#9379: v360 filter with alpha_mask and dfisheye output
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Reporter: Michael | Type: defect
Koch |
Status: new | Priority: normal
Component: avfilter | Version: git-
| master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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There is a small bug in the v360 filter with dfisheye output if the
alpha_mask=1 option is used. A vertical line in the left half is made
transparent.
In this example I'm filling the transparent pixels with red color to show
the problem:
ffmpeg -f lavfi -i color=white:s=800x400 -f lavfi -i color=red:s=800x400
-lavfi [0]v360=e:dfisheye:alpha_mask=1[a],[1][a]overlay -frames 1 -y
out.png
Suggestion for improvement: For fisheye and dfisheye output, there should
be an option to make the output circular and fill the outer area
transparent. In most cases the outer area of the circle is not required,
and it might become faster.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9379>
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