Re: [gdal-dev] Show isBigTIFF in image metadata

2023-11-03 Thread Rahkonen Jukka via gdal-dev
- Lähettäjä: Kurt Schwehr Lähetetty: perjantai 3. marraskuuta 2023 3.08 Vastaanottaja: Even Rouault Kopio: Rahkonen Jukka ; 'gdal-dev@lists.osgeo.org' (gdal-dev@lists.osgeo.org) Aihe: Re: [gdal-dev] Show isBigTIFF in image metadata Jukka, What's the exact use case for needing to kn

Re: [gdal-dev] Show isBigTIFF in image metadata

2023-11-02 Thread Kurt Schwehr via gdal-dev
Jukka, What's the exact use case for needing to know if a tiff is traditional or BigTIFF? Is there a key tool that doesn't understand BigTIFF? The only one I know of is Autodesk Civil3D. Thanks, -Kurt On Thu, Nov 2, 2023 at 2:49 PM Even Rouault via gdal-dev < gdal-dev@lists.osgeo.org> wrote: >

Re: [gdal-dev] Show isBigTIFF in image metadata

2023-11-02 Thread Even Rouault via gdal-dev
Jukka, Does it feel reasonable? I know that overviews may be standard TIFFs while the main image is BigTIFF but maybe the information from the header would be enough. Or have I missed some existing tool? I thought that tiffinfo at least would report TIFF/BigTIFF but it doesn’t. tiffdump d

[gdal-dev] Show isBigTIFF in image metadata

2023-11-02 Thread Rahkonen Jukka via gdal-dev
Hi, I tried to find some easy way for checking with GDAL if an image is a standard TIFF or BigTIFF but I could not find any. It seems that "more big.tiff" on Windows finds "II+" from the beginning of the file if the image is BigTIFF and "II*" otherwise. Or then I can open the image with a hex e