Package: kdenlive
Version: 16.04.1-1
Severity: normal

Dear Maintainer,

When I try to run the "Reverse Clip" job on a video clip, one of a few
errors occurs. I've tried this on a few different video clips,  I can't
find any clear pattern as to which error occurs.


GDB sessions follow.

Error 1: Segmentation fault in xmlCheckUTF8__internal_alias (libxml2)

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffa67fb700 (LWP 12597)]
0x00007fffccd19483 in xmlCheckUTF8__internal_alias (
    utf=utf@entry=0x703532 <error: Cannot access memory at address
0x703532>)
    at ../../xmlstring.c:795
795     ../../xmlstring.c: No such file or directory.
(gdb) bt
#0  0x00007fffccd19483 in xmlCheckUTF8__internal_alias (
    utf=utf@entry=0x703532 <error: Cannot access memory at address
0x703532>)
    at ../../xmlstring.c:795
#1  0x00007fffccca3311 in xmlNewPropInternal (node=0x7fff681faa30,
    ns=ns@entry=0x0, name=name@entry=0x7fffc8aba09b "description",
    value=0x703532 <error: Cannot access memory at address 0x703532>,
    eatname=eatname@entry=0) at ../../tree.c:1875
#2  0x00007fffccca34c8 in xmlNewPropInternal (eatname=0,
    value=<optimized out>, name=0x7fffc8aba09b "description", ns=0x0,
    node=0x7fff681faa30) at ../../tree.c:1940
#3  xmlNewProp__internal_alias (node=node@entry=0x7fff681faa30,
    name=name@entry=0x7fffc8aba09b "description", value=<optimized out>)
    at ../../tree.c:1939
#4  0x00007fffc8ab5c86 in xml_make_doc (
    consumer=consumer@entry=0x7fff681e4b20,
    service=service@entry=0x7fff681e4a80) at consumer_xml.c:760
#5  0x00007fffc8ab611a in output_xml
(consumer=consumer@entry=0x7fff681e4b20)
    at consumer_xml.c:842
#6  0x00007fffc8ab62d0 in consumer_start (consumer=0x7fff681e4b20)
    at consumer_xml.c:898
#7  0x00007ffff66e8536 in mlt_consumer_start (self=0x7fff681e4b20)
    at mlt_consumer.c:599
#8  0x00007ffff64b811c in Mlt::Consumer::run (this=0x7fff681e49d0)
    at MltConsumer.cpp:129
#9  0x000055555565f78b in MeltJob::startJob (this=0x55555cccdb40)
    at /build/kdenlive-16.04.1/src/project/jobs/meltjob.cpp:218
#10 0x00005555556662cf in JobManager::slotProcessJobs (this=0x555558746f50)
    at /build/kdenlive-16.04.1/src/project/jobs/jobmanager.cpp:191
#11 0x000055555563b33d in QtConcurrent::RunFunctionTask<void>::run (
    this=0x55555cd2cb00)
    at
/usr/include/x86_64-linux-gnu/qt5/QtConcurrent/qtconcurrentrunbase.h:130
#12 0x00007ffff07e2303 in QThreadPoolThread::run (this=0x7fffac08cfc0)
    at thread/qthreadpool.cpp:93
#13 0x00007ffff07e580e in QThreadPrivate::start (arg=0x7fffac08cfc0)
    at thread/qthread_unix.cpp:331
#14 0x00007fffec7bb454 in start_thread (arg=0x7fffa67fb700)
    at pthread_create.c:334
#15 0x00007fffefbf0e5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109


Note: In place of 0x703532 in the backtrace above, have also gotten
various other addresses, including 0x513c70614d512c67 and 0x30.


