[Bug 336479] [NEW] ffmpeg crashes by segmentation fault while encoding many jpeg files from stdin to movie

[Xeelee]

Public bug reported:

Binary package hint: ffmpeg

Hi,

ffmpeg (r11872+debian_3:0.svn20080206-12ubuntu3) crashes by segmentation
fault on my 64bit Ubuntu Intrepid System while encoding a set of many
jpeg files (85784 files) from stdin to a movie. The segmentation fault
happens after reading the 19229th frame.

Sincerely yours
    Alexander Thomas

ffmpeg version: r11872+debian_3:0.svn20080206-12ubuntu3
uname -a: Linux hostname 2.6.27-12-generic #1 SMP Thu Feb 5 09:26:42 UTC 2009 x86_64 GNU/Linux
lsb_release -rd:
  Description:    Ubuntu 8.10
  Release:        8.10
CPU: Intel(R) Core(TM)2 Duo CPU E6750 @ 2.66GHz
RAM: 4GB

Command Line: /usr/bin/ffmpeg -threads 3 -f mjpeg -i - -vcodec libxvid
-r 25 -passlogfile videos/video_test.avi -b 2000k -mbd 2 -v 1 -pass 1 -f
rawvideo -y /dev/null 2>ffmpeg.log

Output:
FFmpeg version r11872+debian_3:0.svn20080206-12ubuntu3, Copyright (c) 2000-2008 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-pp --enable-swscaler --enable-x11grab --prefix=/usr --enable-libgsm --enable-libtheora --enable-libvorbis --enable-pthreads --disable-strip --enable-libfaad --enable-libfaadbin --enable-liba52 --enable-liba52bin --enable-libdc1394 --enable-shared --disable-static
  libavutil version: 49.6.0
  libavcodec version: 51.50.0
  libavformat version: 52.7.0
  libavdevice version: 52.0.0
  built on Oct  3 2008 22:41:23, gcc: 4.3.2
Input #0, mjpeg, from 'pipe:':
  Duration: N/A, bitrate: N/A
    Stream #0.0: Video: mjpeg, yuvj420p, 720x406 [PAR 72:72 DAR 360:203], 25.00 tb(r)
Output #0, rawvideo, to '/dev/null':
    Stream #0.0: Video: libxvid (hq), yuv420p, 720x406 [PAR 1:1 DAR 360:203], q=2-31, pass 1, 2000 kb/s, 25.00 tb(c)
Stream mapping:
  Stream #0.0 -> #0.0
--- 8< ---
Many, many useless lines....
--- >8 ---
frame=19229 fps= 84 q=2.0 size=       0kB time=769.2 bitrate=   0.0kbits/s    
Segmentation fault

dmesg:
[126846.494668] ffmpeg[7717]: segfault at 0 ip 00007feae3eb31c2 sp 00007fffed86cf18 error 4 in libc-2.8.90.so[7feae3e2e000+169000]

Reproduceable (tried on):
Codec: mpeg4, libxvid
Codec-Packages: normal and unstripped
FPS: 25
Bite rate: 800, 800k, 1200k, 2000k and 2400k
Container format: avi and mp4
Threads: any also if not supplied
mbd: any also if not supplied

Solved:
Using svn checkout of current version (1/3/2009 2:00pm UTC).

Source images:
identify frame-0001.jpg:
frame-0001.jpg JPEG 720x406 720x406+0+0 DirectClass 8-bit 76.9961kb
Count: 85784 files in 84 subdirectories.
Mean file size: 70091.5 bytes
Biggest file: 110814 bytes

Additional informations:
Frame source (source of jpeg stream) is a Perl open-pipe-filehandler:
  open(my $ffmpegFD,"|".$ffmpeg) || die("Could not open FFMPEG_PATH in pipe mode: $!\n");
Streaming of the jpeg files:
  open(my $frameFD, $frame) || die("Could not open frame for reading: $!\n");
  binmode($frameFD);
  while( read($frameFD, $buffer, 1024**2) && print $ffmpegFD ($buffer) ) {}

Debug informations were attached on file...

** Affects: ffmpeg (Ubuntu)
     Importance: Undecided
         Status: New

-- 
ffmpeg crashes by segmentation fault while encoding many jpeg files from stdin to movie
https://bugs.launchpad.net/bugs/336479
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