# Third-party notices PocketTracker is distributed under **GPL-3.0-or-later** (see `LICENSE` at the repo root). It statically links the components below, so **their notices travel with the binary**, not merely with the source tree that built it. A user who receives only the artifact must still receive these. This file is the single source of truth for the notices and is shipped verbatim in: - the **PortMaster zip** → `pockettracker/licenses/THIRD-PARTY-NOTICES.md` (`shell/build-portmaster.sh`) - the **Windows zip** → `licenses/THIRD-PARTY-NOTICES.md` (`shell/build-windows.ps1`) - the **Linux tarball** → `licenses/THIRD-PARTY-NOTICES.md` (`shell/build-linux.sh`) - the **Miyoo Mini zip** → `Roms/PORTS/Games/PocketTracker/licenses/THIRD-PARTY-NOTICES.md` (`shell/build-miyoo.sh`) - the **APK** → `assets/licenses/THIRD-PARTY-NOTICES.md` (`app/build.gradle.kts`, `stageLicenseAssets`) - the **repo** → `licenses/THIRD-PARTY-NOTICES.md` ⚠️ **Scope: what a recipient of a BINARY must receive** — which is a wider set than "what is statically linked into the engine", and the difference is where the gaps kept being found. Most of this file is the engine, i.e. what ships in *both* the APK and the Linux port. Three entries are not: | Not engine-compiled | Why it is here anyway | Where it ships | |---|---|---| | Liberation Sans (font asset) | The OFL requires its licence to accompany the font | wherever `assets/fonts/` travel | | Oboe, the AndroidX libraries | Apache-2.0 §4(a) requires supplying a *copy of the License* | the APK only | | Steinberg ASIO SDK | Compiled into the Windows shell only (SETTINGS > AUDIO OUT) | the Windows zip only | **Naming a licence is not supplying one.** `CREDITS.md` attributes everything the project builds on and is the right place for "what is this and who wrote it", but a licence whose terms demand that the text accompany the binary cannot be discharged by a citation — so the text lives here, in the file that ships in every artifact. `CREDITS.md` ships beside it for the attribution half. ⚠️ **When you vendor a new library, add it here in the same commit.** The build asserts this file is present in the artifact, but no automated check can know a component was *added* — that part is a habit, not a guard. --- ## Steinberg ASIO SDK — GPL-3.0 (its GPLv3 option) and BSD-3-Clause Used for: the ASIO audio output on Windows (`native/vendor/asio/`). `common/asio.cpp` and the `common/` headers are used under the SDK's **GPLv3** licence option (`native/vendor/asio/LICENSE.txt`); PocketTracker's own licence is GPL-3.0-or-later, so the combined Windows binary is distributed under GPL-3.0. `host/asiodrivers.*` and `host/pc/asiolist.*` carry the BSD-3-Clause notice below. ASIO is a trademark and software of Steinberg Media Technologies GmbH. ``` (c) 2025, Steinberg Media Technologies GmbH, All Rights Reserved Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the Steinberg Media Technologies nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ``` ## KissFFT — BSD-3-Clause Used for: FFT behind the spectrum analyzer and the transient detector (`native/kissfft/`). > ⚠️ **The vendored copy of KissFFT arrived with its notice stripped** — no copyright line existed in > any of the five files. BSD-3-Clause requires the notice be retained in **source** redistributions > and reproduced in **binary** ones, so both the header banner (restored in `native/kissfft/*`) and > this section are obligations, not courtesies. Copyright line and SPDX identifier taken from > upstream `COPYING` (github.com/mborgerding/kissfft). ``` Copyright (c) 2003-2010 Mark Borgerding. All rights reserved. SPDX-License-Identifier: BSD-3-Clause Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ``` --- ## DaisySP — MIT **and** LGPL-2.1 (mixed; see the split below) Used for: SVF filter, overdrive, decimator/bitcrush, limiter, compressor, crossfade, balance, ReverbSc (`native/effects/primitives/daisysp/`). ⚠️ **DaisySP is not uniformly MIT, and the files PocketTracker compiles land on both sides.