[AG-TECH] h264 problem

Fri Jun 13 08:24:25 CDT 2008

Had a meeting today with a number of participants, one of which was using
insors (or whatever it's called these days) and was apparently transmitting
h264 (as far as vic was concerned).  vic (vic-2.8ucl1.3.1-0.4.20080409svn.fc8)
baulked trying to decode the video and crashed.  Muting that source meant all
was well bar being able to see their video.  Once they dropped back to h261
all was well.

Ideas as to why this happened?

[ lots of these lines ]
[h264 @ 0x86c8bd8]get_buffer() failed (stride changed)
[h264 @ 0x86c8bd8]decode_slice_header error
[h264 @ 0x86c8bd8]get_buffer() failed (stride changed)
[h264 @ 0x86c8bd8]decode_slice_header error
[h264 @ 0x86c8bd8]get_buffer() failed (stride changed)
[h264 @ 0x86c8bd8]decode_slice_header error
[h264 @ 0x86c8bd8]get_buffer() failed (stride changed)
[h264 @ 0x86c8bd8]decode_slice_header error
[h264 @ 0x86c8bd8]get_buffer() failed (stride changed)
[h264 @ 0x86c8bd8]decode_slice_header error
[h264 @ 0x86c8bd8]get_buffer() failed (stride changed)
[h264 @ 0x86c8bd8]decode_slice_header error
*** glibc detected *** vic: corrupted double-linked list: 0x09082350 ***
======= Backtrace: =========
/lib/libc.so.6[0xc4c537]
/lib/libc.so.6(__libc_malloc+0x7b)[0xc4db7b]
/usr/lib/libxcb.so.1[0xda7749]
/usr/lib/libxcb.so.1(xcb_poll_for_event+0x44)[0xda7b34]
/usr/lib/libX11.so.6[0x431a919]
/usr/lib/libX11.so.6[0x431ac17]
/usr/lib/libX11.so.6(_XEventsQueued+0x4f)[0x431af9f]
/usr/lib/libX11.so.6(_XFlush+0x42)[0x431b022]
/usr/lib/libX11.so.6(XFlush+0x31)[0x42f4771]
/usr/lib/libtk8.4.so[0x2d448a]
/usr/lib/libtcl8.4.so(Tcl_DoOneEvent+0x153)[0x1d6333]
/usr/lib/libtk8.4.so(Tk_MainLoop+0x2f)[0x24ca2f]
vic[0x8060ab4]
/lib/libc.so.6(__libc_start_main+0xe0)[0xbf8390]
vic(__gxx_personality_v0+0x371)[0x804c481]
======= Memory map: ========
00110000-00111000 r-xp 00110000 00:00 0          [vdso]
00147000-0015c000 r-xp 00000000 fd:02 34333      /lib/libnsl-2.7.so
0015c000-0015d000 r-xp 00014000 fd:02 34333      /lib/libnsl-2.7.so
0015d000-0015e000 rwxp 00015000 fd:02 34333      /lib/libnsl-2.7.so
0015e000-00160000 rwxp 0015e000 00:00 0 
00162000-0021d000 r-xp 00000000 fd:02 1834975    /usr/lib/libtcl8.4.so
0021d000-00223000 rwxp 000bb000 fd:02 1834975    /usr/lib/libtcl8.4.so
00225000-00305000 r-xp 00000000 fd:02 1834034    /usr/lib/libtk8.4.so
00305000-00311000 rwxp 000e0000 fd:02 1834034    /usr/lib/libtk8.4.so
007b8000-007d3000 r-xp 00000000 fd:02 1835765    /usr/lib/libdv.so.4.0.3
007d3000-007d5000 rwxp 0001b000 fd:02 1835765    /usr/lib/libdv.so.4.0.3
007d5000-007e1000 rwxp 007d5000 00:00 0 
00bad000-00bbc000 r-xp 00000000 fd:02 1030387    /usr/lib/libXext.so.6.4.0
00bbc000-00bbd000 rwxp 0000e000 fd:02 1030387    /usr/lib/libXext.so.6.4.0
00bbf000-00bda000 r-xp 00000000 fd:02 33548      /lib/ld-2.7.so
00bda000-00bdb000 r-xp 0001a000 fd:02 33548      /lib/ld-2.7.so
00bdb000-00bdc000 rwxp 0001b000 fd:02 33548      /lib/ld-2.7.so
00be2000-00d35000 r-xp 00000000 fd:02 33549      /lib/libc-2.7.so
00d35000-00d37000 r-xp 00153000 fd:02 33549      /lib/libc-2.7.so
00d37000-00d38000 rwxp 00155000 fd:02 33549      /lib/libc-2.7.so
00d38000-00d3b000 rwxp 00d38000 00:00 0 
00d3d000-00d64000 r-xp 00000000 fd:02 33556      /lib/libm-2.7.so
00d64000-00d65000 r-xp 00026000 fd:02 33556      /lib/libm-2.7.so
00d65000-00d66000 rwxp 00027000 fd:02 33556      /lib/libm-2.7.so
00d68000-00d6b000 r-xp 00000000 fd:02 33551      /lib/libdl-2.7.so
00d6b000-00d6c000 r-xp 00002000 fd:02 33551      /lib/libdl-2.7.so
00d6c000-00d6d000 rwxp 00003000 fd:02 33551      /lib/libdl-2.7.so
00d6f000-00d84000 r-xp 00000000 fd:02 33596      /lib/libpthread-2.7.so
00d84000-00d85000 r-xp 00014000 fd:02 33596      /lib/libpthread-2.7.so
00d85000-00d86000 rwxp 00015000 fd:02 33596      /lib/libpthread-2.7.so
00d86000-00d88000 rwxp 00d86000 00:00 0 
00d8a000-00d9c000 r-xp 00000000 fd:02 33553      /lib/libz.so.1.2.3
00d9c000-00d9d000 rwxp 00011000 fd:02 33553      /lib/libz.so.1.2.3
00d9f000-00dba000 r-xp 00000000 fd:02 1030374    /usr/lib/libxcb.so.1.0.0
00dba000-00dbb000 rwxp 0001a000 fd:02 1030374    /usr/lib/libxcb.so.1.0.0
00dbd000-00dbf000 r-xp 00000000 fd:02 1030372    /usr/lib/libXau.so.6.0.0
00dbf000-00dc0000 rwxp 00001000 fd:02 1030372    /usr/lib/libXau.so.6.0.0
00dc2000-00dc3000 r-xp 00000000 fd:02 1030375    /usr/lib/libxcb-xlib.so.0.0.0
00dc3000-00dc4000 rwxp 00000000 fd:02 1030375    /usr/lib/libxcb-xlib.so.0.0.0
00dc6000-00dcb000 r-xp 00000000 fd:02 1030373    /usr/lib/libXdmcp.so.6.0.0
00dcb000-00dcc000 rwxp 00004000 fd:02 1030373    /usr/lib/libXdmcp.so.6.0.0
042da000-043d2000 r-xp 00000000 fd:02 1030376    /usr/lib/libX11.so.6.2.0
043d2000-043d6000 rwxp 000f7000 fd:02 1030376    /usr/lib/libX11.so.6.2.0
04668000-04670000 r-xp 00000000 fd:02 1030384    /usr/lib/libXrender.so.1.3.0
04670000-04671000 rwxp 00007000 fd:02 1030384    /usr/lib/libXrender.so.1.3.0
04678000-0467c000 r-xp 00000000 fd:02 1030390    /usr/lib/libXfixes.so.3.1.0
0467c000-0467d000 rwxp 00003000 fd:02 1030390    /usr/lib/libXfixes.so.3.1.0
0473c000-04745000 r-xp 00000000 fd:02 1030391    /usr/lib/libXcursor.so.1.0.2
04745000-04746000 rwxp 00008000 fd:02 1030391    /usr/lib/libXcursor.so.1.0.2
04ce7000-04cf2000 r-xp 00000000 fd:02 34342      /lib/libgcc_s-4.1.2-20070925.so.1
04cf2000-04cf3000 rwxp 0000a000 fd:02 34342      /lib/libgcc_s-4.1.2-20070925.so.1
04cf5000-04dd5000 r-xp 00000000 fd:02 1030418    /usr/lib/libstdc++.so.6.0.8
04dd5000-04dd9000 r-xp 000df000 fd:02 1030418    /usr/lib/libstdc++.so.6.0.8
04dd9000-04dda000 rwxp 000e3000 fd:02 1030418    /usr/lib/libstdc++.so.6.0.8
04dda000-04de0000 rwxp 04dda000 00:00 0 
08046000-08662000 r-xp 00000000 fd:02 1833994    /usr/bin/vic
08662000-086d7000 rw-p 0061c000 fd:02 1833994    /usr/bin/vic
086d7000-087d6000 rw-p 086d7000 00:00 0 
08ade000-09732000 rw-p 08ade000 00:00 0 
b6e00000-b6e21000 rw-p b6e00000 00:00 0 
b6e21000-b6f00000 ---p b6e21000 00:00 0 
b6fa4000-b6fa9000 rw-s 00000000 00:08 6193208    /SYSV00000000 (deleted)
b6fa9000-b6fae000 rw-s 00000000 00:08 6127668    /SYSV00000000 (deleted)
b6fae000-b6fb3000 rw-s 00000000 00:08 6062129    /SYSV00000000 (deleted)
b6fb3000-b6fb8000 rw-s 00000000 00:08 5996592    /SYSV00000000 (deleted)
b6fb8000-b6fbd000 rw-s 00000000 00:08 5931055    /SYSV00000000 (deleted)
b6fbd000-b6fc2000 rw-s 00000000 00:08 5865518    /SYSV00000000 (deleted)
b6fc2000-b6fc7000 rw-s 00000000 00:08 5799981    /SYSV00000000 (deleted)
b6fc7000-b6fcc000 rw-s 00000000 00:08 5734444    /SYSV00000000 (deleted)
b6fcc000-b6fd1000 rw-s 00000000 00:08 5668907    /SYSV00000000 (deleted)
b6fd1000-b6fd6000 rw-s 00000000 00:08 5603369    /SYSV00000000 (deleted)
b6fd6000-b6fdb000 rw-s 00000000 00:08 5537831    /SYSV00000000 (deleted)
b6fdb000-b75af000 rw-p b6fdb000 00:00 0 
b75af000-b75b0000 ---p b75af000 00:00 0 
b75b0000-b7fb0000 rw-p b75b0000 00:00 0 
b7fb0000-b7fe5000 r--s 00000000 fd:02 131384     /var/db/nscd/hosts
b7fe5000-b7fea000 rw-p b7fe5000 00:00 0 
b7fea000-b7fef000 rw-s 00000000 00:08 5472294    /SYSV00000000 (deleted)
b7fef000-b7ff4000 rw-s 00000000 00:08 5406753    /SYSV00000000 (deleted)
b7ff4000-b7ff9000 rw-s 00000000 00:08 5341214    /SYSV00000000 (deleted)
bffa9000-bffbe000 rw-p bffea000 00:00 0          [stack]
Aborted