diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 9e3ba1435903b26141282ad6ec432dcb6be14d37..c3067b85a6bd738bd79fe0022306a3d2837629c5 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -1,6 +1,6 @@
 /*
  * filter registration
- * copyright (c) 2008 Vitor Sessak
+ * Copyright (c) 2008 Vitor Sessak
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index 6146a3a06af827686c5f620ac4cf507eda829a58..db254d655071e515f6b689ebe684f3fd4afb587b 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -1,6 +1,6 @@
 /*
  * filter layer
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 0de6c39c931351ed500da1f7d0016a097e8cf174..c5a52e8ce653bebc6d3296d782f5e9cd66d970aa 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -1,6 +1,6 @@
 /*
  * filter layer
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index b138e693fe14ce5720971455fe9e8d7523989fbe..97dd120d89c384c45d4ff44e5af38890c12b3b1d 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -1,7 +1,7 @@
 /*
  * filter graphs
- * copyright (c) 2008 Vitor Sessak
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2008 Vitor Sessak
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/defaults.c b/libavfilter/defaults.c
index 44262ca73419092427dbb53d83667cbdf584dfc1..4a48a3aff1f1fed2ba5ebafaf8280536822bf5ac 100644
--- a/libavfilter/defaults.c
+++ b/libavfilter/defaults.c
@@ -1,6 +1,6 @@
 /*
  * Filter layer - default implementations
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/formats.c b/libavfilter/formats.c
index f53d6baf626969e34e337c23f15837af00102abe..101ef09e5f308d3016853c063898c994a36b6b8b 100644
--- a/libavfilter/formats.c
+++ b/libavfilter/formats.c
@@ -1,6 +1,6 @@
 /*
  * Filter layer - format negotiation
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/graphparser.c b/libavfilter/graphparser.c
index e4faa927b9aa07ae5cbf99aabc01607b73d498b2..678b7bee70225657769d390034f7e5f1d8d8244a 100644
--- a/libavfilter/graphparser.c
+++ b/libavfilter/graphparser.c
@@ -1,7 +1,7 @@
 /*
  * filter graph parser
- * copyright (c) 2008 Vitor Sessak
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2008 Vitor Sessak
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_blackframe.c b/libavfilter/vf_blackframe.c
index 47ab3cfc1d60880b2f107561f3c19702878510e2..658c30fd2224154c3b9936a7c99f3a3015af6f4f 100644
--- a/libavfilter/vf_blackframe.c
+++ b/libavfilter/vf_blackframe.c
@@ -1,8 +1,8 @@
 /*
- * Copyright (C) 2010 Stefano Sabatini
- * Copyright (C) 2006 Ivo van Poorten
- * Copyright (C) 2006 Julian Hall
- * Copyright (C) 2002-2003 Brian J. Murrell
+ * Copyright (c) 2010 Stefano Sabatini
+ * Copyright (c) 2006 Ivo van Poorten
+ * Copyright (c) 2006 Julian Hall
+ * Copyright (c) 2002-2003 Brian J. Murrell
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_crop.c b/libavfilter/vf_crop.c
index 0d10febc14a1a792c4e345649c7cc4ae98491a2b..311ee30e7da038181302815efe8a38c4db2de018 100644
--- a/libavfilter/vf_crop.c
+++ b/libavfilter/vf_crop.c
@@ -1,5 +1,5 @@
 /*
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_cropdetect.c b/libavfilter/vf_cropdetect.c
index 2fe75308ddcc5e35f8a244c463014433648d9f3d..62c68640a3e46f7d00d8238bf884d00c68e56887 100644
--- a/libavfilter/vf_cropdetect.c
+++ b/libavfilter/vf_cropdetect.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2002 A'rpi
+ * Copyright (c) 2002 A'rpi
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or modify
diff --git a/libavfilter/vf_drawbox.c b/libavfilter/vf_drawbox.c
index 114a2ac830ddfc8015ec84ae69579dccacf39d3c..40d5e16e1ba40ae6219335e18c133c2ee0cf8a72 100644
--- a/libavfilter/vf_drawbox.c
+++ b/libavfilter/vf_drawbox.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 Affine Systems, Inc (Michael Sullivan, Bobby Impollonia)
+ * Copyright (c) 2008 Affine Systems, Inc (Michael Sullivan, Bobby Impollonia)
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_fifo.c b/libavfilter/vf_fifo.c
index cb9eebf5d028a4b7b2f4939a112c085a726e462d..32199eddc8317413758f9fd2421a759540c8cf0a 100644
--- a/libavfilter/vf_fifo.c
+++ b/libavfilter/vf_fifo.c
@@ -1,5 +1,5 @@
 /*
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_format.c b/libavfilter/vf_format.c
