[FFmpeg-trac] #1633(avcodec:open): sp5x crash

FFmpeg trac at avcodec.org
Sat Aug 11 14:56:04 CEST 2012


#1633: sp5x crash
------------------------------------+-----------------------------------
             Reporter:  ami_stuff   |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  important   |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  sp5x        |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
------------------------------------+-----------------------------------

Comment (by cehoyos):

 {{{
 $ valgrind ffmpeg_g -vcodec sp5x -i rgb_predleft.avi -f null -
 ==19451== Memcheck, a memory error detector
 ==19451== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al.
 ==19451== Using Valgrind-3.5.0 and LibVEX; rerun with -h for copyright
 info
 ==19451== Command: ffmpeg_g -vcodec sp5x -i rgb_predleft.avi -f null -
 ==19451==
 ffmpeg version N-43451-g48d20b9 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Aug 11 2012 14:43:15 with gcc 4.6.1 (GCC)
   configuration: --cc='/usr/local/gcc-4.6.1/bin/gcc -m32' --disable-
 optimizations
   libavutil      51. 67.100 / 51. 67.100
   libavcodec     54. 51.100 / 54. 51.100
   libavformat    54. 23.100 / 54. 23.100
   libavdevice    54.  2.100 / 54.  2.100
   libavfilter     3.  7.100 /  3.  7.100
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 15.100 /  0. 15.100
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x507e728)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 Input #0, avi, from 'rgb_predleft.avi':
   Duration: 00:00:07.00, start: 0.000000, bitrate: 1512 kb/s
     Stream #0:0: Video: sp5x (HFYU / 0x55594648), yuvj420p, 200x150, 6
 tbr, 6 tbn, 6 tbc
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf54.23.100
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuvj420p, 200x150,
 q=2-31, 200 kb/s, 90k tbn, 6 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (sp5x -> rawvideo)
 Press [q] to stop, [?] for help
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [null @ 0x50cc460] Encoder did not produce proper pts, making some up.
 [sp5x @ 0x507b620] error count: 268435457
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 268435472
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 268435458
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 268435460
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 66
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 268435466
 [sp5x @ 0x507b620] error y=0 x=0
 ==19451== Invalid write of size 1
 ==19451==    at 0x8533309: sp5x_decode_frame (sp5xdec.c:84)
 ==19451==    by 0x856836B: avcodec_decode_video2 (utils.c:1509)
 ==19451==    by 0x805B33A: decode_video (ffmpeg.c:1549)
 ==19451==    by 0x805C04A: output_packet (ffmpeg.c:1734)
 ==19451==    by 0x8060554: process_input (ffmpeg.c:2858)
 ==19451==    by 0x80606D6: transcode (ffmpeg.c:2916)
 ==19451==    by 0x8060C38: main (ffmpeg.c:3098)
 ==19451==  Address 0x52a6668 is 0 bytes after a block of size 37,000
 alloc'd
 ==19451==    at 0x4CA8E9E: memalign (in
 /usr/lib64/valgrind/vgpreload_memcheck-x86-linux.so)
 ==19451==    by 0x4CA8EFB: posix_memalign (in
 /usr/lib64/valgrind/vgpreload_memcheck-x86-linux.so)
