lz4b：lz4 erlang绑定 框架API 帧压缩 lz4b_frame : compress ( binary ()) -> { ok , binary ()} | { error , atom ()}. 帧解压缩 lz4b_frame : decompress ( binary ()) -> { ok , binary ()} | { error , atom ()}. 框架信息 lz4b_frame : read_frame_info ( binary ()) ->