使用AutoSub与Python处理SRT字幕:移除空字幕条目报错解决
解决SubtitlesClip空字幕条目报错问题
问题根源
你遇到的TypeError: cannot unpack non-iterable NoneType object,是因为autosub生成的SRT文件包含无文本内容的空字幕条目,SubtitlesClip解析这类条目时无法处理,直接触发报错。手动删除空条目后恢复正常,说明只需自动化过滤这类无效条目即可解决问题。
自动化清理SRT空条目代码
在调用SubtitlesClip之前,加入以下函数处理SRT文件:
def clean_empty_subtitles(srt_path): # 读取原SRT文件内容 with open(srt_path, 'r', encoding='utf-8') as f: lines = f.readlines() cleaned_lines = [] current_entry = [] for line in lines: stripped_line = line.strip() current_entry.append(line) # SRT条目以空行分隔,此时检查当前条目是否有有效文本 if stripped_line == '': # 判断条目内是否存在非序号、非时间轴的有效文本 has_valid_text = any( len(line.strip()) > 0 and not line.strip().isdigit() and '-->' not in line for line in current_entry ) if has_valid_text: cleaned_lines.extend(current_entry) current_entry = [] # 处理文件末尾无空行的最后一个条目 if current_entry: has_valid_text = any( len(line.strip()) > 0 and not line.strip().isdigit() and '-->' not in line for line in current_entry ) if has_valid_text: cleaned_lines.extend(current_entry) # 写入清理后的内容 with open(srt_path, 'w', encoding='utf-8') as f: f.writelines(cleaned_lines)
整合到你的代码中
把上述函数放在os.system(command)之后、SubtitlesClip之前,位置如下:
command = r'C:\Users\tript\Downloads\autosub-0.5.7-alpha-win-x64-pyinstaller\autosub_pyinstaller\autosub.exe -i "c:\Users\tript\OneDrive\Documents\Coding Projects\Auto_YT_Shorts_Gen\voiceover.mp3" -o "c:\Users\tript\OneDrive\Documents\Coding Projects\Auto_YT_Shorts_Gen" -S en -y' os.system(command) # 新增:自动清理空字幕条目 def clean_empty_subtitles(srt_path): with open(srt_path, 'r', encoding='utf-8') as f: lines = f.readlines() cleaned_lines = [] current_entry = [] for line in lines: stripped_line = line.strip() current_entry.append(line) if stripped_line == '': has_valid_text = any( len(line.strip()) > 0 and not line.strip().isdigit() and '-->' not in line for line in current_entry ) if has_valid_text: cleaned_lines.extend(current_entry) current_entry = [] if current_entry: has_valid_text = any( len(line.strip()) > 0 and not line.strip().isdigit() and '-->' not in line for line in current_entry ) if has_valid_text: cleaned_lines.extend(current_entry) with open(srt_path, 'w', encoding='utf-8') as f: f.writelines(cleaned_lines) clean_empty_subtitles("voiceover.en.srt") # 注意:调整my_clip加载顺序,解决size引用报错问题 my_clip = VideoFileClip("sample.mp4") # 修正size的写法,元组不能直接减数字,需分别处理宽高 generator_output = lambda txt: TextClip(txt, font='Arial', fontsize=72, color='white', method="subtitle", size=(my_clip.size[0]-100, my_clip.size[1]-100)) sub = SubtitlesClip("voiceover.en.srt", generator_output) # ... 后续代码保持不变
额外修正提示
你原代码中generator_output用到my_clip.size时,my_clip还未定义,会触发新的报错,同时size=my_clip.size-100的写法错误(元组无法直接减数字),上面的代码已经同步修正了这两个问题。
内容的提问来源于stack exchange,提问作者Triptox123
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