On Dec 20, 2020, at 7:25 AM, pdr0 <[email protected]> wrote:
>
> For gif use -vf palettegen and paletteuse to reserve 1 color for
> transparency
>
> https://ffmpeg.org/ffmpeg-filters.html#palettegen-1
> https://ffmpeg.org/ffmpeg-filters.html#paletteuse
>
> You can combine the two by using -filter_complex, instead of creating a
> palette png intermediate
>
> eg.
> ffmpeg -r 12 -i toile4-4-%d.png -filter_complex
> "palettegen[PG],[0:v][PG]paletteuse" toile4.gif
>
pdr0 -- thanks for that
Suggesting both ffmpeg & imagemagick can convert a png sequence to gif
Very cool.
Following up on the documentation links provided, I wasn't able to work out
what the details of your "-filter_complex" entries were about.
I ran it against a test png seq it did work -- I got a gif that preserved the
PNG transparency -- but I got some artifacts.
Attaching both the PNG seq and the resulting GIF in PngSeq.zip (below)
(hopefully it posts)
The command I used was based on your example:
> ffmpeg -i PngSeq/Frame_%05d.png -framerate 12 -filter_complex
> "palettegen[PG],[0:v][PG]paletteuse" PngSeq.gif
Questions:
- What caused / how to avoid the artifacts?
- What is PG in your example?
Thanks again.
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