[FFmpeg-trac] #4170(ffmpeg:closed): ffmpeg is modifying shell memory?

FFmpeg trac at avcodec.org
Wed Dec 10 11:28:00 CET 2014


#4170: ffmpeg is modifying shell memory?
-------------------------------------+-----------------------------------
             Reporter:  MisterE2002  |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:  ffmpeg
              Version:  unspecified  |               Resolution:  invalid
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  1            |
-------------------------------------+-----------------------------------
Changes (by Cigaes):

 * analyzed:  0 => 1
 * keywords:  bash loop strange output =>
 * status:  new => closed
 * component:  undetermined => ffmpeg
 * resolution:   => invalid


Comment:

 {{{ffmpeg}}} reads on its standard input, and in this script, the standard
 input is connected to {{{echo "$list" |sort}}}; therefore, {{{ffmpeg}}} is
 competing with {{{read file}}} for the output of {{{sort}}}.

 By the way, I hope you realize that this script will break utterly when
 certain special characters. If you can not do your task with a simple
 {{{*.mp4}}}, then you should drop the shell and use a real language.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4170#comment:1>
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