OpenSDK  V4.2.0
Modules
Here is a list of all modules:
 Initialize OPEN SDK
 Allocate session
 API for live view
 Playback API
 Get video information
 Audio API
 Two-way audio
 Intermediate page
 Data API
 Device operation API
 General tool API
 Message notification
 DDNS API
 Errorcode Infomation API