On Fri, Jul 28, 2017 at 10:30 PM Jean-Baptiste Mardelle <j...@kdenlive.org>
wrote:
> On 28.07.2017 21:27, Dan Dennedy wrote:
>
> Movit-based transitions are working for me in Shotcut 17.06 on both Windows
> and macOS tested this morning. I have not tested your command line because
> I did not have convenient access to a Linux workstation at the time;
> however, I see you did not specify -mixer and instead use -track and
> -transition. What I do know that does not work is XML virtual clips -
> loading a Movit-based XML as a virtual clip in another Movit-based
> composition.
>
>
> I can crash Shotcut 17.06 on linux with a simple project:
> * Activate GPU based movit
> *Create 2 video tracks
> *put 2 clips on V1
> *overlap the 2 clips to create a transition between the 2 clips
> *put a clip over that transition in V2
> *move timeline cursor on the transition -> CRASH
>
> Picture of the project timeline attached. Let me know if you need more
> infos but on my side it is very easily reproducible.
>
>
OK, I reproduced that. However, I am not sure if it will be fixed. I am not
spending much time on these projects any more. I will try to be motivated
to at least take a look into this in the next couple of weeks.
> Best regards
>
> Jean-Baptiste
>
>
>
> On Fri, Jul 28, 2017 at 9:14 AM Jean-Baptiste Mardelle <j...@kdenlive.org>
> <j...@kdenlive.org>
> wrote:
>
>
> Hi all,
>
> Trying to work a bit with movit, I noticed it does crash when
> encountering a tractor embedded in another one. This can easily be
> reproduced in Shotcut, or in MLT with following command (it will crash
> on frame 50 when the reaching the first frame of the mix tractor:
>
> melt color:red out=200 color:blue -mix 150 -track color:green
> -transition movit.mix mix=0.5 -consumer xgl glsl.=1
>
> Crash output is :
>
> melt: filter_movit_convert.cpp:204: void build_fingerprint(mlt_service,
> mlt_frame, std::__cxx11::string*): Assertion `effect' failed.
>
> Is this a known limitation of the movit/mlt integration (does not
> support embedded tractors) or is there hope that this issue can be
> solved ? We are planning to use embedded tractors in Kdenlive to allow
> mixing in the same way as Shotcut, so I wonder if it means we can forget
> movit...
>
> Thanks & regards
>
> Jean-Baptiste
>
>
>
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