[mythtv-users] ZoneMinder plug in incompatible with network triggers

Paul Harrison mythtv at sky.com
Tue Feb 26 11:04:18 UTC 2013


On 26 February 2013 03:13, David Smoot <davidsmoot at gmail.com> wrote:
> So this weekend I installed Zoneminder on my Mythbuntu box.  I wanted to use
> ZoneMinder to do two things:  Integrate with MythTv to allow camera views
> and management from the TV interface and to use the "zmtrigger.pl" package
> to allow my home automation system to trigger recordings from my security
> cameras via a network socket interface.
>
> Unfortunately, it appears these two goals are mutually exclusive.  The
> ZoneMinder plug in requires ZoneMinder to be compiled with shared memory
> enabled.  But an unfortunate bug in zmtrigger makes it crash when it is used
> with shared memory.  See
> http://www.zoneminder.com/forums/viewtopic.php?f=29&t=19619&hilit=zmtrigger.
>
> On the positive side I can verify that the default packages for ZoneMinder
> are compiled with the Myth compatible "shared memory" option and that the
> mythzoneminder package works with ZoneMinder 1.25 (the latest as of this
> writing).  So if you do not want the network trigger capability of
> zmtrigger.pl, then the latest packages appear to work fine.
>
> I don't really want most of the fancier features of ZoneMinder like motion
> detection, I really just want a way I can trigger (and ideally schedule)
> footage from my IP cameras to be recorded via a network interface.
>
> Are there any alternative packages that you are aware of that would
> accomplish my goal?
> Are there any plans to update the ZoneMinder Plug in to be compatible with
> mapped memory?
> Will zoneminder recordings appear in the MythTV interface?
>
> How difficult would it be to write a plug in to Myth TV that could stream IP
> cameras to disk like any other network source?  Ideally I would want
> something like what already works with a network attached HD Home Run but
> streams from a camera instead.  I would want to schedule repeating
> recordings at certain times like "record the front door camera from 3:20pm
> to 3:30pm every week day when my son comes him from school" as well as
> trigger a spontaneous recording whenever the security system is disarmed or
> set off.
>
> Any suggestions welcome, I am a moderately skilled programmer but with no
> open source experience.  If the task is not too daunting I might try it
> myself.
>
> David Smoot
> davidsmoot at gmail.com
>
>

What version of Myth are you using? MythZoneMinder has supported both
shared memory and mmap since version 0.25.
http://www.mythtv.org/wiki/Release_Notes_-_0.25#MythZoneMinder

Paul H.


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