blob: be290f9f4eda366a75e4a83c4d0fcd8831ae35d5 [file] [log] [blame]
* 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 <memory>
#include <string>
#include "absl/types/optional.h"
#include "modules/audio_device/win/audio_device_module_win.h"
#include "modules/audio_device/win/core_audio_base_win.h"
namespace webrtc {
class AudioDeviceBuffer;
class FineAudioBuffer;
namespace webrtc_win {
// Windows specific AudioInput implementation using a CoreAudioBase class where
// an input direction is set at construction. Supports capture device handling
// and streaming of captured audio to a WebRTC client.
class CoreAudioInput final : public CoreAudioBase, public AudioInput {
CoreAudioInput(bool automatic_restart);
~CoreAudioInput() override;
// AudioInput implementation.
int Init() override;
int Terminate() override;
int NumDevices() const override;
int SetDevice(int index) override;
int SetDevice(AudioDeviceModule::WindowsDeviceType device) override;
int DeviceName(int index, std::string* name, std::string* guid) override;
void AttachAudioBuffer(AudioDeviceBuffer* audio_buffer) override;
bool RecordingIsInitialized() const override;
int InitRecording() override;
int StartRecording() override;
int StopRecording() override;
bool Recording() override;
int VolumeIsAvailable(bool* available) override;
int RestartRecording() override;
bool Restarting() const override;
int SetSampleRate(uint32_t sample_rate) override;
CoreAudioInput(const CoreAudioInput&) = delete;
CoreAudioInput& operator=(const CoreAudioInput&) = delete;
void ReleaseCOMObjects();
bool OnDataCallback(uint64_t device_frequency);
bool OnErrorCallback(ErrorType error);
absl::optional<int> EstimateLatencyMillis(uint64_t capture_time_100ns);
bool HandleStreamDisconnected();
std::unique_ptr<FineAudioBuffer> fine_audio_buffer_;
Microsoft::WRL::ComPtr<IAudioCaptureClient> audio_capture_client_;
absl::optional<double> qpc_to_100ns_;
} // namespace webrtc_win
} // namespace webrtc