MYNT-EYE-S-SDK/samples/tutorials/control/framerate.cc

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2018-05-13 05:12:24 +03:00
// Copyright 2018 Slightech Co., Ltd. All rights reserved.
//
// 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.
#include <opencv2/highgui/highgui.hpp>
#include <atomic>
#include "mynteye/api.h"
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#include "mynteye/logger.h"
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#include "mynteye/times.h"
MYNTEYE_USE_NAMESPACE
int main(int argc, char *argv[]) {
auto &&api = API::Create(argc, argv);
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if (!api)
return 1;
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// Attention: must set FRAME_RATE and IMU_FREQUENCY together, otherwise won't
// succeed.
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// FRAME_RATE values: 10, 15, 20, 25, 30, 35, 40, 45, 50, 55
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api->SetOptionValue(Option::FRAME_RATE, 25);
// IMU_FREQUENCY values: 100, 200, 250, 333, 500
api->SetOptionValue(Option::IMU_FREQUENCY, 500);
LOG(INFO) << "Set FRAME_RATE to " << api->GetOptionValue(Option::FRAME_RATE);
LOG(INFO) << "Set IMU_FREQUENCY to "
<< api->GetOptionValue(Option::IMU_FREQUENCY);
// Count img
std::atomic_uint img_count(0);
api->SetStreamCallback(
Stream::LEFT, [&img_count](const api::StreamData &data) {
CHECK_NOTNULL(data.img);
++img_count;
});
// Count imu
std::atomic_uint imu_count(0);
api->SetMotionCallback([&imu_count](const api::MotionData &data) {
CHECK_NOTNULL(data.imu);
++imu_count;
});
api->Start(Source::ALL);
cv::namedWindow("frame");
auto &&time_beg = times::now();
while (true) {
api->WaitForStreams();
auto &&left_data = api->GetStreamData(Stream::LEFT);
auto &&right_data = api->GetStreamData(Stream::RIGHT);
cv::Mat img;
cv::hconcat(left_data.frame, right_data.frame, img);
cv::imshow("frame", img);
char key = static_cast<char>(cv::waitKey(1));
if (key == 27 || key == 'q' || key == 'Q') { // ESC/Q
break;
}
}
auto &&time_end = times::now();
api->Stop(Source::ALL);
// Calculate img fps and imu hz
float elapsed_ms =
times::count<times::microseconds>(time_end - time_beg) * 0.001f;
LOG(INFO) << "Time beg: " << times::to_local_string(time_beg)
<< ", end: " << times::to_local_string(time_end)
<< ", cost: " << elapsed_ms << "ms";
LOG(INFO) << "Img count: " << img_count
<< ", fps: " << (1000.f * img_count / elapsed_ms);
LOG(INFO) << "Imu count: " << imu_count
<< ", hz: " << (1000.f * imu_count / elapsed_ms);
return 0;
}