Cmake 编译opencv430 的extra 和nonfree 库下载的.cache.zip

CMake opencv时Download: opencv_ffmpeg.dll、ippicv、face_landmark_model.dat等失败的解决方法 CMake Warning at cmake/OpenCVDownload.cmake:193 (message): FFMPEG: Download failed: 7;"Couldn't connect to server" For details please refer to the download log file: D:/study/opencv_with_contrib_test_sln/CMakeDownloadLog.txt Call Stack (most recent call first): 3rdparty/ffmpeg/ffmpeg.cmake:20 (ocv_download) cmake/OpenCVFindLibsVideo.cmake:200 (download_win_ffmpeg) CMakeLists.txt:636 (include)