Changelog

All notable changes to this project are documented in this file.

The format is based on Keep a Changelog.

1.0.0 — YYYY-MM-DD

Initial stable release of gstklvplugin as a GStreamer 1.x plugin suite written in C11/GNU11 for end-to-end KLV metadata workflows.
Four production elements: klvmetaenc, klvmetadec, klvframeinject, and tspmtrewrite.
Full MISB ST 0601.8 local-set coverage driven by data/stanag4609_tags.ini, including BER lengths, MISB UL handling, checksum generation/validation, INI-driven scaling, and hex: / base64: support for byte-oriented tags.
Internal KLV helper libraries in src/klv/ for BER, checksum, JSON parsing, scaling, tag-definition loading, and UL constants.
Internal MPEG-TS helper libraries in src/ts/ for CRC-32/MPEG-2, PAT/PMT parsing, and PMT section rebuilding.
Meson as the primary build, test, and install workflow, plus CMake support for alternative builds and the C++ example programs.
Python examples for local TS roundtrip, SRT sender/receiver, and UDP sender/receiver.
C++ examples for TS roundtrip, SRT sender/receiver, and UDP sender/receiver.
Bash workflow helpers for development shells, full validation, installation, and strict Doxygen generation.
Debian-style packaging support via packaging/deb/build_deb.sh, including staged installs and .deb generation for Debian-family x86 and ARM systems such as Raspberry Pi OS.
Installed project documentation, Doxygen coverage across code and support scripts, and licensing metadata.

tspmtrewrite now documents and implements the transport signaling actually used by this repository: KLV is carried as stream_type 0x06 with registration_descriptor KLVA plus metadata_descriptor (0x26) for practical GStreamer tsdemux compatibility.
SRT examples and guides were aligned with the live configuration that decodes reliably in practice: mpegtsmux alignment=7, srtsrc blocksize=1316, and latency=125.

verify_ts_klv.py now accepts both legacy 0x15 captures and the current 0x06 + KLVA signaling used by this repository.
The TS readers tolerate real-world tsdemux behavior where KLV may arrive without the full MISB UL in the demuxed payload, and rebuild the expected KLV buffer before decoding.
The installed-plugin validation path now covers clean-registry discovery so blacklist and stale-registry issues can be reproduced and checked explicitly.

Meson gst-check suites cover the four public elements plus KLV and TS support libraries.
Smoke coverage includes Python TS roundtrip, UDP loopback, staged installed-plugin discovery with a clean GStreamer registry, and C++ TS roundtrip when cmake is available.
Validation helpers also run Python syntax checks, shell syntax checks, and strict Doxygen generation so the release can be checked end to end with a single command.