Bug 353549

Summary: git master 2015-10-05 - Speed effect crashes kdenlive UI
Product: [Applications] kdenlive Reporter: Evert Vorster <evorster>
Component: User Interface & MiscellaneousAssignee: Jean-Baptiste Mardelle <jb>
Status: RESOLVED FIXED    
Severity: normal CC: qubodup, wegwerf-1-2-3
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Evert Vorster 2015-10-05 06:27:24 UTC 
When doing fine adjustments on the speed effect with the scroll wheel, after a short while kdenlive segfaults. 
I also notice significant memory usage, almost the same as the Pan & Zoom effect had some time ago. 

Reproducible: Always

Steps to Reproduce:
1.Load a longish clip on the timeline
2.Add speed effect
3.adust speed with scroll wheel of mouse. 
I spent a few seconds adjusting the speed up, to get a shorter clip. The error seems to pop up when getting to large amounts of speed-up

Actual Results:  
Kdenlive segfaults

Expected Results:  
Unlimited speed-up or down. 

Here is the backtrace:
*** Error in `/usr/bin/kdenlive': double free or corruption (out): 0x00007ffee002f220 ***
======= Backtrace: =========
/usr/lib/libc.so.6(+0x72055)[0x7ffff05fc055]
/usr/lib/libc.so.6(+0x779a6)[0x7ffff06019a6]
/usr/lib/libc.so.6(+0x7818e)[0x7ffff060218e]
/usr/lib/mlt/libmltavformat.so(+0xc0af)[0x7fffc3e100af]
/usr/lib/libmlt.so.6(mlt_frame_get_image+0x77)[0x7ffff6fb3017]
/usr/lib/libmlt++.so.3(_ZN3Mlt5Frame9get_imageER16mlt_image_formatRiS3_i+0x8d)[0x7ffff6d98a6d]
/usr/bin/kdenlive(_ZN6KThumb8getFrameEPN3Mlt5FrameEii+0x12c)[0x82b63c]
/usr/bin/kdenlive(_ZN11ProjectClip16slotExtractImageE5QListIiE+0x6b5)[0x822675]
/usr/bin/kdenlive(_ZN12QtConcurrent36VoidStoredMemberFunctionPointerCall1Iv11ProjectClip5QListIiES3_E10runFunctorEv+0x60)[0x5c0f50]
/usr/bin/kdenlive(_ZN12QtConcurrent15RunFunctionTaskIvE3runEv+0x45)[0x557815]
/usr/lib/libQt5Core.so.5(+0xb7593)[0x7ffff1065593]
/usr/lib/libQt5Core.so.5(+0xbaa9e)[0x7ffff1068a9e]
/usr/lib/libpthread.so.0(+0x74a4)[0x7fffeee1b4a4]
/usr/lib/libc.so.6(clone+0x6d)[0x7ffff067313d]
======= Memory map: ========
00400000-00959000 r-xp 00000000 08:03 3147095                            /usr/bin/kdenlive
00b59000-00b72000 r--p 00559000 08:03 3147095                            /usr/bin/kdenlive
00b72000-00b7a000 rw-p 00572000 08:03 3147095                            /usr/bin/kdenlive
00b7a000-201cf000 rw-p 00000000 00:00 0                                  [heap]
40000000-4009c000 rw-p 00000000 00:00 0 
4009c000-4009e000 r-xs 00000000 00:20 38121                              /tmp/.glC3Mxt8 (deleted)
4009e000-40272000 rw-p 00000000 00:00 0 
7ffe7c000000-7ffe7c83a000 rw-p 00000000 00:00 0 
7ffe7c83a000-7ffe80000000 ---p 00000000 00:00 0 
7ffe80000000-7ffe80b37000 rw-p 00000000 00:00 0 
7ffe80b37000-7ffe84000000 ---p 00000000 00:00 0 
7ffe84000000-7ffe8483a000 rw-p 00000000 00:00 0 
7ffe8483a000-7ffe88000000 ---p 00000000 00:00 0 
7ffe88000000-7ffe8883a000 rw-p 00000000 00:00 0 
7ffe8883a000-7ffe8c000000 ---p 00000000 00:00 0 
7ffe8c000000-7ffe8c83a000 rw-p 00000000 00:00 0 
7ffe8c83a000-7ffe90000000 ---p 00000000 00:00 0 
7ffe90000000-7ffe9083a000 rw-p 00000000 00:00 0 
7ffe9083a000-7ffe94000000 ---p 00000000 00:00 0 
7ffe94000000-7ffe9483a000 rw-p 00000000 00:00 0 
7ffe9483a000-7ffe98000000 ---p 00000000 00:00 0 
7ffe98000000-7ffe9883a000 rw-p 00000000 00:00 0 
7ffe9883a000-7ffe9c000000 ---p 00000000 00:00 0 
7ffe9c000000-7ffe9dd91000 rw-p 00000000 00:00 0 
7ffe9dd91000-7ffea0000000 ---p 00000000 00:00 0 
7ffea3ff8000-7ffea3ff9000 ---p 00000000 00:00 0 
7ffea3ff9000-7ffea47f9000 rw-p 00000000 00:00 0                          [stack:25196]
7ffea47f9000-7ffea47fa000 ---p 00000000 00:00 0 
7ffea47fa000-7ffea4ffa000 rw-p 00000000 00:00 0                          [stack:25195]
7ffea4ffa000-7ffea4ffb000 ---p 00000000 00:00 0 
7ffea4ffb000-7ffea57fb000 rw-p 00000000 00:00 0                          [stack:25194]
7ffea57fb000-7ffea57fc000 ---p 00000000 00:00 0 
7ffea57fc000-7ffea5ffc000 rw-p 00000000 00:00 0                          [stack:25193]
7ffea5ffc000-7ffea5ffd000 ---p 00000000 00:00 0 
7ffea5ffd000-7ffea67fd000 rw-p 00000000 00:00 0                          [stack:25192]
7ffea67fd000-7ffea67fe000 ---p 00000000 00:00 0 
7ffea67fe000-7ffea6ffe000 rw-p 00000000 00:00 0                          [stack:25191]
7ffea6ffe000-7ffea6fff000 ---p 00000000 00:00 0 
7ffea6fff000-7ffea77ff000 rw-p 00000000 00:00 0                          [stack:25190]
7ffea77ff000-7ffea7800000 ---p 00000000 00:00 0 
7ffea7800000-7ffea8000000 rw-p 00000000 00:00 0                          [stack:25189]
7ffea8000000-7ffea8880000 rw-p 00000000 00:00 0 
7ffea8880000-7ffeac000000 ---p 00000000 00:00 0 
7ffeac000000-7ffeac880000 rw-p 00000000 00:00 0 
7ffeac880000-7ffeb0000000 ---p 00000000 00:00 0 
7ffeb0000000-7ffeb083a000 rw-p 00000000 00:00 0 
7ffeb083a000-7ffeb4000000 ---p 00000000 00:00 0 
7ffeb4000000-7ffeb4b3d000 rw-p 00000000 00:00 0 
7ffeb4b3d000-7ffeb8000000 ---p 00000000 00:00 0 
7ffeb8000000-7ffeb883a000 rw-p 00000000 00:00 0 
7ffeb883a000-7ffebc000000 ---p 00000000 00:00 0 
7ffebc000000-7ffebc841000 rw-p 00000000 00:00 0 
7ffebc841000-7ffec0000000 ---p 00000000 00:00 0 
7ffec0000000-7ffec0841000 rw-p 00000000 00:00 0 
7ffec0841000-7ffec4000000 ---p 00000000 00:00 0 
7ffec4000000-7ffec483f000 rw-p 00000000 00:00 0 
7ffec483f000-7ffec8000000 ---p 00000000 00:00 0 
7ffec8000000-7ffec8840000 rw-p 00000000 00:00 0 
7ffec8840000-7ffecc000000 ---p 00000000 00:00 0 
7ffecc000000-7ffecc841000 rw-p 00000000 00:00 0 
7ffecc841000-7ffed0000000 ---p 00000000 00:00 0 
7ffed0000000-7ffed0880000 rw-p 00000000 00:00 0 
7ffed0880000-7ffed4000000 ---p 00000000 00:00 0 
7ffed4000000-7ffed5d91000 rw-p 00000000 00:00 0 
7ffed5d91000-7ffed8000000 ---p 00000000 00:00 0 
7ffed8000000-7ffed887a000 rw-p 00000000 00:00 0 
7ffed887a000-7ffedc000000 ---p 00000000 00:00 0 
7ffedc000000-7ffedc882000 rw-p 00000000 00:00 0 
7ffedc882000-7ffee0000000 ---p 00000000 00:00 0 
7ffee0000000-7ffee140e000 rw-p 00000000 00:00 0 
7ffee140e000-7ffee4000000 ---p 00000000 00:00 0 
7ffee47f9000-7ffee47fa000 ---p 00000000 00:00 0 
7ffee47fa000-7ffee4ffa000 rw-p 00000000 00:00 0                          [stack:25188]
7ffee4ffa000-7ffee4ffb000 ---p 00000000 00:00 0 
7ffee4ffb000-7ffee57fb000 rw-p 00000000 00:00 0                          [stack:25185]
7ffee57fb000-7ffee57fc000 ---p 00000000 00:00 0 
7ffee57fc000-7ffee5ffc000 rw-p 00000000 00:00 0                          [stack:25184]
7ffee5ffc000-7ffee5ffd000 ---p 00000000 00:00 0 
7ffee5ffd000-7ffee67fd000 rw-p 00000000 00:00 0                          [stack:25183]
7ffee67fd000-7ffee67fe000 ---p 00000000 00:00 0 
7ffee67fe000-7ffee6ffe000 rw-p 00000000 00:00 0                          [stack:25182]
7ffee6ffe000-7ffee6fff000 ---p 00000000 00:00 0 
7ffee6fff000-7ffee77ff000 rw-p 00000000 00:00 0                          [stack:25181]
7ffee77ff000-7ffee7800000 ---p 00000000 00:00 0 
7ffee7800000-7ffee8000000 rw-p 00000000 00:00 0                          [stack:25180]
7ffee8000000-7ffee84be000 rw-p 00000000 00:00 0 
7ffee84be000-7ffeec000000 ---p 00000000 00:00 0 
7ffeec7f9000-7ffeec7fa000 ---p 00000000 00:00 0 
7ffeec7fa000-7ffeecffa000 rw-p 00000000 00:00 0                          [stack:25179]
7ffeecffa000-7ffeecffb000 ---p 00000000 00:00 0 
7ffeecffb000-7ffeed7fb000 rw-p 00000000 00:00 0                          [stack:25178]
7ffeed7fb000-7ffeed7fc000 ---p 00000000 00:00 0 
7ffeed7fc000-7ffeedffc000 rw-p 00000000 00:00 0                          [stack:25177]
7ffeedffc000-7ffeedffd000 ---p 00000000 00:00 0 
7ffeedffd000-7ffeee7fd000 rw-p 00000000 00:00 0                          [stack:25176]
7ffeee7fd000-7ffeee7fe000 ---p 00000000 00:00 0 
7ffeee7fe000-7ffeeeffe000 rw-p 00000000 00:00 0                          [stack:25175]
7ffeeeffe000-7ffeeefff000 ---p 00000000 00:00 0 
7ffeeefff000-7ffeef7ff000 rw-p 00000000 00:00 0                          [stack:25174]
7ffeef7ff000-7ffeef800000 ---p 00000000 00:00 0 
7ffeef800000-7ffef0000000 rw-p 00000000 00:00 0                          [stack:25173]
7ffef0000000-7ffef04bd000 rw-p 00000000 00:00 0 
7ffef04bd000-7ffef4000000 ---p 00000000 00:00 0 
7ffef4000000-7ffef44bd000 rw-p 00000000 00:00 0 
7ffef44bd000-7ffef8000000 ---p 00000000 00:00 0 
7ffef8000000-7ffef84bd000 rw-p 00000000 00:00 0 
7ffef84bd000-7ffefc000000 ---p 00000000 00:00 0 
7ffefc000000-7ffefc4bd000 rw-p 00000000 00:00 0 
7ffefc4bd000-7fff00000000 ---p 00000000 00:00 0 
7fff00000000-7fff004bd000 rw-p 00000000 00:00 0 
7fff004bd000-7fff04000000 ---p 00000000 00:00 0 
7fff04000000-7fff044bd000 rw-p 00000000 00:00 0 
7fff044bd000-7fff08000000 ---p 00000000 00:00 0 
7fff08000000-7fff08aa3000 rw-p 00000000 00:00 0 
7fff08aa3000-7fff0c000000 ---p 00000000 00:00 0 
7fff0c000000-7fff0c978000 rw-p 00000000 00:00 0 
7fff0c978000-7fff10000000 ---p 00000000 00:00 0 
