Capture audio from soundcard, stream to Shoutcast server & archive 1 minute intervals.

capture_archive_relay.liq

# Set log level
set("log.level", 4)

# Capture audio from the ALSA sound card interface
input_stream = input.alsa(device="default")

# Function to add breaks every minute
def add_breaks(~duration, s) =
  let duration = duration * 60. in
  sequence([s, blank(duration)])
end

# Add breaks every minute to the input stream
sliced_input = add_breaks(1., input_stream)

# Function to save a slice every minute
def save_slice(m) =
  timestamp = int_of_float(gettimeofday())
  filename = "/path/to/save/directory/"^timestamp^".mp3"
  output.file(%mp3, fallible=true, append=true, filename, m)
end

# On each "track" (every minute), save a slice
sliced_input = on_track(save_slice, sliced_input)

# Relay the stream to an Icecast server
output.icecast(
  %mp3,
  host = "your.icecast.server",
  port = 8000,
  password = "yourpassword",
  mount = "relay",
  input_stream
)

# Play the sliced input (this is necessary to ensure the on_track function is triggered)
output.dummy(sliced_input)