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. Sep 01, 2015 ffmpeg -i video.avi -vf 'ass=subtitle.ass' out.avi If your subtitle is in SubRip, MicroDVD or any other supported text subtitles, you have to convert it to ASS before using this filter: ffmpeg -i subtitle.srt subtitle.ass Windows users will have to ​ setup font paths to get libass to work. As I understand it video and audio codecs can be implied from file extension, but subtitles require explicit definition. If you add in the codec specification to srt then it should work. Ffmpeg -i subs.ass -c:s srt output.srt 1.

FFMpeg is the swiss army knife of video edi­tors and motion artists world­wide. Let’s take a look at one of the less­er-known (and kin­da unex­pect­ed) features.

Ffmpeg Extract Vobsub

FFmpeg can eas­i­ly extract embed­ded sub­ti­tles from videos. This com­mand will grab the default sub­ti­tle track and export it as a srt file:

What if we want to get a dif­fer­ent sub­ti­tle? First we need to fig­ure out the track num­ber for that sub­ti­tle by run­ning ffm­peg ‑i input_file. You will get an out­put that some­thing like this:

Notice the tracks are num­bered #0:2, #0:3, etc. This is the val­ue we want to pass over to the map com­mand to select the prop­er subtitle.

Removing HTML from subtitles

There are a num­ber of appli­ca­tions and online ser­vices that can strip html tags from sub­ti­tles (like HTML Stripper), but you can also solve this quick­ly with good old sed:

You can make an alias to this in your favorite shell so you don’t have to remem­ber or copy/paste it all the time. Keep in mind that the results of sed won’t be as good as a HTML strip­per and com­pa­ny, since this is just a sim­ple regex. That said, it’s usu­al­ly more than enough for subtitles.

Ffmpeg Extract Srt

Converting to other formats

While FFmpeg can get this done for you with a lim­it­ed num­ber of for­mats (depend­ing on how it was com­piled) there is a bet­ter alter­na­tive. SubtitleEdit is a handy open source appli­ca­tion that can con­vert between 200+ sub­ti­tle for­mats (and do a lot more of course).

If you want to bring those sub­ti­tles into Blender check out the SubsImport addon.

Ffmpeg Dvd Subtitles

Batch rendering is complicated

Ffmpeg Extract Subtitle From Mkv

But it does­n’t have to be! Render+ lets you set­up, run batch­es and a whole lot more from the com­fort of Blender’s interface.
Try out Render+ today!