Nate Aune Managing Multimedia Content And Podcasts With Plone

Multimedia and Podcasting
with Plone
Plone Conference 2007
Naples, Italy

Nate Aune
www.jazkarta.com
1

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
2

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
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3

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
4

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
5

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
6

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)
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A natural evolution

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

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8

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

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9

No more new content types
Old approach New approach

• ATAudio
• ATVideo
• ATPhoto

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• ATAudio
• ATVideo
• ATPhoto

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• ATFile
• ATAudio • Plone4ArtistsAudio
• ATVideo • Plone4ArtistsVideo
• ATPhoto • ATImage
• Plone4ArtistsImage
• ATLink
• Plone4ArtistsLink
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12

Pure Zope 3
components
with
Plone
wrappers

13

Example sites
• talk.bmc.com - blogs and podcasts
• engagemedia.org - social justice videos
• thedailyreel.com - online guide to videos
• bilive.it - online community for musicians
• phonogen.com - mp3s for artists
• plone.tv - aggregated audio/video/screencasts
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TheDailyReel.com

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ID3 Metadata in iTunes

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Add a normal File

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Add new ﬁle form

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Audio view page

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Demo tool icons

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Edit audio
• ID3 metadata is auto-
extracted

• Modified metadata is
written back to the file

• Cover art image field
• Genre vocabulary
• Comment field
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Add blob ﬁle

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Normal ﬁle listing

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Activate audio container

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View is now track listing

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Add via WebDAV

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Connect to server

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Mounted Plone folder

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Drag-n-drop copy to Plone

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Track listing after upload

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Embedding video

1. 2.

3.

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Podcasting

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Podcast feed

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Subscribe to podcast

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Smart Folders

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Activate media container

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Smart Folder as podcast

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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)
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Challenges of large ﬁles
Uploading and Storing

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Pain points

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

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Making upload less tedious

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

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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
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PloneFlashUpload

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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)
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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

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Community feedback
• Commenting
• easycommenting, zc.comment
• Ratings
• lovely.rating, contentratings, RatingsEngine
• Tagging
• lovely.tag, tagger, topicwidget
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What’s next
plone4artists.org/products/plone4artistssite/roadmap

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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
56

Plone4Artists
BoF & sprint
• BoF:
• when: TODAY! @ 5:15pm
• Sprint
• when: October 13-15, 2007
• where: Naples, Italy
• http://openplans.org/projects/plone4artists-sprint
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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)
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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

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

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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
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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
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