media-metadata-examples-fr

2008-12-20T06:23:59Z

DelroLicra: reldomvide

dombasch
Ceci est une page exploratoire Ã utiliser pour le stockage de diffÃ©rentes donnÃ©es multimÃ©dia et profils de mÃ©todonnÃ©es, formats et pratiques actuellement utilisÃ©s sur le web. Parce que c'est le tout tout dÃ©but de l'exploration, nous devrions inclure autant de types de multimÃ©dia que possible dans la discussion ouverte - mais svp assurez-vous de dÃ©poser votre information dans la portion correcte de cette page.

= Objectif de cette exploration (ou : le ProblÃ¨me) =

L'objectif des Ã©tudes sur cette page est de dÃ©terminer la faisabilitÃ© et la demande pour un format sÃ©mantique de balisage flexible pour les paradigmes en rapport avec le multimÃ©dia.

Ceci couvre des choses comme :
<ul>
<li>Fournir des mÃ©tdonnÃ©es associÃ©es Ã des fichiers liÃ©s multimÃ©dia.Typiquement, la mÃ©tadonnÃ©es multimÃ©dia est stockÃ©e dans le titre du fichier mÃ©dia lui-mÃªme - qui a des implications massives pour toute application oÃ¹ la mÃ©tadonnÃ©e doit Ãªtre indexÃ©e, cherchÃ©e ou rendue accessible Ã l'extÃ©rieur. Bien sÃ»r, mÃªme si vous pourriez facilement accÃ©der aux portions correctes d'un fichier mÃ©dia Ã distance, vous devriez encore coopÃ©rer avec une multitude de formats de mÃ©tadonnÃ©es ouverts et propriÃ©taires, chacun avec son ensemble de champs distinct, sa mÃ©thode de nomenclature et de stockage.
</li>
<li>Ce qui est appelÃ© : Internet TV, IPTV, [http://newtube.org/ NewTube], vlogging, vidblogging, vidlogging, vodcasting, etc.</li>
<li>Ce qui est appelÃ© : Podcasting, IPradio, etc.</li>
</ul>

Cette Ã©tude a pour but de produire un dÃ©marrage pour rÃ©soudre ce problÃ¨me.

== Contributeurs ==

Ces types ont contribuÃ© Ã des exemples du vrai-monde et Ã la recherche dans ce document et sont intÃ©ressÃ©s pour aider Ã trouver une solution.

* Christopher Allen
* Dougal Campbell
* Dr. Ernie
* Rohit Khare
* Ryan King
* Kevin Marks
* Lisa Rein
* Dan Glegg
* Chris Messina
* [http://changelog.ca/ Charles Iliya Krempeaux]

Si vous contribuez sur de nouveaux exemples du vrai monde ou dans la recherche, et souhaitez aider Ã trouver une solution, ajoutez votre nom.

= Exemples sur le Web aujourd'hui =

Ci-dessous une liste de modÃ¨les de paille fondÃ©s sur des exemples du vrai monde. (les liens vers de vÃ©ritables exemples ont Ã©tÃ© mis parce que beaucoup d'entre eux ont Ã©tÃ© trouvÃ©s sur des sites d'adultes, et il est admis que ce serait inappropriÃ© de les lister ici. -- [[User:Charles|Charles]])

=== Show Strawman #1 ===
Clip simple avec une image de prÃ©visualisation. Le clip est le show complet.
<nowiki>
<a href="clip.mpeg"><img src="preview.png" /></a>
</nowiki>

=== Show Strawman #2 ===
Clip simple avec une image de prÃ©visualisation. Le clip est le teaser du show coplet. Et il y a un lien que vous pouvez suivre pour payer le show complet.
<nowiki>
<a href="teaser.mpeg"><img src="preview.png" /></a>

<a href="http://exemple.com/go">Payez pour Regarder</a>
</nowiki>

=== Show Strawman #3 ===
Un show divisÃ© en plusieurs clips, chacun avec une image prÃ©visualisation.
Ensemble les clips forment le show.
<nowiki>
<a href="clip-1.mpg"><img src="preview-1.png" /></a>

