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Legal Notices

The Engine stands upon the labors of the open-source ecosystem. The licenses under which those labors are granted, and the obligations the Forge keeps under them, are gathered here.

The Forge

Vox Machina Audio — the publishing Forge behind the Vox Machina USB audio engine for Android. For correspondence, address: legal@voxmachina.audio.

The Marks

Vox Machina and Vox Machina Audio are marks of the Forge. Android is a mark of Google LLC. All other product names, logos, brands, and marks named upon these pages are property of their respective holders, and are named here for identification only — no endorsement is claimed, none implied.

FFmpeg — LGPL Notice

The Engine carries FFmpeg (ffmpeg.org) as its decoder for a wide field of containers and codecs.

FFmpeg is granted under the GNU Lesser General Public License (LGPL) version 2.1 or later. The Engine links to FFmpeg dynamically — by way of shared libraries (.so) — in honor of LGPL 2.1 Section 6(b).

Libraries borne

Build configuration

The FFmpeg the Engine carries is built decode-only, LGPL-clean:

FFmpeg version: 7.1 Build flags: --disable-gpl --disable-nonfree --disable-programs --disable-doc --disable-encoders --disable-muxers --disable-devices --disable-avdevice --disable-avfilter --disable-postproc --disable-bsfs --disable-autodetect --enable-shared --disable-static --enable-small

Source and relinking

FFmpeg source is borne at ffmpeg.org/download.html.

A listener wishing to relink the Engine against a modified or updated FFmpeg may do so by:

The full text of the LGPL 2.1 is borne at gnu.org/licenses/old-licenses/lgpl-2.1.html.

libFLAC — BSD 3-Clause Notice

The Engine carries libFLAC (xiph.org/flac) for the decoding of FLAC audio, by way of a dedicated JNI bridge.

libFLAC is granted under the BSD 3-Clause License.

Copyright (C) 2000-2009 Josh Coalson Copyright (C) 2011-2024 Xiph.Org Foundation 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.

Other Rites of Acknowledgment

The Engine further rests upon the labors of the open-source ecosystem from which it draws — among them the Android Jetpack libraries, the AndroidX libraries, and the Kotlin standard library — each granted under their respective Apache 2.0 licenses. Each is acknowledged with gratitude.

Of Warranty

The Engine is offered as it stands, without warranty of any kind, expressed or implied. The Forge shall not be held to answer for damages arising from the use, or the inability to use, the software, to the fullest extent allowed by law.

To Reach the Forge

For legal correspondence — including matters of copyright or marks — address the Forge: legal@voxmachina.audio.