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camera.cpp
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camera.cpp
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#include "camera.h"
#include <QDebug>
Camera::Camera(QObject *parent) : QObject(parent)
{
cap = new cv::VideoCapture (this->countCameras());
cap->set(CV_CAP_PROP_FRAME_WIDTH, 640);
cap->set(CV_CAP_PROP_FRAME_HEIGHT, 480);
//this->isAutoFocus = false;
this->autoFocusCheck();
double dWidth = cap->get(CV_CAP_PROP_FRAME_WIDTH);
double dHeight = cap->get(CV_CAP_PROP_FRAME_HEIGHT);
std::cout << "Camera input :"<<dWidth<<" X "<<dHeight<<std::endl;
}
int Camera::countCameras(){
cv::VideoCapture temp_camera;
cv::Mat tem;
int maxTested = 10;
for (int i = 0 ; i < maxTested ; i++){
cv::VideoCapture temp_camera(i);
temp_camera.read(tem);
bool res = (tem.data);
temp_camera.release();
if(res){
this->deviceID = i;
return i;
}
}
tem.release();
return maxTested;
}
void Camera::imgRequest(){
cap->read(this->img);
//this->autoFocusCheck();
if(this->img.data){
//cv::Mat send;
cv::cvtColor(this->img,send,CV_BGR2RGB);
emit sendImg(send);
}else{
qDebug ("Camera send img failed\n");
}
}
void Camera::autofocus(int a){
QProcess setAutoFocus;
QStringList command;
if(this->isAutoFocus){
if(a == Qt::Checked){
if(this->deviceID == 0){
command << "v4l2-ctl -c "<< "focus_auto=0";
}else{
command << "v4l2-ctl -d /dev/video"<< QString::number(this->deviceID)<<" -c focus_auto=0";
}
QString cmd = command.join("");
qDebug() << cmd;
setAutoFocus.start(cmd);
setAutoFocus.waitForFinished();
this->isAutFocusDisable = true;
}else if(a == Qt::Unchecked){
if(this->deviceID == 0){
command << "v4l2-ctl -c "<< "focus_auto=1";
}else{
command << "v4l2-ctl -d /dev/video"<< QString::number(this->deviceID)<<" -c focus_auto=1";
}
QString cmd = command.join("");
qDebug() << cmd;
setAutoFocus.start(cmd);
setAutoFocus.waitForFinished();
this->isAutFocusDisable = false;
}
}
}
void Camera::autoFocusCheck(){
QProcess process;
QStringList command;
QByteArray buffer;
QString cmd;
this->isAutoFocus = false;
bool status = false;
if(this->deviceID==0){
process.start("v4l2-ctl -l");
cmd = QString("v4l2-ctl -l");
}else{
command << "v4l2-ctl -d /dev/video"<< QString::number(this->deviceID)<<" -l";
cmd = command.join("");
process.start(cmd);
}
while (process.waitForFinished());
buffer.append(process.readAll());
//qDebug() << "Buffer data" << buffer;
qDebug() << "Cmd: " << cmd;
for(int i =0;i < buffer.size() ; i++){
if(buffer.at(i) == 'f' && buffer.at(i+1) == 'o' && buffer.at(i+2) == 'c' && buffer.at(i+3) == 'u' &&
buffer.at(i+4) == 's' && buffer.at(i+5) == '_' && buffer.at(i+6) == 'a' && buffer.at(i+7) == 'u' &&
buffer.at(i+8) == 't' && buffer.at(i+9) == 'o' ){
this->isAutoFocus = true;
status = true;
}
}
emit cameraCheck(status);
}
void Camera::focusValue(int in){
QProcess setFocusValue;
if(this->isAutoFocus && this->isAutFocusDisable ){
QStringList command;
if(this->deviceID == 0){
command << "v4l2-ctl -c "<<"focus_absolute="<<QString::number(in);
}else{
command << "v4l2-ctl -d /dev/video"<<QString::number(this->deviceID)<<" -c focus_absolute="<<QString::number(in);
}
QString cmd = command.join("");
//qDebug() << "value: " <<in;
qDebug() << cmd;
setFocusValue.start(cmd);
setFocusValue.waitForFinished();
}
}
void Camera::sendID(){
emit cameraID(this->deviceID);
}