#include?“camera.h“
#include?“ui_camera.h“
#include?“libv4l/include/libv4l2.h“
#include?“libv4l/include/libv4lconvert.h“

#include?
#include?

Camera::Camera（）?:?ui（new?Ui::Camera）
{
????ui->setupUi（this）;
????setGeometry（0?0?1024?600）;

????//?fps?display?init
????fps_label?=?new?QLabel（“fps:?0?Hz“?this）;
????statusBar（）->addPermanentWidget（fps_label）;
????timer?=?new?QTimer（this）;
????connect（timer?SIGNAL（timeout（））?this?SLOT（update_fps（）））;

????video_ops?=?new?v4l2_ops（）;

????QDir?dir（“/dev“）;
????QStringList?dev?=?dir.entryList（QDir::System）;
????for?（int?i?=?0;?i?????????QString?one?=?dev.at（i）.trimmed（）;
????????if?（one.contains（“video“））?{
????????????ui->comboBox->addItem（one）;
????????}
????}
}

void?Camera::startCamera（）
{
????connect（video_ops?SIGNAL（get_one_frame（QImage））?this?SLOT（get_one_frame（QImage）））;
????video_ops->open（ui->comboBox->currentText（））;
????frame_count?=?0;

????//?init?info
????ui->lineEdit->setText（video_ops->dev_name）;
????ui->lineEdit_2->setText（video_ops->dri_name）;
????ui->lineEdit_3->setText（video_ops->card_name）;
????ui->lineEdit_4->setText（video_ops->bus_info）;
????ui->lineEdit_5->setText（QString（“%1x%2“）.arg（video_ops->cur_resolutin.width（））.arg（video_ops->cur_resolutin.height（）））;

????//?init?setting?Image?Format:
????ui->comboBox_2->clear（）;
????for?（int?i?=?0;?i?list_fmt_info.size（）;?i++）?{
????????fmt_info?*node?=?video_ops->list_fmt_info.at（i）;
????????ui->comboBox_2->addItem（node->fmt_desc?QVariant（node->list_resolutin））;
????}

????ui->takeImageButton->setEnabled（true）;
????ui->actionstartCamera->setEnabled（false）;
????ui->actionstopCamera->setEnabled（true）;
????ui->captureWidget->setEnabled（true）;

????ui->label_2->clear（）;
????displayV4l2（）;
}

void?Camera::stopCamera（）
{
????if?（video_ops->isRunning（））?{
????????disconnect（video_ops?SIGNAL（get_one_frame（QImage））?this?SLOT（get_one_frame（QImage）））;
????????video_ops->close（）;
????????qDebug（）?<????}

????fps_label->setText（“fps:?0?Hz“）;
????timer->stop（）;

????ui->comboBox_2->clear（）;
????ui->comboBox_3->clear（）;
????ui->actionstartCamera->setEnabled（true）;
????ui->actionstopCamera->setEnabled（false）;
????ui->captureWidget->setEnabled（false）;

????ui->label_2->clear（）;
}

void?Camera::get_one_frame（QImage?img）
{
//????qDebug（）?<ame“;
????if?（!timer->isActive（））?{
????????timer->start（1000）;
????}
????if?（ui->stackedWidget->currentIndex（）?==?1）?{
????????last_image?=?img;
????????ui->label_2->setPixmap（QPixmap::fromImage（img.scaled（ui->label_2->size（））））;
????}
????frame_count++;
}


void?Camera::takeImage（）
{
????ui->lastImagePreviewLabel->setPixmap（QPixmap::fromImage（last_image.scaled（ui->lastImagePreviewLabel->size（）?Qt::KeepAspectRatio?Qt::SmoothTransformation）））;

????//?Display?captured?image?for?4?seconds.
????displayCapturedImage（）;
????QTime

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-01-12?15:18??qcamera_v4l2_lib\
?????文件????????4399??2020-01-12?15:07??qcamera_v4l2_lib\camera.cpp
?????文件?????????878??2020-01-12?15:08??qcamera_v4l2_lib\camera.h
?????文件???????15326??2020-01-06?22:47??qcamera_v4l2_lib\camera.ui
?????目錄???????????0??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\
?????文件???????20060??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\ChangeLog
?????文件???????26941??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\COPYING.LIB
?????目錄???????????0??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\include\
?????文件????????2932??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\include\libv4l1.h
?????文件????????4794??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\include\libv4l2.h
?????文件????????4787??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\include\libv4lconvert.h
?????目錄???????????0??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4l1\
?????文件????????2262??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4l1\libv4l1-priv.h
?????文件???????25455??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4l1\libv4l1.c
?????文件????????5912??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4l1\log.c
?????文件????????3053??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4l1\v4l1compat.c
?????目錄???????????0??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4l2\
?????文件????????3021??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4l2\libv4l2-priv.h
?????文件???????46260??2019-10-25?23:07??qcamera_v4l2_lib\libv4l\libv4l2\libv4l2.c
?????文件????????8296??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4l2\log.c
?????文件????????4143??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4l2\v4l2convert.c
?????目錄???????????0??2019-10-25?22:38??qcamera_v4l2_lib\libv4l\libv4lconvert\
?????文件???????18539??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4lconvert\bayer.c
?????目錄???????????0??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4lconvert\control\
?????文件????????2495??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4lconvert\control\libv4lcontrol-priv.h
?????文件???????24391??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4lconvert\control\libv4lcontrol.c
?????文件????????2892??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4lconvert\control\libv4lcontrol.h
?????文件????????9998??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4lconvert\crop.c
?????文件????????7424??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4lconvert\flip.c
?????文件????????2508??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4lconvert\helper-funcs.h
?????文件????????6484??2019-10-25?22:19??qcamera_v4l2_lib\libv4l\libv4lconvert\helper.c
............此處省略33個文件信息