diff --git a/biliup/engine/download.py b/biliup/engine/download.py
index 7d0c2d0..68b18d1 100644
--- a/biliup/engine/download.py
+++ b/biliup/engine/download.py
@@ -70,10 +70,10 @@ class DownloadBase:
                 '-i', self.raw_stream_url, *self.default_output_args, *self.opt_args,
                 '-c', 'copy', '-f', self.suffix]
         if config.get('segment_time'):
-            args += ['-f', 'segment', f'{time.strftime(filename)} part-%03d.{self.suffix}']
+            args += ['-f', 'segment', f'{(time.strftime(filename).encode("unicode-escape").decode()).encode().decode("unicode-escape")} part-%03d.{self.suffix}']
         else:
-            args += [f'{time.strftime(filename)}.{self.suffix}.part']
-
+            args += [f'{(time.strftime(filename).encode("unicode-escape").decode()).encode().decode("unicode-escape")}.{self.suffix}']
+            
         proc = subprocess.Popen(args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
         try:
             with proc.stdout as stdout:
@@ -178,8 +178,8 @@ def get_valid_filename(name):
     >>> get_valid_filename("{self.fname}%Y-%m-%dT%H_%M_%S")
     '{self.fname}%Y-%m-%dT%H_%M_%S'
     """
-    #s = str(name).strip().replace(" ", "_") #因为有些人会在主播名中间加入空格，为了避免和录播完毕自动改名冲突，所以注销掉
-    s = re.sub(r"(?u)[^-\w.%{}\[\]【】「」]", "", s)
+    #s = str(name).strip().replace(" ", "_") #因为有些人会在主播名中间加入空格，为了避免和录播完毕自动改名冲突，所以注释掉
+    s = re.sub(r"(?u)[^-\w.%{}\[\]【】「」\s]", "", str(name))
     if s in {"", ".", ".."}:
         raise RuntimeError("Could not derive file name from '%s'" % name)
     return s