Windows10下OpenCV C++的VideoWriter无法打开求助

在Windows10系统的Visual Studio环境中，尝试使用OpenCV C的VideoWriter，但无法打开并输出错误。Python版本的VideoWriter可以正常工作，本人刚接触C，可能忽略了基础问题，求帮助。

使用的代码 #

#include <iostream> // for standard I/O
#include <string>   // for strings
#include "opencv2/opencv.hpp"

using namespace std;
using namespace cv;

int main(int argc, char* argv[])
{
    VideoWriter outputVideo1;
    outputVideo1.open("testing.avi", VideoWriter::fourcc('M', 'J', 'P', 'G'), 10, Size(1936, 1216), false);
    if (!outputVideo1.isOpened())
    {
        cout << "failed opening" << endl;
    }
   
}

出现的错误 #

error: (-215:Assertion failed) !filename_pattern.empty() in function 'cv::CvVideoWriter_Images::open'

已尝试的操作 #

• 更换不同的文件路径、名称、扩展名
• 切换不同的fourcc编码
• 运行OpenCV官方教程中的源码，仍出现相同错误
• 调整open调用方式后，得到错误：

  OpenCV(4.9.0) C:\GHA-OCV-1_work\ci-gha-workflow\ci-gha-workflow\opencv\modules\videoio\src\cap_images.cpp:216: error: (-215:Assertion failed) !filename.empty() in function 'cv::icvExtractPattern'

补充日志信息 #

启用日志后发现两个插件加载失败：

cv::impl::getPluginCandidates Found 2 plugin(s) for GSTREAMER
\OpenCV\build\x64\vc16\bin\opencv_videoio_gstreamer4100_64.dll => FAILED

cv::plugin::impl::DynamicLib::libraryLoad load C:\OpenCV\build\x64\vc16\bin\opencv_videoio_intel_mfx4100_64.dll => FAILED

但以下插件加载成功，个人认为不是问题根源：

cv::plugin::impl::DynamicLib::libraryLoad load C:\OpenCV\build\x64\vc16\bin\opencv_videoio_msmf4100_64.dll => OK

后续步骤抛出异常：

cv::impl::PluginBackend::initWriterAPI Video I/O: plugin is ready to use 'Microsoft Media Foundation OpenCV Video I/O plugin'

[ WARN:0@0.011] global cap.cpp:645 cv::VideoWriter::open VIDEOIO(CV_IMAGES): raised OpenCV exception:

430: error: (-215:Assertion failed) !filename_pattern.empty() in function 'cv::CvVideoWriter_Images::open'

日志未明确指出错误根源，若无关可忽略此补充。

内容的提问来源于stack exchange，提问作者TheSloth