I've confirmed that this enhancement smoothens playback completely when
working with multiple clips, .png's, title clips, and others overlapping
each other on different tracks in the timeline.
There has been a bug I'd reported on this a while back (see bug
https://bugs.kde.org/show_bug.cgi?id=361360). Before I close it, can
anyone else who uses the git master build (whether on Arch or through
the ppa for Ubuntu) confirm that this new change works: that you don't
experience any lag in playback when clips are overlapping each other in
the timeline?
Thanks.
On 07/19/2016 05:00 AM, [email protected] wrote:
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Today's Topics:
1. Track compositing changes (Jean-Baptiste Mardelle)
2. Three Cheers to the automatic project backup...!
(Harald Albrecht)
----------------------------------------------------------------------
Message: 1
Date: Tue, 19 Jul 2016 00:17:55 +0200
From: Jean-Baptiste Mardelle <[email protected]>
To: kdenlive <[email protected]>
Subject: [kdenlive] Track compositing changes
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8; format=flowed
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
------------------------------
Message: 2
Date: Tue, 19 Jul 2016 12:20:49 +0200
From: Harald Albrecht <[email protected]>
To: Kdenlive <[email protected]>
Subject: [kdenlive] Three Cheers to the automatic project backup...!
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi,
the automatic project backup just saved me of having reconstruct more
than half an hour worth of work, due to another ugly git master timeline
spacer tool bug.
The spacer tool still behaves unreliable, totally destroying projects
but you notice only on project reload! A sign of the malfunction is that
when you move a complex set of clips and transitions, suddenly the whole
group jumps around instead of moving correctly with the mouse, sometimes
sticking to some place. However, everything looks fine until you save
and reload: a lot of clip and transition copies, some clips and
transitions lost, or maybe hidden beneath others.
The upside is, backups were to my rescue. So thanks for them!
Best regards,
Harald
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