Na stránce Avisynth ve FAQ je:Původně odeslal SOAD
Tak jsem si nainstaloval ten novej Avisynth, ale furt se tomu něco nelíbí
VirtualDub Error
Couldn't locate decompressor for format 'YV12' (unknown)
VirtualDub requires a Video for Windows (VFW) compatible codec to decompress video. DirectShow codecs, such those used by Windows Media Player, are not suitable.
Q1.10: How do I use v2.5x if the encoding programs can't handle YV12 (like Virtualdub, TMPGEnc or CCE SP) ?
A: Using Virtualdub you have to add "ConvertToYUY2" to your script or you have to install a YV12 decompressor like DivX5 or one of the recent XviD builds of Koepi (XviD-04112002-1 or newer). Enabling "fast recompress" implies that there will be a YV12 --> YUY2 --> YV12 conversion. (DivX3/4 also supports YV12, except that PIV users could experience crashes when encoding to DivX4 in YV12.)
Using TMPGEnc you have to add the line ConvertToRGB24 to your script, and for CCE SP you need to add the line ConvertToYUY2 to your script, since Windows has no internal YV12 compressor. You can also install DivX5 or one of the recent XviD builds of Koepi [XviD-04112002-1 or newer] which will decompress the YV12-AVI for you when loading the avi in TMPGEnc or CCE SP.
Q1.15: I installed AviSynth v2.5 and DivX5 (or one of the latest Xvid builds of Koepi), all I got is a black screen when opening my avs in Virtualdub/VirtualdubMod/CCE/TMPGEnc ?
A: Ok, apperently your video is not decompressed by DivX5 (or XviD). Go to your windows-dir and rename a file called MSYUV.DLL, or add the following to your registry file:
REGEDIT4
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32]
"VIDC.YV12"="divx.dll"
Replace "divx.dll" by "xvid.dll" for xvid.
Odpověď s citací