[Ubuntu] ZSTD support in UbuntuGIS?

[Sebastiaan Couwenberg]

On 4/10/20 6:31 AM, Sebastiaan Couwenberg wrote:
> On 4/10/20 12:36 AM, Richard Sharp wrote:
>> I am using the 3.0.4 version of GDAL installed from the
>> https://launchpad.net/~ubuntugis/+archive/ubuntugis-unstable PPA in a
>> Docker container and see that the gdal installation does not include ZSTD
>> support.
> 
> That's not what the build logs says:
> 
>   ZSTD support:              yes
> 
> https://launchpadlibrarian.net/468243097/buildlog_ubuntu-bionic-amd64.gdal_3.0.4+dfsg-1~bionic0_BUILDING.txt.gz
> 
>> Is it possible for me to somehow enable ZSTD support in a >=3.0.4
>> version of GDAL? I worry this is a naive question but I am not familiar
>> with how GDAL supports various codecs.
> 
> How did you determine that it lacked the support?

It seems that GDAL only uses ZSTD for TIFF, since gdal uses the tiff
package instead of the embedded copy, ZSTD needs to be enabled in tiff.

Zstandard support was enabled in tiff (4.0.9+git181026-1), this change
is present in Debian buster, but not in Ubuntu xenial which has tiff
(4.0.9-5) which is two revision before ZSTD support was enabled.

Ubuntu focal is scheduled for release on the 23rd, upgrading to that
seems like a good option to have a more recent GIS stack.

Kind Regards,

Bas

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