Concentus Java (Opus) — bundled source, compiled offline with the app
Upstream: https://github.com/lostromb/concentus
Commit: 3885c4e46513ef0fc81fca100189e54f1714c6ca
Source: Java/Concentus/src/main/java/org/concentus (124 files, unmodified)
Retrieved: 2026-10-31
License: LICENSE-CONCENTUS.txt (BSD-style notices also retained in each source)
Source checksums: sources.sha256; checked by scripts/common.ps1 before compilation.
Upstream describes the Java port as based on libopus 1.1.2; this is not libopus 1.5.2.
No native DLL/SO, network service, Maven download or runtime dependency is needed.
Boki profile: 16 kHz mono, 20 ms, VOIP, 24 kbit/s CBR, complexity 5, no DTX/FEC.
TCP/TLS provides ordered delivery. FEC/UDP loss recovery is not enabled.
Native Android CPU, battery and perceived quality require real-device validation.
