BLUE support now in sigmf-python v1.6+

Kyle A Logue <[email protected]> Tue, 20 Jan 2026 17:22:10 +0000
Newsgroups gmane.comp.gnu.radio.general
Message-ID <SA0PR09MB6617B7FDC6DBBEAD56A45490B989A@SA0PR09MB6617.namprd09.prod.outlook.com>
As some of the SDR community are still using MIDAS/PLATINUM Blue recordings (commonly .cdif) we have just added support to sigmf-python to read and/or convert these files.

After installing sigmf-python v1.6+ (pip install sigmf) you can now do:

import sigmf
meta = sigmf.fromfile('record.cdif')
# access samples
meta[0:100]
# access metadata
meta.sample_rate
# access BLUE fields
Meta.get_global_field("blue:fixed")

There is also a command-line converter:

sigmf_convert record.cdif converted.sigmf

For more information see the GitHub release page<https://github.com/sigmf/sigmf-python/releases/tag/v1.6.1> or our API documentation<https://sigmf.readthedocs.io/en/latest/>.

If you are interested in contributing to the SigMF specification or language-specific implementation send me an email.

Kyle Logue
⚝ The Aerospace Corporation