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：
import pysubs2
subs = pysubs2.load("my_subtitles.srt", encoding="utf-8")
for line in subs:
line.start = line.start.replace(microsecond=line.start.microsecond * 100)
line.end = line.end.replace(microsecond=line.end.microsecond * 100)
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
00:00:06,10 --> 00:00:08,05.
Let go, let go.
2
00:00:24,21 --> 00:00:29,24.
This is Dateline: Springfield.
3
00:00:30,08 --> 00:00:32,18.
Homer and Marge were
4
00:00:40,03 --> 00:00:45,08.
high school sweethearts.
5
00:00:45,13 --> 00:00:49,05.
She saved me from a dateless prom.
after , using Subtitle Edit It gives you a valid milliseconds
1
00:00:06,417 --> 00:00:08,208
Let go, let go.
2
00:00:24,875 --> 00:00:29,999
This is Dateline: Springfield.
3
00:00:30,333 --> 00:00:32,750
Homer and Marge were
4
00:00:40,125 --> 00:00:45,333
high school sweethearts.
5
00:00:45,542 --> 00:00:49,208
She saved me from a dateless prom.
I used a script pysubs2 https://pypi.org/project/pysubs2/
import pysubs2
subs = pysubs2.load("my_subtitles.srt", encoding="utf-8")
subs.shift(s=0.0)
for line in subs:
line.text = "{\\be1}" + line.text
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：
import math
import re
subtitles = """
1
00:00:06,10 --> 00:00:08,05.
Let go, let go.
2
00:00:24,21 --> 00:00:29,24.
This is Dateline: Springfield.
3
00:00:30,08 --> 00:00:32,18.
Homer and Marge were
4
00:00:40,03 --> 00:00:45,08.
high school sweethearts.
5
00:00:45,13 --> 00:00:49,05.
She saved me from a dateless prom.
"""
def modify_sub_match(match):
fps = 24 # 设置 fps 的值，根据不同的值进行调整！
# 根据 fps 计算毫秒
miliseconds = math.floor(1000 * int(match.group(2)) / fps) - 1
# 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
return f"{match.group(1)}{miliseconds:03d}"
# (\d{2}:\d{2}:\d{2},)(\d{2}) 是一个正则表达式，用于匹配 xx:xx:xx,xx
modified_subtitles = re.sub(r"(\d{2}:\d{2}:\d{2},)(\d{2})", modify_sub_match, subtitles)
# 打印 `modified_subtitles` 的值
print(modified_subtitles)
# 将 `modified_subtitles` 保存到 output_subtitles.srt
with open("output_subtitles.srt", "w") as file:
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.
import math
import re
subtitles = """
1
00:00:06,10 --> 00:00:08,05.
Let go, let go.
2
00:00:24,21 --> 00:00:29,24.
This is Dateline: Springfield.
3
00:00:30,08 --> 00:00:32,18.
Homer and Marge were
4
00:00:40,03 --> 00:00:45,08.
high school sweethearts.
5
00:00:45,13 --> 00:00:49,05.
She saved me from a dateless prom.
"""
def modify_sub_match(match):
fps = 24 # set the value for fps, adjsut for values different from 24!
# calculate miliseconds based on fps
miliseconds = math.floor(1000 * int(match.group(2)) / fps) - 1
# return the match group 1, i.e: xx:xx:xx, concatenate the calculated miliseconds
# and format with a leading zeros, in case the value is less than 100
return f"{match.group(1)}{miliseconds:03d}"
# (\d{2}:\d{2}:\d{2},)(\d{2}) is a regular expresion that matches xx:xx:xx,xx
modified_subtitles = re.sub(r"(\d{2}:\d{2}:\d{2},)(\d{2})", modify_sub_match, subtitles)
# print the value of `modified_subtitles`
print(modified_subtitles)
# save `modified_subtitles` to output_subtitles.srt
with open("output_subtitles.srt", "w") as file:
file.write(modified_subtitles)
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