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/*
* Copyright (c) 2019 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.
*/
#ifndef TEST_PC_E2E_ECHO_ECHO_EMULATION_H_
#define TEST_PC_E2E_ECHO_ECHO_EMULATION_H_
#include <atomic>
#include <deque>
#include <memory>
#include <vector>
#include "api/test/pclf/media_configuration.h"
#include "modules/audio_device/include/test_audio_device.h"
#include "rtc_base/swap_queue.h"
namespace webrtc {
namespace webrtc_pc_e2e {
// Reduces audio input strength from provided capturer twice and adds input
// provided into EchoEmulatingCapturer::OnAudioRendered(...).
class EchoEmulatingCapturer : public TestAudioDeviceModule::Capturer {
public:
EchoEmulatingCapturer(
std::unique_ptr<TestAudioDeviceModule::Capturer> capturer,
EchoEmulationConfig config);
void OnAudioRendered(rtc::ArrayView<const int16_t> data);
int SamplingFrequency() const override {
return delegate_->SamplingFrequency();
}
int NumChannels() const override { return delegate_->NumChannels(); }
bool Capture(rtc::BufferT<int16_t>* buffer) override;
private:
std::unique_ptr<TestAudioDeviceModule::Capturer> delegate_;
const EchoEmulationConfig config_;
SwapQueue<std::vector<int16_t>> renderer_queue_;
SequenceChecker renderer_thread_;
std::vector<int16_t> queue_input_ RTC_GUARDED_BY(renderer_thread_);
bool recording_started_ RTC_GUARDED_BY(renderer_thread_) = false;
SequenceChecker capturer_thread_;
std::vector<int16_t> queue_output_ RTC_GUARDED_BY(capturer_thread_);
bool delay_accumulated_ RTC_GUARDED_BY(capturer_thread_) = false;
};
// Renders output into provided renderer and also copy output into provided
// EchoEmulationCapturer.
class EchoEmulatingRenderer : public TestAudioDeviceModule::Renderer {
public:
EchoEmulatingRenderer(
std::unique_ptr<TestAudioDeviceModule::Renderer> renderer,
EchoEmulatingCapturer* echo_emulating_capturer);
int SamplingFrequency() const override {
return delegate_->SamplingFrequency();
}
int NumChannels() const override { return delegate_->NumChannels(); }
bool Render(rtc::ArrayView<const int16_t> data) override;
private:
std::unique_ptr<TestAudioDeviceModule::Renderer> delegate_;
EchoEmulatingCapturer* echo_emulating_capturer_;
};
} // namespace webrtc_pc_e2e
} // namespace webrtc
#endif // TEST_PC_E2E_ECHO_ECHO_EMULATION_H_
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