[FFmpeg-user] How do I encode DVB Subtitles?

[Wagner Patriota]

*QUESTION 1:*
How do I add a STR file to a MPEG-TS file with the "DVB subtitle codec"?
If so, could you give me a sample command line?
Thank.

I am trying:
ffmpeg -i video.ts *-i subtitle.srt* -vcodec copy -acodec copy *-scodec
dvbsub* output.ts

The stream is created because I can see it with MediaInfo, but the
subtitles don't appear!

*QUESTION 2:*
How do I use the command *slang*? I try to use it, but ffmpeg says the
command doesn't exist.

Thank you.