whisper-multi-model / subtitle.py
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class Subtitle:
def __init__(self, ext="srt"):
sub_dict = {
"srt": {
"coma": ",",
"header": "",
"format": self._srt_format,
},
"vtt": {
"coma": ".",
"header": "WebVTT\n\n",
"format": self._vtt_format,
},
"txt": {
"coma": "",
"header": "",
"format": self._txt_format,
},
"lrc": {
"coma": "",
"header": "",
"format": self._lrc_format,
},
}
self.ext = ext
self.coma = sub_dict[ext]["coma"]
self.header = sub_dict[ext]["header"]
self.format_fn = sub_dict[ext]["format"]
def timeformat(self, time):
hours, remainder = divmod(time, 3600)
minutes, seconds = divmod(remainder, 60)
milliseconds = (time - int(time)) * 1000
return f"{int(hours):02d}:{int(minutes):02d}:{int(seconds):02d}{self.coma}{int(milliseconds):03d}"
def seconds_to_lrc_timestamp(self, time):
minutes = int(time // 60)
secs = time % 60
return f"[{minutes:02}:{secs:06.3f}]"
def _srt_format(self, i, segment):
start_time = self.timeformat(segment['timestamp'][0])
end_time = self.timeformat(segment['timestamp'][1] if segment['timestamp'][1] else segment['timestamp'][0])
return f"{i + 1}\n{start_time} --> {end_time}\n{segment['text']}\n\n"
def _vtt_format(self, i, segment):
start_time = self.timeformat(segment['timestamp'][0])
end_time = self.timeformat(segment['timestamp'][1] if segment['timestamp'][1] else segment['timestamp'][0])
return f"{start_time} --> {end_time}\n{segment['text']}\n\n"
def _txt_format(self, i, segment):
return f"{segment['text']}\n"
def _lrc_format(self, i, segment):
start_time = self.seconds_to_lrc_timestamp(segment['timestamp'][0])
return f"{start_time}{segment['text']}\n"
def get_subtitle(self, segments):
output = self.header
for i, segment in enumerate(segments):
segment['text'] = segment['text'].lstrip()
try:
output += self.format_fn(i, segment)
except Exception as e:
print(e, segment)
return output
def write_subtitle(self, segments, output_file):
output_file_with_ext = f"{output_file}.{self.ext}"
subtitle = self.get_subtitle(segments)
with open(output_file_with_ext, 'w', encoding='utf-8') as f:
f.write(subtitle)
def write_file(output_file,subtitle):
with open(output_file, 'w', encoding='utf-8') as f:
f.write(subtitle)
def subtitle_output(inputs, chunks):
file_name = inputs.split('/')[-1].split('.')[0]
lrc_sub = Subtitle("lrc")
srt_sub = Subtitle("srt")
vtt_sub = Subtitle("vtt")
txt_sub = Subtitle("txt")
lrc = lrc_sub.get_subtitle(chunks)
srt = srt_sub.get_subtitle(chunks)
vtt = vtt_sub.get_subtitle(chunks)
txt = txt_sub.get_subtitle(chunks)
write_file(file_name+".lrc",lrc)
write_file(file_name+".srt",srt)
write_file(file_name+".vtt",vtt)
write_file(file_name+".txt",txt)
files_out = [file_name+".lrc", file_name+".srt", file_name+".vtt", file_name+".txt"]
return lrc, files_out
def text_output(inputs, text):
file_name = inputs.split('/')[-1].split('.')[0]
write_file(file_name+".txt",text)
files_out = [file_name+".txt"]
return text, files_out