[FFmpeg-user] dvb_teletext -> .srt fails?

[Marton Balint]

On Fri, 15 Jan 2016, Roger Pack wrote:

> similar to https://lists.ffmpeg.org/pipermail/ffmpeg-user/2015-June/027029.html
> and
>
> https://trac.ffmpeg.org/ticket/3025
>
> My "quest" is to convert an dvb_teletext stream to some human readable
> (ex: .srt) format.
>
> Ex: using this file:
>
> https://trac.ffmpeg.org/attachment/ticket/3025/sbs.2.5M.ts
>
> I don't seem to be having much luck (DVBT stream).  Any feedback welcome :)
> -roger-

That DVB teletext stream does not seem to contain any subtitles. Try to 
upload a bigger part somewhere if you are sure there should be subtitles.

You can check with ffprobe if there are any actual decoded subtitles:

./ffprobe -of xml -select_streams s -show_frames

With the sample, there are none.

Regards,
Marton