CHANGELOG.md

Change Log

All notable changes to this project will be documented in this file.

Unreleased changes

Added

Changed

Fixed

v1.3.1 - Truncated Image Bugfix (2020-10-21)

Improves handling of truncated image errors for multi-segment products.

Details

Changed

• Clean up truncated file warning message

Fixed

• Handling of truncated image file exceptions in multi-segment product

v1.3 - GK-2A HRIT Imagery (2020-07-12)

Added support for multi-channel HRIT imagery using libjpeg for JPEG2000 conversion.

Details

Added

• Support for HRIT full disk imagery (see HRIT Decoding - J2K and missing CPPDUs)
• HRIT image processing tool (tools\hrit-img.py)
• JP2 (JPEG2000) to PPM converstion using libjpeg (licensed under GPLv3)
• UDP socket for receiving VCDUs from hardware modems such as the ETRA D8L
• to_hex() debugging utility method
• Link to GitHub release page on dashboard

Changed

• Indicate multi-segment progress per-wavelength rather than for the entire product
• Using pathlib over os module for some file operations
• Include spacecraft and downlink in dashboard schedule title
• Renamed "Last Image" dashboard block to "Latest Image"
• Renamed last/image and last/xrit API endpoints to latest/image and latest/xrit

Fixed

• TP_File triggering with M_PDU header offset (relevant issue comment)
• Output directory checking
• Handling of safe exit cases
• Handling of PIL.UnidentifiedImageError
• Handling of missing configuration sections and options

v1.2 - Monitoring Dashboard (2020-05-14)

Added a monitoring dashboard and JSON API running from a built in web server.

Details

Added

• Web-based monitoring dashboard
• JSON API for updating dashboard
• Access of received data over HTTP

v1.1 - Automatic Product Generation (2020-02-14)

Products (images/text) are now output directly from xrit-rx rather than relying on lrit-img.py and lrit-add.py. Progress bar for multi-segment images and colour-coded success/failure messages were also added.

Details

Added

• Output products (images/text) directly from demuxer
• Transparent enhanced image output option
• Added check for encrypted LRIT files in lrit-img.py and lrit-add.py
• Output file type options (Image or xRIT files)
• Demuxer configuration tuple
• Channel handler configuration tuple
• Detect GK-2A LRIT Daily Operation Plan
• Console output colours
• Progress bar for multi-segment images

Changed

• Default key file name (check when upgrading from an old version)
• keymsg-decrypt.py output file name
• Disable product output if no keys loaded
• Write single fill VCDU to packet file on VCID change
• Rename FILL packets to IDLE packets

Fixed

• Missing TrueType font exception

v1.0.3 - Infrared Enhancement Tool (2019-12-09)

Added work-around for COMSFOG and COMSIR1 transmission issue, an infrared imagery enhancement tool, and fixed some demuxer bugs.

Details

Added

• IR enhancement tool (tools\enhance-ir.py)
• Extra demuxer info in verbose mode

Changed

• Write incomplete TP_Files to disk on VCID change (COMSFOG / COMSIR1 issue)
• Clear xRIT key header after file is decrypted (avoids double-decryption)

Fixed

• Free-running loop while demuxing a file
• Exception caused by key index 0 in xrit-decrypt
• Final file from VCDU dump not being processed

v1.0.2 - Decryption Tools (2019-08-31)

Added decryption tools, an option to blacklist individual virtual channels, and fixed some demuxer bugs.

Details

Added

• Virtual channel (VCID) blacklist
• xRIT file decryption tool (tools\xrit-decrypt.py)
• Key file decryption tool (tools\keymsg-decrypt.py)

Fixed

• VCDU continuity counter
• Handle CP_PDU headers spanning multiple M_PDUs

v1.0.1 - Data Processing Tools (2019-07-29)

Added tools for bulk processing LRIT IMG and ADD files, plus some minor code refactoring.

Details

Added

• GK-2A virtual channel names
• GK-2A file type names
• LRIT image file processor (tools\lrit-img.py)
• LRIT additional data processor (tools\lrit-add.py)

Changed

• Enum for CP_PDU sequence
• CCITT LUT function location
• Tool class location

Fixed

• Socket connection reset exception

v1.0 - Initial Release (2019-07-23)

Initial release based on the COMS-1 project.