[whatwg] on codecs in a 'video' tag.

[Henri Sivonen]

On Apr 2, 2007, at 23:33, Dave Singer wrote:

> You miss the point.  MPEG defines levels exactly so that bitstreams  
> can say "you need to be level X to be able to play this" and  
> players can implement "up to level X" and interoperability is well- 
> defined and assured.  Levels *improve* the interoperability, not  
> make it worse.  Without formal level definitions, you never know  
> for sure what you can 'get away with' in your encodings if you want  
> it to play on a set of devices.

The flipside is that even if you've got the latest and greatest Mac  
Pro, if the content oversteps QuickTime's profile support, the video  
won't play.

-- 
Henri Sivonen
hsivonen at iki.fi
http://hsivonen.iki.fi/