Does Intel IYUV codec (iyuv) on WinXP have a limit on max input resolution?

[hxuanyu]

Hi friends

I'm converting a 1920x1080 video using Virtual Dub on both Windows XP and Win7, but only succeeded on Win7.

Virtual Dub reported "Initialize video codec error, please check video frame size and codec settings".

After finding this article saying IYUV codec works with a max resolution of 640x480 http://www.medicalconnections.co.uk/kb/WriteAVI_problems, I converted input video to 640x480 first and then convert in Virtual Dub, then succeeded on both XP and Win7.

So I'm guessing the version in XP may do have a max resolution limit? Can anyone find out if there's any formal documentation for this?

Thanks

[jagabo]

Intel IYUV on Win7 doesn't have a 640x480 frame size limit. I just used tested it on a 1920x1080 video. No problem. WinXP itself doesn't have a frame size limit. But, I just tested it, the IYUV encoder under XP does.

You might be able to copy the Win7 IYUV codec (iyuv_32.dll) to XP. Nope, just tried it. Windows' system file protection feature will delete the Win7 codec and restore the XP codec!

[poisondeathray]

Does it need to be Intel IYUV ? or can you use another "brand" ?

Drastic codecs has a fourcc "IYUV" option, not limited to that resolution and will work on XP
http://www.drastic.tv/index.php?option=com_content&view=article&id=130:legacyycbcrcode...ions&Itemid=95

[jagabo]

IYUV is a a pretty outdated codec. Use something else if possible. Lagarith or UT, for example.

[poisondeathray]

It's just uncompressed YUV 4:2:0 .

But there can be reasons and certain programs that won't accept certain lossless codecs , or other fourcc's and planar arrangements like YV12

[El Heggunte]

.......
You might be able to copy the Win7 IYUV codec (iyuv_32.dll) to XP. Nope, just tried it. Windows' system file protection feature will delete the Win7 codec and restore the XP codec!

First goto the dllcache folder, delete the backup of the pesky DLL, then you can overwrite the old version with the new one.