[FFmpeg-user] MP4 with 9 subtitle streams

[Mark Filipak]

On Sat, Sep 23, 2023 at 1:09 PM Paul B Mahol <onemda at gmail.com> wrote:
> On Sat, Sep 23, 2023 at 7:05 PM Mark Filipak <markfilipak.imdb at gmail.com>
> wrote:
-snip-
> > What is TTXT format? Do you know how I can get specifications?
> >
>
> It is behind paywalls.

Sorry. I brought up an OT issue. I don't really care about TTXT. I
have SRTs that work. I'll use them as templates.

The question is this: How can I use ffmpeg to put SRT subs into MP4?
Is there a direct parameter? Is there a library call similar to
'libx265 -x265-params'?