need the following requirement from recorder manufacturer for SDK integration
C# .NET SDK - 64 bit .Net Framework (Must provide static RTSP URLs for Live view and playback and for remaining functionalities through SDK, API, ONVIF or Static RTSP).
Supply SDK with sample code.
Programming manual document.
List of SDK supported equipment.
Compatible device with model, manufacturer part no & Firmware list for the given SDK.
Support mail IDs, Skype IDs & immediate support contact information from manufacturer.
Need MINIMUM 21 WORKING DAYS for SDK integration
If SDK is not complicated depends on the sample code, Programming manual, Support from the manufacturer.