7fff10000000-7fff10e3a000 rw-p 00000000 00:00 0 
7fff10e3a000-7fff14000000 ---p 00000000 00:00 0 
7fff147f9000-7fff147fa000 ---p 00000000 00:00 0 
7fff147fa000-7fff14ffa000 rw-p 00000000 00:00 0                          [stack:25172]
7fff14ffa000-7fff14ffb000 ---p 00000000 00:00 0 
7fff14ffb000-7fff157fb000 rw-p 00000000 00:00 0                          [stack:25170]
7fff157fb000-7fff157fc000 ---p 00000000 00:00 0 
7fff157fc000-7fff15ffc000 rw-p 00000000 00:00 0                          [stack:25166]
7fff15ffc000-7fff15ffd000 ---p 00000000 00:00 0 
7fff15ffd000-7fff167fd000 rw-p 00000000 00:00 0                          [stack:25165]
7fff167fd000-7fff167fe000 ---p 00000000 00:00 0 
7fff167fe000-7fff16ffe000 rw-p 00000000 00:00 0                          [stack:25164]
7fff16ffe000-7fff16fff000 ---p 00000000 00:00 0 
7fff16fff000-7fff177ff000 rw-p 00000000 00:00 0                          [stack:25163]
7fff177ff000-7fff17800000 ---p 00000000 00:00 0 
7fff17800000-7fff18000000 rw-p 00000000 00:00 0                          [stack:25162]
7fff18000000-7fff18b3e000 rw-p 00000000 00:00 0 
7fff18b3e000-7fff1c000000 ---p 00000000 00:00 0 
7fff1c000000-7fff1cb37000 rw-p 00000000 00:00 0 
7fff1cb37000-7fff20000000 ---p 00000000 00:00 0 
7fff20000000-7fff2083f000 rw-p 00000000 00:00 0 
7fff2083f000-7fff24000000 ---p 00000000 00:00 0 
7fff24000000-7fff2483a000 rw-p 00000000 00:00 0 
7fff2483a000-7fff28000000 ---p 00000000 00:00 0 
7fff28000000-7fff28841000 rw-p 00000000 00:00 0 
7fff28841000-7fff2c000000 ---p 00000000 00:00 0 
7fff2c000000-7fff2c841000 rw-p 00000000 00:00 0 
7fff2c841000-7fff30000000 ---p 00000000 00:00 0 
7fff30000000-7fff3119c000 rw-p 00000000 00:00 0 
7fff3119c000-7fff34000000 ---p 00000000 00:00 0 
7fff34000000-7fff34b3e000 rw-p 00000000 00:00 0 
7fff34b3e000-7fff38000000 ---p 00000000 00:00 0 
7fff38000000-7fff3b864000 rw-p 00000000 00:00 0 
7fff3b864000-7fff3c000000 ---p 00000000 00:00 0 
7fff3c3f7000-7fff3c3f8000 ---p 00000000 00:00 0 
7fff3c3f8000-7fff3cbf8000 rw-p 00000000 00:00 0                          [stack:25161]
7fff3cbf8000-7fff3cbf9000 ---p 00000000 00:00 0 
7fff3cbf9000-7fff3d3f9000 rw-p 00000000 00:00 0                          [stack:25160]
7fff3d3f9000-7fff3d3fa000 ---p 00000000 00:00 0 
7fff3d3fa000-7fff3dbfa000 rw-p 00000000 00:00 0                          [stack:25159]
7fff3dbfa000-7fff3dbfb000 ---p 00000000 00:00 0 
7fff3dbfb000-7fff3e3fb000 rw-p 00000000 00:00 0                          [stack:25158]
7fff3e3fb000-7fff3e3fc000 ---p 00000000 00:00 0 
7fff3e3fc000-7fff3ebfc000 rw-p 00000000 00:00 0                          [stack:25157]
7fff3ebfc000-7fff3effc000 rw-s 2057c0000 00:06 15495                     /dev/nvidiactl
7fff3effc000-7fff3effd000 ---p 00000000 00:00 0 
7fff3effd000-7fff3f7fd000 rw-p 00000000 00:00 0                          [stack:25152]
7fff3f7fd000-7fff3f7fe000 ---p 00000000 00:00 0 
7fff3f7fe000-7fff3fffe000 rw-p 00000000 00:00 0                          [stack:25151]
7fff3fffe000-7fff43fff000 rw-s 00000000 00:13 10129                      /dev/shm/pulse-shm-2059634574
7fff43fff000-7fff48000000 rw-s 00000000 00:13 36141                      /dev/shm/pulse-shm-2048866248
7fff48000000-7fff4c000000 rw-p 00000000 00:00 0 
7fff4c3f9000-7fff4c3fa000 ---p 00000000 00:00 0 
7fff4c3fa000-7fff4cbfa000 rw-p 00000000 00:00 0                          [stack:25150]
7fff4cbfa000-7fff4cbfb000 ---p 00000000 00:00 0 
7fff4cbfb000-7fff4d3fb000 rw-p 00000000 00:00 0                          [stack:25149]
7fff4d3fb000-7fff4d3fc000 ---p 00000000 00:00 0 
7fff4d3fc000-7fff4dbfc000 rw-p 00000000 00:00 0                          [stack:25148]
7fff4dbfc000-7fff4dbfd000 ---p 00000000 00:00 0 
7fff4dbfd000-7fff4e3fd000 rw-p 00000000 00:00 0                          [stack:25147]
7fff4e3fd000-7fff4e3fe000 ---p 00000000 00:00 0 
7fff4e3fe000-7fff4ebfe000 rw-p 00000000 00:00 0                          [stack:25146]
7fff4ebfe000-7fff4ebff000 ---p 00000000 00:00 0 
7fff4ebff000-7fff4f3ff000 rw-p 00000000 00:00 0                          [stack:25145]
7fff4f3ff000-7fff4f400000 ---p 00000000 00:00 0 
7fff4f400000-7fff4fc00000 rw-p 00000000 00:00 0                          [stack:25144]
7fff4fc00000-7fff50000000 rw-s 10a2ae000 00:06 15495                     /dev/nvidiactl
7fff50000000-7fff51df9000 rw-p 00000000 00:00 0 
7fff51df9000-7fff54000000 ---p 00000000 00:00 0 
7fff54000000-7fff56275000 rw-p 00000000 00:00 0 
7fff56275000-7fff58000000 ---p 00000000 00:00 0 
7fff58000000-7fff584bd000 rw-p 00000000 00:00 0 
7fff584bd000-7fff5c000000 ---p 00000000 00:00 0 
7fff5c000000-7fff5c4be000 rw-p 00000000 00:00 0 
7fff5c4be000-7fff60000000 ---p 00000000 00:00 0 
7fff60000000-7fff604bd000 rw-p 00000000 00:00 0 
7fff604bd000-7fff64000000 ---p 00000000 00:00 0 
7fff64000000-7fff644bd000 rw-p 00000000 00:00 0 
7fff644bd000-7fff68000000 ---p 00000000 00:00 0 
7fff68000000-7fff684bd000 rw-p 00000000 00:00 0 
7fff684bd000-7fff6c000000 ---p 00000000 00:00 0 
7fff6c000000-7fff6c4bd000 rw-p 00000000 00:00 0 
7fff6c4bd000-7fff70000000 ---p 00000000 00:00 0 
7fff70000000-7fff70978000 rw-p 00000000 00:00 0 
7fff70978000-7fff74000000 ---p 00000000 00:00 0 
7fff74000000-7fff744bd000 rw-p 00000000 00:00 0 
7fff744bd000-7fff78000000 ---p 00000000 00:00 0 
7fff78000000-7fff78aa3000 rw-p 00000000 00:00 0 
7fff78aa3000-7fff7c000000 ---p 00000000 00:00 0 
7fff7c1f8000-7fff7c3f8000 rw-s 467d7000 00:06 15495                      /dev/nvidiactl
7fff7c5f8000-7fff7c7f8000 rw-s 1045ab000 00:06 15495                     /dev/nvidiactl
7fff7c7f8000-7fff7c7f9000 ---p 00000000 00:00 0 
7fff7c7f9000-7fff7cff9000 rw-p 00000000 00:00 0                          [stack:25155]
7fff7cff9000-7fff7cffa000 ---p 00000000 00:00 0 
7fff7cffa000-7fff7d7fa000 rw-p 00000000 00:00 0                          [stack:25154]
7fff7d7fa000-7fff7d7fb000 ---p 00000000 00:00 0 
7fff7d7fb000-7fff7dffb000 rw-p 00000000 00:00 0                          [stack:25156]
7fff7dffb000-7fff7dffc000 ---p 00000000 00:00 0 
7fff7dffc000-7fff7e7fc000 rw-p 00000000 00:00 0                          [stack:25137]
7fff7e7fc000-7fff7e7fd000 ---p 00000000 00:00 0 
7fff7e7fd000-7fff7effd000 rw-p 00000000 00:00 0                          [stack:25135]
7fff7effd000-7fff7effe000 ---p 00000000 00:00 0 
7fff7effe000-7fff7f7fe000 rw-p 00000000 00:00 0                          [stack:25134]
7fff7f7fe000-7fff7f7ff000 ---p 00000000 00:00 0 
7fff7f7ff000-7fff7ffff000 rw-p 00000000 00:00 0                          [stack:25133]
7fff7ffff000-7fff84000000 rw-s 00000000 00:13 10129                      /dev/shm/pulse-shm-2059634574
7fff84000000-7fff84eef000 rw-p 00000000 00:00 0 
7fff84eef000-7fff88000000 ---p 00000000 00:00 0 
7fff88000000-7fff8b970000 rw-p 00000000 00:00 0 
7fff8b970000-7fff8c000000 ---p 00000000 00:00 0 
7fff8c000000-7fff8cb11000 rw-p 00000000 00:00 0 
7fff8cb11000-7fff90000000 ---p 00000000 00:00 0 
7fff90000000-7fff9021c000 rw-p 00000000 00:00 0 
7fff9021c000-7fff94000000 ---p 00000000 00:00 0 
7fff94000000-7fff94238000 rw-p 00000000 00:00 0 
7fff94238000-7fff98000000 ---p 00000000 00:00 0 
7fff98171000-7fff981fe000 rw-s 00000000 00:05 15302690                   /SYSV00000000 (deleted)
7fff981fe000-7fff981ff000 ---p 00000000 00:00 0 
7fff981ff000-7fff989ff000 rw-p 00000000 00:00 0                          [stack:25132]
7fff989ff000-7fff98a00000 ---p 00000000 00:00 0 
7fff98a00000-7fff99200000 rw-p 00000000 00:00 0                          [stack:25131]
7fff99200000-7fff99201000 ---p 00000000 00:00 0 
7fff99201000-7fff99a01000 rw-p 00000000 00:00 0                          [stack:25130]
7fff99a01000-7fff99a02000 ---p 00000000 00:00 0 
7fff99a02000-7fff9a202000 rw-p 00000000 00:00 0                          [stack:25129]
7fff9a202000-7fff9a203000 ---p 00000000 00:00 0 
7fff9a203000-7fff9aa03000 rw-p 00000000 00:00 0                          [stack:25128]
7fff9aa03000-7fff9aa04000 ---p 00000000 00:00 0 
7fff9aa04000-7fff9b204000 rw-p 00000000 00:00 0                          [stack:25127]
7fff9b204000-7fff9b205000 ---p 00000000 00:00 0 
7fff9b205000-7fff9ba05000 rw-p 00000000 00:00 0                          [stack:25126]
7fff9ba05000-7fff9babb000 r--p 00000000 08:03 1057006                    /usr/share/fonts/TTF/DejaVuSans.ttf
7fff9bad9000-7fff9bb15000 rw-s 00000000 00:05 15269921                   /SYSV00000000 (deleted)
7fff9bb15000-7fff9bb69000 rw-s 00000000 00:05 15237152                   /SYSV00000000 (deleted)
7fff9bb69000-7fff9bc69000 rw-s 214faf000 00:06 15495                     /dev/nvidiactl
7fff9bc69000-7fff9bc6c000 r-xp 00000000 08:03 3157523                    /usr/lib/libpulse-simple.so.0.1.0
7fff9bc6c000-7fff9be6c000 ---p 00003000 08:03 3157523                    /usr/lib/libpulse-simple.so.0.1.0
7fff9be6c000-7fff9be6d000 r--p 00003000 08:03 3157523                    /usr/lib/libpulse-simple.so.0.1.0
