Improve Broadcastify Experience

.github/workflows/make_and_publish_pkgs.yml

@@ -25,6 +25,8 @@ on:
         type: choice
         options:
           - amd64
+          - arm64
+
 
 env:
   APTLY_API_USER: ${{secrets.APTLY_API_USER}}

Makefile

@@ -3,13 +3,14 @@
 #
 SRCNAME = ASL3
 PKGNAME = asl3
-RELVER = 3.18
+RELVER = 3.18.2
 DEBVER = 2
 RELPLAT ?= deb$(shell lsb_release -rs 2> /dev/null)
 
 BUILDABLES = \
 	apt.conf.d \
 	bin \
+	broadcastify \
 	etc \
 	keys \
 	polkit \

broadcastify/.gitignore

@@ -0,0 +1 @@
+rpt_audio_writer

broadcastify/1999.conf.example

@@ -0,0 +1,28 @@
+# Broadcastify stream configuration for node 1999
+# This file must be named NODE.conf - e.g. 1999.conf
+
+# FIFO path (where rpt_audio_writer is configured in outstreamcmd=)
+# This path needs to be readable by the asterisk user.
+# Replace "NODE" with the node number.
+FIFO=/var/lib/asterisk/NODE.fifo
+
+# Icecast server details
+# This configuration info found in your "Feed Technical Details"
+# section of your configured Broadcastify Stream
+ICECAST_HOST=audio9.radioreference.com
+ICECAST_PORT=80
+ICECAST_MOUNT=/abcdefg
+ICECAST_USER=source
+ICECAST_PASSWORD=abcd1234
+
+# Stream metadata - This can be wahtever you want within quotes
+STREAM_NAME=""
+STREAM_DESCRIPTION=""
+STREAM_URL=""
+
+# Don't change these unless you know why you're changing it
+STREAM_PUBLIC=1
+STREAM_GENRE="Amateur Radio"
+INPUT_SAMPLERATE=8000
+INPUT_CHANNELS=1
+OUTPUT_BITRATE=16k

broadcastify/Makefile

@@ -0,0 +1,36 @@
+bin_prefix ?= /usr/bin
+libexec_prefix ?= /usr/libexec/asl3
+sysconfdir ?= /etc/asterisk/broadcastify
+
+BUILDABLES = \
+	rpt_audio_writer
+
+BINS = asl-broadcastify
+BINS_EXP = $(patsubst %, $(DESTDIR)$(bin_prefix)/%, $(BINS))
+
+LIBEXECS = rpt_audio_writer
+LIBEXECS_EXP = $(patsubst %, $(DESTDIR)$(libexec_prefix)/%, $(LIBEXECS))
+
+CONF = 1999.conf.example
+CONF_EXP = $(patsubst %, $(DESTDIR)$(sysconfdir)/%, $(CONF))
+
+build:	$(BUILDABLES)
+
+install: build $(BINS_EXP) $(LIBEXECS_EXP) $(CONF_EXP)
+
+clean:
+	rm $(BUILDABLES)
+
+%:	%.c
+	cc -o $@ $<
+
+$(DESTDIR)$(bin_prefix)/%:	%	
+	install -D -m 0755 $< $@
+
+$(DESTDIR)$(libexec_prefix)/%:	%
+	install -D -m 0755 $< $@
+
+$(DESTDIR)$(sysconfdir)/%:	%
+	install -D -m 0644 $< $@
+	chmod 750 $(DESTDIR)$(sysconfdir)
+

