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Update transcribe.py
Browse files- transcribe.py +129 -129
transcribe.py
CHANGED
@@ -1,130 +1,130 @@
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from faster_whisper import WhisperModel
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import math
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def word_level_transcribe(audio, max_segment_duration=2.0): # Set your desired max duration here
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model = WhisperModel("tiny", device="cpu",
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segments, info = model.transcribe(audio, vad_filter=True, vad_parameters=dict(min_silence_duration_ms=1500), word_timestamps=True, log_progress=True)
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segments = list(segments) # The transcription will actually run here.
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wordlevel_info = []
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for segment in segments:
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for word in segment.words:
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print("[%.2fs -> %.2fs] %s" % (word.start, word.end, word.word))
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wordlevel_info.append({'word':word.word,'start':word.start,'end':word.end})
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return wordlevel_info
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def create_subtitles(wordlevel_info):
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punctuation_marks = {'.', '!', '?', ',', ';', ':', '—', '-', '。', '!', '?'} # Add/remove punctuation as needed
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subtitles = []
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line = []
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for word_data in wordlevel_info:
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line.append(word_data)
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current_word = word_data['word']
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# Check if current word ends with punctuation or line reached 5 words
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ends_with_punct = current_word and (current_word[-1] in punctuation_marks)
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if ends_with_punct or len(line) == 5:
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# Create a new subtitle segment
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subtitle = {
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"word": " ".join(item["word"] for item in line),
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"start": line[0]["start"],
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"end": line[-1]["end"],
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"textcontents": line.copy()
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}
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subtitles.append(subtitle)
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line = []
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# Add remaining words if any
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if line:
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subtitle = {
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"word": " ".join(item["word"] for item in line),
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"start": line[0]["start"],
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"end": line[-1]["end"],
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"textcontents": line.copy()
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}
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subtitles.append(subtitle)
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# Remove gaps between segments by extending the previous segment's end time
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for i in range(1, len(subtitles)):
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prev_subtitle = subtitles[i - 1]
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current_subtitle = subtitles[i]
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# Extend the previous segment's end time to the start of the current segment
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prev_subtitle["end"] = current_subtitle["start"]
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return subtitles
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def format_time(seconds):
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hours = math.floor(seconds / 3600)
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seconds %= 3600
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minutes = math.floor(seconds / 60)
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seconds %= 60
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milliseconds = round((seconds - math.floor(seconds)) * 1000)
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seconds = math.floor(seconds)
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formatted_time = f"{hours:02d}:{minutes:02d}:{seconds:01d},{milliseconds:03d}"
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return formatted_time
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def generate_subtitle_file(language, segments, input_video_name):
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subtitle_file = f"
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text = ""
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for index, segment in enumerate(segments):
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segment_start = format_time(segment['start'])
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segment_end = format_time(segment['end'])
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text += f"{str(index+1)} \n"
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text += f"{segment_start} --> {segment_end} \n"
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text += f"{segment['word']} \n"
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text += "\n"
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f = open(subtitle_file, "w", encoding='utf8')
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f.write(text)
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f.close()
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return subtitle_file
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def split_srt_file(input_file, max_chars=3000):
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# Read the contents of the SRT file
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with open(input_file, 'r', encoding='utf-8') as file:
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content = file.read()
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file.close()
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# Split the content into individual subtitles
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subtitles = content.strip().split('\n\n')
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# Prepare to write the split files
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output_files = []
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current_file_content = ''
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current_file_index = 1
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for subtitle in subtitles:
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# Check if adding this subtitle would exceed the character limit
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if len(current_file_content) + len(subtitle) + 2 > max_chars: # +2 for \n\n
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# Write the current file
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output_file_name = f'
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with open(output_file_name, 'w', encoding='utf-8') as output_file:
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output_file.write(current_file_content.strip())
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output_files.append(output_file_name)
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# Prepare for the next file
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current_file_index += 1
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current_file_content = subtitle + '\n\n'
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else:
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# If it fits, add the subtitle
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current_file_content += subtitle + '\n\n'
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# Write any remaining content to a new SRT file
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if current_file_content:
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output_file_name = f'
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with open(output_file_name, 'w', encoding='utf-8') as output_file:
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output_file.write(current_file_content.strip())
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output_files.append(output_file_name)
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return output_files
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def transcribe(mp3_file):
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print("transcribe")
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wordlevel_info=word_level_transcribe(mp3_file)
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subtitles = create_subtitles(wordlevel_info)
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subtitle_file = generate_subtitle_file('fa', subtitles, 'video_subtitled')
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srt_list = split_srt_file(subtitle_file)
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return srt_list
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from faster_whisper import WhisperModel
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import math
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def word_level_transcribe(audio, max_segment_duration=2.0): # Set your desired max duration here
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model = WhisperModel("tiny", device="cpu", local_files_only=True)
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segments, info = model.transcribe(audio, vad_filter=True, vad_parameters=dict(min_silence_duration_ms=1500), word_timestamps=True, log_progress=True)
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segments = list(segments) # The transcription will actually run here.
