Sync subtitles
Sync subtitles
You are encouraged to solve this task according to the task description, using any language you may know.
Sync subtitles
Sometimes, when you download a movie, the subtitles are out of sync with the audio in this movie. Video players like VLC solve the problem, but it must be done manually.
Make a program that takes the "movie.srt" file, and synchronizes the subtitles "n" seconds.
- Try to fast-forward the subtitles by 9 seconds.
- Try rolling back the subtitles by 9 seconds.
Take the excerpt from the following subtitles file as an example:
movie.srt
1 00:01:31,550 --> 00:01:36,347 Four billion years ago, the first marine life forms. 2 00:01:36,555 --> 00:01:42,019 First came the fish...then slowly other life forms evolved. 3 00:01:42,144 --> 00:01:43,979 Therefore, our ancestors... 4 00:01:43,979 --> 00:01:45,898 ...came from fish. 5 00:01:46,232 --> 00:01:47,608 Everyone, come and see this. 6 00:01:47,733 --> 00:01:50,361 Cretaceous Tyrannosaurus. 7 00:01:50,736 --> 00:01:52,488 Ferocious! 8 00:01:58,035 --> 00:01:58,869 Red, 9 00:01:59,203 --> 00:02:00,079 Pong! 10 00:02:02,540 --> 00:02:03,999 Isn't this a gecko? 11 00:02:04,416 --> 00:02:07,419 How else can I get a 15 ton T-Rex in here? 12 00:02:07,503 --> 00:02:11,048 With our advanced technology, I shrank it down.
Amazing Hopper
#include <basico.h>
algoritmo
fd=0
abrir para leer ( "movie.srt", fd )
iterar
s="", t1=0, t2=0, s1=0, s2=0
usando '1000', leer línea desde 'fd', mover a 's'
cuando ( "-->", está exactamente en 's' ){
[1:8] obtener de 's', ---copiar en 's1'---
convertir a segundos, sumarle '9', convertir a hora, guardar en 't1'
[18:25] obtener de 's', ---copiar en 's2'---
convertir a segundos, sumarle '9', convertir a hora, guardar en 't2'
transformar(s1,t1,s), guardar en 's'
transformar(s2,t2,s), guardar en 's'
}
imprimir ( s, "\n")
mientras ' no sea fin de archivo (fd ) '
cerrar archivo 'fd'
terminar
- Output:
$ hopper3 basica/modsrt.bas > movie_corrected.srt $ cat movie_corrected.srt 1 00:01:40,550 --> 00:01:45,347 Four billion years ago, the first marine life forms. 2 00:01:45,555 --> 00:01:51,019 First came the fish...then slowly other life forms evolved. 3 00:01:51,144 --> 00:01:52,979 Therefore, our ancestors... 4 00:01:52,979 --> 00:01:54,898 ...came from fish. 5 00:01:55,232 --> 00:01:56,608 Everyone, come and see this. 6 00:01:56,733 --> 00:01:59,361 Cretaceous Tyrannosaurus. 7 00:01:59,736 --> 00:02:01,488 Ferocious! 8 00:02:07,035 --> 00:02:07,869 Red, 9 00:02:08,203 --> 00:02:09,079 Pong! 10 00:02:11,540 --> 00:02:12,999 Isn't this a gecko? 11 00:02:13,416 --> 00:02:16,419 How else can I get a 15 ton T-Rex in here? 12 00:02:16,503 --> 00:02:20,048 With our advanced technology, I shrank it down.
Phix
Needed a bugfix to adjust_timedate() for time-only handling, in that a y,m,d of 0,0,0 pre-dates the introduction of the Gregorian calendar. There was also a floor(milliseconds) which should have been/is now round(milliseconds). Fixes can be grabbed from github if needed.
requires("1.0.6") -- (a time-only handling bugfix in adjust_timedate)
constant movie_srt = `
1
00:01:31,550 --> 00:01:36,347
Four billion years ago,
00:01:36,555 --> 00:01:42,019
00:01:42,144 --> 00:01:43,979
00:01:43,979 --> 00:01:45,898
00:01:46,232 --> 00:01:47,608
00:01:47,733 --> 00:01:50,361
00:01:50,736 --> 00:01:52,488
00:01:58,035 --> 00:01:58,869
00:01:59,203 --> 00:02:00,079
00:02:02,540 --> 00:02:03,999
00:02:04,416 --> 00:02:07,419
00:02:07,503 --> 00:02:11,048
With our advanced technology, I shrank it down.
