15.3 Configure the settings relating to the priority stream [System]
Note
SW175/SW174W/SW172/ST165/ST162 do not support MPEG-4.
Click the [System] tab on the “User mng.” page. (→9.1 How to display the setup menu, 9.2 How to operate the setup menu)
The description below is the configuration of the priority stream that can transmit images without deteriorating the image quality and refresh interval even when multiple users access concurrently.
Priority stream
[Activation]
Select “On” or “Off” to determine whether or not to use the priority stream.
Default: Off
Note
When “On” is selected for “Activation” of “Priority stream”, number of users who can access the camera may be limited.
[Destination IP address(1)]
Enter the first destination IP address.
[Destination IP address(2)]
Enter the second destination IP address.
[Stream type]
Select either “JPEG”, “H.264/MPEG-4(1)” or “H.264/MPEG-4(2)”.
JPEG: JPEG images will be transmitted.
H.264/MPEG-4(1): H.264(1) (or MPEG-4(1)) images will be transmitted.
H.264/MPEG-4(2): H.264(2) (or MPEG-4(2)) images will be transmitted.
Default: JPEG
Note
When “Best effort” is selected for “Transmission priority” of “H.264 (MPEG-4)”, bit rate will vary between the maximum and minimum rates while images are being transmitted.
:
When “H.264” is selected for “Recording format”, it is impossible to transmit H.264(2) images. In this case, “H.264/MPEG-4(2)” is invalidated.
[Refresh interval*]
Select the refresh interval from the following.
This setting is validated only when “JPEG” is selected for “Stream type”.
0.1fps/ 0.2fps/ 0.33fps/ 0.5fps/ 1fps/ 2fps/ 3fps/ 5fps/ 6fps/ 10fps/ 12fps*/ 15fps*/ 30fps*
0.1fps/ 0.2fps/ 0.33fps/ 0.5fps/ 1fps/ 2fps/ 3fps/ 5fps/ 6fps*/ 10fps*/ 12fps*/ 15fps*/ 30fps*
Default: 1fps
Note
When “On” is selected for “H.264 (MPEG-4) transmission”, the transmission interval may be longer than the set value when any value with an asterisk (*) on the right is selected.
[Image capture size]
Select the image capture size from the following.
This setting is validated only when “JPEG” is selected for “Stream type”.
When “4:3” is selected for “Aspect ratio”
:
QVGA/ VGA/ 1280x960
:
QVGA/ VGA/ 800x600
When “4:3 (VGA)” is selected for “Aspect ratio”
QVGA/ VGA/ 1280x960
When “4:3 (800x600)” is selected for “Aspect ratio”
QVGA/ 800x600/ 1280x960
When “16:9” is selected for “Aspect ratio”
:
320x180/ 640x360/ 1280x720
:
320x180/ 640x360
Default: 1280x960 /VGA