FFmpeg / ffprobe license identification

The bundled ffmpeg and ffprobe binaries for Subtitle Extractor are built by H61 Apps
from the official FFmpeg 8.1.2 source release using the reproducible scripts in:

  scripts/tools/

Configuration intentionally omits:
  --enable-gpl
  --enable-nonfree
  libx264
  libx265
  other GPL-only external libraries

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

The application invokes ffmpeg and ffprobe as separate helper executables.
They are not linked into the application binary as a shared library.

Upstream FFmpeg project: https://ffmpeg.org
Build provider: H61 Apps reproducible LGPL build