broadcastify/asl-broadcastify

@@ -0,0 +1,63 @@
+#!/bin/bash
+#
+# Usage: broadcastify <node_id>
+# Reads /etc/asterisk/broadcastify/<node_id>.conf and streams audio
+# from the configured FIFO to the configured icecast mount.
+
+set -e
+
+NODE_ID="${1:?Usage: $0 <node_id>}"
+CONFIG="/etc/asterisk/broadcastify/${NODE_ID}.conf"
+
+if [ ! -r "$CONFIG" ]; then
+    echo "Cannot read config: $CONFIG" >&2
+    exit 1
+fi
+
+# shellcheck source=/dev/null
+. "$CONFIG"
+
+# Validate required values
+: "${FIFO:?FIFO not set in $CONFIG}"
+: "${ICECAST_HOST:?ICECAST_HOST not set in $CONFIG}"
+: "${ICECAST_PORT:?ICECAST_PORT not set in $CONFIG}"
+: "${ICECAST_MOUNT:?ICECAST_MOUNT not set in $CONFIG}"
+: "${ICECAST_USER:?ICECAST_USER not set in $CONFIG}"
+: "${ICECAST_PASSWORD:?ICECAST_PASSWORD not set in $CONFIG}"
+
+# Sensible defaults
+INPUT_SAMPLERATE="${INPUT_SAMPLERATE:-8000}"
+INPUT_CHANNELS="${INPUT_CHANNELS:-1}"
+OUTPUT_BITRATE="${OUTPUT_BITRATE:-16k}"
+STREAM_NAME="${STREAM_NAME:-app_rpt stream}"
+STREAM_DESCRIPTION="${STREAM_DESCRIPTION:-}"
+STREAM_GENRE="${STREAM_GENRE:-Amateur Radio}"
+STREAM_URL="${STREAM_URL:-}"
+STREAM_PUBLIC="${STREAM_PUBLIC:-1}"
+
+# Ensure FIFO exists as a FIFO
+if [ ! -p "$FIFO" ]; then
+    [ -e "$FIFO" ] && rm -f "$FIFO"
+    mkfifo -m 660 "$FIFO"
+fi
+
+# Background holder so ffmpeg never sees EOF when app_rpt is idle
+sleep infinity > "$FIFO" &
+HOLDER_PID=$!
+trap "kill $HOLDER_PID 2>/dev/null" EXIT INT TERM
+
+# Brief settle so the holder's open() completes
+sleep 0.1
+
+exec ffmpeg -nostdin -hide_banner -loglevel warning \
+    -f s16le -ar "$INPUT_SAMPLERATE" -ac "$INPUT_CHANNELS" -i "$FIFO" \
+    -c:a libmp3lame -b:a "$OUTPUT_BITRATE" \
+    -content_type audio/mpeg \
+    -legacy_icecast 1 \
+    -ice_name "$STREAM_NAME" \
+    -ice_description "$STREAM_DESCRIPTION" \
+    -ice_genre "$STREAM_GENRE" \
+    -ice_url "$STREAM_URL" \
+    -ice_public "$STREAM_PUBLIC" \
+    -f mp3 \
+    "icecast://${ICECAST_USER}:${ICECAST_PASSWORD}@${ICECAST_HOST}:${ICECAST_PORT}${ICECAST_MOUNT}"

broadcastify/rpt_audio_writer.c

@@ -0,0 +1,81 @@
+/* rpt_audio_writer.c
+ * Build: gcc -O2 -Wall -o rpt_audio_writer rpt_audio_writer.c
+ * Usage: rpt_audio_writer <fifo_path>
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#define CHUNK 320
+
+int main(int argc, char *argv[]) {
+  if (argc != 2) {
+    fprintf(stderr, "Usage: %s <fifo_path>\n", argv[0]);
+    return 1;
+  }
+
+  const char *fifo_path = argv[1];
+
+  /* Create the FIFO if it doesn't exist. If it exists as a FIFO, fine.
+   * If it exists as something else (regular file, socket), bail out. */
+  if (mkfifo(fifo_path, 0660) < 0) {
+    if (errno != EEXIST) {
+      fprintf(stderr, "mkfifo(%s): %s\n", fifo_path, strerror(errno));
+      return 1;
+    }
+    struct stat st;
+    if (stat(fifo_path, &st) < 0) {
+      fprintf(stderr, "stat(%s): %s\n", fifo_path, strerror(errno));
+      return 1;
+    }
+    if (!S_ISFIFO(st.st_mode)) {
+      fprintf(stderr, "%s exists but is not a FIFO\n", fifo_path);
+      return 1;
+    }
+  }
+
+  /* Ignore SIGPIPE; we handle EPIPE on write() ourselves */
+  signal(SIGPIPE, SIG_IGN);
+
+  unsigned char buf[CHUNK];
+  int fifo_fd = -1;
+
+  for (;;) {
+    ssize_t n = read(STDIN_FILENO, buf, CHUNK);
+    if (n == 0)
+      break; /* stdin closed */
+    if (n < 0) {
+      if (errno == EINTR)
+        continue;
+      break;
+    }
+
+    if (fifo_fd < 0) {
+      fifo_fd = open(fifo_path, O_WRONLY | O_NONBLOCK);
+      if (fifo_fd < 0)
+        continue; /* no reader, drop */
+    }
+
+    ssize_t w = write(fifo_fd, buf, n);
+    if (w < 0) {
+      if (errno == EAGAIN) {
+        continue; /* reader slow, drop chunk */
+      }
+      if (errno == EPIPE || errno == EBADF) {
+        close(fifo_fd);
+        fifo_fd = -1;
+        continue;
+      }
+      break;
+    }
+  }
+
+  if (fifo_fd >= 0)
+    close(fifo_fd);
+  return 0;
+}

