[theora] [OT-ish] WebM/Ogg VP8 streaming

[Gregory Maxwell]

On Sat, May 22, 2010 at 10:14 PM, Silvia Pfeiffer
<silviapfeiffer1 at gmail.com> wrote:
> On Sun, May 23, 2010 at 10:54 AM, Gregory Maxwell <gmaxwell at gmail.com> wrote:
>> On Sat, May 22, 2010 at 3:07 PM, Basil Mohamed Gohar
>> <abu_hurayrah at hidayahonline.org> wrote:
>>> On 05/22/2010 03:02 PM, Philip Heron wrote:
>>>> On 22/05/10 10:27, Chris Double wrote:
>>>>> There are no plans to support VP8+Vorbis+Ogg in Firefox at this stage.
>>>>> Our Ogg support for chained streams isn't very good at the moment so
>>>>> existing Icecast support in Firefox is not as good as I'd like it to
>>>>> be. There are bugs raised to to address that however.
>>>>>
>>>> Can the WebM format be used to stream live content? I see some
>>>> discussion on the icecast-devel list today about adding support so I
>>>> guess it can.
>>> From what I have heard, yes it can.
>> This would be a neat trick, the webm spec seems to require that a cues
>> element exists. Is this correct?
>>
>> If so I don't see how you could live stream to a conforming webm client.
> IIUC, flumotion already streams WebM in Matroska:
> http://zaheer.merali.org/articles/2010/05/21/webm-and-vp8-streaming-live-from-flumotion/
> So, it seems possible.


Yes, this was pointed out in the thread, but I'm pretty confident that
it is a spec violation currently.  The webm spec requires that
encoders provide an index, which you obviously can't do in a live
stream.