** Three of the eight are LGPL-2.1 because they descend from Csound and Faust/GRAME rather than from Electrosmith's own code. Verified by reading the banner of each compiled file: | File | Licence | Copyright | |---|---|---| | `svf` | MIT | (c) 2020 Electrosmith, Corp | | `overdrive` | MIT | (c) 2020 Electrosmith, Corp, Emilie Gillet | | `decimator` | MIT | (c) 2020 Electrosmith, Corp | | `limiter` | MIT | (c) 2020 Electrosmith, Corp, Emilie Gillet | | `crossfade` | MIT | (c) 2020 Electrosmith, Corp, Paul Batchelor | | **`compressor`** | **LGPL-2.1** | (c) 2023 Electrosmith, Corp, GRAME, Centre National de Creation Musicale | | **`balance`** | **LGPL-2.1** | (c) 2023 Electrosmith, Corp, Barry Vercoe, john ffitch, Gabriel Maldonado | | **`reverbsc`** | **LGPL-2.1** | (c) 2023 Electrosmith, Corp, Sean Costello, Istvan Varga, Paul Batchelor | **On the LGPL-2.1 three:** PocketTracker as a whole is GPL-3.0-or-later. LGPL-2.1 **§3** expressly permits applying "the ordinary GNU General Public License" version 2 "or any later version" to a given copy of the library, so these three are distributed here under **GPL-3.0-or-later**, and the `LICENSE` text shipped beside this file is their governing text. There is no compatibility problem, but the attribution above is required. The conversion is recorded in `DaisySP-GPL-CONVERSION.txt`. The governing source-header notices of the converted copies now name GPL-3.0-or-later consistently. The retained, unused `bitcrush` header is converted in the same way; this does not add it to the compiled engine. The five MIT files are covered by the MIT text below. ``` MIT License Copyright (c) Electrosmith, Corp and the contributors named per-file above 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. ``` --- ## TinySoundFont (tsf) — MIT Used for: SF2 / SoundFont2 synthesis, with a per-channel rendering fork (`native/vendor/tsf/`). Notice as carried in `tsf.h`. ``` Copyright (C) 2017-2025 Bernhard Schelling Based on SFZero, Copyright (C) 2012 Steve Folta (https://github.com/stevefolta/SFZero) 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. ``` --- ## Soundpipe (pareq) — MIT Used for: the parametric-EQ biquad (`native/effects/soundpipe/pareq.c`), a stub extracted from Soundpipe by Paul Batchelor (https://github.com/PaulBatchelor/Soundpipe). MIT text as above, copyright Paul Batchelor. --- ## skoomaDust — GPL-3.0-or-later (includes APComp, BSD-3-Clause) Used for: the lo-fi DUST effect chain (`native/effects/modules/dust-chain.{h,cpp}`), contributed by [@skoomabwoy](https://github.com/skoomabwoy/skoomaDust). Same licence as PocketTracker itself (GPL-3.0-or-later) — `LICENSE` is the governing text. It embeds the **APComp** FET compressor by **Alain Paul / AP Mastering**, under **BSD-3-Clause**; the copyright is preserved in `dust-chain.cpp`. BSD-3-Clause text as in the KissFFT section above, substituting that copyright holder. --- ## Dragonfly Reverb — GPL-3.0-or-later, and Freeverb3 — GPL-2.0-or-later Used for: the HALL, ROOM, PLATE and FOIL reverb algorithms (`native/effects/primitives/dragonfly/`). The algorithms are adapted from the **Dragonfly Reverb** plugins, copyright © 2018-2019 Michael Willis and Rob van den Berg (https://github.com/michaelwillis/dragonfly-reverb), under **GPL-3.0-or-later**; the governing text is `native/effects/primitives/dragonfly/LICENSE-dragonfly`, the same text as PocketTracker's own `LICENSE`. They run on a subset of **Freeverb3**, copyright © 2006-2018 Teru Kamogashira, based on Freeverb, copyright © 2000 Jezar at Dreampoint, under **GPL-2.0-or-later**, used here under GPL-3.0. The files are in `native/effects/primitives/dragonfly/freeverb/`, each with its copyright notice, and `freeverb/AUTHORS` lists the authors of the algorithms it draws on. PocketTracker modifies some of them; each modified file says so in its header. --- ## dr_libs — dr_mp3 / dr_flac — public domain **or** MIT-0 (dual, at your option) Used for: native MP3 and FLAC decoding (`native/vendor/dr_mp3/`, `native/vendor/dr_flac/`). By David Reid (mackron). Both files carry the full dual-licence statement at the end of the header; PocketTracker exercises no option and redistributes them unchanged. --- ## stb_vorbis — public domain **or** MIT (dual, at your option) Used for: native OGG Vorbis decoding (`native/vendor/stb_vorbis/stb_vorbis.c`). Copyright (c) 2017 Sean Barrett. The full dual-licence statement is at the