In libavfilter, use consistently "Copyright (c)" in the licenseheaders.
Originally committed as revision 25838 to svn://svn.ffmpeg.org/ffmpeg/trunk
Fix timestamp handling in more filters after the change which set thetimebase in the filter link.
Originally committed as revision 25649 to svn://svn.ffmpeg.org/ffmpeg/trunk
Make the cropdetect filter print the time for each frame, in additionto the timestamp.
Originally committed as revision 25647 to svn://svn.ffmpeg.org/ffmpeg/trunk
Implement cropdetect filter.
Originally committed as revision 25447 to svn://svn.ffmpeg.org/ffmpeg/trunk