[FFmpeg-user] Slideshow with different resolutions

Paul B Mahol onemda at gmail.com
Mon Jun 5 17:44:26 EEST 2023

On Mon, Jun 5, 2023 at 4:29 PM <hydra3333 at gmail.com> wrote:

> Am 05.06.2023 um 15:06 schrieb Cecil Westerhof via ffmpeg-user:
> >> I have pictures in portrait (852x1.136) and landscape (852x639). When
> >>> using the zoompan filter to create a slideshow I always did them
> >>> separately. Is there a way to let the portrait pictures be resized
> >>> with black borders left and right, so I can use all pictures to create
> >>> one video?
> >>Have a look at the pad filter.
> >>Michael
> Best of luck with it. I'm looking at similar for our families' home
> archives.
> A mix of various formats, resolutions, auto-rotations.
> There's really smart person by the handle _AI_ who is looking at such stuff
> and has posted over on videohelp.
> Sorry don’t know about zoompan filter, there's others around for
> vapoursynth et al,
>  including a (mostly working) one called vs_transitions on github.
> I looked into it some months ago and could never get ffmpeg to auto-rotate
> and
> resize and pad reliably all at once; it had very mixed results and I ended
> up giving up.
> Advice in the usual places around the web said "do such and such" and they
> Invariably only partly did the job or didn’t work at all ☹
> Be great if an expert here could clarify and settle it with actual working
> examples.
> ... if you have working commandlines, could you please share them ?
> I did find irfanview has a "batch mode" which took a specified folder (or
> a tree IIRC)
> and auto-rotated, resized, pics only and placed stuff in a destination
> leaving the original
> intact. You could probably do something nice with it.  I have a windows
> script
> to pre-create all the right settings (there's a lot) if you need something
> to look at.
> Ffmpeg could probably do something nice with the output of that.
> In the end I gave up and went to vapoursynth (no, I do not have anything
> working) ...
> also because I wanted to include phone camera video clips in the
> slideshow,
> which is non-trivial given the multitude if issues with old formats/codecs,
> VFR conversion, framerate conversion, auto-rotate, resizing, etc.
I have everything working with FFmpeg, Vapoursynth is immature software.
Unfortunately my consultation free time have run out for this month so can
not provide free info.

> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".

More information about the ffmpeg-user mailing list