[FFmpeg-trac] #1631(avcodec:open): paf_video crash

[FFmpeg]

#1631: paf_video crash
------------------------------------+-----------------------------------
             Reporter:  ami_stuff   |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  important   |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  paf_video   |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
------------------------------------+-----------------------------------
Changes (by cehoyos):

 * component:  undetermined => avcodec


Comment:

 {{{
 $ valgrind ffmpeg_g -vcodec paf_video -i i263.avi -an -f null -
 ==19521== Memcheck, a memory error detector
 ==19521== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al.
 ==19521== Using Valgrind-3.5.0 and LibVEX; rerun with -h for copyright
 info
 ==19521== Command: ffmpeg_g -vcodec paf_video -i i263.avi -an -f null -
 ==19521==
 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
 Input #0, avi, from 'i263.avi':
   Duration: 00:00:06.67, start: 0.000000, bitrate: 407 kb/s
     Stream #0:0: Video: paf_video (I263 / 0x33363249), pal8, 352x240,
 29.97 tbr, 29.97 tbn, 29.97 tbc
     Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 22050 Hz, mono, s16, 32
 kb/s
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf54.23.100
     Stream #0:0: Video: rawvideo, pal8, 352x240, q=2-31, 200 kb/s, 90k
 tbn, 29.97 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (paf_video -> rawvideo)
 Press [q] to stop, [?] for help
 Error while decoding stream #0:0: Invalid data found when processing input
 ==19521== Invalid write of size 4
 ==19521==    at 0x84AFB63: copy_block4 (dsputil.h:695)
 ==19521==    by 0x84B02E0: decode_0 (paf.c:176)
 ==19521==    by 0x84B0D28: paf_vid_decode (paf.c:299)
 ==19521==    by 0x856836B: avcodec_decode_video2 (utils.c:1509)
 ==19521==    by 0x805B33A: decode_video (ffmpeg.c:1549)
 ==19521==    by 0x805C04A: output_packet (ffmpeg.c:1734)
 ==19521==    by 0x8060554: process_input (ffmpeg.c:2858)
 ==19521==    by 0x80606D6: transcode (ffmpeg.c:2916)
 ==19521==    by 0x8060C38: main (ffmpeg.c:3098)
 ==19521==  Address 0x520c240 is 0 bytes after a block of size 90,112
 alloc'd
 ==19521==    at 0x4CA8E9E: memalign (in
 /usr/lib64/valgrind/vgpreload_memcheck-x86-linux.so)
 ==19521==    by 0x4CA8EFB: posix_memalign (in
 /usr/lib64/valgrind/vgpreload_memcheck-x86-linux.so)
 ==19521==    by 0x87F2830: av_malloc (mem.c:95)
 ==19521==    by 0x87F294A: av_mallocz (mem.c:199)
 ==19521==    by 0x84AFC40: paf_vid_init (paf.c:76)
 ==19521==    by 0x8566A8F: avcodec_open2 (utils.c:961)
 ==19521==    by 0x805C7FA: init_input_stream (ffmpeg.c:1851)
 ==19521==    by 0x805E148: transcode_init (ffmpeg.c:2255)
 ==19521==    by 0x8060628: transcode (ffmpeg.c:2887)
 ==19521==    by 0x8060C38: main (ffmpeg.c:3098)
 ==19521==
     Last message repeated 199 times
 frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=
 0.0kbits/s
 video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead nan%
 Output file is empty, nothing was encoded (check -ss / -t / -frames
 parameters if used)
 ==19521==
 ==19521== HEAP SUMMARY:
 ==19521==     in use at exit: 0 bytes in 0 blocks
 ==19521==   total heap usage: 1,773 allocs, 1,773 frees, 2,497,201 bytes
 allocated
 ==19521==
 ==19521== All heap blocks were freed -- no leaks are possible
 ==19521==
 ==19521== For counts of detected and suppressed errors, rerun with: -v
 ==19521== ERROR SUMMARY: 1600 errors from 1 contexts (suppressed: 3 from
 3)
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1631#comment:2>
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