7fff9be6d000-7fff9be6e000 rw-p 00004000 08:03 3157523                    /usr/lib/libpulse-simple.so.0.1.0
7fff9be6e000-7fff9bffe000 r--s 00000000 08:05 2623100                    /home/evert/.cache/ksycoca5
7fff9bffe000-7fff9ffff000 rw-s 00000000 00:13 10129                      /dev/shm/pulse-shm-2059634574
7fff9ffff000-7fffa4000000 rw-s 00000000 00:13 34555                      /dev/shm/pulse-shm-1590999184
7fffa4000000-7fffa4021000 rw-p 00000000 00:00 0 
7fffa4021000-7fffa8000000 ---p 00000000 00:00 0 
7fffa803a000-7fffa803b000 ---p 00000000 00:00 0 
7fffa803b000-7fffa883b000 rw-p 00000000 00:00 0                          [stack:25122]
7fffa883b000-7fffa893b000 rw-s 14c847000 00:06 15495                     /dev/nvidiactl
7fffa893b000-7fffa893c000 ---p 00000000 00:00 0 
7fffa893c000-7fffa913c000 rw-p 00000000 00:00 0                          [stack:25121]
7fffa913c000-7fffa913d000 ---p 00000000 00:00 0 
7fffa913d000-7fffa993d000 rw-p 00000000 00:00 0                          [stack:25120]
7fffa993d000-7fffa9a3d000 rw-s 37fd3000 00:06 15495                      /dev/nvidiactl
7fffa9a3d000-7fffa9a3e000 ---p 00000000 00:00 0 
7fffa9a3e000-7fffaa23e000 rw-p 00000000 00:00 0                          [stack:25119]
7fffaa23e000-7fffaa240000 r-xp 00000000 08:03 1054031                    /usr/lib/vlc/plugins/audio_filter/libsamplerate_plugin.so
7fffaa240000-7fffaa43f000 ---p 00002000 08:03 1054031                    /usr/lib/vlc/plugins/audio_filter/libsamplerate_plugin.so
7fffaa43f000-7fffaa440000 r--p 00001000 08:03 1054031                    /usr/lib/vlc/plugins/audio_filter/libsamplerate_plugin.so
7fffaa440000-7fffaa441000 rw-p 00002000 08:03 1054031                    /usr/lib/vlc/plugins/audio_filter/libsamplerate_plugin.so
7fffaa441000-7fffaa445000 r-xp 00000000 08:03 1053994                    /usr/lib/vlc/plugins/audio_filter/libscaletempo_plugin.so
7fffaa445000-7fffaa644000 ---p 00004000 08:03 1053994                    /usr/lib/vlc/plugins/audio_filter/libscaletempo_plugin.so
7fffaa644000-7fffaa645000 r--p 00003000 08:03 1053994                    /usr/lib/vlc/plugins/audio_filter/libscaletempo_plugin.so
7fffaa645000-7fffaa646000 rw-p 00004000 08:03 1053994                    /usr/lib/vlc/plugins/audio_filter/libscaletempo_plugin.so
7fffaa646000-7fffaa648000 r-xp 00000000 08:03 1059941                    /usr/lib/vlc/plugins/audio_mixer/libfloat_mixer_plugin.so
7fffaa648000-7fffaa847000 ---p 00002000 08:03 1059941                    /usr/lib/vlc/plugins/audio_mixer/libfloat_mixer_plugin.so
7fffaa847000-7fffaa848000 r--p 00001000 08:03 1059941                    /usr/lib/vlc/plugins/audio_mixer/libfloat_mixer_plugin.so
7fffaa848000-7fffaa849000 rw-p 00002000 08:03 1059941                    /usr/lib/vlc/plugins/audio_mixer/libfloat_mixer_plugin.so
7fffaa849000-7fffaa84f000 r-xp 00000000 08:03 1059915                    /usr/lib/vlc/plugins/codec/libvorbis_plugin.so
7fffaa84f000-7fffaaa4e000 ---p 00006000 08:03 1059915                    /usr/lib/vlc/plugins/codec/libvorbis_plugin.so
7fffaaa4e000-7fffaaa4f000 r--p 00005000 08:03 1059915                    /usr/lib/vlc/plugins/codec/libvorbis_plugin.so
7fffaaa4f000-7fffaaa50000 rw-p 00006000 08:03 1059915                    /usr/lib/vlc/plugins/codec/libvorbis_plugin.so
7fffaaa50000-7fffaaa54000 r-xp 00000000 08:03 1059909                    /usr/lib/vlc/plugins/codec/libsubstx3g_plugin.so
7fffaaa54000-7fffaac53000 ---p 00004000 08:03 1059909                    /usr/lib/vlc/plugins/codec/libsubstx3g_plugin.so
7fffaac53000-7fffaac54000 r--p 00003000 08:03 1059909                    /usr/lib/vlc/plugins/codec/libsubstx3g_plugin.so
7fffaac54000-7fffaac55000 rw-p 00004000 08:03 1059909                    /usr/lib/vlc/plugins/codec/libsubstx3g_plugin.so
7fffaac55000-7fffaac5d000 r-xp 00000000 08:03 1059444                    /usr/lib/vlc/plugins/codec/libschroedinger_plugin.so
7fffaac5d000-7fffaae5d000 ---p 00008000 08:03 1059444                    /usr/lib/vlc/plugins/codec/libschroedinger_plugin.so
7fffaae5d000-7fffaae5e000 r--p 00008000 08:03 1059444                    /usr/lib/vlc/plugins/codec/libschroedinger_plugin.so
7fffaae5e000-7fffaae5f000 rw-p 00009000 08:03 1059444                    /usr/lib/vlc/plugins/codec/libschroedinger_plugin.so
7fffaae5f000-7fffaae62000 r-xp 00000000 08:03 1059445                    /usr/lib/vlc/plugins/codec/libpng_plugin.so
7fffaae62000-7fffab061000 ---p 00003000 08:03 1059445                    /usr/lib/vlc/plugins/codec/libpng_plugin.so
7fffab061000-7fffab062000 r--p 00002000 08:03 1059445                    /usr/lib/vlc/plugins/codec/libpng_plugin.so
7fffab062000-7fffab063000 rw-p 00003000 08:03 1059445                    /usr/lib/vlc/plugins/codec/libpng_plugin.so
7fffab063000-7fffab066000 r-xp 00000000 08:03 1059348                    /usr/lib/vlc/plugins/codec/libcdg_plugin.so
7fffab066000-7fffab265000 ---p 00003000 08:03 1059348                    /usr/lib/vlc/plugins/codec/libcdg_plugin.so
7fffab265000-7fffab266000 r--p 00002000 08:03 1059348                    /usr/lib/vlc/plugins/codec/libcdg_plugin.so
7fffab266000-7fffab267000 rw-p 00003000 08:03 1059348                    /usr/lib/vlc/plugins/codec/libcdg_plugin.so
7fffab267000-7fffab26a000 r-xp 00000000 08:03 1059446                    /usr/lib/vlc/plugins/codec/libjpeg_plugin.so
7fffab26a000-7fffab469000 ---p 00003000 08:03 1059446                    /usr/lib/vlc/plugins/codec/libjpeg_plugin.so
7fffab469000-7fffab46a000 r--p 00002000 08:03 1059446                    /usr/lib/vlc/plugins/codec/libjpeg_plugin.so
7fffab46a000-7fffab46b000 rw-p 00003000 08:03 1059446                    /usr/lib/vlc/plugins/codec/libjpeg_plugin.so
7fffab46b000-7fffab4a2000 r-xp 00000000 08:03 3150338                    /usr/lib/liblua.so.5.3.1
7fffab4a2000-7fffab6a1000 ---p 00037000 08:03 3150338                    /usr/lib/liblua.so.5.3.1
7fffab6a1000-7fffab6a3000 r--p 00036000 08:03 3150338                    /usr/lib/liblua.so.5.3.1
7fffab6a3000-7fffab6a4000 rw-p 00038000 08:03 3150338                    /usr/lib/liblua.so.5.3.1
7fffab6a4000-7fffab6cd000 r-xp 00000000 08:03 1054064                    /usr/lib/vlc/plugins/lua/liblua_plugin.so
7fffab6cd000-7fffab8cd000 ---p 00029000 08:03 1054064                    /usr/lib/vlc/plugins/lua/liblua_plugin.so
7fffab8cd000-7fffab8cf000 r--p 00029000 08:03 1054064                    /usr/lib/vlc/plugins/lua/liblua_plugin.so
7fffab8cf000-7fffab8d0000 rw-p 0002b000 08:03 1054064                    /usr/lib/vlc/plugins/lua/liblua_plugin.so
7fffab8d0000-7fffab9c7000 r-xp 00000000 08:03 3167662                    /usr/lib/libtag.so.1.14.0
7fffab9c7000-7fffabbc7000 ---p 000f7000 08:03 3167662                    /usr/lib/libtag.so.1.14.0
7fffabbc7000-7fffabbcc000 r--p 000f7000 08:03 3167662                    /usr/lib/libtag.so.1.14.0
7fffabbcc000-7fffabbcf000 rw-p 000fc000 08:03 3167662                    /usr/lib/libtag.so.1.14.0
7fffabbcf000-7fffabbd0000 rw-p 00000000 00:00 0 
7fffabbd0000-7fffabbe6000 r-xp 00000000 08:03 1054063                    /usr/lib/vlc/plugins/meta_engine/libtaglib_plugin.so
7fffabbe6000-7fffabde6000 ---p 00016000 08:03 1054063                    /usr/lib/vlc/plugins/meta_engine/libtaglib_plugin.so
7fffabde6000-7fffabde7000 r--p 00016000 08:03 1054063                    /usr/lib/vlc/plugins/meta_engine/libtaglib_plugin.so
7fffabde7000-7fffabde8000 rw-p 00017000 08:03 1054063                    /usr/lib/vlc/plugins/meta_engine/libtaglib_plugin.so
7fffabde8000-7fffabdfe000 r-xp 00000000 08:03 1054069                    /usr/lib/vlc/plugins/demux/libogg_plugin.so
7fffabdfe000-7fffabffd000 ---p 00016000 08:03 1054069                    /usr/lib/vlc/plugins/demux/libogg_plugin.so
7fffabffd000-7fffabffe000 r--p 00015000 08:03 1054069                    /usr/lib/vlc/plugins/demux/libogg_plugin.so
7fffabffe000-7fffabfff000 rw-p 00016000 08:03 1054069                    /usr/lib/vlc/plugins/demux/libogg_plugin.so
7fffabfff000-7fffb0000000 rw-s 00000000 00:13 37630                      /dev/shm/pulse-shm-1867288594
7fffb0000000-7fffb002e000 rw-p 00000000 00:00 0 
7fffb002e000-7fffb4000000 ---p 00000000 00:00 0 
7fffb402e000-7fffb4039000 r--p 00000000 08:03 1061027                    /usr/share/fonts/TTF/Oxygen-Sans.ttf
7fffb4039000-7fffb4079000 rw-s 1a827d000 00:06 15495                     /dev/nvidiactl
7fffb4079000-7fffb4099000 rw-s 2143cc000 00:06 15495                     /dev/nvidiactl
7fffb4099000-7fffb409a000 ---p 00000000 00:00 0 
7fffb409a000-7fffb419a000 rw-p 00000000 00:00 0 
7fffb419a000-7fffb419c000 r-xp 00000000 08:03 1054038                    /usr/lib/vlc/plugins/stream_filter/librecord_plugin.so
Program received signal SIGABRT, Aborted.
[Switching to Thread 0x7fff7e7fb700 (LWP 25137)]
0x00007ffff05bd5f8 in raise () from /usr/lib/libc.so.6
(gdb) thread apply all bt

