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THIRD_PARTY_NOTICES.md

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+# Third-party code
+
+## pl_mpeg
+
+`host/src/movie/pl_mpeg2.h` is pl_mpeg by Dominic Szablewski
+(https://github.com/phoboslab/pl_mpeg), extended here for MPEG-2. It is under the MIT licence below.
+
+The MPEG-2 coefficient table B.15 and the run/level order in that file are
+data from ISO/IEC 13818-2, cross-checked against FFmpeg's
+`libavcodec/mpeg12data.c`.
+
+### pl_mpeg licence (MIT)
+
+Copyright (c) Dominic Szablewski - https://phoboslab.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+## jak-project's 989snd (ISC)
+
+`host/src/rac1/snd989.c` and `host/src/rac1/snd989_tables.h` (the host's
+989snd IOP driver) follow the jak-project's reimplementation of 989snd
+(https://github.com/open-goal/jak-project, `game/sound/989snd` and
+`game/sound/common`, by Ziemas) for the sound-effect grain semantics, the LFOs,
+the volume and pan rules (MakeVolume, AdjustVolToGroup), the note-to-pitch
+conversion, and they take from it the note pitch table, the pan table and the
+SPU's Gaussian interpolation table. Those files are under the ISC licence:
+
+Copyright (c) 2021-2024 Ziemas
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+The SPU2 reverb in the same file is written from the hardware's formula as
+documented in nocash's psx-spx; its preset register values are the PlayStation
+sound library's effect modes.