[FFmpeg-trac] #5558(undetermined:new): concat protocol should run in "-safe 0" mode by default
FFmpeg
trac at avcodec.org
Sun May 15 05:43:49 CEST 2016
#5558: concat protocol should run in "-safe 0" mode by default
-------------------------------------+-------------------------------------
Reporter: GrayFace | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Summary of the bug:
It's very hard for me to imagine a task for which "-safe 1" makes sense.
It probably involves list being obtained from outside source instead of
being generated. What's for sure is that it's a sophisticated task for
which figuring out and specifying additional parameters is not a problem.
For all regular users of "concat" option (me included) the "safe mode"
brings only troubles, e.g. https://ffmpeg.org/pipermail/ffmpeg-
user/2016-April/031560.html
No one knows why it's there, because the documentation doesn't say
anything about rationale: https://www.ffmpeg.org/ffmpeg-
formats.html#Options
Obviously, no backward compatibility.
How to reproduce:
{{{
% ffmpeg -nostats -f concat -i List.txt -c copy output
(List.txt contains absolute paths)
ffmpeg version N-79947-gcd244fa
built on 20160512
}}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/5558>
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