[英]capture image from IP camera through ffmpeg in command line or opencv getting a gray image
试试这个https://gist.github.com/jamek/1dda2add62b3f7ac415a
g++ -s -o ffmpeg_rtsp rtsp.cpp -lavcodec -lavutil -lswscale -lavformat
运行: ./ffmpeg_rtsp "your rtsp stream address"
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