Hi all,
I am working on video recording container stuff.
Right now we have the vp8/vp9 video encoder and opus audio encoder, 
But the opus in WebM 2.0 spec seems have not defined well already.
Although there is a draft spec here: 
  http://wiki.xiph.org/MatroskaOpus

The document says it's NOT RECOMMENDED to use this spec and there are several 
problems need to clarify.
Also I think there is no player can playback the WebM 2.0 already.
If we use the WebM 1.0, we may need to implement vorbis and mux the vp8+vobris 
in WebM 1.0.
The better thing is WebM 1.0 has supported in Firefox and chrome browser.
At this moment to meet Firefox 28 schedule, should we record in WebM 2.0 
directly or record in the WebM 1.0 format first then move to WebM 2.0 if spec 
can be implemented.
-------------------------------------
-rlin
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