https://bugs.kde.org/show_bug.cgi?id=361087

            Bug ID: 361087
           Summary: git master 2016-03-28 Application crash when dragging
                    a clip to timeline
           Product: kdenlive
           Version: unspecified
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: User Interface
          Assignee: j...@kdenlive.org
          Reporter: evert.vors...@yandex.com

I am testing movit, and this seems to be a pretty serious bug.
I can play back 4k video in the clip Monitor just fine. It's a bit slow, but
bearable. 
Once I selected the area that I wanted to edit on, I dragged the clip to the
timeline. 

The program segfaulted. 

Here is the backtrace:

(gdb) start
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Function "main" not defined.
Make breakpoint pending on future shared library load? (y or [n]) 
Starting program: /usr/bin/kdenlive 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffdc81d700 (LWP 1402)]
[New Thread 0x7fffd6a5f700 (LWP 1403)]
[New Thread 0x7fffba0a1700 (LWP 1404)]
[New Thread 0x7fffb39f1700 (LWP 1405)]
[New Thread 0x7fffb28a7700 (LWP 1406)]
[New Thread 0x7fffb1930700 (LWP 1407)]
[New Thread 0x7fff9fde2700 (LWP 1408)]
[Thread 0x7fff9fde2700 (LWP 1408) exited]
[New Thread 0x7fff9fde2700 (LWP 1409)]
[Thread 0x7fff9fde2700 (LWP 1409) exited]
[New Thread 0x7fff9fde2700 (LWP 1410)]
[New Thread 0x7fff9e2ad700 (LWP 1411)]
[New Thread 0x7fff9d22c700 (LWP 1412)]
[New Thread 0x7fff9c819700 (LWP 1413)]
[New Thread 0x7fff8fdf0700 (LWP 1415)]
[New Thread 0x7fff8f5ef700 (LWP 1416)]
[New Thread 0x7fff8edee700 (LWP 1417)]
[New Thread 0x7fff8e37b700 (LWP 1418)]
[New Thread 0x7fff8db7a700 (LWP 1419)]
OpenGL vendor:  "NVIDIA Corporation"
OpenGL renderer:  "GeForce GTX 960/PCIe/SSE2"
OpenGL ARG_SYNC:  true
OpenGL OpenGLES:  false
[New Thread 0x7fff8d1e9700 (LWP 1420)]
[New Thread 0x7fff8c99d700 (LWP 1421)]
OpenGL vendor:  "NVIDIA Corporation"
OpenGL renderer:  "GeForce GTX 960/PCIe/SSE2"
OpenGL ARG_SYNC:  true
OpenGL OpenGLES:  false
[New Thread 0x7fff67eff700 (LWP 1422)]
[Thread 0x7fff9fde2700 (LWP 1410) exited]
Removing cache at "/home/evert/.cache/kdenlive-thumbs.kcache"
 // / processing file open
 // / processing file open: validate
Opening a document with version  0.94  /  0.94
 // / processing file validate ok
[Thread 0x7fff8edee700 (LWP 1417) exited]
[Thread 0x7fff8f5ef700 (LWP 1416) exited]
[Thread 0x7fff8fdf0700 (LWP 1415) exited]
[Thread 0x7fff9c819700 (LWP 1413) exited]
[Thread 0x7fff9e2ad700 (LWP 1411) exited]
[Thread 0x7fff9d22c700 (LWP 1412) exited]
[New Thread 0x7fff9d22c700 (LWP 1423)]
[Thread 0x7fff9d22c700 (LWP 1423) exited]
[New Thread 0x7fff9d22c700 (LWP 1424)]
***********
FOUND GUIDES:  0 
**********
[New Thread 0x7fff9e2ad700 (LWP 1425)]
[New Thread 0x7fff9c819700 (LWP 1426)]
[New Thread 0x7fff8edee700 (LWP 1427)]
[New Thread 0x7fff97408700 (LWP 1428)]
[New Thread 0x7fff96c07700 (LWP 1429)]
[New Thread 0x7fff96406700 (LWP 1430)]
[New Thread 0x7fff95c05700 (LWP 1431)]
[New Thread 0x7fff95404700 (LWP 1432)]
[New Thread 0x7fff94c03700 (LWP 1433)]
[New Thread 0x7fff94402700 (LWP 1434)]
[New Thread 0x7fff8fdf0700 (LWP 1435)]
[Thread 0x7fff9d22c700 (LWP 1424) exited]
[Thread 0x7fff8fdf0700 (LWP 1435) exited]
[New Thread 0x7fff8fdf0700 (LWP 1437)]
[Thread 0x7fff9e2ad700 (LWP 1425) exited]
[Thread 0x7fff8fdf0700 (LWP 1437) exited]
[New Thread 0x7fff8fdf0700 (LWP 1438)]
[New Thread 0x7fff9e2ad700 (LWP 1439)]
[New Thread 0x7fff9d22c700 (LWP 1440)]
[Thread 0x7fff8fdf0700 (LWP 1438) exited]
[Thread 0x7fff9d22c700 (LWP 1440) exited]
[New Thread 0x7fff9d22c700 (LWP 1441)]
[Thread 0x7fff9e2ad700 (LWP 1439) exited]
[Thread 0x7fff9d22c700 (LWP 1441) exited]
[New Thread 0x7fff9d22c700 (LWP 1442)]
[New Thread 0x7fff9e2ad700 (LWP 1443)]
[New Thread 0x7fff8fdf0700 (LWP 1444)]
[New Thread 0x7fff6490e700 (LWP 1445)]
[New Thread 0x7fff39ffc700 (LWP 1446)]
[New Thread 0x7fff397fb700 (LWP 1447)]
[New Thread 0x7fff38ffa700 (LWP 1448)]
[New Thread 0x7fff33fff700 (LWP 1449)]
[New Thread 0x7fff337fe700 (LWP 1450)]
[New Thread 0x7fff32ffd700 (LWP 1451)]
[New Thread 0x7fff327fc700 (LWP 1452)]
[New Thread 0x7fff31ffb700 (LWP 1453)]
QXcbConnection: XCB error: 8 (BadMatch), sequence: 27632, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 27653, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 27757, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32224, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32249, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32316, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32317, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32366, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32367, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32416, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32417, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32466, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32467, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32516, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32517, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32566, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32567, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32617, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32618, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32667, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32668, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32717, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32718, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32767, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32768, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32817, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32818, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32867, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32868, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32917, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32918, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32968, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 