What's the deal with avisource, CCE and ConvertToYUY2()?

[Matthew]

I feel stupid asking this but here goes...

AVISource("H:\jamesbond\sux0rs.avi",false)
BilinearResize(720,346)
AddBorders(0,67,0,67)
ConvertToYUY2(interlaced=false)

Does the last line need to be there?

Thanks :)

[buzzqw]

Afaik cce 2.5 need the converttoyuy2, cce 2.6x no. The meaning of interlaced=false/true is how avisynth frameserving cce. For interlaced video set to true, for progressive set to false.

Better answer from avisynth/CCE gurus.

BHH

[jorel]

CCE 2.66.01.07 don't work without
ConvertToYUY2() # with or without (interlaced=false)

waiting better answer from avisynth/CCE gurus too.

[Wilbert]

CCE (also 2.66) requires YUY2. The only difference with previous versions of CCE (and 2.67) is that an external codec can do the YV12-YUY2 conversion before passing the stream to CCE.

The safest is to do it in AviSynth otherwise you don't have any control which codec the conversion does for you (unless you know how to change your registry).

If your avi is interlaced, external codec would probably mess up during the conversion (because they assume progressive input).

This is also in the faq (Q14.4).

[jorel]

in the CCE faqs was wrote in
Q14.4 AVISynth 2.5 issues (can CCE decode YV12?)

"to get better chroma upsampling.
However, one possibility to feed YV12 directly into CCE is some external codec that decodes YV12 data for it. This seems to work reliably only with CCE-SP 2.67.00.10 and newer, both DivX and XviD should do the job,..."

then i still need ConvertToYUY2() in the script for CCE 2.66.01.07 !

thanks for answers and link !
:)

[Matthew]

Thanks Wilbert, I knew that applied for DVD (namely that it's better include the line and let avisynth do the conversion, rather than something else) but didn't know if the same applied with DivX/XviD.