diff options
Diffstat (limited to 'app/camera.cpp')
| -rw-r--r-- | app/camera.cpp | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/app/camera.cpp b/app/camera.cpp deleted file mode 100644 index 8ee99c9..0000000 --- a/app/camera.cpp +++ /dev/null @@ -1,139 +0,0 @@ -/* - * Copyright (c) 2017 TOYOTA MOTOR CORPORATION - * - * 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 "camera.h" -#include <QPainter> -#include <opencv2/imgproc.hpp> - -#include <linux/videodev2.h> -#include <fcntl.h> -#include <unistd.h> -#include <sys/ioctl.h> - -using namespace cv; - -Camera::Camera() { - running = false; - timer = new QTimer(this); - capture = new VideoCapture(); - - connect(timer, SIGNAL(timeout()), this, SLOT(grab())); -} - -Camera::~Camera() { - if (timer->isActive()) - timer->stop(); - if (capture && capture->isOpened()) - capture->release(); - delete timer; - delete capture; -} - -void Camera::paint(QPainter *painter) { - painter->drawImage(0, 0, image); -} - -void Camera::enumerateCameras() { - int maxID = 20; - for (int idx = 2; idx <maxID; idx++){ - std::stringstream no; - no << "/dev/video" << idx; - qDebug() << idx; - int fd = open(no.str().c_str(), O_RDWR); - if (fd != -1){ - struct v4l2_capability cap; - - if (ioctl(fd,VIDIOC_QUERYCAP,&cap) != -1){ - if ((cap.capabilities & (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING)) == (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING)){ - qDebug()<< (char*)(cap.driver) << ">" << (char*)(cap.card) << ">" << (char*)(cap.bus_info);// << (cap.version>>16)&0xFF << (cap.version>>8)&0XFF << cap.version&0xFF; - cam_arr.push_back(idx); // vector of all available cameras - } - } - close(fd); - } - } - - camcnt = cam_arr.length(); - cam_arr_bak = cam_arr; -} - -void Camera::start(int no, int fps, QString res) { - try{ - for (QVariantList::iterator iter = cam_arr_bak.begin(); iter != cam_arr_bak.end(); ++iter){ - if (*iter == no){ - cam_arr_bak.erase(iter); - break; - } - } - - if (capture && capture->open(no)){ - capture->set(CAP_PROP_FRAME_WIDTH, res.section("*", 0, 0).toInt()); - capture->set(CAP_PROP_FRAME_HEIGHT, res.section("*", 1, 1).toInt()); - - if (fps > 0){ - timer->start(1000/fps); - running = true; - emit isrunningChanged(running); - - emit camraCntChanged(cam_arr_bak); - } - camnumbackup = no; - } - } - catch(cv::Exception & e) { - qDebug() << "als-meter-demo open device error: " << e.msg.c_str(); - } -} - -void Camera::stop() { - cam_arr_bak.push_back(camnumbackup); - - if (timer->isActive()) - timer->stop(); - if (capture && capture->isOpened()) - capture->release(); - image = QImage(); - update(); - running = false; - emit isrunningChanged(running); - - emit camraCntChanged(cam_arr_bak); -} - -QVariantList Camera::camranum() const{ - return cam_arr_bak; -} - -int Camera::cameraCnt() { - return camcnt; -} - -bool Camera::isrunning() const{ - return running; -} - -void Camera::grab() { - if (capture && capture->isOpened()){ - Mat frame; - capture->read(frame); - - if (!frame.empty()){ - image = QImage((const uchar*)(frame.data), frame.cols, frame.rows, frame.step, QImage::Format_RGB888).rgbSwapped(); - image = image.scaled(this->width(), this->height(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation); - update(); - } - } -}
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