FFmpeg / FFprobe license identification — Subtitle Audit
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Subtitle Audit for macOS redistributes a separately bundled FFprobe helper
built by H61 Apps from the official FFmpeg 8.1.2 source release (unmodified;
no local patches) using an offline LGPL-oriented recipe.

Product packaging:
  Contents/Helpers/ffprobe only
  This application does NOT ship the ffmpeg executable, even though the FFmpeg
  source package and configure recipe can also produce ffmpeg.

Canonical staged binary in this repository:
  build/bundled-tools/ffprobe

Configuration intentionally omits:
  --enable-gpl
  --enable-nonfree
  external GPL encoder libraries (libx264, libx265, etc.)

License target for this build:
  LGPL-2.1-or-later (see LGPL-2.1.txt)

The application invokes FFprobe as a separate helper executable under
Contents/Helpers/. It is a statically linked FFmpeg tool — not linked into the
application binary as a shared library.

Upstream FFmpeg project: https://ffmpeg.org
Build provider: H61 Apps reproducible LGPL offline build
Corresponding source: https://h61apps.com/open-source/subtitle-audit/ffmpeg/8.1.2/