[Building Sakai] Videos and Sakai

Matthew Jones matthew at longsight.com
Thu Mar 28 14:19:47 PDT 2013


Hmm, I'm not sure where I saw 2000.

Anyway, they were on a 4-6 month schedule and did plan 1.4 to be out at
last summers unconference, but it's slipped and still isn't released.
(Perhaps also consistent with us?)

I still don't know enough about the LTI hookup and what it offers to know
if it would work out as a general remote video repository. I've set-it up
and played with it for about 20 hours and from what I saw in 1.3, the
answer was it wasn't possible with what was available by default. You can
upload videos, it can encode the videos but the integration with anything
external wasn't too obvious. There was this ticket that Dave Horwitz was
working on, but some of the tasks were still open and pushed back to 1.5?
So it might be a good solution, eventually.

https://opencast.jira.com/browse/MH-8311


On Thu, Mar 28, 2013 at 5:13 PM, Steve Swinsburg
<steve.swinsburg at gmail.com>wrote:

> FYI, Matterhorn 1.3 was released March 2012, and had pretty regular
> releases before that. Fairly consistent with our major release cycle ;)
>
> Matterhorn might be worth exploring, decoupling the media repo and player
> from the lecture capture, if at all possible.
>
> cheers,
> Steve
>
> On 29/03/2013, at 12:51 AM, Matthew Jones <matthew at longsight.com> wrote:
>
> I don't see that as the biggest problem, I see re-encoding whatever the
> user uploads as a web compatible format to be the biggest problem. They
> can't just put in a .wmv, .mov, or a .3gp. Browsers won't play it and users
> would have to download it and figure it out. It would also probably be
> poorly compressed, leading to that large cost of backup.
>
> Right now you need to convert anything uploaded to both H.264 (Because
> that's the only format Internet Explorer plays) and WebM (Because Firefox
> won't play H.264, except on Windows, in the newest nightly, if you enable
> an option). This conversion isn't possible in Java, Matterhorn has scripts
> that do it with ffmpeg or some other tool. Since you have to store 2 video
> files (and *possibly* the original for some future day when it can be
> re-converted) it further increases the storage requirements. Youtube seems
> to store like 10 different versions of the same file in different
> resolutions.
>
> If your instructors or support staff properly convert and upload your
> videos locally (maybe using Handbrake) in the correct format to Sakai, you
> can use the movie player link (Strobe) to play your video from any tool or
> from Lessons, but it doesn't do that part for you.
>
> Do you have any ideas of a remote video repository?
>
> - I guess Kaltura hosted and the integration is pretty good but it has a
> high cost to it. The Community Source Edition according to this review [1]
> just keeps trying to sell you up to the the hosted version and I never had
> luck in the past getting it to work (expect at least a few days to a week
> of developer time to try to get anything going out of it).
> - Octopus Video [2] (mostly a Drupal module) hasn't been updated in over a
> year,  isn't straightforward to setup but seemed promising with a little
> LTI integration work.
> - Matterhorn hasn't had a new release (1.4) in 3 years and is mostly aimed
> at automated lecture capture rather than ad-hoc video repository hosting,
> though maybe the UCT LTI mods improved upon that.
>
> [1]
> http://www.timmmmyboy.com/2013/01/why-im-getting-rid-of-kaltura-and-why-you-should-too/
> [2] http://www.octopusvideo.org/
>
>
> On Thu, Mar 28, 2013 at 7:30 AM, Adam Marshall <adam.marshall at it.ox.ac.uk>wrote:
>
>> The biggest problem we faced concerning videos in sakai is the cost of
>> backups. Disc space these days is cheap but backing up files is not; adding
>> the storage of videos would vastly increase disc usage and therefore the
>> cost of keeping backup .
>>
>> Our (as yet unimplemented) idea was to create a clone of the resources
>> tool which stores its files in a different location to the regular tool, we
>> would then o A vocabulary file not to backup the alternative filestore.
>>
>> Adam
>>
>> -----Original Message-----
>> From: sakai-dev-bounces at collab.sakaiproject.org [mailto:
>> sakai-dev-bounces at collab.sakaiproject.org] On Behalf Of Ciellie
>> Sent: 28 March 2013 11:17
>> To: sakai-dev at collab.sakaiproject.org
>> Subject: [Building Sakai] Videos and Sakai
>>
>> We need to address the issue of videos, animations similations etc
>> (learning objects). not lecture capturing in sakai, and need your help on
>> this.
>>
>> We're thinking of something like a local "youtube" like implementation
>> for this, but need to ask you
>>
>> 1) Is video within sakai's resources an option? We want to upgrade to
>> sakai
>> 2.9.1 in June if not, what kind of software do you recommend.
>> 3) What is Matterhorn's limitations if any in providing a service like
>> this. We are planing a Matterhorn implimentation pilot for the second half
>> on 2013, but this will be for lecture capturing only.
>>
>>
>> Thank you for the help
>>
>> Ciellie
>>
>>
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