Copyright for libplacebo source package in Nile V2.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: libplacebo
Upstream-Source: https://code.videolan.org/videolan/libplacebo

Files: *
Copyright: 2009-2016, Nicolas P. Rougier
           2013, Wessel Dankers 
           2017-2018, the mpv developers
           2018, Philip Langdale
License: LGPL-2.1+

Files: debian/*
Copyright: 2018-2022, Sebastian Ramacher
License: LGPL-2.1+

Files: demos/*.c
Copyright: 2018, the mpv developers
License: CC0

Files: src/include/libplacebo/shaders/film_grain.h
       src/shaders/film_grain_av1.c
Copyright: 2018-2019, Niklas Haas
License: LGPL-2.1+ or Expat

Files: src/format.c
Copyright: 2017-2018, the mpv developers
           2007-2016, Alexis Naveros
License: LGPL-2.1+ and Zlib

Files: src/hash.h
Copyright: 2012-2016, Jean-Philippe Aumasson
           2012-2014, Daniel J. Bernstein 
License: LGPL-2.1+ and CC0
Comment:
 The siphash implementation is licensed under CC0.

License: CC0
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License: Expat
 Permission is hereby granted, free of charge, to any person obtaining a copy
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License: LGPL-2.1+
 This library is free software; you can redistribute it and/or
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License: Zlib
 Permission is granted to anyone to use this software for any purpose,
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     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source
     distribution.