<a href="clip-2.mpg"><img src="preview-2.png" /></a>

<a href="clip-3.mpg"><img src="preview-3.png" /></a>
</nowiki>

=== Show Strawman #4 ===
Un ensemble de teasers pour un show. Ensemble il ne forment pas la totalitÃ© du show. et ils peuvent ou ne peuvent pas se chevaucher dans le temps. Il y a aussi un lien "Pay to
View".
<nowiki>
<a href="clip-blue.mpg"><img src="preview-blue.png" /></a>

<a href="clip-red.mpg"><img src="preview-red.png" /></a>

<a href="clip-green.mpg"><img src="preview-green.png" /></a>

<a href="http://example.com/go">Pay to View</a>
</nowiki>

=== Show Strawman #5 ===
Un clip unique qui arrive en diffÃ©rents formats. (Pourrait Ãªtre un teaser, un clip, ou une Ã©mission complÃ¨te.)
<nowiki>
<img src="preview.png" />
<a href="clip.mpg">MPEG</a>
<a href="clip.ogm">Ogg</a>
<a href="clip.avi">AVI</a>
</nowiki>

=== Show Strawman #6 ===
Une image de prÃ©visualisation unique avec l'Ã©mission donnÃ©e dans deux mÃ©thodes diffÃ©rentes. La premiÃ¨re est l'Ã©mission divisÃ©e en une sÃ©rie de morceaux (qui la rend plus facile Ã tÃ©lÃ©charger). Et la seconde est la totalitÃ© de l'Ã©mission en un fichier.
<nowiki>
<img src="preview.png" />

<a href="part-1.mpg">[1]</a>
<a href="part-2.mpg">[2]</a>
<a href="part-3.mpg">[3]</a>

<a href="full.mpg">full</a>
</nowiki>

=== Show Strawman #7 ===
Un clip unique avec une image de prÃ©visualisation. Le titre de l'Ã©mission est donnÃ©e dans une image (et de ce fait le titre vÃ©ritable lisible par une machine est le ''alt attribute'' de l'image) et est liÃ© avec l'URL principale de l'Ã©mission. Il y a aussi un lien vers des Ã©pisodes plus anciens de l'Ã©mission.
<nowiki>
<a href="..."><img src="the-name-of-the-show-png" alt="The Name of the Show" /></a>

<a href="episode123-clip.mpeg"><img src="episode123-preview.png" /></a>

<a href="older-shows">older shows</a>
</nowiki>

=== Show Strawman #8 ===
Une sÃ©rie de clips avec des images de prÃ©visualisation. Le titre du show est donnÃ©e avec une image (et de ce fait le titre vÃ©ritable lisible par une machine est l'attribut alt de l'image) et est liÃ© Ã l'url principale du show. Il y a aussi des liens vers les Ã©pisodes plus anciens et nouveaux du show.
<nowiki>
<a href="..."><img src="the-name-of-the-show-png" alt="The Name of the Show" /></a>

<a href="episode123-clip.mpeg"><img src="episode123-preview.png" /></a>
<a href="episode122-clip.mpeg"><img src="episode122-preview.png" /></a>
<a href="episode121-clip.mpeg"><img src="episode121-preview.png" /></a>
<a href="episode120-clip.mpeg"><img src="episode120-preview.png" /></a>

<a href="newer-shows">[next]</a>
<a href="older-shows">[previous]</a>
</nowiki>

=== Show Strawman #9 ===
Une sÃ©rie d'images de prÃ©visualisation. Le titre du show est donnÃ© dans le texte. Un lien vers tous les fichiers de l'Ã©mission via un torrent. D'autres mÃ©tadonnÃ©es sont aussi gÃ©nÃ©ralement incluses, en texte clair ; quelques-unes sont montrÃ©es ici. Aussi, parfois la mÃ©tadonnÃ©e est placÃ©e dans la description.
<nowiki>
The Name of the Show

<img src="preview1.png" />
<img src="preview2.png" />

<a href="show.torrent">...</a>

Torrent Info Hash: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Description: blah blah blah .... here some URLs to previews...
blah blah blah .... this is 24 fps
blah blah blah

Content: tag1, tag2, tag3

Resolution: 320px x 240px

Run Time: 24mins 57secs

Size: 125.42 MB (131,509,108 bytes)

Type: Movie Clip

Published/Uploaded By: someone

<a href="...">Link to page with list of files in torrent</a>
<a href="...">Link to page with list of people on the torrent</a>
</nowiki>

