Experimental Physics and
Industrial Control System

Hi Peter and Mark, 

I tried it with and without the timestamp bit, and I get the same behavior. Essentially, it takes about 10-15 s for the image to be updated in ImageJ. I'm attaching a screenshot of my URLDriver.adl screen as well as the image that I see on the web page and the image in ImageJ; you can see the two are not the same. My Acquire period is set to 1. The webcam should be outputting at 12fps in the web page. 

Thanks!

On Tue, Aug 10, 2021 at 1:40 AM Heesterman, Peter J <Peter.Heesterman at ukaea.uk> wrote:

Hi Katie, Mark,

 

Could you try removing the ?timestamp=1628535368535 bit from the URL (leaving only http://10.0.1.50/mjpg/video.mjpg )?

 

The timestamp indicates a specific image frame, having a specific time stamp.

 

Cheers,

 

Peter.

 

 

From: Katie Matusik <kmatusik at sigray.com>
Sent: 09 August 2021 20:01
To: Heesterman, Peter J <Peter.Heesterman at ukaea.uk>
Cc: Mark Rivers <rivers at cars.uchicago.edu>; EPICS Tech Talk <tech-talk at aps.anl.gov>
Subject: Re: ADURL with Axis PTZ network camera

 

Hi Mark and Peter,

Copying the image link and entering that into the URL setup screen does work; the new link looks like http://10.0.1.50/mjpg/video.mjpg?timestamp=1628535368535. When I pan the camera around, the image through the IOC does update, but very slowly relative to the camera updating in the web browser. Should I be expecting latency on the order of tens of seconds? 

 

Thanks!

Katie

 

On Mon, Aug 9, 2021 at 10:41 AM Heesterman, Peter J <Peter.Heesterman at ukaea.uk> wrote:

Hi Katie,

 

I’m not familiar with that particular camera model.

I’ve been trying to locate one from http://www.insecam.org/en/bytype/Axis/, but the site only selects by manufacturer, and not by model type.

 

In the web browser view (I’m using Firefox for this), can you right click on the image and select ‘copy image link”.

Does this give a different URL?

 

If so, can you try that instead?

 

Many camera types emit a compound image which cannot be parsed by the ADURL module.

 

Cheers,

 

Peter.

 

 

 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of Katie Matusik via Tech-talk
Sent: 09 August 2021 17:31
To: Mark Rivers <rivers at cars.uchicago.edu>
Cc: tech-talk <tech-talk at aps.anl.gov>
Subject: Re: ADURL with Axis PTZ network camera

 

Hi Mark,

I'm using ADSupport R6-2-1 and I get the same error if %size=1 is removed from the url.

 

Thanks!

Katie

 

On Fri, Aug 6, 2021 at 8:16 PM Mark Rivers <rivers at cars.uchicago.edu> wrote:

Hi Katie,

What version of ADSupport are you using?

What happens if you remove the &size=1 from the end of the URL?

Mark


Sent from my iPhone

On Aug 6, 2021, at 5:27 PM, Katie Matusik via Tech-talk <tech-talk at aps.anl.gov> wrote:


Hi all,
I'm running epics base 3.15.9 with areaDetector R3-11 and using ADURL to try to grab images from an AXIS M5065 PTZ Network Camera. The URL of the image feed is http://10.0.1.50/view/view.shtml?id=68&imagepath=%2Fmjpg%2Fvideo.mjpg&size=1 and I can see the live feed in the browser but I get an error message in the ADURL IOC that states "error reading URL="" No decode delegate for this image format (/tmp/gm48Qkon) reported by ../constitute.c:1534 (GmReadImage)". Any help is appreciated, thank you!

-Katie

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Katie Matusik

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Sigray, Inc.

5750 Imhoff Drive, Suite I

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This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error, please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee, you should not disseminate, distribute or copy this email. Please notify the sender immediately by email if you have received this email by mistake and delete this email from your system. If you are not the intended recipient, you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited

 

--

Katie Matusik

Systems Engineer

Sigray, Inc.

5750 Imhoff Drive, Suite I

Concord, CA 94520 USA

Office: 1 (925) 326 - 7926

 

 

This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error, please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee, you should not disseminate, distribute or copy this email. Please notify the sender immediately by email if you have received this email by mistake and delete this email from your system. If you are not the intended recipient, you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited

--

Katie Matusik

Systems Engineer

Sigray, Inc.

5750 Imhoff Drive, Suite I

Concord, CA 94520 USA

Office: 1 (925) 326 - 7926