | 136 DCHECK(thread_checker_.CalledOnValidThread()); |
| 137 | 137 |
| 138 audio_task_runner_->DeleteSoon(FROM_HERE, core_.release()); | 138 audio_task_runner_->DeleteSoon(FROM_HERE, core_.release()); |
| 139 } | 139 } |
| 140 | 140 |
| 141 void AudioPump::Pause(bool pause) { | 141 void AudioPump::Pause(bool pause) { |
| 142 DCHECK(thread_checker_.CalledOnValidThread()); | 142 DCHECK(thread_checker_.CalledOnValidThread()); |
| 143 | 143 |
| 144 audio_task_runner_->PostTask( | 144 audio_task_runner_->PostTask( |
| 145 FROM_HERE, | 145 FROM_HERE, |
| 146 base::Bind(&Core::Pause, base::Unretained(core_.get()), pause)); | 146 base::Bind(&Core::Pause, base::Unretained(core_.get()), pause)); |
| 147 } | 147 } |
| 148 | 148 |
| 149 void AudioPump::SendAudioPacket(scoped_ptr<AudioPacket> packet, int size) { | 149 void AudioPump::SendAudioPacket(std::unique_ptr<AudioPacket> packet, int size) { |
| 150 DCHECK(thread_checker_.CalledOnValidThread()); | 150 DCHECK(thread_checker_.CalledOnValidThread()); |
| 151 DCHECK(packet); | 151 DCHECK(packet); |
| 152 | 152 |
| 153 audio_stub_->ProcessAudioPacket( | 153 audio_stub_->ProcessAudioPacket( |
| 154 std::move(packet), | 154 std::move(packet), |
| 155 base::Bind(&AudioPump::OnPacketSent, weak_factory_.GetWeakPtr(), size)); | 155 base::Bind(&AudioPump::OnPacketSent, weak_factory_.GetWeakPtr(), size)); |
| 156 } | 156 } |
| 157 | 157 |
| 158 void AudioPump::OnPacketSent(int size) { | 158 void AudioPump::OnPacketSent(int size) { |
| 159 audio_task_runner_->PostTask( | 159 audio_task_runner_->PostTask( |
| 160 FROM_HERE, | 160 FROM_HERE, |
| 161 base::Bind(&Core::OnPacketSent, base::Unretained(core_.get()), size)); | 161 base::Bind(&Core::OnPacketSent, base::Unretained(core_.get()), size)); |
| 162 } | 162 } |
| 163 | 163 |
| 164 } // namespace remoting | 164 } // namespace remoting |
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