= Standard Actuel / PrÃ©cÃ©dent =

== Encore de l'image ==

* [http://www.exif.org/Exif2-2.PDF EXIF]
* [http://www.tasi.ac.uk/2000/09/rdfmeta/ RDF pour images auto-dÃ©crites]
* [http://archive.dstc.edu.au/RDU/staff/jane-hunter/PNG/paper.html Un systÃ¨me de requÃªte et d'indexation pour les images en ligne basÃ© sur le format PNG et les mÃ©tadonnÃ©es embarquÃ©es]
* [http://www.w3.org/TR/photo-rdf/ DÃ©crire et retrouver des photos en utilisant RDF et HTTP]
* [http://www.pheed.com/pheed/ Pheed extension RSS pour synidcation photo]

== Formats de MÃ©tadonnÃ©e Audio ==

* [http://www.id3.org/ ID3v2]

* iTunes
** Album : String
** Artist : String
** Beats Per Minute : Number
** Bit Rate : Number
** Comment : Blob
** Composer : String
** Genre : String or Foreign ID
** Disc Number : Number
** Kind : Proprietary - could be implimented as MIME type
** My Rating : Number < 5 (actually an integer from the range 0-100. 1-5 "stars" implemented by incrementing by 20)
** Sample Rate : Number
** Size : Number
** Time : Number
** Track Number : Number
** Year : Number
**Additional metadata used internally by the application : Date Added (Timestamp), Date Modified (Timestamp), Equalizer (foreign ID), Play Count (Number), Grouping (Internal)
**Noteable absences : Tags, [[rel-license|License]], Copyright year. Also note common complaints about [http://www.everything2.com/index.pl?node_id=1707402 ID3 and classical music].

* [http://www.xspf.org/ XSPF] (see also [http://gonze.com/playlists/playlist-format-survey.html A survey of playlist formats] and [http://www.xspf.org/xspf-v0.html The XSPF Playlist Format, version 0])
** album
** creator
** duration
** info
** title
** trackNum

== Podcasts ==

* '''iTunes podcast:''' http://phobos.apple.com/static/podcast_specifications.pdf
(version HTML de la spec : [http://labs.commerce.net/~rohit/How%20To%20Publish%20a%20Podcast%20on%20iTunes%20Music%20Store.html local archive], [http://labs.commerce.net/~rohit/iTunesRSS.html updated version from Apple Chapter Tool Beta docs], [http://phobos.apple.com/static/iTunesRSS.html online copy at Apple])

iTunes v. 4.9 a Ã©tÃ© largement proclamÃ© comme une avance pour l'acceptation du podcasting par le plus grand nombre. NÃ©anmoins, alors que quelques avocats rÃ©sistent mÃªme au fragment d'un nom en marque dÃ©posÃ© pour le phÃ©nomÃ¨ne, l'utilisation de "itunes": dans l'espace-nom est l'une des nombreuses dÃ©cisions de design ans la spÃ©cification originale d'Apple devenu le principal objet du dÃ©bat. Alors qu'Apple a une tradition de travailler tranquillement sur des fonctionnalitÃ©s innovantes, ils se sont montrÃ©s ouverts aux inputs du public aprÃ¨s sa version initiale. Beaucoup [http://daringfireball.net/2005/07/podcast_pocket d'autres blogueurs] ont [http://usefulinc.com/edd/blog/contents/2005/06/28-rss-apple-itunes/read chroniquÃ©] [http://www.intertwingly.net/blog/2005/07/05/Insensitive-iTunes quelques-unes des rÃ©actions], tout comme quelques [http://tantek.com/log/2005/07.html#d10t0130 discussions en face Ã face].

Une liste de discussion pourrait bientÃ´t venir...

* '''Media RSS :''' http://search.yahoo.com/mrss

Media RSS est [http://www.ysearchblog.com/archives/000111.html depuis longtemps dans le tube], mais n'a pas eu l'avantage de l'adoption de iTunes. NÃ©anmoins, il a une ambition bien plus grande, y compris [http://www.ysearchblog.com/archives/000060.html la vidÃ©o]; et une [http://groups.yahoo.com/group/rss-media/ communautÃ© d'intÃ©rÃªt] bien plus grande.