`,
sep = ` --> `,
fmt = `hh:mm:ss,ms`
include timedate.e
for line in split(movie_srt,'\n') do
if match(sep,line) then
line = split(line,sep)
for i,t in line do
timedate td = parse_date_string(t,{fmt})
line[i] = format_timedate(adjust_timedate(td,9),fmt)
end for
line = join(line,sep)
end if
printf(1,"%s\n",line)
end for
- Output:
1 00:01:40,550 --> 00:01:45,347 Four billion years ago, 00:01:45,555 --> 00:01:51,019 00:01:51,144 --> 00:01:52,979 00:01:52,979 --> 00:01:54,898 00:01:55,232 --> 00:01:56,608 00:01:56,733 --> 00:01:59,361 00:01:59,736 --> 00:02:01,488 00:02:07,035 --> 00:02:07,869 00:02:08,203 --> 00:02:09,079 00:02:11,540 --> 00:02:12,999 00:02:13,416 --> 00:02:16,419 00:02:16,503 --> 00:02:20,048 With our advanced technology, I shrank it down.
Wren
import "./date" for Date
import "./ioutil" for File, FileUtil
var syncSubtitles = Fn.new { |fileIn, fileOut, secs|
var nl = FileUtil.lineBreak
var fmt = "hh|:|MM|:|ss|,|ttt"
var f = File.create(fileOut)
for (line in FileUtil.readLines(fileIn)) {
if (line.contains("-->")) {
var start = line[0..11]
var startDate = Date.parse(start, fmt).addSeconds(secs)
start = startDate.format(fmt)
var end = line[17..28]
var endDate = Date.parse(end, fmt).addSeconds(secs)
end = endDate.format(fmt)
f.writeBytes(start + " --> " + end + nl)
} else {
f.writeBytes(line + nl)
}
}
f.close()
}
System.print("After fast-forwarding 9 seconds:\n")
syncSubtitles.call("movie.srt", "movie_corrected.srt", 9)
System.print(File.read("movie_corrected.srt"))
System.print("After rolling-back 9 seconds:\n")
syncSubtitles.call("movie.srt", "movie_corrected2.srt", -9)
System.print(File.read("movie_corrected2.srt"))
- Output:
After fast-forwarding 9 seconds: 1 00:01:40,550 --> 00:01:45,347 Four billion years ago, the first marine life forms. 2 00:01:45,555 --> 00:01:51,019 First came the fish...then slowly other life forms evolved. 3 00:01:51,144 --> 00:01:52,979 Therefore, our ancestors... 4 00:01:52,979 --> 00:01:54,898 ...came from fish. 5 00:01:55,232 --> 00:01:56,608 Everyone, come and see this. 6 00:01:56,733 --> 00:01:59,361 Cretaceous Tyrannosaurus. 7 00:01:59,736 --> 00:02:01,488 Ferocious! 8 00:02:07,035 --> 00:02:07,869 Red, 9 00:02:08,203 --> 00:02:09,079 Pong! 10 00:02:11,540 --> 00:02:12,999 Isn't this a gecko? 11 00:02:13,416 --> 00:02:16,419 How else can I get a 15 ton T-Rex in here? 12 00:02:16,503 --> 00:02:20,048 With our advanced technology, I shrank it down. After rolling-back 9 seconds: 1 00:01:22,550 --> 00:01:27,347 Four billion years ago, the first marine life forms. 2 00:01:27,555 --> 00:01:33,019 First came the fish...then slowly other life forms evolved. 3 00:01:33,144 --> 00:01:34,979 Therefore, our ancestors... 4 00:01:34,979 --> 00:01:36,898 ...came from fish. 5 00:01:37,232 --> 00:01:38,608 Everyone, come and see this. 6 00:01:38,733 --> 00:01:41,361 Cretaceous Tyrannosaurus. 7 00:01:41,736 --> 00:01:43,488 Ferocious! 8 00:01:49,035 --> 00:01:49,869 Red, 9 00:01:50,203 --> 00:01:51,079 Pong! 10 00:01:53,540 --> 00:01:54,999 Isn't this a gecko? 11 00:01:55,416 --> 00:01:58,419 How else can I get a 15 ton T-Rex in here? 12 00:01:58,503 --> 00:02:02,048 With our advanced technology, I shrank it down.