Truen TCAM-570-X18H, Руководство пользователя

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TCAM-570-X18H User Manual
1.3 Megapixel Speed Dome User Manual
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Encode

Enable Preview
1. Select ON to enable to display video on the monitor that is connected to the composite or HD-SDI
video port.
2. Select the Output format accordingly in the end of the Video page.
Note that when Enable Preview is ON , dual streaming is not available.
When the video is transmitted directly to the monitor through BNC cable, the video does not go thorough
network and encoding. Therefore, there is less delay and no an effect from network limitation .

Resolution
Select video encoding resolution.
From 352x240 to 1280 x 720 resolutions are available now.
(Note: 1280x960 will be supported by further firmware).
Scaling option is used when encoding resolution is different from input compression. Without Scaling
option, input video will be cut according to encoding resolution. On the other hand, if Scaling is selected,
input video will be adjusted according to encoding resolution.

Frame rate
Determine the maximum number of frames per second for the video stream.
1,2,3,4,5,6,8,10,15,20,25 and 30 frame rate can be selected. The actual frame rate of video can be less
than the maximum frame rate set due to the network bandwidth limitation

Preference
Select encoding mode to control video quality: Quality or Bit rate.
If
„Bit rate‟ selected, the video encoding will be effected by the „Bit rate‟ value entered. Therefore, “Bit
rate
” mode is CBR (Constant Bit rate) encoding.
If
„Quality‟ selected, the video encoding will be effected by the quality of image selected. Therefore,
“Quality” mode is VBR (Variable Bit Rate) encoding.

Quality
Select Video quality. 8 levels of quality are available.
Quality mode (VBR encoding) adjusts the bit rate according to the image complexity, using higher
bandwidth for increased activity in the video and lower bandwidth for decreased activity. It is preferred
when the activity change in the video is significant or the network capacity is insufficient to allot certain
bit rate continually.