Open-Source Components

Haoyong Video is closed-source software that uses the open-source libraries below, shipped unmodified as separate dynamic libraries inside the app. Your rights under their licenses, including the right to modify and replace the LGPL libraries, are not limited by our license agreement (§3).

Corresponding source

The original upstream archives with checksums, the exact build scripts and flags, the license texts, and instructions for replacing a library in the app. Because of the website's file-size limit the archive comes in parts; join them after downloading:

Join and verify

cat HaoyongVideo-1.0.0-open-source-components.tar.gz.part* > HaoyongVideo-1.0.0-open-source-components.tar.gz
shasum -a 256 HaoyongVideo-1.0.0-open-source-components.tar.gz   # 5e8ca2f12d89165aff7d228484794b1a8d104e273db0abb9d07f1a41ad094e70

Copies on physical media on request from [email protected], for no more than the cost of supplying them, for at least three years after this version was last distributed.

Components in version 1.0.0

ComponentVersionLicense
mpv (libmpv)0.41.0LGPL-2.1-or-later
FFmpeg (libavcodec, libavformat, libavutil, libavfilter, libswresample, libswscale)9.0.2LGPL-2.1-or-later
libplacebo7.387.0LGPL-2.1-or-later
FriBidi1.0.18LGPL-2.1-or-later
libass0.17.5ISC
FreeType (with bundled zlib 1.3.1)2.15.0FreeType License (FTL); zlib: Zlib
HarfBuzz15.0.0MIT
dav1d1.5.4BSD-2-Clause
fast_float (in libplacebo)8.3.3MIT / Apache-2.0 / BSL-1.0
glad-generated OpenGL loader (in libplacebo)2.0.8(WTFPL or CC0-1.0) and Apache-2.0
Vulkan-Headers (types only, in libplacebo)1.4.363.0Apache-2.0

This software is based in part on the work of the Independent JPEG Group (IJG-derived DCT code in FFmpeg's libavcodec, as adapted by the FFmpeg project).

Portions of this software are copyright © 2026 The FreeType Project (https://freetype.org). All rights reserved.

Full notices and license texts are also inside the app: Haoyong Video › Acknowledgements.