[FFmpeg-trac] #11256(avfilter:new): How to use "curves" filter with "hwupload" in FFmpeg?

[FFmpeg]

#11256: How to use "curves" filter with "hwupload" in FFmpeg?
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             Reporter:  elias tsolis  |                    Owner:  (none)
                 Type:  task          |                   Status:  new
             Priority:  normal        |                Component:  avfilter
              Version:  7.0           |               Resolution:
             Keywords:  curves        |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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Comment (by MasterQuestionable):

 ͏    Your Unix Shell syntax is invalid: bad quoting.
 ͏    To embedded literal !`'` within such quoting: use !`'\''`.
 ͏    E.g. "a'b", as 'a'\!''b'.

 ͏    You may also look at:
 ͏    https://www.shellcheck.net/
 ͏    https://www.gnu.org/software/bash/manual/bash.html#Quoting
 ͏
 https://pubs.opengroup.org/onlinepubs/9799919799/utilities/V3_chap02.html
 ͏
 https://pubs.opengroup.org/onlinepubs/9799919799/xrat/V4_xcu_chap01.html#tag_23_02_02
 ͏    ; for reference.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11256#comment:5>
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