Liquidsoap

https://www.liquidsoap.info/docs/

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Liquidsoap is a versatile streaming language and engine designed to generate, mix, and transcode...

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### Live video with input.rtmp, fallback, and output.youtube.live.rtmp

Source: https://www.liquidsoap.info

Live video streaming setup: ingest RTMP from OBS, fallback to a playlist when no live source, and re-encode with FFmpeg (H.264/AAC) before pushing to YouTube Live.

```liquidsoap
# Take a live video feed from OBS over RTMP.  

live = input.rtmp(listen=true, "rtmp://0.0.0.0:1935/live")  

  

# Fall back to a playlist of clips when nobody is streaming.  

show = fallback([live, playlist("~/videos")])  

  

# Re-encode with FFmpeg and push it to YouTube Live.  

output.youtube.live.rtmp(  

  key="your-stream-key",  

  encoder=%ffmpeg(%video(codec="libx264"), %audio(codec="aac")),  

  show  

)  


```

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### Internet radio with playlist, rotate, crossfade, and output.icecast

Source: https://www.liquidsoap.info

A complete internet radio setup in Liquidsoap: playlists for music and jingles, a rotate operator for weighted scheduling, crossfade for smooth transitions, and output to an Icecast server with MP3 encoding.

```liquidsoap
# A complete internet radio, in a handful of lines.  

music = playlist("~/music")  

jingles = playlist("~/jingles")  

  

# Three tracks, then a jingle, on repeat.  

radio = rotate([music.{weight = 3}, jingles.{weight = 1}])  

  

# Smooth transitions between tracks.  

radio = crossfade(radio)  

  

# Stream it out to an Icecast server.  

output.icecast(%mp3, host="localhost", mount="radio", radio)  


```

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