成功移植，代码没有错误，希望对你有用-Successful transplant, no error code, I hope useful to you,,,,,,,,

研究rtmpdump的源码，需要openssl，和zlib，这个就是zlib源码，此代码对于研究rtmpdump很有帮助-Openssl research rtmpdump source, needs, and zlib, this is the zlib source code, the code for studying rtmpdump very helpful