32969, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 33018, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 33019, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 33068, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 33069, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 33118, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 33119, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 33160, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 33180, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 33539, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 34065, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 34246, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 34751, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 35246, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 35732, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 36215, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 36706, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 37201, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 37698, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 38196, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 38686, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 39176, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 39668, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 40155, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 40648, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 41149, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 41642, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42133, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42631, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 43123, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 43606, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 44106, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 44596, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 45083, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 45579, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 46062, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 46559, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 47052, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 47547, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 48040, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 48533, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 49023, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 49515, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50016, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50509, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51014, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51511, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52004, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52509, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 53001, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 53493, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 53985, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 54477, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 54969, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 55469, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 56455, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 56475, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 56535, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 56584, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 56633, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 56682, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 56731, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 56780, resource id:
10488876, major code: 130 (Unknown), minor code: 3
[New Thread 0x7fff317fa700 (LWP 1456)]
[Thread 0x7fff8db7a700 (LWP 1419) exited]
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42098, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42118, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42146, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42156, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42166, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42208, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42223, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42948, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42969, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 42997, resource id:
10488876, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 43007, resource id:
10488876, major code: 130 (Unknown), minor code: 3
[New Thread 0x7fff8db7a700 (LWP 1457)]
[New Thread 0x7fff30ff9700 (LWP 1458)]
[New Thread 0x7ffe8fffd700 (LWP 1459)]
[New Thread 0x7ffe8f7fc700 (LWP 1460)]
[New Thread 0x7ffe8effb700 (LWP 1461)]
[New Thread 0x7ffe8e7fa700 (LWP 1462)]
[New Thread 0x7ffe8dff9700 (LWP 1463)]
[New Thread 0x7ffe8d7f8700 (LWP 1464)]
[New Thread 0x7ffe8cff7700 (LWP 1465)]
 / / /ADDING CLIP:  127
[Thread 0x7fff317fa700 (LWP 1456) exited]
[Thread 0x7fff9d22c700 (LWP 1442) exited]
[Thread 0x7fff31ffb700 (LWP 1453) exited]
[New Thread 0x7fff31ffb700 (LWP 1466)]
[Thread 0x7fff9e2ad700 (LWP 1443) exited]
[New Thread 0x7fff9e2ad700 (LWP 1467)]
[Thread 0x7fff9e2ad700 (LWP 1467) exited]
[New Thread 0x7fff9e2ad700 (LWP 1468)]
[New Thread 0x7fff9d22c700 (LWP 1469)]
GL error 0x501 at filter_glsl_manager.cpp:381

