Update app.py

app.py

@@ -38,7 +38,7 @@ def convert(file: _TemporaryFileWrapper, options: str):
 
 # Check Video Codec
 def chk_cod(a):
-    command = f"ffprobe {a} 2>&1 >/dev/null"
+    command = f"ffprobe \"{a}\" 2>&1 >/dev/null"
     output = subprocess.check_output(command, shell=True).decode("utf-8")
     print(output)
     match = re.search(r"Stream.*Video.*", output)