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2004.02.05 15:19 "Re: unknown tags, tiffcp makes invalid copies", by Mark Mcconnell
On 5 Feb 2004 at 13:18, Andrey Kiselev wrote:
{Re: [Tiff] unknown tags, tiffcp mak...}:
> On Mon, Feb 02, 2004 at 03:28:28PM -0800, Mark McConnell wrote:
> > Is there a way to cause tiffcp to make copies with a valid format,
> > even if it encounters unknown tags?
> >
> > I am trying to use tiffcp on files which contain unknown tags 32931
> > and 32934. The resulting copy has an invalid format, which can't be
> > opened by an image viewer.
>
> Mark,
>
> Your problem is the same as the one reported here:
>
> http://bugzilla.remotesensing.org/show_bug.cgi?id=483
>
> I have fixed this bug, so you can update from CVS to get the working
> code.
>
> Andrey
Andrey,
Thank you for your speedy help. I retrieved this, and compiled it, but I had
problems that you may want to know about. My first test dumped core
(and produced a corrupt copy).
$ tiffcp 03600697.001 newtest.tif
TIFFReadDirectory: Warning, 03600697.001: unknown field with tag
33000 (0x80e8) encountered.
Bus error (core dumped)
My second test gave warnings, BUT produced a valid image:
$ tiffcp 200401285030.00* newtest.tif
TIFFReadDirectory: Warning, 200401285030.001: unknown field with tag
32931 (0x80a3) encountered.
TIFFReadDirectory: Warning, 200401285030.001: unknown field with tag
32934 (0x80a6) encountered.
tiffcp in free(): warning: modified (chunk-) pointer
tiffcp in free(): warning: modified (chunk-) pointer
tiffcp in free(): warning: chunk is already free
tiffcp in free(): warning: chunk is already free
I hope this is useful to you.
Mark
--
Mark McConnell
mkmcconn@hevanet.com