Open Video And Metadata Presentation

C
Open Video & Metadata

Fred Benenson
Open Video Conference, June 20th 2009
fred@creativecommons.org
Product Manager, Creative Commons
Saturday, June 20, 2009

What is C?
We’re a 501c3 corporation headquartered in
San Francisco with 30 employees around the
world.
We’rea non-proﬁt.
We do not offer legal services per se.

We offer free legal and technology tools that
allow creators to publish their works on more
ﬂexible terms than standard copyright.
Terms that allow public sharing, reuse, and
remix.

Why do we do what we do?


Two Reasons


#1


Analog Media

Uses
Implicating
All
© Law Possible
Uses of a
Work
Fair
Uses


Digital Media

Uses
Implicating
© Law

All Fair
Uses
Possible
Uses of a
Work* *Where every
use is a copy.


#2


The State of the
Commons Prior to 2002
Public Domain
Default Automatic © All Rights Reserved
No Rights Reserved

Orphan Works

Pre-1923 works, Federal Everything from Dinsey ﬁlms
Government Works, etc. to your notes, to most of the
web.


Introducing:
C
No Rights Reserved Some Rights Reserved All Rights Reserved

Orphan Works
Pre-1923 works, Federal
Government Works, etc. Everything from Dinsey ﬁlms

c to your notes, to most of the
web.


What does C actually do?


Attribution


ShareAlike


NoDerivatives


NonCommercial


Three Different Formats


Some Considerations
Public licenses are irrevocable and
perpetual
However works can be removed from public
and their licenses can be changed
CC licenses are non-exclusive
Dual licensing
Creative Commons licenses do not
preclude fair uses, fair dealing, etc.

Semantic Web Metadata
(RDF, RDFa)


“The Resource Description Framework (RDF) is a family of World Wide Web
Consortium (W3C) speciﬁcations originally designed as a metadata data model.
It has come to be used as a general method for conceptual description or
modeling of information that is implemented in web resources; using a variety of
syntax formats.” - Wikipedia


“[Simple] Wikipedia does not yet have an article with this name.” - Simple
Wikipedia


RDF, Really
“Triple” statements.
<Fred> <is giving> <a talk on RDF>.
<This work> <is licensed> <under CC BY>.
Serialized XML ﬁle
Like RSS, sort of.
Vocabularies to describe anything Using
URIs
Some Microformats are RDF, but not all.

RDFa
The “a” is for “attribute”
Using XHTML meta and link attributes.
A good compromise with the goals of
Microformats
Now a W3C Recommendation
ccREL is expressed in RDFa
Google, Yahoo, MySpace, Digg, etc.


<a rel="license" href="http://creativecommons.org/licenses/by/3.0/us/">
<img alt="Creative Commons License" style="border-width:0"
src="http://i.creativecommons.org/l/by/3.0/us/88x31.png" /></a> 
RDFa FAQ by <a
xmlns:cc="http://creativecommons.org/ns#" href="www.example.com"
property="cc:attributionName" rel="cc:attributionURL">John Doe</a>
is licensed under a <a rel="license"
href="http://creativecommons.org/licenses/by/3.0/us/">Creative Commons
Attribution 3.0 United States License</a>. Based on a work at
<a xmlns:dc="http://purl.org/dc/terms/1.1/" href="http://
wiki.creativecommons.org/RDFa"
rel="dc:source">wiki.creativecommons.org</a>. 
Permissions beyond the scope of this license may be available at <a
xmlns:cc="http://creativecommons.org/ns#" href="http://moreperms"
rel="cc:morePermissions">http://moreperms</a>.

dc:title/dc:type

RDFa FAQ

 dc is Dublin Core
 Title, Author, Type, etc.
 The inner HTML of the tag is “RDFa FAQ” which is the title of the work.
 This is a text document, so we point dc:type to the Dublin Core deﬁnition for
"Text" using the rel tag.
 Another document Type that could be speciﬁed with the href is http://
purl.org/dc/dcmitype/StillImage or http://purl.org/dc/dcmitype/Sound,
depending on the medium being licensed.

cc:attributionName/cc:attributionURL

<a xmlns:cc="http://creativecommons.org/ns#"
href="http://www.example.com" property="cc:attributionName"
rel="cc:attributionURL">John Doe</a>

 CC is using its own XML namespace, abbreviated using cc:
 The property is CC's AttributionName attribute, the value is the content
inside the anchor tag (in this case, the ﬁctitious John Doe), and a
relationship of cc:AttributionURL is deﬁned as being http://
www.example.com.

rel="license"
<a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/us/">
Creative Commons Attribution-Share Alike 3.0 United States License</a>.

 Most basic and fundamental part of CC's usage of RDFa
 Always included in the HTML offered, regardless of whether users ﬁll out
the "Additional Information" section.
 The rel speciﬁes the relationship of the href's URL. In this case, the
relationship is "license" and the URL is a standard Creative Commons
license.

dc:source
Based on a work at <a xmlns:dc="http://purl.org/dc//"
href="http://wiki.creativecommons.org/RDFa" rel="dc:source">
wiki.creativecommons.org</a>

 Similar to dc:title, dc:source speciﬁes where the original source of the ﬁle is
located.
 Flickr does this and its awesome.
 In this case it is pointing to http://wiki.creativecommons.org/RDFa


cc:morePermissions
Permissions beyond the scope of this license may be available at <a
xmlns:cc="http://creativecommons.org/ns#" href="http://moreperms"
rel="cc:morePermissions">http://moreperms</a>.

 Part of the CC+ protocol, creators can specify a URL where re-users of CC
licenses can obtain more rights to the work.
 Here, the nonexistent URL of http://moreperms is used as a placeholder.

File Metadata
(XMP, Ogg, etc.)


liblicense
 Low-level license metadata integration for applications.
 Features:
 Extract and write license information for files
 Supports enumeration of available licenses
 Wraps internationalized license information for Creative
Commons licenses
 Bindings for dynamic languages (currently Python and Ruby)
 Extensible support for file types using module system
 No specific GUI library dependency allows applications to
build the graphical chooser most appropriate for their
platform.
 FLAC, MP3, XMP, Ogg, GSF.

License Tagger Demo App


ffmpeg2theora
$> ffmpeg2theora -a 3 -v 7 --pp de,tn:256:512:1024
--artist "Fred Benenson" --title "RDFa Video"
--date "June 2009" --location "NY, NY"
--organization "Creative Commons (http://www.creativecommons.org)"
--copyright "Copyright 2009, Fred Benenson"
--license "Creative Commons Attribution-ShareAlike 3.0"
-o video.ogv video.dv

 Ogg Theora supports a
license ﬁeld as well as other
metadata.
 VLC can expose it.


Standardized Assets


Help?!


How C
Uses Open Video &
Metadata


Try Ogg Player
Fall Back to Flash Player
<video src="http://player.uncensoredinterview.com/e/11222.ogv" controls
width="384" height="216"> 
<object type="application/x-shockwave-flash" width="384" height="216"
data="http://player.uncensoredinterview.com/e/11222.swf">
<param name="movie" value="http://player.uncensoredinterview.com/e/
11222.swf"></param><param name="allowfullscreen" value="true"></param>
</object>
</video>

 Firefox 3.5, Chrome natively supports Ogg + <video> within HTML5
 Safari, IE? Anyone?
 Push to default YouTube to OGV instead of H.264
 No good excuse from Google.

Open Video And Metadata Presentation

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