diff --git a/Dockerfile b/Dockerfile index 5e9e0ca..f22679b 100644 --- a/Dockerfile +++ b/Dockerfile @@ -27,8 +27,7 @@ RUN apt-get update && \ libpulse-dev \ apulse \ ffmpeg \ - liquidsoap \ - liquidsoap-plugin-all + liquidsoap # Clone the boatbod op25 repository RUN git clone -b gr310 https://github.com/boatbod/op25 /op25 @@ -39,6 +38,13 @@ WORKDIR /op25 # Run the install script to set up op25 RUN ./install.sh -f +# Update the liquid file +COPY op25.liq /op25/op25.liq + +# Enable the liquidsoap service +COPY op25-liq.service /etc/systemd/system +RUN systemctl enable op25-liq + # Install Python dependencies COPY requirements.txt /tmp/requirements.txt RUN pip3 install --no-cache-dir -r /tmp/requirements.txt diff --git a/op25-liq.service b/op25-liq.service new file mode 100644 index 0000000..db8d3ff --- /dev/null +++ b/op25-liq.service @@ -0,0 +1,15 @@ +[Unit] +Description=op25-liq +After=syslog.target network.target nss-lookup.target network-online.target +Requires=network-online.target + +[Service] +User=1000 +Group=1000 +WorkingDirectory=/op25/op25/gr-op25_repeater/apps +ExecStart=/usr/bin/liquidsoap op25.liq +RestartSec=5 +Restart=on-failure + +[Install] +WantedBy=multi-user.target \ No newline at end of file diff --git a/op25.liq b/op25.liq new file mode 100644 index 0000000..69a5294 --- /dev/null +++ b/op25.liq @@ -0,0 +1,54 @@ +#!/usr/bin/liquidsoap + +# Example liquidsoap streaming from op25 to icecast +# (c) 2019-2021 gnorbury@bondcar.com, wllmbecks@gmail.com +# + +set("log.stdout", true) +set("log.file", false) +set("log.level", 1) + +# Make the native sample rate compatible with op25 +set("frame.audio.samplerate", 8000) + +input = mksafe(input.external(buffer=0.25, channels=2, samplerate=8000, restart_on_error=false, "./audio.py -x 1.5 -s")) +# Consider increasing the buffer value on slow systems such as RPi3. e.g. buffer=0.25 +# Longer buffer results in less choppy audio but at the expense of increased latency. + + +# OPTIONAL AUDIO SIGNAL PROCESSING BLOCKS +# Uncomment to enable +# +# High pass filter +#input = filter.iir.butterworth.high(frequency = 200.0, order = 4, input) + +# Low pass filter +#input = filter.iir.butterworth.low(frequency = 3250.0, order = 4, input) + +# Compression +input = compress(input, attack = 2.0, gain = 0.0, knee = 13.0, ratio = 2.0, release = 12.3, threshold = -18.0) + +# Normalization +input = normalize(input, gain_max = 6.0, gain_min = -6.0, target = -16.0, threshold = -65.0) + + +# LOCAL AUDIO OUTPUT +# Uncomment the appropriate line below to enable local sound +# +# Default audio subsystem +#out (input) +# +# PulseAudio +#output.pulseaudio(input) +# +# ALSA +#output.alsa(input) + + + +# ICECAST STREAMING +# Uncomment to enable output to an icecast server +# Change the "host", "password", and "mount" strings appropriately first! +# For metadata to work properly, the host address given here MUST MATCH the address in op25's meta.json file +# +output.icecast(%mp3(bitrate=16, samplerate=22050, stereo=false), description="op25", genre="Public Safety", url="", fallible=false, host="localhost", port=8000, mount="mountpoint", password="hackme", mean(input))