1 files changed, 522 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/audio_device/win/audio_device_module_win.cc b/third_party/libwebrtc/modules/audio_device/win/audio_device_module_win.cc
new file mode 100644
index 0000000000..a36c40735e
--- /dev/null
+++ b/third_party/libwebrtc/modules/audio_device/win/audio_device_module_win.cc
@@ -0,0 +1,522 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/audio_device/win/audio_device_module_win.h"
+
+#include <memory>
+#include <utility>
+
+#include "api/make_ref_counted.h"
+#include "api/sequence_checker.h"
+#include "modules/audio_device/audio_device_buffer.h"
+#include "modules/audio_device/include/audio_device.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/string_utils.h"
+
+namespace webrtc {
+namespace webrtc_win {
+namespace {
+
+#define RETURN_IF_OUTPUT_RESTARTS(...) \
+  do {                                 \
+    if (output_->Restarting()) {       \
+      return __VA_ARGS__;              \
+    }                                  \
+  } while (0)
+
+#define RETURN_IF_INPUT_RESTARTS(...) \
+  do {                                \
+    if (input_->Restarting()) {       \
+      return __VA_ARGS__;             \
+    }                                 \
+  } while (0)
+
+#define RETURN_IF_OUTPUT_IS_INITIALIZED(...) \
+  do {                                       \
+    if (output_->PlayoutIsInitialized()) {   \
+      return __VA_ARGS__;                    \
+    }                                        \
+  } while (0)
+
+#define RETURN_IF_INPUT_IS_INITIALIZED(...) \
+  do {                                      \
+    if (input_->RecordingIsInitialized()) { \
+      return __VA_ARGS__;                   \
+    }                                       \
+  } while (0)
+
+#define RETURN_IF_OUTPUT_IS_ACTIVE(...) \
+  do {                                  \
+    if (output_->Playing()) {           \
+      return __VA_ARGS__;               \
+    }                                   \
+  } while (0)
+
+#define RETURN_IF_INPUT_IS_ACTIVE(...) \
+  do {                                 \
+    if (input_->Recording()) {         \
+      return __VA_ARGS__;              \
+    }                                  \
+  } while (0)
+
+// This class combines a generic instance of an AudioInput and a generic
+// instance of an AudioOutput to create an AudioDeviceModule. This is mostly
+// done by delegating to the audio input/output with some glue code. This class
+// also directly implements some of the AudioDeviceModule methods with dummy
+// implementations.
+//
+// An instance must be created, destroyed and used on one and the same thread,
+// i.e., all public methods must also be called on the same thread. A thread
+// checker will RTC_DCHECK if any method is called on an invalid thread.
+// TODO(henrika): is thread checking needed in AudioInput and AudioOutput?
+class WindowsAudioDeviceModule : public AudioDeviceModuleForTest {
+ public:
+  enum class InitStatus {
+    OK = 0,
+    PLAYOUT_ERROR = 1,
+    RECORDING_ERROR = 2,
+    OTHER_ERROR = 3,
+    NUM_STATUSES = 4
+  };
+
+  WindowsAudioDeviceModule(std::unique_ptr<AudioInput> audio_input,
+                           std::unique_ptr<AudioOutput> audio_output,
+                           TaskQueueFactory* task_queue_factory)
+      : input_(std::move(audio_input)),
+        output_(std::move(audio_output)),
+        task_queue_factory_(task_queue_factory) {
+    RTC_CHECK(input_);
+    RTC_CHECK(output_);
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+  }
+
+  ~WindowsAudioDeviceModule() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    Terminate();
+  }
+
+  WindowsAudioDeviceModule(const WindowsAudioDeviceModule&) = delete;
+  WindowsAudioDeviceModule& operator=(const WindowsAudioDeviceModule&) = delete;
+
+  int32_t ActiveAudioLayer(
+      AudioDeviceModule::AudioLayer* audioLayer) const override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    // TODO(henrika): it might be possible to remove this unique signature.
