Yeah I'd recommend simple MJPEG/PCM for now as something that "works as-is"
with some limitations[1], but investing a little time and effort on things
like MOX or JPEG2000-in-MXF / Dirac-in-MXF might be wise for the future.
[1] no 4:2:2, 4:4:4, or alpha; highest qual settings are still much lower
bandwidth and presumably quality than the ProRes generation. Probably still
suitable for many purposes though.
-- brion
On Mon, Nov 10, 2014 at 11:23 AM, Andrew Lih <andrew(a)andrewlih.com> wrote:
I second what Sebastian said -- glad we could revive
Wikivideo-L to have
deeper technical discussions like this that don't annoy the multimedia-L
list.
When I have more time, I'd like to test our more of what Brion said. The
solution may be right under our nose with older, but tested, solutions like
MJPEG/PCM, though we'd still be requiring pretty fast bandwidth to deal
with them.
-Andrew
-Andrew Lih
Associate professor of journalism, American University
Email: andrew(a)andrewlih.com
WEB:
http://www.andrewlih.com
BOOK: The Wikipedia Revolution:
http://www.wikipediarevolution.com
PROJECT: Wiki Makes Video
http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Wiki_Makes_Video
On Mon, Nov 10, 2014 at 1:55 PM, Sebastiaan ter Burg <terburg(a)wikimedia.nl
wrote:
wow everyone... this is great stuff where this
thread is going! (sorry,
not really an addition to the topic discussed. But I wanted to show my
appreciation somehow...)
2014-11-10 19:52 GMT+01:00 Ralph Giles <giles(a)thaumas.net>et>:
Earlier, Brion Vibber wrote:
Apparently the US Library of Congress has been
archiving videos as
MXF (the container format that MOX is planned to be based off) with
lossless-mode JPEG 2000 for the video payload... and they're pushing
a baseline format around that for digital video preservation.
This is also the basis of the 'DCP' format used for distribution to
theatres with digital projectors, so there's simplicity in standardizing
that for archival of finished films.
Of course JPEG 2000 and MXF both specification with gratis distribution,
but I'm not aware of any patent restrictions on implementations.
-r
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