Optimized srt input support

Former-commit-id: e66a72b5170100bbb290ccc0ca3e6002337b67ca

pipeline.py

@@ -195,8 +195,10 @@ if os.path.exists(zh_file):
             pass
         count += 1
         segidx = int(count/4)+1
-        
-    with open("{}/{}/{}_en.srt".format(RESULT_PATH, VIDEO_NAME, VIDEO_NAME), "r") as f1, open(temp_file, "a") as f2:
+    en_file = "{}/{}/{}_en.srt".format(RESULT_PATH, VIDEO_NAME, VIDEO_NAME)
+    if args.srt_file is not None:
+        en_file = args.srt_file
+    with open(en_file, "r") as f1, open(temp_file, "a") as f2:
         x = f1.readlines()
         #print(len(x))
         if count >= len(x):