Overnight getting "source image too small" on old .avs files

[Starduster]

All of a sudden I'm getting the "source image too small for this resize method" on all my .avs files on two different Windows 2008 servers. These files haven't been touched for months (some years) and used to work. Sample .avs code looks like:

vidSrc="MOB_213_0_1.flv"
stdVid = DirectShowSource(vidsrc, fps = 15, convertfps = True)
stdVid = stdVid.ConvertToRGB32().Spline36Resize(640,480)

Error happens on the last line.

The only thing I can think of that's changed is that Windows updates have been applied to both servers and a new version of ffmpeg installed.

What could have happened and more importantly, how do I fix this? (panic setting in...)

[feisty2]

its a typical dss error
use an alternative source filter like "lwlibavvideosource"

[Starduster]

Not exactly sure I know what you mean by a dss error... but I will give that a go but it still is a huge concern why after years of doing it the other way, it stopped working.

[feisty2]

just be aware that dss works by calling system decoders via directshow method
so if anything unusual affects the system decoders, then shit happens

[Starduster]

Ah... then it's happing on my foot! ;-)

[Starduster]

So, it appears that lwlibavvideosource requires Avisynth 2.6, correct? If so, I'll need to load that on another machine somewhere to test.

[feisty2]

you can use ffvideosource instead if you ain't got avs 2.6

[creaothceann]

or DSS2

[Reel.Deel]

So, it appears that lwlibavvideosource requires Avisynth 2.6, correct?

LSMASHSource does indeed work with AviSynth 2.5.8 but colorspaces will be limited to RGB24/32, YUY2, and YV12.

[Starduster]

Lots of good things to try. While I was looking at the different options, I reinstalled the K-lite codec pack and things seem to work again. I'll post that in another thread so I don't mess this one up and can repond to the different options you've all mentioned.