Take mean of channels when converting to mono

node/liquidsoap.go

@@ -24,6 +24,7 @@ set("log.stdout", true)
 set("log.unix_timestamps", false)
 
 upstream = mksafe(input.http("{{.SourceURL}}", buffer=5.0))
+{{if eq .Channels 1}}upstream = mean(upstream){{end}}
 output.icecast(%{{.Format}}(samplerate={{.SampleRate}}, {{if gt .BitRate 0}}bitrate={{.BitRate}}, {{end}}{{if gt .Quality -1.0}}quality={{.Quality}}, {{end}}{{if .StereoMode}}stereo_mode="{{.StereoMode}}", {{end}}{{if eq .Channels 2}}stereo{{else}}mono{{end}}),
   mount="{{.TargetMount}}", host="{{.TargetIP}}", port={{.TargetPort}}, user="{{.TargetUsername}}", password="{{.TargetPassword}}",
   upstream)