Error 2: Arithmetic exception in MltVideoProfile::isCompatible (Kdenlive)

Program received signal SIGFPE, Arithmetic exception.
[Switching to Thread 0x7fffba697700 (LWP 12840)]
0x0000555555947fe5 in MltVideoProfile::isCompatible (
    this=this@entry=0x7fffba696af0, point=...)
    at /build/kdenlive-16.04.1/src/definitions.cpp:115
115     /build/kdenlive-16.04.1/src/definitions.cpp: No such file or
directory.
(gdb) bt
#0  0x0000555555947fe5 in MltVideoProfile::isCompatible (
    this=this@entry=0x7fffba696af0, point=...)
    at /build/kdenlive-16.04.1/src/definitions.cpp:115
#1  0x0000555555908ce1 in ProducerQueue::processFileProperties (
    this=<optimized out>)
    at /build/kdenlive-16.04.1/src/mltcontroller/producerqueue.cpp:237
#2  0x000055555563b33d in QtConcurrent::RunFunctionTask<void>::run (
    this=0x55555cca5b80)
    at
/usr/include/x86_64-linux-gnu/qt5/QtConcurrent/qtconcurrentrunbase.h:130
#3  0x00007ffff07e2303 in QThreadPoolThread::run (this=0x555557178180)
    at thread/qthreadpool.cpp:93
#4  0x00007ffff07e580e in QThreadPrivate::start (arg=0x555557178180)
    at thread/qthread_unix.cpp:331
#5  0x00007fffec7bb454 in start_thread (arg=0x7fffba697700)
    at pthread_create.c:334
#6  0x00007fffefbf0e5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109


What's interesting about this error is that a .mlt file is produced, but
the <profile> tag in it has corrupt values. A sample follows:


<profile width="1702258015" height="7566446" progressive="1713386802"
sample_aspect_num="1677751152" sample_aspect_den="956329573"
display_aspect_num="235736320" display_aspect_den="37"
frame_rate_num="37" frame_rate_den="0" colorspace="0"/>


Trying to import this into a new project results in the same arithmetic
exception.

Error 3: Segmentation fault in mlt_profile_fps (libmlt)


Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff89ff9700 (LWP 13146)]
0x00007ffff66eccad in mlt_profile_fps (profile=0x73746e6576655f)
    at mlt_profile.c:267
267     mlt_profile.c: No such file or directory.
(gdb) bt
#0  0x00007ffff66eccad in mlt_profile_fps (profile=0x73746e6576655f)
    at mlt_profile.c:267
#1  0x00007ffff66db03c in mlt_properties_get_position (
    self=self@entry=0x7fff6c43f4a0, name=name@entry=0x7ffff66ef469 "out")
    at mlt_properties.c:1075
#2  0x00007ffff66e0dec in mlt_producer_get_out
(self=self@entry=0x7fff6c43f4a0)
    at mlt_producer.c:527
#3  0x00007ffff66e0dfe in mlt_producer_get_playtime (
    self=self@entry=0x7fff6c43f4a0) at mlt_producer.c:539
#4  0x00007ffff66e1f12 in mlt_multitrack_refresh (
    self=self@entry=0x7fff6c43bfc0) at mlt_multitrack.c:144
#5  0x00007ffff66e2030 in mlt_multitrack_connect (self=0x7fff6c43bfc0,
    producer=0x7fff6c43f4a0, track=<optimized out>) at mlt_multitrack.c:225
#6  0x00007ffff66ea8d3 in mlt_tractor_set_track (self=<optimized out>,
    producer=<optimized out>, index=<optimized out>) at mlt_tractor.c:244
#7  0x000055555565f71c in MeltJob::startJob (this=0x55555c671e10)
    at /build/kdenlive-16.04.1/src/project/jobs/meltjob.cpp:211
#8  0x00005555556662cf in JobManager::slotProcessJobs (this=0x55555c9e54a0)
    at /build/kdenlive-16.04.1/src/project/jobs/jobmanager.cpp:191
#9  0x000055555563b33d in QtConcurrent::RunFunctionTask<void>::run (
    this=0x555555e699e0)
    at
/usr/include/x86_64-linux-gnu/qt5/QtConcurrent/qtconcurrentrunbase.h:130
#10 0x00007ffff07e2303 in QThreadPoolThread::run (this=0x55555c78de30)
    at thread/qthreadpool.cpp:93
#11 0x00007ffff07e580e in QThreadPrivate::start (arg=0x55555c78de30)
    at thread/qthread_unix.cpp:331
#12 0x00007fffec7bb454 in start_thread (arg=0x7fff89ff9700)
    at pthread_create.c:334
#13 0x00007fffefbf0e5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109


Thank you for your consideration.