Thread 75 (Thread 0x7ffea47f8700 (LWP 25196)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 74 (Thread 0x7ffea4ff9700 (LWP 25195)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 73 (Thread 0x7ffea57fa700 (LWP 25194)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 72 (Thread 0x7ffea5ffb700 (LWP 25193)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 71 (Thread 0x7ffea67fc700 (LWP 25192)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 70 (Thread 0x7ffea6ffd700 (LWP 25191)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 69 (Thread 0x7ffea77fe700 (LWP 25190)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 68 (Thread 0x7ffea7fff700 (LWP 25189)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 67 (Thread 0x7ffee4ff9700 (LWP 25188)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 66 (Thread 0x7ffee57fa700 (LWP 25185)):
#0  0x00007fffeee23cfc in __lll_lock_wait () from /usr/lib/libpthread.so.0
#1  0x00007fffeee1db35 in pthread_mutex_lock () from /usr/lib/libpthread.so.0
#2  0x00007fffc3e0fb4b in ?? () from /usr/lib/mlt/libmltavformat.so
#3  0x00007ffff6fb3017 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#4  0x00007ffff6d98a6d in Mlt::Frame::get_image(mlt_image_format&, int&, int&, int) () from /usr/lib/libmlt++.so.3
#5  0x000000000082b63c in KThumb::getFrame(Mlt::Frame*, int, int) ()
#6  0x0000000000822675 in ProjectClip::slotExtractImage(QList<int>) ()
#7  0x00000000005c0f50 in QtConcurrent::VoidStoredMemberFunctionPointerCall1<void, ProjectClip, QList<int>, QList<int> >::runFunctor() ()
#8  0x0000000000557815 in QtConcurrent::RunFunctionTask<void>::run() ()
#9  0x00007ffff1065593 in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007ffff067313d in clone () from /usr/lib/libc.so.6
---Type <return> to continue, or q <return> to quit---

