#157 Avisynth read error/access violation

[Anonymous]

My email address: tpolet@hetnet.nl

During frameserving under Virtualdub, Avisynth 2.5 gives
an access violation (addresses vary each time) and a
read error. Avisynth fails and causes Virtualdub to halt.
Tested and reproduced using Vdub 1.5.10 and 1.6.10.
The script uses several filters (de-grain and de-spot), but
switching these off doesn't change the error.

Script functions OK with other Avi files. Only one place
in one Avi file is affected but Vdub does not report any
video stream errors on the file. No other source file
check known to me. Source files are encoded Huffyuv
720x576 (PAL, 25fps), deinterlaced.

Screen print of error message and Vdub log available.

script used:
-------------------------
AviSource("e:\input.avi")

LoadPlugin("despot.dll")

Loadplugin("DeGrainMedian.dll")

ConvertToYV12()

DeGrainMedian(limitY=5,limitUV=7,mode=0)

DeSpot(interlaced=false, pwidth=12, pheight=8, p1=5,
p2=2, mthres=3, mwidth=7, mheight=5, merode=100,
show=0, sign=2, ranked=true, p1percent=0, dilate=0,
fitluma=true, blur=0, motpn=false, seg=0)

ConvertToYUY2()
-----------------------------

[Nobody/Anonymous]

Vdub log screen print

[Ian Brabham]

Logged In: YES
user_id=673887

Avisynth version ?????

Try 2.5.6 RC1

[Klaus Post]

Logged In: YES
user_id=578300

Please supply:

1) Clip that reproduces the problem.
2) Minimal script to reproduce, without external filters.
3) Exact version you are using. If unknown, install the latest.

Re-open the bug.