For the others who have been following the discussion on the list.
From: Shane Sanford [mailto:shane.sanf...@concurrent.us] Sent: Friday, December 14, 2012 10:08 AM To: 'Biel Bestué de Luna' Subject: RE: [Elphel-support] change camera parameters through Telnet Yeah, I was aware mimg sucks up memory in a heartbeat but was just a quick and dirty test. Be sure to check out readparameter_demo.php as I found it very helpful as well. Glad it helped. Good luck on your project. Shane From: Biel Bestué de Luna [mailto:7318...@gmail.com] Sent: Friday, December 14, 2012 9:51 AM To: Shane Sanford Subject: Re: [Elphel-support] change camera parameters through Telnet hey shane thanks for your time, I've tried the three scripts, the last one seems to fail, I get the following message in the browser: Parse error: syntax error, unexpected '*' in /mnt/flash/html/setparameters_demo.php on line 2 It seems the parser can't parse the initial comments I've solved by adding the line 1 from another php file: " /*!************************************************************************* **** " and now it works, it changes the parms with the three frames delay as stated in the resulting text it works great! it's way more quicker! even with wget and downloading something. maybe if wget downloaded a blank file, simplifying the script even more, it would be even more quicker, isn't it? -------------------------------- one thing I found out using "mimg" eated all my memory in seconds, it stopped my computer, even lowering the compression to a minimum, it seems like "mimg" doesn't clear the memory after it discarded the last frame a frame, so his memory footprint keeps growing. I think you better try this with my GStreamer line I posted above, have you tried it? the only delay is just a frame of delay which is imperceptible. From: Shane Sanford [mailto:shane.sanf...@concurrent.us] Sent: Friday, December 14, 2012 7:38 AM To: 'Biel Bestué de Luna' Subject: RE: [Elphel-support] change camera parameters through Telnet Biel, Here is an experiment it may be worth trying (preferably with your laptop with a wired connection to your router to eliminate possible wireless issues) . Make sure you have enough illumination your exposure is not causing lag (so say exposure of 50ms or lower would be perfect for this). Open the below command in a browser and note the exposure and adjust illumination if need be. Then close the browser. http://192.168.0.33/webcam_adv.php Open up a browser with http://192.168.0.33:8081/mimg This will continuously acquire images at the max rate the camera can send using imgsrv. In a second browser send the following command and see how long it takes before you see the difference. http://192.168.0.33/setparameters_demo.php?EXPOS=50000 Obviously your camera IP will be different than mine and I just choose a exposure setting that would basically saturate the image to make it easier to see. My auto exposure is turned on so it will readjust itself back down to a happy level and I can repeat the test by hitting f5 to resend the command. For me I am seeing maybe a ½ second delay at most before the setting is applied. I found the following the setparameters_demo.php & readparameter_demo.php much preferred over trying to use parsedit.php for having my program interface with the camera. /usr/html/setparameters_demo.php /usr/html/readparameter_demo.php Hope this is helpful in some way. Best of luck! BTW, I am just another user and have no association with Elphel Shane
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