from datetime import timedelta from csv import reader from datetime import datetime import re import openai import os from collections import deque class SRT_segment(object): def __init__(self, *args) -> None: if isinstance(args[0], dict): segment = args[0] self.start = segment['start'] self.end = segment['end'] self.start_ms = int((segment['start']*100)%100*10) self.end_ms = int((segment['end']*100)%100*10) if self.start_ms == self.end_ms and int(segment['start']) == int(segment['end']): # avoid empty time stamp self.end_ms+=500 self.start_time = timedelta(seconds=int(segment['start']), milliseconds=self.start_ms) self.end_time = timedelta(seconds=int(segment['end']), milliseconds=self.end_ms) if self.start_ms == 0: self.start_time_str = str(0)+str(self.start_time).split('.')[0]+',000' else: self.start_time_str = str(0)+str(self.start_time).split('.')[0]+','+str(self.start_time).split('.')[1][:3] if self.end_ms == 0: self.end_time_str = str(0)+str(self.end_time).split('.')[0]+',000' else: self.end_time_str = str(0)+str(self.end_time).split('.')[0]+','+str(self.end_time).split('.')[1][:3] self.source_text = segment['text'].lstrip() self.duration = f"{self.start_time_str} --> {self.end_time_str}" self.translation = "" elif isinstance(args[0], list): self.source_text = args[0][2] self.duration = args[0][1] self.start_time_str = self.duration.split(" --> ")[0] self.end_time_str = self.duration.split(" --> ")[1] # parse the time to float self.start_ms = int(self.start_time_str.split(',')[1])/10 self.end_ms = int(self.end_time_str.split(',')[1])/10 start_list = self.start_time_str.split(',')[0].split(':') self.start = int(start_list[0])*3600 + int(start_list[1])*60 + int(start_list[2]) + self.start_ms/100 end_list = self.end_time_str.split(',')[0].split(':') self.end = int(end_list[0])*3600 + int(end_list[1])*60 + int(end_list[2]) + self.end_ms/100 self.translation = "" def merge_seg(self, seg): self.source_text += seg.source_text self.translation += seg.translation self.end_time_str = seg.end_time_str self.duration = f"{self.start_time_str} --> {self.end_time_str}" pass def __str__(self) -> str: return f'{self.duration}\n{self.source_text}\n\n' def get_trans_str(self) -> str: return f'{self.duration}\n{self.translation}\n\n' def get_bilingual_str(self) -> str: return f'{self.duration}\n{self.source_text}\n{self.translation}\n\n' class SRT_script(): def __init__(self, segments) -> None: self.segments = [] for seg in segments: srt_seg = SRT_segment(seg) self.segments.append(srt_seg) @classmethod def parse_from_srt_file(cls, path:str): with open(path, 'r', encoding="utf-8") as f: script_lines = f.read().splitlines() segments = [] for i in range(len(script_lines)): if i % 4 == 0: segments.append(list(script_lines[i:i+4])) return cls(segments) def merge_segs(self, idx_list) -> SRT_segment: final_seg = self.segments[idx_list[0]] if len(idx_list) == 1: return final_seg for idx in range(1, len(idx_list)): final_seg.merge_seg(self.segments[idx_list[idx]]) return final_seg def form_whole_sentence(self): merge_list = [] # a list of indices that should be merged e.g. [[0], [1, 2, 3, 4], [5, 6], [7]] sentence = [] for i, seg in enumerate(self.segments): if seg.source_text[-1] == '.': sentence.append(i) merge_list.append(sentence) sentence = [] else: sentence.append(i) segments = [] for idx_list in merge_list: segments.append(self.merge_segs(idx_list)) self.segments = segments # need memory release? def set_translation(self, translate:str, id_range:tuple, model, video_name, video_link=None): start_seg_id = id_range[0] end_seg_id = id_range[1] def inner_func(input_str): response = openai.ChatCompletion.create( model=model, messages = [ {"role": "system", "content": "You are a helpful assistant that help calibrates English to Chinese subtitle translations in starcraft2."}, {"role": "system", "content": "You are provided with a translated Chinese transcript; you must modify or split the Chinese sentence to match the meaning and the number of the English transcript exactly one by one. You must not merge ANY Chinese lines, you can only split them but the total Chinese lines MUST equals to number of English lines."}, {"role": "system", "content": "There is no need for you to add any comments or notes, and do not modify the English transcript."