[whatwg] JSON Playlist Format

Zachary Ozer zach at longtailvideo.com
Thu May 5 14:47:23 PDT 2011

The use case I'm thinking of is a blogging service that allows a
publisher to upload static files, but they cannot host executable code
like a proxy. They could include a <script> tag as part of their
content and use a third party JSONP
(http://en.wikipedia.org/wiki/JSONP) proxy to load their playlist.

Additionally, in older browsers (IE 6 & 7), I believe that
Access-Control-Allow-Origin headers aren't respected, so you'd never
be able to load XML cross domain, but you can load <script> tags.


Zachary Ozer
Developer, LongTail Video

w: longtailvideo.com • e: zach at longtailvideo.com • p: 212.244.0140 •
f: 212.656.1335
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On Thu, May 5, 2011 at 12:08 PM, Nils Dagsson Moskopp
<nils at dieweltistgarnichtso.net> wrote:
> Zachary Ozer <zach at longtailvideo.com> schrieb am Thu, 5 May 2011
> 11:17:42 -0400:
>> We've been getting some traffic on our forums from users wondering
>> about JSON playlist formats. Specifically, because we aren't
>> supporting XML playlists in our player in HTML5 mode (setting the
>> Access-Control-Allow-Origin headers would be impossible for most of
>> our users), they're looking for a JavaScript-friendly way to
>> encapsulate their playlists.
> Which would also need CORS measures, or am I mistaken here?
>> A very cursory search turned up JSPF
>> (http://wiki.xiph.org/JSPF_Draft), but it appears to be in draft. Are
>> y'all aware of any other formats, either in draft or that have been
>> released? If no, any idea why no one's done it already?
> Probably because fallback to a proxy is way easier.
> Anything blocking the use of XSPF + pass-through proxies?
> Cheers,
> --
> Nils Dagsson Moskopp // erlehmann
> <http://dieweltistgarnichtso.net>

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