PyConBrasil presentation: Multimedia and Podcasting with Plone

Multimedia
with Plone
PyConBrasil 2007
Joinville, Brazil

Nate Aune
www.jazkarta.com

What is podcasting?
• Simpliﬁed distribution
• audio/video ﬁles as enclosures in an RSS/
Atom feed

• Subscribe once and forget about it
• On-demand
• Users can listen/watch your multimedia
content on their device of choice

• Don’t need to visit your website

What is Plone’s answer?
• Plone out-of-the-box
• File content type (no metadata, no play)
• Syndication is only RSS 1.0 (need RSS 2.0)
• PloneMultimedia suite of add-on products
• ATAudio, ATVideo, ATPhoto
• qRSS2Syndication for podcasting
Multimedia and Podcasting with Plone (10/27/06) www.jazkarta.com 866.864.4918
12

What is Plone4Artists?
• Grassroots project to build an out-of-the-box
portal solution for artist communities

• Built on top of the core Plone product
• Leverages Zope 3 component architecture
• Doesn’t introduce new content types
• Easy to extend to support new media types
• Easy to install and pre-conﬁgured

Features
• Drag-n-drop addition of content (WebDAV)
• Extraction of audio/video metadata (ID3)
• Playback of audio and video in browser (Flash player)
• Podcasting and vodcasting (RSS 2.0)
• Calendaring (import/export of iCal)
• Assigning Creative Commons licenses
• Improved uploading using Flash, Java applet, Tramline
• Community features: tagging, rating, commenting

Plone4Artists
Core Components

• Plone4ArtistsSite
• Plone4ArtistsAudio (upload mp3 or ogg)
• Plone4ArtistsVideo (upload video or embed)
• Plone4ArtistsCalendar (month & listing view)

SVN at http://plone4artists.org/svn/projects

Plone4Artists
Additional components
• Plone4ArtistsNewsletter (by Malthe Borch)
• PloneFlashUpload (bulk uploads in browser)
• ContentLicensing (assign licenses to content)
Not released
• ContentRating (rate any piece of content)
• ContentTagging (tag any piece of content)
• Plone4ArtistsPodcast (embed audio in blog)
• Plone4ArtistsRevverVideo (by Alec Mitchell)
• Plone4ArtistsSubtyper (subtype any content)

A natural evolution

• CMFAudio (CMF-based)
• ATAudio (Archetypes-based)
• Plone4ArtistsAudio (Zope 3)

19

Why Zope 3?
• Usability - user uploads File and system
ﬁgures out how to handle it. Easier with Z3

• Pluggability - easily extend to support other
formats besides MP3 and Ogg

• Reusability - abstracting the code into Zope
3 components means it is easier to reuse

20

No more new content types
Old approach New approach

• ATAudio
• ATVideo
• ATPhoto

54

No more new content types
Old approach New approach

• ATFile
• ATAudio • Plone4ArtistsAudio
• ATVideo • Plone4ArtistsVideo
• ATPhoto • ATImage
• Plone4ArtistsImage
• ATLink
Multimedia and Podcasting with Plone (10/27/06)
• Plone4ArtistsLink
www.jazkarta.com 866.864.4918
54

Pure Zope 3
components
with
Plone
wrappers

Success stories

• talk.bmc.com - blogs and podcasts
• engagemedia.org - social justice videos
• thedailyreel.com - online guide to videos
• bilive.it - online community for musicians

ID3 Metadata in iTunes

21

22

Add a normal File

23

Add new ﬁle form

24

Audio view page

25

Demo tool icons

26

Edit audio
• ID3 metadata is auto-
extracted

• Modified metadata is
written back to the file

• Cover art image field
• Genre vocabulary
• Comment field
27

Add blob ﬁle

28

Normal ﬁle listing

29

Activate audio container

30

View is now track listing

31

Add via WebDAV

32

Connect to server

33

Mounted Plone folder

34

Drag-n-drop copy to Plone

35

Track listing after upload

36

Embedding video

1. 2.

3.

Podcasting

37

Podcast feed

38

39

Subscribe to podcast

40

Smart Folders

41

Activate media container

42

Smart Folder as podcast

43

RSS 2.0 Syndication
• Using basesyndication (Zope 3 adaptors)
• also used to provide RSS feeds for Quills
• Support iTunes metadata
• targeted for Plone4ArtistsAudio 1.0 ﬁnal
• Syndication of other media ﬁles
• Vodcasting (videos), Photocasting (photos)
44

Challenges of large ﬁles
Uploading and Storing

45

Pain points

• Uploading large ﬁles is tedious
• ZODB is currently not designed to store
large ﬁles

46

Making upload less tedious

• WebDAV/FTP
• gives you progress bar but it can be buggy
• PloneJUpload - java applet
• not all browsers have Java support

47

Preferred upload
solutions
• ZipFileTransport
• upload a Zip ﬁle and it’s extracted on the
server

• PloneFlashUpload
• upload multiple ﬁles using Flash widget in
browser

• Tramline
• bypass Zope and use Apache

Easy install
• Automated install using buildout:
• Downloads and installs:
• Zope, Plone, PIL, add-on products
• Creates Plone instance
• Quickinstalls Plone4Artists products
• Applies GenericSetup proﬁle (TODO)
• Imports sample content using gsxml (TODO)

Buildout makes it easy
Check out the buildout, bootstrap and run buildout
$ svn co http://plone4artists.org/svn/projects/
p4a.buildout
$ cd p4a.buildout
$ python bootstrap.py
$ bin/buildout -v (go get a coffee)
Start the instance
$ bin/instance fg

Community feedback
• Commenting
• easycommenting, zc.comment
• Ratings
• lovely.rating, contentratings, RatingsEngine
• Tagging
• lovely.tag, tagger, topicwidget
57

What’s next
plone4artists.org/products/plone4artistssite/roadmap

53

More info
• Product pages:
• plone4artists.org/products
• SVN repository:
• plone4artists.org/svn/projects
• Mailing list:
• groups.google.com/group/p4a-user
• IRC:
• #plone4artists on irc.freenode.net

Plone4Artists /
multimedia sprint
• when:
• October 13-15, 2007
• where:
• Naples, Italy
• what:
• http://openplans.org/projects/plone4artists-sprint

Idea: Plone4ArtistsLink
• Existing new content types
• ATGoogleVideo
• ATOdeoAudio
• ATYouTubeVideo?
• Activate remote media on an ATLink
• Identiﬁes remote service (Google, Odeo,YouTube)
• Applies an appropriate view (Flash player)
55

Why store media on FS?

• Avoid ZODB bloat
• Expose to 3rd party streaming software
• Easier to backup or move to another system
• Transcode video ﬁles

50

Alternative storage layers
• FileField(‘mediaﬁle’, storage=...)
• ExternalStorage
• used on plone.org’s PloneSoftwareCenter
• FileSystemStorage
• used by Andreas Jung for large media project

51

Alternative ﬁle ﬁeld
• BlobFile
• dependent on blob
• ATTramline
• dependent on Tramline
• AttachmentField
• new version has FlexStorage
• PLIP #154 - Large File Handling
• http://plone.org/products/plone/roadmap/154
52

Preferred solutions
• ZODB with blob support
• Now working on Zope 2.9 / 2.10 / 2.11
• Use with ATBlobField from Enfold Systems
• Amazon S3
• scalable storage solution
• pay for what you use

PyConBrasil presentation: Multimedia and Podcasting with Plone

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PyConBrasil presentation: Multimedia and Podcasting with Plone