 ==19451==    by 0x87F2830: av_malloc (mem.c:95)
 ==19451==    by 0x87F294A: av_mallocz (mem.c:199)
 ==19451==    by 0x8532F5C: sp5x_decode_frame (sp5xdec.c:47)
 ==19451==    by 0x856836B: avcodec_decode_video2 (utils.c:1509)
 ==19451==    by 0x805B33A: decode_video (ffmpeg.c:1549)
 ==19451==    by 0x805C04A: output_packet (ffmpeg.c:1734)
 ==19451==    by 0x8060554: process_input (ffmpeg.c:2858)
 ==19451==    by 0x80606D6: transcode (ffmpeg.c:2916)
 ==19451==    by 0x8060C38: main (ffmpeg.c:3098)
 ==19451==
 ==19451== Invalid read of size 1
 ==19451==    at 0x8420A7B: ff_mjpeg_find_marker (mjpegdec.c:1528)
 ==19451==    by 0x8420D12: ff_mjpeg_decode_frame (mjpegdec.c:1606)
 ==19451==    by 0x8533346: sp5x_decode_frame (sp5xdec.c:89)
 ==19451==    by 0x856836B: avcodec_decode_video2 (utils.c:1509)
 ==19451==    by 0x805B33A: decode_video (ffmpeg.c:1549)
 ==19451==    by 0x805C04A: output_packet (ffmpeg.c:1734)
 ==19451==    by 0x8060554: process_input (ffmpeg.c:2858)
 ==19451==    by 0x80606D6: transcode (ffmpeg.c:2916)
 ==19451==    by 0x8060C38: main (ffmpeg.c:3098)
 ==19451==  Address 0x52a6668 is 0 bytes after a block of size 37,000
 alloc'd
 ==19451==    at 0x4CA8E9E: memalign (in
 /usr/lib64/valgrind/vgpreload_memcheck-x86-linux.so)
 ==19451==    by 0x4CA8EFB: posix_memalign (in
 /usr/lib64/valgrind/vgpreload_memcheck-x86-linux.so)
 ==19451==    by 0x87F2830: av_malloc (mem.c:95)
 ==19451==    by 0x87F294A: av_mallocz (mem.c:199)
 ==19451==    by 0x8532F5C: sp5x_decode_frame (sp5xdec.c:47)
 ==19451==    by 0x856836B: avcodec_decode_video2 (utils.c:1509)
 ==19451==    by 0x805B33A: decode_video (ffmpeg.c:1549)
 ==19451==    by 0x805C04A: output_packet (ffmpeg.c:1734)
 ==19451==    by 0x8060554: process_input (ffmpeg.c:2858)
 ==19451==    by 0x80606D6: transcode (ffmpeg.c:2916)
 ==19451==    by 0x8060C38: main (ffmpeg.c:3098)
 ==19451==
 [sp5x @ 0x507b620] error count: 268435456
 [sp5x @ 0x507b620] error y=0 x=0
 ==19451== Invalid read of size 1
 ==19451==    at 0x842095F: find_marker (mjpegdec.c:1490)
 ==19451==    by 0x84209D5: ff_mjpeg_find_marker (mjpegdec.c:1510)
 ==19451==    by 0x8420D12: ff_mjpeg_decode_frame (mjpegdec.c:1606)
 ==19451==    by 0x8533346: sp5x_decode_frame (sp5xdec.c:89)
 ==19451==    by 0x856836B: avcodec_decode_video2 (utils.c:1509)
 ==19451==    by 0x805B33A: decode_video (ffmpeg.c:1549)
 ==19451==    by 0x805C04A: output_packet (ffmpeg.c:1734)
 ==19451==    by 0x8060554: process_input (ffmpeg.c:2858)
 ==19451==    by 0x80606D6: transcode (ffmpeg.c:2916)
 ==19451==    by 0x8060C38: main (ffmpeg.c:3098)
 ==19451==  Address 0x52a6668 is 0 bytes after a block of size 37,000
 alloc'd
 ==19451==    at 0x4CA8E9E: memalign (in
 /usr/lib64/valgrind/vgpreload_memcheck-x86-linux.so)
 ==19451==    by 0x4CA8EFB: posix_memalign (in
 /usr/lib64/valgrind/vgpreload_memcheck-x86-linux.so)
 ==19451==    by 0x87F2830: av_malloc (mem.c:95)
 ==19451==    by 0x87F294A: av_mallocz (mem.c:199)
 ==19451==    by 0x8532F5C: sp5x_decode_frame (sp5xdec.c:47)
 ==19451==    by 0x856836B: avcodec_decode_video2 (utils.c:1509)
 ==19451==    by 0x805B33A: decode_video (ffmpeg.c:1549)
