[gdal-dev] Build overviews and tile index

[Saâd HESSANE]

Hi list,

I'm workig on a Mapserver/GDAL application, and I have to setup the
datasource (create tileindex and overviews) to boost the performance.

I have two question :

   1. Can I store overviews in a different path than the original raster
   path? The original path can be in a read only folder like an optical disc.
   2. Can I build overviews of an entire VRT tile index ?

Thank you.
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