适用于Ubuntu 20.04的opencv-3.3.1资源;经过我的修改,解决了error: ‘CODEC_FLAG_GLOBAL_HEADER’ was not declared in this scope、error: ‘AVFMT_RAWPICTURE’ was not declared in this scope、error: invalid conversion from ‘const char*’ to ‘char*’ [-fpermissive]
856 | char* str = PyString_AsString(obj);等错误。