1

Mediamosa: Drupal—based open source video backend

Gold Sponsor ofDrupalCamp Kyiv 2011

Silver Sponsors ofDrupalCamp Kyiv 2011

4

Topics

What is it? How is works What about client side? Key features Past and future Opportunities

5

What is Mediamosa

Mediamosa is a video storage back-end

User

MediaMosaVideo frontend

REST calls:POST, GET

XML

6

Why build own 'youtube'?

Security Transcoding Metadata … and more -> ...

7

Key features

REST is an engine Scalable, service-oriented architecture (SOA) Using and implementing open standards

(Dublin core, CQL, SOLR) ACL: access limitations, f.e. domain and user

level Transcoding with FFMpeg Distributed job processing architecture

8

Key features, II

Supports Open standards Using Open protocols Code is self-documented Is Open source (GPL2) by itself Using open source software and approach —

trac, etc

9

Mediamosa is ...

Media Asset Management System (MAMS) Digital Asset Management System (DAMS)

10

Asset

Mediafile: Video(Original)

Asset

TitleDescription

Mediafile: Video(Transcoded FLV)

Mediafile: Video(Transcoded MPEG4)

DC/QDC fields like creation date, copyright, etc

11

Collection

Collection'Biology'

Asset 'Flowers'

Asset 'Human Body'

Asset 'Surgery'

Collection'Medicine'

Asset 'Sample Data'

Asset 'Animals'

12

Scalability

Tasks can be split up to dedicated servers:

Upload/download Job Streaming Still (Thumbnails)

13

Server Administration page

14

Drupal frontend: Mediamosa CK Several Drupal modules are available WLE (White Label Enduser Application) Mediamosa CK for Drupal 6 Mediamosa CK for Drupal 7, based on 'Media' module

– based on nice PHP/Drupal 7 feature called streams

– allows to refer to mediamosa files in the same way as to YouTube, Flickr, etc.

– youtube:// flickr:// mediamosa://

15

Front-end applications

Drupal modules Just create anything you like on any platform in

any language, REST is the key

16

REST sample

REST calls as a MediaMosa communication interface

Example: /mediafile/$mediafile_id [GET]

<items>

<item id="1">

<mediafile_id>V1XjsW9ojjpmUeLcH88QT53w</mediafile_id>

<asset_id>oDGgukVLA6bVQeLjSWZYV7a0</asset_id>

<app_id>14</app_id>

<owner_id>admin</owner_id>

<is_original_file>TRUE</is_original_file>

....

</item>

17

Implementation

Drupal 7 multisite installation with a lot of custom classes.

Every REST call, internal or external, is a class.

Drupal 7 with lazy loading is very important.

Developer experience: dive-in time.

18

Human/machine friendly standards

CQL, Contextual Query Language:dc.title any fish

dc.title any fish or dc.creator any sanderson

dc.title any fish sortBy dc.date/sort.ascending

RDF, Resource Description Framework:<rdf:Description rdf:about="http://www.example.org/index.html"><rdf:Description rdf:about="http://www.example.org/index.html">

<dc:creator rdf:resource="http://www.example.org/staffid/85740"/><dc:creator rdf:resource="http://www.example.org/staffid/85740"/>

</rdf:Description></rdf:Description>

19

Drupal front-end sample

20

What mediamosa is NOT

No fancy streaming solutions at the moment; basic HTTP

Videola

21

What is good for you in MM

Developer / system integrator An enterpreneur A representative from *.edu Current development contest

22

History/ Future

Development started in 2008 First release made in June 2009

Trends: video / eLearning is quite on demand Q4 2011: Mediamosa 3.5 planned

23

Video data today and tomorrow

24

Useful links

http://mediamosa.org

http://mediamosa.org/api

http://drupal.org/project/media

http://www.loc.gov/standards/sru/specs/cql.html

25

Questions?

+38 096 2323 346 dennis.povshedny@gmail.com