VIVOTEK
User's Manual - 81
Media > Video
Stream settings Advanced Mode
Enable time shift caching stream: Select one stream as the time shift cache stream� This function enable
the time shift cache stream on the Network Camera, which will store video in the camera’s embedded
memory for a period of time depending on the cache memory on each Network Camera� This function
can work seamlessly with VIVOTEK’s ST7501 recording software� When an event occurs, the recording
software can request time shift cache stream from the camera, which allows users to retrieve video
footages taken before the occurence of an event�
This Network Camera supports multiple streams with frame size ranging from 176 x 144 to 1920 x 1080.
The denition of multiple streams:
■ Stream 1: Users can dene the "Region of Interest" (viewing region) and the "Output Frame Rate" (size
of the live view window)�
■ Stream 2: Users can dene the "Region of Interest" (viewing region) and the "Output Frame Rate" (size
of the live view window)�
■ Stream 3: Users can dene the "Region of Interest" (viewing region) and the "Output Frame Rate" (size
of the live view window)�
■ Stream 4 (Global view stream): This stream captures the full view of the video and users can also
dene the "Output Frame Rate" (size of the live view window).
Click Viewing Window to open the viewing region settings page� On this page, you can set the Region
of Interest and the Output Frame Size for streams 1 ~ 3�
Please follow the steps below to set up those settings for an individual stream:
1. Select a stream to congure its viewing region.
2� Select a Region of Interest from the drop-down list. The oating frame, the same as the one in the
Gloabl View window on the home page, will resize accordingly. To set up a customized viewing region,
you can also resize and re-position the oating frame to a desired position with your mouse.
3� Choose a proper Output Frame Size from the drop-down list according to the size of monitored
device