Re: [Linphone-users] BUG in using USB camera. Core file at startup

[Gautier Pelloux-Prayer]

Hi,

I could not reproduce the issue on Linphone MacOS 3.8.2. What version are you 
using?

To ease investigate the bug, I advise you to follow 
https://wiki.linphone.org/wiki/index.php/Faq#I_have_a_problem._How_to_get_logs.2Ftools.2Fcontacts_to_troubleshoot_the_issue.3F

Thanks,

Gautier Pelloux-Prayer
Software Engineer @ Belledonne Communications

> On 21 May 2015, at 08:16, georgi stefanov <address@hidden> wrote:
> 
> Hi All,
> 
> I have found a bug in linphone.
> I can easy reproduce it using the following steps:
> 
> 0.attach usb camera
> 1.start linphone
> 2.enable video
> 3.enable self view
> 4.quit linphone
> 5.detach the usb camera
> 6.start linphone
> 
> After step 6 I have core file
> gdb linphone core 
> GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
> Copyright (C) 2014 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "i586-linux-gnu".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>.
> Find the GDB manual and other documentation resources online at:
> <http://www.gnu.org/software/gdb/documentation/>.
> For help, type "help".
> Type "apropos word" to search for commands related to "word"...
> Reading symbols from linphone...(no debugging symbols found)...done.
> [New LWP 10317]
> [New LWP 10322]
> [New LWP 10318]
> [New LWP 10321]
> [New LWP 10323]
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library 
> "/lib/i386-linux-gnu/i686/cmov/libthread_db.so.1".
> Core was generated by `linphone'.
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  __GI___libc_free (mem=0x8) at malloc.c:2929
> 2929    malloc.c: No such file or directory.
> (gdb) bt
> #0  __GI___libc_free (mem=0x8) at malloc.c:2929
> #1  0xb6308ad2 in av_free (ptr=<optimized out>) at 
> /build/libav-uuYIjZ/libav-11.3/libavutil/mem.c:194
> #2  av_freep (address@hidden) at 
> /build/libav-uuYIjZ/libav-11.3/libavutil/mem.c:201
> #3  0xb6303127 in av_frame_unref (address@hidden) at 
> /build/libav-uuYIjZ/libav-11.3/libavutil/frame.c:290
> #4  0xb678d7ac in avcodec_decode_video2 (avctx=0xbff47850, 
> picture=0xbff477dc, got_picture_ptr=0xbff477d8, 
>     avpkt=0xbff47808) at 
> /build/libav-uuYIjZ/libav-11.3/libavcodec/utils.c:1593
> #5  0xb75e88f2 in ?? () from 
> /usr/lib/i386-linux-gnu/libmediastreamer_voip.so.3
> #6  0xb75e8e80 in ms_load_jpeg_as_yuv () from 
> /usr/lib/i386-linux-gnu/libmediastreamer_voip.so.3
> #7  0xb75e8f84 in static_image_preprocess () from 
> /usr/lib/i386-linux-gnu/libmediastreamer_voip.so.3
> #8  0xb75a0a94 in ms_filter_preprocess () from 
> /usr/lib/i386-linux-gnu/libmediastreamer_base.so.3
> #9  0xb75a1f34 in ms_ticker_attach_multiple () from 
> /usr/lib/i386-linux-gnu/libmediastreamer_base.so.3
> #10 0xb75a1fde in ms_ticker_attach () from 
> /usr/lib/i386-linux-gnu/libmediastreamer_base.so.3
> #11 0xb75eae0b in video_preview_start () from 
> /usr/lib/i386-linux-gnu/libmediastreamer_voip.so.3
> #12 0xb7678561 in ?? () from /usr/lib/i386-linux-gnu/liblinphone.so.5
> #13 0xb767f04d in linphone_core_iterate () from 
> /usr/lib/i386-linux-gnu/liblinphone.so.5
> #14 0x0805abe3 in ?? ()
> #15 0xb522ba21 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
> #16 0xb522ae03 in g_main_context_dispatch () from 
> /lib/i386-linux-gnu/libglib-2.0.so.0
> #17 0xb522b219 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
> #18 0xb522b5c9 in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
> #19 0xb5a1c1b5 in gtk_main () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
> #20 0x08058a12 in main ()
> (gdb) quit
> 
> 
> I am using:
> lsb_release -a
> LSB Version:    
> core-2.0-ia32:core-2.0-noarch:core-3.0-ia32:core-3.0-noarch:core-3.1-ia32:core-3.1-noarch:core-3.2-ia32:core-3.2-noarch:core-4.0-ia32:core-4.0-noarch:core-4.1-ia32:core-4.1-noarch:security-4.0-ia32:security-4.0-noarch:security-4.1-ia32:security-4.1-noarch
> Distributor ID: Debian
> Description:    Debian GNU/Linux testing (stretch)
> Release:        testing
> Codename:       stretch
> 
> I hope I have been usefull to you
> Georgi
> -- 
> Georgi Stefanov 
> R&D Engineer 
> Tel: +35989 2299057 
> address@hidden 
> Skype: georgi.rosenov 
> Location: Sofia, Bulgaria 
> 
> 
> 
> 
> 
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