The 1.1 release features a completely rewritten encoder, offering better performance and compression, and making more complete use of the format's feature set. Files produced by both encoders can be decoded by either release.
- Support for two-pass encoding
- Rate control fixes to smooth quality
- New encoder fDCT does better on smooth gradients
- Live-broadcast improvements
- Аdaptive quantiazation
download sources (http://downloads.xiph.org/releases/theora/libtheora-1.1.0.tar.gz)