add chunk size

Former-commit-id: 1b0a2521f8dddcd4a4e4526c7b0647e7ad9357b2

pipeline.py

@@ -157,7 +157,7 @@ if not args.only_srt:
 
 
 # Split the video script by sentences and create chunks within the token limit
-def script_split(script_in, chunk_size = 500):
+def script_split(script_in, chunk_size = 1000):
     script_split = script_in.split('\n\n')
     script_arr = []
     range_arr = []