116 lines
2.6 KiB
C++
116 lines
2.6 KiB
C++
// Copyright 2018 Slightech Co., Ltd. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "mynteye/utils.h"
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#include <glog/logging.h>
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#include "device/context.h"
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#include "device/device.h"
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MYNTEYE_BEGIN_NAMESPACE
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namespace device {
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std::shared_ptr<Device> select() {
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LOG(INFO) << "Detecting MYNT EYE devices";
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Context context;
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auto &&devices = context.devices();
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size_t n = devices.size();
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if (n <= 0) {
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LOG(ERROR) << "No MYNT EYE devices :(";
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return nullptr;
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}
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LOG(INFO) << "MYNT EYE devices:";
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for (size_t i = 0; i < n; i++) {
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auto &&device = devices[i];
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LOG(INFO) << " index: " << i
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<< ", name: " << device->GetInfo(Info::DEVICE_NAME)
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<< ", sn: " << device->GetInfo(Info::SERIAL_NUMBER);
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}
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std::shared_ptr<Device> device = nullptr;
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if (n <= 1) {
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device = devices[0];
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LOG(INFO) << "Only one MYNT EYE device, select index: 0";
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} else {
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while (true) {
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size_t i;
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LOG(INFO) << "There are " << n << " MYNT EYE devices, select index: ";
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std::cin >> i;
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if (i >= n) {
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LOG(WARNING) << "Index out of range :(";
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continue;
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}
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device = devices[i];
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break;
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}
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}
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return device;
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}
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} // namespace device
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namespace utils {
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float get_real_exposure_time(
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std::int32_t frame_rate, std::uint16_t exposure_time) {
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float real_max = 0;
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switch (frame_rate) {
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case 10:
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real_max = 18;
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break;
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case 15:
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real_max = 18;
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break;
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case 20:
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real_max = 18;
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break;
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case 25:
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real_max = 18;
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break;
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case 30:
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real_max = 18;
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break;
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case 35:
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real_max = 18;
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break;
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case 40:
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real_max = 18;
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break;
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case 45:
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real_max = 18;
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break;
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case 50:
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real_max = 17;
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break;
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case 55:
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real_max = 16.325;
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break;
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case 60:
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real_max = 15;
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break;
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default:
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LOG(ERROR) << "Invalid frame rate: " << frame_rate;
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return exposure_time;
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}
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return exposure_time * real_max / 480.f;
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}
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} // namespace utils
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MYNTEYE_END_NAMESPACE
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