[Server-devel] Network Backup of Journal Video Items

Sebastian Silva sebastian at sugarlabs.org
Sat Mar 26 05:24:44 EDT 2011

Thanks for your response.
Originally I thought I would transmit video directly with gstreamer to 
the server.
I've been following 
and so far I've had mixed luck. I think you're right the WLAN is not 
good enough for doing this reliably.

So now I'm going to try and ease the workflow by having each laptop 
transmit asynchroniously what they record
The idea is to save locally and not have to go laptop by laptop 
recovering video material.
So I'm going to try and suggest to use File Share Activity:
I'm still trying to get the server component to fetch all files.
I will probably patch the activity to be able to share all video journal 

We will use record unless we can come up with a clever gst-launch line 
that will record in hi-res to USB,
and a way to share those files as well.

It will be the children who record so the user experience must be pretty 
simple and friendly.

Our working document for the project is:
the event will document the experience in native communities in Lima and 
the highlands of Puno:

Thanks for your suggestions
I cc other in the team to keep them on the loop.

El 24/03/11 14:15, Martin Langhoff escribió:
> Hi Sebastian,
> can you tell us a bit more?
> You be recording with XO-1 units... using Record in Sugar? What
> version of Sugar and Record? Or you'll use gstreamer directly to the
> server?
> One possibility would be to write to an NFS share -- but 'realtime'
> recording of videos over wlan is tricky and likely to fail. The wlan
> connection can easily get interference from external sources or just
> contention (from too many users on the same AP or frequency).
> If it's possible, recording locally and then having a backup or
> explicit upload/copy is the most reliable method.
> Local recording on an XO-1 is limited by the JFFS2 storage -- if you
> are prepared to use something other than standard Record, you may be
> able to capture at high resolution and store without compression (or
> with minimal compression) writing straight to a fast USB Flash
> storage, or an SD card.
> This will give you the best starting quality -- which you'll need as
> you're intending to use this for a documentary.
> cheers,
> m

Sebastian Silva
Oversight Board Member
Sugar Labs

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