Thread 65 (Thread 0x7ffee5ffb700 (LWP 25184)):
#0  0x00007fffcb67d10c in ?? () from /usr/lib/libswscale.so.3
#1  0x00007fffcb6ad612 in ?? () from /usr/lib/libswscale.so.3
#2  0x00007fffcb69c7c9 in ?? () from /usr/lib/libswscale.so.3
#3  0x00007fffcb69dc01 in sws_scale () from /usr/lib/libswscale.so.3
#4  0x00007fffc3e0bec2 in ?? () from /usr/lib/mlt/libmltavformat.so
#5  0x00007fffc3e10c1f in ?? () from /usr/lib/mlt/libmltavformat.so
#6  0x00007ffff6fb3017 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#7  0x00007ffff6d98a6d in Mlt::Frame::get_image(mlt_image_format&, int&, int&, int) () from /usr/lib/libmlt++.so.3
#8  0x000000000082b63c in KThumb::getFrame(Mlt::Frame*, int, int) ()
#9  0x0000000000822675 in ProjectClip::slotExtractImage(QList<int>) ()
#10 0x00000000005c0f50 in QtConcurrent::VoidStoredMemberFunctionPointerCall1<void, ProjectClip, QList<int>, QList<int> >::runFunctor() ()
#11 0x0000000000557815 in QtConcurrent::RunFunctionTask<void>::run() ()
#12 0x00007ffff1065593 in ?? () from /usr/lib/libQt5Core.so.5
#13 0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#14 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#15 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 64 (Thread 0x7ffee67fc700 (LWP 25183)):
#0  0x00007fffcc2751e5 in ?? () from /usr/lib/libavcodec.so.56
#1  0x00007fffcc26cb8f in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffcc26d855 in ?? () from /usr/lib/libavcodec.so.56
#3  0x00007fffcc26d96c in ?? () from /usr/lib/libavcodec.so.56
#4  0x00007fffcc26e3b6 in ?? () from /usr/lib/libavcodec.so.56
#5  0x00007fffcc502f4d in avcodec_default_execute () from /usr/lib/libavcodec.so.56
#6  0x00007fffcc269d3a in ?? () from /usr/lib/libavcodec.so.56
#7  0x00007fffcc26a298 in ?? () from /usr/lib/libavcodec.so.56
#8  0x00007fffcc42e7eb in ?? () from /usr/lib/libavcodec.so.56
#9  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 63 (Thread 0x7ffee6ffd700 (LWP 25182)):
#0  0x00007fffcc271a53 in ?? () from /usr/lib/libavcodec.so.56
#1  0x00007fffcc2649d5 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffcc26c9e1 in ?? () from /usr/lib/libavcodec.so.56
#3  0x00007fffcc26d855 in ?? () from /usr/lib/libavcodec.so.56
#4  0x00007fffcc26e0ac in ?? () from /usr/lib/libavcodec.so.56
#5  0x00007fffcc502f4d in avcodec_default_execute () from /usr/lib/libavcodec.so.56
#6  0x00007fffcc269d3a in ?? () from /usr/lib/libavcodec.so.56
#7  0x00007fffcc26a298 in ?? () from /usr/lib/libavcodec.so.56
#8  0x00007fffcc42e7eb in ?? () from /usr/lib/libavcodec.so.56
#9  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 62 (Thread 0x7ffee77fe700 (LWP 25181)):
#0  0x00007fffcc289678 in ?? () from /usr/lib/libavcodec.so.56
#1  0x00007fffcc272903 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffcc2649d5 in ?? () from /usr/lib/libavcodec.so.56
#3  0x00007fffcc26c9e1 in ?? () from /usr/lib/libavcodec.so.56
#4  0x00007fffcc26d855 in ?? () from /usr/lib/libavcodec.so.56
#5  0x00007fffcc26e2f2 in ?? () from /usr/lib/libavcodec.so.56
#6  0x00007fffcc502f4d in avcodec_default_execute () from /usr/lib/libavcodec.so.56
#7  0x00007fffcc269d3a in ?? () from /usr/lib/libavcodec.so.56
#8  0x00007fffcc26a298 in ?? () from /usr/lib/libavcodec.so.56
#9  0x00007fffcc42e7eb in ?? () from /usr/lib/libavcodec.so.56
#10 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 61 (Thread 0x7ffee7fff700 (LWP 25180)):
#0  0x00007fffcc6ad870 in ?? () from /usr/lib/libavcodec.so.56
#1  0x00007ffee00c8060 in ?? ()
#2  0x00000000000003b0 in ?? ()
#3  0x00000000000003b4 in ?? ()
#4  0x00007ffee7ffeb60 in ?? ()
#5  0x00000000000004a8 in ?? ()
#6  0x00007fffcc2763f2 in ?? () from /usr/lib/libavcodec.so.56
#7  0x00007fffcc27764f in ?? () from /usr/lib/libavcodec.so.56
#8  0x00007fffcc26e2c4 in ?? () from /usr/lib/libavcodec.so.56
---Type <return> to continue, or q <return> to quit---
#9  0x00007fffcc502f4d in avcodec_default_execute () from /usr/lib/libavcodec.so.56
#10 0x00007fffcc269d3a in ?? () from /usr/lib/libavcodec.so.56
#11 0x00007fffcc26a298 in ?? () from /usr/lib/libavcodec.so.56
#12 0x00007fffcc42e7eb in ?? () from /usr/lib/libavcodec.so.56
#13 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 60 (Thread 0x7ffeecff9700 (LWP 25179)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 59 (Thread 0x7ffeed7fa700 (LWP 25178)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 58 (Thread 0x7ffeedffb700 (LWP 25177)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 57 (Thread 0x7ffeee7fc700 (LWP 25176)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e62b in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffcc26b999 in ?? () from /usr/lib/libavcodec.so.56
#3  0x00007fffcc26d313 in ?? () from /usr/lib/libavcodec.so.56
#4  0x00007fffcc26d855 in ?? () from /usr/lib/libavcodec.so.56
#5  0x00007fffcc26da00 in ?? () from /usr/lib/libavcodec.so.56
#6  0x00007fffcc26e2f2 in ?? () from /usr/lib/libavcodec.so.56
#7  0x00007fffcc502f4d in avcodec_default_execute () from /usr/lib/libavcodec.so.56
#8  0x00007fffcc269d3a in ?? () from /usr/lib/libavcodec.so.56
#9  0x00007fffcc26a298 in ?? () from /usr/lib/libavcodec.so.56
#10 0x00007fffcc42e7eb in ?? () from /usr/lib/libavcodec.so.56
#11 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 56 (Thread 0x7ffeeeffd700 (LWP 25175)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e62b in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffcc26b999 in ?? () from /usr/lib/libavcodec.so.56
#3  0x00007fffcc26d313 in ?? () from /usr/lib/libavcodec.so.56
#4  0x00007fffcc26d855 in ?? () from /usr/lib/libavcodec.so.56
#5  0x00007fffcc26e2f2 in ?? () from /usr/lib/libavcodec.so.56
#6  0x00007fffcc502f4d in avcodec_default_execute () from /usr/lib/libavcodec.so.56
#7  0x00007fffcc269d3a in ?? () from /usr/lib/libavcodec.so.56
#8  0x00007fffcc26a298 in ?? () from /usr/lib/libavcodec.so.56
#9  0x00007fffcc42e7eb in ?? () from /usr/lib/libavcodec.so.56
#10 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 55 (Thread 0x7ffeef7fe700 (LWP 25174)):
#0  0x00007fffeee23cfc in __lll_lock_wait () from /usr/lib/libpthread.so.0
#1  0x00007fffeee1db35 in pthread_mutex_lock () from /usr/lib/libpthread.so.0
#2  0x00007fffc3e0fb4b in ?? () from /usr/lib/mlt/libmltavformat.so
#3  0x00007ffff6fb3017 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#4  0x00007ffff6d98a6d in Mlt::Frame::get_image(mlt_image_format&, int&, int&, int) () from /usr/lib/libmlt++.so.3
#5  0x000000000082b63c in KThumb::getFrame(Mlt::Frame*, int, int) ()
#6  0x0000000000822675 in ProjectClip::slotExtractImage(QList<int>) ()
#7  0x00000000005c0f50 in QtConcurrent::VoidStoredMemberFunctionPointerCall1<void, ProjectClip, QList<int>, QList<int> >::runFunctor() ()
#8  0x0000000000557815 in QtConcurrent::RunFunctionTask<void>::run() ()
#9  0x00007ffff1065593 in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

