[FFmpeg-devel] [PATCH] 5 patches from the Debian packaging

Andreas Cadhalpun andreas.cadhalpun at googlemail.com
Mon Mar 10 19:19:44 CET 2014

On 10.03.2014 01:29, Timothy Gu wrote:
> On Sun, Mar 9, 2014 at 11:42 AM, Andreas Cadhalpun
> <andreas.cadhalpun at googlemail.com> wrote:
>> I tried to convert the t2h.init to t2h.pm (attached) and mostly succeded,
>> but I think changing the title is not that easy.
> Yes. I found some examples that includes adding custom callback for
> subroutines that might be helpful:
> http://anonscm.debian.org/gitweb/?p=debian-tex/texinfo.git;a=tree;f=tp/init;hb=HEAD

I managed to change both the title and the float handling, but 
unfortunately this involved copying the respective default functions 
from HTML.pm in texinfo, which are licensed under GPLv3+.
The float representation additionally requires the following (copied 
from [1]) added to default.css:
.note {
     margin: 1em;
     border: 1px solid #bbc9d8;
     background-color: #dde1e1;

.important {
     margin: 1em;
     border: 1px solid #d26767;
     background-color: #f8e1e1;

> Well, it is an image file so i don't think there should be a "source" for it :)

Not quite, the 'source' is the preferred form of modification, which the 
icon file is probably not.
I don't think the icon was created independently from the main logo, but 
is rather a reduced size version of it. Furthermore the favicon.png says 
it's created by 'Adobe ImageReady', thus the source is probably a PSD file.

> The file is used for the website (e.g. http://ffmpeg.org/ffmpeg.html),
> but I guess it's not needed.

It's not really needed, but the HTML documentation still has:
<link rel="icon" href="favicon.png" type="image/png" />

> Also yes, the license of the file is not clear. We lost contact with
> the author of the logo, Hervé Flores, and it was not explicitly
> released under a free license. However he did "provide us with
> sufficient rights to use the art in any form: not limited to the web
> site, t-shirts, and print media; to refer only to the FFmpeg project
> at no cost to us" ( from
> http://trac.ffmpeg.org/wiki/SubmitALogo#UsageRightsLicenseInformation).

The next sentence there is:
"The rights though should be restricted enough not to allow the art from 
being used for non-FFmpeg representation."

Thus I think it is not possible to release this under a free license, 
which would obviously allow the use for non-FFmpeg representation.
(Correct me, if I'm wrong here, I'm no lawyer.)
I think for this kind of restriction trademarks and not copyright should 
be used.

Anyway, since the license of this icon is not clear, it shouldn't be in 
the release tarball.

Best regards,

1: https://ffmpeg.org/git-howto.html

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