[FFmpeg-user] V360 filter

[Michael Koch]

Paul,

>
>> v_fov is limited to 90°, that's not enough for little planet.
> I increased it.

ok, I will test it as soon as it's available at Zeranoe.

I think the field of view isn't correct in the stereographic output.

Here is a script for making really nice test images, for measuring field 
of view:


set "IN=1200.png"                   :: Test pattern from 
http://www.paulbourke.net/dome/testpattern/1200.png
set "OUT=double_fisheye_test.png"   :: Double fisheye test image

ffmpeg -i %IN% -i %IN% -lavfi 
"[0]transpose=1[left];[1]transpose=2,geq=r='255-r(X,Y)':g='255-g(X,Y)':b='255-b(X,Y)'[right];[left][right]hstack" 
-y %OUT%

set "IN=double_fisheye_test.png"
set "OUT=equirectangular_test.png"  :: Equirectangular test image

ffmpeg -i %IN% -lavfi "v360=input=dfisheye:output=e:pitch=90" -y %OUT%

Michael