Simultaneous viewing of archive of multiple cameras🔗

Simultaneous archive viewing mode allows simultaneously view the videos from the archive from all the cameras in the grid, in this case the video corresponding to the same point in time will be displayed in all cells.

Note

It is possible to simultaneously play back video from up to 25 cameras.

Warning

In the Eocortex Client application, when simultaneously playing back the archive hosted on a Linux server, in some situations, the archive may not play back when selecting a playback speed higher than x1.

However, the archive is kept on archive disks in accordance with the archive storage parameters set in the system settings.

The problem described above may be caused by the specifics of the hardware used, the limitations of the data transmission network, and the peculiarities of the system software used on the server.

To switch to Simultaneous archive viewing mode, select the Synchronous archive sub-item of the /win-client/img/ico-archive.png Archive item in the Main menu.

The Timeline is located in the lower right part of the page. The fragments of the timeline corresponding to the video recordings for each camera placed on the screen are marked in gray.

Note

The decimated archive is marked with hatching.

The vertical bar shows the place in the archive that is being displayed currently.

To go to the required time moment, click on the corresponding point on the timeline.

To shift the timeline backward or forward, click on it and, holding the mouse button, shift the scale in the required direction.

The time scale can be changed by rotating the mouse wheel while holding the Ctrl button.

Calendar allows going to a particular place in the archive by specifying the exact date and time.

Note

The timeline displays the time of the archive recordings in accordance with the local time of the computer on which they are viewed, while the server stores the archive according to the Universal Coordinated Time (UTC).

As an example:

The server with the UTC+03:00 time zone settings recorded a fragment of the archive from 12:00 to 12:05 server time.

When viewing this fragment in the Eocortex Client application running directly on the server, it will be displayed on the timeline between 12:00 and 12:05.

But when viewing this fragment on a computer with UTC+05:00 time zone settings, the fragment time on the timeline will be from 14:00 to 14:05.

And when viewing the same fragment on a computer with UTC+01:00 time zone settings, the fragment time on the timeline will be from 10:00 to 10:05.

Warning

Frames encoded in H.264, H.265 and MPEG-4 may freeze during playing, since only the reference frames are displayed. This is due to the specifics of H.264, H.265 and MPEG-4 codec, because the decoding of intermediate frames requires the whole chain, starting with the last reference frame; when playing backwards it can lead to unnecessary consumption of computer resources.

The scaling buttons that are used for setting the interval to be displayed on the timeline are located above the latter.

The playback controls common to all the cells and the filter buttons are located under the timeline.

The playback speeds in the range of 0.1x to 120x are available.

Frame-by-frame archive playback is available with the following step length: Frame, 0.1 sec, 0.5 sec, 1 sec, 5 sec, 10 sec, 30 sec.

Note

With the Frame step length, pressing the Step forward button performs synchronous playback (considering all selected cameras) up to the first available frame.

Warning

Frame-by-frame playback is not available:

if a camera with an archive source Archive on data storage card is used;
if the playing speed is other than 1x;
if the archive is playing back.

It is possible to enable the display of movement and various events on the timeline using the filter buttons.

Note

The events is displayed only when the scale of the timeline is in the range of 1 hour to 5 minutes.

You can combine the events next to each other under the same mark. In such a case, the events can be divided into separate marks when the scale is enlarged.

Should several events be registered simultaneously, they will be indicated with the same mark, whatever the scale. In such a case, you can view them separately in the Event log.

Filter buttons:

/win-client/img/ico-archive-alarms.png Alarms;

/win-client/img/ico-archive-analytics.png Video analytics;

/win-client/img/ico-archive-bookmarks.png Bookmarks;

/win-client/img/ico-archive-actions.png Actions;

/win-client/img/ico-archive-motion.png Motion;

/win-client/img/ico-add-analytics.png Camera analytics.

In the simultaneous mode, you can make one of the cells active by clicking inside the cell. The control elements in the active cell are the same as in the single-camera archive viewing mode.