Add copying notice in source files.

headset/headset.c

@@ -1,3 +1,23 @@
+/*
+   headset.c - simple 2D binaural spacializer as LV2 plugin.
+   Copyright (C) 2022 Benoît Rouits <brouits@free.fr>.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public Licence as
+   published by the Free Software Foundation; either version 2 of the
+   Licence, or (at your option) any later version.
+
+   This library 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
+   along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307, USA.
+*/
+
 #include <math.h>
 #include <stdlib.h>
 

headset/headset_ui.c

@@ -1,3 +1,23 @@
+/*
+   headset_ui.c - simple 2D binaural spacializer as LV2 GUI.
+   Copyright (C) 2022 Benoît Rouits <brouits@free.fr>.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public Licence as
+   published by the Free Software Foundation; either version 2 of the
+   Licence, or (at your option) any later version.
+
+   This library 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
+   along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307, USA.
+*/
+
 #include <stdlib.h>
 #include <math.h>
 #include <string.h>

scatter/scatter.c

@@ -1,3 +1,27 @@
+/*
+   scatter.c - simple granular scatter as LV2 plugin.
+   Copyright (C) 2022 Benoît Rouits <brouits@free.fr>.
+
+   This code is mostly a port of grain.cpp from
+   Computer Music Toolkit - a library of LADSPA plugins. Copyright (C)
+   2000-2002 Richard W.E. Furse.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public Licence as
+   published by the Free Software Foundation; either version 2 of the
+   Licence, or (at your option) any later version.
+
+   This library 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
+   along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307, USA.
+*/
+
 #include <math.h>
 #include <stdlib.h>
 #include <stdio.h>