#8802: Incorrect gif generation on ppc64le
-------------------------------------+-------------------------------------
Reporter: Underpaid | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Using palettes to create gifs produces output with single-pixel vertical
columns between transparent space. (Creating gifs with the more
rudimentary "''ffmpeg -i file.mp4 -ss 1 -t 4 -r 480:272 output.gif
-hide_banner''" does work, however.)
To recreate on a ppc64le environment:
{{{
ffmpeg -v warning -ss 1 -t 4 -i file.mp4 -vf
"fps=15,scale=480:-1:flags=lanczos,palettegen" -y
"/path/to/temporary_palette"
}}}
{{{
ffmpeg -v warning -ss 1 -t 4 -i file.mp4 -i /path/to/temporary_palette
-lavfi "fps=15,scale=480:-1:flags=lanczos [x]; [x][1:v] paletteuse" -y
output.gif
}}}
The output creates a gif with thin columns which appear to have some color
and animation data.
Sample files are attached.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8802>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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