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Video system: Choice the video system for the TV out (Composite signal). .
The maximum frame rate will be 30 fps when choice the NTSC mode and 25fps at the PAL
mode.
ROI: ROI (Region of Interest) encoding is used to enhance the quality of images which are
specified in advance. These ROI areas image will first priority to send out for internet
transmission when bandwidth is not enough.
The ROI mode is not effect when enable the VBR mode.
Multicast: Multicast settings for streams: Click the items to display the detailed configuration
information. Select the Always multicast option to enable multicast for streams.
The unicast video transmission delivers a stream through point-to-point transmission; multicast,
on the other hand, sends a stream to the multicast group address and allows multiple clients to
acquire the stream at the same time by requesting a copy from the multicast group address
Therefore, enabling multicast can effectively save Internet bandwidth. The ports can be
changed to values between 1025 and 65535. The multicast RTP port must be an even number
and the multicast RTCP port number is the multicast RTP port number plus one, and thus is
always odd.
If the multicast RTP video ports are incorrectly assigned, the following warning message will
be displayed.
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