Subtitle Audit is proprietary H61 Apps software. It is not an FFmpeg product and the app source is not offered under the LGPL. The macOS app bundles an FFprobe helper that runs locally to inspect media and subtitle-related metadata from user-selected media files.

Packaging: Subtitle Audit ships Contents/Helpers/ffprobe only. It does not ship the ffmpeg executable. Corresponding source is still the FFmpeg 8.1.2 source package used to build that helper.

This page provides corresponding-source information for FFmpeg 8.1.2 as used by Subtitle Audit 0.1.0 for macOS arm64.

Version

• Product: Subtitle Audit 0.1.0 (macOS)
• Helper shipped: FFprobe 8.1.2 only
• Source package: FFmpeg 8.1.2
• Upstream tag: n8.1.2
• Architecture: arm64
• Deployment target: macOS 15.0
• Local FFmpeg source modifications: None

Source

• Self-hosted archive: ffmpeg-8.1.2.tar.xz
• SHA-256: 464beb5e7bf0c311e68b45ae2f04e9cc2af88851abb4082231742a74d97b524c · SHA256SUMS
• Official FFmpeg archive: ffmpeg.org/releases/ffmpeg-8.1.2.tar.xz
• Upstream tag: n8.1.2
• Source tree: FFmpeg n8.1.2
• changes.diff: no local source changes

License

The bundled FFprobe helper is distributed under LGPL v2.1 or later for this build. GPL and nonfree components are disabled. See FFmpeg legal information and the GNU LGPL 2.1 .

• LGPL-2.1.txt
• FFmpeg-LICENSE.txt
• FFmpeg-SOURCE-INFORMATION.txt

In-app notices are available from Help → Third-party Notices.

Build information

• build-info.txt
• mac-configure-flags.txt
• configure-command.txt
• FFmpeg-BUILD-CONFIGURATION.txt
• ffmpeg-build-manifest.json
• unsigned-helper-checksums.sha256 (pre-codesign ffprobe)

Unsigned staged FFprobe SHA-256: 8e8d0e7a505635cc7aae455c324371462181ba623b9e85a72f26dda39c6bb199

The helper is a separate arm64 executable installed at Contents/Helpers/ffprobe . It is not linked into the application binary. Codesigning for distribution changes Mach-O hashes; the unsigned checksum above matches the staged binary in the Subtitle Audit repository after codesign --remove-signature.

Mac helper configure flags

--prefix=/tmp/subtitleextractor-ffmpeg-h61-offline/prefix
--cc=clang
--arch=arm64
--extra-cflags='-mmacosx-version-min=15.0 -arch arm64'
--extra-ldflags='-mmacosx-version-min=15.0 -arch arm64'
--disable-gpl
--disable-nonfree
--enable-static
--disable-shared
--disable-debug
--disable-doc
--disable-htmlpages
--disable-manpages
--disable-podpages
--disable-txtpages
--disable-ffplay
--enable-ffmpeg
--enable-ffprobe
--enable-pthreads
--disable-network
--enable-protocol='file,pipe'

All FFmpeg versions · Subtitle Audit