ytLlive — Third-Party Notices ================================ ytLlive is a paid, closed-source product. This file lists every third-party component the product distributes or downloads, its license, and where to get its source, so the LGPL/BSD/MIT obligations are met. Distribution obligations are NOT optional: they attach because this product ships or automates the download of these components. If this file changes, update it here AND in the app's About screen (it opens this file). See TASKS.md (TASK 4) and ai.md ("Licensing — do not violate") for the guardrails — the "never do" list is there on purpose. -------------------------------------------------------------------------------- 1. FFmpeg (dynamic libraries + ffmpeg.exe, LGPL v2.1+) Copyright (c) 2000-2026 the FFmpeg developers License: GNU Lesser General Public License v2.1 or later Home: https://ffmpeg.org/ Source: https://git.ffmpeg.org/ffmpeg.git Used as: the streaming encoder/RTMP subprocess. This product distributes the UNMODIFIED binaries; it never links FFmpeg into its own code (it is launched as a separate process fed raw frames over a pipe). Why LGPL (not GPL): a GPL build (e.g. gyan.dev, or BtbN's "gpl" variant) would contaminate this proprietary product. Do NOT use one. Why "shared" (not static): LGPL v2.1 §6 requires "relinkable" materials for statically-linked libraries. The shared build links dynamically, so the user can replace the DLLs — compliance is this notice plus the source offer below, with no relink material required. Compliance supplied by this product: - The license text: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html - The corresponding source / written offer to obtain it: FFmpeg source https://ffmpeg.org/download.html Exact binary https://github.com/BtbN/FFmpeg-Builds Build tag: autobuild-2026-08-09-13-03 (variant lgpl-shared) - The binaries are unmodified and the LGPL notices therein are intact. 2. BtbN FFmpeg-Builds (the exact binary this product downloads) License: MIT (build scripts + repository) — the produced binaries are covered by FFmpeg's LGPL (item 1). Home: https://github.com/BtbN/FFmpeg-Builds 3. OpenH264 (libopenh264 — the H.264 software fallback encoder) Copyright (c) 2010-2026 Cisco Systems, Inc. (and contributors) License: BSD 2-Clause + Cisco's H.264 patent grant Home: https://www.openh264.org/ Note: Cisco grants the patent license for its own H.264 implementation; it ships inside the FFmpeg build above (LGPL obligations of item 1 apply to the library; the BSD terms apply to Cisco's code). 4. SQLite (bundled via SQLitePCLRaw's e_sqlite3 native bundle) License: public domain (no rights reserved) Home: https://www.sqlite.org/ 5. Microsoft.Data.Sqlite (.NET data provider, statically linked into this app) Copyright (c) .NET Foundation and contributors License: MIT Home: https://github.com/dotnet/efcore 6. SQLitePCLRaw (raw SQLite bindings + bundles) Copyright (c) 2012-2026 Eric Sink and contributors License: Apache-2.0 Home: https://github.com/ericstj/SQLitePCLRaw 7. .NET runtime / WPF / Windows SDK projections, incl. System.Security.Cryptography.ProtectedData Copyright (c) .NET Foundation and contributors License: MIT Home: https://github.com/dotnet/ 8. Simple Icons (bundled SVG logo path data for the social bar, e.g. the mastodon/peertube/pixelfed fediverse logos) Copyright (c) Simple Icons contributors (public domain dedication) License: CC0 1.0 Universal (no rights reserved, no attribution required) Home: https://simpleicons.org/ Source: https://github.com/simple-icons/simple-icons Used as: path data compiled into the app's `SocialServiceIcons` so each social entry renders the service's real logo. CC0 imposes no obligations; it is listed here per this file's "list everything" policy. -------------------------------------------------------------------------------- MISCELLANEOUS - The full text of every license named above is available at the linked canonical locations. The v1 (GA) release MUST additionally bundle the full license texts alongside this file (a `licenses/` folder beside it, still reachable from the About screen) — TASK 4 requirement 9, a release blocker. - No warranty is expressed or implied for any third-party component.