[lansing]

Originally Posted by Gavino

Since YV12<->RGB32 goes via YV24, this also gives rise to an effective chroma shift as I described above. To avoid this, do the conversion explicitly to YV24 and shift the chroma back before the conversion to RGB32.

ConvertToYV24(chromaresample="point")
MergeChroma(PointResize(width, height, 0, 1))
ConvertToRGB32()
... # filtering in RGB32
ConvertToYV12(chromaresample="point")

Then the only losses come from the YUV/RGB conversion (rounding, etc, as described by poisondeathray).

thanks for the help to all of you guys

And one more thing, if i ran neat video in virtualdub and output the result as lagarith lossless in YV12, before putting it into avs, will i get the same result as the avs conversion above?