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+# Readme
+
+av is a collection of tools and packages written in Go for audio-video processing.
+
+# Description
+
+* revid: a tool for re-muxing and re-directing video streams.
+* RingBuffer: a package that implements a ring buffer with concurrency control.
+
+# License
+
+Copyright (C) 2017 the Australian Ocean Lab (AusOcean).
+
+It is free software: you can redistribute it and/or modify them
+under the terms of the GNU General Public License as published by the
+Free Software Foundation, either version 3 of the License, or (at your
+option) any later version.
+
+It is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+or more details.
+
+You should have received a copy of the GNU General Public License
+along with revid in gpl.txt.  If not, see [GNU licenses](http://www.gnu.org/licenses/).