[mythtv-users] tmdb grabber switch to v3

Raymond Wagner raymond at wagnerrp.com
Sun Dec 1 00:40:29 UTC 2013


On 11/30/13 18:01, Paul Harrison wrote:
> On 30/11/13 23:33, Raymond Wagner wrote:
>> On Nov 30, 2013, at 15:37, Paul Harrison <mythtv at sky.com> wrote:
>>
>>> On 30/11/13 18:37, Raymond Wagner wrote:
>>>> On 11/30/13 11:15, IsmoT wrote:
>>>>> my zoneminder installation
>>>> Updating MythTV should not require updating Zoneminder, and as I
>>>> understand it, Mythzoneminder will only run on one machine, the one
>>>> actually running Zoneminder, and that it is not a clustered application
>>>> like MythTV.
>>> Raymond I think you misunderstand how MythZoneMinder works (that
>>> probably explains your previous hostility to it). It works like a
>>> client/server. MythZoneMinder the FE plugin can run on any system, it
>>> doesn't matter if it is local or remote to the system running
>>> ZoneMinder. The FE's running the plugin don't even have to be
>>> connected to the same BE. You can even access a ZoneMinder system
>>> across the internet if you wished.
>>>
>>> mythzmserver is a tiny helper daemon that runs on the same system as
>>> ZoneMinder that acts as a server accepting connections from the FE's
>>> and returning the requested data. It can be run on a system
>>> independent of Myth and can be compiled standalone so doesn't require
>>> any of the MythTV libs or dependencies so avoids the bloat of a full
>>> Myth install.
>> I had thought MythTV required local, shared memory access to
>> Zoneminder.  Is that what mythzmserver is for?
>>
> 
> Yeah, mythzmserver runs on the same system as ZoneMinder and among other
> things reads the live camera images from ZMs shared memory or mmap files
> and then passes them on to the FE plugin using its own protocol for the
> communication.
> 
> It's done this way because many users who have a ZoneMinder setup use a
> separate server that doesn't have a myth BE running on it hence my
> dismay at you saying the plugin should be removed and the functionality
> added to the BE. I would have though replicating the motion detection
> stuff alone would be a major undertaking.

I knew Zoneminder was limited to one machine (aside from faking a
network camera using VLC or a second Zoneminder installation).  I
incorrectly assumed Mythzoneminder had the same limitation. My comments
2(?) years ago were wanting to work around that perceived limitation.


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