end of that file. --- ## FAAD2 (libfaad) — GPL-2.0-or-later Used for: native AAC decoding of ISO-BMFF container samples — `.m4a` / `.mp4` / `.m4b` / `.mov` / `.3gp` (`native/vendor/faad2/`, upstream https://github.com/knik0/faad2, version 2.11.2; see `native/vendor/faad2/PT-VENDORING.md`). Copyright © the FAAD2 authors (see `native/vendor/faad2/AUTHORS` upstream); the governing text is `native/vendor/faad2/COPYING`. **GPL-2.0-or-later**, and that is a deliberate choice, not an accident: it is **why FAAD2 was picked over fdk-aac**, whose licence the FSF considers GPL-incompatible. GPL-2.0-**or-later** may be used under GPL-3.0, so it is compatible with PocketTracker's own GPL-3.0 licence (`LICENSE`). FAAD2 is **statically linked into the `pockettracker` engine library**, so it ships in **every** artifact — the APK, the PortMaster zip and the Windows zip alike. As with all of PocketTracker, complete corresponding source is available under the project's GPL-3.0 terms. `COPYING` additionally states that non-GPL use requires a separate commercial licence from the authors; PocketTracker's use is GPL, so that clause does not apply here. --- ## minimp4 — CC0-1.0 / public domain Used for: demuxing the ISO-BMFF container (the box parsing that feeds FAAD2 above) — `native/vendor/minimp4/minimp4.h`, a single-header library by lieff (upstream https://github.com/lieff/minimp4; see `native/vendor/minimp4/PT-VENDORING.md`). Dedicated to the public domain under CC0-1.0; the full dedication is in the header comment. Only the demuxer is used (the muxer half is dropped by the linker). Statically linked into the `pockettracker` engine library, so it ships in every artifact; CC0 carries no reproduce-in-binary obligation, but the notice is recorded here regardless — the same rule every vendored component follows. --- ## stb_image — public domain **or** MIT (dual, at your option) Used for: decoding the touch-skin, CRT-overlay and theme PNGs (`native/vendor/stb_image/stb_image.h`, v2.30). Copyright (c) 2017 Sean Barrett. The full dual-licence statement is at the end of that file. ⚠️ **Shell-side, not in the engine** — the same footnote the SDL2 section carries. `stb_image` is compiled into the SDL *shell* (`shell/skin/image.cpp`), so it ships in **every** artifact — the **PortMaster** and **Windows** packages, and the APK's SDL-app `.so`. It is **not** linked into the `pockettracker` engine library, but every artifact runs the shell, so that distinction does not change what is distributed. It is under `native/vendor/` only because that is where the licence guard looks; see `native/vendor/stb_image/PT-VENDORING.md`. The dual grant carries no reproduce-in-binary obligation (the public-domain arm has no conditions at all), but the notice is recorded here regardless — the same rule every vendored component follows. --- ## stb_truetype — public domain **or** MIT (dual, at your option) Used for: rasterizing the PORTRAIT2 device skin's button-label glyphs from Liberation Sans (`native/vendor/stb_truetype/stb_truetype.h`, v1.26). Copyright (c) 2017 Sean Barrett. The full dual-licence statement is at the end of that file. ⚠️ **Shell-side, not in the engine** — the same footnote stb_image carries. `stb_truetype` is compiled into the SDL *shell* (`shell/skin/font_raster.cpp`), so it ships in **every** artifact — the **PortMaster** and **Windows** packages, and the APK's SDL-app `.so`. It is **not** linked into the `pockettracker` engine library, but every artifact runs the shell, so that distinction does not change what is distributed. It is under `native/vendor/` only because that is where the licence guard looks; see `native/vendor/stb_truetype/PT-VENDORING.md`. The dual grant carries no reproduce-in-binary obligation (the public-domain arm has no conditions at all), but the notice is recorded here regardless — the same rule every vendored component follows. --- ## nlohmann/json — MIT Used for: parsing `.ptp` / `.pti` project and instrument JSON (`native/vendor/nlohmann/json.hpp`, v3.11.3). Copyright (c) 2013-2022 Niels Lohmann. `SPDX-License-Identifier: MIT` is carried throughout the header; MIT text as above. --- ## libogg — BSD-3-Clause Used for: Ogg container parsing under Opus/Vorbis (`native/vendor/ogg/`). Copyright (c) 2002, Xiph.org Foundation. **Full text ships separately** as `licenses/libogg-COPYING` (copied verbatim from `native/vendor/ogg/COPYING`). --- ## libopus — BSD-3-Clause Used for: native Opus decoding (`native/vendor/opus/`). Copyright (c) 2001-2011 Xiph.Org, Skype Limited, Octasic, Jean-Marc Valin, Timothy B. Terriberry, CSIRO, Gregory Maxwell, Mark Borgerding, Erik de Castro Lopo. **Full text ships separately** as `licenses/libopus-COPYING` (copied verbatim from `native/vendor/opus/COPYING`), alongside `libopus-LICENSE_PLEASE_READ.txt`, which is upstream's patent/licensing note and is **not optional reading** despite the name. --- ## opusfile — BSD-3-Clause Used for: Opus stream/file decoding on top of libopus (`native/vendor/opusfile/`). > ⚠️ **The vendored copy of opusfile does not include its `COPYING`** — every source file says the > work is "GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE", and that file was not > carried across when the library was vendored. The notice below reproduces upstream's > (github.com/xiph/opusfile) so the pointer in those headers resolves to something. ``` Copyright (c) 1994-2013 Xiph.Org Foundation and contributors Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name of the Xiph.Org Foundation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ``` --- ## SDL2 — zlib licence (**shipped on Windows and in the APK**, linked-not-shipped on the handhelds) ⚠️ **The answer differs per artifact**, so "does PocketTracker ship an SDL2 binary?" has no single answer — and the question that binds is always about the thing a user actually receives, not about the source tree. | artifact | how SDL2 is linked | ships an SDL2 binary? | |---|---|---| | **PortMaster zip** (`shell/build-portmaster.sh`) | dynamically, against the **device's own** `libSDL2-2.0.so.0` — the copy its CFW patched for that hardware's display and audio | **no** (the build asserts `libs.aarch64` is absent) | | **Windows zip** (`shell/build-windows.ps1`) | **statically, into `PocketTracker.exe`** — a Windows box has no system SDL2, so `shell/CMakeLists.txt` falls through to FetchContent | **yes — inside the exe** | | **APK** | **dynamically, against a `libSDL2.so` built from the vendored source** (`native/vendor/SDL2/`) and packaged in the APK — F-Droid builds offline from source and rejects prebuilts, so Android is the one target that carries SDL in-tree | **yes — `lib//libSDL2.so`, one per ABI** | | **Miyoo/OnionOS zip** (`shell/build-miyoo.sh`) | dynamically, against a **prebuilt `mmiyoo` fork we bundle** — this device has no system SDL2 at all, so the PortMaster row's rule inverts and the build asserts `libs/` is **present** | **yes — `libs/libSDL2-2.0.so.0`**, and see the fork's own section below | So the Windows package carries the notice below, and `build-windows.ps1` copies it out of the SDL source tree that was actually compiled (`_deps/sdl2-src/LICENSE.txt`) rather than from a stale copy in this repo — the licence that ships is then the licence of the code that shipped, by construction. ⚠️ **On the APK's obligation specifically:** zlib's three conditions bind *source* distributions (clause 3 is "may not be removed or altered from any **source** distribution"); unlike the BSD-3-Clause components in this file, it imposes no reproduce-in-binary-form requirement. So shipping `libSDL2.so` in the APK adds no obligation beyond the notice recorded here. The APK carries this file, `LICENSE`, `CREDITS.md` and the OFL texts as `assets/licenses/`; no in-app screen displays them. Stated rather than assumed, because "we now ship one more library" is the kind of change that looks like it must have made a compliance problem worse. ⚠️ **The vendor-directory guard covers SDL2 on one side only.