debian/asl-broadcastify@.service

@@ -0,0 +1,27 @@
+[Unit]
+Description=Broadcastify stream encoder for node %i
+After=asterisk.service network-online.target
+Wants=network-online.target
+PartOf=asterisk.service
+
+# Don't restart forever if the config is broken
+StartLimitIntervalSec=300
+StartLimitBurst=5
+
+[Service]
+Type=simple
+User=asterisk
+Group=asterisk
+ExecStart=/usr/bin/asl-broadcastify %i
+Restart=always
+RestartSec=5
+
+# Hardening
+NoNewPrivileges=true
+ProtectSystem=strict
+ProtectHome=true
+ReadWritePaths=/var/lib/asterisk
+PrivateTmp=true
+
+[Install]
+WantedBy=multi-user.target

debian/changelog

@@ -1,3 +1,15 @@
+asl3 (3.18.2-2) stable; urgency=medium
+
+  * Add ffmpeg to control
+
+ -- Helium <jason@mfamily.org>  Sun, 17 May 2026 17:21:16 -0400
+
+asl3 (3.18.2-1) stable; urgency=medium
+
+  * This is a beta package for broadcastify improvements
+
+ -- Helium <jason@mfamily.org>  Thu, 14 May 2026 17:46:43 -0400
+
 asl3 (3.18-1) stable; urgency=medium
 
   * asl-node-auth-check: node changed to s in lookup (#183)

debian/control

@@ -10,10 +10,10 @@ Vcs-Git: https://github.com/AllStarLink/ASL3.git
 Rules-Requires-Root: binary-targets
 
 Package: asl3
-Architecture: all
+Architecture: any
 Depends: ${misc:Depends}, asl3-asterisk, asl3-menu, lsb-release, 
   bind9-dnsutils, uuid, curl, lame, sox, whiptail, python3-serial,
-  python3-requests
+  python3-requests, ffmpeg
 Breaks: asl3-pi-appliance (<< 1.8.0)
 Suggests: allmon3, asl3-update-nodelist
 Description: AllStarLink 3

debian/postinst

@@ -24,6 +24,15 @@ function do_configure() {
 		echo "options snd_usb_audio lowlatency=1" > \
 			/etc/modprobe.d/asl3-snd-usb-audio.conf
 	fi
+
+	if getent passwd asterisk >/dev/null; then
+		chown -R asterisk:asterisk /etc/asterisk/broadcastify/
+		chmod 750 /etc/asterisk/broadcastify/
+	fi
+
+#DEBHELPER#
+
+exit 0
 }
 
 case "$1" in

debian/rules

@@ -13,3 +13,4 @@ endif
 override_dh_installsystemd:
 	dh_installsystemd --name=asl-telemetry asl-telemetry.timer
 	dh_installsystemd --name=asl3-boot-oneshot --no-restart-after-upgrade --no-start
+	dh_installsystemd --name=asl-broadcastify@ --no-enable --no-start --no-restart-after-upgrade