[FFmpeg-user] rounding errors in v360 filter

[Michael Koch]

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

Please have a look at the output image and you will see what I mean. 
FFmpeg version is 3 days old.

Michael