Update helper.py

helper.py

@@ -91,7 +91,7 @@ def cut_video(video_path, max_duration=2):
 # -------------------------------
 # Convert video to audio safely
 # -------------------------------
-def video_to_audio(video_input, output_path="/tmp/temp_reference.wav", max_duration=2):
+def video_to_audio(video_input, output_path=None, max_duration=2):
     """
     Convert video (file path, data URL, or base64) to WAV audio using MoviePy.
     Handles all input formats safely and avoids oversized subprocess arguments.
@@ -100,6 +100,11 @@ def video_to_audio(video_input, output_path="/tmp/temp_reference.wav", max_durat
     clip = None
 
     try:
+        # ✅ Auto-generate output path if None
+        if output_path is None:
+            output_path = tempfile.NamedTemporaryFile(delete=False, suffix=".wav").name
+            logger.debug(f"Auto-created output path: {output_path}")
+
         # Detect and decode base64 or data URLs
         if isinstance(video_input, str):
             if video_input.startswith("data:video/"):  # full data URL
@@ -137,7 +142,6 @@ def video_to_audio(video_input, output_path="/tmp/temp_reference.wav", max_durat
         )
         clip.close()
 
-        # Validate output
         if not os.path.exists(output_path) or os.path.getsize(output_path) == 0:
             raise Exception("Output audio file not created or empty")
 
@@ -160,7 +164,7 @@ def video_to_audio(video_input, output_path="/tmp/temp_reference.wav", max_durat
                 logger.debug(f"🧹 Deleted temp file {temp_video_path}")
             except Exception as e:
                 logger.warning(f"⚠️ Failed to delete temp file: {e}")
-
+                
 # -------------------------------
 # Ensure WAV format
 # -------------------------------