Update app.py

app.py

@@ -4,6 +4,17 @@ from fastapi import FastAPI, File, UploadFile
 from fastapi.responses import FileResponse
 import subprocess
 import uuid
+import os
+
+def validate_checkpoint(path):
+    if not os.path.exists(path):
+        raise Exception(f"Checkpoint missing: {path}")
+    if os.path.getsize(path) < 100 * 1024 * 1024:  # <100MB = corrupted
+        raise Exception(f"Checkpoint corrupted or incomplete: {path}")
+
+# Validate
+validate_checkpoint("Wav2Lip/Wav2Lip.pth")
+validate_checkpoint("Wav2Lip/wav2lip_gan.pth")
 
 app = FastAPI(title="Wav2Lip API (HuggingFace)")