Liquidsoap scripting language reference

The Source / ... categories contain all functions that return sources. The Source / Input functions are those which build elementary sources (playing files, synthesizing sound, etc.). The Source / Output functions are those which take a source and register it for being streamed to the outside (file, soundcard, audio server, etc.). The Source / Visualization functions let you visualize in real time some aspects of the audio stream. The Source / Audio processing functions are those which basically work on the source as a continuous audio stream. They would typically be mixers of streams, audio effects or analysis. Finally, Source / Track processing functions are basically all others, often having a behavior that depends on or affects the extra information that liquidsoap puts in streams: track limits and metadata. The Track / ... categories contain the equivalent functions operating on individual tracks of a source.