https://bugs.kde.org/show_bug.cgi?id=369582

Aurelia <aurelia.gourb...@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |aurelia.gourb...@gmail.com

--- Comment #3 from Aurelia <aurelia.gourb...@gmail.com> ---
Hi all! 

I was on my way to create on new bug report, but I think I am faceting the same
issue as Pascal.

First:
I am running a Ubuntu Studio 16.04 up to date.

I updated kdenlive from your PPA:
Kdenlive: 
Version: 16.08.1
Using:
KDE Frameworks 5.18.0
Qt 5.5.1 (built against 5.5.1)
The xcb windowing system

I can reproduce the following issue:
I add 2 clips on a brand new project, then add a transition, when I click on
preview => kdenlive crashes.
As Pascal , the rendering stops when the transition came without crash . When I
remove the transition the rendering is good until the end.

I also reproduced this issue on 2 differents computer (one using a virtualbox).

Always reproductible except some transitions: 

diaporama: ok
affine : ok
transition par balayage : ok
dissoudre: ok 

I ran kdenlive with gdb and got the following stack traces:

addition :
Thread 65 "RenderThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff8a5c6700 (LWP 1859)]
0x00007fffae46830d in addition::update(double, unsigned int*, unsigned int
const*, unsigned int const*) () from /usr/lib/frei0r-1/addition.so

alphaatop:
Thread 15 "RenderThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff8a5c6700 (LWP 1884)]
0x00007fff88e4428f in alphaatop::update(double, unsigned int*, unsigned int
const*, unsigned int const*) () from /usr/lib/frei0r-1/alphaatop.so

alphain:
Thread 15 "RenderThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff8a5c6700 (LWP 1911)]
0x00007fff88fc227f in alphain::update(double, unsigned int*, unsigned int
const*, unsigned int const*) () from /usr/lib/frei0r-1/alphain.so

burn:
Thread 15 "RenderThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff8a5c6700 (LWP 1942)]
0x00007fff88fc2276 in burn::update(double, unsigned int*, unsigned int const*,
unsigned int const*) () from /usr/lib/frei0r-1/burn.so

cairo affine blend
Thread 14 "RenderThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff8ede1700 (LWP 1970)]
0x00007fff8ede385f in frei0r_cairo_premultiply_rgba ()
   from /usr/lib/frei0r-1/cairoaffineblend.so

difference
Thread 14 "RenderThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff8eddf700 (LWP 2001)]
0x00007fff8ede4292 in difference::update(double, unsigned int*, unsigned int
const*, unsigned int const*) () from /usr/lib/frei0r-1/difference.so

softlight:
Thread 26 "RenderThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff89fcc700 (LWP 2038)]
0x00007fff8812d286 in softlight::update(double, unsigned int*, unsigned int
const*, unsigned int const*) () from /usr/lib/frei0r-1/softlight.so

saturation:
Thread 14 "RenderThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff8edde700 (LWP 2062)]
0x00007fff8ede3ad7 in saturation::update(double, unsigned int*, unsigned int
const*, unsigned int const*) () from /usr/lib/frei0r-1/saturation.so

Hope my comment will help to resolve this issue!
Fell free to ask me to do some additionnals tests.

Aurélia

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