I don't think that changing the ffmpeg version is something that need
many QA work. For 1.0 and 1.1 we always used a ffmpeg trunk version (to
get the -vf option). I have never encountered a problem with the ffmpeg
version with matterhorn.
By the way the recent versions have a better multi-threading support,
just as an additional bonus for switching.
Rüdiger
Am 04.05.2011 18:33, schrieb Christopher Brooks:
On Wed, 04 May 2011 17:37:51 +0200
Ruediger Rolf<[email protected]> wrote:
Hi list,
in our local 1.1 system we added a new workflow that creates videos
in different qualities for different internet bandwith:
http://video.virtuos.uni-osnabrueck.de:8080/engage/ui/watch.html?id=195
Change the "Quality" setting in the lower right to see the different
qualities.
We would like to too add this feature to the trunk too, but the
creation of the different qualities requires a more recent ffmpeg
version that supports the -vf (video filter) option. With -vf scale
it is possible use different resolutions for each quality and still
keep the correct aspect ratio.
I added an additonal workflow definition that encodes the video in
different qualities. If we keep our ffmpeg version these videos might
get the wrong aspect ratio if they are not in 4:3 ratio.
Any objections against an update of ffmpeg?
Rüdiger
I like the idea of upgrading to a newer version, but it means a big qa
effort.....
Chris
--
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Rüdiger Rolf, M.A.
Universität Osnabrück - Zentrum virtUOS
Heger-Tor-Wall 12, 49069 Osnabrück
Telefon: (0541) 969-6511 - Fax: (0541) 969-16511
E-Mail: [email protected]
Internet: www.virtuos.uni-osnabrueck.de
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