我一直在尝试在QtCreator中使用cv::VideoCapture::open("< path to video file >")(添加了opencv)。即使程序在“bebug 模式”(调试版本)下运行时没有错误,它在“发布模式”(发布版本)下也会出现以下运行时错误。
调试断言失败文件:f:/dd/vctools/crt_bld/self_x86/src/isctype.c 行:56 表达式:(unsigned)(c+1) <= 256
这是一个仅使用 cv::VideoCapture::open() [用于测试目的] 的简单程序
下面是 .pro 文件
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = untitled
TEMPLATE = app
SOURCES += main.cpp\
mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui
INCLUDEPATH += C:/C/opencv/build/include
INCLUDEPATH += C:/C/opencv/build/include/opencv
LIBS += C:/C/opencv/build/x86/vc10/lib/opencv_highgui240d.lib
LIBS += C:/C/opencv/build/x86/vc10/lib/opencv_highgui240.lib
LIBS += C:/C/opencv/build/x86/vc10/bin/opencv_highgui240d.dll
LIBS += C:/C/opencv/build/x86/vc10/bin/opencv_highgui240.dll
下面是头文件
#include <QMainWindow>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/core/core.hpp>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
cv::VideoCapture vcap;
};
下面是 .cpp 文件
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
vcap.open("C:/Users/ANURUDDHA/pedestrians/ThreePastShop2cor.mpg");
}
MainWindow::~MainWindow()
{
delete ui;
}
当我将 anint
作为参数传递给 cv::VideoCapture::open() [eg: vcap.open(0)] 时,它在调试和发布版本中运行时都没有错误,并成功打开网络摄像头。只有当我将字符串传递给参数时才会出现问题。
有人请对此有所了解。非常感谢。