Avisynth read error

[joedan]

Hi :)

I'm using the latest avisynth to frameserve my dvd2avi project to vdub and avisynth always seems to crash at the exact same spot with the following error:

avisynth read error: avisynth caught an access violation at <hex value> attempting to read from <hex value>.

I've tried re-ripping the vobs and re-doing the dvd2avi project and that hasn't helped.

My script is:

LoadPlugin("Decomb500b13.dll")
LoadPlugin("MPEG2Dec3.dll")
mpeg2source("vobsproject.d2v")
Telecide(order=1,guide=1,post=2,blend=true)
Decimate(Cycle=5)
crop(16,6,-14,0)
LanczosResize(480,480)

Does anybody know the cause of this? or maybe a way i could work around it?

Thanks for your replies :D

[Malevolent]

I've had a gazillion access violations on different situations, and indeed i found a working solution. Free RAM before starting an encode.
I have numerous tasks running at any given time, so sometimes most of the free RAM isn't "free" because applications tend to hog memory even when they don't really need it. So i've used a RAM freeing application regularry. Awhile ago i noticed that no access violations would occur with avisynth if i'd freed RAM just before starting an encode, so while this isn't a real "fix" to the problem itself, it does prevent it (for me anyway).
Try it out and tell us if it worked.



:devil:

[joedan]

unfortunately that hasn't helped :(

i stopped all other programs that were running and even tried using one of those programs that frees up your RAM but avisynth always seems to crash at exactly the same spot, since it always gives me the same hex values.

[Richard Berg]

What OS do you use? Malevolent's solution will only apply to a Win9x heap gone totally awry.

My troubleshooting process would be to remove filters one at a time until the error goes away. I'd pay an especially close eye to mpeg2source, since there are countless versions floating out there (only a few of which are bug-free).

[Malevolent]

@Richard Berg:

Actually it's not "just for Win9x" , as i am using XP.

[sh0dan]

What mpeg2dec3 version are you using?

[Kurosu]

Just a wild guess, check there:
http://forum.doom9.org/showthread.php?s=&threadid=54456&perpage=20&pagenumber=13

Decomb5.00b13 is known to produce a crash, update with the linked b15 in the first post of this thread. But now that I check, it's only for guide=2... Anyway, update your plugin, that shouldn't hurt ;)

[joedan]

ok, i upgraded to the latest mpegdec and downloaded decomb500b15 and now everything works perfectly! :D

thank you for your help ^^