FFMPEG / FFPROBE MATERIALS FOR MMD 1.1.24
Prepared 2026-09-23

These records supplement the Documentation folder in the Windows and Mac 1.1.24
downloads. They do not change the plugin, its conversion settings, or its tools.

WINDOWS
FFmpeg/FFprobe: N-126122-gca821e458a-20260813
Distributor: BtbN FFmpeg-Builds, win64 GPL static
FFmpeg source snapshot: ca821e458a
Candidate build-script checkpoint: 590a6612d7d961e9258429e501619e0b7d7cbedf
The checkpoint is associated with two upstream build runs on August 13. Exact
correspondence between either run and the shipped binaries is not established.
The original run logs and download-cache artifacts are no longer retrievable
from GitHub. Dependency-source recovery is ongoing.

MACOS
FFmpeg/FFprobe: 9.0.1-tessus, x86_64
Distributor: evermeet.cx
FFmpeg source release: 9.0.1
Version-specific external-library metadata has been retained. It is not a
complete build recipe and does not by itself establish which libraries were
linked or what patches and nested inputs were used.

SIGNING CLARIFICATION
No FFmpeg source or conversion-functionality changes were made in this pass.
The Mac executables distributed by MMD carry publisher code signatures. Code
signing changes the executable bytes, so a publisher-signed file hash must not
be represented as the original upstream unsigned-file hash. The hashes in
ffmpeg-release-evidence.json describe the actual MMD 1.1.24 released payload.
This clarifies the older build-information sentence saying the executables
were not modified; it was not a statement of byte-for-byte identity after signing.

LICENSE AND SOURCE STATUS
These configurations enable GPL and version-3 components. FFmpeg and FFprobe
are distributed under GPL version 3 or later in these configurations. Included
dependencies also retain their copyright notices and applicable licenses.
Neither configuration advertises --enable-nonfree. That observation alone is
not a complete license or codec-patent assessment.

The publicly available core source archives, configure information and build
checkpoint remain available at https://mssvideos.com/open-source/ at no charge.
They do not yet constitute verified complete Corresponding Source for every
library in the distributed executables. Recovered upstream archives are not
being described as complete merely because a download succeeded. A source
request or a notice is not a substitute for supplying required materials.

SOURCE REQUESTS
Contact support@mssvideos.com with the tool name, version and platform.
No subscription, activation code, account or proof of purchase is required.
Existing source commitments and rights under applicable licenses are unchanged.

MMD AND THIRD-PARTY RIGHTS
This collection concerns the identified third-party components. It contains no
MMD-specific plugin implementation, license-service code, signing keys, customer
data or account credentials. Independently developed MMD code and branding are
not licensed by the mere publication of this collection. Nothing in this notice
limits rights granted by the applicable open-source licenses or mandatory law.
The legal classification of the integration and separate codec-patent questions
are not resolved by this technical source inventory.

References:
https://ffmpeg.org/legal.html
https://opensource.org/license/gpl-3.0
https://github.com/BtbN/FFmpeg-Builds
https://evermeet.cx/ffmpeg/