---Type <return> to continue, or q <return> to quit---
Thread 54 (Thread 0x7ffeeffff700 (LWP 25173)):
#0  0x00007fffeee23cfc in __lll_lock_wait () from /usr/lib/libpthread.so.0
#1  0x00007fffeee1db35 in pthread_mutex_lock () from /usr/lib/libpthread.so.0
#2  0x00007fffc3e0fb4b in ?? () from /usr/lib/mlt/libmltavformat.so
#3  0x00007ffff6fb3017 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#4  0x00007ffff6d98a6d in Mlt::Frame::get_image(mlt_image_format&, int&, int&, int) () from /usr/lib/libmlt++.so.3
#5  0x000000000082b63c in KThumb::getFrame(Mlt::Frame*, int, int) ()
#6  0x0000000000822675 in ProjectClip::slotExtractImage(QList<int>) ()
#7  0x00000000005c0f50 in QtConcurrent::VoidStoredMemberFunctionPointerCall1<void, ProjectClip, QList<int>, QList<int> >::runFunctor() ()
#8  0x0000000000557815 in QtConcurrent::RunFunctionTask<void>::run() ()
#9  0x00007ffff1065593 in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 53 (Thread 0x7fff14ff9700 (LWP 25172)):
#0  0x00007fffeee23cfc in __lll_lock_wait () from /usr/lib/libpthread.so.0
#1  0x00007fffeee1db35 in pthread_mutex_lock () from /usr/lib/libpthread.so.0
#2  0x00007fffc3e0fb4b in ?? () from /usr/lib/mlt/libmltavformat.so
#3  0x00007ffff6fb3017 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#4  0x00007ffff6d98a6d in Mlt::Frame::get_image(mlt_image_format&, int&, int&, int) () from /usr/lib/libmlt++.so.3
#5  0x000000000082b63c in KThumb::getFrame(Mlt::Frame*, int, int) ()
#6  0x0000000000822675 in ProjectClip::slotExtractImage(QList<int>) ()
#7  0x00000000005c0f50 in QtConcurrent::VoidStoredMemberFunctionPointerCall1<void, ProjectClip, QList<int>, QList<int> >::runFunctor() ()
#8  0x0000000000557815 in QtConcurrent::RunFunctionTask<void>::run() ()
#9  0x00007ffff1065593 in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 52 (Thread 0x7fff157fa700 (LWP 25170)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e9bb in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffcbfe5593 in avcodec_close () from /usr/lib/libavcodec.so.56
#3  0x00007fffc3e0c426 in ?? () from /usr/lib/mlt/libmltavformat.so
#4  0x00007ffff6fccabe in ?? () from /usr/lib/libmlt.so.6
#5  0x00007ffff6fccb58 in mlt_cache_item_close () from /usr/lib/libmlt.so.6
#6  0x00007ffff6fb6fc9 in mlt_property_close () from /usr/lib/libmlt.so.6
#7  0x00007ffff6fb9100 in mlt_properties_close () from /usr/lib/libmlt.so.6
#8  0x00007ffff6fb29ec in mlt_frame_close () from /usr/lib/libmlt.so.6
#9  0x00007ffff6d98840 in Mlt::Frame::~Frame() () from /usr/lib/libmlt++.so.3
#10 0x00007ffff6d98879 in Mlt::Frame::~Frame() () from /usr/lib/libmlt++.so.3
#11 0x00000000008226ba in ProjectClip::slotExtractImage(QList<int>) ()
#12 0x00000000005c0f50 in QtConcurrent::VoidStoredMemberFunctionPointerCall1<void, ProjectClip, QList<int>, QList<int> >::runFunctor() ()
#13 0x0000000000557815 in QtConcurrent::RunFunctionTask<void>::run() ()
#14 0x00007ffff1065593 in ?? () from /usr/lib/libQt5Core.so.5
#15 0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#16 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#17 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 51 (Thread 0x7fff15ffb700 (LWP 25166)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffd06fd50d in ?? () from /usr/lib/mlt/libmltsdl.so
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 50 (Thread 0x7fff167fc700 (LWP 25165)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 49 (Thread 0x7fff16ffd700 (LWP 25164)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 48 (Thread 0x7fff177fe700 (LWP 25163)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 47 (Thread 0x7fff17fff700 (LWP 25162)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 46 (Thread 0x7fff3cbf7700 (LWP 25161)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 45 (Thread 0x7fff3d3f8700 (LWP 25160)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 44 (Thread 0x7fff3dbf9700 (LWP 25159)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 43 (Thread 0x7fff3e3fa700 (LWP 25158)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 42 (Thread 0x7fff3ebfb700 (LWP 25157)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 41 (Thread 0x7fff7dffa700 (LWP 25156)):
#0  0x00007ffff066a251 in ppoll () from /usr/lib/libc.so.6
#1  0x00007fffea95261d in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#2  0x00007fffea952c0e in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#3  0x00007fffd01deeed in ?? () from /usr/lib/libSDL-1.2.so.0
#4  0x00007fffd01b2800 in ?? () from /usr/lib/libSDL-1.2.so.0
#5  0x00007fffd01bafe8 in ?? () from /usr/lib/libSDL-1.2.so.0
#6  0x00007fffd01fc8a9 in ?? () from /usr/lib/libSDL-1.2.so.0
#7  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 40 (Thread 0x7fff7cff8700 (LWP 25155)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007ffff6fc61a3 in ?? () from /usr/lib/libmlt.so.6
#2  0x000000000076174d in RenderThread::run() ()
#3  0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 39 (Thread 0x7fff7d7f9700 (LWP 25154)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffd06fdf7f in ?? () from /usr/lib/mlt/libmltsdl.so
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 37 (Thread 0x7fff3f7fc700 (LWP 25152)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
---Type <return> to continue, or q <return> to quit---
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 36 (Thread 0x7fff3fffd700 (LWP 25151)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 35 (Thread 0x7fff4cbf9700 (LWP 25150)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 34 (Thread 0x7fff4d3fa700 (LWP 25149)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 33 (Thread 0x7fff4dbfb700 (LWP 25148)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 32 (Thread 0x7fff4e3fc700 (LWP 25147)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 31 (Thread 0x7fff4ebfd700 (LWP 25146)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 30 (Thread 0x7fff4f3fe700 (LWP 25145)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 29 (Thread 0x7fff4fbff700 (LWP 25144)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 24 (Thread 0x7fff7e7fb700 (LWP 25137)):
#0  0x00007ffff05bd5f8 in raise () from /usr/lib/libc.so.6
#1  0x00007ffff05bea7a in abort () from /usr/lib/libc.so.6
#2  0x00007ffff05fc05a in __libc_message () from /usr/lib/libc.so.6
#3  0x00007ffff06019a6 in malloc_printerr () from /usr/lib/libc.so.6
#4  0x00007ffff060218e in _int_free () from /usr/lib/libc.so.6
#5  0x00007fffc3e100af in ?? () from /usr/lib/mlt/libmltavformat.so
#6  0x00007ffff6fb3017 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#7  0x00007ffff6d98a6d in Mlt::Frame::get_image(mlt_image_format&, int&, int&, int) () from /usr/lib/libmlt++.so.3
#8  0x000000000082b63c in KThumb::getFrame(Mlt::Frame*, int, int) ()
#9  0x0000000000822675 in ProjectClip::slotExtractImage(QList<int>) ()
#10 0x00000000005c0f50 in QtConcurrent::VoidStoredMemberFunctionPointerCall1<void, ProjectClip, QList<int>, QList<int> >::runFunctor() ()
#11 0x0000000000557815 in QtConcurrent::RunFunctionTask<void>::run() ()
#12 0x00007ffff1065593 in ?? () from /usr/lib/libQt5Core.so.5
#13 0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#14 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#15 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

