WebVision · Usage - Edit Site Window

2.2 Usage - Edit Site Window

This window opens when you create a new site in the Site List Window, or edit an existing one. Changes are not commited until you press the Ok button. When you do commit the changes, they will be reflected immediatedly by the associated cam window if it is open.

2.21 Basic options

Name is the name you will give to the site.
Comment is where you can enter a comment about the site. For instance, if the site is unfamiliar you could enter a comment into this box so that you quickly remember the contents of the site.
Homepage URL reference homepage url.
Image URL is the actual url of the web cam. Important!
Auto update determines how often WebVision will request a new image from the server. Selecting "Periodic" lets you configure the number of seconds between each request, "Continous" means it will send a new request as soon as the previous one is done. Disabled should be used for streaming webcams, there's no need to send new requests there, the data is sent continously automatically.
Scaling -if this is enabled, you can set it to a a freely chosen scale factor, or you can scale it to fill your entire screen in one dimension. The popup allows you to select from a number of presets, selecting 200 for example doubles the image. Note that image scaling automatically falls back to the maximum scalefactor if the chosen factor makes the camwindow bigger than the screen.
Show on start checkmark makes the camera open when you start WebVision.
Don't display images is useful if you just want to save the images for later viewing.
Adult content checkmark is there to allow other users to filter out such sites when they use the automatic camsite update service.

2.22 Advanced HTTP

Referer HTTP header can be used to convince some sites that you are viewing the webcam as part of a HTML page on their site, instead of in WebVision. When set to normal, it just sends the URL of the image itself.
User headers is for really advanced users who want to send custom headers to the site, possibly to gain access. Each header line should be seperated by \\r\\n.
Username/Password are sent in the Authorization HTTP header if they are filled out.

2.23 Autosave

Enable autosave allows you to save all the images with a unique name, formatted any way you like it.

For novice users, simple click the "Enable" checkmark and set the directory to where you want the images saved. The directory doesn't have to exist, WebVision will create it for you.

Directory - advanced users will probably want to customize the format of the directory and the filename.

Some examples are provided here to give you the general idea first. Imagine that a webcam is configured with name "ExampleCam", Image URL "http://www.webcam.com/path/pic.jpg", directory "RAM:" and filename format "&n-%H.%M.%S.&x" (the default).

This will result in filenames like the following:

  RAM:ExampleCam-10.31.42.jpg
  RAM:ExampleCam-10.32.35.jpg
  RAM:ExampleCam-10.35.10.jpg
  etc.

Another example, same Image URL, but directory set to "CamImages:%Y.%m.%d" and filename set to "%H.%M.%S-&F.&x". This gives you these names:

  CamImages:1998.12.13/10.31.42-pic.jpg
  CamImages:1998.12.13/10.32.35-pic.jpg
  CamImages:1998.12.13/10.35.10-pic.jpg
  etc.

Here is the complete list of time and date codes supported. Note that some of these doesn't make sense for WebVision because they include characters illegal in filenames.

  %a - abbreviated weekday name
  %A - weekday name
  %b - abbreviated month name
  %B - month name
  %c - same as "%a %b %d %H:%M:%S %Y"
  %C - same as "%a %b %e %T %Z %Y"
  %d - day number with leading 0s
  %D - same as "%m/%d/%y"
  %e - day number with leading spaces
  %h - abbreviated month name
  %H - hour using 24-hour style with leading 0s
  %I - hour using 12-hour style with leading 0s
  %j - julian date
  %m - month number with leading 0s
  %M - the number of minutes with leading 0s
  %n - insert a linefeed
  %p - AM or PM strings
  %q - hour using 24-hour style
  %Q - hour using 12-hour style
  %r - same as "%I:%M:%S %p"
  %R - same as "%H:%M"
  %S - number of seconds with leadings 0s
  %t - insert a tab character
  %T - same as "%H:%M:%S"
  %U - week number, taking Sunday as first day of week
  %w - weekday number
  %W - week number, taking Monday as first day of week
  %x - same as "%m/%d/%y"
  %X - same as "%H:%M:%S"
  %y - year using two digits with leading 0s
  %Y - year using four digits with leading 0s

The following formatting codes are the ones provided internally by WebVision. They all relate to the attributes of the camsite. To explain how the URL is split up, example parsing for the "http://www.webcam.com/path/pic.jpg" URL is displayed in parentheses.

  &n - name
  &c - comment
  &h - complete homepage url
  &i - complete image url
  &s - server ("www.webcam.com")
  &p - port ("80")
  &a - filename with complete path ("/path/pic.jpg")
  &f - filename only with extension ("pic.jpg")
  &F - filename only without extension ("pic")
  &x - filename extension ("jpg")
  &e - enumeration (see below)

The last one is a special formatting code. It allows you to make filenames like "pic.0000", "pic.0001", etc. When saving the first picture, WebVision will scan the save directory for the highest numbered file and continue enumeration from there. It may only appear once, and only in the filename string. All other formatting codes can be used for both directory, filename and comment strings.