=== Un Microformat Podcasting ? ===

Le meilleur point de dÃ©part pour comprendre ces deux propositions est [http://www.w3.org/2005/07/media-and-rss le tableau rÃ©sumÃ© du W3C dressÃ© par Karl Dubost].

Il existe (au moins) deux chemins Ã considÃ©rer pour 'porter' ces propositions dans les Microformats :
# '''Standalone.''' What is the most straightforward rendering of each proposal into XHTML? This keeps the interests of the developers of ''consuming'' applications foremost: how can the migration be made as painless as possible?
# '''Refactored.''' Given the existing core of Microformats, what is the minimal (!) necessary to add on to RelLicense, RelTag, hReview, and so forth? This favors (we'd hope) content ''publishing'' applications: how can the marginal migration costs of adding media be made as painless as possible.

Mapping the existing specs requires understanding the data definitions set forth in each specification, and finding the optimal equivalents (where available). The following is a partial summary of one possible mapping:

==== Tableau Comparatif ====

<table border="1" cellpadding="5" cellspacing="0" style="border:1px solid grey;">
<tr>
<th>Aspect</th>
<th>Atom</th>
<th>iTunes RSS</th>
<th>Media RSS</th>
<th>M3U</td>
<th>RSS 2.0</th>
<th>Microformat?</th>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Authorship</td>
<td><ul><li><atom:author></li><li><atom:contributor></li></ul></td>
<td><ul><li><itunes:author></li><li><itunes:owner></li><li><itunes:name></li><li><itunes:email></li></ul></td>
<td><media:credit></td>
<td>nothing</td>
<td><copyright> <author> <source></td>
<td style="background-color:#eeeeee;color:black;"><ul><li><cite></li><li>[[hcard|hCard]]</li><li>[[rel-author]]</li><li>[[rev-author]]</li><li><address></li></ul>need a way of specifying the role of the author or contributor.</td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Categorization</td>
<td><atom:category></td>
<td><itunes:category> <itunes:keywords></td>
<td><media:category></td>
<td>nothing</td>
<td><category></td>
<td style="background-color:#eeeeee;color:black;">[[rel-tag]] - requires a way to do sub categories?</td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Description</td>
<td><atom:summary> <atom:content></td>
<td><itunes:subtitle> <itunes:summary></td>
<td><media:text></td>
<td>nothing</td>
<td><description></td>
<td style="background-color:#eeeeee;color:black;">XHTML (e.g. <nowiki><blockquote></nowiki> )</td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Licensing</td>
<td><atom:copyright> <atom:rights></td>
<td><itunes:block> <copyright> <link></td>
<td>Not explicitly mentioned</td>
<td>nothing</td>
<td><ttl></td>
<td style="background-color:#eeeeee;color:black;">[[rel-license]]</td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Metadata</td>
<td></td>
<td><itunes:duration> <itunes:image></td>
<td><media:thumbnail> <media:hash> <pre><media:content
url="http://www.example.com/movie.mov"
fileSize="12216320"
type="video/quicktime"
isDefault="true"
expression="full"
bitrate="128"
framerate="25"
duration="185"
height="200"
width="300"
/></pre></td>
<td>nothing</td>
<td></td>
<td style="background-color:#eeeeee;color:black;">needs a new microformat e.g., <dl><dt>proposal for duration</dt><dd><pre><abbr class="duration" title="00:27:35">
27 minutes, 35 seconds
</abbr></pre>
-- [[User:jkinberg|jkinberg]] 11:51, 19 Sept 2005 (PDT))
</dd></dl></td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Preview</td>
<td>nothing</td>
<td>nothing</td>
<td>For Video Media: <media:thumbnail> For Audio Media: nothing</td>
<td>nothing</td>
<td>nothing</td>
<td style="background-color:#eeeeee;color:black;">need a new microformat for this
<dl><dt>proposal for video preview</dt><dd><pre><img class="preview" src="..." /></pre>
-- [[User:Charles|Charles]]
</dd></dl></td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Rating</td>
<td>nothing</td>
<td><itunes:explicit></td>
<td><s><media:adult></s> <media:rating></td>
<td>nothing</td>
<td><rating></td>
<td style="background-color:#eeeeee;color:black;">[[rel-tag]]</td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Title</td>
<td><atom:title> <atom:subtitle></td>
<td><itunes:subtitle> <title></td>
<td><media:title> <title></td>
<td>nothing</td>
<td><title></td>
<td style="background-color:#eeeeee;color:black;">
<ul>
<li><h1>...</h1></li>
<li><h2>...<h2></li>
<li><h3>...</h3></li>
<li><h4>...</h4></li>
<li><h5>...</h5></li>
<li><h6>...</h6></li>
<li>title="..."</li>
<li>Microformats with class="title"</li>
</ul>
</td>
</tr>
<tr>
<td colspan="7"> </td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Show Concept</td>
<td><ul><li><atom:feed></li><li><link rel="self" href="..." /></li></ul></td>
<td><ul><li><channel></li><li><link></li></ul></td>
<td><ul><li><channel></li><li><link></li></ul></td>
<td>A M3U file.</td>
<td><ul><li><channel></li><li><link></li></ul></td>
<td style="background-color:#eeeeee;color:black;">need a new microformat</td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Episode Concept</td>
<td><ul><li><atom:entry></li><li><link rel="alternate" href="..." /></li></ul></td>
<td><ul><li><item></li><li><link></li></ul></td>
<td><ul><li><item></li><li><link></li></ul></td>
<td>A single URL line.</td>
<td><ul><li><item></li><li><link></li></ul></td>
<td style="background-color:#eeeeee;color:black;">need a new microformat</td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Media Concept</td>
<td><ul><li><atom:link rel="enclosure" href="..." /></li><li>also... dependent on type of data embedded in or referenced from <atom:content></li></ul></td>
<td><enclosure></td>
<td><media:content></td>
<td>Simply the inclusion of a URL on a line.</td>
<td><enclosure></td>
<td style="background-color:#eeeeee;color:black;"><img> <a href=""> <object> <embed> </td>
</tr>
</table>

