[FFmpeg-trac] #890(FFmpeg:new): Use of uninitialised value of size 8 with zmbv file

[FFmpeg]

#890: Use of uninitialised value of size 8 with zmbv file
---------------------------------------+----------------------------------
             Reporter:  oanastratulat  |                    Owner:
                 Type:  defect         |                   Status:  new
             Priority:  important      |                Component:  FFmpeg
              Version:  git-master     |               Resolution:
             Keywords:                 |               Blocked By:
             Blocking:                 |  Reproduced by developer:  0
Analyzed by developer:  0              |
---------------------------------------+----------------------------------

Comment (by oanastratulat):

 {{{
 ==26566== Memcheck, a memory error detector
 ==26566== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
 ==26566== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright
 info
 ==26566== Command: ./ffmpeg_g -i
 /Users/vladvladvictorvictor/Downloads/crash2 -f null -
 ==26566==
 --26566-- ./ffmpeg_g:
 --26566-- dSYM directory is missing; consider using --dsymutil=yes
 ffmpeg version N-36539-g4dfb74c Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Jan  6 2012 20:24:09 with llvm_gcc 4.2.1 (Based on Apple Inc.
 build 5658) (LLVM build 2336.1.00)
   configuration: samples='~/Desktop/fate-suite-ffmpeg/'
   libavutil      51. 34.100 / 51. 34.100
   libavcodec     53. 54.100 / 53. 54.100
   libavformat    53. 29.100 / 53. 29.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 57.101 /  2. 57.101
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  5.100 /  0.  5.100
 Input #0, avi, from '/Users/vladvladvictorvictor/Downloads/crash2':
   Duration: 00:00:45.55, start: 0.000000, bitrate: 3 kb/s
     Stream #0:0: Video: zmbv (ZMBV / 0x56424D5A), rgb24, 320x200, 70.09
 fps, 70.09 tbr, 70.09 tbn, 70.09 tbc
     Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2
 channels, s16, 1411 kb/s
 [buffer @ 0x101141780] w:320 h:200 pixfmt:rgb24 tb:1/1000000 sar:0/1
 sws_param:
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf53.29.100
     Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x200,
 q=2-31, 200 kb/s, 90k tbn, 70.09 tbc
     Stream #0:1: Audio: pcm_s16le, 44100 Hz, 2 channels, s16, 1411 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (zmbv -> rawvideo)
   Stream #0:1 -> #0:1 (pcm_s16le -> pcm_s16le)
 Press [q] to stop, [?] for help
 ==26566== Use of uninitialised value of size 8
 ==26566==    at 0x1005776AE: decode_frame (in ./ffmpeg_g)
 ==26566==
 ==26566== Use of uninitialised value of size 8
 ==26566==    at 0x1005776D3: decode_frame (in ./ffmpeg_g)
 ==26566==
 ==26566== Use of uninitialised value of size 8
 ==26566==    at 0x1005776F9: decode_frame (in ./ffmpeg_g)
 ==26566==
 ==26566==
 ==26566== Process terminating with default action of signal 11 (SIGSEGV)
 ==26566==  General Protection Fault
 ==26566==    at 0x3B066CD:
 misaligned_stack_error_entering_dyld_stub_binder (in
 /usr/lib/system/libdyld.dylib)
 ==26566==    by 0x10077002F: ??? (in ./ffmpeg_g)
 ==26566==    by 0x5B3: ???
 ==26566==    by 0x10000377D: sigterm_handler (in ./ffmpeg_g)
 ==26566==
 ==26566== HEAP SUMMARY:
 ==26566==     in use at exit: 70,982,369 bytes in 858,069 blocks
 ==26566==   total heap usage: 858,835 allocs, 766 frees, 72,545,803 bytes
 allocated
 ==26566==
 ==26566== LEAK SUMMARY:
 ==26566==    definitely lost: 18 bytes in 1 blocks
 ==26566==    indirectly lost: 0 bytes in 0 blocks
 ==26566==      possibly lost: 0 bytes in 0 blocks
 ==26566==    still reachable: 70,982,351 bytes in 858,068 blocks
 ==26566==         suppressed: 0 bytes in 0 blocks
 ==26566== Rerun with --leak-check=full to see details of leaked memory
 ==26566==
 ==26566== For counts of detected and suppressed errors, rerun with: -v
 ==26566== Use --track-origins=yes to see where uninitialised values come
 from
 ==26566== ERROR SUMMARY: 192000 errors from 3 contexts (suppressed: 448
 from 8)
 Segmentation fault: 11

 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/890#comment:1>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker