Development of a library for clients of ONVIF video cameras: Challenges and solutions

Abstract

Abstract-The interoperability of IP video equipment is a critical problem for surveillance systems and other video application developers. ONVIF is one of the two specifications addressing the standardization of networked devices interface, and it is based on SOAP. This paper addresses the development of an ONVIF library to develop clients of video cameras. We address the choice of a web services toolkit, and how to use the selected toolkit to develop a basic library. From that, we discuss the implementation of features that are important challenges for developers and, therefore, opportunities for providing higherlevel functionalities. The proposed solutions result from the implementation of library that has been validated in industry.

UMOC – A C Library for Clients of ONVIF Network Video Transmitters - Library Design and Device Discovery Support

“…Figure 1 introduces the library, showing how it is built and its integration with application code. We have used gSOAP toolkit (Engelen and Gallivan, 2002) to develop the library, see (Lopes, 2013) for more information. It is built on top of ONVIF client stubs generated by gSOAP and plugins supporting base web services (e.g., WS-Discovery, WS-Security) from different organizations.…”