Hi,
nothing suspicious from a quick look, but I must confess I'm not
BMP-header-decoding-from-hex-string fluent, so I might have missed
something. It would help if you could extract the first kilobyte of the
file and attach it
Even
Le 31/01/2024 à 12:28, zrh via gdal-dev a écrit :
Hi, everyone,
I have 2 BMP files, huge size:
The first one:
E:\w8.bmp, size=12,884,901,942 bytes
the file header:
42 4D 00 00 00 00 00 00 00 00 36 00 00 00 28 00 00 00 00 00 01 00 00 00 01 00
01 00 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
The second one:
E:\w9.bmp, size=51,438,944,310 bytes
the file header:
42 4D 00 00 00 00 00 00 00 00 36 00 00 00 28 00 00 00 00 FF 01 00 00 00 02 00
01 00 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
My problem is:
When I run Gdalinfo.exe:
C:\OSGeo4W\bin>gdalinfo E:\w8.bmp
ERROR 4: `E:\w8.bmp' not recognized as a supported file format.
gdalinfo failed - unable to open 'E:\w8.bmp'.
But E:\w9.bmp is OK.
Why? Please help!
Best regards,
--------------
zrh
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