Vivotek FD8335H User Manual download pdf (Page 110)

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110 - User's Manual

The alarm trigger includes: motion detection and DI detection. Please refer to Event Settings on page 92.

■ Pre-event recording and post-event recording

The Network Camera has a buffer area; it temporarily holds data up to a certain limit� Enter a number

to decide the duration of recording before and after a trigger is activated�

■ Priority: Select the relative importance of this recording (High, Normal, or Low). Recording with a higher

priority setting will be executed rst.

■ Source: Select a stream for the recording source.

NOTE

► To enable recording notication please congure Event settings rst . Please refer to page 92.

If you enable adaptive recording and enable time-shift cache stream on Camera A, only when an event

is triggered on Camera A will the server record the full frame rate streaming data; otherwise, it will only

request the I frame data during normal monitoring, thus effectively save lots of bandwidths and storage

space�

Time

Bandwidth

Activity Adaptive Streaming

for Dynamic Frame Rate Control

I frame ---> Full frame rate ---> I frame

Continuous recording

NOTE

► To enable adaptive recording, please make sure

you’ve set up the trigger source such as Motion

Detection, DI Device, or Manual Trigger�

► When there is no alarm trigger:

- JPEG mode: record 1 frame per second.

- H.264 mode: record I frame only.

- MPEG-4 mode: record the I frame only.

► When the I frame period is >1s on Video settings

page, firmware will force decrease the I frame

period to 1s when adaptive recording is enabled�

Please follow the steps below to set up the recording�

1� Trigger

Select a trigger source�

■ Schedule: The server will start to record les on the local storage or network storage (NAS).

■ Network fail: Since network fail, the server will start to record les on the local storage (SD card).

NOTE:

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Vivotek FD8335H User Manual Page 110