}, {"role": "user", "content": 'You are given the English transcript and line number, your task is to merge or split the Chinese to match the exact number of lines in English transcript, no more no less. For example, if there are more Chinese lines than English lines, merge some the Chinese lines to match the number of English lines. If Chinese lines is less than English lines, split some Chinese lines to match the english lines: "{}"'.format(input_str)} ], temperature=0.7 ) return response['choices'][0]['message']['content'].strip() lines = translate.split('\n\n') if len(lines) < (end_seg_id - start_seg_id + 1): count = 0 solved = False while count<5 and len(lines) != (end_seg_id - start_seg_id + 1): count += 1 print("Solving Unmatched Lines|iteration {}".format(count)) input_str = "\n" #initialize GPT input for i, seg in enumerate(self.segments[start_seg_id-1:end_seg_id]): input_str += 'Sentence %d: ' %(i+1)+ seg.source_text + '\n' #Append to prompt string #Adds sentence index let GPT keep track of sentence breaks input_str += translate #append translate to prompt flag = True while flag: flag = False try: translate = inner_func(input_str) except Exception as e: print("An error has occurred during solving unmatched lines:",e) print("Retrying...") flag = True lines = translate.split('\n\n') if len(lines) < (end_seg_id - start_seg_id + 1): print("Failed Solving unmatched lines, Manually parse needed") if video_link: log_file = "./logs/log_link.csv" log_exist = os.path.exists(log_file) with open(log_file,"a") as log: if not log_exist: log.write("range_of_text,iterations_solving,solved,file_length,video_link" + "\n") log.write(str(id_range)+','+str(count)+','+str(solved)+','+str(len(self.segments))+','+video_link + "\n") else: log_file = "./logs/log_name.csv" log_exist = os.path.exists(log_file) with open(log_file,"a") as log: if not log_exist: log.write("range_of_text,iterations_solving,solved,file_length,video_name" + "\n") log.write(str(id_range)+','+str(count)+','+str(solved)+','+str(len(self.segments))+','+video_name + "\n") print(lines) #print(id_range) #for i, seg in enumerate(self.segments[start_seg_id-1:end_seg_id]): # print(seg.source_text) #print(translate) for i, seg in enumerate(self.segments[start_seg_id-1:end_seg_id]): # naive way to due with merge translation problem # TODO: need a smarter solution if i < len(lines): if "(Note:" in lines[i]: # to avoid note lines.remove(lines[i]) if i == len(lines) - 1: break try: seg.translation = lines[i].split("：" or ": ")[1] except: seg.translation = lines[i] #print(lines[i]) pass def split_seg(self, seg, threshold): # evenly split seg to 2 parts and add new seg into self.segments if seg.source_text[:2] == ', ': seg.source_text = seg.source_text[2:] if seg.translation[0] == '，': seg.translation = seg.translation[1:] source_text = seg.source_text translation = seg.translation src_commas = [m.start() for m in re.finditer(',', source_text)] trans_commas = [m.start() for m in re.finditer('，', translation)] if len(src_commas) != 0: src_split_idx = src_commas[len(src_commas)//2] if len(src_commas) % 2 == 1 else src_commas[len(src_commas)//2 - 1] else: src_space = [m.start() for m in re.finditer(' ', source_text)] if len(src_space) > 0: src_split_idx = src_space[len(src_space)//2] if len(src_space) % 2 == 1 else src_space[len(src_space)//2 - 1] else: src_split_idx = 0 if len(trans_commas) != 0: trans_split_idx = trans_commas[len(trans_commas)//2] if len(trans_commas) % 2 == 1 else trans_commas[len(trans_commas)//2 - 1] else: trans_split_idx = len(translation)//2 src_seg1 = source_text[:src_split_idx] src_seg2 = source_text[src_split_idx:] trans_seg1 = translation[:trans_split_idx] trans_seg2 = translation[trans_split_idx:] start_seg1 = seg.start end_seg1 = start_seg2 = seg.start + (seg.end - seg.start)/2 end_seg2 = seg.end seg1_dict = {} seg1_dict['text'] = src_seg1 seg1_dict['start'] = start_seg1 seg1_dict['end'] = end_seg1 seg1 = SRT_segment(seg1_dict) seg1.translation = trans_seg1 seg2_dict = {} seg2_dict['text'] = src_seg2 seg2_dict['start'] = start_seg2 seg2_dict['end'] = end_seg2 seg2 = SRT_segment(seg2_dict) seg2.translation = trans_seg2 result_list = [] if len(seg1.translation) > threshold: result_list += self.split_seg(seg1, threshold) else: result_list.append(seg1) if len(seg2.translation) > threshold: result_list += self.split_seg(seg2, threshold) else: result_list.append(seg2) return result_list def check_len_and_split(self, threshold=30): # DEPRECATED # if sentence length >= threshold, split this segments to two segments = [] for seg in self.segments: if len(seg.translation) > threshold: seg_list = self.split_seg(seg, threshold) segments += seg_list else: segments.append(seg) self.segments = segments pass def check_len_and_split_range(self, range, threshold=30): # if sentence length >= threshold, split this segments to two