Thread 65 "RenderThread" received signal SIGABRT, Aborted.
[Switching to Thread 0x7fff9d22c700 (LWP 1469)]
0x00007fffef8a72a8 in raise () from /usr/lib/libc.so.6
(gdb) thread apply all bt

Thread 65 (Thread 0x7fff9d22c700 (LWP 1469)):
#0  0x00007fffef8a72a8 in raise () from /usr/lib/libc.so.6
#1  0x00007fffef8a872a in abort () from /usr/lib/libc.so.6
#2  0x00007fffd4892ac3 in
GlslManager::render_frame_texture(movit::EffectChain*, mlt_frame_s*, int, int,
unsigned char**) () from /usr/lib/mlt/libmltopengl.so
#3  0x00007fffd4895a02 in ?? () from /usr/lib/mlt/libmltopengl.so
#4  0x00007ffff6d8a058 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#5  0x00007ffff6d9ff29 in ?? () from /usr/lib/libmlt.so.6
#6  0x00007ffff6d8a007 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#7  0x00007ffff6d9d6d4 in ?? () from /usr/lib/libmlt.so.6
#8  0x00000000007013dd in ?? ()
#9  0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 64 (Thread 0x7fff9e2ad700 (LWP 1468)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007ffff6d9d95b in mlt_consumer_rt_frame () from /usr/lib/libmlt.so.6
#2  0x00007fffb969aa20 in ?? () from /usr/lib/mlt/libmltsdl.so
#3  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 62 (Thread 0x7fff31ffb700 (LWP 1466)):
#0  0x00007fffee10a3e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007ffff0347bc6 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007ffff03432dc in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 61 (Thread 0x7ffe8cff7700 (LWP 1465)):
#0  0x00007fffc172e657 in ?? () from /usr/lib/libavcodec.so.57
#1  0x00007fffc173094d in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffc1734fa5 in ?? () from /usr/lib/libavcodec.so.57
#3  0x00007fffc16e1161 in ?? () from /usr/lib/libavcodec.so.57
#4  0x00007fffc1ab17b5 in ?? () from /usr/lib/libavcodec.so.57
#5  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 60 (Thread 0x7ffe8d7f8700 (LWP 1464)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab160b in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffc1710d6e in ?? () from /usr/lib/libavcodec.so.57
#3  0x00007fffc1717a6b in ?? () from /usr/lib/libavcodec.so.57
#4  0x00007fffc173059b in ?? () from /usr/lib/libavcodec.so.57
#5  0x00007fffc1734fa5 in ?? () from /usr/lib/libavcodec.so.57
#6  0x00007fffc16e1161 in ?? () from /usr/lib/libavcodec.so.57
#7  0x00007fffc1ab17b5 in ?? () from /usr/lib/libavcodec.so.57
#8  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 59 (Thread 0x7ffe8dff9700 (LWP 1463)):
#0  0x00007fffc16e3e94 in ?? () from /usr/lib/libavcodec.so.57
#1  0x00007fffc16e84f5 in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffc1730589 in ?? () from /usr/lib/libavcodec.so.57
#3  0x00007fffc1734fa5 in ?? () from /usr/lib/libavcodec.so.57
#4  0x00007fffc16e1161 in ?? () from /usr/lib/libavcodec.so.57
#5  0x00007fffc1ab17b5 in ?? () from /usr/lib/libavcodec.so.57
#6  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 58 (Thread 0x7ffe8e7fa700 (LWP 1462)):
#0  0x00007fffc16e614a in ?? () from /usr/lib/libavcodec.so.57
#1  0x00007fffc16ecb3d in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffc1730589 in ?? () from /usr/lib/libavcodec.so.57
#3  0x00007fffc1734fa5 in ?? () from /usr/lib/libavcodec.so.57
---Type <return> to continue, or q <return> to quit---
#4  0x00007fffc16e1161 in ?? () from /usr/lib/libavcodec.so.57
#5  0x00007fffc1ab17b5 in ?? () from /usr/lib/libavcodec.so.57
#6  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 57 (Thread 0x7ffe8effb700 (LWP 1461)):
#0  0x00007fffc16e663e in ?? () from /usr/lib/libavcodec.so.57
#1  0x00007fffc16ecbda in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffc1730589 in ?? () from /usr/lib/libavcodec.so.57
#3  0x00007fffc1734fa5 in ?? () from /usr/lib/libavcodec.so.57
#4  0x00007fffc16e1161 in ?? () from /usr/lib/libavcodec.so.57
#5  0x00007fffc1ab17b5 in ?? () from /usr/lib/libavcodec.so.57
#6  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 56 (Thread 0x7ffe8f7fc700 (LWP 1460)):
#0  0x00007fffc16e53e5 in ?? () from /usr/lib/libavcodec.so.57
#1  0x00007fffc16e61aa in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffc16ecb8d in ?? () from /usr/lib/libavcodec.so.57
#3  0x00007fffc1730589 in ?? () from /usr/lib/libavcodec.so.57
#4  0x00007fffc1734fa5 in ?? () from /usr/lib/libavcodec.so.57
#5  0x00007fffc16e1161 in ?? () from /usr/lib/libavcodec.so.57
#6  0x00007fffc1ab17b5 in ?? () from /usr/lib/libavcodec.so.57
