# Changelog

All notable changes to av-tools are documented here. The project follows
semantic versioning once a first release is legally publishable.

## 0.1.0 — 2026-07-24

- Scaffold a local-first React/Vite audio and video toolbox application.
- Integrate Toolbox SDK 0.2.2 for standalone and Toolbox-context operation.
- Self-host exact ffmpeg.wasm single-thread and multithread core 0.12.10
  assets; add capability detection and single-thread fallback.
- Add typed media, project, command-plan and preset foundations for conversion
  and light sequential editing.
- Wire the Edit workspace to fast and accurate trim plus compatibility-checked
  fast concat and preset-backed normalized concat with an explicit
  missing-audio policy.
- Add a bounded in-memory application queue for eight scheduled operations,
  with one FFmpeg execution at a time, progress, cleanup, cancellation and
  recovery behavior.
- Bound long-session native heap retention by refreshing the idle
  ffmpeg.wasm core before its seventeenth media execution, before a fourth
  contact sheet, and after a bare core abort, without discarding queued work or
  completed results.
- Add configurable bounded preview proxies and reuse matching derivatives from
  the local cache.
- Add storage, waveform, inspection, timeline, project, result verification
  and export workflows.
- Add deterministic generated AV fixtures, deployment examples, security and
  architecture documentation, deterministic release packaging and a temporary
  Toolbox Portal assembly smoke.
- Record a 2026-07-24 local Vitest result of 303 passing tests and one
  conditional native subtitle-filter skip.
- Exercise the real pinned ST core in Chromium across a broad conversion,
  structural-editing, analysis, image, metadata, chapter, subtitle, queue and
  recovery matrix; verify a real MT H.264/AAC conversion and MT-to-ST fallback.
- Record a pinned ST/MT Chromium performance baseline for 2-second 160×90 and
  6-second 640×360 H.264/AAC inputs. This is a one-run workstation baseline,
  not a universal performance claim.
- Record the pinned-core runtime inventory: 341 demuxers, 173 muxers, 515
  decoders, 204 encoders and 465 filters (1,698 entries).
- Verify the checksums and native probes for all 15 generated CC0 fixtures.

### Release assets

- Identify the exact reviewed GPL-3.0-or-later source with the annotated
  `v0.1.0` tag.
- Distribute the reviewed Corresponding Source and third-party notices for the
  GPL-enabled FFmpeg cores and linked codecs beside the binary. The x264 and
  LAME branch inputs are pinned to immutable commits in `SOURCE.md`.
- Browser feature/format claims beyond the recorded Chromium ST matrix and
  narrow MT H.264/AAC evidence require cross-browser and exhaustive MT runs.
- Mobile and cross-browser performance is unrecorded; the Chromium workstation
  baseline needs cold-cache repetitions and statistical ranges.