Added license.

revid/audio_linux.go

@@ -1,3 +1,21 @@
+/*
+LICENSE
+  Copyright (C) 2019 the Australian Ocean Lab (AusOcean)
+
+  This 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
+  for more details.
+
+  You should have received a copy of the GNU General Public License
+  in gpl.txt.  If not, see http://www.gnu.org/licenses.
+*/
+
 package revid
 
 import (

revid/audio_windows.go

@@ -1,3 +1,21 @@
+/*
+LICENSE
+  Copyright (C) 2019 the Australian Ocean Lab (AusOcean)
+
+  This 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
+  for more details.
+
+  You should have received a copy of the GNU General Public License
+  in gpl.txt.  If not, see http://www.gnu.org/licenses.
+*/
+
 // startAudioDevice is used to start capturing audio from an audio device
 // TODO: Implement on Windows.
 package revid