Warning! This is an implementation hint article. Read this first.
To understand this part, please read the following hint first:
For ONVIF dual-streaming, Genius Vision NVR will call GetProfiles to obtain a list of supported media profiles. Each profile token will be listed in the stream selection of Genius Vision NVR. To support dual-streaming, at least two profiles must be supported. Please note only those profiles matching the designated video source (as specified by Channel, explained here) will be used.