Methods made available to control.pl via ZoneMinder::Control
Notes:
Which methods are invoked depends on which types of movement are selected in
the camera control type. For example: if the 'Can Move Continuous' option is
checked, then methods including 'Con' in their names are invoked. Likewise if
the 'Can Move Relative" option is checked, then methods including 'Rel' in
their names are invoked.
At present, these types of movement are prioritized and exclusive. This applies
to all types of movement, not just PTZ, but focus, iris, etc. as well. The options
are tested in the following order:
1. Continuous
2. Relative
3. Absolute
These types are exclusive meaning that the first one that matches is the one
ZoneMinder will use to control with. It would be nice to allow the user to
select the type used given that some cameras support all three types of
movement.
new
This method instantiates a new control object based upon this control module
and sets the 'id' attribute to the value passed in.
open
This method opens an HTTP connection to the camera. It handles authentication,
etc. Upon success it sets the 'state' attribute to 'open.'
close
This method effectively closes the HTTP connection to the camera. It sets the
'state' attribute to 'close.'
printMsg
This method appears to be used for debugging.
moveCon<direction>
This set of methods invoke continuous movement in the direction indicated by
the <direction> portion of their name. They accept no arguments and move the
camera at a speed of 1 for 0ms. The speed index of 1 is the lowest of the
accepted range of 1-8.
NOTE:
This is not true continuous movmement as currently implemented.
focusCon<range>
This set of methods invoke continuous focus in the range direction indicated
by the <range> portion of their name. They accept no arguments.
NOTE:
This is not true continuous movmement as currently implemented.
moveRel<direction>
This set of methods invoke relatvie movement in the direction indicated by
the <direction> portion of their name. They accept no arguments and move the
camera at a speed of 4 for 500ms. The speed index of 4 is half-way between
the accepted range of 1-8.
focusRel<range>
This set of methods invoke realtive focus in the range direction indicated by
the <range> portion of their name. They accept no arguments.
NOTE:
This only just does work. The Dahua API specifies "multiples" as the input.
We pass in a 1 for that as it does not seem to matter what number (0-8) is
provided, the camera focus behaves the same.
irisRel<Large/Small>
This set of methods invoke realtive iris size in the direction indicated by
the <Large/Small> portion of their name. They accept no arguments.
NOTE:
This only just does work. The Dahua API specifies "multiples" as the input.
We pass in a 1 for that as it does not seem to matter what number (0-8) is
provided, the camera iris behaves the same.
moveStop
This method attempts to stop the camera. The problem is that if continuous
motion is occurring in multiple directions, this will only stop the motion
in the 'Up' direction. Dahua does not support an "all-stop" command.
presetHome
This method "homes" the camera to a preset position. It accepts no arguments.
When either continuous or relative movement is enabled, pressing the center
button on the movement controls invokes this method.
NOTE:
The Dahua protocol does not appear to support a preset Home feature. We could
allow the user to assign a preset slot as the "home" slot. Dahua does appear
to support naming presets which may lend itself to this sort of thing. At
this point, we'll just send the camera back to center and zoom wide. (0°,0°,0)
reset
This method will reset the PTZ controls to their "default." It is not clear
what that is.
reboot
This method performs a reboot of the camera. This will take the camera offline
for the time it takes to reboot.
perl v5.40.1 2025-02-21 ZoneMinder::Control::Dahua(3pm)
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