| OLD | NEW |
|---|
| (Empty) |
| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "remoting/host/audio_pump.h" | |
| 6 | |
| 7 #include <utility> | |
| 8 | |
| 9 #include "base/bind.h" | |
| 10 #include "base/location.h" | |
| 11 #include "base/logging.h" | |
| 12 #include "base/macros.h" | |
| 13 #include "base/single_thread_task_runner.h" | |
| 14 #include "base/threading/thread_task_runner_handle.h" | |
| 15 #include "remoting/codec/audio_encoder.h" | |
| 16 #include "remoting/host/audio_capturer.h" | |
| 17 #include "remoting/proto/audio.pb.h" | |
| 18 #include "remoting/protocol/audio_stub.h" | |
| 19 | |
| 20 namespace remoting { | |
| 21 | |
| 22 // Limit the data stored in the pending send buffers to 250ms. | |
| 23 const int kMaxBufferedIntervalMs = 250; | |
| 24 | |
| 25 class AudioPump::Core { | |
| 26 public: | |
| 27 Core(base::WeakPtr<AudioPump> pump, | |
| 28 std::unique_ptr<AudioCapturer> audio_capturer, | |
| 29 std::unique_ptr<AudioEncoder> audio_encoder); | |
| 30 ~Core(); | |
| 31 | |
| 32 void Start(); | |
| 33 void Pause(bool pause); | |
| 34 | |
| 35 void OnPacketSent(int size); | |
| 36 | |
| 37 private: | |
| 38 void EncodeAudioPacket(std::unique_ptr<AudioPacket> packet); | |
| 39 | |
| 40 base::ThreadChecker thread_checker_; | |
| 41 | |
| 42 base::WeakPtr<AudioPump> pump_; | |
| 43 | |
| 44 scoped_refptr<base::SingleThreadTaskRunner> pump_task_runner_; | |
| 45 | |
| 46 std::unique_ptr<AudioCapturer> audio_capturer_; | |
| 47 std::unique_ptr<AudioEncoder> audio_encoder_; | |
| 48 | |
| 49 bool enabled_; | |
| 50 | |
| 51 // Number of bytes in the queue that have been encoded but haven't been sent | |
| 52 // yet. | |
| 53 int bytes_pending_; | |
| 54 | |
| 55 DISALLOW_COPY_AND_ASSIGN(Core); | |
| 56 }; | |
| 57 | |
| 58 AudioPump::Core::Core(base::WeakPtr<AudioPump> pump, | |
| 59 std::unique_ptr<AudioCapturer> audio_capturer, | |
| 60 std::unique_ptr<AudioEncoder> audio_encoder) | |
| 61 : pump_(pump), | |
| 62 pump_task_runner_(base::ThreadTaskRunnerHandle::Get()), | |
| 63 audio_capturer_(std::move(audio_capturer)), | |
| 64 audio_encoder_(std::move(audio_encoder)), | |
| 65 enabled_(true), | |
| 66 bytes_pending_(0) { | |
| 67 thread_checker_.DetachFromThread(); | |
| 68 } | |
| 69 | |
| 70 AudioPump::Core::~Core() { | |
| 71 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 72 } | |
| 73 | |
| 74 void AudioPump::Core::Start() { | |
| 75 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 76 | |
| 77 audio_capturer_->Start( | |
| 78 base::Bind(&Core::EncodeAudioPacket, base::Unretained(this))); | |
| 79 } | |
| 80 | |
| 81 void AudioPump::Core::Pause(bool pause) { | |
| 82 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 83 | |
| 84 enabled_ = !pause; | |
| 85 } | |
| 86 | |
| 87 void AudioPump::Core::OnPacketSent(int size) { | |
| 88 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 89 | |
| 90 bytes_pending_-= size; | |
| 91 DCHECK_GE(bytes_pending_, 0); | |
| 92 } | |
| 93 | |
| 94 void AudioPump::Core::EncodeAudioPacket(std::unique_ptr<AudioPacket> packet) { | |
| 95 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 96 DCHECK(packet); | |
| 97 | |
| 98 int max_buffered_bytes = | |
| 99 audio_encoder_->GetBitrate() * kMaxBufferedIntervalMs / 1000 / 8; | |
| 100 if (!enabled_ || bytes_pending_ > max_buffered_bytes) | |
| 101 return; | |
| 102 | |
| 103 std::unique_ptr<AudioPacket> encoded_packet = | |
| 104 audio_encoder_->Encode(std::move(packet)); | |
| 105 | |
| 106 // The audio encoder returns a null audio packet if there's no audio to send. | |
| 107 if (!encoded_packet) | |
| 108 return; | |
| 109 | |
| 110 int packet_size = encoded_packet->ByteSize(); | |
| 111 bytes_pending_ += packet_size; | |
| 112 | |
| 113 pump_task_runner_->PostTask( | |
| 114 FROM_HERE, base::Bind(&AudioPump::SendAudioPacket, pump_, | |
| 115 base::Passed(&encoded_packet), packet_size)); | |
| 116 } | |
| 117 | |
| 118 AudioPump::AudioPump( | |
| 119 scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner, | |
| 120 std::unique_ptr<AudioCapturer> audio_capturer, | |
| 121 std::unique_ptr<AudioEncoder> audio_encoder, | |
| 122 protocol::AudioStub* audio_stub) | |
| 123 : audio_task_runner_(audio_task_runner), | |
| 124 audio_stub_(audio_stub), | |
| 125 weak_factory_(this) { | |
| 126 DCHECK(audio_stub_); | |
| 127 | |
| 128 core_.reset(new Core(weak_factory_.GetWeakPtr(), std::move(audio_capturer), | |
| 129 std::move(audio_encoder))); | |
| 130 | |
| 131 audio_task_runner_->PostTask( | |
| 132 FROM_HERE, base::Bind(&Core::Start, base::Unretained(core_.get()))); | |
| 133 } | |
| 134 | |
| 135 AudioPump::~AudioPump() { | |
| 136 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 137 | |
| 138 audio_task_runner_->DeleteSoon(FROM_HERE, core_.release()); | |
| 139 } | |
| 140 | |
| 141 void AudioPump::Pause(bool pause) { | |
| 142 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 143 | |
| 144 audio_task_runner_->PostTask( | |
| 145 FROM_HERE, | |
| 146 base::Bind(&Core::Pause, base::Unretained(core_.get()), pause)); | |
| 147 } | |
| 148 | |
| 149 void AudioPump::SendAudioPacket(std::unique_ptr<AudioPacket> packet, int size) { | |
| 150 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 151 DCHECK(packet); | |
| 152 | |
| 153 audio_stub_->ProcessAudioPacket( | |
| 154 std::move(packet), | |
| 155 base::Bind(&AudioPump::OnPacketSent, weak_factory_.GetWeakPtr(), size)); | |
| 156 } | |
| 157 | |
| 158 void AudioPump::OnPacketSent(int size) { | |
| 159 audio_task_runner_->PostTask( | |
| 160 FROM_HERE, | |
| 161 base::Bind(&Core::OnPacketSent, base::Unretained(core_.get()), size)); | |
| 162 } | |
| 163 | |
| 164 } // namespace remoting | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2254673002:
Remove dependency on AudioStub in ConnectionToClient (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master