update

AzA march 2026/aza_audio.py

@@ -8,6 +8,7 @@ import os
 import shutil
 import subprocess
 import tempfile
+import time
 import wave
 from datetime import datetime
 from typing import List, Optional
@@ -45,6 +46,46 @@ def persist_audio_safe(temp_path: str) -> str:
     return safe_path
 
 
+def wait_for_audio_file_stable(
+    path: str,
+    *,
+    min_size: int = 1,
+    timeout: float = 3.0,
+    interval: float = 0.15,
+) -> bool:
+    """Wartet bis Audiodatei existiert, lesbar ist und die Groesse stabil bleibt."""
+    deadline = time.time() + max(0.1, float(timeout))
+    last_size = -1
+    stable_reads = 0
+    while time.time() < deadline:
+        try:
+            if not os.path.isfile(path):
+                stable_reads = 0
+                time.sleep(interval)
+                continue
+            size = os.path.getsize(path)
+            if size < min_size:
+                stable_reads = 0
+                last_size = size
+                time.sleep(interval)
+                continue
+            if size == last_size:
+                stable_reads += 1
+            else:
+                stable_reads = 0
+                last_size = size
+                time.sleep(interval)
+                continue
+            if stable_reads >= 2:
+                with open(path, "rb") as fh:
+                    fh.read(1)
+                return True
+        except Exception:
+            stable_reads = 0
+        time.sleep(interval)
+    return False
+
+
 def cleanup_old_audio_backups(max_age_days: int = 30):
     """Löscht Audio-Backups älter als max_age_days (nur erfolgreich transkribierte)."""
     backup_dir = get_audio_backup_dir()