[求助]VDM无法打开AVS

VempX

# Created with Gordian Knot
#
# http://gknot.doom9.org

#  PLUGINS
LoadPlugin("D:\Media\GORDIA~1\DGMPGDec\DGDecode.dll")

#  SOURCE
mpeg2source("E:\PROLOGUE_LIVE\VIDEO_TS\Lia.d2v", idct=0)

#  CROPPING
crop(10,0,702,480)

#  RESIZING
LanczosResize(640,480)

使用VDM打开这个AVS就出现这个提示
Couldn't locate decompressor for format "YV12"(unKnown)
VirtualDub requires a Video for Windows(VFW) compatible codec to decompress cidso. DirectShow codecs,such as those used by Windows Media Player,are not suitable.Only "Direct stream copy"is acailable for this video.

这是咋回事？