1Copyright 2001-2011 Xiph.Org, Skype Limited, Octasic,
2                    Jean-Marc Valin, Timothy B. Terriberry,
3                    CSIRO, Gregory Maxwell, Mark Borgerding,
4                    Erik de Castro Lopo
5
6Redistribution and use in source and binary forms, with or without
7modification, are permitted provided that the following conditions
8are met:
9
10- Redistributions of source code must retain the above copyright
11notice, this list of conditions and the following disclaimer.
12
13- Redistributions in binary form must reproduce the above copyright
14notice, this list of conditions and the following disclaimer in the
15documentation and/or other materials provided with the distribution.
16
17- Neither the name of Internet Society, IETF or IETF Trust, nor the
18names of specific contributors, may be used to endorse or promote
19products derived from this software without specific prior written
20permission.
21
22THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
26OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
29PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33
34Opus is subject to the royalty-free patent licenses which are
35specified at:
36
37Xiph.Org Foundation:
38https://datatracker.ietf.org/ipr/1524/
39
40Microsoft Corporation:
41https://datatracker.ietf.org/ipr/1914/
42
43Broadcom Corporation:
44https://datatracker.ietf.org/ipr/1526/
45