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General information about the virtual Video

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capture device

Axxon PSIM implements a way to work with a virtual Video Capture Devicecapture device. This way assumes that Axxon PSIM operates in a test mode and imitates the video stream feed to virtual Video Capture Device capture device by playing back videos (video recordings). There are two types of virtual video capture devices in Axxon PSIM: 

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Note
titleAttention!

Video recordings with b-frames are not supported.

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

It is not recommended to use LAV Splitter to playback video recordings in the Virtual Video Capture Devicecapture device. The FFDSHOW mediadecoder is preferable.

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Info
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Enable Desktop Experience Feature when using the virtual video capture device on Server OS and avi files.

Creating and configuring the virtual Video

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capture device

Create and configure the virtual Video Capture Device capture device as follows:

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

  6. Specify the storage for the video recording that is used for the video signal imitation in the Basic settings tab (3) of the selected Camera object (4).   

  7. Click the Apply button (5).
    If Axxon PSIM does not find files for playback within 1 minute after clicking the Apply button, the file search will be interrupted.

Note
titleAttention!

The selected folder should not contain the video recordings of internal Axxon PSIM format and AVI-files at the same time.

It is recommended to use one video recording and specify the folder containing only the recording or the path to the file. If you need to use several video recordings, select the recordings with similar codec and resolution. This will help to avoid delays in Axxon PSIM work when switching between the recordings.

Features of playing black the files in the virtual Video

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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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  1. Enter "OPTIONS:playFileOnce=true" in the IP address field on the Video Capture Devicecapture device settings panel:
    1. OPTIONS: enables the use of advanced options.
    2. playFileOnce corresponds to the "Single Play" option (the parameter name should be specified strictly case-sensitive).
    3. after the '=' symbol specify the value that should be applied (the correct values are true, TRUE, or 1 for the "On" value / false, FALSE or 0 for the "Off" value).

  2. Set the ​playFileOnce = 1 registry key (see Registry keys reference guide).

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