license: relicense first-party code from GPL-2.0-or-later to Apache-2.0

Owner sign-off: replace root LICENSE with Apache License 2.0, add a root
NOTICE file, and swap the GPL-2.0 boilerplate header in every first-party
core/ and obs-adapter/ source file for a short Apache-2.0 notice.

This resolves review finding C2 (GPLv2 top-level LICENSE vs. the vendored
Apache-2.0 LiveKit SDK is a license-compatibility violation): the whole
repo is now Apache-2.0, matching LiveKit, so there's no GPL/Apache clash
left. Updated the README Status gate and the CI workflow comment to reflect
that C2 is resolved, while leaving the C1 WebRTC/OpenH264 patent/royalty
gate untouched -- that question is still open and still blocks release.

third_party/ stays under its own upstream licenses; only this project's own
code changed hands. All 6 CTest suites still pass after the header swap.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RL8abRmgFXkVASHkkqiJbE

.gitea/workflows/build.yml

@@ -14,10 +14,11 @@ name: Build
 # workflow artifacts (actions/upload-artifact, below) -- it does not create a
 # Gitea Release, push a tag-triggered publish, or otherwise distribute
 # binaries publicly, and it must not start doing so without explicit owner
-# sign-off on the WebRTC/OpenH264 attribution and GPLv2/Apache-2.0
+# sign-off on the WebRTC/OpenH264 attribution question tracked in
-# license-compatibility questions tracked in third_party/livekit/README.md
+# third_party/livekit/README.md and the README's top-level Status section.
-# and the README's top-level Status section. If a real release/publish step
+# (The separate GPLv2/Apache-2.0 license-compatibility question is resolved:
-# is ever added here, it must carry that same gate.
+# this project's own code is Apache-2.0.) If a real release/publish step is
+# ever added here, it must carry that same gate.
 
 on:
   push:

LICENSE

@@ -1,339 +1,202 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
 
- Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
+                                 Apache License
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+                           Version 2.0, January 2004
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- of this license document, but changing it is not allowed.
 
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NOTICE

@@ -0,0 +1,4 @@
+obs-streamer-tools-plugin
+Copyright 2026 CyberCoveLLC
+
+Licensed under the Apache License, Version 2.0.

README.md

@@ -10,17 +10,22 @@ Media-Source path for directors. Full design:
 
 **Release/distribution of built binaries is blocked pending owner sign-off.**
 This plugin statically/dynamically pulls in Google WebRTC and OpenH264 code
-through the LiveKit SDK, and this repository's own top-level `LICENSE` is
+through the LiveKit SDK — a real patent/royalty question (OpenH264/WebRTC)
-GPLv2 while the vendored LiveKit binaries are Apache-2.0 — both a real patent/
+that only the project owner can decide. Nothing in this repo should be built
-royalty question (OpenH264/WebRTC) and a real license-compatibility question
+into a package and handed out, posted, or attached to a public release until
-(GPLv2 vs. Apache-2.0-linked code) that only the project owner can decide.
+that sign-off happens. See `third_party/livekit/README.md` for the specifics
-Nothing in this repo should be built into a package and handed out, posted,
+of what is and is not currently known/shipped on the licensing side. (CI in
-or attached to a public release until that sign-off happens. See
+`.gitea/workflows/build.yml` currently only builds, tests, and uploads
-`third_party/livekit/README.md` for the specifics of what is and is not
+CI-internal build artifacts — it does not create a Gitea Release or otherwise
-currently known/shipped on the licensing side. (CI in `.gitea/workflows/build.yml`
+publish anything publicly; if that ever changes, the new step must carry this
-currently only builds, tests, and uploads CI-internal build artifacts — it
+same gate.)
-does not create a Gitea Release or otherwise publish anything publicly; if
+
-that ever changes, the new step must carry this same gate.)
+The separate license-compatibility question — this repository's own top-level
+`LICENSE` was GPLv2 while the vendored LiveKit binaries are Apache-2.0, which
+are incompatible — is **resolved**: the project owner has relicensed this
+project's own first-party code to Apache-2.0, matching LiveKit. Everything in
+this repo is now Apache-2.0, so there is no remaining GPL/Apache
+incompatibility.
 