#7  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 55 (Thread 0x7ffe8fffd700 (LWP 1459)):
#0  0x00007fffc16e65aa in ?? () from /usr/lib/libavcodec.so.57
#1  0x00007fffc16ecb3d in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffc1730589 in ?? () from /usr/lib/libavcodec.so.57
#3  0x00007fffc1734fa5 in ?? () from /usr/lib/libavcodec.so.57
#4  0x00007fffc16e1161 in ?? () from /usr/lib/libavcodec.so.57
#5  0x00007fffc1ab17b5 in ?? () from /usr/lib/libavcodec.so.57
#6  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 54 (Thread 0x7fff30ff9700 (LWP 1458)):
#0  0x00007fffc16e4154 in ?? () from /usr/lib/libavcodec.so.57
#1  0x00007fffc16e84f5 in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffc1730589 in ?? () from /usr/lib/libavcodec.so.57
#3  0x00007fffc1734fa5 in ?? () from /usr/lib/libavcodec.so.57
#4  0x00007fffc16e1161 in ?? () from /usr/lib/libavcodec.so.57
#5  0x00007fffc1ab17b5 in ?? () from /usr/lib/libavcodec.so.57
#6  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 53 (Thread 0x7fff8db7a700 (LWP 1457)):
#0  0x00007fffc1db671d in ?? () from /usr/lib/libavcodec.so.57
#1  0x00007fffc16ff9be in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffc172ef07 in ?? () from /usr/lib/libavcodec.so.57
#3  0x00007fffc173094d in ?? () from /usr/lib/libavcodec.so.57
#4  0x00007fffc1734fa5 in ?? () from /usr/lib/libavcodec.so.57
#5  0x00007fffc16e1161 in ?? () from /usr/lib/libavcodec.so.57
#6  0x00007fffc1ab17b5 in ?? () from /usr/lib/libavcodec.so.57
#7  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 50 (Thread 0x7fff327fc700 (LWP 1452)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 49 (Thread 0x7fff32ffd700 (LWP 1451)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
---Type <return> to continue, or q <return> to quit---
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 48 (Thread 0x7fff337fe700 (LWP 1450)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 47 (Thread 0x7fff33fff700 (LWP 1449)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 46 (Thread 0x7fff38ffa700 (LWP 1448)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 45 (Thread 0x7fff397fb700 (LWP 1447)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 44 (Thread 0x7fff39ffc700 (LWP 1446)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 43 (Thread 0x7fff6490e700 (LWP 1445)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 42 (Thread 0x7fff8fdf0700 (LWP 1444)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 33 (Thread 0x7fff94402700 (LWP 1434)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 32 (Thread 0x7fff94c03700 (LWP 1433)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 31 (Thread 0x7fff95404700 (LWP 1432)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 30 (Thread 0x7fff95c05700 (LWP 1431)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
---Type <return> to continue, or q <return> to quit---
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 29 (Thread 0x7fff96406700 (LWP 1430)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 28 (Thread 0x7fff96c07700 (LWP 1429)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 27 (Thread 0x7fff97408700 (LWP 1428)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 26 (Thread 0x7fff8edee700 (LWP 1427)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 25 (Thread 0x7fff9c819700 (LWP 1426)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab183e in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 21 (Thread 0x7fff67eff700 (LWP 1422)):
#0  0x00007fffef952c3d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe94f1f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe94f208c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff056fcab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007ffff05186fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007ffff0341fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 20 (Thread 0x7fff8c99d700 (LWP 1421)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007ffff0347c8b in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007ffff603eb8d in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007ffff603f465 in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 19 (Thread 0x7fff8d1e9700 (LWP 1420)):
