to be honest, I am still surprised that hdf5 doesn't contain these state-of-the-art encoders, but rather ships bzip2 et al. which are painfully slow and don't make any account of computer architectures (lz4 is cache aware AFAIK). But hey, coming up with a hdf5 compressor is straight forward after one wrangled with the docs. I just don't know how contributing to hdf5 works.
FWIW, I think the whole point of the plugin design in HDF5 is to *enable* the community to develop and support what can potentially be a large variety of complex filters. I don't think any one team, focused on the core library support could possibly have the resources to also support a wide variety of compression filters. The key thing The HDF5 Group *is* doing is managing the filter ids and managing information about the filters, here... https://support.hdfgroup.org/services/filters.html#zfp Mark
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