如何使用Python获取有效的毫秒数

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英文:

How to get a valid milliseconds using Python

问题

我明白了，你想将两位数的毫秒转换为三位数的毫秒。你可以使用以下代码：

  1. import pysubs2
  3. subs = pysubs2.load("my_subtitles.srt", encoding="utf-8")
  4. for line in subs:
  5.     line.start = line.start.replace(microsecond=line.start.microsecond * 100)
  6.     line.end = line.end.replace(microsecond=line.end.microsecond * 100)
  8. subs.save("Output_subtitles.srt")

这将把所有的时间戳的毫秒部分转换为三位数。

英文:

I have a subtitle of a two-digit milliseconds, how do I get a valid three-digit milliseconds?

example before

  1. 1
  2. 00:00:06,10 --> 00:00:08,05.
  3. Let go, let go.
  5. 2
  6. 00:00:24,21 --> 00:00:29,24.
  7. This is Dateline: Springfield.
  9. 3
  10. 00:00:30,08 --> 00:00:32,18.
  11. Homer and Marge were
  13. 4
  14. 00:00:40,03 --> 00:00:45,08.
  15. high school sweethearts.
  17. 5
  18. 00:00:45,13 --> 00:00:49,05.
  19. She saved me from a dateless prom.

after , using Subtitle Edit It gives you a valid milliseconds

  1. 1
  2. 00:00:06,417 --> 00:00:08,208
  3. Let go, let go.
  5. 2
  6. 00:00:24,875 --> 00:00:29,999
  7. This is Dateline: Springfield.
  9. 3
  10. 00:00:30,333 --> 00:00:32,750
  11. Homer and Marge were
  13. 4
  14. 00:00:40,125 --> 00:00:45,333
  15. high school sweethearts.
  17. 5
  18. 00:00:45,542 --> 00:00:49,208
  19. She saved me from a dateless prom.

I used a script pysubs2 https://pypi.org/project/pysubs2/

  1. import pysubs2
  2. subs = pysubs2.load("my_subtitles.srt", encoding="utf-8")
  3. subs.shift(s=0.0)
  4. for line in subs:
  5.     line.text = "{\\be1}" + line.text
  6. subs.save("Output_subtitles.srt")

Only supplies a zero at the end of the timestamp

00:00:06,10 --> 00:00:08,05 to 00:00:06,100 --> 00:00:08,050

Note I know code provides seconds and milliseconds
But all I want is to calculate the duration milliseconds
like use Subtitle Edit

答案1

得分: 0

以下是已翻译的代码部分：

  1. import math
  2. import re
  4. subtitles = """
  5. 1
  6. 00:00:06,10 --> 00:00:08,05.
  7. Let go, let go.
  9. 2
  10. 00:00:24,21 --> 00:00:29,24.
  11. This is Dateline: Springfield.
  13. 3
  14. 00:00:30,08 --> 00:00:32,18.
  15. Homer and Marge were
  17. 4
  18. 00:00:40,03 --> 00:00:45,08.
  19. high school sweethearts.
  21. 5
  22. 00:00:45,13 --> 00:00:49,05.
  23. She saved me from a dateless prom.
  24. """
  26. def modify_sub_match(match):
  27.     fps = 24  # 设置 fps 的值，根据不同的值进行调整！
  29.     # 根据 fps 计算毫秒
  30.     miliseconds = math.floor(1000 * int(match.group(2)) / fps) - 1
  32.     # 返回匹配组1，即 xx:xx:xx，连接计算出的毫秒并格式化为带有前导零的形式，以防值小于100
  33.     return f"{match.group(1)}{miliseconds:03d}"
  35. # (\d{2}:\d{2}:\d{2},)(\d{2}) 是一个正则表达式，用于匹配 xx:xx:xx,xx
  36. modified_subtitles = re.sub(r"(\d{2}:\d{2}:\d{2},)(\d{2})", modify_sub_match, subtitles)
  38. # 打印 `modified_subtitles` 的值
  39. print(modified_subtitles)
  41. # 将 `modified_subtitles` 保存到 output_subtitles.srt
  42. with open("output_subtitles.srt", "w") as file:
  43.     file.write(modified_subtitles)

希望这对你有帮助！

英文:

What you want can be done with regular expression and re.sub from the standard python library.

  1. import math
  2. import re
  5. subtitles = """
  6. 1
  7. 00:00:06,10 --> 00:00:08,05.
  8. Let go, let go.
  10. 2
  11. 00:00:24,21 --> 00:00:29,24.
  12. This is Dateline: Springfield.
  14. 3
  15. 00:00:30,08 --> 00:00:32,18.
  16. Homer and Marge were
  18. 4
  19. 00:00:40,03 --> 00:00:45,08.
  20. high school sweethearts.
  22. 5
  23. 00:00:45,13 --> 00:00:49,05.
  24. She saved me from a dateless prom.
  25. """
  28. def modify_sub_match(match):
  29.     fps = 24  # set the value for fps, adjsut for values different from 24!
  31.     # calculate miliseconds based on fps
  32.     miliseconds = math.floor(1000 * int(match.group(2)) / fps) - 1
  34.     # return the match group 1, i.e: xx:xx:xx, concatenate the calculated miliseconds
  35.     # and format with a leading zeros, in case the value is less than 100
  36.     return f"{match.group(1)}{miliseconds:03d}"
  39. # (\d{2}:\d{2}:\d{2},)(\d{2}) is a regular expresion that matches xx:xx:xx,xx
  40. modified_subtitles = re.sub(r"(\d{2}:\d{2}:\d{2},)(\d{2})", modify_sub_match, subtitles)
  42. # print the value of `modified_subtitles`
  43. print(modified_subtitles)
  45. # save `modified_subtitles` to output_subtitles.srt
  46. with open("output_subtitles.srt", "w") as file:
  47.     file.write(modified_subtitles)

huangapple
  • 本文由 发表于 2023年6月9日 03:11:22
  • 转载请务必保留本文链接：https://go.coder-hub.com/76435020.html
  • milliseconds
  • python
  • subtitle
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