SubVela Third-Party Notices
===========================

This project uses third-party components that remain under their own licenses.
These notices cover both components bundled directly with the Windows app and NLLB translation model artifacts used by the app.

1. FFmpeg and FFprobe
---------------------
Bundled files:
- ffmpeg.exe
- ffprobe.exe

Observed bundled version:
- ffmpeg version 8.0.1-full_build-www.gyan.dev

Observed build characteristics:
- The bundled binary reports a "full_build" from www.gyan.dev.
- The bundled binary reports "--enable-gpl" and related GPL-enabled options.
- The gyan.dev Windows builds page states that all of its builds are licensed as GPLv3.

Upstream references used for this notice:
- FFmpeg legal page: https://ffmpeg.org/legal.html
- Gyan Windows builds page: https://www.gyan.dev/ffmpeg/builds/
- Release source reference for FFmpeg 8.0.1: https://github.com/FFmpeg/FFmpeg/commit/894da5ca7d

Distribution notes:
- Include this notice file with the installer and installed application.
- Keep the FFmpeg name intact.
- If you publish a website download button for this installer, add a nearby notice that the download includes FFmpeg under GPLv3 and link users to the corresponding source location.
- If you replace ffmpeg.exe or ffprobe.exe with a different build, update this notice before distribution.

2. libmpv
---------
Bundled file:
- libmpv-2.dll

Observed bundled version metadata:
- Product name: mpv
- File version: v0.41.0-252-gc401ef9c3

Upstream references used for this notice:
- mpv copyright summary: https://raw.githubusercontent.com/mpv-player/mpv/master/Copyright
- mpv source snapshot indicated by bundled version string: https://github.com/mpv-player/mpv/commit/c401ef9c3
- Windows binary release matching the bundled version string: https://github.com/shinchiro/mpv-winbuild-cmake/releases/tag/20260304

License note:
- mpv upstream states that the mpv program is GPLv2+ by default.
- Upstream also states that libmpv can be built under LGPLv2.1+ when built without GPL-only files.
- The bundled version string matches the Shinchiro Windows release tag 20260304, but the exact binary package variant and build options used for the checked-in dll should still be recorded alongside the binary if you keep redistributing it.

Distribution notes:
- Record that the current binary came from the Shinchiro mpv-winbuild-cmake 20260304 release and keep the exact package filename with the project release notes.
- If you replace libmpv-2.dll with a tracked upstream build, update this notice with the exact download/source URL and the license that applies to that binary.

3. NLLB Translation Model and Tokenizer
--------------------------------------
Downloaded files at runtime:
- CTranslate2 model snapshot from `entai2965/nllb-200-distilled-600M-ctranslate2`
- Tokenizer files from `facebook/nllb-200-distilled-600M`

Observed upstream license metadata:
- Hugging Face model page for `entai2965/nllb-200-distilled-600M-ctranslate2`: `cc-by-nc-4.0`
- Hugging Face model page for `facebook/nllb-200-distilled-600M`: `cc-by-nc-4.0`

Upstream references used for this notice:
- CTranslate2-converted model page: https://huggingface.co/entai2965/nllb-200-distilled-600M-ctranslate2
- Base Meta model page: https://huggingface.co/facebook/nllb-200-distilled-600M
- Model paper reference: https://arxiv.org/abs/2207.04672
- CC BY-NC 4.0 license text: https://creativecommons.org/licenses/by-nc/4.0/

Usage note from the upstream model card:
- NLLB-200 is described as a research model and the model card says it is not released for production deployment.
- The model card also says it is not intended for certified translation or domain-specific translation such as medical or legal use.

Distribution and compliance notes:
- Depending on the release package, SubVela may obtain these NLLB files either by bundling them with the app or by downloading them on first use for `Local (Free)` translation.
- If you redistribute these model artifacts yourself, review and comply with the applicable CC BY-NC 4.0 terms.
- If you use SubVela in a commercial context, review whether the non-commercial restriction on the downloaded NLLB artifacts affects that use.
- If you replace the repo ids used by the app, update this notice with the exact upstream source and license.

4. No Warranty
--------------
Each third-party component is provided under its own license and without warranty to the extent allowed by that license.