image viewer that refreshes?
I have a .jpg image that keeps changing (from a webcam). Is there an
image viewer in debian's packages that will display the image and
automatically refresh the image when it has changed? I've already
tried gqview, xli and display, and qiv. ('display -update 1' doesn't
update as advertised). Thanks,
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Benjamin
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Re: image viewer that refreshes?
Benjamin Rutt sez:
} I have a .jpg image that keeps changing (from a webcam). Is there an
} image viewer in debian's packages that will display the image and
} automatically refresh the image when it has changed? I've already
} tried gqview, xli and display, and qiv. ('display -update 1' doesn't
} update as advertised).
Let us assume that your image is the free JenniCam, which updates every 20
minutes, and that you have a cron job or some other process doing the
downloading:
#!/bin/sh
WATCHIMG=/tmp/jennicam.jpg
display -immutable $WATCHIMG
while true
do
sleep 1200
display -remote $WATCHIMG
done
} Thanks,
} Benjamin
--Greg
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Re: image viewer that refreshes?
Gregory Seidman [EMAIL PROTECTED] writes: Let us assume that your image is the free JenniCam, which updates every 20 minutes, and that you have a cron job or some other process doing the downloading: #!/bin/sh WATCHIMG=/tmp/jennicam.jpg display -immutable $WATCHIMG while true do sleep 1200 display -remote $WATCHIMG done FYI, I actually found that I needed to issue the initial display *without* the -immutable flag (otherwise, the -remote command would make the original display process terminate). After that, it worked great though, thanks for the tip. -- Benjamin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: image viewer that refreshes?
On Tue, 2003-03-11 at 09:24, Gregory Seidman wrote:
Benjamin Rutt sez:
} I have a .jpg image that keeps changing (from a webcam). Is there an
} image viewer in debian's packages that will display the image and
} automatically refresh the image when it has changed? I've already
} tried gqview, xli and display, and qiv. ('display -update 1' doesn't
} update as advertised).
Let us assume that your image is the free JenniCam, which updates every 20
minutes, and that you have a cron job or some other process doing the
downloading:
#!/bin/sh
WATCHIMG=/tmp/jennicam.jpg
display -immutable $WATCHIMG
while true
do
sleep 1200
display -remote $WATCHIMG
done
What, in this case, is a remote operation?
--
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| Ron Johnson, Jr.mailto:[EMAIL PROTECTED] |
| Jefferson, LA USA http://members.cox.net/ron.l.johnson |
| |
| Spit in one hand, and wish for peace in the other.|
| Guess which is more effective... |
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Re: image viewer that refreshes?
-- Ron Johnson [EMAIL PROTECTED] wrote (on Tuesday, 11 March 2003, 12:09 PM -0600): On Tue, 2003-03-11 at 09:24, Gregory Seidman wrote: Benjamin Rutt sez: } I have a .jpg image that keeps changing (from a webcam). Is there an } image viewer in debian's packages that will display the image and } automatically refresh the image when it has changed? Let us assume that your image is the free JenniCam, which updates every 20 minutes, and that you have a cron job or some other process doing the downloading: #!/bin/sh WATCHIMG=/tmp/jennicam.jpg display -immutable $WATCHIMG while true do sleep 1200 display -remote $WATCHIMG done What, in this case, is a remote operation? I haven't used this, but I have used a number of other applications that work like this. Basically, giving 'display' the option '-immutable' and throwing it into the background makes display sorta kinda act like a server of sorts -- commands can be given to it. Which is where '-remote' comes in -- it's saying to 'display' to look for an already running instance of 'display' and then to change the image being used. Mozilla has similar operations that can be used to reload/load a new page in an existing window, or to use an already running process to open a new window/tab. (For the OP - had you considered loading the image in Mozilla/Galeon/Opera/Phoenix... and setting an autoreload on it, either via the tab/window preferences or using mozilla-remote?) -- Matthew Weier O'Phinney [EMAIL PROTECTED] http://matthew.weierophinney.net -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: image viewer that refreshes?
Matthew Weier O'Phinney [EMAIL PROTECTED] writes: I haven't used this, but I have used a number of other applications that work like this. Basically, giving 'display' the option '-immutable' and throwing it into the background makes display sorta kinda act like a server of sorts -- commands can be given to it. Which is where '-remote' comes in -- it's saying to 'display' to look for an already running instance of 'display' and then to change the image being used. Looks correct, although in my case, using -immutable for the first invocation of display causes later -remote invocations to close the original window. So, for me, the above paragraph is true, minus the '-immutable' option. (For the OP - had you considered loading the image in Mozilla/Galeon/Opera/Phoenix... and setting an autoreload on it, either via the tab/window preferences or using mozilla-remote?) Yes, that wouldn't be bad...unfortunately I can't keep a browser running for very long usually. My X server is often a thin-client xterm, and for some reason browsers keep dying with the following types of errors: X Error of failed request: BadAlloc (insufficient resources for operation) Major opcode of failed request: 53 (X_CreatePixmap) Serial number of failed request: 14366 Current serial number in output stream: 14517 X Error of failed request: BadGC (invalid GC parameter) Major opcode of failed request: 57 (X_CopyGC) Resource id in failed request: 0x2c0074d Serial number of failed request: 14448 Current serial number in output stream: 14521 Maybe it's a colormap issue, but I'm clueless. -- Benjamin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: image viewer that refreshes?
On Wednesday, March 12, 2003 01:48, Benjamin Rutt wrote: I have a .jpg image that keeps changing (from a webcam). Is there an image viewer in debian's packages that will display the image and automatically refresh the image when it has changed? I think both gThumb and kuickshow use the file monitoring features of FAM, so either should automatically refresh when the file changes. Hope this helps -- Michael Wardle Adacel Technologies -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