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing'), (300, 'oldstable-updates'), (300,
'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.5.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages kdenlive depends on:
ii  ffmpeg                       7:3.0.2-3
ii  kded5                        5.22.0-1
ii  kdenlive-data                16.04.1-1
ii  kinit                        5.22.0-1
ii  kio                          5.22.0-1
ii  libc6                        2.22-9
ii  libgcc1                      1:6.1.1-4
ii  libgl1-mesa-glx [libgl1]     11.2.2-1
ii  libglu1-mesa [libglu1]       9.0.0-2.1
ii  libkf5archive5               5.22.0-1
ii  libkf5attica5                5.22.0-1
ii  libkf5auth5                  5.22.0-1
ii  libkf5bookmarks5             5.22.0-2
ii  libkf5codecs5                5.22.0-1
ii  libkf5completion5            5.22.0-1
ii  libkf5configcore5            5.22.0-1
ii  libkf5configgui5             5.22.0-1
ii  libkf5configwidgets5         5.22.0-1
ii  libkf5coreaddons5            5.22.0-1
ii  libkf5crash5                 5.22.0-1
ii  libkf5dbusaddons5            5.22.0-1
ii  libkf5filemetadata3          5.22.0-1
ii  libkf5guiaddons5             5.22.0-1
ii  libkf5i18n5                  5.22.1-1
ii  libkf5iconthemes5            5.22.0-1
ii  libkf5itemviews5             5.22.0-1
ii  libkf5jobwidgets5            5.22.0-1
ii  libkf5kiocore5               5.22.0-1
ii  libkf5kiofilewidgets5        5.22.0-1
ii  libkf5kiontlm5               5.22.0-1
ii  libkf5kiowidgets5            5.22.0-1
ii  libkf5newstuff5              5.22.0-1
ii  libkf5notifications5         5.22.0-1
ii  libkf5notifyconfig5          5.22.0-1
ii  libkf5plotting5              5.22.0-1
ii  libkf5service-bin            5.22.0-1
ii  libkf5service5               5.22.0-1
ii  libkf5solid5                 5.22.0-1
ii  libkf5sonnetui5              5.22.0-2
ii  libkf5textwidgets5           5.22.0-1
ii  libkf5widgetsaddons5         5.22.0-1
ii  libkf5xmlgui5                5.22.0-1
ii  libmlt++3                    6.2.0-1
ii  libmlt6                      6.2.0-1
ii  libqt5concurrent5            5.5.1+dfsg-17
ii  libqt5core5a                 5.5.1+dfsg-17
ii  libqt5dbus5                  5.5.1+dfsg-17
ii  libqt5gui5                   5.5.1+dfsg-17
ii  libqt5network5               5.5.1+dfsg-17
ii  libqt5qml5                   5.5.1-3
ii  libqt5quick5                 5.5.1-3
ii  libqt5script5                5.5.1+dfsg-2
ii  libqt5svg5                   5.5.1-2
ii  libqt5widgets5               5.5.1+dfsg-17
ii  libqt5xml5                   5.5.1+dfsg-17
ii  libstdc++6                   6.1.1-4
ii  libv4l-0                     1.10.0-2
ii  melt                         6.2.0-1
ii  oxygen-icon-theme            4:4.14.0-1
ii  qml-module-qtquick-controls  5.5.1-2
ii  qml-module-qtquick2          5.5.1-3

Versions of packages kdenlive recommends:
ii  dvdauthor        0.7.0-1.4+b1
ii  dvgrab           3.5-2+b3
ii  frei0r-plugins   1.4-3+b1
ii  genisoimage      9:1.1.11-3
ii  recordmydesktop  0.3.8.1+svn602-1+b1
ii  swh-plugins      0.4.15+1-8

Versions of packages kdenlive suggests:
pn  khelpcenter  <none>

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