Cropping causes white-balance "flash" (SUPER H.264)

[[H]omer]

Here's a two minute clip showing the problem:

http://media.slated.org/displayimage.php?album=5&pos=2

You'll see that half way through the clip, the white balance flashes really high for some reason.

The source is a an MPEG2 VOB, 25fps, progressive -> DGIndex demux to a d2v + wav -> Avisynth cropped (8,4,0,0) + resized (320,176) + re-muxed -> SUPER H.264 standard iPod profile (320,176 @ 25fps / 16:9 ratio). The output container is mp4.

If I choose any other codec, the white-balance problem disappears.

If I don't crop the image, the white-balance problem disappears.

The output from Avisynth appears to be "YVU12 4:2:0 Planar", with the registered decoder being "Helix YV12"

What do I need to do at either end of the process to correct this white-balance issue?

Or should I give up using SUPER and try another encoder?

I do have Nero7, but I'm not sure if it has the right H.264 profiles for an iPod 5.5G.

I'm not averse to command line tools either, and could use ffmpeg directly if that would help.

Any suggestions welcome.

TIA.

[Soopafresh]

It could be the version of DirectShowSource.dll in your Avisynth plugins folder. I'd tell you to update to Avisynth 2.57, but I don't know if that would affect Super in some other way.

Here's a version that might resolve you issue, but as always, YMMV

http://avisynth2.sourceforge.net/directshowsource.zip

[[H]omer]

Thx.

I'll give it a go.