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General information about the virtual Video Capture Device

One can Axxon PSIMimplements a way to work with a virtual Video Capture Device in Axxon PSIM™ software package. This way assumes that Axxon PSIM™ PSIM operates in a test mode and consists of imitation of imitates the video stream feed to virtual Video Capture Device by playing back ready-made video recordingvideos (video recordings). There are two types of virtual video capture devices in Axxon PSIM: 

1. Virtual bench. It is designed to play plays back video recordings in mkv, mp4 and avi formats for which DirectShow codecs are installed in on Windows OS.
2. Virtual. It is designed to play plays back video recordings in internal Axxon PSIM  Intellect format and files in .avi format.

Virtual Video Capture Devices do not support multistreaming. To ensure the correct operation of a virtual Video Capture Device, including displaying the video displaying archive and archiving, disable the multistreaming (see Configuration of multistream video).

It is not recommended to use LAV Splitter for playing clips to playback video recordings in the Virtual Video Capture Device. The FFDSHOW video decoder mediadecoder is preferable.

Creating and configuring

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the virtual Video Capture Device

Create and configure a the virtual Video Capture Device as follows:

1. Set the Use virtual grabber checkbox (The Settings panel of the Video subsystem section), having . Before that shut down Axxon PSIM™ beforehandPSIM.
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2. On the Hardware tab (1) create the Video Capture Device object (2).
3. Set the Virtual or Virtual bench type of the video capture device Video Capture Device depending on the type of the file that will be used for imitation of video stream feedthe video signal (3).
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4. Click the Apply button (4).
5. Create the Camera child object for the Video Capture Device (2).

6. Specify the storage for the video recording that is to be used for the video signal imitation in the Basic settings tab (3) of the selected Camera object (4).            
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7. Click the Apply button (5).
   If Axxon PSIM does not detect find files for playback within 1 minute after clicking the Apply button, the file search is will be interrupted.

Features of playing black the files in

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the virtual Video Capture Device

As a result of the above settings, video recording file from the selected folder will be played back in a loop. 

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You can disable looping of a separate file in for the Virtual bench type device in one of the following ways:

1. Enter "OPTIONS:playFileOnce=true" in the IP address field on the Video Capture Device settings panel:
   1. the OPTIONS: enables the use of advanced options.
   2. the playFileOnce flag corresponds to the "Single Play" option (the parameter name must should be specified strictly case-sensitive).
   3. after the '=' symbol , specify the value to that should be applied is indicated (the correct values are ' true', ' TRUE', or ' 1 ' for the value "On" value / ' false', ' FALSE ' or ' 0 ' for the value "Off" value).
      
      
2. Set the ​playFileOnce = 1 registry key (see Registry keys reference guide).

If there are several files in the folder, they are to will be played back in the order set in the latest modification. Files Files can also be sorted by names name and time of creation while being played backduring playback. The sorting order is set by the VirtualGrabberSortMode registry parameter (see Registry keys reference guide).

When playing back the files, the system sends events to the Debug window showing displaying the playback status – status (see CAM). There are also are reactions for controlling videos playback video recordings playback in virtual grabber Video Capture Device using the scripts (see GRABBER).