From time to time I have to google for this, now I am making a post so I know where I can find 
This converts the complete avi into mp3:
1 | ffmpeg -i movieSample.avi -ab 256k -vn autioSample.mp3 |
This extracts from 00:21:24 for 40s and converts avi into mp3:
1 | ffmpeg -ss 00:21:24 -t 00:00:40 -i movieSample.avi -ab 256k -vn autioSample.mp3 |
The Simple Logging Facade for Java or (SLF4J) [1] serves as a simple facade or abstraction for various logging frameworks, e.g. java.util.logging, log4j and logback, allowing the end user to plug in the desired logging framework at deployment time.
SLF4J source code and binaries are distributed under the MIT license.
jcouchdb [1] is a java5 couchdb driver using the svenson JSON library.
It offers features to support the full range from totally dynamic parsing to parsing into concrete java POJOs, including a mix in between.
jcouchdb is in the early stages of development but there’s a test suite proving that it does at least most of the couchdb operations.
Jcouchdb is released under BSD license.