[FFmpeg-trac] #5558(undetermined:closed): concat protocol should run in "-safe 0" mode by default

FFmpeg trac at avcodec.org
Mon May 16 22:06:45 CEST 2016

#5558: concat protocol should run in "-safe 0" mode by default
             Reporter:  GrayFace     |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:  wontfix
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0

Comment (by GrayFace):

 Wow! Yet, I don't see how this applies to command-line "-f concat"
 First, it talks about "concat:file1|file2" protocol, not "-f concat"
 demuxer (turns out I was wrong calling it "protocol" in the ticket name).
 Second, it talks about it being found in a movie file, obviously an
 untrusted source, unlike command-line. Shouldn't the list explicitly
 specified in command line as "-f concat" be trusted (only the list itself,
 not the movies specified by it)?

Ticket URL: <https://trac.ffmpeg.org/ticket/5558#comment:2>
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