1 files changed, 66 insertions, 0 deletions
diff --git a/stacks/crdop/tools/audio-dummyd.py b/stacks/crdop/tools/audio-dummyd.py
new file mode 100644
index 0000000..a4bb922
--- /dev/null
+++ b/stacks/crdop/tools/audio-dummyd.py
@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+"""Audio dummy daemon — M25 host TCP + acoustic DSP bench for max25d."""
+from __future__ import annotations
+
+import argparse
+import sys
+import threading
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[3]
+LIB = ROOT / "stacks" / "crdop" / "lib"
+sys.path.insert(0, str(LIB))
+
+from acoustic_engine import AcousticEngine  # noqa: E402
+from m25_host_protocol import DEFAULT_CTRL_PORT, DEFAULT_DATA_PORT, M25SoftModemHost  # noqa: E402
+from sound_proxy import SoundConfig  # noqa: E402
+
+_DAEMON = ROOT / "stacks" / "daemon"
+sys.path.insert(0, str(_DAEMON))
+from ax25_codec import ax25_build_ui  # noqa: E402
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser(description="MAX25 audio-dummy device daemon")
+    ap.add_argument("--ctrl-port", type=int, default=DEFAULT_CTRL_PORT)
+    ap.add_argument("--data-port", type=int, default=DEFAULT_DATA_PORT)
+    ap.add_argument("-D", "--capture", default="")
+    ap.add_argument("-P", "--playback", default="")
+    ap.add_argument("-r", "--rate", type=int, default=48000)
+    args = ap.parse_args()
+
+    sound = SoundConfig(
+        capture=args.capture or "default",
+        playback=args.playback or args.capture or "default",
+        sample_rate=args.rate,
+    )
+    eng = AcousticEngine(sample_rate=args.rate, sound=sound)
+    rx_lock = threading.Lock()
+    last_rx: list[str] = []
+
+    def on_tx(payload: bytes) -> str:
+        if len(payload) < 16:
+            return "ERR short payload"
+        pcm = eng.mod.modulate_bits(payload)
+        eng.sound.playback = sound.playback
+        from sound_proxy import create_sound_proxy
+
+        create_sound_proxy(sound).play_pcm(pcm)
+        return "OK"
+
+    host = M25SoftModemHost(args.ctrl_port, args.data_port, on_data_tx=on_tx)
+    host.start()
+    print(
+        f"audio-dummyd ctrl=:{args.ctrl_port} data=:{args.data_port} rate={args.rate}",
+        flush=True,
+    )
+    try:
+        while True:
+            threading.Event().wait(3600.0)
+    except KeyboardInterrupt:
+        host.stop()
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())