Dahua NVR1A-4P Series, Руководство пользователя

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4.6.4 Mark Playback
Please make sure your purchased device support this function. You can use this function only if
you can see the mark playback icon on the Search interface ( Figure 4-93 or Figure 4-94 ).
When you are playback record, you can mark the record when there is important information. After
playback, you can use time or the mark key words to search corresponding record and then play. It is very
easy for you to get the important video information.

Add Mark
When system is playback, click Mark button , you can go to the following interface. See Figure 4-98.
Figure 4-98

Playback Mark
During 1-window playback mode, click mark file list button in Figure 4-93 or Figure 4-94, you can go
to mark file list interface. Double click one mark file, you can begin playback from the mark time.

Play before mark time
Here you can set to begin playback from previous N seconds of the mark time.
Note
Usually, system can playbacks previous N seconds record if there is such kind of record file. Otherwise,
system playbacks from the previous X seconds when there is such as kind of record.

Mark Manager
Click the mark manager button on the Search interface (Figure 4-93 or Figure 4-94); you can go
to Mark Manager interface. See Figure 4-99. System can manage all the record mark information of
current channel by default. You can view all mark information of current channel by time.