#0  0x00007fffef952c3d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe94f1f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe94f208c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff056fc8f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007ffff05186fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007ffff0341fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7fff8e37b700 (LWP 1418)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
#1  0x00007ffff0347c8b in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007ffff603eb8d in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007ffff603f465 in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fffb1930700 (LWP 1407)):
#0  0x00007fffef952c3d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe94f1f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe94f208c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff056fc8f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007ffff05186fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007ffff0341fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff1f96915 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fffb28a7700 (LWP 1406)):
#0  0x00007fffee10a03f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fffc1ab11db in ?? () from /usr/lib/libavcodec.so.57
#2  0x00007fffc1bc3a8d in avcodec_decode_video2 () from
/usr/lib/libavcodec.so.57
#3  0x00007fffb80f9cb8 in ?? () from /usr/lib/mlt/libmltavformat.so
#4  0x00007ffff6d8a007 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#5  0x00007fffcaa6585c in ?? () from /usr/lib/mlt/libmltcore.so
#6  0x00007ffff6d8a007 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#7  0x00007ffff6b6fa2d in Mlt::Frame::get_image(mlt_image_format&, int&, int&,
int) () from /usr/lib/libmlt++.so.3
#8  0x00000000007f8ce9 in ?? ()
#9  0x00000000007dba88 in ?? ()
#10 0x00000000004c743d in ?? ()
#11 0x00007ffff03430d3 in ?? () from /usr/lib/libQt5Core.so.5
#12 0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#13 0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fffb39f1700 (LWP 1405)):
#0  0x00007fffef952c3d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe94f1f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe94f208c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff056fc8f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007ffff05186fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007ffff0341fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff1f96915 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fffba0a1700 (LWP 1404)):
#0  0x00007fffef952c3d in poll () from /usr/lib/libc.so.6
#1  0x00007fffbf791cbc in ?? () from /usr/lib/libusb-1.0.so.0
#2  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fffd6a5f700 (LWP 1403)):
#0  0x00007fffef952c3d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe94f1f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe94f208c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff056fcab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007ffff05186fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007ffff0341fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff2a24a55 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

---Type <return> to continue, or q <return> to quit---
Thread 2 (Thread 0x7fffdc81d700 (LWP 1402)):
#0  0x00007fffef952c3d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe73c3ae2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fffe73c5757 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007fffded87a99 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007ffff0346de8 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fffee104424 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fffef95bcbd in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7ffff7ec9800 (LWP 1401)):
#0  0x00007fffef952c3d in poll () from /usr/lib/libc.so.6
#1  0x00007fffe94f1f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffe94f208c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff056fc8f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007ffff05186fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007ffff0520b7c in QCoreApplication::exec() () from
/usr/lib/libQt5Core.so.5
#6  0x00000000004861ba in ?? ()
#7  0x00007fffef894710 in __libc_start_main () from /usr/lib/libc.so.6
#8  0x0000000000486839 in _start ()
(gdb) 


Reproducible: Always




movit and mlt are latest released packages, kdenlive is built from git. 
Using official released nVidia drivers.

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