copyed from
http://www.afterdawn.com/Changes from FFDSHOW 2004-04-24 to FFDSHOW 2004-05-01
updated x264
converted sup_XXX macros to static inline functions
init xvid colorspace conversion only once
VFW: RGB565->RGB555
increased IffdshowDecVideo version
correct detection of RGB color formats
IffProc::getCspInfo
updated xvid colorspace conversion routines
libavcodec headers cleanup
updated libavcodec, FLV1 decoding
swscaler: YVYU support, RGB15/16 fixes
support for HuffYUV 2.2 interlace flag (decoding only)
RGB32 FFV1 encoding support
YUV 4:1:0 FFV1 decoding fix
AVIS audio DirectShow decoding
pvcd quantization matrix by Manuel Cobos
updated libavcodec