I used the source code downloaded from github to install opencv. My Cmake command is as follows: cmake \ -DCMAKE_BUILD_TYPE=Release \ -DCMAKE_INSTALL_PREFIX=/usr/local \ -DOPENCV_ENABLE_NONFREE=1 \ ...
[ WARN:[email protected]] global cap_ffmpeg_impl.hpp:1541 grabFrame packet read max attempts exceeded, if your video have multiple streams (video, audio) try to increase attempt limit by setting environment ...