[annodex-dev] sequence description list question

[Michael Dale]

Hello, I am here with some kaltura folks and we are working on ideas for 
generalizing their sequence description xml  that represents kaltura 
video mixes. (a sample video: 
http://www.kaltura.com/devwiki/index.php/Hurricane_Katrina ) The idea is 
to generalize the xml so that a firefox/svg/html5/ogg/theora based 
presentation system could be built for to support open video sequencing 
on non-flash platforms...

We have been looking at open sequence description formats and it seems 
xspf could be extended to fit our needs. By using the extension tag we 
can embed most the necessary xml needed for filters, transitions, 
effects etc.

If xspf allowed for multiple tracklists categorized by 
audio/video/overlays (text, images, animations whatever) it should be 
able to represent most everything with graceful degradation for video 
data only players. 

Additionally the location tag could be a ROE xml file so that clients 
could negotiate the media type/quality/language of the given media 
resource.

quick example:

<playlist version="1" xmlns="http://xspf.org/ns/0/">
  <trackList type="video" id="videotrack1">
    <track>
        <location>my_ROE_video_clip_resource_description.xml</location>
        <extension xlns:kal="http://kaltrua.com/sdl/0/">
           <some custom kaltura properties; /filters/effects/transitions 
data/>
        </extension>
    </track>
    ...
  </trackList>
  <trackList type="audio|overlays|effects" id="track2">
    ...
  </trackList>
</playlist>


we are interested in hearing if people have any comments/ideas etc.

thanks,
--michael