Page History

...

General information about the virtual Video

...

capture device

Axxon PSIM implements a way to One can work with a virtual Video Capture Device in Axxon PSIM™ software packagevideo capture device. This way assumes that Axxon PSIM™ PSIM operates in a test mode and consists of imitation of imitates the video stream feed to a virtual Video Capture Device capture device by playing back ready-made video (video recording). There In Axxon PSIM 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 mkvMKV, MP4, mp4 and avi AVI formats, for which DirectShow filters (codecs) are installed in Windows OS.
2. Virtual. It is designed to play plays back video recordings in internal the Axxon PSIMinternal format and files in .avi format.only.

Virtual Video Capture Devices do not video capture devices don't support multistreaming mode. To ensure the correct operation of a virtual Video Capture Devicevideo capture device, including the option of displaying the video displaying archive and archiving, you must disable the multistreaming mode (see Configuration of Configuring the multistream video).

It is not recommended to use LAV Splitter for playing clips in the Virtual Video Capture Device. FFDSHOW video decoder We don't recommend using an LAV Splitter to play back videos on the virtual video capture device. The FFDSHOW mediadecoder is preferable.

Creating and configuring

...

the virtual video capture device

To create and configure the virtual video capture device, do the followingCreate and configure a virtual Video Capture Device as follows:

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

6. Specify the storage for the video recording that is you want to be used use for video signal imitation in the Basic settings tab of the selected Camera object.        
   Image Removed
   Image Added

   Info
   title Note
   We don't recommend using videos compressed by the Wavelet codec, as their use significantly increases the load on the server.

7. Click the Apply button.
   If Axxon PSIM does not detect doesn't find files for playback within 1 one minute after clicking the Apply button, the file search is interrupted.
   

   Note
   title Attention!
   The selected folder

...

1. mustn't contain the video recordings of

...

1. the Axxon PSIM internal format and AVI

...

1. files at the same time. We recommend using one video recording and specifying 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 helps to avoid delays in Axxon PSIM work when switching between the recordings.

Features of playing back the files in

...

the virtual Video

...

capture device

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

If you set the path to a separate file, not a folder for a Virtual of the Virtual video capture device type, the file is played once without looping.

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

1. Enter "OPTIONS:playFileOnce=true" in the IP address field on the Video Capture Devicecapture device settings panel:
   1. the OPTIONS: enables includes the use of advanced options.
   2. the The playFileOnce flag value corresponds to the "Single Play" option (you must specify the parameter name must be specified , strictly case-sensitive).
   3. after After the '"=' " symbol, specify the value to that must 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 be played back in the order set in the latest modification. Files You can also be sorted by names sort files by name and time of creation while being played back. The during playback. Set the sorting order is set by the VirtualGrabberSortMode registry parameter (see see Registry keys reference guide).

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