0001549: Crash when loading Lossless Matroska clip

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0001549

Kdenlive

File Loading

public

2010-04-10 13:19

2010-09-21 19:14

Reporter

foobar123

Assigned To

ddennedy

Priority

normal

Severity

crash

Reproducibility

always

Status

closed

Resolution

fixed

Platform

32 bit intel and alike

Kubuntu Linux

OS Version

9.10

Product Version

Recent git

Target Version

Fixed in Version

0.7.8

Summary

0001549: Crash when loading Lossless Matroska clip

Description

Hi.

When trying to load an OGV file transcoded to Lossless Matroska, Kdenlive crashes.

I'm using version (from About dialog):
"Kdenlive
Version 0.7.8
Using KDE Development Platform 4.4.2 (KDE 4.4.2)"

Although I have the debug symbols installed, I can't seem to generate a useful backtrace. This is how the backtrace looks like:

Application: Kdenlive (kdenlive), signal: Segmentation fault
[Current thread is 1 (Thread 0xb787e700 (LWP 8030))]

Thread 4 (Thread 0xb5640b70 (LWP 8043)):
#0 0x00bb6422 in __kernel_vsyscall ()
#1 0x01c89a71 in select () from /lib/tls/i686/cmov/libc.so.6
0000002 0x02c46cef in QProcessManager::run (this=0x2d80890) at io/qprocess_unix.cpp:245
0000003 0x02b6836e in QThreadPrivate::start (arg=0x2d80890) at thread/qthread_unix.cpp:248
0000004 0x0021b80e in start_thread (arg=0xb5640b70) at pthread_create.c:300
0000005 0x01c908de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xb20ffb70 (LWP 8293)):
#0 0x00bb6422 in __kernel_vsyscall ()
#1 0x00220142 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:179
0000002 0x00982269 in mlt_consumer_get_frame () from /usr/lib/libmlt.so.2
0000003 0xb20ff1c8 in ?? ()
0000004 0x00000000 in ?? ()

Thread 2 (Thread 0xb10fdb70 (LWP 8294)):
#0 0x00bb6422 in __kernel_vsyscall ()
#1 0x0021fe15 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
0000002 0x0786546f in ?? () from /usr/lib/mlt/libmltsdl.so
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 0xb787e700 (LWP 8030)):
[KCrash Handler]
0000006 0x025a7798 in ?? () from /usr/lib/mlt/libmltavformat.so
0000007 0x093e3c28 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

In the hope that it can be easily reproduced, I've uploaded the Lossless Matroska file I'm trying to load:
http://tumbetoene.tuxfamily.org/temp/kdenlive/capture0005.ogv.mkv [^]

It was generated in Kdenlive, by right-clicking on the clip in the Project Tree and selecting Transcode -> Lossless Matroska, from this file:
http://tumbetoene.tuxfamily.org/temp/kdenlive/capture0005.ogv [^]

And this is the project file I've been using:
http://tumbetoene.tuxfamily.org/temp/kdenlive/transcodecrash.kdenlive [^]

If you need any other information, let me know.

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Notes
(0005087) ddennedy (developer) 2010-05-01 07:39	I am not getting a crash when I load the matroska I created from your ogv or another 720x576 file I have. However, the latter does give me distorted audio, which indicates a problem that could be causing memory corruption.

(0005870) ddennedy (developer) 2010-09-21 18:35	Fixed in mlt git commit 713917b4b.

Issue History
Date Modified	Username	Field	Change
2010-04-10 13:19	foobar123	New Issue
2010-05-01 07:37	ddennedy	Assigned To	=> ddennedy
2010-05-01 07:37	ddennedy	Status	new => assigned
2010-05-01 07:39	ddennedy	Note Added: 0005087
2010-09-21 18:35	ddennedy	Note Added: 0005870
2010-09-21 18:35	ddennedy	Status	assigned => resolved
2010-09-21 18:35	ddennedy	Fixed in Version	=> 0.7.8
2010-09-21 18:35	ddennedy	Resolution	open => fixed
2010-09-21 19:14	ttill	Status	resolved => closed