xvc is proprietary software
From https://github.com/divideon/xvc/blob/master/LICENSE:
Copyright (C) 2017, Divideon.
Redistribution and use in source and binary form, with or without
modifications is permitted only under the terms and conditions set forward
in the xvc License Agreement. For commercial redistribution and use, you are
required to send a signed copy of the xvc License Agreement to Divideon.
Redistribution and use in source and binary form is permitted free of charge
for non-commercial purposes. See definition of non-commercial in the xvc
License Agreement.
All redistribution of source code must retain this copyright notice
unmodified.
All redistributions in binary form must include this copyright notice
in the documentation and/or other materials provided with the distribution.
The xvc License Agreement is available at https://xvc.io/license/.
From https://xvc.io/license/:
LICENSE
The xvc licence comes in three flavors: xvc free, xvc pro and xvc unlimited.
The full license agreement can be found here: xvc license r1.0.
The table below summarizes the properties of the three different xvc licenses.
xvc free xvc pro xvc unlimited
Access to xvc Yes Yes Yes
reference encoder
and xvc reference
decoder
Restricted usage Can only be used for No restrictions. No restrictions.
personal use, education,
research, standardization
and internal evaluation.
Commercial use No Yes Yes
Grant back or No No No
reciprocity requirements
Defensive suspension Yes Yes Yes
Indemnification No Yes Yes
License fee $0 $0.02 / instance and month $1,000,000 / month
Reporting of number of No Yes No
xvc instances required
Content fees No No No
An xvc instance is defined as an entity performing operations related to one or more xvc bitstreams. Such operations may include, but is not limited to;
producing/encoding xvc bitstreams, decoding xvc bitstreams, transcoding to/from xvc bitstreams, analyzing xvc bitstreams, validating xvc bitstreams,
distributing xvc bitstreams, transmitting xvc bitstreams, packing/unpacking xvc bitstreams, encrypting xvc bitstreams, fragmenting xvc bitstreams,
mulitplexing xvc bitsreams. The licenses are not limited to the specific implementations of the xvc reference software. However, the licences apply
only to the methods included in the reference software and only when used in the context of performing operations related to one or more xvc bitstreams.
The xvc pro and xvc unlimited licenses requires a signed xvc License Agreement to be sent to Divideon.
.pdf related is the license. This project is clearly non-free, not going to use it unless they relicense to something libre.
(I hope the formatting isn't fucked up, if so I give you my apologies.)