+    *audioLayer = AudioDeviceModule::kWindowsCoreAudio2;
+    return 0;
+  }
+
+  int32_t RegisterAudioCallback(AudioTransport* audioCallback) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK(audio_device_buffer_);
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    return audio_device_buffer_->RegisterAudioCallback(audioCallback);
+  }
+
+  int32_t Init() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(0);
+    RETURN_IF_INPUT_RESTARTS(0);
+    if (initialized_) {
+      return 0;
+    }
+    audio_device_buffer_ =
+        std::make_unique<AudioDeviceBuffer>(task_queue_factory_);
+    AttachAudioBuffer();
+    InitStatus status;
+    if (output_->Init() != 0) {
+      status = InitStatus::PLAYOUT_ERROR;
+    } else if (input_->Init() != 0) {
+      output_->Terminate();
+      status = InitStatus::RECORDING_ERROR;
+    } else {
+      initialized_ = true;
+      status = InitStatus::OK;
+    }
+    if (status != InitStatus::OK) {
+      RTC_LOG(LS_ERROR) << "Audio device initialization failed";
+      return -1;
+    }
+    return 0;
+  }
+
+  int32_t Terminate() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(0);
+    RETURN_IF_INPUT_RESTARTS(0);
+    if (!initialized_)
+      return 0;
+    int32_t err = input_->Terminate();
+    err |= output_->Terminate();
+    initialized_ = false;
+    RTC_DCHECK_EQ(err, 0);
+    return err;
+  }
+
+  bool Initialized() const override {
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    return initialized_;
+  }
+
+  int16_t PlayoutDevices() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(0);
+    return output_->NumDevices();
+  }
+
+  int16_t RecordingDevices() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_INPUT_RESTARTS(0);
+    return input_->NumDevices();
+  }
+
+  int32_t PlayoutDeviceName(uint16_t index,
+                            char name[kAdmMaxDeviceNameSize],
+                            char guid[kAdmMaxGuidSize]) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(0);
+    std::string name_str, guid_str;
+    int ret = -1;
+    if (guid != nullptr) {
+      ret = output_->DeviceName(index, &name_str, &guid_str);
+      rtc::strcpyn(guid, kAdmMaxGuidSize, guid_str.c_str());
+    } else {
+      ret = output_->DeviceName(index, &name_str, nullptr);
+    }
+    rtc::strcpyn(name, kAdmMaxDeviceNameSize, name_str.c_str());
+    return ret;
+  }
+  int32_t RecordingDeviceName(uint16_t index,
+                              char name[kAdmMaxDeviceNameSize],
+                              char guid[kAdmMaxGuidSize]) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_INPUT_RESTARTS(0);
+    std::string name_str, guid_str;
+    int ret = -1;
+    if (guid != nullptr) {
+      ret = input_->DeviceName(index, &name_str, &guid_str);
+      rtc::strcpyn(guid, kAdmMaxGuidSize, guid_str.c_str());
+    } else {
+      ret = input_->DeviceName(index, &name_str, nullptr);
+    }
+    rtc::strcpyn(name, kAdmMaxDeviceNameSize, name_str.c_str());
+    return ret;
+  }
+
+  int32_t SetPlayoutDevice(uint16_t index) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(0);
+    return output_->SetDevice(index);
+  }
+
+  int32_t SetPlayoutDevice(
+      AudioDeviceModule::WindowsDeviceType device) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(0);
+    return output_->SetDevice(device);
+  }
+  int32_t SetRecordingDevice(uint16_t index) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    return input_->SetDevice(index);
+  }
+
+  int32_t SetRecordingDevice(
+      AudioDeviceModule::WindowsDeviceType device) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    return input_->SetDevice(device);
+  }
+
+  int32_t PlayoutIsAvailable(bool* available) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    *available = true;
+    return 0;
+  }
+
+  int32_t InitPlayout() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(0);
+    RETURN_IF_OUTPUT_IS_INITIALIZED(0);
+    return output_->InitPlayout();
+  }
+
+  bool PlayoutIsInitialized() const override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(true);
+    return output_->PlayoutIsInitialized();
+  }
+
+  int32_t RecordingIsAvailable(bool* available) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    *available = true;
+    return 0;
+  }
+
+  int32_t InitRecording() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_INPUT_RESTARTS(0);
+    RETURN_IF_INPUT_IS_INITIALIZED(0);
+    return input_->InitRecording();
+  }
+
+  bool RecordingIsInitialized() const override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_INPUT_RESTARTS(true);
+    return input_->RecordingIsInitialized();
+  }
+
+  int32_t StartPlayout() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(0);
+    RETURN_IF_OUTPUT_IS_ACTIVE(0);
+    return output_->StartPlayout();
+  }
+
+  int32_t StopPlayout() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(-1);
+    return output_->StopPlayout();
+  }
+
+  bool Playing() const override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(true);
+    return output_->Playing();
+  }
+
+  int32_t StartRecording() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_INPUT_RESTARTS(0);
+    RETURN_IF_INPUT_IS_ACTIVE(0);
+    return input_->StartRecording();
+  }
+
+  int32_t StopRecording() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_INPUT_RESTARTS(-1);
+    return input_->StopRecording();
+  }
+
+  bool Recording() const override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RETURN_IF_INPUT_RESTARTS(true);
+    return input_->Recording();
+  }
+
+  int32_t InitSpeaker() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RTC_DLOG(LS_WARNING) << "This method has no effect";
+    return initialized_ ? 0 : -1;
+  }
+
+  bool SpeakerIsInitialized() const override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RTC_DLOG(LS_WARNING) << "This method has no effect";
+    return initialized_;
+  }
+
+  int32_t InitMicrophone() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RTC_DLOG(LS_WARNING) << "This method has no effect";
+    return initialized_ ? 0 : -1;
+  }
+
+  bool MicrophoneIsInitialized() const override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RTC_DLOG(LS_WARNING) << "This method has no effect";
+    return initialized_;
+  }
+
+  int32_t SpeakerVolumeIsAvailable(bool* available) override {
+    // TODO(henrika): improve support.
