FFmpeg
======

Video Stamp uses FFmpeg (https://ffmpeg.org) to read videos and to write the stamped copy.
FFmpeg is free software licensed under the GNU Lesser General Public License version 3 or later
(LGPL-3.0-or-later).  The full license text is in LGPL-3.0.txt in this folder (the LGPLv3
incorporates the GNU GPL version 3, GPL-3.0.txt, by reference).

Build shipped with Video Stamp
------------------------------
  Version:   ffmpeg n9.0.2-28-g669f5ab083-20261016  (FFmpeg release branch 9.0, commit 669f5ab083)
  Builder:   BtbN FFmpeg-Builds, variant "win64-lgpl-shared-9.0"
             https://github.com/BtbN/FFmpeg-Builds
  License:   configured with --enable-version3 and WITHOUT --enable-gpl or --enable-nonfree;
             GPL-only libraries are disabled (--disable-libx264 --disable-libx265
             --disable-libxvid --disable-libvidstab --disable-frei0r).  `ffmpeg -L` prints the
             LGPL notice; `ffmpeg -buildconf` prints the full configuration.
  Files:     ffmpeg\ffmpeg.exe, ffmpeg\ffprobe.exe, ffmpeg\avcodec-63.dll, avdevice-63.dll,
             avfilter-12.dll, avformat-63.dll, avutil-61.dll, swresample-7.dll, swscale-10.dll
             (shared libraries, unmodified; you may replace them with your own compatible build).
  The FFmpeg license as shipped by the builder is ffmpeg\FFMPEG_LICENSE.txt.

H.264 video is encoded by the encoder built into Windows (Media Foundation) or by the graphics
card's encoder (NVIDIA NVENC, Intel Quick Sync, AMD AMF); FFmpeg's libx264 is not included.

The build also contains libraries under their own free licenses, among them FreeType (FTL),
HarfBuzz (MIT), FriBidi (LGPL-2.1), fontconfig (MIT), libxml2 (MIT), zimg (WTFPL), dav1d (BSD-2),
libvpx (BSD-3), libaom (BSD-2), libopus (BSD-3), libvorbis (BSD-3), LAME (LGPL-2.1), OpenH264
(BSD-2), libvpl (MIT), AMF and nv-codec-headers (MIT), zlib, lzma (public domain / 0BSD) and
others listed in the builder's scripts (https://github.com/BtbN/FFmpeg-Builds/tree/master/scripts.d).

Written offer for the source code
---------------------------------
The complete corresponding source code of this FFmpeg build is available:
  * FFmpeg:  https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/669f5ab083  (tag n9.0.2 and the
             release/9.0 branch), or https://github.com/FFmpeg/FFmpeg/tree/release/9.0
  * Build scripts and the exact library versions: https://github.com/BtbN/FFmpeg-Builds
For at least three years from the date you received Video Stamp, 914 Studio Group will also give
anyone who asks a complete copy of this source code (FFmpeg and the libraries it was built with)
on a common medium or by download, for no more than the cost of providing it.  Ask through
https://914studiogroup.com and mention "Video Stamp FFmpeg source".

The Video Stamp license does not restrict modifying FFmpeg or its libraries, or reverse
engineering Video Stamp to the extent needed to debug such modifications.