 ==19451==    by 0x805C04A: output_packet (ffmpeg.c:1734)
 ==19451==    by 0x8060554: process_input (ffmpeg.c:2858)
 ==19451==    by 0x80606D6: transcode (ffmpeg.c:2916)
 ==19451==    by 0x8060C38: main (ffmpeg.c:3098)
 ==19451==
 ==19451== Invalid read of size 1
 ==19451==    at 0x842098E: find_marker (mjpegdec.c:1492)
 ==19451==    by 0x84209D5: ff_mjpeg_find_marker (mjpegdec.c:1510)
 ==19451==    by 0x8420D12: ff_mjpeg_decode_frame (mjpegdec.c:1606)
 ==19451==    by 0x8533346: sp5x_decode_frame (sp5xdec.c:89)
 ==19451==    by 0x856836B: avcodec_decode_video2 (utils.c:1509)
 ==19451==    by 0x805B33A: decode_video (ffmpeg.c:1549)
 ==19451==    by 0x805C04A: output_packet (ffmpeg.c:1734)
 ==19451==    by 0x8060554: process_input (ffmpeg.c:2858)
 ==19451==    by 0x80606D6: transcode (ffmpeg.c:2916)
 ==19451==    by 0x8060C38: main (ffmpeg.c:3098)
 ==19451==  Address 0x52a6668 is 0 bytes after a block of size 37,000
 alloc'd
 ==19451==    at 0x4CA8E9E: memalign (in
 /usr/lib64/valgrind/vgpreload_memcheck-x86-linux.so)
 ==19451==    by 0x4CA8EFB: posix_memalign (in
 /usr/lib64/valgrind/vgpreload_memcheck-x86-linux.so)
 ==19451==    by 0x87F2830: av_malloc (mem.c:95)
 ==19451==    by 0x87F294A: av_mallocz (mem.c:199)
 ==19451==    by 0x8532F5C: sp5x_decode_frame (sp5xdec.c:47)
 ==19451==    by 0x856836B: avcodec_decode_video2 (utils.c:1509)
 ==19451==    by 0x805B33A: decode_video (ffmpeg.c:1549)
 ==19451==    by 0x805C04A: output_packet (ffmpeg.c:1734)
 ==19451==    by 0x8060554: process_input (ffmpeg.c:2858)
 ==19451==    by 0x80606D6: transcode (ffmpeg.c:2916)
 ==19451==    by 0x8060C38: main (ffmpeg.c:3098)
 ==19451==
 [sp5x @ 0x507b620] error count: 268435492
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 268435495
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 268435461
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 65
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 68
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 68
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 67
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 68
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 frame=   30 fps=0.0 q=0.0 size=       0kB time=00:00:05.00 bitrate=
 0.0kbits/s
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] error count: 268435465
 [sp5x @ 0x507b620] error y=0 x=0
 [sp5x @ 0x507b620] mjpeg_decode_dc: bad vlc: 0:0 (0x51a3108)
 [sp5x @ 0x507b620] error dc
 [sp5x @ 0x507b620] error y=0 x=0
 frame=   42 fps=0.0 q=0.0 Lsize=       0kB time=00:00:07.00 bitrate=
 0.0kbits/s
 video:3kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 -100.000000%
 ==19451==
 ==19451== HEAP SUMMARY:
 ==19451==     in use at exit: 0 bytes in 0 blocks
 ==19451==   total heap usage: 2,744 allocs, 2,744 frees, 6,054,742 bytes
 allocated
 ==19451==
 ==19451== All heap blocks were freed -- no leaks are possible
 ==19451==
 ==19451== For counts of detected and suppressed errors, rerun with: -v
 ==19451== ERROR SUMMARY: 72 errors from 4 contexts (suppressed: 3 from
 3)}}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1633#comment:2>
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