[mapserver-users] Refreshing AWS credentials for the /vsis3/ driver

[Peter Schmitt]

On Thu, Oct 27, 2016 at 11:10 AM, Even Rouault <even.rouault at spatialys.com>
wrote:
>
> > > > When the image is deflate-compressed,  gdalinfo command does two
> range requests.
> > > > When the image is jpeg-compressed, gdalinfo does 13 range requests.
> > >
> > > Could you post the outpout of "tiffdump jpeg.tif" ? There are some
> hacks
> > > in libtiff regarding JPEG compression and in particular JPEG tables
> that
> > > might perhaps cause spurious IFD rewriting.
> >
> > Here's the ouput of "tiffdump jpeg.tif": http://pastebin.com/raw/
> pX6XMYVT
>
> That's what I suspected. The IFD are not placed at the beginning of the
> file,
> but rather rewritten after each "data section".
> Which libtiff version is used in your GDAL build: internal libtiff or
> system
> libtiff (if so, which version)? But I wouldn't surprise that the issue
> exists
> with any libtiff version because of what I mentionned with jpeg
> compression.
> That might probably be fixable (likely with some headaches)
>
>
I built GDAL-2.1.1 with these flags:
https://github.com/pedros007/mapserver-docker/blob/master/gdal-build.sh

    --with-rename-internal-libtiff-symbols=yes \
    --with-rename-internal-libgeotiff-symbols=yes \
    --with-libtiff=internal \
    --with-geotiff=internal \
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