User`s manual

VIVOTEK

116 - User's Manual

The alarm trigger includes: motion detection and DI detection. Please refer to Event Settings on page 98.

■ 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 video stream as the source of recording.

► To enable recording notication please congure Event settings rst . Please refer to page 98.

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 video stream; otherwise, it will only

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

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: In the event of network failure, the server will start to record les to the local storage (SD

card).

NOTE: