[FFmpeg-user] ffmpeg tricks, timestamp-counter, slow motion, action camera

Joel Roth joelz at pobox.com
Wed Aug 8 09:50:26 EEST 2018

Morten W. Petersen wrote:
> Den man. 6. aug. 2018, 23.52 skrev Joel Roth <joelz at pobox.com>:
> > Morten W. Petersen wrote:
> > >
> > > I think this is interesting, and it shouldn't be difficult to write a
> > > frontend to it.
> > >
> > > If you post the code on GitHub, it would make it easier for someone to
> > > write a GUI.
> >
> > Okay, here it is, slightly cleaned up, and possibly added a
> > couple bugs :-) One thing I notice is the output files
> > are hardcoded to mp4.
> >
> > https://github.com/bolangi/fftrim
> Ah, Perl, OK. 🙂

Better than okay, it's wonderful! Changed my life, it has.

> Well I guess one can write a quick wrapper and GUI in Python, and then call
> fftrim.

In general people would want to click on a timeline to mark
their cuts. Isn't creating a GUI for that a pretty big job?

> It is file processing after all, and Perl should be good at that, I just
> never took the time to learn Perl.

Search and substitute functions in perl use syntax like vi,
ed, sed and awk. Perl regular expression syntax also began
life elsewhere, so not all new but yes there is a lot
mastering to a language.  I did try some python recently,
and found it to be fun. The indenting reminds me of working
with YAML.

have fun,


> -Morten
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Joel Roth

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