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Trying to retransmit UDP audio

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This commit is contained in:
Logan Cusano
2026-01-04 01:51:01 -05:00
parent b7c7158ea3
commit deb87d5888
1 changed files with 23 additions and 18 deletions
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37
app/internal/discord_radio.py
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@@ -64,7 +64,11 @@ class UDPAudioSource(discord.AudioSource):
def cleanup(self):
if self.ffmpeg_process:
self.ffmpeg_process.kill()
try:
self.ffmpeg_process.stdin.close()
self.ffmpeg_process.terminate()
except:
pass
class DiscordRadioBot(discord.Client):
"""
@@ -103,17 +107,18 @@ class DiscordRadioBot(discord.Client):
Runs in a background thread. Listens for UDP packets from OP25.
"""
self.udp_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
# Bind to 0.0.0.0 to ensure we catch traffic from any interface (Docker/Localhost)
# Bind to all interfaces to ensure we catch the OP25 stream
self.udp_sock.bind(('0.0.0.0', self.listen_port))
self.udp_sock.settimeout(1.0)
LOGGER.info(f"UDP Audio Bridge listening on 0.0.0.0:{self.listen_port}")
LOGGER.info(f"Forwarding audio to: {self.forward_ports}")
forward_socks = []
# Create sockets for each forward port
forward_targets = []
for port in self.forward_ports:
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
forward_socks.append((s, port))
forward_targets.append((s, port))
self.running = True
while self.running:
@@ -121,21 +126,23 @@ class DiscordRadioBot(discord.Client):
data, addr = self.udp_sock.recvfrom(4096)
self.packets_received += 1
# 1. Forward to Liquidsoap/Other tools
for sock, port in forward_socks:
# Send to localhost (where Liquidsoap should be listening)
# 1. Forward to Liquidsoap/audio.py
for sock, port in forward_targets:
try:
sock.sendto(data, ('127.0.0.1', port))
self.packets_forwarded += 1
except Exception as fe:
# Log forwarding errors only once per 5 seconds to avoid spam
if self.packets_forwarded % 100 == 0:
LOGGER.error(f"Forward error to port {port}: {fe}")
# 2. Add to Discord Buffer
self.audio_buffer.extend(data)
# Periodic Debug Logging (Every 5 seconds, only if active)
if time.time() - self.last_log_time > 5:
# Periodic Stats Logging
if time.time() - self.last_log_time > 10:
if self.packets_received > 0:
LOGGER.info(f"UDP Stats [5s]: Rx {self.packets_received} pkts | Tx {self.packets_forwarded} pkts | Buffer: {len(self.audio_buffer)} bytes")
# Reset counters
LOGGER.info(f"Discord Audio Bridge Stats: Received {self.packets_received} packets, Forwarded {self.packets_forwarded}")
self.packets_received = 0
self.packets_forwarded = 0
self.last_log_time = time.time()
@@ -208,10 +215,8 @@ class DiscordRadioBot(discord.Client):
This turns the green ring ON.
"""
if self.voice_client and not self.voice_client.is_playing():
# clear buffer slightly to ensure we aren't playing old data
# but keep a little to prevent jitter
# self.audio_buffer.clear()
# Clear old audio so we don't start with a delay
self.audio_buffer.clear()
source = UDPAudioSource(self.audio_buffer)
self.voice_client.play(source)