[theora] No quality advantage with two-pass?

[Jason Self]

On Aug 28, 2009, at 7:22 PM, Remco <remco47 at gmail.com> wrote:

> But isn't it so that you can reserve bits for difficult parts of
> a video, which improves the perceived quality?

ffmpeg2theora already has a quality-based encoding mode that does  
exactly that: Use more bits when they're needed and less when they're  
not. In fact, that is the program's default unless you specify  
something else.

> It may be true that
> Theora does quite alright without two passes, but it seems like a
> no-brainer to me that two passes will always be better.

Not necessarily.