== VidÃ©o ==
* [http://www.exif.org/Exif2-2.PDF EXIF] - (Yes, the spec deals with video taken by still cameras. -- RyanKing)
* [http://www.chiariglione.org/mpeg/standards/mpeg-7/mpeg-7.htm MPEG-7] - MPEG-7, formally named "Multimedia Content Description Interface", is a standard for describing the multimedia content data that supports some degree of interpretation of the information meaning, which can be passed onto, or accessed by, a device or a computer code. (Very powerful, but you have to pay for documentation -- [[User:ChristopherA|ChristopherA]] 01:53, 29 Jun 2005 (PDT))
* [http://www.w3.org/AudioVideo/ SMIL] - Synchronized Multimedia Integration Language (SMIL, pronounced "smile") enables simple authoring of interactive audiovisual presentations. (Not exactly video, but has a lot of useful video-related features in it. -- [[User:ChristopherA|ChristopherA]] 01:55, 29 Jun 2005 (PDT))
* [[video-metadata-model| Video Metadata Model - un point de dÃ©part]]

== Interactive ==
* [http://www.w3.org/Graphics/SVG/ SVG]
* [http://www.w3.org/AudioVideo/ SMIL]
* QTVR ?

== MÃ©dia Hors ligne ==
* [http://xspf.org XSPF] (media may be either offline or online)

=== Publications ImprimÃ©es (livres/magazines) ===
* [http://amazon.com/ Amazon]

=== Films ===
* [http://imdb.com/ IMDB]
* [http://amazon.com/ Amazon]

=== Musique ===
* [http://freedb.org/ FreeDB]
* [http://musicbrainz.org/ MusicBrainz]
* [http://amazon.com/ Amazon]

== Formats Conteneurs ==
The purpose of container formats is to allow the muxing of multiple codecs into a single file or stream. For example, if you want audio, video, and text (subtitles) combined into a single stream.

The purpose of the muxing is for synchronization and so that you can stream the file and view it without having to jump around -- seek -- in the file.

Container formats include:
* AVI
* MPEG
* Ogg
* QuickTime

=== Tableau de Comparaison de Format Conteneurs ===

<table border="1" cellpadding="5" cellspacing="0" style="border:1px solid grey;">
<tr>
<th>Aspect</th>
<th>AVI</th>
<th>MPEG</th>
<th>Ogg</td>
<th>QuickTime</th>
<th>Microformat?</th>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Allows Audio</td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
<td style="background-color:#eeeeee;color:black;"></td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Allows Video</td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
<td style="background-color:#eeeeee;color:black;"></td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Allows Text</td>
<td></td>
<td></td>
<td>Yes</td>
<td>Yes</td>
<td style="background-color:#eeeeee;color:black;"></td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Error Detection</td>
<td></td>
<td></td>
<td>Yes</td>
<td></td>
<td style="background-color:#eeeeee;color:black;"></td>
</tr>
</table>

=== Notes pour les Microformats ===
One of the problems with container formats is that it is often difficult and sometimes impossible to know the disposition of what they contain ahead of time (without reading the file).

