Originally committed as revision 1286 to svn://svn.ffmpeg.org/ffmpeg/trunk
Rullgård <mru@users.sourceforge.net>. I've left out the idctCol2 part, because W4 has recently been decreed to be 16383, and also I doubt it will give a noticeable speedup. Originally committed as revision 1029 to svn://svn.ffmpeg.org/ffmpeg/trunk