[foms] Proposal: adaptive streaming using open codecs

Christopher Blizzard blizzard at mozilla.com
Mon Nov 1 15:22:55 PDT 2010

On 10/27/2010 9:13 AM, Mark Watson wrote:
> The other thing that affects rate change heuristics is how you define 
> the data rate of each version of the content. It's not straightforward 
> for VBR content. What might be interesting would be for the API to 
> allow the player to report for each version of the content a data rate 
> sufficient to play smoothly for the next X minutes, for some X 
> specified by the app. A simple implementation always reports the same 
> pre-calculated value from the manifest (some kind of max over the 
> content), but you could do something more advanced in future.

In your experience how much of your content is VBR and how much of it is 
CBR?  Do different providers provide different source formats?  Your 
points here are good and frankly I've always thought that for TCP that 
VBR is a scary proposition.


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