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/*
* Copyright 2023 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef OBOETESTER_TEST_COLD_START_LATENCY_H
#define OBOETESTER_TEST_COLD_START_LATENCY_H
#include "oboe/Oboe.h"
#include <thread>
/**
* Test for getting the cold start latency
*/
class TestColdStartLatency {
public:
int32_t open(bool useInput, bool useLowLatency, bool useMmap, bool useExclusive);
int32_t start();
int32_t close();
int32_t getColdStartTimeMicros();
int32_t getOpenTimeMicros() {
return (int32_t) (mOpenTimeMicros.load());
}
int32_t getStartTimeMicros() {
return (int32_t) (mStartTimeMicros.load());
}
int32_t getDeviceId() {
return mDeviceId;
}
protected:
std::atomic<int64_t> mBeginStartNanos{0};
std::atomic<double> mOpenTimeMicros{0};
std::atomic<double> mStartTimeMicros{0};
std::atomic<double> mColdStartTimeMicros{0};
std::atomic<int32_t> mDeviceId{0};
private:
class MyDataCallback : public oboe::AudioStreamDataCallback { public:
MyDataCallback() {}
oboe::DataCallbackResult onAudioReady(
oboe::AudioStream *audioStream,
void *audioData,
int32_t numFrames) override;
private:
// For sine generator.
float mPhase = 0.0f;
static constexpr float kPhaseIncrement = 2.0f * (float) M_PI * 440.0f / 48000.0f;
};
std::shared_ptr<oboe::AudioStream> mStream;
std::shared_ptr<MyDataCallback> mDataCallback;
static constexpr int kChannelCount = 1;
};
#endif //OBOETESTER_TEST_COLD_START_LATENCY_H
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