index 5e2c09915802af568541d1b9450559486692aa1f..c42e0bb373931f943cd59535882443e79ca2842a 100644
--- a/libavfilter/vf_format.c
+++ b/libavfilter/vf_format.c
@@ -1,5 +1,5 @@
 /*
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_frei0r.c b/libavfilter/vf_frei0r.c
index 48f5b4984133c8c24f51a3a99ced62eabbc9e078..a0e27bb62fbe4548134b0dd2afb2d14e92970dda 100644
--- a/libavfilter/vf_frei0r.c
+++ b/libavfilter/vf_frei0r.c
@@ -1,5 +1,5 @@
 /*
- * copyright (c) 2010 Stefano Sabatini
+ * Copyright (c) 2010 Stefano Sabatini
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
diff --git a/libavfilter/vf_libopencv.c b/libavfilter/vf_libopencv.c
index c2b59627a8393541a822648e1cc7e869b0ae265b..0eafeb6789c2ef6e3cd56bde4b72e395d3ee03cc 100644
--- a/libavfilter/vf_libopencv.c
+++ b/libavfilter/vf_libopencv.c
@@ -1,5 +1,5 @@
 /*
- * copyright (c) 2010 Stefano Sabatini
+ * Copyright (c) 2010 Stefano Sabatini
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_pad.c b/libavfilter/vf_pad.c
index f86e4c6fb63328b53e02363ef4351a52daf07df3..a661b9cb46b6e55011da1b6a49f152110572e52a 100644
--- a/libavfilter/vf_pad.c
+++ b/libavfilter/vf_pad.c
@@ -1,6 +1,6 @@
 /*
- * copyright (c) 2008 vmrsss
- * copyright (c) 2009 Stefano Sabatini
+ * Copyright (c) 2008 vmrsss
+ * Copyright (c) 2009 Stefano Sabatini
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_pixdesctest.c b/libavfilter/vf_pixdesctest.c
index 1d2f971f039ab0b521ceb172dc184997cc088813..1fb577e7fc1777cb72ed6a9789d7123fb1035262 100644
--- a/libavfilter/vf_pixdesctest.c
+++ b/libavfilter/vf_pixdesctest.c
@@ -1,6 +1,7 @@
 /*
+ * Copyright (c) 2009 Stefano Sabatini
+ *
  * This file is part of FFmpeg.
- * copyright (C) 2009 Stefano Sabatini
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
index d99e0c1dab22e2ae0a3267ca59d0c9e1d6c6cd35..100ba2b6b80b84f257b149ebb101fe4c5ea1f6a4 100644
--- a/libavfilter/vf_scale.c
+++ b/libavfilter/vf_scale.c
@@ -1,5 +1,5 @@
 /*
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_settb.c b/libavfilter/vf_settb.c
index b5b40bb31c6f2fbd1bdfb00b60010b36b4a9a37e..3e48ac4191946aad5d05d89c6ba871e487773f36 100644
--- a/libavfilter/vf_settb.c
+++ b/libavfilter/vf_settb.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010 Stefano Sabatini
+ * Copyright (c) 2010 Stefano Sabatini
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_slicify.c b/libavfilter/vf_slicify.c
index 82406fe18a3b9a9acbf12d5c81f631f64c027b91..177ac1f2b946b3eca1ed874d09174cf6bacb89a8 100644
--- a/libavfilter/vf_slicify.c
+++ b/libavfilter/vf_slicify.c
@@ -1,5 +1,5 @@
 /*
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_transpose.c b/libavfilter/vf_transpose.c
index 8d44e56ea3824cca2a66655868071279b633dc70..970c38120d2e776438217459707f6093af11fd19 100644
--- a/libavfilter/vf_transpose.c
+++ b/libavfilter/vf_transpose.c
@@ -1,6 +1,6 @@
 /*
- * Copyright (C) 2010 Stefano Sabatini
- * Copyright (C) 2008 Vitor Sessak
+ * Copyright (c) 2010 Stefano Sabatini
+ * Copyright (c) 2008 Vitor Sessak
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavfilter/vf_unsharp.c b/libavfilter/vf_unsharp.c
index 5cc5aa19ba584ef0736c50dc70fd265cb4869ec2..7aa7a4365149151504d986510583b28b490edb14 100644
--- a/libavfilter/vf_unsharp.c
+++ b/libavfilter/vf_unsharp.c
@@ -1,7 +1,6 @@
 /*
- * Ported to FFmpeg from MPlayer libmpcodecs/unsharp.c
- * Original copyright (C) 2002 Remi Guyomarch <rguyom@pobox.com>
- * Port copyright (C) 2010 Daniel G. Taylor <dan@programmer-art.org>
+ * Original copyright (c) 2002 Remi Guyomarch <rguyom@pobox.com>
+ * Port copyright (c) 2010 Daniel G. Taylor <dan@programmer-art.org>
  * Relicensed to the LGPL with permission from Remi Guyomarch.
  *
  * This file is part of FFmpeg.
@@ -23,7 +22,8 @@
 
 /**
  * @file
- * blur / sharpen filter
+ * blur / sharpen filter, ported to FFmpeg from MPlayer
+ * libmpcodecs/unsharp.c.
  *
  * This code is based on:
  *
diff --git a/libavfilter/vf_vflip.c b/libavfilter/vf_vflip.c
index 9d5d75ff22652ff79adf6191810c1078856b67f1..95d90d39e667342e8f43a9f1553351164b9fe04e 100644
--- a/libavfilter/vf_vflip.c
+++ b/libavfilter/vf_vflip.c
@@ -1,5 +1,5 @@
 /*
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *