I see, that's unfortunate...

Found this page with more details about the one way compatibility, it's for 
Apache License vs GPL but since ECL is based on Apache I'm guessing it's the 
same reason.

http://www.apache.org/licenses/GPL-compatibility.html

J.
On Jul 3, 2012, at 8:58 AM, Christopher Brooks wrote:

> This is a subtlety, but compatibility between OSS licenses is not
> bidirectional.  ECL 2 is compatible with GPL (e.g. if you write GPL
> software you can use ECL software in it), but the GPL is not compatible
> with the ECL 2 (e.g. if you write ECL software you cannot include GPL
> software in it).
> 
> Regards,
> 
> Chris
> 
> On Tue, 3 Jul 2012 08:55:57 -0700
> Jaime Gago <[email protected]> wrote:
> 
>> Chris,
>> ClassX is GPL indeed but GPL is listed as _compatible_  with ECL 2.0
>> since version 3 [1].
>> 
>> Since ClassX was open sourced after the release of GPLv3 and that the
>> link on their website points at the GPLv3 license [2] it seems ClassX
>> is GPLv3.
>> 
>> Am I missing something?
>> 
>> 
>> [1]
>> http://www.gnu.org/licenses/license-list.html#GPLCompatibleLicenses
>> [2] http://www.gnu.org/copyleft/gpl.html On Jul 2, 2012, at 7:46 PM,
>> Brooks, Chris wrote:
>> 
>>> ClassX is GPL, and GPL is incompatible with ECL 2.0, so please make
>>> sure that if you do do something based on ClassX you do not commit
>>> it to the MH repo.
>>> 
>>> Chris
>>> ________________________________________
>>> From: [email protected]
>>> [[email protected]] on behalf of Jaime
>>> Gago [[email protected]] Sent: 02 July 2012 19:43 To:
>>> Matterhorn Users Subject: Re: [Matterhorn-users] [Opencast]
>>> GaliTracker: Automatic professor     tracking for MH
>>> 
>>> Sorry to revisit an old thread, but I missed it until today...
>>> 
>>> In terms of video tracking aka Interactive Region of Interest,
>>> ClassX [1] developed at Stanford delivers with the same kind of
>>> technology as the "GaliTracker" but it has been "open sourced" [2],
>>> which means the advanced detection algorhitms are available to
>>> Matterhorn.
>>> 
>>> Thus I'd suggest to anybody interested in integrating such features
>>> with Matterhorn to take a look at ClassX.
>>> 
>>> [1] http://classx.stanford.edu/ClassX/
>>> [2] http://classx.sourceforge.net/
>>> 
>>> 
>>> 
>>> On Jun 12, 2012, at 7:02 AM, Schulte Olaf A. wrote:
>>> 
>>>> [SNIP; also taking this to matterhorn-users]
>>>> 
>>>>> Anyway, we will release under ECL a MH workflow operation that
>>>>> will be able to "glue" together VGA and professor video Side by
>>>>> Side but without the tracking engine. The output will be
>>>>> something like this:
>>>>> 
>>>>> http://tv.teltek.es/almacen/downloads/34/1714_cut.mp4
>>>>> 
>>>>> Another operation could be released to give access to the
>>>>> GaliTracker service.
>>>>> 
>>>>> Could these ideas make sense ?
>>>> 
>>>> A workflow like this could make sense if it were to be flexible
>>>> with respect to some variables:
>>>> 
>>>> - overall output ratio (4:3 / 16:9)
>>>> - ratio of input (e.g. 4:3 VGA plus 16:9 video or two 4:3 sources)
>>>> - the background colour (white could help you embed smoothly to
>>>> some webpages)
>>>> 
>>>> O
>>>> 
>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> CG> Regards
>>>>> CG> Clemens
>>>>> 
>>>>> 
>>>>> CG> Vicente Goyanes wrote:
>>>>>>> Dear list.
>>>>>>> 
>>>>>>> In our efforts to improve the usability of Dual-Stream MH
>>>>>>> recordings in Single-Stream enviroments (iTunesU, YT, mobile
>>>>>>> devices) I would like to share with the community that we are
>>>>>>> developing a solution that we called "GaliTracker".
>>>>>>> 
>>>>>>> With this solution VGA and professor videos are "glued"
>>>>>>> together side by side while the layout is optimized by
>>>>>>> dynamically cropping and zooming the professor video.
>>>>>>> 
>>>>>>> GaliTracker tries to guarantee plenty of room for the VGA video
>>>>>>> while the professor is always present in a smaller area, but
>>>>>>> large enough for the viewers to read non verbal communication,
>>>>>>> keep them engaged, etc.
>>>>>>> 
>>>>>>> More info here:
>>>>>>> 
>>>>>>> http://wiki.teltek.es/display/GaliTracker/GaliTracker+Home
>>>>>>> 
>>>>>>> 
>>>>>>> Also a Lightning Talk at the MH Unconference has been proposed:
>>>>>>> 
>>>>>>> http://unconference.opencast.org/sessions/galitracker-automatic-profe
>>>>>>> ssor-tracking
>>>>>>> 
>>>>>>> (please vote for it if you are interested)