start_seg_id = range[0] end_seg_id = range[1] extra_len = 0 segments = [] for i, seg in enumerate(self.segments[start_seg_id-1:end_seg_id]): if len(seg.translation) > threshold: seg_list = self.split_seg(seg, threshold) segments += seg_list extra_len += len(seg_list) - 1 else: segments.append(seg) self.segments[start_seg_id-1:end_seg_id] = segments return extra_len def get_source_only(self): # return a string with pure source text result = "" for i, seg in enumerate(self.segments): result+=f'SENTENCE {i+1}: {seg.source_text}\n\n\n' return result def reform_src_str(self): result = "" for i, seg in enumerate(self.segments): result += f'{i+1}\n' result += str(seg) return result def reform_trans_str(self): result = "" for i, seg in enumerate(self.segments): result += f'{i+1}\n' result += seg.get_trans_str() return result def form_bilingual_str(self): result = "" for i, seg in enumerate(self.segments): result += f'{i+1}\n' result += seg.get_bilingual_str() return result def write_srt_file_src(self, path:str): # write srt file to path with open(path, "w", encoding='utf-8') as f: f.write(self.reform_src_str()) pass def write_srt_file_translate(self, path:str): with open(path, "w", encoding='utf-8') as f: f.write(self.reform_trans_str()) pass def write_srt_file_bilingual(self, path:str): with open(path, "w", encoding='utf-8') as f: f.write(self.form_bilingual_str()) pass def correct_with_force_term(self): ## force term correction # TODO: shortcut translation i.e. VA, ob # TODO: variety of translation # load term dictionary with open("./finetune_data/dict_enzh.csv",'r', encoding='utf-8') as f: term_enzh_dict = {rows[0]:rows[1] for rows in reader(f)} # change term for seg in self.segments: ready_words = seg.source_text.split(" ") for i in range(len(ready_words)): word = ready_words[i] [real_word, pos] = self.get_real_word(word) if real_word in term_enzh_dict: new_word = word.replace(word[:pos], term_enzh_dict.get(real_word)) else: new_word = word ready_words[i] = new_word seg.source_text = " ".join(ready_words) pass def spell_check_term(self): ## known bug: I've will be replaced because i've is not in the dict import enchant dict = enchant.Dict('en_US') term_spellDict = enchant.PyPWL('./finetune_data/dict_freq.txt') for seg in self.segments: ready_words = seg.source_text.split(" ") for i in range(len(ready_words)): word = ready_words[i] [real_word, pos] = self.get_real_word(word) if not dict.check(word[:pos]): suggest = term_spellDict.suggest(real_word) if suggest: # relax spell check new_word = word.replace(word[:pos],suggest[0]) else: new_word = word ready_words[i] = new_word seg.source_text = " ".join(ready_words) pass def spell_correction(self, word:str, arg:int): try: arg in [0,1] except ValueError: print('only 0 or 1 for argument') def uncover(word:str): if word[-2:] == ".\n": real_word = word[:-2].lower() n = -2 elif word[-1:] in [".", "\n", ",", "!", "?"]: real_word = word[:-1].lower() n = -1 else: real_word = word.lower() n = 0 return real_word, len(word)+n real_word = uncover(word)[0] pos = uncover(word)[1] new_word = word if arg == 0: # term translate mode with open("finetune_data/dict_enzh.csv",'r', encoding='utf-8') as f: term_enzh_dict = {rows[0]:rows[1] for rows in reader(f)} if real_word in term_enzh_dict: new_word = word.replace(word[:pos], term_enzh_dict.get(real_word)) elif arg == 1: # term spell check mode import enchant dict = enchant.Dict('en_US') term_spellDict = enchant.PyPWL('./finetune_data/dict_freq.txt') if not dict.check(real_word): if term_spellDict.suggest(real_word): # relax spell check new_word = word.replace(word[:pos],term_spellDict.suggest(real_word)[0]) return new_word def get_real_word(self, word:str): if word[-2:] == ".\n": real_word = word[:-2].lower() n = -2 elif word[-1:] in [".", "\n", ",", "!", "?"]: real_word = word[:-1].lower() n = -1 else: real_word = word.lower() n = 0 return real_word, len(word)+n def realtime_write_srt(self,path,range,length, idx): start_seg_id = range[0] end_seg_id = range[1] with open(path, "a", encoding='utf-8') as f: # for i, seg in enumerate(self.segments[start_seg_id-1:end_seg_id+length]): # f.write(f'{i+idx}\n') # f.write(seg.get_trans_str()) for i, seg in enumerate(self.segments): if i=range[1] + length :break f.write(f'{i+idx}\n') f.write(seg.get_trans_str()) pass def realtime_bilingual_write_srt(self,path,range, length,idx): start_seg_id = range[0] end_seg_id = range[1] with open(path, "a", encoding='utf-8') as f: for i, seg in enumerate(self.segments): if i=range[1] + length :break f.write(f'{i+idx}\n') f.write(seg.get_bilingual_str()) pass