hi,
yes sorry i have forget to give more informations
i am under winXP, yes the clip is in yv12 if i try to play it in mpc or wmp7/8 it show me a black screen , with the right lenght of the sample but it doesn't play it (i can only seek but it stay on "pause").
but under vdubmod i can open the clip and it show me a picture (bug with wrong colorconversion)
i have put the screenshot here :
500*400 in yv12
http://dark.pluridis.org/~darkangel/bad.png
496*400 in yv12
http://dark.pluridis.org/~darkangel/good.png
if i convert it in rgb32 the sample can be played fine (even in 500*400), so i suppose it's a problem in the dshow filter not in avisynth
if i open the script in graphedit it show me :
filename => avi decompressor => color space converter => video render
if i click on "property" on avi decompressor it say me :
in : YV12 500*400, 12 bits
out : RGB32 500*400, 32 bits
and solor space converter say me :
in : RGB32 500*400, 32 bits
out : RGB32 500*400, 32 bits
strange ! i hope this can help u
Bye.