[mythtv-users] pixelation when using nfs for playback

Steven Adeff adeffs.mythtv at gmail.com
Thu Apr 28 15:36:05 UTC 2011

On Wed, Apr 27, 2011 at 12:23 PM, Michael T. Dean
<mtdean at thirdcontact.com> wrote:
> On 04/27/2011 11:28 AM, Steven Adeff wrote:
>> Gotcha. Let me re-ask the question then with better background information.
>> I'm running 0.24-fixes from the Mythbuntu auto-builds repository.
>> I have a master backend with all my recording drives (6, via storage
>> groups). I have a remote frontend/backend with a single cable box
>> connected via firewire. This box thus has the recording drives NFS
>> mounted so it can write to them.
>> I also have a frontend in my bedroom which I had mounted them for some
>> reason as I was playing around with something.
>> At some point, perhaps a week or two ago I started to notice heavy
>> pixelation on playback, especially of things currently recording. A
>> while ago there used to be a setting to always playback via the myth
>> protocol's streaming and not via the locally mounted drives. I had it
>> check marked. Since this pixelation has started occurring I noticed
>> that I no longer see this option. Easy enough on my frontend-only
>> systems, I just don't mount the drives locally. But for the combined
>> system this is an issue as I don't have that option anymore.
>> So as you can see, I need to figure out how to mount the drives to the
>> combined FE/BE without incurring the pixelation issue. I tried CIFS
>> but that seems to be even slower than NFS and has much more pixelation
>> issues.
>> If I could still enable the method where it will always stream for
>> playback that would probably solve the issue.
> If that setting was enabled before on the remote frontend/backend, it
> still is enabled.
> On new frontends it's disabled (so if you set up your remote
> frontend/backend system since the setting was removed, it's disabled).
> Eventually, we plan to have code to just do the right thing.  In the
> interim, the recommendation is for frontends that want to use the MythTV
> protocol to not mount remote recording drives using NFS or to mount them
> at a different location from the one defined by the recording hosts'
> Storage Group directory lists.

How will you know what "the right thing" to do is?
Do you happen to know what the setting for this is in the database so
I can enable it manually?


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