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def captions_and_translations_to_srt(captions_and_translations):
output = StringIO.StringIO()
for i in range(len(captions_and_translations)):
translation_to_srt(captions_and_translations[i][1],
captions_and_translations[i][0],
i, output)
srt = output.getvalue()
output.close()
return srt
def translation_to_srt(translation, video_caption, index, output):
subtitle_to_srt_impl(video_caption.caption_text if translation is None \
else translation.translation_text,
video_caption, index, output)
def subtitle_to_srt_impl(text, video_caption, index, output):
output.write(str(index + 1))
output.write("\n")
write_srt_time_line(video_caption, output)
output.write(text)
output.write("\n\n")
def write_srt_time_line(video_caption, output):
write_srt_time(video_caption.start_time, output)
output.write(" --> ")
write_srt_time(video_caption.end_time, output)
output.write("\n")
def write_srt_time(seconds, output):
seconds_int = int(seconds)
write_padded_num((seconds_int / 3600) % 60, 2, output)
output.write(":")
write_padded_num((seconds_int / 60) % 60, 2, output)
output.write(":")
write_padded_num(seconds_int % 60, 2, output)
output.write(",")
write_padded_num(int(seconds * 1000) % 1000, 3, output)
def write_padded_num(num, numchars, output):
strnum = str(num)
numzeros = numchars - len(strnum)
for i in range(numzeros):
output.write("0")
output.write(strnum)
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