Bug 357802

#0  producer_get_frame (parent=0x7fff900c8470, frame=0x7fff900d1188, index=-1) at mlt_multitrack.c:554
#1  0x00007ffff6de536e in producer_get_frame (service=0x7fff900c8470, frame=0x7fff900d1188, index=-1) at mlt_producer.c:643
#2  0x00007ffff6de355c in mlt_service_get_frame (self=0x7fff900c8470, frame=0x7fff900d1188, index=index@entry=-1) at mlt_service.c:563
#3  0x00007ffff6decfd3 in transition_get_frame (service=0x7fff900cf0b0, frame=0x7fff9bffe688, index=0) at mlt_transition.c:447
#4  0x00007ffff6de355c in mlt_service_get_frame (self=0x7fff900cf0b0, frame=frame@entry=0x7fff9bffe688, index=index@entry=0) at mlt_service.c:563
#5  0x00007ffff6dedaff in producer_get_frame (parent=0x7fff900c2980, frame=0x7fff9bffe818, track=<optimized out>) at mlt_tractor.c:501
#6  0x00007ffff6de536e in producer_get_frame (service=0x7fff900c2980, frame=0x7fff9bffe818, index=0) at mlt_producer.c:643
#7  0x00007ffff6de355c in mlt_service_get_frame (self=self@entry=0x7fff900c2980, frame=frame@entry=0x7fff9bffe818, index=index@entry=0) at mlt_service.c:563
#8  0x00007ffff6df0bc8 in mlt_profile_from_producer (profile=0x7fff90003fa0, producer=0x7fff900c2980) at mlt_profile.c:414
#9  0x00007ffff6bc0bca in Mlt::Profile::from_producer(Mlt::Producer&) () from /home/harald/kdenlive-local/local/lib/libmlt++.so.3
#10 0x00000000009c5a19 in ProducerQueue::processFileProperties() ()
#11 0x00000000009ce3ce in QtConcurrent::VoidStoredMemberFunctionPointerCall0<void, ProducerQueue>::runFunctor() ()
#12 0x0000000000668db8 in QtConcurrent::RunFunctionTask<void>::run() ()
#13 0x00007ffff1ceee73 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007ffff1cf22be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fffefee16aa in start_thread (arg=0x7fff9bfff700) at pthread_create.c:333
#16 0x00007ffff1302eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Reproducible: Always