2022.12.09 01:29 "[Tiff] How to write multi-file TIFFs", by L. E.
Segovia
Thread
2022.12.09 13:52 "Re: [Tiff] How to write multi-file TIFFs", by John
Hello amyspark,
My understanding is that you set the magic TIFFTAG_SUBIFD tag on a directory with an $n element array of offsets, all initialized to 0, and then the next $n TIFF directories you write will appear as subdirectories of this directory, with the offsets filled in for you.
Or that's what I did here and it seems to work for me:
https://github.com/libvips/libvips/blob/master/libvips/foreign/vips2tiff.c#L2127-L2141
John