 The plugin is **functionally complete on Linux and verified end to end there**
 (module loads into real libobs, connects to a real LiveKit server through the

core/include/stplugin/api_client.h

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - streamer-tools API client
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #pragma once

core/include/stplugin/core.h

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - core library
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #pragma once

core/include/stplugin/core_c.h

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - core library
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #pragma once

core/include/stplugin/http.h

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - HTTP client interface
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #pragma once

core/include/stplugin/json.h

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - minimal JSON reader
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #pragma once

core/include/stplugin/session.h

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - LiveKit session wrapper
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #pragma once

core/include/stplugin/session_types.h

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - session types and pure session logic
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #pragma once

core/src/api_client.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - streamer-tools API client
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #include "stplugin/api_client.h"

core/src/core.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - core library
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #include "stplugin/core.h"

core/src/http_common.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - HTTP helpers shared by all backends
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #include "stplugin/http.h"

core/src/http_curl.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - libcurl HTTP backend (Linux/macOS)
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #include "stplugin/http.h"

core/src/http_winhttp.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - WinHTTP backend (Windows)
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 // WinHTTP rather than libcurl on Windows: it ships with the OS, does TLS

core/src/json.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - minimal JSON reader
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #include "stplugin/json.h"

core/src/session.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - LiveKit session wrapper
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #include "stplugin/session.h"

core/src/session_types.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - session types and pure session logic
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #include "stplugin/session_types.h"

core/tests/loopback_server.h

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - minimal loopback HTTP server for tests
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #pragma once

core/tests/test_api_client.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - API client tests
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 // Two layers of coverage:

core/tests/test_core.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - core library tests
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 // NOTE on why this file uses ST_ASSERT and not assert(): CI builds Release,

core/tests/test_integration_livekit.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - LiveKit end-to-end integration test
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 // The one test that proves the session wrapper actually receives media.

core/tests/test_json.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - JSON reader tests
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #include <string>

core/tests/test_livekit_smoke.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - LiveKit SDK link smoke test
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 // Proves the pinned client-sdk-cpp release is genuinely linked and callable:

core/tests/test_session.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - session wrapper tests
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 // What is and is not covered here, stated plainly because it matters:

core/tests/test_util.h

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin - minimal test harness
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #pragma once

obs-adapter/src/plugin-main.cpp

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 // The thin glue layer, per the design doc: source registration, the

obs-adapter/src/plugin-support.c.in

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 /* Adapted from obsproject/obs-plugintemplate (commit 3e7d7ac,

obs-adapter/src/plugin-support.h

@@ -2,18 +2,11 @@
 streamer-tools OBS Camera Plugin
 Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>
 
-This program is free software; you can redistribute it and/or modify
+Licensed under the Apache License, Version 2.0 (the "License");
-it under the terms of the GNU General Public License as published by
+you may not use this file except in compliance with the License.
-the Free Software Foundation; either version 2 of the License, or
+You may obtain a copy of the License at
-(at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+    http://www.apache.org/licenses/LICENSE-2.0
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 /* Adapted from obsproject/obs-plugintemplate (commit 3e7d7ac,

third_party/livekit/README.md

@@ -8,7 +8,8 @@ module — so the SDK's licence and notice files ship with it.
 `LICENSE` and `NOTICE` here are copied verbatim from the pinned release tag
 `v1.10.1` (Apache License 2.0). They are staged into `build/package/licenses/`
 by `obs-adapter/CMakeLists.txt` on every build, alongside this plugin's own
-GPL-2.0 `LICENSE`.
+Apache-2.0 `LICENSE` (this project's own first-party code was relicensed from
+GPL-2.0 to Apache-2.0 to match).
 
 ## A correction to the design doc