This projects is governed by the LGPLv2.1; however, the following components are governed by the licenses indicated below:

ffmpeg: LGPLv2.1
Copyright (c) 2000-2021 the FFmpeg developers

openh264: BSD 2-Clause
Copyright (c) 2013, Cisco Systems

libvpx: BSD 3-Clause
Copyright (c) 2010, The WebM Project authors. All rights reserved.

aom: BSD 2-Clause
Copyright (c) 2016, Alliance for Open Media. All rights reserved.

opus: BSD 3-Clause
Copyright 2001-2011 Xiph.Org, Skype Limited, Octasic,
                    Jean-Marc Valin, Timothy B. Terriberry,
                    CSIRO, Gregory Maxwell, Mark Borgerding,
                    Erik de Castro Lopo

vorbis: BSD 3-Clause
Copyright (c) 2002-2020 Xiph.org Foundation

theora: BSD 3-Clause
Copyright (C) 2002-2009 Xiph.org Foundation

libwebp: BSD 3-Clause
Copyright (c) 2010, Google Inc. All rights reserved.

giflib: MIT License
The GIFLIB distribution is Copyright (c) 1997  Eric S. Raymond

libjpeg_turbo: BSD 3-Clause
Copyright (C)2009-2020 D. R. Commander.  All Rights Reserved.
Copyright (C)2015 Viktor Szathmáry.  All Rights Reserved.

libogg: BSD 3-Clause
Copyright (c) 2002, Xiph.org Foundation

libpng: PNG Reference Library License version 2
 * Copyright (c) 1995-2019 The PNG Reference Library Authors.
 * Copyright (c) 2018-2019 Cosmin Truta.
 * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
 * Copyright (c) 1996-1997 Andreas Dilger.
 * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.

libtiff: libtiff License
Copyright (c) 1988-1997 Sam Leffler
Copyright (c) 1991-1997 Silicon Graphics, Inc.

gmp: LGPLv3
Copyright 1991, 1996, 1999, 2000, 2007 Free Software Foundation, Inc.

nettle: LGPLv3
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>

gnutls: LGPLv2.1
Copyright (C) 1991, 1999 Free Software Foundation, Inc.

lame: LGPLv2
 Copyright (C) 1991 Free Software Foundation, Inc.
    		    59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
(www.mp3dev.org)