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From: Juliusz Chroboczek <jch@irif.fr>
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Subject: [Galene] Re: Filtering outgoing video
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> The problem is that the context isn't created before captureStream.

Grr.  I wonder what happens if I destroy and recreate the context.

> Have you considered using WebGL and shaders for filters instead?

Anything you can do in Javascript in less than 30ms, you can put in the
filter.  Before you go wild, wait until I implement pacing (dropping
frames if you go over 30ms -- right now, you might hang the UI.)

-- Juliusz