feat: refactor vocoder engine for software transcoding and multi-tenancy

2026-08-09 11:46:00 +02:00
parent 957ffd4b83
commit c37e1f9273
5 changed files with 717 additions and 184 deletions
@@ -0,0 +1,47 @@
+import socket
+import subprocess
+import os
+import threading
+import time
+
+BIN_PATH = "/opt/md380-emu/md380-emu"
+SHM_DIR = "/dev/shm"
+
+def gestisci_emulatore(porta):
+    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    sock.bind(('127.0.0.1', porta))
+    print(f"[*] Vocoder attivo in ascolto sulla porta UDP {porta}")
+    
+    while True:
+        try:
+            data, addr = sock.recvfrom(1024)
+            if not data: continue
+            
+            # Percorsi file univoci per ogni porta direttamente nella RAM
+            f_in = f"{SHM_DIR}/in_{porta}.bin"
+            f_out = f"{SHM_DIR}/out_{porta}.bin"
+            
+            with open(f_in, "wb") as f:
+                f.write(data)
+            
+            # Se riceviamo 7 byte, è AMBE da decodificare in PCM. Altrimenti è PCM da codificare.
+            if len(data) == 7 or len(data) == 9:
+                subprocess.run([BIN_PATH, "-d", "-i", f_in, "-o", f_out], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+            else:
+                subprocess.run([BIN_PATH, "-e", "-i", f_in, "-o", f_out], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+                
+            if os.path.exists(f_out):
+                with open(f_out, "rb") as f:
+                    sock.sendto(f.read(), addr)
+        except Exception:
+            pass
+
+# Avviamo 3 vocoder indipendenti in background
+for p in [2470, 2471, 2472]:
+    threading.Thread(target=gestisci_emulatore, args=(p,), daemon=True).start()
+
+try:
+    while True:
+        time.sleep(1)
+except KeyboardInterrupt:
+    print("Chiusura del pool...")