Add my name to copyright & author as requested by the original author.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@17858 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/timefilter.c

 /*
  * Delay Locked Loop based time filter
  * Copyright (c) 2009 Samalyse
+ * Copyright (c) 2009 Michael Niedermayer
  * Author: Olivier Guilyardi <olivier samalyse com>
+ *         Michael Niedermayer <michaelni gmx at>
  *
  * This file is part of FFmpeg.
  *

libavformat/timefilter.h

 /*
  * Delay Locked Loop based time filter prototypes and declarations
  * Copyright (c) 2009 Samalyse
+ * Copyright (c) 2009 Michael Niedermayer
  * Author: Olivier Guilyardi <olivier samalyse com>
+ *         Michael Niedermayer <michaelni gmx at>
  *
  * This file is part of FFmpeg.
  *