diff --git a/libavfilter/vf_idet.h b/libavfilter/vf_idet.h
index 3820e94e18..05506901f2 100644
--- a/libavfilter/vf_idet.h
+++ b/libavfilter/vf_idet.h
@@ -2,17 +2,17 @@
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
+ * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg 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.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with FFmpeg; if not, write to the Free Software
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
diff --git a/libavfilter/x86/vf_idet.asm b/libavfilter/x86/vf_idet.asm
index fb29804a0c..35f0e07352 100644
--- a/libavfilter/x86/vf_idet.asm
+++ b/libavfilter/x86/vf_idet.asm
@@ -1,22 +1,25 @@
-; *****************************************************************************
-; * x86-optimized functions for idet filter
-; *
-; * This file is part of FFmpeg.
-; *
-; * FFmpeg is free software; you can redistribute it and/or modify
-; * it under the terms of the GNU General Public License as published by
-; * the Free Software Foundation; either version 2 of the License, or
-; * (at your option) any later version.
-; *
-; * FFmpeg 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 FFmpeg; if not, write to the Free Software Foundation, Inc.,
-; * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-; ******************************************************************************
+;*****************************************************************************
+;* x86-optimized functions for idet filter
+;*
+;* Copyright (C) 2014 Pascal Massimino (pascal.massimino@gmail.com)
+;* Copyright (c) 2014 Neil Birkbeck (birkbeck@google.com)
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg 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
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
 
 %include "libavutil/x86/x86util.asm"
 
diff --git a/libavfilter/x86/vf_idet_init.c b/libavfilter/x86/vf_idet_init.c
index 22034371ea..fb9ad832b0 100644
--- a/libavfilter/x86/vf_idet_init.c
+++ b/libavfilter/x86/vf_idet_init.c
@@ -2,17 +2,17 @@
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
+ * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg 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.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with FFmpeg; if not, write to the Free Software
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */