Hi everyone,
I just commited a change to MLT and Kdenlive that enable a new transition
and a new effect for compositing and transform.
I know it is a bit late to introduce such change so close to the 16.08
release but it should fix a major slowdown issue we were experiencing since
the introduction of the track compositing feature (1). This should also
enable us (with another pending patch) to fix the titles being pixelated in
some situations (2).
This change replaces the frei0r.cairoblend transition that was used to
create transparency between tracks with a new transition called qtblend.
This is currently only enabled on newly created projects, when you have the
latest MLT git master.
This new transition should bring a great speed improvement in situations
where several non transparent clips were stacked on different tracks.
The new qtblend filter, called "Transform" in effect stack brings the same
features as the affine (position and zooom) filter, but has a better
handling of alpha transparency and supports the recent animated keyframe
feature allowing curved moves.
Feedback and testing is welcome.
For *ubuntu users, our git master PPA (if you want to take the risk) should
be updated in a few hours with the changes.
Regards,
jb
(1) https://bugs.kde.org/show_bug.cgi?id=361360
(2) https://bugs.kde.org/show_bug.cgi?id=364891
(3) https://launchpad.net/~kdenlive/+archive/ubuntu/kdenlive-master
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