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David J Taylor · Guest

Folks,

I am having some problems with moving a program to Windows Vista. It
creates an AVI file from a sequence of 24-bit RGB bitmaps, and then
replays the AVI with a Delphi 5 TMediaPlayer component. However, the AVI
produced is somehow different in the first couple of thousand bytes.
There should be no codec issues involved, as it's uncompressed RGB frames.
I've downloaded two or three "AVI diagnostic" utilities, but they don't
show a difference.

Windows Media Player 11 can open both files OK.

On the "faulty" file (~Animation1.avi)

- Virtual Dub shows the frames as being displaced to the right, as if it
had started reading too early into the file. The left-hand part of the
frame is the wrong colour (rgb sequence error?)

- JASC's Animation Shop also shows the frames displaced to the right, but
here the left part of the frame is the correct colour and the right-hand
part is wrong, suggest another "off-by-something" error in reading the
file, but off by a slightly different amount!

I have the AVI files and fc/b comparison of the two available here:

http://david-taylor.110mb.com/

The total download is 7MB.

Could anyone take a look at the AVIs and see what might be wrong with
them? They were created with the avifil32.dll interface using
AVIStreamWrite etc. Rather old, I know.

Thanks,
David

Guest

Vista creates AVI files with invalid headers when using
AVIStreamWrite.

It is currently an unresolved problem:
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=844438&SiteID=1