[ogg-dev] Screencasting using Ogg

[Timothy B. Terriberry]

ogg.k.ogg.k at googlemail.com wrote:
> Re-encoding a Theora video will, for a given output bitrate, be worse than if
> you had encoded it at that bitrate in the first place. Theora does not have a
> lossless mode, which would allow you to save first as lossless, then reencode
> without losing fidelity.

Dirac does. I don't know if it's currently fast enough to encode in real
time at modern desktop resolutions, but then libtheora isn't really,
either. I'm not sure which would be easier to adapt to that purpose.