Hi forum, Could anyone confirm my claim about packet tables not supporting filters? It would seem a natural thing to support since the filters require data chunking which is a requirement of packet tables.
Cheers, Brock On Thu, Jul 23, 2015 at 10:32 AM, Brock Hargreaves < [email protected]> wrote: > Hi Daniel, > > Thanks for the response. Perhaps I misunderstood HDF5 Packet Tables when I > was reading about them about a week ago. For example, examining their > signature for creation: > > * hid_t* H5PTcreate_fl( *hid_t* loc_id, *const char ** dset_name, > *hid_t* dtype_id, *hsize_t* chunk_size, *int* compression ) > > Versus a traditional hdf5 dataset which can take various properties list, > in particular dcpl_id: > > * hid_t* H5Dcreate( *hid_t* loc_id, *const char **name, *hid_t* > dtype_id, *hid_t* space_id, *hid_t* lcpl_id, *hid_t* dcpl_id, *hid_t* > dapl_id ) > > This gives me the impression that Packet Tables do not support filters, > such as ones used for lossless compression. One of the main reasons I'm > looking into HDF5 is because of it's ability to incorporate such filters. > > Cheers, > Brock > > On Thu, Jul 23, 2015 at 8:51 AM, Daniel Kahn <[email protected]> > wrote: > >> Hi Brock, >> >> Have you investigated the HDF5 Packet Table API? It was created precisely >> for data acquisition problems. I've never used it and thus can't provide >> any personal experience, but that would be my starting point. >> >> Cheers, >> --dan >> >> >> On 07/23/15 10:16, Brock Hargreaves wrote: >> >> Hi forum, >> >> I apologize for the verbosity of this message ahead of time but the devil >> is in the details. I've scoured the archives and have had trouble finding >> something similar to my problem in terms of scale. >> >> >> -- >> Daniel Kahn >> Science Systems and Applications Inc.301-867-2162 >> >> >> _______________________________________________ >> Hdf-forum is for HDF software users discussion. >> [email protected] >> http://lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org >> Twitter: https://twitter.com/hdf5 >> > >
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