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doc/filters: propose solutions to avoid shell escaping

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Reference drawtext textfile option and ffmpeg -filter_complex_script
and -filter_script as possible solutions to avoid shell escaping.

Address issue:
http://trac.ffmpeg.org/ticket/9008
This commit is contained in:
Stefano Sabatini
2023-03-26 17:47:52 +02:00
parent 030b34eac9
commit 7792f53e5e
2 changed files with 19 additions and 5 deletions
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doc/ffmpeg.texi
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@@ -769,6 +769,7 @@ syntax.
See the @ref{filter_complex_option,,-filter_complex option} if you
want to create filtergraphs with multiple inputs and/or outputs.
@anchor{filter_script option}
@item -filter_script[:@var{stream_specifier}] @var{filename} (@emph{output,per-stream})
This option is similar to @option{-filter}, the only difference is that its
argument is the name of the file from which a filtergraph description is to be
@@ -1978,6 +1979,7 @@ The default is the number of available CPUs.
Define a complex filtergraph, i.e. one with arbitrary number of inputs and/or
outputs. Equivalent to @option{-filter_complex}.
@anchor{filter_complex_script option}
@item -filter_complex_script @var{filename} (@emph{global})
This option is similar to @option{-filter_complex}, the only difference is that
its argument is the name of the file from which a complex filtergraph