av-tools/CHANGELOG.md

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.