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WPIRoboticsProjects / GRIP

Program for rapidly developing computer vision applications
http://wpiroboticsprojects.github.io/GRIP
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GRIP 1.5.1 Exception_Access_Violation #794

Open Teach4AZ opened 7 years ago

Teach4AZ commented 7 years ago

Good afternoon. We tried implementing Grip 1.5.1 on a windows 10 X64 laptop. The project went fine until we tried to add the blob filter. The Grip program just closes. I can't pinpoint if it is just time or an action on the filter that causes it. When going to %appdata% then going back a folder to local\GRIP\app there is a hs_err_pid file that says the jre encountered a fatal error. The error is Exception_Access_Violation. Anyone have ideas on why this happened and how to fix it? I read on Oracles site that it could be UAC so we turned that off and it still happens.

Axis M1013 Ip Camera HSV Thresh CV Erode Mask Find Blobs

JDK and JRE 1.8.0_121 WPILIB Software Update for Drive Station is 2016 though Havent updated to 2017 yet.

Sam Alexander FRC Team 1290

SamCarlberg commented 7 years ago

Can you share the hs_err and save files?

Teach4AZ commented 7 years ago

I can tomorrow.

Sam

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-------- Original Message -------- From: Sam Carlberg notifications@github.com Sent: Friday, January 20, 2017 03:47 PM To: WPIRoboticsProjects/GRIP GRIP@noreply.github.com Subject: Re: [WPIRoboticsProjects/GRIP] GRIP 1.5.1 Exception_Access_Violation (#794) CC: "Alexander, Lsam" alexander.lsam@cusd80.com,Author author@noreply.github.com

Can you share the hs_err file?

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Teach4AZ commented 7 years ago

Here are the files:

files.zip

SamCarlberg commented 7 years ago

Looks like GRIP can't decode the image being sent by the IP camera. Does the camera seem to work if you open the stream in a web browser?

Teach4AZ commented 7 years ago

Yes. The output image of the mask filter shows in grip. Linked that filter output to blobs.

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-------- Original Message -------- From: Sam Carlberg notifications@github.com Sent: Saturday, January 21, 2017 03:10 PM To: WPIRoboticsProjects/GRIP GRIP@noreply.github.com Subject: Re: [WPIRoboticsProjects/GRIP] GRIP 1.5.1 Exception_Access_Violation (#794) CC: "Alexander, Lsam" alexander.lsam@cusd80.com,Author author@noreply.github.com

Looks like GRIP can't decode the image being sent by the IP camera. Does the camera seem to work if you open the stream in a web browser?

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Teach4AZ commented 7 years ago

We were able to even see the live blobs output with another project and it was working for a while until Grip just closes. The IP camera is hooked up to the D-link DAP1522 as well as the Roborio. The laptop is hooking up through the wifi access point. We are using axis-camera.local as the ip address of the source. If we are watching the live feed through Grip and then it just closes is there a way we can check to see if there was a hiccup with the feed? Is there anything else to check if Grip closes as it is actually working?

SamCarlberg commented 7 years ago

The crash is always happening on the thread responsible for getting images from the IP camera, and the error seems to be a problem with reading or writing to a chunk of native memory.

Can you run GRIP as an administrator and see if this still happens?

Teach4AZ commented 7 years ago

I ran Grip as an administrator and it still happened. Also, the UAC is turned off through the registry. I tried that first when I read an Oracle thread about the Exception_Access_Violation. Are you saying native memory as in ram? I could run memchecker to test it.