>>>>>>> 
>>>>>>> We hope this new add-on can enrich the MH ecosystem, improving
>>>>>>> the user experience of MH recordings on mobile devices and
>>>>>>> traditional distribution channels as YouTube or iTunesU.
>>>>>>> 
>>>>>>> 
>>>>>>> Best Regards,
>>>>>>> Vicente
>>>>>>> 
>>>>>>> --
>>>>>>> Vicente Goyanes
>>>>>>> Gerente - CEO
>>>>>>> [[email protected]]
>>>>>>> 
>>>>>>> TELTEK Video Research, S.L.
>>>>>>> Pza Miralles s/n
>>>>>>> Campus Universitario
>>>>>>> 36310 Vigo - Pontevedra
>>>>>>> T (+34) 986 160 125
>>>>>>> M (+34) 619 318 484
>>>>>>> [email protected] | www.teltek.es
>>>>>>> 
>>>>>>> [IMPORTANTE] La información que pudiera contener este
>>>>>>> comunicado, relacionada con datos de carácter personal, se
>>>>>>> encuentra amparada en la Ley Orgánica de Protección de Datos
>>>>>>> 15/99, que compromete a no utilizar estos datos para fines que
>>>>>>> no sean los estrictamente necesarios para la realización de su
>>>>>>> cometido, añadiendo además la absoluta confidencialidad y
>>>>>>> exclusividad, quedando prohibida a cualquier persona su
>>>>>>> revelación, copia, distribución o el ejercicio de cualquier
>>>>>>> acción relativa a su contenido. Si recibe este correo
>>>>>>> electrónico erróneamente, ruego lo elimine de todos sus
>>>>>>> archivos. [#]
>>>>>>> 
>>>>>>> _______________________________________________
>>>>>>> Community mailing list
>>>>>>> [email protected]
>>>>>>> http://lists.opencastproject.org/mailman/listinfo/community
>>>>>>> 
>>>>>>> 
>>>>>>> To unsubscribe please email
>>>>>>> [email protected]
>>>>>>> _______________________________________________
>>>>>>> 
>>>>> 
>>>>> CG> _______________________________________________
>>>>> CG> Community mailing list
>>>>> CG> [email protected]
>>>>> CG> http://lists.opencastproject.org/mailman/listinfo/community
>>>>> 
>>>>> 
>>>>> CG> To unsubscribe please email
>>>>> CG> [email protected]
>>>>> CG> _______________________________________________
>>>>> 
>>>>> 
>>>>> 
>>>>> Un Cordial Saludo / Best Regards
>>>>> 
>>>>> --
>>>>> Vicente Goyanes de Miguel
>>>>> Coordinador Asistencia Técnica Multimedia
>>>>> Tel: +34 986 811937 / Skype: vicente.goyanes Pza Miralles s/n
>>>>> Universidad de Vigo
>>>>> 36310 Vigo
>>>>> mailto:[email protected]
>>>>> 
>>>>> [IMPORTANTE] La información que pudiera contener este comunicado,
>>>>> relacionada con datos  de carácter personal, se encuentra
>>>>> amparada en la Ley Orgánica de Protección de Datos  15/99, que
>>>>> compromete a no utilizar estos datos para fines que no sean los
>>>>> estrictamente  necesarios para la realización de su cometido,
>>>>> añadiendo además la absoluta confidencialidad y exclusividad,
>>>>> quedando prohibida a cualquier persona su revelación, copia,
>>>>> distribución o el ejercicio de cualquier acción relativa a su
>>>>> contenido. Si recibe este correo electrónico erróneamente, ruego
>>>>> lo elimine de todos sus archivos. [#]
>>>>> 
>>>>> _______________________________________________
>>>>> Community mailing list
>>>>> [email protected]
>>>>> http://lists.opencastproject.org/mailman/listinfo/community
>>>>> 
>>>>> 
>>>>> To unsubscribe please email
>>>>> [email protected]
>>>>> _______________________________________________
>>>> _______________________________________________
>>>> Matterhorn-users mailing list
>>>> [email protected]
>>>> http://lists.opencastproject.org/mailman/listinfo/matterhorn-users
>>> 
>>> _______________________________________________
>>> Matterhorn-users mailing list
>>> [email protected]
>>> http://lists.opencastproject.org/mailman/listinfo/matterhorn-users
>>> _______________________________________________
>>> Matterhorn-users mailing list
>>> [email protected]
>>> http://lists.opencastproject.org/mailman/listinfo/matterhorn-users
>> 
>> _______________________________________________
>> Matterhorn-users mailing list
>> [email protected]
>> http://lists.opencastproject.org/mailman/listinfo/matterhorn-users
> 
> 
> 
> -- 
> Christopher Brooks, BSc, MSc
> ARIES Laboratory, University of Saskatchewan
> 
> Web: http://www.cs.usask.ca/~cab938
> Phone: 1.306.966.1442
> Mail: Advanced Research in Intelligent Educational Systems Laboratory
>     Department of Computer Science
>     University of Saskatchewan
>     176 Thorvaldson Building
>     110 Science Place
>     Saskatoon, SK
>     S7N 5C9

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