Garbled HuffYUV Encoding

Infinity Squared · Post by **Infinity Squared** » Sat Jun 02, 2007 8:32 pm

Right, refer to the Screenshot below for reference.

My situation is thus...

Currently I'm working on my latest project and so for beta purposes, I decided to render the video. The source footage was originally PAL DVDs, converted to HuffYUV (with the RGB compression made to convert to YUY2 encoding) with resolution of 1024x576.

I was happy to have just stuck with keeping the RGB compression converting to YUY2 encoding for the beta I was rendering, but just for a hoot, I decided to instead change that to "Predict gradient (best)". And that's when I end up with that garbage you see on the screenshot. It plays for about a second in the segments from the original footage I'm working with before moving to what you see there and after another second, whatever media player I was playing crashed. I've tried both 288 and 576 on the Field Threshold fied for all those curious, but my footage has already been converted to progressive to start with, so I didn't think this should have been an issue.

Now why, you say, don't I just stick with converting to YUY2 encoding? Primarily because I want to maintain a very high quality specifically for the bits that aren't from the DVDs themselves. Apart from the DVD footage, I'm also working with some self made footage, and the gradient for those tend to get noticeably averaged unless I had the Predict gradient (best) selected in the RGB compression.

Any tips or interjections as to why this is occuring is appreciated

post-it · Post by **post-it** » Sat Jun 02, 2007 9:36 pm

I use CorePNG -- myself; but then, I know my 8-gig of RAM also helps

Re-Install your HuffyYUV-12 software ( without un-installing what you already have installed ) -- something did't get loaded correctly.

that's the kind of picture we used to get 5 years ago when Divx4.0.2 was released -- that was all we had to do to correct the Codec's back then; nothings changed -- sometimes Codec's just don't get loaded right "the first time"

umm, you are usung a DirectShow Filter when using Huffy - right ???

Infinity Squared · Post by **Infinity Squared** » Sat Jun 02, 2007 10:24 pm

I'm outputting this from Vegas. No directshow. I might give reinstalling it a try, but I have my doubts that that is the case. I'm more inclined to believe that I'm re-encoding HuffYUV that was converted to YUY2 in the RGB compression back to RGB... or something...

Scintilla · Post by **Scintilla** » Sat Jun 02, 2007 10:36 pm

I don't suppose Vegas has a "Recompress" export setting like Adobe Premiere Pro does? Absolute Destiny mentioned that Premiere sometimes has problems if some areas of the timeline have preview files rendered (may be a YUV colorspace) and some don't (always RGB); if you don't recompress, then Premiere ends up throwing some RGB video and some YUV video at HuffYUV, which obviously can only choose one encoding mode.

I'm quite surprised Zarxrax hasn't updated <a href="http://www.animemusicvideos.org/guides/ ... .html">the Vegas Video export page in EADBAG</a>...

Infinity Squared · Post by **Infinity Squared** » Sat Jun 02, 2007 10:51 pm

Uh, no, it doesn't have recompress so far as I've used it. However, I think you may have a point with the previews being in different colourspace, so I might clean up all pre-rendered things before I give this another go...

Infinity Squared · Post by **Infinity Squared** » Sat Jun 02, 2007 11:09 pm

Bah... didn't work... I might have to do work arounds with this one...

Zero1 · Post by **Zero1** » Sun Jun 03, 2007 2:29 am

Try lagarith?