[gdal-dev] gdaladdo zoom level not supported

[mmfuller]

I tried to add zoom levels to an mbtiles file using gdaladdo. The mbtiles file was constructed from a large geotiff using gdal_translate.
When I ran gdaladdo, I got an error message about zoom levels:
ERROR 6: zoom_level > 22 not supported

A commenter on stack exchange GIS pointed out that I need to use power-of-two levels.

But they also noted that the error I got is normally for vectors, not rasters.

Also, they felt that the correct message should be "

Only power of two overviews are supported".

What do you think?

FILE CONSTRUCTION STEPS AND DETAILS:

-

construct GTiff from tiff:

gdal_translate -of 'GTiff' -a_srs '+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs' -a_ullr -90.473134 31.184680 -90.471041 31.182195 'TLTR.tif' 'TLTR_crs.tif'

-

convert to mbtiles format:

gdal_translate 'TLTR_crs.tif' 'TLTR.mbtiles' -of MBTILES

-

add zoom levels:

gdaladdo -r nearest 'TLTR.mbtiles' 12 14 16 18 20 22

Error message:

`ERROR 6: zoom_level > 22 not supported`

Try without explicit zoom levels: (but I did not clear overviews so this may be expected)

gdaladdo -r nearest 'TLTR.mbtiles'

ERROR 6: zoom_level > 22 not supported

Output from gdalinfo for TLTR.tif and TLTR crs.tif:

gdalinfo TLTR.tif
Warning 1: TIFFFetchNormalTag:Incompatible type for "RichTIFFIPTC"; tag ignored
Driver: GTiff/GeoTIFF
Files: TLTR.tif
Size is 21346, 25128
Coordinate System is `'
Metadata:
  TIFFTAG_DATETIME=2020:10:14 09:52:37
  TIFFTAG_RESOLUTIONUNIT=2 (pixels/inch)
  TIFFTAG_SOFTWARE=Adobe Photoshop 21.2 (Macintosh)
  TIFFTAG_XRESOLUTION=72
  TIFFTAG_YRESOLUTION=72
Image Structure Metadata:
  COMPRESSION=LZW
  INTERLEAVE=PIXEL
Corner Coordinates:
Upper Left  (    0.0,    0.0)
Lower Left  (    0.0,25128.0)
Upper Right (21346.0,    0.0)
Lower Right (21346.0,25128.0)
Center      (10673.0,12564.0)
Band 1 Block=21346x3 Type=Byte, ColorInterp=Red
  Mask Flags: PER_DATASET ALPHA
Band 2 Block=21346x3 Type=Byte, ColorInterp=Green
  Mask Flags: PER_DATASET ALPHA
Band 3 Block=21346x3 Type=Byte, ColorInterp=Blue
  Mask Flags: PER_DATASET ALPHA
Band 4 Block=21346x3 Type=Byte, ColorInterp=Alpha

gdalinfo TLTR_crs.tif
Driver: GTiff/GeoTIFF
Files: TLTR_crs.tif
Size is 21346, 25128
Coordinate System is:
GEOGCS["WGS 84",
    DATUM["WGS_1984",
        SPHEROID["WGS 84",6378137,298.257223563,
            AUTHORITY["EPSG","7030"]],
        AUTHORITY["EPSG","6326"]],
    PRIMEM["Greenwich",0],
    UNIT["degree",0.0174532925199433],
    AUTHORITY["EPSG","4326"]]
Origin = (-90.473134000000002,31.184680000000000)
Pixel Size = (0.000000098051157,-0.000000098893664)
Metadata:
  AREA_OR_POINT=Area
  TIFFTAG_DATETIME=2020:10:14 09:52:37
  TIFFTAG_RESOLUTIONUNIT=2 (pixels/inch)
  TIFFTAG_SOFTWARE=Adobe Photoshop 21.2 (Macintosh)
  TIFFTAG_XRESOLUTION=72
  TIFFTAG_YRESOLUTION=72
Image Structure Metadata:
  INTERLEAVE=PIXEL
Corner Coordinates:
Upper Left  ( -90.4731340,  31.1846800) ( 90d28'23.28"W, 31d11' 4.85"N)
Lower Left  ( -90.4731340,  31.1821950) ( 90d28'23.28"W, 31d10'55.90"N)
Upper Right ( -90.4710410,  31.1846800) ( 90d28'15.75"W, 31d11' 4.85"N)
Lower Right ( -90.4710410,  31.1821950) ( 90d28'15.75"W, 31d10'55.90"N)
Center      ( -90.4720875,  31.1834375) ( 90d28'19.52"W, 31d11' 0.38"N)
Band 1 Block=21346x1 Type=Byte, ColorInterp=Red
  Mask Flags: PER_DATASET ALPHA
Band 2 Block=21346x1 Type=Byte, ColorInterp=Green
  Mask Flags: PER_DATASET ALPHA
Band 3 Block=21346x1 Type=Byte, ColorInterp=Blue
  Mask Flags: PER_DATASET ALPHA
Band 4 Block=21346x1 Type=Byte, ColorInterp=Alpha
(base) dogmat2 gdal results of transformations:
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