CrabsoupA Liquidsoap-inspired audio streaming engine in Rust

Gapless playlists, crossfades, live DJ ducking, one-shot jingles — scripted in Lua, broadcast to Icecast.

.lua scripting

Real Lua with Liquidsoap-style functions — playlist, smart_crossfade, fallback, switch, rotate, jingles, mksafe, add, cue_cut, pipe and more.

Gapless crossfades

Track-to-track overlap with configurable window and fade curve, plus a level-aware smart_crossfade that picks the window from the outgoing track's tail.

Live DJ ducking

An Icecast source-protocol harbor (PUT /live). While a DJ is live the playlist ducks out, then fades back in on disconnect.

One-shot jingles

Clips played over the music, triggered from a Liquidsoap-style telnet control port (jingles.play, jingles.list).

Broadcast to Icecast

MP3 (LAME), Ogg/Opus (libopus + a built-in spec-correct Ogg muxer), and AAC/ADTS (fdk-aac) via a native source-protocol client.

Dead-air safe

blank.detect silence guarding with fallback handover, mksafe never-fails sources, and request queues with retry and timeout.