[mythtv-users] video playback routing

HP-mini blm-ubunet at slingshot.co.nz
Fri Mar 18 01:45:05 UTC 2016


On Thu, 2016-03-17 at 16:49 -0500, Dan Littlejohn wrote:
> 
> 
> On Thu, Mar 17, 2016 at 3:56 PM, Hika van den Hoven
> <hikavdh at gmail.com> wrote:
>         Hoi Dan,
>         
>         Thursday, March 17, 2016, 9:38:14 PM, you wrote:
>         
>         > On Thu, Mar 17, 2016 at 12:36 PM, Hika van den Hoven
>         <hikavdh at gmail.com> wrote:
>         
>         > Hoi Dan,
>         >
>         
>         >  Thursday, March 17, 2016, 6:09:37 PM, you wrote:
>         >
>          >> I have a two system setup with a master and a frontend.
>         The
>          >> frontend also has a slave backend that does recording (as
>         the
>          >> satellite box is where the frontend is at).  Both boxes
>         have access to a NAS nfs share.
>         >
>          >> Recently, I noticed that even though I am playing a video
>         on the
>          >> master it appears to be routed from the frontend?
>         >
>         >
>         >
>          >> myth://Videos@host2/video.iso
>         >
>          >> Why is this and how can I have either everything streamed
>         from the
>          >> backend or played locally?  There is some shuddering and
>         my guess is
>          >> it is due to all the traffic back and forth (frontend is
>         on a weak wireless connection).
>         >
>         >
>          >> Dan
>         >
>         >  I guess because the slave did the recording, so it is owned
>         by the
>         >  slave. A recording record contains the hostname. Possibly
>         if you
>         >  change this to the hostname of the master... Of cause the
>         path on both
>         >  machines should be the same. Also then playing back on the
>         slave would
>         >  then again create a similar situation.
>         >  Alternatively, you could try adding the path on both
>         machines to the
>         >  storage group. These records also contain a hostname field.
>         I hope
>         >  that it then first tries to find the file on the requesting
>         machine.
>         >  As I understand older version would catch it automatically
>         from the
>         >  nfs share, but no longer.
>         >
>         
>         > Hi Hika:
>         
>         > This is what puzzles me.  The master backend has the storage
>         group
>         > definition and the frontend slave backend does not.  I just
>         checked
>         > with nload and it is clearly streaming from the frontend to
>         the
>         > master backend (maybe both) and the frontend wireless
>         connection
>         > cannot keep up with the network load.
>         
>         
>         > Is this something that could be fixed?  I have been meaning
>         for a
>         > while to contribute to mythtv and would not mind fixing this
>         if
>         > someone can point me to where in the code it would need to
>         be adjusted.
>         
>         
>         > Dan
>         
>         
>         Please don't top-post!
>         
>         I don't know, but I do know that wireless even with SD has to
>         low
>         bandwidth, unless sometimes when there is direct line of
>         sight. So any
>         backend, whether master or slave, should be cabled. And
>         preferable at
>         GB speed.
>         
>         
>         Tot mails,
>           Hika                            mailto:hikavdh at gmail.com
>         
>         "Zonder hoop kun je niet leven
>         Zonder leven is er geen hoop
>         Het eeuwige dilemma
>         Zeker als je hoop moet vernietigen om te kunnen overleven!"
>         
>         De lerende Mens
>         
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>         
> 
> 
> 
> Hika:
> 
> 
> Sorry, my mistake top posting.  It has been a while since I posted to
> a newsgroup.
> 
> 
> Guess I will dig into it a bit then.  My frontend is also under
> powered so the way it works now I could not watch anything while
> anything else is going on with the master backend.  It does not make
> sense to me that routing inefficiently would be the preferred
> strategy.
> 
> 
> Dan
> 
https://www.mythtv.org/wiki/Storage_Groups#Multiple_Backends
Example 2 
Master Backend override.
Sounds like your issue?
https://www.mythtv.org/wiki/Setup_General#Miscellaneous_Settings





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