** `build-portmaster.sh` derives its component list from `native/vendor/*/` precisely so that vendoring a library and forgetting its notice fails the build, and `native/vendor/SDL2/` is in the tree, so the derived guard covers it — including, over-inclusively, in the PortMaster zip, which links SDL rather than shipping it (see the note at that loop). **The Windows build is the exception**: it takes its SDL from FetchContent, not from `native/vendor/`, so the derived guard is structurally blind there and `build-windows.ps1` checks for the SDL notice **by name**. Used for: window, renderer, audio output, gamepad and keyboard input — the whole of `shell/`, on every platform including Android. **Two versions, deliberately** — different linkage models get different version policies: | | version | why | |---|---|---| | Android (vendored, `native/vendor/SDL2/`) | **2.30.9** (`release-2.30.9`, commit `c98c4fbf`) | the APK bundles its own, so it should carry a current 2.x | | Windows (FetchContent pin, `shell/CMakeLists.txt`) | **2.30.9** | built from source into the exe | | PortMaster (`SDL2_TAG`, the *link floor*) | **2.0.18** | ports are expected to link the CFW's own libSDL2; this is the compatibility floor they are built against, not a copy we ship | | Miyoo/OnionOS (`SDL2_TAG`, the *shipped binary*) | **2.0.20**, the `mmiyoo` fork — see below | not a floor but the exact build that ships, so it is pinned to one tag | ``` Copyright (C) 1997-2024 Sam Lantinga This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be 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. ``` --- ## SDL2 `mmiyoo` fork — GPL-3.0 (**Miyoo/OnionOS package only**) `XK9274/sdl2_miyoo`, the SDL 2.0.20 fork carrying video (`MI GFX`), audio (`MI AO`), joystick and haptic drivers for the SigmaStar SSD202D. Shipped as `libs/libSDL2-2.0.so.0` in the OnionOS package and **nowhere else** — that device has no system SDL2, so unlike every other handheld artifact this one carries the binary. The fork's tree holds two licence files and both ship, because they cover different halves of it: | file in the fork | ships as | covers | |---|---|---| | `LICENSE.txt` | `licenses/libSDL2-zlib-LICENSE.txt` | upstream SDL2, zlib, © 1997-2022 Sam Lantinga | | `LICENSE` | `licenses/libSDL2-miyoo-fork-GPL-3.0.txt` | the fork as distributed, GPL-3.0 | PocketTracker is GPL-3.0 itself, so linking against a GPL-3.0 library raises no compatibility question. `build-miyoo.sh` copies both texts **out of the fork's own tree at the pinned tag**, so what ships is the licence of the code that shipped. ⚠️ **THE `libneonarmmiyoo.so` BESIDE IT IS NOT A THIRD-PARTY COMPONENT — IT IS OURS.** The fork resolves 25 symbols from a library of that name (`neon_memcpy` and 24 integer scalers) and lists it as a `DT_NEEDED`, so the package cannot start without a file of that name defining every one of them. The one the fork's own release carries cannot be redistributed: its repository (`XK9274/neon-arm-library-miyoo`) has no licence file at all and its README states that the maintainer did not write the source and does not know its origin, which leaves it under default copyright. What ships instead is `shell/miyoo/neon_compat.c`, PocketTracker's own plain-C implementation of the same 25 entry points, covered by the GPL-3.0 in `licenses/LICENSE` with everything else of ours. Nothing from that repository is in the package. --- ## Liberation Sans and Liberation Mono — SIL Open Font License 1.1 Used for: the labels on the PORTRAIT2 touch skin's virtual buttons — "A", "B", "Sel", "Start", "L Shift", "R Shift" and the D-pad arrows (`app/src/main/assets/fonts/LiberationSans-Regular.ttf`, the unmodified 2.1.5 release file). Studio also uses Liberation Mono Bold for the embedded 10/15-pixel UI raster in `native/ui/font_hd.h`. The unmodified source font is `app/src/main/assets/fonts/LiberationMono-Bold.ttf`, SHA-256 `bd62a0672d0b9b6710b01df434c80ad54fa5f0835207eb7b17b7a761463067bb`. The reproducible CoreText raster generator is `tests/studio/fontgen.cpp`. The Sans font is also rasterized into `native/ui/font_ui.h` for proportional 12/18-pixel interface labels; `tests/studio/fontgen_ui.cpp` reproduces those glyphs. The Sans source is a bundled asset. Both Sans and Mono rasters are compiled into every Studio artifact, and the same OFL notice applies to that raster. The source fonts travel with the app's `assets/`: the **APK** for certain, and any desktop/handheld build that bundles `assets/fonts/`. Documented here (the single source of truth for shipped notices) rather than in `CREDITS.md`, because the OFL requires its licence to accompany the font in binary distributions — the full licence text is `licenses/OFL-1.1-LiberationSans.txt`. ``` Digitized data copyright (c) 2010 Google Corporation with Reserved Font Arimo, Tinos and Cousine. Copyright (c) 2012 Red Hat, Inc. with Reserved Font Name Liberation. This Font Software is licensed under the SIL Open Font License, Version 1.1. Full text: licenses/OFL-1.1-LiberationSans.txt (and http://scripts.sil.org/OFL). ``` --- ## QuinqueFive — SIL Open Font License 1.1 Used for: fallback symbols and text sizes outside Studio's 10/15-pixel raster. The 5×5 bitmap font table (`native/ui/font5x5.h`) is adapted from QuinqueFive by GGBotNet, with some glyphs redrawn — a Modified Version under the OFL, so it does not carry the Reserved Font Name. ⚠️ **Unlike the font asset above, it is compiled into the program**, so its notice and licence ship in **every** artifact. ``` Copyright © 2019-2025 GGBotNet (https://ggbot.net), with Reserved Font Name "QuinqueFive". This Font Software is licensed under the SIL Open Font License, Version 1.1. Full text: licenses/OFL-1.1-QuinqueFive.txt (and http://scripts.sil.org/OFL). ``` --- ## Oboe and AndroidX — Apache-2.0 (**APK only**) Used for: Oboe is the low-latency Android audio stream (`native/` links it behind `if(ANDROID)`); `androidx.core:core-ktx` handles window insets and `androidx.core:core-splashscreen` the Android 12+ splash screen, both in the launcher activity. ⚠️ **Four AndroidX artifacts reach the APK, not the two `app/build.gradle.kts` names** — `core-ktx` drags in `androidx.core:core` and `androidx.core:core-viewtree` transitively. All four are Apache-2.0 under the same copyright, so one copy of the text covers them; the count is recorded because "what we declared" and "what we shipped" are different questions, and only the second one binds. ⚠️ **These are resolved by Gradle, not compiled from `native/`** — they exist only in the APK, and no Linux, Windows or PortMaster artifact contains a byte of them. They are listed in `CREDITS.md` with everything else the project builds on. ⚠️ **They are recorded HERE as well because naming a licence is not supplying one.** Apache-2.0 §4(a) requires that a redistributor "give any other recipients of the Work or Derivative Works a copy of this License" — an obligation `CREDITS.md` cannot discharge by citing it. This is the same reason the Liberation Sans font is documented here rather than there: the scope of this file is *what a recipient of a binary must receive*, which is a wider set than *what is statically linked*. ⚠️ **The AndroidX AARs do carry `META-INF/androidx/…/LICENSE.txt`, and it never reached a user** — AGP strips `META-INF` when packaging, verified by `unzip -l` on the built APK: zero entries matching `META-INF/.*LICENSE`. So the dependency shipped while its licence did not, which is precisely the gap this section closes. Oboe's AAR carries no licence file at all. **None of them ships a `NOTICE` file**, so §4(d) adds no attribution addendum to reproduce alongside the text. The text below is the canonical Apache License 2.0, reproduced verbatim from `https://www.apache.org/licenses/LICENSE-2.0.txt` (sha256 `cfc7749b96f63bd31c3c42b5c471bf756814053e847c10f3eb003417bc523d30`), and verified byte-for-byte against the independent copy bundled with Android Studio. ``` Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ``` ## Public source metadata extraction NewPipe Extractor v0.27.0 (TeamNewPipe, GPL-3.0-or-later) is vendored at `vendor/newpipe-extractor`, together with Nanojson's pinned Apache-2.0 Java sources. The exact commit, archive hashes, dependency versions and Protobuf regeneration command are recorded in its `PROVENANCE.json`. Two record declarations are converted to equivalent immutable classes for Android D8 compatibility; extraction logic is unchanged. Runtime dependencies: Jsoup 1.23.2 (MIT), JSR305 3.0.2 (Apache-2.0), Protobuf Java Lite 4.36.2 (BSD-3-Clause), Rhino and Rhino Engine 1.8.1 (MPL-2.0 and the additional notices in Rhino's LICENSE), and Android's `desugar_jdk_libs_nio` 2.1.5 (GPL-2.0 with the Classpath Exception). The `NewPipe-*.txt` files beside this notice contain the corresponding full license notices and source links. They are also staged into the Android APK.