Umm..
Cool, I guess.
The format is AVI !?!?
eo
On Feb 16, 2011, at 9:00 PM, Tom Sharpless wrote:
I don't suppose you've been wondering what I've been up to for the
past 18 months, but...
The first member of the the Panini Version 1 suite -- Panini-Video --
is now pre-beta. It converts wide angle and fisheye video to Panini
projection, with interactive controls too numerous to mention. See
the first-ever full HD Panini video clip at http://www.youtube.com/watch?v=qKVZ7pJdCvw
.
Technically, Panini-Video unites a slightly tweaked FFmpeg (named
PPmpeg) with an all-new Panini engine running in OpenGL shader code
and supported by a Qt GUI and a lens and camera database. It runs
from the command line exactly like FFmpeg; but if you ask for the
'panini' video filter, the Panini-Video GUI pops up. Eventually I may
make the GUI come up first and run the PPmpeg part on an internal
command line; but I do like the flexibility of having the full FFmpeg
command interface available.
On my machine, max conversion rates are 5.7 fps at 1920x1280 and 14
fps at 1280x720, with H.264 in and out. Almost all the time is spent
on decoding the video to RGBA and encoding it again; the 'Panini time'
is negligible by comparison. Of course you can slow the frame rate
even more, pause, and single-step to make it easier to follow the
video with the perspective controls. Someday, if it becomes a
commercial tool, it might get proper 'animation-style' facilities to
record and replay control sequences.
In a week or two the beta source will be on SourceForge, project name
paniniperspective. During the Spring I shall be releasing betas of
two more suite members: Panini-Photo for correcting photos (not only
perspective but tca and vignetting too) at full resolution, and
Panini-
Pano for extracting high-res views from full panoramas. And even
Panini-Stitch, for very fast (but not too accurate) stitching of panos
from array cameras like Jan Martin's.
Cheers, Tom
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