Ubuntu :: Take Delayed Picture From Webcam Via CLI Every 60 Seconds?
Nov 4, 2010
I have a script running at the moment via cron which takes a picture every minute from my webcam. gst-launch-0.10 v4l2src num-buffers=1 ! jpegenc quality=95 ! filesink location=/home/user/$picture.jpg However, the camera is only on for one second and takes the picture which leads to very dark images as the light sensor hasn't had a chance to work yet. However, if I load up Cheese, it brightens after about 10 seconds of the camera being on. Is there anyway of adding in a delay to the pipeline above so the camera stays on for 10 seconds before actually saving the file to a jpg?
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Oct 8, 2010
Cheese Webcam Booth used to work fine but now it just closes after I open it, Facebook wont load my webcam (but other websites can, and I wanna take a picture. I'm using a Logitech Webcam. I don't know what kind because it doesn't say anywhere on the stupid thing, but it has a spinny thing (to adjust the focus I think) that says "Right Sound" on it, and it also has a microphone.
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Jan 4, 2010
Recently I have bought an asus k40in laptop. Actually, everything work fine, but my picture in both Cheese and Skype is upside down.
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Nov 17, 2010
I am trying to use streamer to set up a cron job to take a picture with my webcam once/minute. The image that it is capturing is too dark - does anyone know a way to lighten it? I am capturing the image as JPEG.
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Mar 5, 2011
I've tried this with 2 different logitech webcams, and the same thing happens with both.
It works fine or a minute or two, but then the picture freezes.
Using Skype, Cheese or flash based ustream.
THey are both HD Logitech webcams and give me a great image until they freeze.
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Mar 1, 2010
I am looking for a free application for webcam that have a very good ,easy and flexible command line options. because I want to shutting down my X in a machine and use my web cam as a motion detector to detect a motion or some thing else and take picture and save them in an appropriate place or any other action that possible but in command line configuration or file configuration and does not need any graphical user interface.
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Dec 21, 2010
I have buy new webcam Trust WB-1400T, connected to my Fedora and got very dark picture with probably bad whitebalance, while on windows, result is much better with the same device.
I tried:
1) HW check, verified - running OK
2) checked, if HW is supported. it is by driver gspca_pac207 with 5 stars
3) dmesg:
4) lsmod :
5) modinfo:
Here is an example of Win / Lin difference :
[url]
[url]
I also tried to adjust camera using v4l
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Dec 21, 2010
I bought new webcam Trust WB-1400T, connected to my Fedora and got very dark picture with probably bad whitebalance, while on windows, result is much better with the same device.
I tried:
1) HW check, verified - running OK
2) checked, if HW is supported. it is by driver gspca_pac207 with 5 stars
3) dmesg:
4) lsmod :
5) modinfo:
It should be 0x093a Ox2468 , but this isn't rootcause.. or ? it's listed in module aliases..
I also tried to adjust camera using v4l
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Jan 24, 2010
i had just edited a picture in digikam that was going to be my new desktop wallpaper.when i went into system/preferences/appearance to make the new change it would not show the new picture that i had just edited as a choice to change my new wallpaper to. then i tried closing the appearance box and it would not close.then i shut down and restarted and when i bring up the appearance box it does not let me click on anything within.also can't close it.seems like other applications are working normally.
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Jul 27, 2011
I'm trying to use Pinta Image Editor but I cannot find an option to preview the image, in a viewable size, before I work on it.
what to do in this situation? Prefferably it would be nice to view all the pictures as thumbnails.
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Jun 17, 2011
When I hover over an open programme which is on the task bar I get a pop up, but instead of a picture of the actually programme I get a grey box like this
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Oct 16, 2010
way to hibernate at a specific time or after a some minutes (like 40 minutes to an hour, guess the exact time doesnt matter anyway). normally i shutdown my comp at night with
Code:
sudo shutdown - P HH:MM
which works just fine, but sometimes i have like 4 workspaces of stuff open that i'm working on so i'd rather just hibernate. shutdown -H does this halt thing that is really not my cup of tea so from the aformentioned googling i found out about at and sleep and crontab etc. but at and sleep cant recieve my sudo password beforehand so its useless and crontab is for repetitive scheduling, which i'd like to avoid cause i would hate to be working and suddenly have my forgotten crontab script hibernate me.
so is there any way to do a delayed hibernation? or at least some way to provide the sudo password to an at or sleep prefixed command, beforehand?
i'm only interested in doing it straight up through the terminal, not through other 3rd party software cause i tried a few of those before i found out about shutdown and they didnt work very well.
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Nov 2, 2010
Something that has been bugging me. I'm not sure about where it should be so I put it here.
When I loaded up a flash game, the music/sound would be delayed. It's nothing with the performance of my PC because it's still fast.
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May 29, 2010
My keyboard was working fine then all of a sudden it started acting up. Now when I boot into linux the keyboard works fine till I start the Xsever. At first I thought that the keyboard stopped working so I restarted it and still had the same problem. I ended up restarting it 8 times then I finally started to hit the keyboard now when I was done hitting it I kinda kept my hand on it and noticed it still types but I have to hold it for a long period of time for it to start typing. I have to hold the button for like 1-2 Sec for it to type one letter. Then I checked the keyboard setting and they were fine.
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Jan 29, 2011
Is there a command i can enter into the terminal or over an SSH session to make an Ubuntu system reboot a few hours later? Sometimes I want to reboot my server and it should take place in the middle of the night when I'm asleep.
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Jul 1, 2011
is there a way to configure shutdown on critically low battery to give me a bit of time before actually shutting down?I've set Gnome to shutdown on low battery. Problem is, I don't get any notification about battery running low, and as soon as battery level reaches the critical threshold, the system starts shutdown without me having any possibility to quickly complete some tasks. Of course, I'd increase battery level thresholds accordingly.
