On Tue, Mar 10, 2015 at 3:27 AM, Janne Liljeblad <janne.liljeb...@gmail.com>
wrote:
> Hi,
>
> I was working on JKL playback on Flowblade and decided to add
> slowmotion speeds forwards and backwards.
>
> When I did producer.set_speed(-0.2) it worked as expected giving
> slowmotion playback backwards, but doing producer.set_speed(0.2)
> resulted in stopped playback. In fact all values between 0.0 ... 1.0
> gave the same result.
>
> Is this a bug or should I set some property on producer to make this work?
>
It is not supported in the default build where CFLAG DOUBLE_MLT_POSITION is
NOT defined. I will not change the default at this time (<= a so-called 1.0
release). You can try to use the framebuffer producer to achieve that, but
to work with a tractor you will have to save a temporary MLT XML file and
supply that to framebuffer. Kdenlive and Shotcut are simply choosing to
live with that limitation for now.
P.S. Regarding a 1.0 release - there will not actually be one. I am
planning to change release versioning to match the .so major version
number. The .so major version number changes when ABI breaks. With that
said, I have thought of some things I want to do and and change for a major
new version of MLT (ala 2.0), but I have not decided when. For now, there
are still things to do, cleanup, and finish for the current major version.
Then, when I feel that is done, it will be announced as release 6.0 and
work can begin on a version 7.0 wherein we will better integrate
framebuffer's speed and direction - among other things.
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