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wordlevel_info = []
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for segment in segments:
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for word in segment.words:
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print("[%.2fs -> %.2fs] %s" % (word.start, word.end, word.word))
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wordlevel_info.append({'word':word.word,'start':word.start,'end':word.end})
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return wordlevel_info
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def create_subtitles(wordlevel_info):
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punctuation_marks = {'.', '!', '?', ',', ';', ':', '—', '-', '。', '!', '?'} # Add/remove punctuation as needed
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subtitles = []
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line = []
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for word_data in wordlevel_info:
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line.append(word_data)
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current_word = word_data['word']
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# Check if current word ends with punctuation or line reached 5 words
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ends_with_punct = current_word and (current_word[-1] in punctuation_marks)
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if ends_with_punct or len(line) == 5:
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# Create a new subtitle segment
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subtitle = {
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"word": " ".join(item["word"] for item in line),
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"start": line[0]["start"],
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"end": line[-1]["end"],
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"textcontents": line.copy()
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}
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subtitles.append(subtitle)
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line = []
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# Add remaining words if any
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if line:
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subtitle = {
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"word": " ".join(item["word"] for item in line),
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"start": line[0]["start"],
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"end": line[-1]["end"],
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"textcontents": line.copy()
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}
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subtitles.append(subtitle)
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# Remove gaps between segments by extending the previous segment's end time
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for i in range(1, len(subtitles)):
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prev_subtitle = subtitles[i - 1]
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current_subtitle = subtitles[i]
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# Extend the previous segment's end time to the start of the current segment
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prev_subtitle["end"] = current_subtitle["start"]
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return subtitles
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def format_time(seconds):
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hours = math.floor(seconds / 3600)
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seconds %= 3600
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minutes = math.floor(seconds / 60)
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seconds %= 60
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milliseconds = round((seconds - math.floor(seconds)) * 1000)
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seconds = math.floor(seconds)
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formatted_time = f"{hours:02d}:{minutes:02d}:{seconds:01d},{milliseconds:03d}"
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return formatted_time
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def generate_subtitle_file(language, segments, input_video_name):
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subtitle_file = f"sub-{input_video_name}.{language}.srt"
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text = ""
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for index, segment in enumerate(segments):
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segment_start = format_time(segment['start'])
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segment_end = format_time(segment['end'])
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text += f"{str(index+1)} \n"
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text += f"{segment_start} --> {segment_end} \n"
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text += f"{segment['word']} \n"
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text += "\n"
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f = open(subtitle_file, "w", encoding='utf8')
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f.write(text)
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f.close()
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return subtitle_file
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def split_srt_file(input_file, max_chars=3000):
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# Read the contents of the SRT file
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with open(input_file, 'r', encoding='utf-8') as file:
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content = file.read()
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file.close()
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# Split the content into individual subtitles
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subtitles = content.strip().split('\n\n')
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# Prepare to write the split files
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output_files = []
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current_file_content = ''
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current_file_index = 1
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for subtitle in subtitles:
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# Check if adding this subtitle would exceed the character limit
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if len(current_file_content) + len(subtitle) + 2 > max_chars: # +2 for \n\n
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# Write the current file
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output_file_name = f'split_{current_file_index}.srt'
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with open(output_file_name, 'w', encoding='utf-8') as output_file:
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output_file.write(current_file_content.strip())
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output_files.append(output_file_name)
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# Prepare for the next file
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current_file_index += 1
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current_file_content = subtitle + '\n\n'
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else:
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# If it fits, add the subtitle
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current_file_content += subtitle + '\n\n'
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# Write any remaining content to a new SRT file
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if current_file_content:
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output_file_name = f'split_{current_file_index}.srt'
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with open(output_file_name, 'w', encoding='utf-8') as output_file:
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output_file.write(current_file_content.strip())
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output_files.append(output_file_name)
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return output_files
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def transcribe(mp3_file):
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print("transcribe")
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wordlevel_info=word_level_transcribe(mp3_file)
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subtitles = create_subtitles(wordlevel_info)
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subtitle_file = generate_subtitle_file('fa', subtitles, 'video_subtitled')
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srt_list = split_srt_file(subtitle_file)
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return srt_list
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