[FFmpeg-trac] #3210(avfilter:open): Empty format filter argument leads to crash

FFmpeg trac at avcodec.org
Mon Dec 9 10:20:24 CET 2013


#3210: Empty format filter argument leads to crash
-------------------------------------+-------------------------------------
             Reporter:  ubitux       |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:  crash        |               Blocked By:
  SIGSEGV regression                 |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * keywords:  crash SIGSEGV => crash SIGSEGV regression
 * priority:  normal => important
 * status:  new => open


Comment:

 Decoding fails since 2a2a643c / 0af7fe1f - the crash is a regression since
 dd2eaf57 / 1dd35611
 {{{
 $ ffmpeg -f lavfi -i testsrc -vf format= -f null -
 ffmpeg version N-53231-g71b7427 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Dec  9 2013 10:18:58 with gcc 4.7 (SUSE Linux)
   configuration:
   libavutil      52. 33.100 / 52. 33.100
   libavcodec     55. 10.100 / 55. 10.100
   libavformat    55.  7.100 / 55.  7.100
   libavdevice    55.  0.100 / 55.  0.100
   libavfilter     3. 68.101 /  3. 68.101
   libswscale      2.  3.100 /  2.  3.100
   libswresample   0. 17.102 /  0. 17.102
 Input #0, lavfi, from 'testsrc':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240
 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
 Impossible to convert between the formats supported by the filter 'graph 0
 input from stream 0:0' and the filter 'auto-inserted scaler 0'
 Error opening filters!
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/3210#comment:1>
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