---Type <return> to continue, or q <return> to quit---
Thread 23 (Thread 0x7fff7effc700 (LWP 25135)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 22 (Thread 0x7fff7f7fd700 (LWP 25134)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 21 (Thread 0x7fff7fffe700 (LWP 25133)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 20 (Thread 0x7fff989fe700 (LWP 25132)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 19 (Thread 0x7fff991ff700 (LWP 25131)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 18 (Thread 0x7fff99a00700 (LWP 25130)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7fff9a201700 (LWP 25129)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7fff9aa02700 (LWP 25128)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7fff9b203700 (LWP 25127)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffcc42e875 in ?? () from /usr/lib/libavcodec.so.56
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7fff9ba04700 (LWP 25126)):
#0  0x00007fffeee23cfc in __lll_lock_wait () from /usr/lib/libpthread.so.0
#1  0x00007fffeee1db35 in pthread_mutex_lock () from /usr/lib/libpthread.so.0
#2  0x00007fffc3e0fb4b in ?? () from /usr/lib/mlt/libmltavformat.so
#3  0x00007ffff6fb3017 in mlt_frame_get_image () from /usr/lib/libmlt.so.6
#4  0x00007ffff6d98a6d in Mlt::Frame::get_image(mlt_image_format&, int&, int&, int) () from /usr/lib/libmlt++.so.3
#5  0x000000000082b63c in KThumb::getFrame(Mlt::Frame*, int, int) ()
#6  0x0000000000822675 in ProjectClip::slotExtractImage(QList<int>) ()
#7  0x00000000005c0f50 in QtConcurrent::VoidStoredMemberFunctionPointerCall1<void, ProjectClip, QList<int>, QList<int> >::runFunctor() ()
#8  0x0000000000557815 in QtConcurrent::RunFunctionTask<void>::run() ()
#9  0x00007ffff1065593 in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007ffff067313d in clone () from /usr/lib/libc.so.6