For example, Ogg files use the MIME type application/ogg and generally use the extension .ogg. With only these 2 pieces of information, you cannot tell whether such an Ogg file contains video data or not.

There is room for a microformat to help with this. Perhaps something like:
<div style="font-family:monospace;white-space:pre;padding:1.5em;background-color:black;color:white;"><a class="moving-image" type="application/ogg" href="my.ogg">...</a></div>
Although, this can be done in other ways too. For example, using [http://changelog.ca/log/2005/08/21/rss-disposition-hinting-proposal disposition hinting] one could do something like:
<div style="font-family:monospace;white-space:pre;padding:1.5em;background-color:black;color:white;"><a type="application/ogg;disposition-type:moving-image" href="my.ogg">...</a></div>

Anothing thing for any Microformat to consider is that it may be the case that the data files that are muxed in the container format may also be offered in non-muxed forms. This is important when alternatives are offered.

== Formats Audio ==

Audio formats include:
* AAC
* MP3
* PCM WAV
* Speex
* Vorbis
* WMA

=== Tableau de Comparaison de Formats Audio ===

<table border="1" cellpadding="5" cellspacing="0" style="border:1px solid grey;">
<tr>
<th>Aspect</th>
<th>AAC</th>
<th>MP3</th>
<th>PCM WAV</td>
<th>Speex</th>
<th>Vorbis</th>
<th>WMA</th>
<th>Microformat?</th>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Lossless</td>
<td>No</td>
<td>No</td>
<td>Yes</td>
<td>Yes</td>
<td>No</td>
<td></td>
<td style="background-color:#eeeeee;color:black;"></td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Lossy</td>
<td>Yes</td>
<td>Yes</td>
<td>No</td>
<td>No</td>
<td>Yes</td>
<td>Yes</td>
<td style="background-color:#eeeeee;color:black;"></td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Streamable</td>
<td>Yes</td>
<td>Yes</td>
<td></td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
<td style="background-color:#eeeeee;color:black;"></td>
</tr>
</table>

=== Notes pour les Microformats ===
* Knowing whether audio data is streamable or not can affect pre-fetching. And can be a metric used when alternatives of the same file is given.
* Having audio data marked as lossy or lossless can be useful when alternatives of the same file is made.

== Formats de Lecture ==
Playing formats include:
* ASX
* Atom
* Atom+SMIL
* Atomic RSS
* Atomic RSS+SMIL
* Extended M3U
* HTML+Time
* iTunes RSS
* KPL
* M3U
* MAGMA
* Media RSS
* PLS
* RAM
* RSS 2.0
* SMIL
* WAX
* WVX

