#423 Crash for CorePNG

[Liisachan]

Both ffdshow video decoder and VfW interface crash
when they try to decode CorePNG through libavcodec..
I'm on Windows 2000 and tested the daily build
ffdshow-20051111.exe and celtic_druid's 20051103.

Error Message Sample:
The instruction at "0x6fac3181" referenced memory at
"0x00000020". The memory could not be "read".

Those problems are gone, if you use CorePNG itself to
decode it.

Sample file attached (CorePNG_Sample.avi)

[Liisachan]

Video compressed by CorePNG (def settings)

[Anonymous]

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Fixed.

Thanks for testing this, I haven't tested CorePNG since I
added support for it to ffdshow.

[Liisachan]

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Confrimed that it's fixed in ffdshow-20051115.exe.
Thank you very much :D