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Administrating the Device
Rate Control:
Defines the rate control method of this profile. There are three options: Constant Bit Rate
(CBR), Variable Bit Rate (VBR), and Enhanced Variable Bit Rate (EVBR).
For CBR, the video bit rate is between low to high bandwidth based on different resolutions.
User can set the desired bit rate to match the limitation of bandwidth.
For VBR, user should choose the quality level to set the video quality rather than bit rate.
The quality level is between 1 and 100. The higher value can reach the better quality but of
course will consume higher bandwidth.
For EVBR, the video bitrate is based on normal VBR mode. However, the bitrate can be
limited to the max bitrate while lots of motion in video.
Max Frame Rate:
Defines the targeted frame rate of this profile. For example, set the frame rate to 30 fps, then
the image will be updated for 30 frames per second as possible. User need to set
reasonable max frame rate versus video quality under the limited bandwidth.
GOP Control:
Defines the Intra/Inter-frame (I/P) ratio of this profile. For example, set the GOP to 30, then
the video stream will have one Intra-frame every 30 frames.
Multicast:
Enable or disable the multicast function.
Multicast Video:
IP address and port for multicast video streaming of the selected profile.
Multicast Audio:
IP address and port for multicast audio streaming of the selected profile.
Time to live:
Time to live (TTL) is a mechanism that limits the lifespan of data in a computer or network.
Once the prescribed event count or timespan has elapsed, data is discarded. TTL prevents a
data packet from circulating indefinitely.
Always Enable Multicast:
Multicast streaming is always enabled or by request.
Warning!!!
To enable the multicast streaming, you shall make sure your Intranet
does support multicast function. Otherwise, your Intranet may occur network storm seriously.
ROI
ROI means Region of Interest. Use this page to specify location and size of ROI windows.
Only the maximum resolution profiles can be defined as ROI. In this model, user can define
maximum three ROI windows.
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