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May 21, 2011
I have openSUSE 11.3 on my Lenovo Thinkpad X61. It has been running fine for many months, but yesterdaychanged. For example, between the two previous words I had actually typed "something" ("yesterday something changed") but it was lost. I type at normal speed but the machine cannot keep up. Hopelessly annoying. This happens in every application I have checked. The only unusual thing I did yesterday was to load a bunch of photos off a relative's digital camera. I'm concerned I may have picked up spyware.
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Jan 22, 2010
When I reboot, USB keyboard acts just fine for GRUB. Once SUSE begins to boot, I lose the keyboard (numlock light goes off too). Cannot press ESC to watch the boot sequence. Then, at login, there is no mouse or keyboard for about 60 seconds. Then suddenly, they both become active. Why did this start happening?
It has been about a week since my last reboot, so there's been a few config changes and patches, so it's going to be hard to narrow down a culprit. Thought USB configs in /etc/fstab was the problem, but still happening after rolling back changes to a known good config. Re-ran SaX2. Mouse and keyboard look good in the config file. Also, have otherwise healthy USB behavior with thumb drives and in VirtualBox machines. It just acts goofy at boot time.
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Feb 18, 2010
I'm having a problem with TCP connections taking a long time to establish, often timing out. The strange thing is it seems to only happen on some source workstations and not others in our LAN but not from home or other internet connections.I can see the SYN packet leave the source workstation, enter the firewall LAN interface, leave the firewall WAN interface and arrive at the destination server's interface. Then the SYN ACK packet doesn't get sent for 2 to 300 seconds. Once I see the SYN ACK sent from the server, the connection is ESTABLISHED.
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Jul 5, 2011
i have sony viao vgn-fz11 Can someone please help ,im new user to ubuntu been trying to get webcam working properly at the moment its upside down and does not work in skype at all just get black screen does this look correct? do i have the right driver?i will try and give as much information as i can.
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Aug 3, 2010
I have a problem making work a webcam. At the begining, after the instalation of 10.04 in a new laptop, the webcam did not work but with a lsusb I see that the webcam was Webcam 5986:0241 acer. I was not able to config neither use the webcam with any application. After lots of test and forums reading I could not do my webcam to work, and now when I do a lsusb my webcam does not appear.
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Sep 14, 2011
I have been running Senmail on SuSE 11.1 for the last few years with no problems.Since installing SuSE 11.3 a few months ago I have been having problems getting Sendmail to send to some (only a few) servers.If I disable the firewall # SuSEFirewall2 stop.I can send successfully using # sendmail -v -q, or # sendmail -v -qIxxxxx.When I re-enable the firewall I will start to get the timeouts/temporarily unavailable messages again (but as mentioned above, only for some servers) even though I can successfully telnet these servers when the firewall is on. When I disable the firewall the delayed messages can again be sent.Has anybody any ideas what I need to change (presumably in the Firewall) to get things working correctly? 'SMTP with sendmail' is already selected under 'Services to Allow' under YaST Firewall->Allowed Services..
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Dec 6, 2010
in middle of my script when i use tar command to tar some 1000 images each of size 5MB,and
all the images are passed as argument
example tar -cvf <file.tar> <all images as argument>
but when i extracted the <file.tar> it does not contains all the images and it displayed error message tar:Error exit delayed from previous errors
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Dec 6, 2010
in middle of my script when i use tar command to tar some 1000 images each of size 5MB, and all the images are passed as argument example tar -cvf <file.tar> <all images as argument> but when i extracted the <file.tar> it does not contains all the images and it displayed error message tar:Error exit delayed from previous erros
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Jun 3, 2009
I want to use my laptop's built in webcam as remote webcam and I don't want to use FTP and post images to a www and use php script or sth, I want to make it accessed remotely as a fast stream and if there is a way I would like to use it with Windows XP - Microsfot Windows Messenger.
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Oct 23, 2015
I have a Philips saa7134 tv tuner i have configured it because of not having eeprom recognition. Now i am facing xawtv a delayed sound "pcm buffer overrun..." is there any way yo fix it. I use KDE, and aplay when playing sound in TVTime but still the same thing happens delayed sound. and is there any option in those players that i can set the channel frequency manually?
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Oct 23, 2010
I am trying to upload an IOS in the cisco NAC Appliance. The IOS version has to be updated as 4.8. I am getting the below error when i tried. File is not in gzip format Child return status 1 Error exit delayed from previous errors. I am using the below command to unzip the IOS file. tar xzvf ccca_upgrade-4.8.0-from-4.6.x.tar.gz.
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Aug 14, 2010
how to find out what driver my webcam is using and where its located the webcam it self works but goes from normal to dark after a minute of use and would like to fix it
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Jun 24, 2011
I am using RED HAT linux AS-4. I have written a script which execute on job. This script takes the cold backup of oracle database files. The script is
Script:
SQL> !tar cvf /4hd/backup/temp_backup/full_offline_backup_`date +%d-%m-%Y+%H-%M-%S`.ora /home/oracle/oradata/orcl /2hd/oracle /3hd/oracle /backup_ide/oracle --gzip --exclude-from=/home/oracle/backup_scripts/exdtime
[code]....
Error: tar: Error exit delayed from previous errors
Due to this error the backup cannot be restore to standby server.
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Mar 18, 2010
I have Karmic on my main PC and the mouse works fine.I have set up Remote Desktop to use a second machine, also with Karmic. Everything works but the mouse is slow to point. For instance if I select a line of text the text is highlighted before the mouse pointer reaches the end. There seems to be a delayed reaction. I have 1Gbit ram on the second m/c.
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