[FFmpeg-trac] #1516(undetermined:new): Possible dead loop while making snapshot from a MP4

[FFmpeg]

#1516: Possible dead loop while making snapshot from a MP4
-------------------------------------+-------------------------------------
             Reporter:  tewilove     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 CPU 100%.
 How to reproduce:
 [akira at localhost Temp]$ ffmpeg -i sm18304895.mp4 -y -f image2 -ss 479.342
 -vframes 1 208bbd48b6dd6d31a5a0636dfd88ead0.jpg
 ffmpeg version 0.10.4 Copyright (c) 2000-2012 the FFmpeg developers
   built on Jun 13 2012 09:51:06 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5)
   configuration: --prefix=/usr --bindir=/usr/bin
 --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg
 --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --extra-
 cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-
 protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --enable-bzlib
 --disable-crystalhd --enable-gnutls --enable-libass --enable-libcdio
 --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-
 libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-
 libopenjpeg --enable-libpulse --enable-librtmp --enable-libschroedinger
 --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2
 --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
 --enable-avfilter --enable-postproc --enable-pthreads --disable-static
 --enable-shared --enable-gpl --disable-debug --disable-stripping
 --shlibdir=/usr/lib64 --enable-runtime-cpudetect
   libavutil      51. 35.100 / 51. 35.100
   libavcodec     53. 61.100 / 53. 61.100
   libavformat    53. 32.100 / 53. 32.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 61.100 /  2. 61.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  6.100 /  0.  6.100
   libpostproc    52.  0.100 / 52.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sm18304895.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 1
     compatible_brands: isom
     creation_time   : 2012-07-08 02:22:48
     copyright       :
     copyright-eng   :
   Duration: 00:09:43.42, start: 0.000000, bitrate: 1389 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1280x720, 1319 kb/s, 60 fps, 239.76 tbr, 240k tbn, 120 tbc
     Metadata:
       creation_time   : 2012-07-08 05:21:08
       handler_name    : Imported with GPAC 0.4.6-DEV-git-62b7369
     Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo,
 s16, 62 kb/s
     Metadata:
       creation_time   : 2012-07-08 02:22:48
       handler_name    : GPAC ISO Audio Handler
 Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting
 format 'yuvj420p'
 [buffer @ 0xf7f8a0] w:1280 h:720 pixfmt:yuv420p tb:1/1000000 sar:0/1
 sws_param:
 [buffersink @ 0xf7fca0] auto-inserting filter 'auto-inserted scale 0'
 between the filter 'src' and the filter 'out'
 [scale @ 0xf5cec0] w:1280 h:720 fmt:yuv420p -> w:1280 h:720 fmt:yuvj420p
 flags:0x4
 Output #0, image2, to '208bbd48b6dd6d31a5a0636dfd88ead0.jpg':
   Metadata:
     major_brand     : isom
     minor_version   : 1
     compatible_brands: isom
     creation_time   : 2012-07-08 02:22:48
     copyright       :
     copyright-eng   :
     encoder         : Lavf53.32.100
     Stream #0:0(und): Video: mjpeg, yuvj420p, 1280x720, q=2-31, 200 kb/s,
 90k tbn, 239.76 tbc
     Metadata:
       creation_time   : 2012-07-08 05:21:08
       handler_name    : Imported with GPAC 0.4.6-DEV-git-62b7369
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 -> mjpeg)
 Press [q] to stop, [?] for help

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1516>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker