av-tools/LICENSES/README.md

Licence files

This directory records terms for third-party components and generated test data. The application itself is licensed under GPL-3.0-or-later by Albrecht Degering; the complete GNU GPL version 3 text is in the repository root LICENSE.

The root licence applies to av-tools-owned code and documentation. It does not replace or narrow the terms, copyright notices, source-delivery requirements or patent considerations of bundled third-party components.

• ffmpeg.wasm-MIT.txt is the exact MIT text from the inspected ffmpeg.wasm v12.15 source at revision 71aa99d37c02a7b4c435275ca9ef50e612f6efa1; it covers the wrapper/util source.
• GPL-2.0-or-later.txt reproduces GNU GPL version 2. The published @ffmpeg/core and @ffmpeg/core-mt 0.12.10 package manifests declare GPL-2.0-or-later; “or later” comes from those manifests. The legal code was checked against the standard GPL-2.0 text in the installed Freedesktop SDK licence corpus and the SPDX licence-list text.
• CC0-1.0.txt applies only to generated bytes under tests/fixtures/generated/; it is byte-identical to the CC0 legal code in the installed Freedesktop SDK licence corpus.
• native/ preserves the exact licence, notice and patent files from the pinned FFmpeg and linked-codec source trees. Their source revisions are recorded in scripts/ffmpeg-source-lock.json; every file was copied byte-for-byte from the corresponding source bundle.

Release packaging also copies the legal files shipped by installed runtime npm dependencies into LICENSES/npm/ inside the ZIP. See THIRD_PARTY_NOTICES.md and SOURCE.md for versions, provenance and release source-delivery requirements.