=== Tableau Comparatif Format de Lecture ===
<table border="1" cellpadding="5" cellspacing="0" style="border:1px solid grey;">
<tr>
<th>Aspect</th>
<th>ASX</th>
<th>Atom</th>
<th>Atom+SMIL</th>
<th>Atomic RSS</th>
<th>Atomic RSS+SMIL</th>
<th>Extended M3U</th>
<th>HTML+Time</th>
<th>iTunes RSS</th>
<th>Media RSS</th>
<th>M3U</td>
<th>RSS 2.0</th>
<th>Microformat?</th>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Alternatives Playing</td>
<td></td>
<td>nothing</td>
<td></td>
<td></td>
<td><smil:switch></td>
<td></td>
<td></td>
<td>nothing</td>
<td><media:group></td>
<td>nothing</td>
<td>nothing</td>
<td style="background-color:#eeeeee;color:black;">need a new microformat</td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Parallel Playing</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td style="background-color:#eeeeee;color:black;">need a new microformat</td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Sequence Playing</td>
<td></td>
<td>if you consider the Atom file a show, then nothing. if you consider the Atom file an episode, then the list of <atom:entry>'s provides a sequence.</td>
<td></td>
<td></td>
<td><smil:seq></td>
<td></td>
<td></td>
<td>if you consider the RSS file a show, then nothing. if you consider the RSS file an episode, then the list of <item>'s provides a sequence.</td>
<td>if you consider the RSS file a show, then nothing. if you consider the RSS file an episode, then the list of <item>'s provides a sequence.</td>
<td>if you consider the M3U file a show, then nothing. if you consider the M3U file an episode, then the URL lines provide a sequence.</td>
<td>if you consider the RSS file a show, then nothing. if you consider the RSS file an episode, then the list of <item>'s provides a sequence.</td>
<td style="background-color:#eeeeee;color:black;">need a new microformat</td>
</tr>
<tr>
<td style="background-color:darkorange;color:black;font-weight:bold;">Pre-Fetching</td>
<td></td>
<td><link rel="enclosure" href="..." /></td>
<td><ul><li style="white-space:pre;"><link rel="enclosure" href="..." /></li><li><smil:prefetch></li></ul></td>
<td><link rel="enclosure" href="..." /></td>
<td></td>
<td></td>
<td></td>
<td><enclosure></td>
<td><media:content></td>
<td>The M3U format is just list of URL's, with each URL on its own line. Pre-Fetching would be accomplished by just added a URL to the list.</td>
<td><enclosure></td>
<td style="background-color:#eeeeee;color:black;">[[rel-enclosure]]</td>
</tr>
</table>

== Formats Images Graphiques ==
Raster graphic formats include:
* GIF
* PNG
* JPEG

== Formats Vectoriels Graphiques ==
Vector graphic formats include:
* SVG

= Formats & Protocoles =

== AAC ==
AAC (Advanced Audio Coding) is a lossy audio format. Like MP3, AAC is part of the MPEG standard. Since April 2003, AAC has become an integral part of Apple's iPod and iTunes products. This association between AAC and Apple has become so strong among some that AAC is also sometimes call Apple Audio Codec.

RÃ©fÃ©rences:
* http://en.wikipedia.org/wiki/Advanced_Audio_Coding

== ASF ==
ASF is an Audio/Video format. ASF files that contain only audio data are typically called WMA files.

References:
* http://en.wikipedia.org/wiki/Advanced_Streaming_Format

== Atom ==
Atom is a XML-based syndication format that was developed by certain members of the RSS community.

RÃ©fÃ©rences :
* http://atomenabled.org/developers/syndication/
* [http://www.faqs.org/rfcs/rfc3339.html RFC 3339]

== Atom+SMIL ==
Atom+SMIL is Atom with SMIL used in the <atom:content>.

(This was originally used by [http://changelog.ca/ Charles Iliya Krempeaux] for "Internet TV". Also see Atomic RSS+SMIL)

== Atomic RSS ==
Atomic RSS is a syndication format that is RSS with Atom used as an extension module.

References:
* http://www.tbray.org/ongoing/When/200x/2005/07/27/Atomic-RSS

== Atomic RSS+SMIL ==
Atomic RSS+SMIL is Atomic RSS with SMIL use in the <atom:content>.

(This was originally used by [http://changelog.ca/ Charles Iliya Krempeaux] for "Internet TV".)

== AVI ==
AVI is a container format for Audio/Video formats.

References:
* http://en.wikipedia.org/wiki/AVI

== B4S ==
B4S is a playlist format.

References:
* http://gonze.com/playlists/playlist-format-survey.html#B4S

== BitTorrent ==
BitTorrent is a P2P protocol.

References:
* http://www.bittorrent.com/protocol.html
* http://en.wikipedia.org/wiki/Bittorrent
* http://wiki.theory.org/BitTorrentFAQ

== Creative Commons RDF ==

References:
* http://gonze.com/playlists/playlist-format-survey.html#Creative

== DAAP ==

References:
* http://gonze.com/playlists/playlist-format-survey.html#DAAP

== Extended M3U ==

References:
* http://gonze.com/playlists/playlist-format-survey.html#M3U
* http://hanna.pyxidis.org/tech/m3u.html
* http://en.wikipedia.org/wiki/M3U

== FLAC ==
Free Lossless Audio Codec (FLAC)
* http://flac.sourceforge.net/

== GIF ==
GIF is a raster graphics format and a movie format.

