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

Morten W. Petersen morphex at gmail.com
Wed Aug 8 16:00:32 EEST 2018

On Wed, Aug 8, 2018 at 8:50 AM, Joel Roth <joelz at pobox.com> wrote:

> Morten W. Petersen wrote:

> > Ah, Perl, OK. 🙂
> Better than okay, it's wonderful! Changed my life, it has.

OK.  Good for you. :)

> > 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?

I guess that depends on how focused you are, and how lazy/smart you are.

Python has bindings for GUI widgets for example.

As for me, I have a lot of video stored on in Google Drive.  This is because
I don't have a lot of local storage.

I was thinking about creating a local NAS/fileserver, but I've had to
other things in life.

But say I had access to a server, and had videos stored there.  Then I could
find some streaming server, and create a small trimming client in for
HTML, Javascript and CSS.

I just need to store the times locally, then these could be pushed back to
server, which runs fftrim in batch mode and that's that.

Or, I could skip fftrim, stream videos from my Google Drive, save the video
I want to keep locally, delete the raw footage and then upload the video I
want to preserve.

But anyway, I have a lot of things to think about now, so I'm not going to
entertain the idea of creating a GUI any further at this point.

> > 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.

Ah yes.  I've played with Linux since maybe the middle of the
nineties, and never really learned sed, awk etc. at any advanced

The commando-line, with pipes etc. is powerful and convenient.


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