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Below is an explanation for each of the fields on the Video tab in the Video menu item:
•
Encode Mode
: This dropdown box allows the user to select a compression protocol. The system
supports H.264 and MJPEG video compression protocols.
•
Resolution
: This dropdown box allows the user to set the resolution. The system supports various
resolutions and they can be selected from this dropdown list.
•
Frame Rate (FPS)
: This dropdown box allows the user to select a frame rate. Frame rate settings are
measured in frames per second (FPS) and can range from 1f/s to 25f/s in PAL mode and 1f/s to 30f/s
in NTSC mode.
•
Bit Rate Type
: This dropdown box allows the user to select a bit rate type. The system supports two
bit rate types: CBR and VBR. In VBR mode, video quality can be set.
•
Reference Bit Rate
: This is the recommended bit rate value according to the resolution and frame
rate selected.
•
Bit Rate
: This dropdown box allows the user to select a bit rate.
•
Frame Interval
: This field allows the user to set the P frame amount between two I frames. The value
ranges from 1 to 150 seconds. Default value is 50. Recommended value is frame rate *2.
•
Watermark Settings
: This function allows the user to verify if the video has been tampered with.
•
Watermark Character
: This field allows the user to set the watermark’s text. The default string is
Digital CCTV. The maximum length is 85 characters. This string can only include numbers, characters,
and underscores.
Sub Stream is a lower quality stream that allows the feed to take up less resources and bandwidth
when streaming. The Main Stream and the Sub Stream have the same fields. Sub Stream can be
enabled by checking the box next to Enable. To reset to default settings, click the Reset Defaults
button. To refresh the page, click the Refresh button. To save the settings, click the Save button.
5.4.1.2.2 Snapshot
Below is a screenshot that shows the Snapshot tab in the Video menu item:
