Commits on Dec 26, 2023

1. Document JPEG 2000 support for writing YCbCr and reading subsampled c… …

   …olor
   
   Read support for subsampled RGB and YCbCr color channels was added in
   4f4c3b3 and not documented at the time.  Write support for YCbCr
   appears to date to 61fb89e, the original commit.
   
   Retain the existing language about YCbCr input conversion to RGB, even
   though it's not completely correct.  OpenJPEG through 2.5.0 doesn't set
   color_space in opj_read_header(), so we end up in our
   OPJ_CLRSPC_UNSPECIFIED fallback path, which guesses sRGB if there's no
   component subsampling.  This means we currently can't round-trip YCbCr via
   JPEG 2000.  The next OpenJPEG release will fix this, so leave the docs as
   is.
   
   Also fix typo: .j2p -> .jp2.

   

   bgilbert committed Dec 26, 2023
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