.. _video-wall:

*********************************************
Video Wall
*********************************************

FindFace Multi allows for basic video surveillance. Use the Video Wall to display the video image from cameras and video files.


.. rubric:: In this chapter:

.. contents::
   :local:

Configure Video Wall
===========================

You can set up the Video Wall features that determine how it highlights objects in the video:

* turn on/off the bbox and attribute data display for faces, cars, and bodies
  
  .. note:: 
     The attribute data are displayed if you have previously enabled neural networks for attribute recognition. See :ref:`face-features`, :ref:`cars`, :ref:`bodies`. 

* enable blurring unmatched objects to comply with personal data protection laws (GDPR and similar)   

To configure the Video Wall, do the following:

#. Open the ``/etc/findface-security/config.py`` configuration file. 

   .. code::

      sudo vi /etc/findface-security/config.py

#. Find the ``FFSECURITY_UI_CONFIG`` -> ``available_video_wall_features`` section.

#. Set ``"faces"``, ``"cars"``, ``"bodies"`` ``True`` or ``False`` to enable/disable the bbox and attribute data display for the relevant objects.

   .. code::


      FFSECURITY_UI_CONFIG = {
          ...
          "available_video_wall_features": {
              "faces": True,
              "cars": False,
              "bodies": True,              
              ...
          }
      }
 
#. Set ``"gdpr": True`` to enable blurring all unmatched objects displayed on the Video Wall. 

   .. tip::
      To fully comply with the personal data protection laws, follow :ref:`this guide <gdpr>`. 

   .. code::

      FFSECURITY_UI_CONFIG = {
          ...
          "available_video_wall_features": {
              ...
              "gdpr": True
          }
      }


#. Restart ``findface-security``.

   .. code::

      sudo systemctl restart findface-security.service

.. seealso::
   :ref:`gdpr`


Display Video
==========================

The Video Wall offers two modes, four predefined layouts in each: 

* video streaming
* video streaming with object detection and episode feed

To display video on the Video Wall, do the following:  

#. Navigate to the :guilabel:`Video Wall` tab.
#. Select a mode and camera layout.

    |video_wall_en|
 
     .. |video_wall_en| image:: /_static/video_wall_en.png
        :scale: 40%

     .. |video_wall_ru| image:: /_static/video_wall_ru.png
        :scale: 40%

#. Drag-n-drop cameras of your choice to the Video Wall. 

You can work with the episode feed on the Video Wall in the :ref:`same manner <episodes>` as with the :guilabel:`Episodes` tab, including the following basic filters:

* :guilabel:`Watch Lists`
* :guilabel:`Matches`.
* :guilabel:`Acknowledged`.