The Ogg for Java library is a (from scratch) Java implementation of the Ogg protocol, compatible with Java 1.1 or higher.
The Ogg protocol itself is a media stream container, which can hold any type of media (for example a video stream format, audio stream format). It is also capable of multiplexing these streams (it can hold both an audio and video stream at the same time, making it possible to play back audio and video simultaniously), and also to chain (concatenate) streams. A main advantage is, that it is freely available (as a protocol), and to this date it is also patent-free.
NetMind's implementation follows the idea of free software, and is licensed under the LGPL, which basically means, You can use the software, incorporate it in commercial software unmodified. Or you can modify it and use parts of it as long as You release it back to the world under the same license.
Please note, that the Ogg protocol itself is NOT an audio or video codec, so it cannot compress video or audio data, it is only a container. If you are searching for the latter, you might want to visit Xiph.org which hosts/sponsors/advertises many open mulimedia related projects, such as Theora (an open video codec), or Vorbis (an open audio codec).
The aim of this project is to produce an easy-to-use interface to the Ogg protocol in the Java language, hiding as much internal mechanisms as possible, preserving all features on the interface. This may or may not be the philosophy you are searching for. If not, you may want to check out JOrbis which is also an implementation of the Ogg protocol (and more).
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