36
19
I am trying to extract subtitle from video as .srt file, I used the following command:
FFMPEG -i mytestmovie.mkv -vn -an -codec:s:0.1 srt sub.srt
But, I got an error as Unrecognized option codec:s:0:1
So, can you tell me the exact command and how to extract a subtitle as .srt file in video?
vijay
Posted 2013-04-16T07:50:39.863
Reputation: 371
58
jm3
Posted 2013-04-16T07:50:39.863
Reputation: 848
2This worked for me with a MP4 file with embedded subtitles. – Rubens Mariuzzo – 2016-09-18T17:21:14.567
11This would download the first subtitle track. If there are several, use 0:s:1 to download the second one, 0:s:2 to download the third one, and so on. – Fabien Snauwaert – 2016-11-10T19:06:38.450
5@jm3 Would you happen to know any way to automatically extract all subtitle streams from a file, naming them after their language identifier (e.g. eng, fre, dut etc.)? – Fr. – 2017-12-01T00:30:40.563
why is it so slow when extracting from big MKV container (~4 gb)? – user25 – 2018-06-02T16:24:36.717
To extract more subtitles at once you have to duplicate the -map parameters for each file. Also include -c copy so that it just extracts the file without trying to process it: ffmpeg -i Movie.mkv -c copy -map 0:s:0 subs.01.srt -c copy -map 0:s:1 subs.02.srt. Anyway it will take long time because ffmpeg must read whole video file to find all parts of the subtitle streams. – Radek Pech – 2019-04-20T08:39:44.683
8
-codec:s:0:1 is incorrect. If you use -codec:s:0 then ffmpeg will use the stated codec for the first subtitle stream being passed to the output, if you use -codec:s:1 then it will use it for the second subtitle stream, etc.
You can also use -codec:s to select all output subtitle streams, or -codec:2 to select the third output stream, regardless of what it is.
You are probably confused because the -map option behaves in a different way - there, you have to select which input the selected stream comes from. (so, -map 0:s:0 would take the first subtitle stream from the first input, and feed it to the output). However, -map is for selecting which streams you want to take from the inputs; whereas most of the other options that use stream mapping are for use on the streams after they have been selected (so there's no need to specify which input file they're from), as they are passed to the output.
evilsoup
Posted 2013-04-16T07:50:39.863
Reputation: 10 085
I used:
ffmpeg -i film.mp4 -vn -an -codec:s srt film.srt
that should copy all the subtitles to the srt file. – Stuart – 2016-04-05T19:05:11.627
@Stuart it doesn't extract all subtitles – user25 – 2018-06-02T17:28:33.827
@evilsoup -codec:s so what is the point to use it if it's not going to extract all subtitles at the time? -codec:s:idx seems only this will work? but this way we have to execute this command many times to extract all subtitles – user25 – 2018-06-02T17:31:07.763
1@evilsoup -codec:s is equal to -codec:s:0 so it doesn't select all subtitles... it will extract first text track – user25 – 2018-06-02T18:15:14.660
@evilsoup Neither -codec:s nor codec:s:0 "selects" anything. Both tell ffmpeg which codec to apply to an output stream, or streams, of subtitles. The -map option is used to select the stream(s) from the source. To select all the subtitle streams, without knowing how many there are, or their indices, use -map 0:s and if there may, or may not, be any subtitles, the map can be optional, and not cause ffmpeg to fail by using -map 0:s? See the Advanced Options in the ffmpeg docs.
evilsoup:i would using the following command
E:\FFMpeg_Latest>ffmpeg -i E:\Routine\routine.mkv -vn -an -map 0:s:0 srt E:\Routine\sub.srt,it seems an error i got Unable to find a suitable output format for 'srt',can u tell me the command for extracting an subtitle in video... – vijay – 2013-04-16T09:38:51.950
2Try: ffmpeg -i E:\Routine\routine.mkv -map 0:s:0 E:\Routine\sub.srt (ffmpeg should detect that you want srt subtitles from the output file name) – evilsoup – 2013-04-16T14:31:05.017
umair:shall u tell me in command prompt – vijay – 2013-04-16T08:11:25.983
I have the same problem. Did you get this to eventually work? – Maxime Labelle – 2013-12-19T08:23:11.720