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    *available = false;
+    return 0;
+  }
+
+  int32_t SetSpeakerVolume(uint32_t volume) override { return 0; }
+  int32_t SpeakerVolume(uint32_t* volume) const override { return 0; }
+  int32_t MaxSpeakerVolume(uint32_t* maxVolume) const override { return 0; }
+  int32_t MinSpeakerVolume(uint32_t* minVolume) const override { return 0; }
+
+  int32_t MicrophoneVolumeIsAvailable(bool* available) override {
+    // TODO(henrika): improve support.
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    *available = false;
+    return 0;
+  }
+
+  int32_t SetMicrophoneVolume(uint32_t volume) override { return 0; }
+  int32_t MicrophoneVolume(uint32_t* volume) const override { return 0; }
+  int32_t MaxMicrophoneVolume(uint32_t* maxVolume) const override { return 0; }
+  int32_t MinMicrophoneVolume(uint32_t* minVolume) const override { return 0; }
+
+  int32_t SpeakerMuteIsAvailable(bool* available) override { return 0; }
+  int32_t SetSpeakerMute(bool enable) override { return 0; }
+  int32_t SpeakerMute(bool* enabled) const override { return 0; }
+
+  int32_t MicrophoneMuteIsAvailable(bool* available) override { return 0; }
+  int32_t SetMicrophoneMute(bool enable) override { return 0; }
+  int32_t MicrophoneMute(bool* enabled) const override { return 0; }
+
+  int32_t StereoPlayoutIsAvailable(bool* available) const override {
+    // TODO(henrika): improve support.
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    *available = true;
+    return 0;
+  }
+
+  int32_t SetStereoPlayout(bool enable) override {
+    // TODO(henrika): improve support.
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    return 0;
+  }
+
+  int32_t StereoPlayout(bool* enabled) const override {
+    // TODO(henrika): improve support.
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    *enabled = true;
+    return 0;
+  }
+
+  int32_t StereoRecordingIsAvailable(bool* available) const override {
+    // TODO(henrika): improve support.
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    *available = true;
+    return 0;
+  }
+
+  int32_t SetStereoRecording(bool enable) override {
+    // TODO(henrika): improve support.
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    return 0;
+  }
+
+  int32_t StereoRecording(bool* enabled) const override {
+    // TODO(henrika): improve support.
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    *enabled = true;
+    return 0;
+  }
+
+  int32_t PlayoutDelay(uint16_t* delayMS) const override { return 0; }
+
+  bool BuiltInAECIsAvailable() const override { return false; }
+  bool BuiltInAGCIsAvailable() const override { return false; }
+  bool BuiltInNSIsAvailable() const override { return false; }
+
+  int32_t EnableBuiltInAEC(bool enable) override { return 0; }
+  int32_t EnableBuiltInAGC(bool enable) override { return 0; }
+  int32_t EnableBuiltInNS(bool enable) override { return 0; }
+
+  int32_t AttachAudioBuffer() {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    output_->AttachAudioBuffer(audio_device_buffer_.get());
+    input_->AttachAudioBuffer(audio_device_buffer_.get());
+    return 0;
+  }
+
+  int RestartPlayoutInternally() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    RETURN_IF_OUTPUT_RESTARTS(0);
+    return output_->RestartPlayout();
+  }
+
+  int RestartRecordingInternally() override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    return input_->RestartRecording();
+  }
+
+  int SetPlayoutSampleRate(uint32_t sample_rate) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    return output_->SetSampleRate(sample_rate);
+  }
+
+  int SetRecordingSampleRate(uint32_t sample_rate) override {
+    RTC_DLOG(LS_INFO) << __FUNCTION__;
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    return input_->SetSampleRate(sample_rate);
+  }
+
+ private:
+  // Ensures that the class is used on the same thread as it is constructed
+  // and destroyed on.
+  SequenceChecker thread_checker_;
+
+  // Implements the AudioInput interface and deals with audio capturing parts.
+  const std::unique_ptr<AudioInput> input_;
+
+  // Implements the AudioOutput interface and deals with audio rendering parts.
+  const std::unique_ptr<AudioOutput> output_;
+
+  TaskQueueFactory* const task_queue_factory_;
+
+  // The AudioDeviceBuffer (ADB) instance is needed for sending/receiving audio
+  // to/from the WebRTC layer. Created and owned by this object. Used by
+  // both `input_` and `output_` but they use orthogonal parts of the ADB.
+  std::unique_ptr<AudioDeviceBuffer> audio_device_buffer_;
+
+  // Set to true after a successful call to Init(). Cleared by Terminate().
+  bool initialized_ = false;
+};
+
+}  // namespace
+
+rtc::scoped_refptr<AudioDeviceModuleForTest>
+CreateWindowsCoreAudioAudioDeviceModuleFromInputAndOutput(
+    std::unique_ptr<AudioInput> audio_input,
+    std::unique_ptr<AudioOutput> audio_output,
+    TaskQueueFactory* task_queue_factory) {
+  RTC_DLOG(LS_INFO) << __FUNCTION__;
+  return rtc::make_ref_counted<WindowsAudioDeviceModule>(
+      std::move(audio_input), std::move(audio_output), task_queue_factory);
+}
+
+}  // namespace webrtc_win
+}  // namespace webrtc