ViconNet V8.1.X - missing packet causes tearing video

CONDITION: Video is tearing or missing information in the scene. This may occur in either the live display and/or playback mode. This may have occurred after upgrading to V8.1 and was not noticeable in prior version. See attached example photos of symptom.

REASON: ViconNet by default will stream video via UDP. The condition is caused by dropped network packets or a slow network connection. This would be similar to satellite television where at times the picture breaks and pixelates.

Prior to V8.1, these conditions would cause the video to freeze and wait for the next reference picture. This in turn could also cause gaps in the recording.

In V8.1, we now just display what we receive and the tearing that you see is the lost packets. As opposed to the scene freezing up and/or lost recording data during those times as in previous versions.

RECOMMENDED SOLUTION: 
Determine the cause of the network delay and/or dropped packets. This will require a networking professional to assist as these conditions can occur for a variety of reasons.

WORKAROUND:
V8.1 can be changed to operate like previous versions by modifying a file on any machine exhibiting the symptom. But remember that this is not a solution for a network issue. Therefore you will encounter the scene freezing up and/or lost recording data during those times as in previous versions.

Attached is an application file called VNconfig which you can install on the machine(s) in question. 
Procedure:
1. Download and Unzip the attachment named VNUtils.zip. (to desk top or thumb drive)
2. Close the ViconNet or VMDC or Web Server application accordingly.
3. Go to C:ViconNet/Vnver and install the folder named VNUtils. (if one already exists you can replace it with this new one)
4. Open the folder and run the "VNConfig with Missing Packets setting.exe".
5. Under General System Settings, choose the type of Vicon software accordingly.
6. Check the box that says "Check missing packets".
7. Start the Vicon application and test to see if the scene condition has changed.

 

 

 

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