Re: [Tracker] Can I write a proprietary plug-in to extract meta data from a private file format?

On Wed, 2010-12-01 at 08:47 +0000, Martyn Russell wrote:
On 01/12/10 01:02, Lin, Mengdong wrote:
Many thanks for your confirmation! I've forwarded your advice to our legal department and hope we can 
pass the check.

There was some debate internally after your email about this. It is not 
widely agreed that what I said is accurate. So a legal representative 
would certainly be best to answer this.

The alternative is to re-license tracker-extract to LGPL which the team 
generally agrees with I believe.

Juergbi, can you recall the exact reasons why?

How I understand it is that due to tracker-extract being GPL, the used
libraries have to be GPL as well. In the case of the LGPL-licensed
libtracker-extract, this means that you need to make use of the LGPL
clause that allows you to use any LGPL-licensed code under the terms of
the GPL.

However, if you do this, you have to follow the GPL terms to
libtracker-extract for all extractor plugins as well. IANAL and you'll
need to check this with your legal department to be sure. The GStreamer
FAQÂ has an entry with a similar conclusion.

If we relicense tracker-extract and extractor plugins from GPL to LGPL,
this issue should no longer exist.


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