---Type <return> to continue, or q <return> to quit---
Thread 13 (Thread 0x7fffa883a700 (LWP 25122)):
#0  0x00007ffff066a18d in poll () from /usr/lib/libc.so.6
#1  0x00007fffec953c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffec953d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff12a023f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff124726a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007ffff1063af4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7fffa913b700 (LWP 25121)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007ffff1069d2b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007ffff648e38e in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007ffff648ec13 in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 11 (Thread 0x7fffa993c700 (LWP 25120)):
#0  0x00007ffff066a18d in poll () from /usr/lib/libc.so.6
#1  0x00007fffec953c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffec953d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff12a023f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff124726a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007ffff1063af4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 10 (Thread 0x7fffaa23d700 (LWP 25119)):
#0  0x00007fffeee2107f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007ffff1069d2b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007ffff648e38e in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007ffff648ec13 in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fffb7df7700 (LWP 25114)):
#0  0x00007ffff066a18d in poll () from /usr/lib/libc.so.6
#1  0x00007fffea960f51 in ?? () from /usr/lib/libpulse.so.0
#2  0x00007fffea952571 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#3  0x00007fffea952c0e in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#4  0x00007fffea952cc0 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#5  0x00007fffea960ee6 in ?? () from /usr/lib/libpulse.so.0
#6  0x00007fffe3f665b8 in ?? () from /usr/lib/pulseaudio/libpulsecommon-7.0.so
#7  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fffbe4e8700 (LWP 25112)):
#0  0x00007ffff066a18d in poll () from /usr/lib/libc.so.6
#1  0x00007fffec953c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffec953d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff12a023f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff124726a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007ffff1063af4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fffee8a9335 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fffbf6ec700 (LWP 25111)):
#0  0x00007ffff066a18d in poll () from /usr/lib/libc.so.6
#1  0x00007fffec953c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffec953d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff12a023f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff124726a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
---Type <return> to continue, or q <return> to quit---
#5  0x00007ffff1063af4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fffee8a9335 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fffc52e3700 (LWP 25108)):
#0  0x00007ffff066a18d in poll () from /usr/lib/libc.so.6
#1  0x00007fffca0c070c in ?? () from /usr/lib/libusb-1.0.so.0
#2  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fffdff30700 (LWP 25107)):
#0  0x00007ffff066a18d in poll () from /usr/lib/libc.so.6
#1  0x00007fffea50fae2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fffea511757 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007fffe2298ca9 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007ffff1068a9e in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fffeee1b4a4 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007ffff067313d in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7ffff7ed3800 (LWP 25103)):
#0  0x00007ffff066a18d in poll () from /usr/lib/libc.so.6
#1  0x00007fffec953c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fffec953d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff12a025b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff124726a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007ffff124f20c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00000000005153b2 in main ()
(gdb)
Comment 1 qubodup 2015-11-24 06:10:12 UTC 
I cannot confirm this in recent git version of Kdenlive.

At least not with my 5:57 test video:
https://archive.org/download/StockVideoGameVideo/TriggerRallyGeneralPurposeVideo.mp4

Should the link not work, it's the "MPEG4" download from https://archive.org/details/StockVideoGameVideo

I demonstrate this inability to reproduce this error message/crash in a video:
https://youtu.be/bZUAowpFyTI

How long was your video?

Can you reproduce this issue using the video I used?
Comment 2 Evert Vorster 2016-02-03 11:38:30 UTC 
Hi there. 

kdenlive is certainly more difficult to crash now. 
My video clips are 4K, and 3.7Gb each. 
When just zooming through the clip, the memory used by kdenlive slowly increases, and before long my system runs out of memory, and then kdenlive crashes.

-Evert-
Comment 3 Wegwerf 2016-08-04 17:04:39 UTC 
Evert, is this bug still relevant? Or has it been fixed? We would like to reduce the bug report backlog... ;)
Comment 4 Evert Vorster 2016-08-08 10:13:47 UTC 
I am unable to make kdenlive crash now with this effect.