MinGW >> OpenCV
show mp4
參考資訊：
1. reading-video-from-file-opencv
main.cpp
#include <stdio.h>
#include <opencv2/opencv.hpp>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
using namespace cv;
using std::string;
int main(int argc, char** argv)
{
Mat frame;
VideoCapture capture("main.mp4");
if(!capture.isOpened()){
printf("failed to load mp4");
return -1;
}
namedWindow("w", 1);
while(1){
capture >> frame;
if(frame.empty()){
break;
}
imshow("w", frame);
waitKey(20);
}
waitKey(0);
return 0;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
project(main)
find_package(OpenCV REQUIRED)
include_directories("/usr/x86_64-w64-mingw32/include/opencv4")
add_executable(main main.cpp)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_aruco430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_bgsegm430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_bioinspired430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_calib3d430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_ccalib430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_core430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_datasets430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_dnn430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_dnn_objdetect430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_dnn_superres430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_dpm430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_face430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_features2d430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_flann430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_fuzzy430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_gapi430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_hfs430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_highgui430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_imgcodecs430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_img_hash430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_imgproc430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_intensity_transform430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_line_descriptor430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_ml430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_objdetect430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_optflow430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_phase_unwrapping430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_photo430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_plot430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_quality430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_rapid430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_reg430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_rgbd430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_saliency430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_shape430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_stereo430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_stitching430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_structured_light430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_superres430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_surface_matching430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_text430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_tracking430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_video430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_videoio430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_videostab430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_xfeatures2d430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_ximgproc430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_xobjdetect430.dll.a)
target_link_libraries(main /usr/x86_64-w64-mingw32/lib/libopencv_xphoto430.dll.a)
toolchain.cmake
SET(CMAKE_SYSTEM_NAME Windows) SET(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc) SET(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++) SET(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres) SET(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32) SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
編譯並且執行
$ cmake . -DCMAKE_TOOLCHAIN_FILE=toolchain.cmake $ make