[Xerte-dev] Re: Problem with the video page, maybe the player?

[Smith, John]

Hi Tom,

I've done a bit of investigation and I can reproduce a similar problem, but only consistently on slide 13, the Peer Review one... it OCCASIONALLY happens on a few others or you get a small delay sometimes and that got me thinking what is different about that particular file...

The moov is fine... it plays fine downloaded in VLC... but it is the biggest of them all.

If you look at the attached Word doc then you will see that for every slide change, MediaElements makes 4 requests to get each mp4 (not really sure why it makes 2 pairs of requests). I assume the first is a HEAD request (although Chrome says it's a GET) to find out whether the server accepts ranges and to get the size... then it makes a Range Request and gets a 206 Partial back... Also, the video is responding as application/octet-stream and not video/mp4

Looking at your phpinfo (you need to rename or remove your setup folder) file you also have gzip and deflate turned on for that server. I think these are interfering with the MP4 and the Partial requests.

Can you fix the mime types and see if that makes a difference and if not then try turning either/both of gzip/deflate off for mp4s and see if that makes a difference?

Regards,

John Smith | Learning Technologist
Room A251, Govan Mbeki Building | School of Health & Life Sciences | Glasgow Caledonian University
Cowcaddens Road | Glasgow | G4 0BA
________________________________________
From: xerte-dev-bounces at lists.nottingham.ac.uk [xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Tom Reijnders [reijnders at tor.nl]
Sent: 03 August 2013 17:15
To: For Xerte technical developers
Subject: [Xerte-dev] Re: Problem with the video page, maybe the player?

John,

I published the LO:

  http://xot.12change.eu/play.php?template_id=423

If you have any idea where to look, we would be most grateful.

Tom

Op 3-8-2013 11:04, Smith, John schreef:
> Hi Inge,
>
> Definitely looks like a bug, possibly with the media player... unfortunately the link you sent, the LO hasn't been published so we can't access it to test. If you can change that then i'll take a look.
>
> Regards,
>
> John Smith | Learning Technologist
> Room A251, Govan Mbeki Building | School of Health & Life Sciences | Glasgow Caledonian University
> Cowcaddens Road | Glasgow | G4 0BA
> ________________________________________
> From: xerte-dev-bounces at lists.nottingham.ac.uk [xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Inge Donkervoort 12Change [i.donkervoort at 12change.eu]
> Sent: 02 August 2013 21:22
> To: xerte-dev at lists.nottingham.ac.uk
> Subject: [Xerte-dev] Problem with the video page, maybe the player?
>
> Hi,
>
> I have made an instructional learning object with a lot of small video's in it. They are all mp4's and working fine when I use the menu (except in firefox ;))
>
> But my lo doesn't work. Randomly at some point one of the videos has no view (only sound) or stops after 3 seconds. It's not always the same video.....
>
> I've made a short screen cast so you can see what I mean.
> http://screencast.com/t/If4PWD7B
>
> and a link to the lo
> http://xot.12change.eu/preview.php?template_id=423
>
>
> Any ideas?
>
> Bye,
> Inge
>
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--
--

Tom Reijnders
TOR Informatica
Chopinlaan 27
5242HM Rosmalen
Tel: 073 5226191
Fax: 073 5226196


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Glasgow Caledonian University is a registered Scottish charity, number SC021474

Winner: Times Higher Education’s Widening Participation Initiative of the Year 2009 and Herald Society’s Education Initiative of the Year 2009.
http://www.gcu.ac.uk/newsevents/news/bycategory/theuniversity/1/name,6219,en.html

Winner: Times Higher Education’s Outstanding Support for Early Career Researchers of the Year 2010, GCU as a lead with Universities Scotland partners.
http://www.gcu.ac.uk/newsevents/news/bycategory/theuniversity/1/name,15691,en.html
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