== HTML+Time ==

References:
* http://www.w3.org/TR/NOTE-HTMLplusTIME
* http://gonze.com/playlists/playlist-format-survey.html#HTML

== HTTP ==

References:
* http://www.w3.org/Protocols/

== iTunes Library ==

References:
* http://gonze.com/playlists/playlist-format-survey.html#iTunes

== iTunes RSS ==

References:
* http://www.apple.com/itunes/podcasts/techspecs.html

== JPEG ==
JPEG is a raster graphics format.

== Kapsule ==

References:
* http://gonze.com/playlists/playlist-format-survey.html#Kapsule

== KPL ==
KPL is a playlist format.

References:
* http://gonze.com/playlists/playlist-format-survey.html#KPL

== M3U ==
M3U is a playlist format.

References:
* http://gonze.com/playlists/playlist-format-survey.html#M3U

== MAGMA ==

References:
* http://gonze.com/playlists/playlist-format-survey.html#MAGMA

== Media RSS ==
Media RSS is a syndication format that is RSS with the addition of the Media RSS Module.

== MKV/MKA ==
Matroska MKV/MKA are video and audio containers, respectively.
* http://www.matroska.org/

== MNG ==
MNG is a Video format.

== MP3 ==
MP3 is an Audio format.

== MPEG ==
ASF is an Audio/Video format.

== MusicBrainz ==

References:
* [http://www.MusicBrainz.org MusicBrainz.org]
* [http://wiki.musicbrainz.org MusicBrainz wiki]
* http://gonze.com/playlists/playlist-format-survey.html#musicbrainz

== Ogg ==
Ogg is a media container format.

References:
* http://xiph.org/ogg/
* http://en.wikipedia.org/wiki/Ogg
* [http://xiph.org/ogg/doc/rfc3533.txt RFC 3533] - The Ogg Encapsulation Format Version 0
* [http://xiph.org/ogg/doc/rfc3534.txt RFC 3534] - The application/ogg Media Type

== PLS ==
PLS is a playlist format.

References:
* http://gonze.com/playlists/playlist-format-survey.html#PLS
* http://en.wikipedia.org/wiki/PLS_(file_format)

== RAM ==
RAM is a playlist format.

References:
* http://gonze.com/playlists/playlist-format-survey.html#RAM

== RSS 2.0 ==
RSS 2.0 is the defacto standard syndication format.

References:
* http://developer.mozilla.org/en/docs/RSS

== RTSP ==

References:
* http://www.rtsp.org/
* [http://www.ietf.org/rfc/rfc1889.txt RFC 1889]
* http://en.wikipedia.org/wiki/Real_Time_Streaming_Protocol

== SMIL ==

References:
* http://www.w3.org/AudioVideo/

== Speex ==

References:
* http://www.speex.org/

== SVG ==
SVG is a vector graphics format.

== Theora ==
Theora is an Audio/Video format/

References:
* http://www.theora.org/
* http://en.wikipedia.org/wiki/Theora

== Vorbis ==
Vorbis is an Audio format.

References:
* http://xiph.org/vorbis/
* http://vorbis.com/
* http://en.wikipedia.org/wiki/Vorbis

== WAX ==
WAX is an SGML-based playlist for that looks exactly like ASX and WVX, except that it can only reference to ASF or WMA, but NOT to WMV files.

References:
* http://gonze.com/playlists/playlist-format-survey.html#WAX

== WMA ==
WMA is an Audio format.

References:
* http://en.wikipedia.org/wiki/Windows_Media_Audio

== WMV ==
WMV is an Audio/Video format.

References:
* http://en.wikipedia.org/wiki/Windows_Media_Video

== WVX ==
WVX is an SGML-based playlist format that looks exactly like ASX and WAX, except that it can reference ASF, WMA, and WMV media files.

References:
* http://gonze.com/playlists/playlist-format-survey.html#WVX

= Commentaires =

* Voir le document sÃ©parÃ© sur [[media-metadata-issues]]
** Ã traduire sur [[media-metadata-issues-fr]] -- [[Christophe Ducamp]]

= Voir aussi =

* [[video-metadata-models]]
** Ã traduire vers [[video-metadata-models-fr]]

Microformats Wiki - User contributions [en]

media-metadata-examples-fr