Am 23.02.2020 um 18:20 schrieb Paul B Mahol:
On 2/23/20, Michael Koch <[email protected]> wrote:
Hi,
there seem to be some rounding (or +-1) errors in the v360 filter, when
converting from double fisheye to equirectangular. Can be reproduced as
follows:
ffmpeg -f lavfi -i color=red:size=40x40 -f lavfi -i
color=green:size=40x40 -lavfi
"[0][1]hstack,v360=input=dfisheye:output=e" -frames 1 -y out.png
Fixed.
Thank you. For testing I must wait until it becomes available on Zeranoe.
I just found a similar problem in v360 conversion from equirectangular
to fisheye, but here the problem is only in y axis. The center of the
fisheye image is half a pixel too low. In x axis it's correctly centered.
ffmpeg -f lavfi -i color=red:size=10x20 -f lavfi -i
color=green:size=20x20 -f lavfi -i color=red:size=10x20 -lavfi
"[0][1][2]hstack=inputs=3,format=rgb24,v360=input=e:output=fisheye:d_fov=270"
-frames 1 -y out.png
Michael
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